Adding upstream version 1.0.1.upstream/1.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

33 files changed, 12260 insertions, 0 deletions

diff --git a/mesonbuild/compilers/__init__.py b/mesonbuild/compilers/__init__.py
new file mode 100644
index 0000000..c516aab
--- /dev/null
+++ b/mesonbuild/compilers/__init__.py
@@ -0,0 +1,97 @@
+# Copyright 2017 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Public symbols for compilers sub-package when using 'from . import compilers'
+__all__ = [
+    'Compiler',
+    'RunResult',
+
+    'all_languages',
+    'base_options',
+    'clib_langs',
+    'clink_langs',
+    'c_suffixes',
+    'cpp_suffixes',
+    'get_base_compile_args',
+    'get_base_link_args',
+    'is_assembly',
+    'is_header',
+    'is_library',
+    'is_llvm_ir',
+    'is_object',
+    'is_source',
+    'is_known_suffix',
+    'lang_suffixes',
+    'LANGUAGES_USING_LDFLAGS',
+    'sort_clink',
+    'SUFFIX_TO_LANG',
+
+    'compiler_from_language',
+    'detect_compiler_for',
+    'detect_static_linker',
+    'detect_c_compiler',
+    'detect_cpp_compiler',
+    'detect_cuda_compiler',
+    'detect_fortran_compiler',
+    'detect_objc_compiler',
+    'detect_objcpp_compiler',
+    'detect_java_compiler',
+    'detect_cs_compiler',
+    'detect_vala_compiler',
+    'detect_rust_compiler',
+    'detect_d_compiler',
+    'detect_swift_compiler',
+]
+
+# Bring symbols from each module into compilers sub-package namespace
+from .compilers import (
+    Compiler,
+    RunResult,
+    all_languages,
+    base_options,
+    clib_langs,
+    clink_langs,
+    c_suffixes,
+    cpp_suffixes,
+    get_base_compile_args,
+    get_base_link_args,
+    is_header,
+    is_source,
+    is_assembly,
+    is_llvm_ir,
+    is_object,
+    is_library,
+    is_known_suffix,
+    lang_suffixes,
+    LANGUAGES_USING_LDFLAGS,
+    sort_clink,
+    SUFFIX_TO_LANG,
+)
+from .detect import (
+    compiler_from_language,
+    detect_compiler_for,
+    detect_static_linker,
+    detect_c_compiler,
+    detect_cpp_compiler,
+    detect_cuda_compiler,
+    detect_objc_compiler,
+    detect_objcpp_compiler,
+    detect_fortran_compiler,
+    detect_java_compiler,
+    detect_cs_compiler,
+    detect_vala_compiler,
+    detect_rust_compiler,
+    detect_d_compiler,
+    detect_swift_compiler,
+)
diff --git a/mesonbuild/compilers/asm.py b/mesonbuild/compilers/asm.py
new file mode 100644
index 0000000..9a95599
--- /dev/null
+++ b/mesonbuild/compilers/asm.py
@@ -0,0 +1,231 @@
+import os
+import typing as T
+
+from ..mesonlib import EnvironmentException, get_meson_command
+from .compilers import Compiler
+
+if T.TYPE_CHECKING:
+    from ..environment import Environment
+
+nasm_optimization_args = {
+    'plain': [],
+    '0': ['-O0'],
+    'g': ['-O0'],
+    '1': ['-O1'],
+    '2': ['-Ox'],
+    '3': ['-Ox'],
+    's': ['-Ox'],
+}  # type: T.Dict[str, T.List[str]]
+
+
+class NasmCompiler(Compiler):
+    language = 'nasm'
+    id = 'nasm'
+
+    def needs_static_linker(self) -> bool:
+        return True
+
+    def get_always_args(self) -> T.List[str]:
+        cpu = '64' if self.info.is_64_bit else '32'
+        if self.info.is_windows() or self.info.is_cygwin():
+            plat = 'win'
+            define = f'WIN{cpu}'
+        elif self.info.is_darwin():
+            plat = 'macho'
+            define = 'MACHO'
+        else:
+            plat = 'elf'
+            define = 'ELF'
+        args = ['-f', f'{plat}{cpu}', f'-D{define}']
+        if self.info.is_64_bit:
+            args.append('-D__x86_64__')
+        return args
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['-Werror']
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return ['-o', outputname]
+
+    def unix_args_to_native(self, args: T.List[str]) -> T.List[str]:
+        outargs = []
+        for arg in args:
+            if arg == '-pthread':
+                continue
+            outargs.append(arg)
+        return outargs
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return nasm_optimization_args[optimization_level]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        if is_debug:
+            if self.info.is_windows():
+                return []
+            return ['-g', '-F', 'dwarf']
+        return []
+
+    def get_depfile_suffix(self) -> str:
+        return 'd'
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['-MD', outfile, '-MQ', outtarget]
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        if self.info.cpu_family not in {'x86', 'x86_64'}:
+            raise EnvironmentException(f'ASM compiler {self.id!r} does not support {self.info.cpu_family} CPU family')
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        # FIXME: Not implemented
+        return []
+
+    def get_pic_args(self) -> T.List[str]:
+        return []
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if not path:
+            path = '.'
+        return ['-I' + path]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+        return parameter_list
+
+    def get_crt_compile_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        return []
+
+class YasmCompiler(NasmCompiler):
+    id = 'yasm'
+
+    def get_exelist(self, ccache: bool = True) -> T.List[str]:
+        # Wrap yasm executable with an internal script that will write depfile.
+        exelist = super().get_exelist(ccache)
+        return get_meson_command() + ['--internal', 'yasm'] + exelist
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        if is_debug:
+            if self.info.is_windows():
+                return ['-g', 'null']
+            return ['-g', 'dwarf2']
+        return []
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['--depfile', outfile]
+
+# https://learn.microsoft.com/en-us/cpp/assembler/masm/ml-and-ml64-command-line-reference
+class MasmCompiler(Compiler):
+    language = 'masm'
+    id = 'ml'
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return ['/c']
+
+    def get_argument_syntax(self) -> str:
+        return 'msvc'
+
+    def needs_static_linker(self) -> bool:
+        return True
+
+    def get_always_args(self) -> T.List[str]:
+        return ['/nologo']
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['/WX']
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return ['/Fo', outputname]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return []
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        if is_debug:
+            return ['/Zi']
+        return []
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        if self.info.cpu_family not in {'x86', 'x86_64'}:
+            raise EnvironmentException(f'ASM compiler {self.id!r} does not support {self.info.cpu_family} CPU family')
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        # FIXME: Not implemented
+        return []
+
+    def get_pic_args(self) -> T.List[str]:
+        return []
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if not path:
+            path = '.'
+        return ['-I' + path]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '/I':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+        return parameter_list
+
+    def get_crt_compile_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        return []
+
+    def depfile_for_object(self, objfile: str) -> T.Optional[str]:
+        return None
+
+
+# https://learn.microsoft.com/en-us/cpp/assembler/arm/arm-assembler-command-line-reference
+class MasmARMCompiler(Compiler):
+    language = 'masm'
+    id = 'armasm'
+
+    def needs_static_linker(self) -> bool:
+        return True
+
+    def get_always_args(self) -> T.List[str]:
+        return ['-nologo']
+
+    def get_werror_args(self) -> T.List[str]:
+        return []
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return ['-o', outputname]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return []
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        if is_debug:
+            return ['-g']
+        return []
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        if self.info.cpu_family not in {'arm', 'aarch64'}:
+            raise EnvironmentException(f'ASM compiler {self.id!r} does not support {self.info.cpu_family} CPU family')
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        # FIXME: Not implemented
+        return []
+
+    def get_pic_args(self) -> T.List[str]:
+        return []
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if not path:
+            path = '.'
+        return ['-i' + path]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+        return parameter_list
+
+    def get_crt_compile_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        return []
+
+    def depfile_for_object(self, objfile: str) -> T.Optional[str]:
+        return None
diff --git a/mesonbuild/compilers/c.py b/mesonbuild/compilers/c.py
new file mode 100644
index 0000000..4d9283a
--- /dev/null
+++ b/mesonbuild/compilers/c.py
@@ -0,0 +1,740 @@
+# Copyright 2012-2020 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import os.path
+import typing as T
+
+from .. import coredata
+from .. import mlog
+from ..mesonlib import MesonException, version_compare, OptionKey
+from .c_function_attributes import C_FUNC_ATTRIBUTES
+from .mixins.clike import CLikeCompiler
+from .mixins.ccrx import CcrxCompiler
+from .mixins.xc16 import Xc16Compiler
+from .mixins.compcert import CompCertCompiler
+from .mixins.ti import TICompiler
+from .mixins.arm import ArmCompiler, ArmclangCompiler
+from .mixins.visualstudio import MSVCCompiler, ClangClCompiler
+from .mixins.gnu import GnuCompiler
+from .mixins.gnu import gnu_common_warning_args, gnu_c_warning_args
+from .mixins.intel import IntelGnuLikeCompiler, IntelVisualStudioLikeCompiler
+from .mixins.clang import ClangCompiler
+from .mixins.elbrus import ElbrusCompiler
+from .mixins.pgi import PGICompiler
+from .mixins.emscripten import EmscriptenMixin
+from .compilers import (
+    gnu_winlibs,
+    msvc_winlibs,
+    Compiler,
+)
+
+if T.TYPE_CHECKING:
+    from ..coredata import MutableKeyedOptionDictType, KeyedOptionDictType
+    from ..dependencies import Dependency
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..linkers import DynamicLinker
+    from ..mesonlib import MachineChoice
+    from ..programs import ExternalProgram
+    from .compilers import CompileCheckMode
+
+    CompilerMixinBase = Compiler
+else:
+    CompilerMixinBase = object
+
+
+class CCompiler(CLikeCompiler, Compiler):
+    def attribute_check_func(self, name: str) -> str:
+        try:
+            return C_FUNC_ATTRIBUTES[name]
+        except KeyError:
+            raise MesonException(f'Unknown function attribute "{name}"')
+
+    language = 'c'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        # If a child ObjC or CPP class has already set it, don't set it ourselves
+        Compiler.__init__(self, ccache, exelist, version, for_machine, info,
+                          is_cross=is_cross, full_version=full_version, linker=linker)
+        CLikeCompiler.__init__(self, exe_wrapper)
+
+    def get_no_stdinc_args(self) -> T.List[str]:
+        return ['-nostdinc']
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        code = 'int main(void) { int class=0; return class; }\n'
+        return self._sanity_check_impl(work_dir, environment, 'sanitycheckc.c', code)
+
+    def has_header_symbol(self, hname: str, symbol: str, prefix: str,
+                          env: 'Environment', *,
+                          extra_args: T.Union[None, T.List[str], T.Callable[['CompileCheckMode'], T.List[str]]] = None,
+                          dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        fargs = {'prefix': prefix, 'header': hname, 'symbol': symbol}
+        t = '''{prefix}
+        #include <{header}>
+        int main(void) {{
+            /* If it's not defined as a macro, try to use as a symbol */
+            #ifndef {symbol}
+                {symbol};
+            #endif
+            return 0;
+        }}'''
+        return self.compiles(t.format(**fargs), env, extra_args=extra_args,
+                             dependencies=dependencies)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = super().get_options()
+        opts.update({
+            OptionKey('std', machine=self.for_machine, lang=self.language): coredata.UserComboOption(
+                'C language standard to use',
+                ['none'],
+                'none',
+            )
+        })
+        return opts
+
+
+class _ClangCStds(CompilerMixinBase):
+
+    """Mixin class for clang based compilers for setting C standards.
+
+    This is used by both ClangCCompiler and ClangClCompiler, as they share
+    the same versions
+    """
+
+    _C17_VERSION = '>=6.0.0'
+    _C18_VERSION = '>=8.0.0'
+    _C2X_VERSION = '>=9.0.0'
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = super().get_options()
+        c_stds = ['c89', 'c99', 'c11']
+        g_stds = ['gnu89', 'gnu99', 'gnu11']
+        # https://releases.llvm.org/6.0.0/tools/clang/docs/ReleaseNotes.html
+        # https://en.wikipedia.org/wiki/Xcode#Latest_versions
+        if version_compare(self.version, self._C17_VERSION):
+            c_stds += ['c17']
+            g_stds += ['gnu17']
+        if version_compare(self.version, self._C18_VERSION):
+            c_stds += ['c18']
+            g_stds += ['gnu18']
+        if version_compare(self.version, self._C2X_VERSION):
+            c_stds += ['c2x']
+            g_stds += ['gnu2x']
+        opts[OptionKey('std', machine=self.for_machine, lang=self.language)].choices = ['none'] + c_stds + g_stds
+        return opts
+
+
+class ClangCCompiler(_ClangCStds, ClangCompiler, CCompiler):
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross, info, exe_wrapper, linker=linker, full_version=full_version)
+        ClangCompiler.__init__(self, defines)
+        default_warn_args = ['-Wall', '-Winvalid-pch']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+                          'everything': ['-Weverything']}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = super().get_options()
+        if self.info.is_windows() or self.info.is_cygwin():
+            opts.update({
+                OptionKey('winlibs', machine=self.for_machine, lang=self.language): coredata.UserArrayOption(
+                    'Standard Win libraries to link against',
+                    gnu_winlibs,
+                ),
+            })
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        std = options[OptionKey('std', machine=self.for_machine, lang=self.language)]
+        if std.value != 'none':
+            args.append('-std=' + std.value)
+        return args
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        if self.info.is_windows() or self.info.is_cygwin():
+            # without a typedict mypy can't understand this.
+            libs = options[OptionKey('winlibs', machine=self.for_machine, lang=self.language)].value.copy()
+            assert isinstance(libs, list)
+            for l in libs:
+                assert isinstance(l, str)
+            return libs
+        return []
+
+
+class ArmLtdClangCCompiler(ClangCCompiler):
+
+    id = 'armltdclang'
+
+
+class AppleClangCCompiler(ClangCCompiler):
+
+    """Handle the differences between Apple Clang and Vanilla Clang.
+
+    Right now this just handles the differences between the versions that new
+    C standards were added.
+    """
+
+    _C17_VERSION = '>=10.0.0'
+    _C18_VERSION = '>=11.0.0'
+    _C2X_VERSION = '>=11.0.0'
+
+
+class EmscriptenCCompiler(EmscriptenMixin, ClangCCompiler):
+
+    id = 'emscripten'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 full_version: T.Optional[str] = None):
+        if not is_cross:
+            raise MesonException('Emscripten compiler can only be used for cross compilation.')
+        if not version_compare(version, '>=1.39.19'):
+            raise MesonException('Meson requires Emscripten >= 1.39.19')
+        ClangCCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                                info, exe_wrapper=exe_wrapper, linker=linker,
+                                defines=defines, full_version=full_version)
+
+
+class ArmclangCCompiler(ArmclangCompiler, CCompiler):
+    '''
+    Keil armclang
+    '''
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker, full_version=full_version)
+        ArmclangCompiler.__init__(self)
+        default_warn_args = ['-Wall', '-Winvalid-pch']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+                          'everything': ['-Weverything']}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'c90', 'c99', 'c11', 'gnu90', 'gnu99', 'gnu11']
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        std = options[OptionKey('std', machine=self.for_machine, lang=self.language)]
+        if std.value != 'none':
+            args.append('-std=' + std.value)
+        return args
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return []
+
+
+class GnuCCompiler(GnuCompiler, CCompiler):
+
+    _C18_VERSION = '>=8.0.0'
+    _C2X_VERSION = '>=9.0.0'
+    _INVALID_PCH_VERSION = ">=3.4.0"
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross, info, exe_wrapper, linker=linker, full_version=full_version)
+        GnuCompiler.__init__(self, defines)
+        default_warn_args = ['-Wall']
+        if version_compare(self.version, self._INVALID_PCH_VERSION):
+            default_warn_args += ['-Winvalid-pch']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+                          'everything': (default_warn_args + ['-Wextra', '-Wpedantic'] +
+                                         self.supported_warn_args(gnu_common_warning_args) +
+                                         self.supported_warn_args(gnu_c_warning_args))}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CCompiler.get_options(self)
+        c_stds = ['c89', 'c99', 'c11']
+        g_stds = ['gnu89', 'gnu99', 'gnu11']
+        if version_compare(self.version, self._C18_VERSION):
+            c_stds += ['c17', 'c18']
+            g_stds += ['gnu17', 'gnu18']
+        if version_compare(self.version, self._C2X_VERSION):
+            c_stds += ['c2x']
+            g_stds += ['gnu2x']
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none'] + c_stds + g_stds
+        if self.info.is_windows() or self.info.is_cygwin():
+            opts.update({
+                key.evolve('winlibs'): coredata.UserArrayOption(
+                    'Standard Win libraries to link against',
+                    gnu_winlibs,
+                ),
+            })
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        std = options[OptionKey('std', lang=self.language, machine=self.for_machine)]
+        if std.value != 'none':
+            args.append('-std=' + std.value)
+        return args
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        if self.info.is_windows() or self.info.is_cygwin():
+            # without a typeddict mypy can't figure this out
+            libs: T.List[str] = options[OptionKey('winlibs', lang=self.language, machine=self.for_machine)].value.copy()
+            assert isinstance(libs, list)
+            for l in libs:
+                assert isinstance(l, str)
+            return libs
+        return []
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        return ['-fpch-preprocess', '-include', os.path.basename(header)]
+
+
+class PGICCompiler(PGICompiler, CCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker, full_version=full_version)
+        PGICompiler.__init__(self)
+
+
+class NvidiaHPC_CCompiler(PGICompiler, CCompiler):
+
+    id = 'nvidia_hpc'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker, full_version=full_version)
+        PGICompiler.__init__(self)
+
+
+class ElbrusCCompiler(ElbrusCompiler, CCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker, full_version=full_version)
+        ElbrusCompiler.__init__(self)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CCompiler.get_options(self)
+        stds = ['c89', 'c9x', 'c99', 'gnu89', 'gnu9x', 'gnu99']
+        stds += ['iso9899:1990', 'iso9899:199409', 'iso9899:1999']
+        if version_compare(self.version, '>=1.20.00'):
+            stds += ['c11', 'gnu11']
+        if version_compare(self.version, '>=1.21.00') and version_compare(self.version, '<1.22.00'):
+            stds += ['c90', 'c1x', 'gnu90', 'gnu1x', 'iso9899:2011']
+        if version_compare(self.version, '>=1.23.00'):
+            stds += ['c90', 'c1x', 'gnu90', 'gnu1x', 'iso9899:2011']
+        if version_compare(self.version, '>=1.26.00'):
+            stds += ['c17', 'c18', 'iso9899:2017', 'iso9899:2018', 'gnu17', 'gnu18']
+        opts[OptionKey('std', machine=self.for_machine, lang=self.language)].choices = ['none'] + stds
+        return opts
+
+    # Elbrus C compiler does not have lchmod, but there is only linker warning, not compiler error.
+    # So we should explicitly fail at this case.
+    def has_function(self, funcname: str, prefix: str, env: 'Environment', *,
+                     extra_args: T.Optional[T.List[str]] = None,
+                     dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        if funcname == 'lchmod':
+            return False, False
+        else:
+            return super().has_function(funcname, prefix, env,
+                                        extra_args=extra_args,
+                                        dependencies=dependencies)
+
+
+class IntelCCompiler(IntelGnuLikeCompiler, CCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker, full_version=full_version)
+        IntelGnuLikeCompiler.__init__(self)
+        self.lang_header = 'c-header'
+        default_warn_args = ['-Wall', '-w3']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args + ['-diag-disable:remark'],
+                          '2': default_warn_args + ['-Wextra', '-diag-disable:remark'],
+                          '3': default_warn_args + ['-Wextra', '-diag-disable:remark'],
+                          'everything': default_warn_args + ['-Wextra']}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CCompiler.get_options(self)
+        c_stds = ['c89', 'c99']
+        g_stds = ['gnu89', 'gnu99']
+        if version_compare(self.version, '>=16.0.0'):
+            c_stds += ['c11']
+        opts[OptionKey('std', machine=self.for_machine, lang=self.language)].choices = ['none'] + c_stds + g_stds
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        std = options[OptionKey('std', machine=self.for_machine, lang=self.language)]
+        if std.value != 'none':
+            args.append('-std=' + std.value)
+        return args
+
+
+class IntelLLVMCCompiler(ClangCCompiler):
+
+    id = 'intel-llvm'
+
+
+class VisualStudioLikeCCompilerMixin(CompilerMixinBase):
+
+    """Shared methods that apply to MSVC-like C compilers."""
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = super().get_options()
+        opts.update({
+            OptionKey('winlibs', machine=self.for_machine, lang=self.language): coredata.UserArrayOption(
+                'Windows libs to link against.',
+                msvc_winlibs,
+            ),
+        })
+        return opts
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        # need a TypeDict to make this work
+        key = OptionKey('winlibs', machine=self.for_machine, lang=self.language)
+        libs = options[key].value.copy()
+        assert isinstance(libs, list)
+        for l in libs:
+            assert isinstance(l, str)
+        return libs
+
+
+class VisualStudioCCompiler(MSVCCompiler, VisualStudioLikeCCompilerMixin, CCompiler):
+
+    _C11_VERSION = '>=19.28'
+    _C17_VERSION = '>=19.28'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo', target: str,
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker,
+                           full_version=full_version)
+        MSVCCompiler.__init__(self, target)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = super().get_options()
+        c_stds = ['c89', 'c99']
+        # Need to have these to be compatible with projects
+        # that set c_std to e.g. gnu99.
+        # https://github.com/mesonbuild/meson/issues/7611
+        g_stds = ['gnu89', 'gnu90', 'gnu9x', 'gnu99']
+        if version_compare(self.version, self._C11_VERSION):
+            c_stds += ['c11']
+            g_stds += ['gnu1x', 'gnu11']
+        if version_compare(self.version, self._C17_VERSION):
+            c_stds += ['c17', 'c18']
+            g_stds += ['gnu17', 'gnu18']
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none'] + c_stds + g_stds
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        std = options[OptionKey('std', machine=self.for_machine, lang=self.language)]
+        if std.value.startswith('gnu'):
+            mlog.log_once(
+                'cl.exe does not actually support gnu standards, and meson '
+                'will instead demote to the nearest ISO C standard. This '
+                'may cause compilation to fail.')
+        # As of MVSC 16.8, /std:c11 and /std:c17 are the only valid C standard options.
+        if std.value in {'c11', 'gnu1x', 'gnu11'}:
+            args.append('/std:c11')
+        elif std.value in {'c17', 'c18', 'gnu17', 'gnu18'}:
+            args.append('/std:c17')
+        return args
+
+
+class ClangClCCompiler(_ClangCStds, ClangClCompiler, VisualStudioLikeCCompilerMixin, CCompiler):
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo', target: str,
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, [], exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker,
+                           full_version=full_version)
+        ClangClCompiler.__init__(self, target)
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key].value
+        if std != "none":
+            return [f'/clang:-std={std}']
+        return []
+
+
+class IntelClCCompiler(IntelVisualStudioLikeCompiler, VisualStudioLikeCCompilerMixin, CCompiler):
+
+    """Intel "ICL" compiler abstraction."""
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo', target: str,
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, [], exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker,
+                           full_version=full_version)
+        IntelVisualStudioLikeCompiler.__init__(self, target)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = super().get_options()
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'c89', 'c99', 'c11']
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value == 'c89':
+            mlog.log_once("ICL doesn't explicitly implement c89, setting the standard to 'none', which is close.")
+        elif std.value != 'none':
+            args.append('/Qstd:' + std.value)
+        return args
+
+
+class IntelLLVMClCCompiler(IntelClCCompiler):
+
+    id = 'intel-llvm-cl'
+
+
+class ArmCCompiler(ArmCompiler, CCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker,
+                           full_version=full_version)
+        ArmCompiler.__init__(self)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'c89', 'c99', 'c11']
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            args.append('--' + std.value)
+        return args
+
+
+class CcrxCCompiler(CcrxCompiler, CCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker, full_version=full_version)
+        CcrxCompiler.__init__(self)
+
+    # Override CCompiler.get_always_args
+    def get_always_args(self) -> T.List[str]:
+        return ['-nologo']
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'c89', 'c99']
+        return opts
+
+    def get_no_stdinc_args(self) -> T.List[str]:
+        return []
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value == 'c89':
+            args.append('-lang=c')
+        elif std.value == 'c99':
+            args.append('-lang=c99')
+        return args
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return []
+
+    def get_no_optimization_args(self) -> T.List[str]:
+        return ['-optimize=0']
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [f'-output=obj={target}']
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['-change_message=error']
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if path == '':
+            path = '.'
+        return ['-include=' + path]
+
+
+class Xc16CCompiler(Xc16Compiler, CCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker, full_version=full_version)
+        Xc16Compiler.__init__(self)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'c89', 'c99', 'gnu89', 'gnu99']
+        return opts
+
+    def get_no_stdinc_args(self) -> T.List[str]:
+        return []
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            args.append('-ansi')
+            args.append('-std=' + std.value)
+        return args
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return []
+
+    def get_no_optimization_args(self) -> T.List[str]:
+        return ['-O0']
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [f'-o{target}']
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['-change_message=error']
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if path == '':
+            path = '.'
+        return ['-I' + path]
+
+class CompCertCCompiler(CompCertCompiler, CCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker, full_version=full_version)
+        CompCertCompiler.__init__(self)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'c89', 'c99']
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return []
+
+    def get_no_optimization_args(self) -> T.List[str]:
+        return ['-O0']
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [f'-o{target}']
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['-Werror']
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if path == '':
+            path = '.'
+        return ['-I' + path]
+
+class TICCompiler(TICompiler, CCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                           info, exe_wrapper, linker=linker, full_version=full_version)
+        TICompiler.__init__(self)
+
+    # Override CCompiler.get_always_args
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'c89', 'c99', 'c11']
+        return opts
+
+    def get_no_stdinc_args(self) -> T.List[str]:
+        return []
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            args.append('--' + std.value)
+        return args
+
+class C2000CCompiler(TICCompiler):
+    # Required for backwards compat with projects created before ti-cgt support existed
+    id = 'c2000'
diff --git a/mesonbuild/compilers/c_function_attributes.py b/mesonbuild/compilers/c_function_attributes.py
new file mode 100644
index 0000000..f663bfc
--- /dev/null
+++ b/mesonbuild/compilers/c_function_attributes.py
@@ -0,0 +1,141 @@
+# These functions are based on the following code:
+# https://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_gcc_func_attribute.m4,
+# which is licensed under the following terms:
+#
+#   Copyright (c) 2013 Gabriele Svelto <gabriele.svelto@gmail.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved.  This file is offered as-is, without any
+#   warranty.
+#
+
+C_FUNC_ATTRIBUTES = {
+    'alias': '''
+        int foo(void) { return 0; }
+        int bar(void) __attribute__((alias("foo")));''',
+    'aligned':
+        'int foo(void) __attribute__((aligned(32)));',
+    'alloc_size':
+        'void *foo(int a) __attribute__((alloc_size(1)));',
+    'always_inline':
+        'inline __attribute__((always_inline)) int foo(void) { return 0; }',
+    'artificial':
+        'inline __attribute__((artificial)) int foo(void) { return 0; }',
+    'cold':
+        'int foo(void) __attribute__((cold));',
+    'const':
+        'int foo(void) __attribute__((const));',
+    'constructor':
+        'int foo(void) __attribute__((constructor));',
+    'constructor_priority':
+        'int foo( void ) __attribute__((__constructor__(65535/2)));',
+    'deprecated':
+        'int foo(void) __attribute__((deprecated("")));',
+    'destructor':
+        'int foo(void) __attribute__((destructor));',
+    'dllexport':
+        '__declspec(dllexport) int foo(void) { return 0; }',
+    'dllimport':
+        '__declspec(dllimport) int foo(void);',
+    'error':
+        'int foo(void) __attribute__((error("")));',
+    'externally_visible':
+        'int foo(void) __attribute__((externally_visible));',
+    'fallthrough': '''
+        int foo( void ) {
+          switch (0) {
+            case 1: __attribute__((fallthrough));
+            case 2: break;
+          }
+          return 0;
+        };''',
+    'flatten':
+        'int foo(void) __attribute__((flatten));',
+    'format':
+        'int foo(const char * p, ...) __attribute__((format(printf, 1, 2)));',
+    'format_arg':
+        'char * foo(const char * p) __attribute__((format_arg(1)));',
+    'force_align_arg_pointer':
+        '__attribute__((force_align_arg_pointer)) int foo(void) { return 0; }',
+    'gnu_inline':
+        'inline __attribute__((gnu_inline)) int foo(void) { return 0; }',
+    'hot':
+        'int foo(void) __attribute__((hot));',
+    'ifunc':
+        ('int my_foo(void) { return 0; }'
+         'static int (*resolve_foo(void))(void) { return my_foo; }'
+         'int foo(void) __attribute__((ifunc("resolve_foo")));'),
+    'leaf':
+        '__attribute__((leaf)) int foo(void) { return 0; }',
+    'malloc':
+        'int *foo(void) __attribute__((malloc));',
+    'noclone':
+        'int foo(void) __attribute__((noclone));',
+    'noinline':
+        '__attribute__((noinline)) int foo(void) { return 0; }',
+    'nonnull':
+        'int foo(char * p) __attribute__((nonnull(1)));',
+    'noreturn':
+        'int foo(void) __attribute__((noreturn));',
+    'nothrow':
+        'int foo(void) __attribute__((nothrow));',
+    'optimize':
+        '__attribute__((optimize(3))) int foo(void) { return 0; }',
+    'packed':
+        'struct __attribute__((packed)) foo { int bar; };',
+    'pure':
+        'int foo(void) __attribute__((pure));',
+    'returns_nonnull':
+        'int *foo(void) __attribute__((returns_nonnull));',
+    'section': '''
+        #if defined(__APPLE__) && defined(__MACH__)
+            extern int foo __attribute__((section("__BAR,__bar")));
+        #else
+            extern int foo __attribute__((section(".bar")));
+        #endif''',
+    'sentinel':
+        'int foo(const char *bar, ...) __attribute__((sentinel));',
+    'unused':
+        'int foo(void) __attribute__((unused));',
+    'used':
+        'int foo(void) __attribute__((used));',
+    'visibility': '''
+        int foo_def(void) __attribute__((visibility("default")));
+        int foo_hid(void) __attribute__((visibility("hidden")));
+        int foo_int(void) __attribute__((visibility("internal")));''',
+    'visibility:default':
+        'int foo(void) __attribute__((visibility("default")));',
+    'visibility:hidden':
+        'int foo(void) __attribute__((visibility("hidden")));',
+    'visibility:internal':
+        'int foo(void) __attribute__((visibility("internal")));',
+    'visibility:protected':
+        'int foo(void) __attribute__((visibility("protected")));',
+    'warning':
+        'int foo(void) __attribute__((warning("")));',
+    'warn_unused_result':
+        'int foo(void) __attribute__((warn_unused_result));',
+    'weak':
+        'int foo(void) __attribute__((weak));',
+    'weakref': '''
+        static int foo(void) { return 0; }
+        static int var(void) __attribute__((weakref("foo")));''',
+    'retain': '__attribute__((retain)) int x;',
+}
+
+CXX_FUNC_ATTRIBUTES = {
+    # Alias must be applied to the mangled name in C++
+    'alias':
+        ('extern "C" {'
+         'int foo(void) { return 0; }'
+         '}'
+         'int bar(void) __attribute__((alias("foo")));'
+         ),
+    'ifunc':
+        ('extern "C" {'
+         'int my_foo(void) { return 0; }'
+         'static int (*resolve_foo(void))(void) { return my_foo; }'
+         '}'
+         'int foo(void) __attribute__((ifunc("resolve_foo")));'),
+}
diff --git a/mesonbuild/compilers/compilers.py b/mesonbuild/compilers/compilers.py
new file mode 100644
index 0000000..c5a51cb
--- /dev/null
+++ b/mesonbuild/compilers/compilers.py
@@ -0,0 +1,1342 @@
+# Copyright 2012-2022 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import abc
+import contextlib, os.path, re
+import enum
+import itertools
+import typing as T
+from functools import lru_cache
+
+from .. import coredata
+from .. import mlog
+from .. import mesonlib
+from ..mesonlib import (
+    HoldableObject,
+    EnvironmentException, MesonException,
+    Popen_safe, LibType, TemporaryDirectoryWinProof, OptionKey,
+)
+
+from ..arglist import CompilerArgs
+
+if T.TYPE_CHECKING:
+    from ..build import BuildTarget
+    from ..coredata import MutableKeyedOptionDictType, KeyedOptionDictType
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..linkers import DynamicLinker, RSPFileSyntax
+    from ..mesonlib import MachineChoice
+    from ..dependencies import Dependency
+
+    CompilerType = T.TypeVar('CompilerType', bound='Compiler')
+    _T = T.TypeVar('_T')
+
+"""This file contains the data files of all compilers Meson knows
+about. To support a new compiler, add its information below.
+Also add corresponding autodetection code in environment.py."""
+
+header_suffixes = {'h', 'hh', 'hpp', 'hxx', 'H', 'ipp', 'moc', 'vapi', 'di'}
+obj_suffixes = {'o', 'obj', 'res'}
+# To the emscripten compiler, .js files are libraries
+lib_suffixes = {'a', 'lib', 'dll', 'dll.a', 'dylib', 'so', 'js'}
+# Mapping of language to suffixes of files that should always be in that language
+# This means we can't include .h headers here since they could be C, C++, ObjC, etc.
+# First suffix is the language's default.
+lang_suffixes = {
+    'c': ('c',),
+    'cpp': ('cpp', 'cc', 'cxx', 'c++', 'hh', 'hpp', 'ipp', 'hxx', 'ino', 'ixx', 'C'),
+    'cuda': ('cu',),
+    # f90, f95, f03, f08 are for free-form fortran ('f90' recommended)
+    # f, for, ftn, fpp are for fixed-form fortran ('f' or 'for' recommended)
+    'fortran': ('f90', 'f95', 'f03', 'f08', 'f', 'for', 'ftn', 'fpp'),
+    'd': ('d', 'di'),
+    'objc': ('m',),
+    'objcpp': ('mm',),
+    'rust': ('rs',),
+    'vala': ('vala', 'vapi', 'gs'),
+    'cs': ('cs',),
+    'swift': ('swift',),
+    'java': ('java',),
+    'cython': ('pyx', ),
+    'nasm': ('asm',),
+    'masm': ('masm',),
+}
+all_languages = lang_suffixes.keys()
+c_cpp_suffixes = {'h'}
+cpp_suffixes = set(lang_suffixes['cpp']) | c_cpp_suffixes
+c_suffixes = set(lang_suffixes['c']) | c_cpp_suffixes
+assembler_suffixes = {'s', 'S', 'asm', 'masm'}
+llvm_ir_suffixes = {'ll'}
+all_suffixes = set(itertools.chain(*lang_suffixes.values(), assembler_suffixes, llvm_ir_suffixes, c_cpp_suffixes))
+source_suffixes = all_suffixes - header_suffixes
+# List of languages that by default consume and output libraries following the
+# C ABI; these can generally be used interchangeably
+# This must be sorted, see sort_clink().
+clib_langs = ('objcpp', 'cpp', 'objc', 'c', 'fortran')
+# List of languages that can be linked with C code directly by the linker
+# used in build.py:process_compilers() and build.py:get_dynamic_linker()
+# This must be sorted, see sort_clink().
+clink_langs = ('d', 'cuda') + clib_langs
+
+SUFFIX_TO_LANG = dict(itertools.chain(*(
+    [(suffix, lang) for suffix in v] for lang, v in lang_suffixes.items()))) # type: T.Dict[str, str]
+
+# Languages that should use LDFLAGS arguments when linking.
+LANGUAGES_USING_LDFLAGS = {'objcpp', 'cpp', 'objc', 'c', 'fortran', 'd', 'cuda'}  # type: T.Set[str]
+# Languages that should use CPPFLAGS arguments when linking.
+LANGUAGES_USING_CPPFLAGS = {'c', 'cpp', 'objc', 'objcpp'}  # type: T.Set[str]
+soregex = re.compile(r'.*\.so(\.[0-9]+)?(\.[0-9]+)?(\.[0-9]+)?$')
+
+# Environment variables that each lang uses.
+CFLAGS_MAPPING: T.Mapping[str, str] = {
+    'c': 'CFLAGS',
+    'cpp': 'CXXFLAGS',
+    'cuda': 'CUFLAGS',
+    'objc': 'OBJCFLAGS',
+    'objcpp': 'OBJCXXFLAGS',
+    'fortran': 'FFLAGS',
+    'd': 'DFLAGS',
+    'vala': 'VALAFLAGS',
+    'rust': 'RUSTFLAGS',
+    'cython': 'CYTHONFLAGS',
+    'cs': 'CSFLAGS', # This one might not be standard.
+}
+
+# All these are only for C-linkable languages; see `clink_langs` above.
+
+def sort_clink(lang: str) -> int:
+    '''
+    Sorting function to sort the list of languages according to
+    reversed(compilers.clink_langs) and append the unknown langs in the end.
+    The purpose is to prefer C over C++ for files that can be compiled by
+    both such as assembly, C, etc. Also applies to ObjC, ObjC++, etc.
+    '''
+    if lang not in clink_langs:
+        return 1
+    return -clink_langs.index(lang)
+
+def is_header(fname: 'mesonlib.FileOrString') -> bool:
+    if isinstance(fname, mesonlib.File):
+        fname = fname.fname
+    suffix = fname.split('.')[-1]
+    return suffix in header_suffixes
+
+def is_source(fname: 'mesonlib.FileOrString') -> bool:
+    if isinstance(fname, mesonlib.File):
+        fname = fname.fname
+    suffix = fname.split('.')[-1].lower()
+    return suffix in source_suffixes
+
+def is_assembly(fname: 'mesonlib.FileOrString') -> bool:
+    if isinstance(fname, mesonlib.File):
+        fname = fname.fname
+    suffix = fname.split('.')[-1]
+    return suffix in assembler_suffixes
+
+def is_llvm_ir(fname: 'mesonlib.FileOrString') -> bool:
+    if isinstance(fname, mesonlib.File):
+        fname = fname.fname
+    suffix = fname.split('.')[-1]
+    return suffix in llvm_ir_suffixes
+
+@lru_cache(maxsize=None)
+def cached_by_name(fname: 'mesonlib.FileOrString') -> bool:
+    suffix = fname.split('.')[-1]
+    return suffix in obj_suffixes
+
+def is_object(fname: 'mesonlib.FileOrString') -> bool:
+    if isinstance(fname, mesonlib.File):
+        fname = fname.fname
+    return cached_by_name(fname)
+
+def is_library(fname: 'mesonlib.FileOrString') -> bool:
+    if isinstance(fname, mesonlib.File):
+        fname = fname.fname
+
+    if soregex.match(fname):
+        return True
+
+    suffix = fname.split('.')[-1]
+    return suffix in lib_suffixes
+
+def is_known_suffix(fname: 'mesonlib.FileOrString') -> bool:
+    if isinstance(fname, mesonlib.File):
+        fname = fname.fname
+    suffix = fname.split('.')[-1]
+
+    return suffix in all_suffixes
+
+
+class CompileCheckMode(enum.Enum):
+
+    PREPROCESS = 'preprocess'
+    COMPILE = 'compile'
+    LINK = 'link'
+
+
+cuda_buildtype_args = {'plain': [],
+                       'debug': ['-g', '-G'],
+                       'debugoptimized': ['-g', '-lineinfo'],
+                       'release': [],
+                       'minsize': [],
+                       'custom': [],
+                       }  # type: T.Dict[str, T.List[str]]
+java_buildtype_args = {'plain': [],
+                       'debug': ['-g'],
+                       'debugoptimized': ['-g'],
+                       'release': [],
+                       'minsize': [],
+                       'custom': [],
+                       }  # type: T.Dict[str, T.List[str]]
+
+rust_buildtype_args = {'plain': [],
+                       'debug': [],
+                       'debugoptimized': [],
+                       'release': [],
+                       'minsize': [],
+                       'custom': [],
+                       }  # type: T.Dict[str, T.List[str]]
+
+d_gdc_buildtype_args = {'plain': [],
+                        'debug': [],
+                        'debugoptimized': ['-finline-functions'],
+                        'release': ['-finline-functions'],
+                        'minsize': [],
+                        'custom': [],
+                        }  # type: T.Dict[str, T.List[str]]
+
+d_ldc_buildtype_args = {'plain': [],
+                        'debug': [],
+                        'debugoptimized': ['-enable-inlining', '-Hkeep-all-bodies'],
+                        'release': ['-enable-inlining', '-Hkeep-all-bodies'],
+                        'minsize': [],
+                        'custom': [],
+                        }  # type: T.Dict[str, T.List[str]]
+
+d_dmd_buildtype_args = {'plain': [],
+                        'debug': [],
+                        'debugoptimized': ['-inline'],
+                        'release': ['-inline'],
+                        'minsize': [],
+                        'custom': [],
+                        }  # type: T.Dict[str, T.List[str]]
+
+mono_buildtype_args = {'plain': [],
+                       'debug': [],
+                       'debugoptimized': ['-optimize+'],
+                       'release': ['-optimize+'],
+                       'minsize': [],
+                       'custom': [],
+                       }  # type: T.Dict[str, T.List[str]]
+
+swift_buildtype_args = {'plain': [],
+                        'debug': [],
+                        'debugoptimized': [],
+                        'release': [],
+                        'minsize': [],
+                        'custom': [],
+                        }  # type: T.Dict[str, T.List[str]]
+
+gnu_winlibs = ['-lkernel32', '-luser32', '-lgdi32', '-lwinspool', '-lshell32',
+               '-lole32', '-loleaut32', '-luuid', '-lcomdlg32', '-ladvapi32']  # type: T.List[str]
+
+msvc_winlibs = ['kernel32.lib', 'user32.lib', 'gdi32.lib',
+                'winspool.lib', 'shell32.lib', 'ole32.lib', 'oleaut32.lib',
+                'uuid.lib', 'comdlg32.lib', 'advapi32.lib']  # type: T.List[str]
+
+clike_optimization_args = {'plain': [],
+                           '0': [],
+                           'g': [],
+                           '1': ['-O1'],
+                           '2': ['-O2'],
+                           '3': ['-O3'],
+                           's': ['-Os'],
+                           }  # type: T.Dict[str, T.List[str]]
+
+cuda_optimization_args = {'plain': [],
+                          '0': [],
+                          'g': ['-O0'],
+                          '1': ['-O1'],
+                          '2': ['-O2'],
+                          '3': ['-O3'],
+                          's': ['-O3']
+                          }  # type: T.Dict[str, T.List[str]]
+
+cuda_debug_args = {False: [],
+                   True: ['-g']}  # type: T.Dict[bool, T.List[str]]
+
+clike_debug_args = {False: [],
+                    True: ['-g']}  # type: T.Dict[bool, T.List[str]]
+
+base_options: 'KeyedOptionDictType' = {
+    OptionKey('b_pch'): coredata.UserBooleanOption('Use precompiled headers', True),
+    OptionKey('b_lto'): coredata.UserBooleanOption('Use link time optimization', False),
+    OptionKey('b_lto_threads'): coredata.UserIntegerOption('Use multiple threads for Link Time Optimization', (None, None, 0)),
+    OptionKey('b_lto_mode'): coredata.UserComboOption('Select between different LTO modes.',
+                                                      ['default', 'thin'],
+                                                      'default'),
+    OptionKey('b_thinlto_cache'): coredata.UserBooleanOption('Use LLVM ThinLTO caching for faster incremental builds', False),
+    OptionKey('b_thinlto_cache_dir'): coredata.UserStringOption('Directory to store ThinLTO cache objects', ''),
+    OptionKey('b_sanitize'): coredata.UserComboOption('Code sanitizer to use',
+                                                      ['none', 'address', 'thread', 'undefined', 'memory', 'leak', 'address,undefined'],
+                                                      'none'),
+    OptionKey('b_lundef'): coredata.UserBooleanOption('Use -Wl,--no-undefined when linking', True),
+    OptionKey('b_asneeded'): coredata.UserBooleanOption('Use -Wl,--as-needed when linking', True),
+    OptionKey('b_pgo'): coredata.UserComboOption('Use profile guided optimization',
+                                                 ['off', 'generate', 'use'],
+                                                 'off'),
+    OptionKey('b_coverage'): coredata.UserBooleanOption('Enable coverage tracking.', False),
+    OptionKey('b_colorout'): coredata.UserComboOption('Use colored output',
+                                                      ['auto', 'always', 'never'],
+                                                      'always'),
+    OptionKey('b_ndebug'): coredata.UserComboOption('Disable asserts', ['true', 'false', 'if-release'], 'false'),
+    OptionKey('b_staticpic'): coredata.UserBooleanOption('Build static libraries as position independent', True),
+    OptionKey('b_pie'): coredata.UserBooleanOption('Build executables as position independent', False),
+    OptionKey('b_bitcode'): coredata.UserBooleanOption('Generate and embed bitcode (only macOS/iOS/tvOS)', False),
+    OptionKey('b_vscrt'): coredata.UserComboOption('VS run-time library type to use.',
+                                                   ['none', 'md', 'mdd', 'mt', 'mtd', 'from_buildtype', 'static_from_buildtype'],
+                                                   'from_buildtype'),
+}
+
+def option_enabled(boptions: T.Set[OptionKey], options: 'KeyedOptionDictType',
+                   option: OptionKey) -> bool:
+    try:
+        if option not in boptions:
+            return False
+        ret = options[option].value
+        assert isinstance(ret, bool), 'must return bool'  # could also be str
+        return ret
+    except KeyError:
+        return False
+
+
+def get_option_value(options: 'KeyedOptionDictType', opt: OptionKey, fallback: '_T') -> '_T':
+    """Get the value of an option, or the fallback value."""
+    try:
+        v: '_T' = options[opt].value
+    except KeyError:
+        return fallback
+
+    assert isinstance(v, type(fallback)), f'Should have {type(fallback)!r} but was {type(v)!r}'
+    # Mypy doesn't understand that the above assert ensures that v is type _T
+    return v
+
+
+def get_base_compile_args(options: 'KeyedOptionDictType', compiler: 'Compiler') -> T.List[str]:
+    args = []  # type T.List[str]
+    try:
+        if options[OptionKey('b_lto')].value:
+            args.extend(compiler.get_lto_compile_args(
+                threads=get_option_value(options, OptionKey('b_lto_threads'), 0),
+                mode=get_option_value(options, OptionKey('b_lto_mode'), 'default')))
+    except KeyError:
+        pass
+    try:
+        args += compiler.get_colorout_args(options[OptionKey('b_colorout')].value)
+    except KeyError:
+        pass
+    try:
+        args += compiler.sanitizer_compile_args(options[OptionKey('b_sanitize')].value)
+    except KeyError:
+        pass
+    try:
+        pgo_val = options[OptionKey('b_pgo')].value
+        if pgo_val == 'generate':
+            args.extend(compiler.get_profile_generate_args())
+        elif pgo_val == 'use':
+            args.extend(compiler.get_profile_use_args())
+    except KeyError:
+        pass
+    try:
+        if options[OptionKey('b_coverage')].value:
+            args += compiler.get_coverage_args()
+    except KeyError:
+        pass
+    try:
+        if (options[OptionKey('b_ndebug')].value == 'true' or
+                (options[OptionKey('b_ndebug')].value == 'if-release' and
+                 options[OptionKey('buildtype')].value in {'release', 'plain'})):
+            args += compiler.get_disable_assert_args()
+    except KeyError:
+        pass
+    # This does not need a try...except
+    if option_enabled(compiler.base_options, options, OptionKey('b_bitcode')):
+        args.append('-fembed-bitcode')
+    try:
+        crt_val = options[OptionKey('b_vscrt')].value
+        buildtype = options[OptionKey('buildtype')].value
+        try:
+            args += compiler.get_crt_compile_args(crt_val, buildtype)
+        except AttributeError:
+            pass
+    except KeyError:
+        pass
+    return args
+
+def get_base_link_args(options: 'KeyedOptionDictType', linker: 'Compiler',
+                       is_shared_module: bool, build_dir: str) -> T.List[str]:
+    args = []  # type: T.List[str]
+    try:
+        if options[OptionKey('b_lto')].value:
+            thinlto_cache_dir = None
+            if get_option_value(options, OptionKey('b_thinlto_cache'), False):
+                thinlto_cache_dir = get_option_value(options, OptionKey('b_thinlto_cache_dir'), '')
+                if thinlto_cache_dir == '':
+                    thinlto_cache_dir = os.path.join(build_dir, 'meson-private', 'thinlto-cache')
+            args.extend(linker.get_lto_link_args(
+                threads=get_option_value(options, OptionKey('b_lto_threads'), 0),
+                mode=get_option_value(options, OptionKey('b_lto_mode'), 'default'),
+                thinlto_cache_dir=thinlto_cache_dir))
+    except KeyError:
+        pass
+    try:
+        args += linker.sanitizer_link_args(options[OptionKey('b_sanitize')].value)
+    except KeyError:
+        pass
+    try:
+        pgo_val = options[OptionKey('b_pgo')].value
+        if pgo_val == 'generate':
+            args.extend(linker.get_profile_generate_args())
+        elif pgo_val == 'use':
+            args.extend(linker.get_profile_use_args())
+    except KeyError:
+        pass
+    try:
+        if options[OptionKey('b_coverage')].value:
+            args += linker.get_coverage_link_args()
+    except KeyError:
+        pass
+
+    as_needed = option_enabled(linker.base_options, options, OptionKey('b_asneeded'))
+    bitcode = option_enabled(linker.base_options, options, OptionKey('b_bitcode'))
+    # Shared modules cannot be built with bitcode_bundle because
+    # -bitcode_bundle is incompatible with -undefined and -bundle
+    if bitcode and not is_shared_module:
+        args.extend(linker.bitcode_args())
+    elif as_needed:
+        # -Wl,-dead_strip_dylibs is incompatible with bitcode
+        args.extend(linker.get_asneeded_args())
+
+    # Apple's ld (the only one that supports bitcode) does not like -undefined
+    # arguments or -headerpad_max_install_names when bitcode is enabled
+    if not bitcode:
+        args.extend(linker.headerpad_args())
+        if (not is_shared_module and
+                option_enabled(linker.base_options, options, OptionKey('b_lundef'))):
+            args.extend(linker.no_undefined_link_args())
+        else:
+            args.extend(linker.get_allow_undefined_link_args())
+
+    try:
+        crt_val = options[OptionKey('b_vscrt')].value
+        buildtype = options[OptionKey('buildtype')].value
+        try:
+            args += linker.get_crt_link_args(crt_val, buildtype)
+        except AttributeError:
+            pass
+    except KeyError:
+        pass
+    return args
+
+
+class CrossNoRunException(MesonException):
+    pass
+
+class RunResult(HoldableObject):
+    def __init__(self, compiled: bool, returncode: int = 999,
+                 stdout: str = 'UNDEFINED', stderr: str = 'UNDEFINED'):
+        self.compiled = compiled
+        self.returncode = returncode
+        self.stdout = stdout
+        self.stderr = stderr
+
+
+class CompileResult(HoldableObject):
+
+    """The result of Compiler.compiles (and friends)."""
+
+    def __init__(self, stdo: T.Optional[str] = None, stde: T.Optional[str] = None,
+                 command: T.Optional[T.List[str]] = None,
+                 returncode: int = 999,
+                 input_name: T.Optional[str] = None,
+                 output_name: T.Optional[str] = None,
+                 cached: bool = False):
+        self.stdout = stdo
+        self.stderr = stde
+        self.input_name = input_name
+        self.output_name = output_name
+        self.command = command or []
+        self.cached = cached
+        self.returncode = returncode
+
+
+class Compiler(HoldableObject, metaclass=abc.ABCMeta):
+    # Libraries to ignore in find_library() since they are provided by the
+    # compiler or the C library. Currently only used for MSVC.
+    ignore_libs = []  # type: T.List[str]
+    # Libraries that are internal compiler implementations, and must not be
+    # manually searched.
+    internal_libs = []  # type: T.List[str]
+
+    LINKER_PREFIX = None  # type: T.Union[None, str, T.List[str]]
+    INVOKES_LINKER = True
+
+    language: str
+    id: str
+    warn_args: T.Dict[str, T.List[str]]
+    mode: str = 'COMPILER'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str,
+                 for_machine: MachineChoice, info: 'MachineInfo',
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None, is_cross: bool = False):
+        self.exelist = ccache + exelist
+        self.exelist_no_ccache = exelist
+        # In case it's been overridden by a child class already
+        if not hasattr(self, 'file_suffixes'):
+            self.file_suffixes = lang_suffixes[self.language]
+        if not hasattr(self, 'can_compile_suffixes'):
+            self.can_compile_suffixes = set(self.file_suffixes)
+        self.default_suffix = self.file_suffixes[0]
+        self.version = version
+        self.full_version = full_version
+        self.for_machine = for_machine
+        self.base_options: T.Set[OptionKey] = set()
+        self.linker = linker
+        self.info = info
+        self.is_cross = is_cross
+        self.modes: T.List[Compiler] = []
+
+    def __repr__(self) -> str:
+        repr_str = "<{0}: v{1} `{2}`>"
+        return repr_str.format(self.__class__.__name__, self.version,
+                               ' '.join(self.exelist))
+
+    @lru_cache(maxsize=None)
+    def can_compile(self, src: 'mesonlib.FileOrString') -> bool:
+        if isinstance(src, mesonlib.File):
+            src = src.fname
+        suffix = os.path.splitext(src)[1]
+        if suffix != '.C':
+            suffix = suffix.lower()
+        return bool(suffix) and suffix[1:] in self.can_compile_suffixes
+
+    def get_id(self) -> str:
+        return self.id
+
+    def get_modes(self) -> T.List[Compiler]:
+        return self.modes
+
+    def get_linker_id(self) -> str:
+        # There is not guarantee that we have a dynamic linker instance, as
+        # some languages don't have separate linkers and compilers. In those
+        # cases return the compiler id
+        try:
+            return self.linker.id
+        except AttributeError:
+            return self.id
+
+    def get_version_string(self) -> str:
+        details = [self.id, self.version]
+        if self.full_version:
+            details += ['"%s"' % (self.full_version)]
+        return '(%s)' % (' '.join(details))
+
+    def get_language(self) -> str:
+        return self.language
+
+    @classmethod
+    def get_display_language(cls) -> str:
+        return cls.language.capitalize()
+
+    def get_default_suffix(self) -> str:
+        return self.default_suffix
+
+    def get_define(self, dname: str, prefix: str, env: 'Environment',
+                   extra_args: T.Union[T.List[str], T.Callable[[CompileCheckMode], T.List[str]]],
+                   dependencies: T.List['Dependency'],
+                   disable_cache: bool = False) -> T.Tuple[str, bool]:
+        raise EnvironmentException('%s does not support get_define ' % self.get_id())
+
+    def compute_int(self, expression: str, low: T.Optional[int], high: T.Optional[int],
+                    guess: T.Optional[int], prefix: str, env: 'Environment', *,
+                    extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]],
+                    dependencies: T.Optional[T.List['Dependency']]) -> int:
+        raise EnvironmentException('%s does not support compute_int ' % self.get_id())
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        raise EnvironmentException('%s does not support compute_parameters_with_absolute_paths ' % self.get_id())
+
+    def has_members(self, typename: str, membernames: T.List[str],
+                    prefix: str, env: 'Environment', *,
+                    extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+                    dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        raise EnvironmentException('%s does not support has_member(s) ' % self.get_id())
+
+    def has_type(self, typename: str, prefix: str, env: 'Environment',
+                 extra_args: T.Union[T.List[str], T.Callable[[CompileCheckMode], T.List[str]]], *,
+                 dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        raise EnvironmentException('%s does not support has_type ' % self.get_id())
+
+    def symbols_have_underscore_prefix(self, env: 'Environment') -> bool:
+        raise EnvironmentException('%s does not support symbols_have_underscore_prefix ' % self.get_id())
+
+    def get_exelist(self, ccache: bool = True) -> T.List[str]:
+        return self.exelist.copy() if ccache else self.exelist_no_ccache.copy()
+
+    def get_linker_exelist(self) -> T.List[str]:
+        return self.linker.get_exelist()
+
+    @abc.abstractmethod
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        pass
+
+    def get_linker_output_args(self, outputname: str) -> T.List[str]:
+        return self.linker.get_output_args(outputname)
+
+    def get_linker_search_args(self, dirname: str) -> T.List[str]:
+        return self.linker.get_search_args(dirname)
+
+    def get_builtin_define(self, define: str) -> T.Optional[str]:
+        raise EnvironmentException('%s does not support get_builtin_define.' % self.id)
+
+    def has_builtin_define(self, define: str) -> bool:
+        raise EnvironmentException('%s does not support has_builtin_define.' % self.id)
+
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+    def can_linker_accept_rsp(self) -> bool:
+        """
+        Determines whether the linker can accept arguments using the @rsp syntax.
+        """
+        return self.linker.get_accepts_rsp()
+
+    def get_linker_always_args(self) -> T.List[str]:
+        return self.linker.get_always_args()
+
+    def get_linker_lib_prefix(self) -> str:
+        return self.linker.get_lib_prefix()
+
+    def gen_import_library_args(self, implibname: str) -> T.List[str]:
+        """
+        Used only on Windows for libraries that need an import library.
+        This currently means C, C++, Fortran.
+        """
+        return []
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        return {}
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return []
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return self.linker.get_option_args(options)
+
+    def check_header(self, hname: str, prefix: str, env: 'Environment', *,
+                     extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+                     dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        """Check that header is usable.
+
+        Returns a two item tuple of bools. The first bool is whether the
+        check succeeded, the second is whether the result was cached (True)
+        or run fresh (False).
+        """
+        raise EnvironmentException('Language %s does not support header checks.' % self.get_display_language())
+
+    def has_header(self, hname: str, prefix: str, env: 'Environment', *,
+                   extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+                   dependencies: T.Optional[T.List['Dependency']] = None,
+                   disable_cache: bool = False) -> T.Tuple[bool, bool]:
+        """Check that header is exists.
+
+        This check will return true if the file exists, even if it contains:
+
+        ```c
+        # error "You thought you could use this, LOLZ!"
+        ```
+
+        Use check_header if your header only works in some cases.
+
+        Returns a two item tuple of bools. The first bool is whether the
+        check succeeded, the second is whether the result was cached (True)
+        or run fresh (False).
+        """
+        raise EnvironmentException('Language %s does not support header checks.' % self.get_display_language())
+
+    def has_header_symbol(self, hname: str, symbol: str, prefix: str,
+                          env: 'Environment', *,
+                          extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+                          dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        raise EnvironmentException('Language %s does not support header symbol checks.' % self.get_display_language())
+
+    def run(self, code: 'mesonlib.FileOrString', env: 'Environment', *,
+            extra_args: T.Union[T.List[str], T.Callable[[CompileCheckMode], T.List[str]], None] = None,
+            dependencies: T.Optional[T.List['Dependency']] = None) -> RunResult:
+        raise EnvironmentException('Language %s does not support run checks.' % self.get_display_language())
+
+    def sizeof(self, typename: str, prefix: str, env: 'Environment', *,
+               extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+               dependencies: T.Optional[T.List['Dependency']] = None) -> int:
+        raise EnvironmentException('Language %s does not support sizeof checks.' % self.get_display_language())
+
+    def alignment(self, typename: str, prefix: str, env: 'Environment', *,
+                  extra_args: T.Optional[T.List[str]] = None,
+                  dependencies: T.Optional[T.List['Dependency']] = None) -> int:
+        raise EnvironmentException('Language %s does not support alignment checks.' % self.get_display_language())
+
+    def has_function(self, funcname: str, prefix: str, env: 'Environment', *,
+                     extra_args: T.Optional[T.List[str]] = None,
+                     dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        """See if a function exists.
+
+        Returns a two item tuple of bools. The first bool is whether the
+        check succeeded, the second is whether the result was cached (True)
+        or run fresh (False).
+        """
+        raise EnvironmentException('Language %s does not support function checks.' % self.get_display_language())
+
+    @classmethod
+    def _unix_args_to_native(cls, args: T.List[str], info: MachineInfo) -> T.List[str]:
+        "Always returns a copy that can be independently mutated"
+        return args.copy()
+
+    def unix_args_to_native(self, args: T.List[str]) -> T.List[str]:
+        return self._unix_args_to_native(args, self.info)
+
+    @classmethod
+    def native_args_to_unix(cls, args: T.List[str]) -> T.List[str]:
+        "Always returns a copy that can be independently mutated"
+        return args.copy()
+
+    def find_library(self, libname: str, env: 'Environment', extra_dirs: T.List[str],
+                     libtype: LibType = LibType.PREFER_SHARED) -> T.Optional[T.List[str]]:
+        raise EnvironmentException(f'Language {self.get_display_language()} does not support library finding.')
+
+    def get_library_naming(self, env: 'Environment', libtype: LibType,
+                           strict: bool = False) -> T.Optional[T.Tuple[str, ...]]:
+        raise EnvironmentException(
+            'Language {} does not support get_library_naming.'.format(
+                self.get_display_language()))
+
+    def get_program_dirs(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def has_multi_arguments(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]:
+        raise EnvironmentException(
+            'Language {} does not support has_multi_arguments.'.format(
+                self.get_display_language()))
+
+    def has_multi_link_arguments(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]:
+        return self.linker.has_multi_arguments(args, env)
+
+    def _get_compile_output(self, dirname: str, mode: str) -> str:
+        # TODO: mode should really be an enum
+        # In pre-processor mode, the output is sent to stdout and discarded
+        if mode == 'preprocess':
+            return None
+        # Extension only matters if running results; '.exe' is
+        # guaranteed to be executable on every platform.
+        if mode == 'link':
+            suffix = 'exe'
+        else:
+            suffix = 'obj'
+        return os.path.join(dirname, 'output.' + suffix)
+
+    def get_compiler_args_for_mode(self, mode: CompileCheckMode) -> T.List[str]:
+        # TODO: mode should really be an enum
+        args = []  # type: T.List[str]
+        args += self.get_always_args()
+        if mode is CompileCheckMode.COMPILE:
+            args += self.get_compile_only_args()
+        elif mode is CompileCheckMode.PREPROCESS:
+            args += self.get_preprocess_only_args()
+        else:
+            assert mode is CompileCheckMode.LINK
+        return args
+
+    def compiler_args(self, args: T.Optional[T.Iterable[str]] = None) -> CompilerArgs:
+        """Return an appropriate CompilerArgs instance for this class."""
+        return CompilerArgs(self, args)
+
+    @contextlib.contextmanager
+    def compile(self, code: 'mesonlib.FileOrString',
+                extra_args: T.Union[None, CompilerArgs, T.List[str]] = None,
+                *, mode: str = 'link', want_output: bool = False,
+                temp_dir: T.Optional[str] = None) -> T.Iterator[T.Optional[CompileResult]]:
+        # TODO: there isn't really any reason for this to be a contextmanager
+        if extra_args is None:
+            extra_args = []
+
+        with TemporaryDirectoryWinProof(dir=temp_dir) as tmpdirname:
+            no_ccache = False
+            if isinstance(code, str):
+                srcname = os.path.join(tmpdirname,
+                                       'testfile.' + self.default_suffix)
+                with open(srcname, 'w', encoding='utf-8') as ofile:
+                    ofile.write(code)
+                # ccache would result in a cache miss
+                no_ccache = True
+                contents = code
+            else:
+                srcname = code.fname
+                if not is_object(code.fname):
+                    with open(code.fname, encoding='utf-8') as f:
+                        contents = f.read()
+                else:
+                    contents = '<binary>'
+
+            # Construct the compiler command-line
+            commands = self.compiler_args()
+            commands.append(srcname)
+
+            # Preprocess mode outputs to stdout, so no output args
+            output = self._get_compile_output(tmpdirname, mode)
+            if mode != 'preprocess':
+                commands += self.get_output_args(output)
+            commands.extend(self.get_compiler_args_for_mode(CompileCheckMode(mode)))
+
+            # extra_args must be last because it could contain '/link' to
+            # pass args to VisualStudio's linker. In that case everything
+            # in the command line after '/link' is given to the linker.
+            if extra_args:
+                commands += extra_args
+            # Generate full command-line with the exelist
+            command_list = self.get_exelist(ccache=not no_ccache) + commands.to_native()
+            mlog.debug('Running compile:')
+            mlog.debug('Working directory: ', tmpdirname)
+            mlog.debug('Command line: ', ' '.join(command_list), '\n')
+            mlog.debug('Code:\n', contents)
+            os_env = os.environ.copy()
+            os_env['LC_ALL'] = 'C'
+            if no_ccache:
+                os_env['CCACHE_DISABLE'] = '1'
+            p, stdo, stde = Popen_safe(command_list, cwd=tmpdirname, env=os_env)
+            mlog.debug('Compiler stdout:\n', stdo)
+            mlog.debug('Compiler stderr:\n', stde)
+
+            result = CompileResult(stdo, stde, command_list, p.returncode, input_name=srcname)
+            if want_output:
+                result.output_name = output
+            yield result
+
+    @contextlib.contextmanager
+    def cached_compile(self, code: 'mesonlib.FileOrString', cdata: coredata.CoreData, *,
+                       extra_args: T.Union[None, T.List[str], CompilerArgs] = None,
+                       mode: str = 'link',
+                       temp_dir: T.Optional[str] = None) -> T.Iterator[T.Optional[CompileResult]]:
+        # TODO: There's isn't really any reason for this to be a context manager
+
+        # Calculate the key
+        textra_args = tuple(extra_args) if extra_args is not None else tuple()  # type: T.Tuple[str, ...]
+        key = (tuple(self.exelist), self.version, code, textra_args, mode)  # type: coredata.CompilerCheckCacheKey
+
+        # Check if not cached, and generate, otherwise get from the cache
+        if key in cdata.compiler_check_cache:
+            p = cdata.compiler_check_cache[key]
+            p.cached = True
+            mlog.debug('Using cached compile:')
+            mlog.debug('Cached command line: ', ' '.join(p.command), '\n')
+            mlog.debug('Code:\n', code)
+            mlog.debug('Cached compiler stdout:\n', p.stdout)
+            mlog.debug('Cached compiler stderr:\n', p.stderr)
+            yield p
+        else:
+            with self.compile(code, extra_args=extra_args, mode=mode, want_output=False, temp_dir=temp_dir) as p:
+                cdata.compiler_check_cache[key] = p
+                yield p
+
+    def get_colorout_args(self, colortype: str) -> T.List[str]:
+        # TODO: colortype can probably be an emum
+        return []
+
+    # Some compilers (msvc) write debug info to a separate file.
+    # These args specify where it should be written.
+    def get_compile_debugfile_args(self, rel_obj: str, pch: bool = False) -> T.List[str]:
+        return []
+
+    def get_link_debugfile_name(self, targetfile: str) -> str:
+        return self.linker.get_debugfile_name(targetfile)
+
+    def get_link_debugfile_args(self, targetfile: str) -> T.List[str]:
+        return self.linker.get_debugfile_args(targetfile)
+
+    def get_std_shared_lib_link_args(self) -> T.List[str]:
+        return self.linker.get_std_shared_lib_args()
+
+    def get_std_shared_module_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return self.linker.get_std_shared_module_args(options)
+
+    def get_link_whole_for(self, args: T.List[str]) -> T.List[str]:
+        return self.linker.get_link_whole_for(args)
+
+    def get_allow_undefined_link_args(self) -> T.List[str]:
+        return self.linker.get_allow_undefined_args()
+
+    def no_undefined_link_args(self) -> T.List[str]:
+        return self.linker.no_undefined_args()
+
+    def get_instruction_set_args(self, instruction_set: str) -> T.Optional[T.List[str]]:
+        """Compiler arguments needed to enable the given instruction set.
+
+        Return type ay be an empty list meaning nothing needed or None
+        meaning the given set is not supported.
+        """
+        return None
+
+    def build_rpath_args(self, env: 'Environment', build_dir: str, from_dir: str,
+                         rpath_paths: T.Tuple[str, ...], build_rpath: str,
+                         install_rpath: str) -> T.Tuple[T.List[str], T.Set[bytes]]:
+        return self.linker.build_rpath_args(
+            env, build_dir, from_dir, rpath_paths, build_rpath, install_rpath)
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def thread_link_flags(self, env: 'Environment') -> T.List[str]:
+        return self.linker.thread_flags(env)
+
+    def openmp_flags(self) -> T.List[str]:
+        raise EnvironmentException('Language %s does not support OpenMP flags.' % self.get_display_language())
+
+    def openmp_link_flags(self) -> T.List[str]:
+        return self.openmp_flags()
+
+    def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def gnu_symbol_visibility_args(self, vistype: str) -> T.List[str]:
+        return []
+
+    def get_gui_app_args(self, value: bool) -> T.List[str]:
+        # Only used on Windows
+        return self.linker.get_gui_app_args(value)
+
+    def get_win_subsystem_args(self, value: str) -> T.List[str]:
+        # By default the dynamic linker is going to return an empty
+        # array in case it either doesn't support Windows subsystems
+        # or does not target Windows
+        return self.linker.get_win_subsystem_args(value)
+
+    def has_func_attribute(self, name: str, env: 'Environment') -> T.Tuple[bool, bool]:
+        raise EnvironmentException(
+            f'Language {self.get_display_language()} does not support function attributes.')
+
+    def get_pic_args(self) -> T.List[str]:
+        m = 'Language {} does not support position-independent code'
+        raise EnvironmentException(m.format(self.get_display_language()))
+
+    def get_pie_args(self) -> T.List[str]:
+        m = 'Language {} does not support position-independent executable'
+        raise EnvironmentException(m.format(self.get_display_language()))
+
+    def get_pie_link_args(self) -> T.List[str]:
+        return self.linker.get_pie_args()
+
+    def get_argument_syntax(self) -> str:
+        """Returns the argument family type.
+
+        Compilers fall into families if they try to emulate the command line
+        interface of another compiler. For example, clang is in the GCC family
+        since it accepts most of the same arguments as GCC. ICL (ICC on
+        windows) is in the MSVC family since it accepts most of the same
+        arguments as MSVC.
+        """
+        return 'other'
+
+    def get_profile_generate_args(self) -> T.List[str]:
+        raise EnvironmentException(
+            '%s does not support get_profile_generate_args ' % self.get_id())
+
+    def get_profile_use_args(self) -> T.List[str]:
+        raise EnvironmentException(
+            '%s does not support get_profile_use_args ' % self.get_id())
+
+    def remove_linkerlike_args(self, args: T.List[str]) -> T.List[str]:
+        rm_exact = ('-headerpad_max_install_names',)
+        rm_prefixes = ('-Wl,', '-L',)
+        rm_next = ('-L', '-framework',)
+        ret = []  # T.List[str]
+        iargs = iter(args)
+        for arg in iargs:
+            # Remove this argument
+            if arg in rm_exact:
+                continue
+            # If the argument starts with this, but is not *exactly* this
+            # f.ex., '-L' should match ['-Lfoo'] but not ['-L', 'foo']
+            if arg.startswith(rm_prefixes) and arg not in rm_prefixes:
+                continue
+            # Ignore this argument and the one after it
+            if arg in rm_next:
+                next(iargs)
+                continue
+            ret.append(arg)
+        return ret
+
+    def get_lto_compile_args(self, *, threads: int = 0, mode: str = 'default') -> T.List[str]:
+        return []
+
+    def get_lto_link_args(self, *, threads: int = 0, mode: str = 'default',
+                          thinlto_cache_dir: T.Optional[str] = None) -> T.List[str]:
+        return self.linker.get_lto_args()
+
+    def sanitizer_compile_args(self, value: str) -> T.List[str]:
+        return []
+
+    def sanitizer_link_args(self, value: str) -> T.List[str]:
+        return self.linker.sanitizer_args(value)
+
+    def get_asneeded_args(self) -> T.List[str]:
+        return self.linker.get_asneeded_args()
+
+    def headerpad_args(self) -> T.List[str]:
+        return self.linker.headerpad_args()
+
+    def bitcode_args(self) -> T.List[str]:
+        return self.linker.bitcode_args()
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        raise EnvironmentException(f'{self.id} does not implement get_buildtype_args')
+
+    def get_buildtype_linker_args(self, buildtype: str) -> T.List[str]:
+        return self.linker.get_buildtype_args(buildtype)
+
+    def get_soname_args(self, env: 'Environment', prefix: str, shlib_name: str,
+                        suffix: str, soversion: str,
+                        darwin_versions: T.Tuple[str, str]) -> T.List[str]:
+        return self.linker.get_soname_args(
+            env, prefix, shlib_name, suffix, soversion,
+            darwin_versions)
+
+    def get_target_link_args(self, target: 'BuildTarget') -> T.List[str]:
+        return target.link_args
+
+    def get_dependency_compile_args(self, dep: 'Dependency') -> T.List[str]:
+        return dep.get_compile_args()
+
+    def get_dependency_link_args(self, dep: 'Dependency') -> T.List[str]:
+        return dep.get_link_args()
+
+    @classmethod
+    def use_linker_args(cls, linker: str, version: str) -> T.List[str]:
+        """Get a list of arguments to pass to the compiler to set the linker.
+        """
+        return []
+
+    def get_coverage_args(self) -> T.List[str]:
+        return []
+
+    def get_coverage_link_args(self) -> T.List[str]:
+        return self.linker.get_coverage_args()
+
+    def get_disable_assert_args(self) -> T.List[str]:
+        return []
+
+    def get_crt_compile_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        raise EnvironmentException('This compiler does not support Windows CRT selection')
+
+    def get_crt_link_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        raise EnvironmentException('This compiler does not support Windows CRT selection')
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return []
+
+    def get_preprocess_only_args(self) -> T.List[str]:
+        raise EnvironmentException('This compiler does not have a preprocessor')
+
+    def get_preprocess_to_file_args(self) -> T.List[str]:
+        return self.get_preprocess_only_args()
+
+    def get_default_include_dirs(self) -> T.List[str]:
+        # TODO: This is a candidate for returning an immutable list
+        return []
+
+    def get_largefile_args(self) -> T.List[str]:
+        '''Enable transparent large-file-support for 32-bit UNIX systems'''
+        if not (self.get_argument_syntax() == 'msvc' or self.info.is_darwin()):
+            # Enable large-file support unconditionally on all platforms other
+            # than macOS and MSVC. macOS is now 64-bit-only so it doesn't
+            # need anything special, and MSVC doesn't have automatic LFS.
+            # You must use the 64-bit counterparts explicitly.
+            # glibc, musl, and uclibc, and all BSD libcs support this. On Android,
+            # support for transparent LFS is available depending on the version of
+            # Bionic: https://github.com/android/platform_bionic#32-bit-abi-bugs
+            # https://code.google.com/p/android/issues/detail?id=64613
+            #
+            # If this breaks your code, fix it! It's been 20+ years!
+            return ['-D_FILE_OFFSET_BITS=64']
+            # We don't enable -D_LARGEFILE64_SOURCE since that enables
+            # transitionary features and must be enabled by programs that use
+            # those features explicitly.
+        return []
+
+    def get_library_dirs(self, env: 'Environment',
+                         elf_class: T.Optional[int] = None) -> T.List[str]:
+        return []
+
+    def get_return_value(self,
+                         fname: str,
+                         rtype: str,
+                         prefix: str,
+                         env: 'Environment',
+                         extra_args: T.Optional[T.List[str]],
+                         dependencies: T.Optional[T.List['Dependency']]) -> T.Union[str, int]:
+        raise EnvironmentException(f'{self.id} does not support get_return_value')
+
+    def find_framework(self,
+                       name: str,
+                       env: 'Environment',
+                       extra_dirs: T.List[str],
+                       allow_system: bool = True) -> T.Optional[T.List[str]]:
+        raise EnvironmentException(f'{self.id} does not support find_framework')
+
+    def find_framework_paths(self, env: 'Environment') -> T.List[str]:
+        raise EnvironmentException(f'{self.id} does not support find_framework_paths')
+
+    def attribute_check_func(self, name: str) -> str:
+        raise EnvironmentException(f'{self.id} does not support attribute checks')
+
+    def get_pch_suffix(self) -> str:
+        raise EnvironmentException(f'{self.id} does not support pre compiled headers')
+
+    def get_pch_name(self, name: str) -> str:
+        raise EnvironmentException(f'{self.id} does not support pre compiled headers')
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        raise EnvironmentException(f'{self.id} does not support pre compiled headers')
+
+    def get_has_func_attribute_extra_args(self, name: str) -> T.List[str]:
+        raise EnvironmentException(f'{self.id} does not support function attributes')
+
+    def name_string(self) -> str:
+        return ' '.join(self.exelist)
+
+    @abc.abstractmethod
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        """Check that this compiler actually works.
+
+        This should provide a simple compile/link test. Something as simple as:
+        ```python
+        main(): return 0
+        ```
+        is good enough here.
+        """
+
+    def split_shlib_to_parts(self, fname: str) -> T.Tuple[T.Optional[str], str]:
+        return None, fname
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return []
+
+    def get_std_exe_link_args(self) -> T.List[str]:
+        # TODO: is this a linker property?
+        return []
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        return []
+
+    def depfile_for_object(self, objfile: str) -> T.Optional[str]:
+        return objfile + '.' + self.get_depfile_suffix()
+
+    def get_depfile_suffix(self) -> str:
+        raise EnvironmentException(f'{self.id} does not implement get_depfile_suffix')
+
+    def get_no_stdinc_args(self) -> T.List[str]:
+        """Arguments to turn off default inclusion of standard libraries."""
+        return []
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        return []
+
+    def get_werror_args(self) -> T.List[str]:
+        return []
+
+    @abc.abstractmethod
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        pass
+
+    def get_module_incdir_args(self) -> T.Tuple[str, ...]:
+        raise EnvironmentException(f'{self.id} does not implement get_module_incdir_args')
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        raise EnvironmentException(f'{self.id} does not implement get_module_outdir_args')
+
+    def module_name_to_filename(self, module_name: str) -> str:
+        raise EnvironmentException(f'{self.id} does not implement module_name_to_filename')
+
+    def get_compiler_check_args(self, mode: CompileCheckMode) -> T.List[str]:
+        """Arguments to pass the compiler and/or linker for checks.
+
+        The default implementation turns off optimizations.
+
+        Examples of things that go here:
+          - extra arguments for error checking
+          - Arguments required to make the compiler exit with a non-zero status
+            when something is wrong.
+        """
+        return self.get_no_optimization_args()
+
+    def get_no_optimization_args(self) -> T.List[str]:
+        """Arguments to the compiler to turn off all optimizations."""
+        return []
+
+    def build_wrapper_args(self, env: 'Environment',
+                           extra_args: T.Union[None, CompilerArgs, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]],
+                           dependencies: T.Optional[T.List['Dependency']],
+                           mode: CompileCheckMode = CompileCheckMode.COMPILE) -> CompilerArgs:
+        """Arguments to pass the build_wrapper helper.
+
+        This generally needs to be set on a per-language baises. It provides
+        a hook for languages to handle dependencies and extra args. The base
+        implementation handles the most common cases, namely adding the
+        check_arguments, unwrapping dependencies, and appending extra args.
+        """
+        if callable(extra_args):
+            extra_args = extra_args(mode)
+        if extra_args is None:
+            extra_args = []
+        if dependencies is None:
+            dependencies = []
+
+        # Collect compiler arguments
+        args = self.compiler_args(self.get_compiler_check_args(mode))
+        for d in dependencies:
+            # Add compile flags needed by dependencies
+            args += d.get_compile_args()
+            if mode is CompileCheckMode.LINK:
+                # Add link flags needed to find dependencies
+                args += d.get_link_args()
+
+        if mode is CompileCheckMode.COMPILE:
+            # Add DFLAGS from the env
+            args += env.coredata.get_external_args(self.for_machine, self.language)
+        elif mode is CompileCheckMode.LINK:
+            # Add LDFLAGS from the env
+            args += env.coredata.get_external_link_args(self.for_machine, self.language)
+        # extra_args must override all other arguments, so we add them last
+        args += extra_args
+        return args
+
+    @contextlib.contextmanager
+    def _build_wrapper(self, code: 'mesonlib.FileOrString', env: 'Environment',
+                       extra_args: T.Union[None, CompilerArgs, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+                       dependencies: T.Optional[T.List['Dependency']] = None,
+                       mode: str = 'compile', want_output: bool = False,
+                       disable_cache: bool = False,
+                       temp_dir: str = None) -> T.Iterator[T.Optional[CompileResult]]:
+        """Helper for getting a cacched value when possible.
+
+        This method isn't meant to be called externally, it's mean to be
+        wrapped by other methods like compiles() and links().
+        """
+        args = self.build_wrapper_args(env, extra_args, dependencies, CompileCheckMode(mode))
+        if disable_cache or want_output:
+            with self.compile(code, extra_args=args, mode=mode, want_output=want_output, temp_dir=env.scratch_dir) as r:
+                yield r
+        else:
+            with self.cached_compile(code, env.coredata, extra_args=args, mode=mode, temp_dir=env.scratch_dir) as r:
+                yield r
+
+    def compiles(self, code: 'mesonlib.FileOrString', env: 'Environment', *,
+                 extra_args: T.Union[None, T.List[str], CompilerArgs, T.Callable[[CompileCheckMode], T.List[str]]] = None,
+                 dependencies: T.Optional[T.List['Dependency']] = None,
+                 mode: str = 'compile',
+                 disable_cache: bool = False) -> T.Tuple[bool, bool]:
+        with self._build_wrapper(code, env, extra_args, dependencies, mode, disable_cache=disable_cache) as p:
+            return p.returncode == 0, p.cached
+
+    def links(self, code: 'mesonlib.FileOrString', env: 'Environment', *,
+              compiler: T.Optional['Compiler'] = None,
+              extra_args: T.Union[None, T.List[str], CompilerArgs, T.Callable[[CompileCheckMode], T.List[str]]] = None,
+              dependencies: T.Optional[T.List['Dependency']] = None,
+              mode: str = 'compile',
+              disable_cache: bool = False) -> T.Tuple[bool, bool]:
+        if compiler:
+            with compiler._build_wrapper(code, env, dependencies=dependencies, want_output=True) as r:
+                objfile = mesonlib.File.from_absolute_file(r.output_name)
+                return self.compiles(objfile, env, extra_args=extra_args,
+                                     dependencies=dependencies, mode='link', disable_cache=True)
+
+        return self.compiles(code, env, extra_args=extra_args,
+                             dependencies=dependencies, mode='link', disable_cache=disable_cache)
+
+    def get_feature_args(self, kwargs: T.Dict[str, T.Any], build_to_src: str) -> T.List[str]:
+        """Used by D for extra language features."""
+        # TODO: using a TypeDict here would improve this
+        raise EnvironmentException(f'{self.id} does not implement get_feature_args')
+
+    def get_prelink_args(self, prelink_name: str, obj_list: T.List[str]) -> T.List[str]:
+        raise EnvironmentException(f'{self.id} does not know how to do prelinking.')
+
+    def rsp_file_syntax(self) -> 'RSPFileSyntax':
+        """The format of the RSP file that this compiler supports.
+
+        If `self.can_linker_accept_rsp()` returns True, then this needs to
+        be implemented
+        """
+        return self.linker.rsp_file_syntax()
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        """Arguments required for a debug build."""
+        return []
+
+    def get_no_warn_args(self) -> T.List[str]:
+        """Arguments to completely disable warnings."""
+        return []
+
+    def needs_static_linker(self) -> bool:
+        raise NotImplementedError(f'There is no static linker for {self.language}')
+
+    def get_preprocessor(self) -> Compiler:
+        """Get compiler's preprocessor.
+        """
+        raise EnvironmentException(f'{self.get_id()} does not support preprocessor')
+
+def get_global_options(lang: str,
+                       comp: T.Type[Compiler],
+                       for_machine: MachineChoice,
+                       env: 'Environment') -> 'KeyedOptionDictType':
+    """Retrieve options that apply to all compilers for a given language."""
+    description = f'Extra arguments passed to the {lang}'
+    argkey = OptionKey('args', lang=lang, machine=for_machine)
+    largkey = argkey.evolve('link_args')
+    envkey = argkey.evolve('env_args')
+
+    comp_key = argkey if argkey in env.options else envkey
+
+    comp_options = env.options.get(comp_key, [])
+    link_options = env.options.get(largkey, [])
+
+    cargs = coredata.UserArrayOption(
+        description + ' compiler',
+        comp_options, split_args=True, user_input=True, allow_dups=True)
+
+    largs = coredata.UserArrayOption(
+        description + ' linker',
+        link_options, split_args=True, user_input=True, allow_dups=True)
+
+    if comp.INVOKES_LINKER and comp_key == envkey:
+        # If the compiler acts as a linker driver, and we're using the
+        # environment variable flags for both the compiler and linker
+        # arguments, then put the compiler flags in the linker flags as well.
+        # This is how autotools works, and the env vars freature is for
+        # autotools compatibility.
+        largs.extend_value(comp_options)
+
+    opts: 'KeyedOptionDictType' = {argkey: cargs, largkey: largs}
+
+    return opts
diff --git a/mesonbuild/compilers/cpp.py b/mesonbuild/compilers/cpp.py
new file mode 100644
index 0000000..4466a1b
--- /dev/null
+++ b/mesonbuild/compilers/cpp.py
@@ -0,0 +1,890 @@
+# Copyright 2012-2017 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import copy
+import functools
+import os.path
+import typing as T
+
+from .. import coredata
+from .. import mlog
+from ..mesonlib import MesonException, version_compare, OptionKey
+
+from .compilers import (
+    gnu_winlibs,
+    msvc_winlibs,
+    Compiler,
+)
+from .c_function_attributes import CXX_FUNC_ATTRIBUTES, C_FUNC_ATTRIBUTES
+from .mixins.clike import CLikeCompiler
+from .mixins.ccrx import CcrxCompiler
+from .mixins.ti import TICompiler
+from .mixins.arm import ArmCompiler, ArmclangCompiler
+from .mixins.visualstudio import MSVCCompiler, ClangClCompiler
+from .mixins.gnu import GnuCompiler, gnu_common_warning_args, gnu_cpp_warning_args
+from .mixins.intel import IntelGnuLikeCompiler, IntelVisualStudioLikeCompiler
+from .mixins.clang import ClangCompiler
+from .mixins.elbrus import ElbrusCompiler
+from .mixins.pgi import PGICompiler
+from .mixins.emscripten import EmscriptenMixin
+
+if T.TYPE_CHECKING:
+    from .compilers import CompileCheckMode
+    from ..coredata import MutableKeyedOptionDictType, KeyedOptionDictType
+    from ..dependencies import Dependency
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..linkers import DynamicLinker
+    from ..mesonlib import MachineChoice
+    from ..programs import ExternalProgram
+    CompilerMixinBase = CLikeCompiler
+else:
+    CompilerMixinBase = object
+
+
+def non_msvc_eh_options(eh: str, args: T.List[str]) -> None:
+    if eh == 'none':
+        args.append('-fno-exceptions')
+    elif eh in {'s', 'c'}:
+        mlog.warning('non-MSVC compilers do not support ' + eh + ' exception handling.' +
+                     'You may want to set eh to \'default\'.')
+
+class CPPCompiler(CLikeCompiler, Compiler):
+    def attribute_check_func(self, name: str) -> str:
+        try:
+            return CXX_FUNC_ATTRIBUTES.get(name, C_FUNC_ATTRIBUTES[name])
+        except KeyError:
+            raise MesonException(f'Unknown function attribute "{name}"')
+
+    language = 'cpp'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        # If a child ObjCPP class has already set it, don't set it ourselves
+        Compiler.__init__(self, ccache, exelist, version, for_machine, info,
+                          is_cross=is_cross, linker=linker,
+                          full_version=full_version)
+        CLikeCompiler.__init__(self, exe_wrapper)
+
+    @staticmethod
+    def get_display_language() -> str:
+        return 'C++'
+
+    def get_no_stdinc_args(self) -> T.List[str]:
+        return ['-nostdinc++']
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        code = 'class breakCCompiler;int main(void) { return 0; }\n'
+        return self._sanity_check_impl(work_dir, environment, 'sanitycheckcpp.cc', code)
+
+    def get_compiler_check_args(self, mode: CompileCheckMode) -> T.List[str]:
+        # -fpermissive allows non-conforming code to compile which is necessary
+        # for many C++ checks. Particularly, the has_header_symbol check is
+        # too strict without this and always fails.
+        return super().get_compiler_check_args(mode) + ['-fpermissive']
+
+    def has_header_symbol(self, hname: str, symbol: str, prefix: str,
+                          env: 'Environment', *,
+                          extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+                          dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        # Check if it's a C-like symbol
+        found, cached = super().has_header_symbol(hname, symbol, prefix, env,
+                                                  extra_args=extra_args,
+                                                  dependencies=dependencies)
+        if found:
+            return True, cached
+        # Check if it's a class or a template
+        if extra_args is None:
+            extra_args = []
+        t = f'''{prefix}
+        #include <{hname}>
+        using {symbol};
+        int main(void) {{ return 0; }}'''
+        return self.compiles(t, env, extra_args=extra_args,
+                             dependencies=dependencies)
+
+    def _test_cpp_std_arg(self, cpp_std_value: str) -> bool:
+        # Test whether the compiler understands a -std=XY argument
+        assert cpp_std_value.startswith('-std=')
+
+        # This test does not use has_multi_arguments() for two reasons:
+        # 1. has_multi_arguments() requires an env argument, which the compiler
+        #    object does not have at this point.
+        # 2. even if it did have an env object, that might contain another more
+        #    recent -std= argument, which might lead to a cascaded failure.
+        CPP_TEST = 'int i = static_cast<int>(0);'
+        with self.compile(CPP_TEST, extra_args=[cpp_std_value], mode='compile') as p:
+            if p.returncode == 0:
+                mlog.debug(f'Compiler accepts {cpp_std_value}:', 'YES')
+                return True
+            else:
+                mlog.debug(f'Compiler accepts {cpp_std_value}:', 'NO')
+                return False
+
+    @functools.lru_cache()
+    def _find_best_cpp_std(self, cpp_std: str) -> str:
+        # The initial version mapping approach to make falling back
+        # from '-std=c++14' to '-std=c++1y' was too brittle. For instance,
+        # Apple's Clang uses a different versioning scheme to upstream LLVM,
+        # making the whole detection logic awfully brittle. Instead, let's
+        # just see if feeding GCC or Clang our '-std=' setting works, and
+        # if not, try the fallback argument.
+        CPP_FALLBACKS = {
+            'c++11': 'c++0x',
+            'gnu++11': 'gnu++0x',
+            'c++14': 'c++1y',
+            'gnu++14': 'gnu++1y',
+            'c++17': 'c++1z',
+            'gnu++17': 'gnu++1z',
+            'c++20': 'c++2a',
+            'gnu++20': 'gnu++2a',
+        }
+
+        # Currently, remapping is only supported for Clang, Elbrus and GCC
+        assert self.id in frozenset(['clang', 'lcc', 'gcc', 'emscripten', 'armltdclang', 'intel-llvm'])
+
+        if cpp_std not in CPP_FALLBACKS:
+            # 'c++03' and 'c++98' don't have fallback types
+            return '-std=' + cpp_std
+
+        for i in (cpp_std, CPP_FALLBACKS[cpp_std]):
+            cpp_std_value = '-std=' + i
+            if self._test_cpp_std_arg(cpp_std_value):
+                return cpp_std_value
+
+        raise MesonException(f'C++ Compiler does not support -std={cpp_std}')
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = super().get_options()
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts.update({
+            key: coredata.UserComboOption(
+                'C++ language standard to use',
+                ['none'],
+                'none',
+            ),
+        })
+        return opts
+
+
+class ClangCPPCompiler(ClangCompiler, CPPCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        ClangCompiler.__init__(self, defines)
+        default_warn_args = ['-Wall', '-Winvalid-pch']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+                          'everything': ['-Weverything']}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CPPCompiler.get_options(self)
+        key = OptionKey('key', machine=self.for_machine, lang=self.language)
+        opts.update({
+            key.evolve('eh'): coredata.UserComboOption(
+                'C++ exception handling type.',
+                ['none', 'default', 'a', 's', 'sc'],
+                'default',
+            ),
+            key.evolve('rtti'): coredata.UserBooleanOption('Enable RTTI', True),
+        })
+        opts[key.evolve('std')].choices = [
+            'none', 'c++98', 'c++03', 'c++11', 'c++14', 'c++17', 'c++1z',
+            'c++2a', 'c++20', 'gnu++11', 'gnu++14', 'gnu++17', 'gnu++1z',
+            'gnu++2a', 'gnu++20',
+        ]
+        if self.info.is_windows() or self.info.is_cygwin():
+            opts.update({
+                key.evolve('winlibs'): coredata.UserArrayOption(
+                    'Standard Win libraries to link against',
+                    gnu_winlibs,
+                ),
+            })
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            args.append(self._find_best_cpp_std(std.value))
+
+        non_msvc_eh_options(options[key.evolve('eh')].value, args)
+
+        if not options[key.evolve('rtti')].value:
+            args.append('-fno-rtti')
+
+        return args
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        if self.info.is_windows() or self.info.is_cygwin():
+            # without a typedict mypy can't understand this.
+            key = OptionKey('winlibs', machine=self.for_machine, lang=self.language)
+            libs = options[key].value.copy()
+            assert isinstance(libs, list)
+            for l in libs:
+                assert isinstance(l, str)
+            return libs
+        return []
+
+    def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
+        # We need to apply the search prefix here, as these link arguments may
+        # be passed to a different compiler with a different set of default
+        # search paths, such as when using Clang for C/C++ and gfortran for
+        # fortran,
+        search_dirs: T.List[str] = []
+        for d in self.get_compiler_dirs(env, 'libraries'):
+            search_dirs.append(f'-L{d}')
+        return search_dirs + ['-lstdc++']
+
+
+class ArmLtdClangCPPCompiler(ClangCPPCompiler):
+
+    id = 'armltdclang'
+
+
+class AppleClangCPPCompiler(ClangCPPCompiler):
+    def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
+        # We need to apply the search prefix here, as these link arguments may
+        # be passed to a different compiler with a different set of default
+        # search paths, such as when using Clang for C/C++ and gfortran for
+        # fortran,
+        search_dirs: T.List[str] = []
+        for d in self.get_compiler_dirs(env, 'libraries'):
+            search_dirs.append(f'-L{d}')
+        return search_dirs + ['-lc++']
+
+
+class EmscriptenCPPCompiler(EmscriptenMixin, ClangCPPCompiler):
+
+    id = 'emscripten'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 full_version: T.Optional[str] = None):
+        if not is_cross:
+            raise MesonException('Emscripten compiler can only be used for cross compilation.')
+        if not version_compare(version, '>=1.39.19'):
+            raise MesonException('Meson requires Emscripten >= 1.39.19')
+        ClangCPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                                  info, exe_wrapper=exe_wrapper, linker=linker,
+                                  defines=defines, full_version=full_version)
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            args.append(self._find_best_cpp_std(std.value))
+        return args
+
+
+class ArmclangCPPCompiler(ArmclangCompiler, CPPCompiler):
+    '''
+    Keil armclang
+    '''
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        ArmclangCompiler.__init__(self)
+        default_warn_args = ['-Wall', '-Winvalid-pch']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+                          'everything': ['-Weverything']}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CPPCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts.update({
+            key.evolve('eh'): coredata.UserComboOption(
+                'C++ exception handling type.',
+                ['none', 'default', 'a', 's', 'sc'],
+                'default',
+            ),
+        })
+        opts[key].choices = [
+            'none', 'c++98', 'c++03', 'c++11', 'c++14', 'c++17', 'gnu++98',
+            'gnu++03', 'gnu++11', 'gnu++14', 'gnu++17',
+        ]
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            args.append('-std=' + std.value)
+
+        non_msvc_eh_options(options[key.evolve('eh')].value, args)
+
+        return args
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return []
+
+
+class GnuCPPCompiler(GnuCompiler, CPPCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        GnuCompiler.__init__(self, defines)
+        default_warn_args = ['-Wall', '-Winvalid-pch']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+                          'everything': (default_warn_args + ['-Wextra', '-Wpedantic'] +
+                                         self.supported_warn_args(gnu_common_warning_args) +
+                                         self.supported_warn_args(gnu_cpp_warning_args))}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts = CPPCompiler.get_options(self)
+        opts.update({
+            key.evolve('eh'): coredata.UserComboOption(
+                'C++ exception handling type.',
+                ['none', 'default', 'a', 's', 'sc'],
+                'default',
+            ),
+            key.evolve('rtti'): coredata.UserBooleanOption('Enable RTTI', True),
+            key.evolve('debugstl'): coredata.UserBooleanOption(
+                'STL debug mode',
+                False,
+            )
+        })
+        opts[key].choices = [
+            'none', 'c++98', 'c++03', 'c++11', 'c++14', 'c++17', 'c++1z',
+            'c++2a', 'c++20', 'gnu++03', 'gnu++11', 'gnu++14', 'gnu++17',
+            'gnu++1z', 'gnu++2a', 'gnu++20',
+        ]
+        if self.info.is_windows() or self.info.is_cygwin():
+            opts.update({
+                key.evolve('winlibs'): coredata.UserArrayOption(
+                    'Standard Win libraries to link against',
+                    gnu_winlibs,
+                ),
+            })
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            args.append(self._find_best_cpp_std(std.value))
+
+        non_msvc_eh_options(options[key.evolve('eh')].value, args)
+
+        if not options[key.evolve('rtti')].value:
+            args.append('-fno-rtti')
+
+        if options[key.evolve('debugstl')].value:
+            args.append('-D_GLIBCXX_DEBUG=1')
+        return args
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        if self.info.is_windows() or self.info.is_cygwin():
+            # without a typedict mypy can't understand this.
+            key = OptionKey('winlibs', machine=self.for_machine, lang=self.language)
+            libs = options[key].value.copy()
+            assert isinstance(libs, list)
+            for l in libs:
+                assert isinstance(l, str)
+            return libs
+        return []
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        return ['-fpch-preprocess', '-include', os.path.basename(header)]
+
+    def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
+        # We need to apply the search prefix here, as these link arguments may
+        # be passed to a different compiler with a different set of default
+        # search paths, such as when using Clang for C/C++ and gfortran for
+        # fortran,
+        search_dirs: T.List[str] = []
+        for d in self.get_compiler_dirs(env, 'libraries'):
+            search_dirs.append(f'-L{d}')
+        return ['-lstdc++']
+
+
+class PGICPPCompiler(PGICompiler, CPPCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        PGICompiler.__init__(self)
+
+
+class NvidiaHPC_CPPCompiler(PGICompiler, CPPCompiler):
+
+    id = 'nvidia_hpc'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        PGICompiler.__init__(self)
+
+
+class ElbrusCPPCompiler(ElbrusCompiler, CPPCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        ElbrusCompiler.__init__(self)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CPPCompiler.get_options(self)
+
+        cpp_stds = ['none', 'c++98', 'gnu++98']
+        if version_compare(self.version, '>=1.20.00'):
+            cpp_stds += ['c++03', 'c++0x', 'c++11', 'gnu++03', 'gnu++0x', 'gnu++11']
+        if version_compare(self.version, '>=1.21.00') and version_compare(self.version, '<1.22.00'):
+            cpp_stds += ['c++14', 'gnu++14', 'c++1y', 'gnu++1y']
+        if version_compare(self.version, '>=1.22.00'):
+            cpp_stds += ['c++14', 'gnu++14']
+        if version_compare(self.version, '>=1.23.00'):
+            cpp_stds += ['c++1y', 'gnu++1y']
+        if version_compare(self.version, '>=1.24.00'):
+            cpp_stds += ['c++1z', 'c++17', 'gnu++1z', 'gnu++17']
+        if version_compare(self.version, '>=1.25.00'):
+            cpp_stds += ['c++2a', 'gnu++2a']
+        if version_compare(self.version, '>=1.26.00'):
+            cpp_stds += ['c++20', 'gnu++20']
+
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts.update({
+            key.evolve('eh'): coredata.UserComboOption(
+                'C++ exception handling type.',
+                ['none', 'default', 'a', 's', 'sc'],
+                'default',
+            ),
+            key.evolve('debugstl'): coredata.UserBooleanOption(
+                'STL debug mode',
+                False,
+            ),
+        })
+        opts[key].choices = cpp_stds
+        return opts
+
+    # Elbrus C++ compiler does not have lchmod, but there is only linker warning, not compiler error.
+    # So we should explicitly fail at this case.
+    def has_function(self, funcname: str, prefix: str, env: 'Environment', *,
+                     extra_args: T.Optional[T.List[str]] = None,
+                     dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        if funcname == 'lchmod':
+            return False, False
+        else:
+            return super().has_function(funcname, prefix, env,
+                                        extra_args=extra_args,
+                                        dependencies=dependencies)
+
+    # Elbrus C++ compiler does not support RTTI, so don't check for it.
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            args.append(self._find_best_cpp_std(std.value))
+
+        non_msvc_eh_options(options[key.evolve('eh')].value, args)
+
+        if options[key.evolve('debugstl')].value:
+            args.append('-D_GLIBCXX_DEBUG=1')
+        return args
+
+
+class IntelCPPCompiler(IntelGnuLikeCompiler, CPPCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        IntelGnuLikeCompiler.__init__(self)
+        self.lang_header = 'c++-header'
+        default_warn_args = ['-Wall', '-w3', '-Wpch-messages']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args + ['-diag-disable:remark'],
+                          '2': default_warn_args + ['-Wextra', '-diag-disable:remark'],
+                          '3': default_warn_args + ['-Wextra', '-diag-disable:remark'],
+                          'everything': default_warn_args + ['-Wextra']}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CPPCompiler.get_options(self)
+        # Every Unix compiler under the sun seems to accept -std=c++03,
+        # with the exception of ICC. Instead of preventing the user from
+        # globally requesting C++03, we transparently remap it to C++98
+        c_stds = ['c++98', 'c++03']
+        g_stds = ['gnu++98', 'gnu++03']
+        if version_compare(self.version, '>=15.0.0'):
+            c_stds += ['c++11', 'c++14']
+            g_stds += ['gnu++11']
+        if version_compare(self.version, '>=16.0.0'):
+            c_stds += ['c++17']
+        if version_compare(self.version, '>=17.0.0'):
+            g_stds += ['gnu++14']
+        if version_compare(self.version, '>=19.1.0'):
+            c_stds += ['c++2a']
+            g_stds += ['gnu++2a']
+
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts.update({
+            key.evolve('eh'): coredata.UserComboOption(
+                'C++ exception handling type.',
+                ['none', 'default', 'a', 's', 'sc'],
+                'default',
+            ),
+            key.evolve('rtti'): coredata.UserBooleanOption('Enable RTTI', True),
+            key.evolve('debugstl'): coredata.UserBooleanOption('STL debug mode', False),
+        })
+        opts[key].choices = ['none'] + c_stds + g_stds
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            remap_cpp03 = {
+                'c++03': 'c++98',
+                'gnu++03': 'gnu++98'
+            }
+            args.append('-std=' + remap_cpp03.get(std.value, std.value))
+        if options[key.evolve('eh')].value == 'none':
+            args.append('-fno-exceptions')
+        if not options[key.evolve('rtti')].value:
+            args.append('-fno-rtti')
+        if options[key.evolve('debugstl')].value:
+            args.append('-D_GLIBCXX_DEBUG=1')
+        return args
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return []
+
+
+class IntelLLVMCPPCompiler(ClangCPPCompiler):
+
+    id = 'intel-llvm'
+
+
+class VisualStudioLikeCPPCompilerMixin(CompilerMixinBase):
+
+    """Mixin for C++ specific method overrides in MSVC-like compilers."""
+
+    VC_VERSION_MAP = {
+        'none': (True, None),
+        'vc++11': (True, 11),
+        'vc++14': (True, 14),
+        'vc++17': (True, 17),
+        'vc++20': (True, 20),
+        'vc++latest': (True, "latest"),
+        'c++11': (False, 11),
+        'c++14': (False, 14),
+        'c++17': (False, 17),
+        'c++20': (False, 20),
+        'c++latest': (False, "latest"),
+    }
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        # need a typeddict for this
+        key = OptionKey('winlibs', machine=self.for_machine, lang=self.language)
+        return T.cast('T.List[str]', options[key].value[:])
+
+    def _get_options_impl(self, opts: 'MutableKeyedOptionDictType', cpp_stds: T.List[str]) -> 'MutableKeyedOptionDictType':
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts.update({
+            key.evolve('eh'): coredata.UserComboOption(
+                'C++ exception handling type.',
+                ['none', 'default', 'a', 's', 'sc'],
+                'default',
+            ),
+            key.evolve('rtti'): coredata.UserBooleanOption('Enable RTTI', True),
+            key.evolve('winlibs'): coredata.UserArrayOption(
+                'Windows libs to link against.',
+                msvc_winlibs,
+            ),
+        })
+        opts[key.evolve('std')].choices = cpp_stds
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+
+        eh = options[key.evolve('eh')]
+        if eh.value == 'default':
+            args.append('/EHsc')
+        elif eh.value == 'none':
+            args.append('/EHs-c-')
+        else:
+            args.append('/EH' + eh.value)
+
+        if not options[key.evolve('rtti')].value:
+            args.append('/GR-')
+
+        permissive, ver = self.VC_VERSION_MAP[options[key].value]
+
+        if ver is not None:
+            args.append(f'/std:c++{ver}')
+
+        if not permissive:
+            args.append('/permissive-')
+
+        return args
+
+    def get_compiler_check_args(self, mode: CompileCheckMode) -> T.List[str]:
+        # XXX: this is a hack because so much GnuLike stuff is in the base CPPCompiler class.
+        return Compiler.get_compiler_check_args(self, mode)
+
+
+class CPP11AsCPP14Mixin(CompilerMixinBase):
+
+    """Mixin class for VisualStudio and ClangCl to replace C++11 std with C++14.
+
+    This is a limitation of Clang and MSVC that ICL doesn't share.
+    """
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        # Note: there is no explicit flag for supporting C++11; we attempt to do the best we can
+        # which means setting the C++ standard version to C++14, in compilers that support it
+        # (i.e., after VS2015U3)
+        # if one is using anything before that point, one cannot set the standard.
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        if options[key].value in {'vc++11', 'c++11'}:
+            mlog.warning(self.id, 'does not support C++11;',
+                         'attempting best effort; setting the standard to C++14', once=True)
+            # Don't mutate anything we're going to change, we need to use
+            # deepcopy since we're messing with members, and we can't simply
+            # copy the members because the option proxy doesn't support it.
+            options = copy.deepcopy(options)
+            if options[key].value == 'vc++11':
+                options[key].value = 'vc++14'
+            else:
+                options[key].value = 'c++14'
+        return super().get_option_compile_args(options)
+
+
+class VisualStudioCPPCompiler(CPP11AsCPP14Mixin, VisualStudioLikeCPPCompilerMixin, MSVCCompiler, CPPCompiler):
+
+    id = 'msvc'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo', target: str,
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        MSVCCompiler.__init__(self, target)
+
+        # By default, MSVC has a broken __cplusplus define that pretends to be c++98:
+        # https://docs.microsoft.com/en-us/cpp/build/reference/zc-cplusplus?view=msvc-160
+        # Pass the flag to enable a truthful define, if possible.
+        if version_compare(self.version, '>= 19.14.26428'):
+            self.always_args = self.always_args + ['/Zc:__cplusplus']
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        cpp_stds = ['none', 'c++11', 'vc++11']
+        # Visual Studio 2015 and later
+        if version_compare(self.version, '>=19'):
+            cpp_stds.extend(['c++14', 'c++latest', 'vc++latest'])
+        # Visual Studio 2017 and later
+        if version_compare(self.version, '>=19.11'):
+            cpp_stds.extend(['vc++14', 'c++17', 'vc++17'])
+        if version_compare(self.version, '>=19.29'):
+            cpp_stds.extend(['c++20', 'vc++20'])
+        return self._get_options_impl(super().get_options(), cpp_stds)
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        if options[key].value != 'none' and version_compare(self.version, '<19.00.24210'):
+            mlog.warning('This version of MSVC does not support cpp_std arguments')
+            options = copy.copy(options)
+            options[key].value = 'none'
+
+        args = super().get_option_compile_args(options)
+
+        if version_compare(self.version, '<19.11'):
+            try:
+                i = args.index('/permissive-')
+            except ValueError:
+                return args
+            del args[i]
+        return args
+
+class ClangClCPPCompiler(CPP11AsCPP14Mixin, VisualStudioLikeCPPCompilerMixin, ClangClCompiler, CPPCompiler):
+
+    id = 'clang-cl'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo', target: str,
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, [], exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        ClangClCompiler.__init__(self, target)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        cpp_stds = ['none', 'c++11', 'vc++11', 'c++14', 'vc++14', 'c++17', 'vc++17', 'c++20', 'vc++20', 'c++latest']
+        return self._get_options_impl(super().get_options(), cpp_stds)
+
+
+class IntelClCPPCompiler(VisualStudioLikeCPPCompilerMixin, IntelVisualStudioLikeCompiler, CPPCompiler):
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo', target: str,
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, [], exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        IntelVisualStudioLikeCompiler.__init__(self, target)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        # This has only been tested with version 19.0,
+        cpp_stds = ['none', 'c++11', 'vc++11', 'c++14', 'vc++14', 'c++17', 'vc++17', 'c++latest']
+        return self._get_options_impl(super().get_options(), cpp_stds)
+
+    def get_compiler_check_args(self, mode: CompileCheckMode) -> T.List[str]:
+        # XXX: this is a hack because so much GnuLike stuff is in the base CPPCompiler class.
+        return IntelVisualStudioLikeCompiler.get_compiler_check_args(self, mode)
+
+
+class IntelLLVMClCPPCompiler(IntelClCPPCompiler):
+
+    id = 'intel-llvm-cl'
+
+
+class ArmCPPCompiler(ArmCompiler, CPPCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        ArmCompiler.__init__(self)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CPPCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'c++03', 'c++11']
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value == 'c++11':
+            args.append('--cpp11')
+        elif std.value == 'c++03':
+            args.append('--cpp')
+        return args
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return []
+
+    def get_compiler_check_args(self, mode: CompileCheckMode) -> T.List[str]:
+        return []
+
+
+class CcrxCPPCompiler(CcrxCompiler, CPPCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        CcrxCompiler.__init__(self)
+
+    # Override CCompiler.get_always_args
+    def get_always_args(self) -> T.List[str]:
+        return ['-nologo', '-lang=cpp']
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return []
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return []
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [f'-output=obj={target}']
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return []
+
+    def get_compiler_check_args(self, mode: CompileCheckMode) -> T.List[str]:
+        return []
+
+class TICPPCompiler(TICompiler, CPPCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        CPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                             info, exe_wrapper, linker=linker, full_version=full_version)
+        TICompiler.__init__(self)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = CPPCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'c++03']
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            args.append('--' + std.value)
+        return args
+
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return []
+
+class C2000CPPCompiler(TICPPCompiler):
+    # Required for backwards compat with projects created before ti-cgt support existed
+    id = 'c2000'
diff --git a/mesonbuild/compilers/cs.py b/mesonbuild/compilers/cs.py
new file mode 100644
index 0000000..14fcfd7
--- /dev/null
+++ b/mesonbuild/compilers/cs.py
@@ -0,0 +1,154 @@
+# Copyright 2012-2017 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import os.path, subprocess
+import textwrap
+import typing as T
+
+from ..mesonlib import EnvironmentException
+from ..linkers import RSPFileSyntax
+
+from .compilers import Compiler, mono_buildtype_args
+from .mixins.islinker import BasicLinkerIsCompilerMixin
+
+if T.TYPE_CHECKING:
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..mesonlib import MachineChoice
+
+cs_optimization_args = {
+                        'plain': [],
+                        '0': [],
+                        'g': [],
+                        '1': ['-optimize+'],
+                        '2': ['-optimize+'],
+                        '3': ['-optimize+'],
+                        's': ['-optimize+'],
+                        }  # type: T.Dict[str, T.List[str]]
+
+
+class CsCompiler(BasicLinkerIsCompilerMixin, Compiler):
+
+    language = 'cs'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 info: 'MachineInfo', runner: T.Optional[str] = None):
+        super().__init__([], exelist, version, for_machine, info)
+        self.runner = runner
+
+    @classmethod
+    def get_display_language(cls) -> str:
+        return 'C sharp'
+
+    def get_always_args(self) -> T.List[str]:
+        return ['/nologo']
+
+    def get_linker_always_args(self) -> T.List[str]:
+        return ['/nologo']
+
+    def get_output_args(self, fname: str) -> T.List[str]:
+        return ['-out:' + fname]
+
+    def get_link_args(self, fname: str) -> T.List[str]:
+        return ['-r:' + fname]
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['-warnaserror']
+
+    def get_pic_args(self) -> T.List[str]:
+        return []
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-L':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+            if i[:5] == '-lib:':
+                parameter_list[idx] = i[:5] + os.path.normpath(os.path.join(build_dir, i[5:]))
+
+        return parameter_list
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        return []
+
+    def get_pch_name(self, header_name: str) -> str:
+        return ''
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        src = 'sanity.cs'
+        obj = 'sanity.exe'
+        source_name = os.path.join(work_dir, src)
+        with open(source_name, 'w', encoding='utf-8') as ofile:
+            ofile.write(textwrap.dedent('''
+                public class Sanity {
+                    static public void Main () {
+                    }
+                }
+                '''))
+        pc = subprocess.Popen(self.exelist + self.get_always_args() + [src], cwd=work_dir)
+        pc.wait()
+        if pc.returncode != 0:
+            raise EnvironmentException('C# compiler %s can not compile programs.' % self.name_string())
+        if self.runner:
+            cmdlist = [self.runner, obj]
+        else:
+            cmdlist = [os.path.join(work_dir, obj)]
+        pe = subprocess.Popen(cmdlist, cwd=work_dir)
+        pe.wait()
+        if pe.returncode != 0:
+            raise EnvironmentException('Executables created by Mono compiler %s are not runnable.' % self.name_string())
+
+    def needs_static_linker(self) -> bool:
+        return False
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return mono_buildtype_args[buildtype]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return ['-debug'] if is_debug else []
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return cs_optimization_args[optimization_level]
+
+
+class MonoCompiler(CsCompiler):
+
+    id = 'mono'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 info: 'MachineInfo'):
+        super().__init__(exelist, version, for_machine, info, runner='mono')
+
+    def rsp_file_syntax(self) -> 'RSPFileSyntax':
+        return RSPFileSyntax.GCC
+
+
+class VisualStudioCsCompiler(CsCompiler):
+
+    id = 'csc'
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        res = mono_buildtype_args[buildtype]
+        if not self.info.is_windows():
+            tmp = []
+            for flag in res:
+                if flag == '-debug':
+                    flag = '-debug:portable'
+                tmp.append(flag)
+            res = tmp
+        return res
+
+    def rsp_file_syntax(self) -> 'RSPFileSyntax':
+        return RSPFileSyntax.MSVC
diff --git a/mesonbuild/compilers/cuda.py b/mesonbuild/compilers/cuda.py
new file mode 100644
index 0000000..d008d0c
--- /dev/null
+++ b/mesonbuild/compilers/cuda.py
@@ -0,0 +1,791 @@
+# Copyright 2012-2017 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import enum
+import os.path
+import string
+import typing as T
+
+from .. import coredata
+from .. import mlog
+from ..mesonlib import (
+    EnvironmentException, Popen_safe, OptionOverrideProxy,
+    is_windows, LibType, OptionKey, version_compare,
+)
+from .compilers import (Compiler, cuda_buildtype_args, cuda_optimization_args,
+                        cuda_debug_args)
+
+if T.TYPE_CHECKING:
+    from .compilers import CompileCheckMode
+    from ..build import BuildTarget
+    from ..coredata import MutableKeyedOptionDictType, KeyedOptionDictType
+    from ..dependencies import Dependency
+    from ..environment import Environment  # noqa: F401
+    from ..envconfig import MachineInfo
+    from ..linkers import DynamicLinker
+    from ..mesonlib import MachineChoice
+    from ..programs import ExternalProgram
+
+
+class _Phase(enum.Enum):
+
+    COMPILER = 'compiler'
+    LINKER = 'linker'
+
+
+class CudaCompiler(Compiler):
+
+    LINKER_PREFIX = '-Xlinker='
+    language = 'cuda'
+
+    # NVCC flags taking no arguments.
+    _FLAG_PASSTHRU_NOARGS = {
+        # NVCC --long-option,                   NVCC -short-option              CUDA Toolkit 11.2.1 Reference
+        '--objdir-as-tempdir',                  '-objtemp',                     # 4.2.1.2
+        '--generate-dependency-targets',        '-MP',                          # 4.2.1.12
+        '--allow-unsupported-compiler',         '-allow-unsupported-compiler',  # 4.2.1.14
+        '--link',                                                               # 4.2.2.1
+        '--lib',                                '-lib',                         # 4.2.2.2
+        '--device-link',                        '-dlink',                       # 4.2.2.3
+        '--device-c',                           '-dc',                          # 4.2.2.4
+        '--device-w',                           '-dw',                          # 4.2.2.5
+        '--cuda',                               '-cuda',                        # 4.2.2.6
+        '--compile',                            '-c',                           # 4.2.2.7
+        '--fatbin',                             '-fatbin',                      # 4.2.2.8
+        '--cubin',                              '-cubin',                       # 4.2.2.9
+        '--ptx',                                '-ptx',                         # 4.2.2.10
+        '--preprocess',                         '-E',                           # 4.2.2.11
+        '--generate-dependencies',              '-M',                           # 4.2.2.12
+        '--generate-nonsystem-dependencies',    '-MM',                          # 4.2.2.13
+        '--generate-dependencies-with-compile', '-MD',                          # 4.2.2.14
+        '--generate-nonsystem-dependencies-with-compile', '-MMD',               # 4.2.2.15
+        '--run',                                                                # 4.2.2.16
+        '--profile',                            '-pg',                          # 4.2.3.1
+        '--debug',                              '-g',                           # 4.2.3.2
+        '--device-debug',                       '-G',                           # 4.2.3.3
+        '--extensible-whole-program',           '-ewp',                         # 4.2.3.4
+        '--generate-line-info',                 '-lineinfo',                    # 4.2.3.5
+        '--dlink-time-opt',                     '-dlto',                        # 4.2.3.8
+        '--no-exceptions',                      '-noeh',                        # 4.2.3.11
+        '--shared',                             '-shared',                      # 4.2.3.12
+        '--no-host-device-initializer-list',    '-nohdinitlist',                # 4.2.3.15
+        '--expt-relaxed-constexpr',             '-expt-relaxed-constexpr',      # 4.2.3.16
+        '--extended-lambda',                    '-extended-lambda',             # 4.2.3.17
+        '--expt-extended-lambda',               '-expt-extended-lambda',        # 4.2.3.18
+        '--m32',                                '-m32',                         # 4.2.3.20
+        '--m64',                                '-m64',                         # 4.2.3.21
+        '--forward-unknown-to-host-compiler',   '-forward-unknown-to-host-compiler', # 4.2.5.1
+        '--forward-unknown-to-host-linker',     '-forward-unknown-to-host-linker',   # 4.2.5.2
+        '--dont-use-profile',                   '-noprof',                      # 4.2.5.3
+        '--dryrun',                             '-dryrun',                      # 4.2.5.5
+        '--verbose',                            '-v',                           # 4.2.5.6
+        '--keep',                               '-keep',                        # 4.2.5.7
+        '--save-temps',                         '-save-temps',                  # 4.2.5.9
+        '--clean-targets',                      '-clean',                       # 4.2.5.10
+        '--no-align-double',                                                    # 4.2.5.16
+        '--no-device-link',                     '-nodlink',                     # 4.2.5.17
+        '--allow-unsupported-compiler',         '-allow-unsupported-compiler',  # 4.2.5.18
+        '--use_fast_math',                      '-use_fast_math',               # 4.2.7.7
+        '--extra-device-vectorization',         '-extra-device-vectorization',  # 4.2.7.12
+        '--compile-as-tools-patch',             '-astoolspatch',                # 4.2.7.13
+        '--keep-device-functions',              '-keep-device-functions',       # 4.2.7.14
+        '--disable-warnings',                   '-w',                           # 4.2.8.1
+        '--source-in-ptx',                      '-src-in-ptx',                  # 4.2.8.2
+        '--restrict',                           '-restrict',                    # 4.2.8.3
+        '--Wno-deprecated-gpu-targets',         '-Wno-deprecated-gpu-targets',  # 4.2.8.4
+        '--Wno-deprecated-declarations',        '-Wno-deprecated-declarations', # 4.2.8.5
+        '--Wreorder',                           '-Wreorder',                    # 4.2.8.6
+        '--Wdefault-stream-launch',             '-Wdefault-stream-launch',      # 4.2.8.7
+        '--Wext-lambda-captures-this',          '-Wext-lambda-captures-this',   # 4.2.8.8
+        '--display-error-number',               '-err-no',                      # 4.2.8.10
+        '--resource-usage',                     '-res-usage',                   # 4.2.8.14
+        '--help',                               '-h',                           # 4.2.8.15
+        '--version',                            '-V',                           # 4.2.8.16
+        '--list-gpu-code',                      '-code-ls',                     # 4.2.8.20
+        '--list-gpu-arch',                      '-arch-ls',                     # 4.2.8.21
+    }
+    # Dictionary of NVCC flags taking either one argument or a comma-separated list.
+    # Maps --long to -short options, because the short options are more GCC-like.
+    _FLAG_LONG2SHORT_WITHARGS = {
+        '--output-file':                        '-o',                           # 4.2.1.1
+        '--pre-include':                        '-include',                     # 4.2.1.3
+        '--library':                            '-l',                           # 4.2.1.4
+        '--define-macro':                       '-D',                           # 4.2.1.5
+        '--undefine-macro':                     '-U',                           # 4.2.1.6
+        '--include-path':                       '-I',                           # 4.2.1.7
+        '--system-include':                     '-isystem',                     # 4.2.1.8
+        '--library-path':                       '-L',                           # 4.2.1.9
+        '--output-directory':                   '-odir',                        # 4.2.1.10
+        '--dependency-output':                  '-MF',                          # 4.2.1.11
+        '--compiler-bindir':                    '-ccbin',                       # 4.2.1.13
+        '--archiver-binary':                    '-arbin',                       # 4.2.1.15
+        '--cudart':                             '-cudart',                      # 4.2.1.16
+        '--cudadevrt':                          '-cudadevrt',                   # 4.2.1.17
+        '--libdevice-directory':                '-ldir',                        # 4.2.1.18
+        '--target-directory':                   '-target-dir',                  # 4.2.1.19
+        '--optimization-info':                  '-opt-info',                    # 4.2.3.6
+        '--optimize':                           '-O',                           # 4.2.3.7
+        '--ftemplate-backtrace-limit':          '-ftemplate-backtrace-limit',   # 4.2.3.9
+        '--ftemplate-depth':                    '-ftemplate-depth',             # 4.2.3.10
+        '--x':                                  '-x',                           # 4.2.3.13
+        '--std':                                '-std',                         # 4.2.3.14
+        '--machine':                            '-m',                           # 4.2.3.19
+        '--compiler-options':                   '-Xcompiler',                   # 4.2.4.1
+        '--linker-options':                     '-Xlinker',                     # 4.2.4.2
+        '--archive-options':                    '-Xarchive',                    # 4.2.4.3
+        '--ptxas-options':                      '-Xptxas',                      # 4.2.4.4
+        '--nvlink-options':                     '-Xnvlink',                     # 4.2.4.5
+        '--threads':                            '-t',                           # 4.2.5.4
+        '--keep-dir':                           '-keep-dir',                    # 4.2.5.8
+        '--run-args':                           '-run-args',                    # 4.2.5.11
+        '--input-drive-prefix':                 '-idp',                         # 4.2.5.12
+        '--dependency-drive-prefix':            '-ddp',                         # 4.2.5.13
+        '--drive-prefix':                       '-dp',                          # 4.2.5.14
+        '--dependency-target-name':             '-MT',                          # 4.2.5.15
+        '--default-stream':                     '-default-stream',              # 4.2.6.1
+        '--gpu-architecture':                   '-arch',                        # 4.2.7.1
+        '--gpu-code':                           '-code',                        # 4.2.7.2
+        '--generate-code':                      '-gencode',                     # 4.2.7.3
+        '--relocatable-device-code':            '-rdc',                         # 4.2.7.4
+        '--entries':                            '-e',                           # 4.2.7.5
+        '--maxrregcount':                       '-maxrregcount',                # 4.2.7.6
+        '--ftz':                                '-ftz',                         # 4.2.7.8
+        '--prec-div':                           '-prec-div',                    # 4.2.7.9
+        '--prec-sqrt':                          '-prec-sqrt',                   # 4.2.7.10
+        '--fmad':                               '-fmad',                        # 4.2.7.11
+        '--Werror':                             '-Werror',                      # 4.2.8.9
+        '--diag-error':                         '-diag-error',                  # 4.2.8.11
+        '--diag-suppress':                      '-diag-suppress',               # 4.2.8.12
+        '--diag-warn':                          '-diag-warn',                   # 4.2.8.13
+        '--options-file':                       '-optf',                        # 4.2.8.17
+        '--time':                               '-time',                        # 4.2.8.18
+        '--qpp-config':                         '-qpp-config',                  # 4.2.8.19
+    }
+    # Reverse map -short to --long options.
+    _FLAG_SHORT2LONG_WITHARGS = {v: k for k, v in _FLAG_LONG2SHORT_WITHARGS.items()}
+
+    id = 'nvcc'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, exe_wrapper: T.Optional['ExternalProgram'],
+                 host_compiler: Compiler, info: 'MachineInfo',
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        super().__init__(ccache, exelist, version, for_machine, info, linker=linker, full_version=full_version, is_cross=is_cross)
+        self.exe_wrapper = exe_wrapper
+        self.host_compiler = host_compiler
+        self.base_options = host_compiler.base_options
+        self.warn_args = {level: self._to_host_flags(flags) for level, flags in host_compiler.warn_args.items()}
+
+    @classmethod
+    def _shield_nvcc_list_arg(cls, arg: str, listmode: bool = True) -> str:
+        r"""
+        Shield an argument against both splitting by NVCC's list-argument
+        parse logic, and interpretation by any shell.
+
+        NVCC seems to consider every comma , that is neither escaped by \ nor inside
+        a double-quoted string a split-point. Single-quotes do not provide protection
+        against splitting; In fact, after splitting they are \-escaped. Unfortunately,
+        double-quotes don't protect against shell expansion. What follows is a
+        complex dance to accommodate everybody.
+        """
+
+        SQ = "'"
+        DQ = '"'
+        CM = ","
+        BS = "\\"
+        DQSQ = DQ+SQ+DQ
+        quotable = set(string.whitespace+'"$`\\')
+
+        if CM not in arg or not listmode:
+            if SQ not in arg:
+                # If any of the special characters "$`\ or whitespace are present, single-quote.
+                # Otherwise return bare.
+                if set(arg).intersection(quotable):
+                    return SQ+arg+SQ
+                else:
+                    return arg # Easy case: no splits, no quoting.
+            else:
+                # There are single quotes. Double-quote them, and single-quote the
+                # strings between them.
+                l = [cls._shield_nvcc_list_arg(s) for s in arg.split(SQ)]
+                l = sum([[s, DQSQ] for s in l][:-1], [])  # Interleave l with DQSQs
+                return ''.join(l)
+        else:
+            # A comma is present, and list mode was active.
+            # We apply (what we guess is) the (primitive) NVCC splitting rule:
+            l = ['']
+            instring = False
+            argit = iter(arg)
+            for c in argit:
+                if c == CM and not instring:
+                    l.append('')
+                elif c == DQ:
+                    l[-1] += c
+                    instring = not instring
+                elif c == BS:
+                    try:
+                        l[-1] += next(argit)
+                    except StopIteration:
+                        break
+                else:
+                    l[-1] += c
+
+            # Shield individual strings, without listmode, then return them with
+            # escaped commas between them.
+            l = [cls._shield_nvcc_list_arg(s, listmode=False) for s in l]
+            return r'\,'.join(l)
+
+    @classmethod
+    def _merge_flags(cls, flags: T.List[str]) -> T.List[str]:
+        r"""
+        The flags to NVCC gets exceedingly verbose and unreadable when too many of them
+        are shielded with -Xcompiler. Merge consecutive -Xcompiler-wrapped arguments
+        into one.
+        """
+        if len(flags) <= 1:
+            return flags
+        flagit = iter(flags)
+        xflags = []
+
+        def is_xcompiler_flag_isolated(flag: str) -> bool:
+            return flag == '-Xcompiler'
+
+        def is_xcompiler_flag_glued(flag: str) -> bool:
+            return flag.startswith('-Xcompiler=')
+
+        def is_xcompiler_flag(flag: str) -> bool:
+            return is_xcompiler_flag_isolated(flag) or is_xcompiler_flag_glued(flag)
+
+        def get_xcompiler_val(flag: str, flagit: T.Iterator[str]) -> str:
+            if is_xcompiler_flag_glued(flag):
+                return flag[len('-Xcompiler='):]
+            else:
+                try:
+                    return next(flagit)
+                except StopIteration:
+                    return ""
+
+        ingroup = False
+        for flag in flagit:
+            if not is_xcompiler_flag(flag):
+                ingroup = False
+                xflags.append(flag)
+            elif ingroup:
+                xflags[-1] += ','
+                xflags[-1] += get_xcompiler_val(flag, flagit)
+            elif is_xcompiler_flag_isolated(flag):
+                ingroup = True
+                xflags.append(flag)
+                xflags.append(get_xcompiler_val(flag, flagit))
+            elif is_xcompiler_flag_glued(flag):
+                ingroup = True
+                xflags.append(flag)
+            else:
+                raise ValueError("-Xcompiler flag merging failed, unknown argument form!")
+        return xflags
+
+    def _to_host_flags(self, flags: T.List[str], phase: _Phase = _Phase.COMPILER) -> T.List[str]:
+        """
+        Translate generic "GCC-speak" plus particular "NVCC-speak" flags to NVCC flags.
+
+        NVCC's "short" flags have broad similarities to the GCC standard, but have
+        gratuitous, irritating differences.
+        """
+
+        xflags = []
+        flagit = iter(flags)
+
+        for flag in flagit:
+            # The CUDA Toolkit Documentation, in 4.1. Command Option Types and Notation,
+            # specifies that NVCC does not parse the standard flags as GCC does. It has
+            # its own strategy, to wit:
+            #
+            #     nvcc recognizes three types of command options: boolean options, single
+            #     value options, and list options.
+            #
+            #     Boolean options do not have an argument; they are either specified on a
+            #     command line or not. Single value options must be specified at most once,
+            #     and list options may be repeated. Examples of each of these option types
+            #     are, respectively: --verbose (switch to verbose mode), --output-file
+            #     (specify output file), and --include-path (specify include path).
+            #
+            #     Single value options and list options must have arguments, which must
+            #     follow the name of the option itself by either one of more spaces or an
+            #     equals character. When a one-character short name such as -I, -l, and -L
+            #     is used, the value of the option may also immediately follow the option
+            #     itself without being separated by spaces or an equal character. The
+            #     individual values of list options may be separated by commas in a single
+            #     instance of the option, or the option may be repeated, or any
+            #     combination of these two cases.
+            #
+            # One strange consequence of this choice is that directory and filenames that
+            # contain commas (',') cannot be passed to NVCC (at least, not as easily as
+            # in GCC). Another strange consequence is that it is legal to supply flags
+            # such as
+            #
+            #     -lpthread,rt,dl,util
+            #     -l pthread,rt,dl,util
+            #     -l=pthread,rt,dl,util
+            #
+            # and each of the above alternatives is equivalent to GCC-speak
+            #
+            #     -lpthread -lrt -ldl -lutil
+            #     -l pthread -l rt -l dl -l util
+            #     -l=pthread -l=rt -l=dl -l=util
+            #
+            # *With the exception of commas in the name*, GCC-speak for these list flags
+            # is a strict subset of NVCC-speak, so we passthrough those flags.
+            #
+            # The -D macro-define flag is documented as somehow shielding commas from
+            # splitting a definition. Balanced parentheses, braces and single-quotes
+            # around the comma are not sufficient, but balanced double-quotes are. The
+            # shielding appears to work with -l, -I, -L flags as well, for instance.
+            #
+            # Since our goal is to replicate GCC-speak as much as possible, we check for
+            # commas in all list-arguments and shield them with double-quotes. We make
+            # an exception for -D (where this would be value-changing) and -U (because
+            # it isn't possible to define a macro with a comma in the name).
+
+            if flag in self._FLAG_PASSTHRU_NOARGS:
+                xflags.append(flag)
+                continue
+
+            # Handle breakup of flag-values into a flag-part and value-part.
+            if flag[:1] not in '-/':
+                # This is not a flag. It's probably a file input. Pass it through.
+                xflags.append(flag)
+                continue
+            elif flag[:1] == '/':
+                # This is ambiguously either an MVSC-style /switch or an absolute path
+                # to a file. For some magical reason the following works acceptably in
+                # both cases.
+                wrap = '"' if ',' in flag else ''
+                xflags.append(f'-X{phase.value}={wrap}{flag}{wrap}')
+                continue
+            elif len(flag) >= 2 and flag[0] == '-' and flag[1] in 'IDULlmOxmte':
+                # This is a single-letter short option. These options (with the
+                # exception of -o) are allowed to receive their argument with neither
+                # space nor = sign before them. Detect and separate them in that event.
+                if flag[2:3] == '':            # -I something
+                    try:
+                        val = next(flagit)
+                    except StopIteration:
+                        pass
+                elif flag[2:3] == '=':           # -I=something
+                    val = flag[3:]
+                else:                            # -Isomething
+                    val = flag[2:]
+                flag = flag[:2]                  # -I
+            elif flag in self._FLAG_LONG2SHORT_WITHARGS or \
+                    flag in self._FLAG_SHORT2LONG_WITHARGS:
+                # This is either -o or a multi-letter flag, and it is receiving its
+                # value isolated.
+                try:
+                    val = next(flagit)           # -o something
+                except StopIteration:
+                    pass
+            elif flag.split('=', 1)[0] in self._FLAG_LONG2SHORT_WITHARGS or \
+                    flag.split('=', 1)[0] in self._FLAG_SHORT2LONG_WITHARGS:
+                # This is either -o or a multi-letter flag, and it is receiving its
+                # value after an = sign.
+                flag, val = flag.split('=', 1)    # -o=something
+            # Some dependencies (e.g., BoostDependency) add unspaced "-isystem/usr/include" arguments
+            elif flag.startswith('-isystem'):
+                val = flag[8:].strip()
+                flag = flag[:8]
+            else:
+                # This is a flag, and it's foreign to NVCC.
+                #
+                # We do not know whether this GCC-speak flag takes an isolated
+                # argument. Assuming it does not (the vast majority indeed don't),
+                # wrap this argument in an -Xcompiler flag and send it down to NVCC.
+                if flag == '-ffast-math':
+                    xflags.append('-use_fast_math')
+                    xflags.append('-Xcompiler='+flag)
+                elif flag == '-fno-fast-math':
+                    xflags.append('-ftz=false')
+                    xflags.append('-prec-div=true')
+                    xflags.append('-prec-sqrt=true')
+                    xflags.append('-Xcompiler='+flag)
+                elif flag == '-freciprocal-math':
+                    xflags.append('-prec-div=false')
+                    xflags.append('-Xcompiler='+flag)
+                elif flag == '-fno-reciprocal-math':
+                    xflags.append('-prec-div=true')
+                    xflags.append('-Xcompiler='+flag)
+                else:
+                    xflags.append('-Xcompiler='+self._shield_nvcc_list_arg(flag))
+                    # The above should securely handle GCC's -Wl, -Wa, -Wp, arguments.
+                continue
+
+            assert val is not None  # Should only trip if there is a missing argument.
+
+            # Take care of the various NVCC-supported flags that need special handling.
+            flag = self._FLAG_LONG2SHORT_WITHARGS.get(flag, flag)
+
+            if flag in {'-include', '-isystem', '-I', '-L', '-l'}:
+                # These flags are known to GCC, but list-valued in NVCC. They potentially
+                # require double-quoting to prevent NVCC interpreting the flags as lists
+                # when GCC would not have done so.
+                #
+                # We avoid doing this quoting for -D to avoid redefining macros and for
+                # -U because it isn't possible to define a macro with a comma in the name.
+                # -U with comma arguments is impossible in GCC-speak (and thus unambiguous
+                #in NVCC-speak, albeit unportable).
+                if len(flag) == 2:
+                    xflags.append(flag+self._shield_nvcc_list_arg(val))
+                elif flag == '-isystem' and val in self.host_compiler.get_default_include_dirs():
+                    # like GnuLikeCompiler, we have to filter out include directories specified
+                    # with -isystem that overlap with the host compiler's search path
+                    pass
+                else:
+                    xflags.append(flag)
+                    xflags.append(self._shield_nvcc_list_arg(val))
+            elif flag == '-O':
+                # Handle optimization levels GCC knows about that NVCC does not.
+                if val == 'fast':
+                    xflags.append('-O3')
+                    xflags.append('-use_fast_math')
+                    xflags.append('-Xcompiler')
+                    xflags.append(flag+val)
+                elif val in {'s', 'g', 'z'}:
+                    xflags.append('-Xcompiler')
+                    xflags.append(flag+val)
+                else:
+                    xflags.append(flag+val)
+            elif flag in {'-D', '-U', '-m', '-t'}:
+                xflags.append(flag+val)       # For style, keep glued.
+            elif flag in {'-std'}:
+                xflags.append(flag+'='+val)   # For style, keep glued.
+            else:
+                xflags.append(flag)
+                xflags.append(val)
+
+        return self._merge_flags(xflags)
+
+    def needs_static_linker(self) -> bool:
+        return False
+
+    def thread_link_flags(self, environment: 'Environment') -> T.List[str]:
+        return self._to_host_flags(self.host_compiler.thread_link_flags(environment), _Phase.LINKER)
+
+    def sanity_check(self, work_dir: str, env: 'Environment') -> None:
+        mlog.debug('Sanity testing ' + self.get_display_language() + ' compiler:', ' '.join(self.exelist))
+        mlog.debug('Is cross compiler: %s.' % str(self.is_cross))
+
+        sname = 'sanitycheckcuda.cu'
+        code = r'''
+        #include <cuda_runtime.h>
+        #include <stdio.h>
+
+        __global__ void kernel (void) {}
+
+        int main(void){
+            struct cudaDeviceProp prop;
+            int count, i;
+            cudaError_t ret = cudaGetDeviceCount(&count);
+            if(ret != cudaSuccess){
+                fprintf(stderr, "%d\n", (int)ret);
+            }else{
+                for(i=0;i<count;i++){
+                    if(cudaGetDeviceProperties(&prop, i) == cudaSuccess){
+                        fprintf(stdout, "%d.%d\n", prop.major, prop.minor);
+                    }
+                }
+            }
+            fflush(stderr);
+            fflush(stdout);
+            return 0;
+        }
+        '''
+        binname = sname.rsplit('.', 1)[0]
+        binname += '_cross' if self.is_cross else ''
+        source_name = os.path.join(work_dir, sname)
+        binary_name = os.path.join(work_dir, binname + '.exe')
+        with open(source_name, 'w', encoding='utf-8') as ofile:
+            ofile.write(code)
+
+        # The Sanity Test for CUDA language will serve as both a sanity test
+        # and a native-build GPU architecture detection test, useful later.
+        #
+        # For this second purpose, NVCC has very handy flags, --run and
+        # --run-args, that allow one to run an application with the
+        # environment set up properly. Of course, this only works for native
+        # builds; For cross builds we must still use the exe_wrapper (if any).
+        self.detected_cc = ''
+        flags = []
+
+        # Disable warnings, compile with statically-linked runtime for minimum
+        # reliance on the system.
+        flags += ['-w', '-cudart', 'static', source_name]
+
+        # Use the -ccbin option, if available, even during sanity checking.
+        # Otherwise, on systems where CUDA does not support the default compiler,
+        # NVCC becomes unusable.
+        flags += self.get_ccbin_args(env.coredata.options)
+
+        # If cross-compiling, we can't run the sanity check, only compile it.
+        if self.is_cross and self.exe_wrapper is None:
+            # Linking cross built apps is painful. You can't really
+            # tell if you should use -nostdlib or not and for example
+            # on OSX the compiler binary is the same but you need
+            # a ton of compiler flags to differentiate between
+            # arm and x86_64. So just compile.
+            flags += self.get_compile_only_args()
+        flags += self.get_output_args(binary_name)
+
+        # Compile sanity check
+        cmdlist = self.exelist + flags
+        mlog.debug('Sanity check compiler command line: ', ' '.join(cmdlist))
+        pc, stdo, stde = Popen_safe(cmdlist, cwd=work_dir)
+        mlog.debug('Sanity check compile stdout: ')
+        mlog.debug(stdo)
+        mlog.debug('-----\nSanity check compile stderr:')
+        mlog.debug(stde)
+        mlog.debug('-----')
+        if pc.returncode != 0:
+            raise EnvironmentException(f'Compiler {self.name_string()} can not compile programs.')
+
+        # Run sanity check (if possible)
+        if self.is_cross:
+            if self.exe_wrapper is None:
+                return
+            else:
+                cmdlist = self.exe_wrapper.get_command() + [binary_name]
+        else:
+            cmdlist = self.exelist + ['--run', '"' + binary_name + '"']
+        mlog.debug('Sanity check run command line: ', ' '.join(cmdlist))
+        pe, stdo, stde = Popen_safe(cmdlist, cwd=work_dir)
+        mlog.debug('Sanity check run stdout: ')
+        mlog.debug(stdo)
+        mlog.debug('-----\nSanity check run stderr:')
+        mlog.debug(stde)
+        mlog.debug('-----')
+        pe.wait()
+        if pe.returncode != 0:
+            raise EnvironmentException(f'Executables created by {self.language} compiler {self.name_string()} are not runnable.')
+
+        # Interpret the result of the sanity test.
+        # As mentioned above, it is not only a sanity test but also a GPU
+        # architecture detection test.
+        if stde == '':
+            self.detected_cc = stdo
+        else:
+            mlog.debug('cudaGetDeviceCount() returned ' + stde)
+
+    def has_header_symbol(self, hname: str, symbol: str, prefix: str,
+                          env: 'Environment', *,
+                          extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+                          dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        if extra_args is None:
+            extra_args = []
+        fargs = {'prefix': prefix, 'header': hname, 'symbol': symbol}
+        # Check if it's a C-like symbol
+        t = '''{prefix}
+        #include <{header}>
+        int main(void) {{
+            /* If it's not defined as a macro, try to use as a symbol */
+            #ifndef {symbol}
+                {symbol};
+            #endif
+            return 0;
+        }}'''
+        found, cached = self.compiles(t.format_map(fargs), env, extra_args=extra_args, dependencies=dependencies)
+        if found:
+            return True, cached
+        # Check if it's a class or a template
+        t = '''{prefix}
+        #include <{header}>
+        using {symbol};
+        int main(void) {{
+            return 0;
+        }}'''
+        return self.compiles(t.format_map(fargs), env, extra_args=extra_args, dependencies=dependencies)
+
+    _CPP14_VERSION = '>=9.0'
+    _CPP17_VERSION = '>=11.0'
+    _CPP20_VERSION = '>=12.0'
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = super().get_options()
+        std_key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        ccbindir_key = OptionKey('ccbindir', machine=self.for_machine, lang=self.language)
+
+        cpp_stds = ['none', 'c++03', 'c++11']
+        if version_compare(self.version, self._CPP14_VERSION):
+            cpp_stds += ['c++14']
+        if version_compare(self.version, self._CPP17_VERSION):
+            cpp_stds += ['c++17']
+        if version_compare(self.version, self._CPP20_VERSION):
+            cpp_stds += ['c++20']
+
+        opts.update({
+            std_key:      coredata.UserComboOption('C++ language standard to use with CUDA',
+                                                   cpp_stds, 'none'),
+            ccbindir_key: coredata.UserStringOption('CUDA non-default toolchain directory to use (-ccbin)',
+                                                    ''),
+        })
+        return opts
+
+    def _to_host_compiler_options(self, options: 'KeyedOptionDictType') -> 'KeyedOptionDictType':
+        """
+        Convert an NVCC Option set to a host compiler's option set.
+        """
+
+        # We must strip the -std option from the host compiler option set, as NVCC has
+        # its own -std flag that may not agree with the host compiler's.
+        host_options = {key: options.get(key, opt) for key, opt in self.host_compiler.get_options().items()}
+        std_key = OptionKey('std', machine=self.for_machine, lang=self.host_compiler.language)
+        overrides = {std_key: 'none'}
+        return OptionOverrideProxy(overrides, host_options)
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = self.get_ccbin_args(options)
+        # On Windows, the version of the C++ standard used by nvcc is dictated by
+        # the combination of CUDA version and MSVC version; the --std= is thus ignored
+        # and attempting to use it will result in a warning: https://stackoverflow.com/a/51272091/741027
+        if not is_windows():
+            key = OptionKey('std', machine=self.for_machine, lang=self.language)
+            std = options[key]
+            if std.value != 'none':
+                args.append('--std=' + std.value)
+
+        return args + self._to_host_flags(self.host_compiler.get_option_compile_args(self._to_host_compiler_options(options)))
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = self.get_ccbin_args(options)
+        return args + self._to_host_flags(self.host_compiler.get_option_link_args(self._to_host_compiler_options(options)), _Phase.LINKER)
+
+    def get_soname_args(self, env: 'Environment', prefix: str, shlib_name: str,
+                        suffix: str, soversion: str,
+                        darwin_versions: T.Tuple[str, str]) -> T.List[str]:
+        return self._to_host_flags(self.host_compiler.get_soname_args(
+            env, prefix, shlib_name, suffix, soversion, darwin_versions), _Phase.LINKER)
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return ['-c']
+
+    def get_no_optimization_args(self) -> T.List[str]:
+        return ['-O0']
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        # alternatively, consider simply redirecting this to the host compiler, which would
+        # give us more control over options like "optimize for space" (which nvcc doesn't support):
+        # return self._to_host_flags(self.host_compiler.get_optimization_args(optimization_level))
+        return cuda_optimization_args[optimization_level]
+
+    def sanitizer_compile_args(self, value: str) -> T.List[str]:
+        return self._to_host_flags(self.host_compiler.sanitizer_compile_args(value))
+
+    def sanitizer_link_args(self, value: str) -> T.List[str]:
+        return self._to_host_flags(self.host_compiler.sanitizer_link_args(value))
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return cuda_debug_args[is_debug]
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['-Werror=cross-execution-space-call,deprecated-declarations,reorder']
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        return self.warn_args[level]
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        # nvcc doesn't support msvc's "Edit and Continue" PDB format; "downgrade" to
+        # a regular PDB to avoid cl's warning to that effect (D9025 : overriding '/ZI' with '/Zi')
+        host_args = ['/Zi' if arg == '/ZI' else arg for arg in self.host_compiler.get_buildtype_args(buildtype)]
+        return cuda_buildtype_args[buildtype] + self._to_host_flags(host_args)
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if path == '':
+            path = '.'
+        return ['-isystem=' + path] if is_system else ['-I' + path]
+
+    def get_compile_debugfile_args(self, rel_obj: str, pch: bool = False) -> T.List[str]:
+        return self._to_host_flags(self.host_compiler.get_compile_debugfile_args(rel_obj, pch))
+
+    def get_link_debugfile_args(self, targetfile: str) -> T.List[str]:
+        return self._to_host_flags(self.host_compiler.get_link_debugfile_args(targetfile), _Phase.LINKER)
+
+    def get_depfile_suffix(self) -> str:
+        return 'd'
+
+    def get_buildtype_linker_args(self, buildtype: str) -> T.List[str]:
+        return self._to_host_flags(self.host_compiler.get_buildtype_linker_args(buildtype), _Phase.LINKER)
+
+    def build_rpath_args(self, env: 'Environment', build_dir: str, from_dir: str,
+                         rpath_paths: T.Tuple[str, ...], build_rpath: str,
+                         install_rpath: str) -> T.Tuple[T.List[str], T.Set[bytes]]:
+        (rpath_args, rpath_dirs_to_remove) = self.host_compiler.build_rpath_args(
+            env, build_dir, from_dir, rpath_paths, build_rpath, install_rpath)
+        return (self._to_host_flags(rpath_args, _Phase.LINKER), rpath_dirs_to_remove)
+
+    def linker_to_compiler_args(self, args: T.List[str]) -> T.List[str]:
+        return args
+
+    def get_pic_args(self) -> T.List[str]:
+        return self._to_host_flags(self.host_compiler.get_pic_args())
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        return []
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return ['-o', target]
+
+    def get_std_exe_link_args(self) -> T.List[str]:
+        return self._to_host_flags(self.host_compiler.get_std_exe_link_args(), _Phase.LINKER)
+
+    def find_library(self, libname: str, env: 'Environment', extra_dirs: T.List[str],
+                     libtype: LibType = LibType.PREFER_SHARED) -> T.Optional[T.List[str]]:
+        return ['-l' + libname] # FIXME
+
+    def get_crt_compile_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        return self._to_host_flags(self.host_compiler.get_crt_compile_args(crt_val, buildtype))
+
+    def get_crt_link_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        # nvcc defaults to static, release version of msvc runtime and provides no
+        # native option to override it; override it with /NODEFAULTLIB
+        host_link_arg_overrides = []
+        host_crt_compile_args = self.host_compiler.get_crt_compile_args(crt_val, buildtype)
+        if any(arg in {'/MDd', '/MD', '/MTd'} for arg in host_crt_compile_args):
+            host_link_arg_overrides += ['/NODEFAULTLIB:LIBCMT.lib']
+        return self._to_host_flags(host_link_arg_overrides + self.host_compiler.get_crt_link_args(crt_val, buildtype), _Phase.LINKER)
+
+    def get_target_link_args(self, target: 'BuildTarget') -> T.List[str]:
+        return self._to_host_flags(super().get_target_link_args(target), _Phase.LINKER)
+
+    def get_dependency_compile_args(self, dep: 'Dependency') -> T.List[str]:
+        return self._to_host_flags(super().get_dependency_compile_args(dep))
+
+    def get_dependency_link_args(self, dep: 'Dependency') -> T.List[str]:
+        return self._to_host_flags(super().get_dependency_link_args(dep), _Phase.LINKER)
+
+    def get_ccbin_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        key = OptionKey('ccbindir', machine=self.for_machine, lang=self.language)
+        ccbindir = options[key].value
+        if isinstance(ccbindir, str) and ccbindir != '':
+            return [self._shield_nvcc_list_arg('-ccbin='+ccbindir, False)]
+        else:
+            return []
+
+    def get_profile_generate_args(self) -> T.List[str]:
+        return ['-Xcompiler=' + x for x in self.host_compiler.get_profile_generate_args()]
+
+    def get_profile_use_args(self) -> T.List[str]:
+        return ['-Xcompiler=' + x for x in self.host_compiler.get_profile_use_args()]
+
+    def get_disable_assert_args(self) -> T.List[str]:
+        return self.host_compiler.get_disable_assert_args()
diff --git a/mesonbuild/compilers/cython.py b/mesonbuild/compilers/cython.py
new file mode 100644
index 0000000..9bbfebe
--- /dev/null
+++ b/mesonbuild/compilers/cython.py
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: Apache-2.0
+# Copyright © 2021 Intel Corporation
+from __future__ import annotations
+
+"""Abstraction for Cython language compilers."""
+
+import typing as T
+
+from .. import coredata
+from ..mesonlib import EnvironmentException, OptionKey, version_compare
+from .compilers import Compiler
+
+if T.TYPE_CHECKING:
+    from ..coredata import MutableKeyedOptionDictType, KeyedOptionDictType
+    from ..environment import Environment
+
+
+class CythonCompiler(Compiler):
+
+    """Cython Compiler."""
+
+    language = 'cython'
+    id = 'cython'
+
+    def needs_static_linker(self) -> bool:
+        # We transpile into C, so we don't need any linker
+        return False
+
+    def get_always_args(self) -> T.List[str]:
+        return ['--fast-fail']
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['-Werror']
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return ['-o', outputname]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        # Cython doesn't have optimization levels itself, the underlying
+        # compiler might though
+        return []
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        if version_compare(self.version, '>=0.29.33'):
+            return ['-M']
+        return []
+
+    def get_depfile_suffix(self) -> str:
+        return 'dep'
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        code = 'print("hello world")'
+        with self.cached_compile(code, environment.coredata) as p:
+            if p.returncode != 0:
+                raise EnvironmentException(f'Cython compiler {self.id!r} cannot compile programs')
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        # Cython doesn't implement this, but Meson requires an implementation
+        return []
+
+    def get_pic_args(self) -> T.List[str]:
+        # We can lie here, it's fine
+        return []
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        new: T.List[str] = []
+        for i in parameter_list:
+            new.append(i)
+
+        return new
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = super().get_options()
+        opts.update({
+            OptionKey('version', machine=self.for_machine, lang=self.language): coredata.UserComboOption(
+                'Python version to target',
+                ['2', '3'],
+                '3',
+            ),
+            OptionKey('language', machine=self.for_machine, lang=self.language): coredata.UserComboOption(
+                'Output C or C++ files',
+                ['c', 'cpp'],
+                'c',
+            )
+        })
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args: T.List[str] = []
+        key = options[OptionKey('version', machine=self.for_machine, lang=self.language)]
+        args.append(f'-{key.value}')
+        lang = options[OptionKey('language', machine=self.for_machine, lang=self.language)]
+        if lang.value == 'cpp':
+            args.append('--cplus')
+        return args
diff --git a/mesonbuild/compilers/d.py b/mesonbuild/compilers/d.py
new file mode 100644
index 0000000..90c0498
--- /dev/null
+++ b/mesonbuild/compilers/d.py
@@ -0,0 +1,1022 @@
+# Copyright 2012-2022 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import os.path
+import re
+import subprocess
+import typing as T
+
+from .. import mesonlib
+from .. import mlog
+from ..arglist import CompilerArgs
+from ..linkers import RSPFileSyntax
+from ..mesonlib import (
+    EnvironmentException, version_compare, OptionKey, is_windows
+)
+
+from . import compilers
+from .compilers import (
+    d_dmd_buildtype_args,
+    d_gdc_buildtype_args,
+    d_ldc_buildtype_args,
+    clike_debug_args,
+    Compiler,
+    CompileCheckMode,
+)
+from .mixins.gnu import GnuCompiler
+from .mixins.gnu import gnu_common_warning_args
+
+if T.TYPE_CHECKING:
+    from ..dependencies import Dependency
+    from ..programs import ExternalProgram
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..linkers import DynamicLinker
+    from ..mesonlib import MachineChoice
+
+    CompilerMixinBase = Compiler
+else:
+    CompilerMixinBase = object
+
+d_feature_args = {'gcc':  {'unittest': '-funittest',
+                           'debug': '-fdebug',
+                           'version': '-fversion',
+                           'import_dir': '-J'
+                           },
+                  'llvm': {'unittest': '-unittest',
+                           'debug': '-d-debug',
+                           'version': '-d-version',
+                           'import_dir': '-J'
+                           },
+                  'dmd':  {'unittest': '-unittest',
+                           'debug': '-debug',
+                           'version': '-version',
+                           'import_dir': '-J'
+                           }
+                  }  # type: T.Dict[str, T.Dict[str, str]]
+
+ldc_optimization_args = {'plain': [],
+                         '0': [],
+                         'g': [],
+                         '1': ['-O1'],
+                         '2': ['-O2'],
+                         '3': ['-O3'],
+                         's': ['-Oz'],
+                         }  # type: T.Dict[str, T.List[str]]
+
+dmd_optimization_args = {'plain': [],
+                         '0': [],
+                         'g': [],
+                         '1': ['-O'],
+                         '2': ['-O'],
+                         '3': ['-O'],
+                         's': ['-O'],
+                         }  # type: T.Dict[str, T.List[str]]
+
+
+class DmdLikeCompilerMixin(CompilerMixinBase):
+
+    """Mixin class for DMD and LDC.
+
+    LDC has a number of DMD like arguments, and this class allows for code
+    sharing between them as makes sense.
+    """
+
+    def __init__(self, dmd_frontend_version: T.Optional[str]):
+        if dmd_frontend_version is None:
+            self._dmd_has_depfile = False
+        else:
+            # -makedeps switch introduced in 2.095 frontend
+            self._dmd_has_depfile = version_compare(dmd_frontend_version, ">=2.095.0")
+
+    if T.TYPE_CHECKING:
+        mscrt_args = {}  # type: T.Dict[str, T.List[str]]
+
+        def _get_target_arch_args(self) -> T.List[str]: ...
+
+    LINKER_PREFIX = '-L='
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return ['-of=' + outputname]
+
+    def get_linker_output_args(self, outputname: str) -> T.List[str]:
+        return ['-of=' + outputname]
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if path == "":
+            path = "."
+        return ['-I=' + path]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:3] == '-I=':
+                parameter_list[idx] = i[:3] + os.path.normpath(os.path.join(build_dir, i[3:]))
+            if i[:4] == '-L-L':
+                parameter_list[idx] = i[:4] + os.path.normpath(os.path.join(build_dir, i[4:]))
+            if i[:5] == '-L=-L':
+                parameter_list[idx] = i[:5] + os.path.normpath(os.path.join(build_dir, i[5:]))
+            if i[:6] == '-Wl,-L':
+                parameter_list[idx] = i[:6] + os.path.normpath(os.path.join(build_dir, i[6:]))
+
+        return parameter_list
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        return ['-wi']
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['-w']
+
+    def get_coverage_args(self) -> T.List[str]:
+        return ['-cov']
+
+    def get_coverage_link_args(self) -> T.List[str]:
+        return []
+
+    def get_preprocess_only_args(self) -> T.List[str]:
+        return ['-E']
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return ['-c']
+
+    def get_depfile_suffix(self) -> str:
+        return 'deps'
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        if self._dmd_has_depfile:
+            return [f'-makedeps={outfile}']
+        return []
+
+    def get_pic_args(self) -> T.List[str]:
+        if self.info.is_windows():
+            return []
+        return ['-fPIC']
+
+    def get_feature_args(self, kwargs: T.Dict[str, T.Any], build_to_src: str) -> T.List[str]:
+        # TODO: using a TypeDict here would improve this
+        res = []
+        # get_feature_args can be called multiple times for the same target when there is generated source
+        # so we have to copy the kwargs (target.d_features) dict before popping from it
+        kwargs = kwargs.copy()
+        if 'unittest' in kwargs:
+            unittest = kwargs.pop('unittest')
+            unittest_arg = d_feature_args[self.id]['unittest']
+            if not unittest_arg:
+                raise EnvironmentException('D compiler %s does not support the "unittest" feature.' % self.name_string())
+            if unittest:
+                res.append(unittest_arg)
+
+        if 'debug' in kwargs:
+            debug_level = -1
+            debugs = kwargs.pop('debug')
+            if not isinstance(debugs, list):
+                debugs = [debugs]
+
+            debug_arg = d_feature_args[self.id]['debug']
+            if not debug_arg:
+                raise EnvironmentException('D compiler %s does not support conditional debug identifiers.' % self.name_string())
+
+            # Parse all debug identifiers and the largest debug level identifier
+            for d in debugs:
+                if isinstance(d, int):
+                    if d > debug_level:
+                        debug_level = d
+                elif isinstance(d, str) and d.isdigit():
+                    if int(d) > debug_level:
+                        debug_level = int(d)
+                else:
+                    res.append(f'{debug_arg}={d}')
+
+            if debug_level >= 0:
+                res.append(f'{debug_arg}={debug_level}')
+
+        if 'versions' in kwargs:
+            version_level = -1
+            versions = kwargs.pop('versions')
+            if not isinstance(versions, list):
+                versions = [versions]
+
+            version_arg = d_feature_args[self.id]['version']
+            if not version_arg:
+                raise EnvironmentException('D compiler %s does not support conditional version identifiers.' % self.name_string())
+
+            # Parse all version identifiers and the largest version level identifier
+            for v in versions:
+                if isinstance(v, int):
+                    if v > version_level:
+                        version_level = v
+                elif isinstance(v, str) and v.isdigit():
+                    if int(v) > version_level:
+                        version_level = int(v)
+                else:
+                    res.append(f'{version_arg}={v}')
+
+            if version_level >= 0:
+                res.append(f'{version_arg}={version_level}')
+
+        if 'import_dirs' in kwargs:
+            import_dirs = kwargs.pop('import_dirs')
+            if not isinstance(import_dirs, list):
+                import_dirs = [import_dirs]
+
+            import_dir_arg = d_feature_args[self.id]['import_dir']
+            if not import_dir_arg:
+                raise EnvironmentException('D compiler %s does not support the "string import directories" feature.' % self.name_string())
+            for idir_obj in import_dirs:
+                basedir = idir_obj.get_curdir()
+                for idir in idir_obj.get_incdirs():
+                    bldtreedir = os.path.join(basedir, idir)
+                    # Avoid superfluous '/.' at the end of paths when d is '.'
+                    if idir not in ('', '.'):
+                        expdir = bldtreedir
+                    else:
+                        expdir = basedir
+                    srctreedir = os.path.join(build_to_src, expdir)
+                    res.append(f'{import_dir_arg}{srctreedir}')
+                    res.append(f'{import_dir_arg}{bldtreedir}')
+
+        if kwargs:
+            raise EnvironmentException('Unknown D compiler feature(s) selected: %s' % ', '.join(kwargs.keys()))
+
+        return res
+
+    def get_buildtype_linker_args(self, buildtype: str) -> T.List[str]:
+        if buildtype != 'plain':
+            return self._get_target_arch_args()
+        return []
+
+    def gen_import_library_args(self, implibname: str) -> T.List[str]:
+        return self.linker.import_library_args(implibname)
+
+    def build_rpath_args(self, env: 'Environment', build_dir: str, from_dir: str,
+                         rpath_paths: T.Tuple[str, ...], build_rpath: str,
+                         install_rpath: str) -> T.Tuple[T.List[str], T.Set[bytes]]:
+        if self.info.is_windows():
+            return ([], set())
+
+        # GNU ld, solaris ld, and lld acting like GNU ld
+        if self.linker.id.startswith('ld'):
+            # The way that dmd and ldc pass rpath to gcc is different than we would
+            # do directly, each argument -rpath and the value to rpath, need to be
+            # split into two separate arguments both prefaced with the -L=.
+            args = []
+            (rpath_args, rpath_dirs_to_remove) = super().build_rpath_args(
+                    env, build_dir, from_dir, rpath_paths, build_rpath, install_rpath)
+            for r in rpath_args:
+                if ',' in r:
+                    a, b = r.split(',', maxsplit=1)
+                    args.append(a)
+                    args.append(self.LINKER_PREFIX + b)
+                else:
+                    args.append(r)
+            return (args, rpath_dirs_to_remove)
+
+        return super().build_rpath_args(
+            env, build_dir, from_dir, rpath_paths, build_rpath, install_rpath)
+
+    @classmethod
+    def _translate_args_to_nongnu(cls, args: T.List[str], info: MachineInfo, link_id: str) -> T.List[str]:
+        # Translate common arguments to flags the LDC/DMD compilers
+        # can understand.
+        # The flags might have been added by pkg-config files,
+        # and are therefore out of the user's control.
+        dcargs = []
+        # whether we hit a linker argument that expect another arg
+        # see the comment in the "-L" section
+        link_expect_arg = False
+        link_flags_with_arg = [
+            '-rpath', '-rpath-link', '-soname', '-compatibility_version', '-current_version',
+        ]
+        for arg in args:
+            # Translate OS specific arguments first.
+            osargs = []  # type: T.List[str]
+            if info.is_windows():
+                osargs = cls.translate_arg_to_windows(arg)
+            elif info.is_darwin():
+                osargs = cls._translate_arg_to_osx(arg)
+            if osargs:
+                dcargs.extend(osargs)
+                continue
+
+            # Translate common D arguments here.
+            if arg == '-pthread':
+                continue
+            if arg.startswith('-fstack-protector'):
+                continue
+            if arg.startswith('-D') and not (arg == '-D' or arg.startswith(('-Dd', '-Df'))):
+                # ignore all '-D*' flags (like '-D_THREAD_SAFE')
+                # unless they are related to documentation
+                continue
+            if arg.startswith('-Wl,'):
+                # Translate linker arguments here.
+                linkargs = arg[arg.index(',') + 1:].split(',')
+                for la in linkargs:
+                    dcargs.append('-L=' + la.strip())
+                continue
+            elif arg.startswith(('-link-defaultlib', '-linker', '-link-internally', '-linkonce-templates', '-lib')):
+                # these are special arguments to the LDC linker call,
+                # arguments like "-link-defaultlib-shared" do *not*
+                # denote a library to be linked, but change the default
+                # Phobos/DRuntime linking behavior, while "-linker" sets the
+                # default linker.
+                dcargs.append(arg)
+                continue
+            elif arg.startswith('-l'):
+                # translate library link flag
+                dcargs.append('-L=' + arg)
+                continue
+            elif arg.startswith('-isystem'):
+                # translate -isystem system include path
+                # this flag might sometimes be added by C library Cflags via
+                # pkg-config.
+                # NOTE: -isystem and -I are not 100% equivalent, so this is just
+                # a workaround for the most common cases.
+                if arg.startswith('-isystem='):
+                    dcargs.append('-I=' + arg[9:])
+                else:
+                    dcargs.append('-I' + arg[8:])
+                continue
+            elif arg.startswith('-idirafter'):
+                # same as -isystem, but appends the path instead
+                if arg.startswith('-idirafter='):
+                    dcargs.append('-I=' + arg[11:])
+                else:
+                    dcargs.append('-I' + arg[10:])
+                continue
+            elif arg.startswith('-L'):
+                # The D linker expect library search paths in the form of -L=-L/path (the '=' is optional).
+                #
+                # This function receives a mix of arguments already prepended
+                # with -L for the D linker driver and other linker arguments.
+                # The arguments starting with -L can be:
+                #  - library search path (with or without a second -L)
+                #     - it can come from pkg-config (a single -L)
+                #     - or from the user passing linker flags (-L-L would be expected)
+                #  - arguments like "-L=-rpath" that expect a second argument (also prepended with -L)
+                #  - arguments like "-L=@rpath/xxx" without a second argument (on Apple platform)
+                #  - arguments like "-L=/SUBSYSTEM:CONSOLE (for Windows linker)
+                #
+                # The logic that follows tries to detect all these cases (some may be missing)
+                # in order to prepend a -L only for the library search paths with a single -L
+
+                if arg.startswith('-L='):
+                    suffix = arg[3:]
+                else:
+                    suffix = arg[2:]
+
+                if link_expect_arg:
+                    # flags like rpath and soname expect a path or filename respectively,
+                    # we must not alter it (i.e. prefixing with -L for a lib search path)
+                    dcargs.append(arg)
+                    link_expect_arg = False
+                    continue
+
+                if suffix in link_flags_with_arg:
+                    link_expect_arg = True
+
+                if suffix.startswith('-') or suffix.startswith('@'):
+                    # this is not search path
+                    dcargs.append(arg)
+                    continue
+
+                # linker flag such as -L=/DEBUG must pass through
+                if info.is_windows() and link_id == 'link' and suffix.startswith('/'):
+                    dcargs.append(arg)
+                    continue
+
+                # Make sure static library files are passed properly to the linker.
+                if arg.endswith('.a') or arg.endswith('.lib'):
+                    if len(suffix) > 0 and not suffix.startswith('-'):
+                        dcargs.append('-L=' + suffix)
+                        continue
+
+                dcargs.append('-L=' + arg)
+                continue
+            elif not arg.startswith('-') and arg.endswith(('.a', '.lib')):
+                # ensure static libraries are passed through to the linker
+                dcargs.append('-L=' + arg)
+                continue
+            else:
+                dcargs.append(arg)
+
+        return dcargs
+
+    @classmethod
+    def translate_arg_to_windows(cls, arg: str) -> T.List[str]:
+        args = []
+        if arg.startswith('-Wl,'):
+            # Translate linker arguments here.
+            linkargs = arg[arg.index(',') + 1:].split(',')
+            for la in linkargs:
+                if la.startswith('--out-implib='):
+                    # Import library name
+                    args.append('-L=/IMPLIB:' + la[13:].strip())
+        elif arg.startswith('-mscrtlib='):
+            args.append(arg)
+            mscrtlib = arg[10:].lower()
+            if cls is LLVMDCompiler:
+                # Default crt libraries for LDC2 must be excluded for other
+                # selected crt options.
+                if mscrtlib != 'libcmt':
+                    args.append('-L=/NODEFAULTLIB:libcmt')
+                    args.append('-L=/NODEFAULTLIB:libvcruntime')
+
+                # Fixes missing definitions for printf-functions in VS2017
+                if mscrtlib.startswith('msvcrt'):
+                    args.append('-L=/DEFAULTLIB:legacy_stdio_definitions.lib')
+
+        return args
+
+    @classmethod
+    def _translate_arg_to_osx(cls, arg: str) -> T.List[str]:
+        args = []
+        if arg.startswith('-install_name'):
+            args.append('-L=' + arg)
+        return args
+
+    @classmethod
+    def _unix_args_to_native(cls, args: T.List[str], info: MachineInfo, link_id: str = '') -> T.List[str]:
+        return cls._translate_args_to_nongnu(args, info, link_id)
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        ddebug_args = []
+        if is_debug:
+            ddebug_args = [d_feature_args[self.id]['debug']]
+
+        return clike_debug_args[is_debug] + ddebug_args
+
+    def _get_crt_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        if not self.info.is_windows():
+            return []
+
+        if crt_val in self.mscrt_args:
+            return self.mscrt_args[crt_val]
+        assert crt_val in {'from_buildtype', 'static_from_buildtype'}
+
+        dbg = 'mdd'
+        rel = 'md'
+        if crt_val == 'static_from_buildtype':
+            dbg = 'mtd'
+            rel = 'mt'
+
+        # Match what build type flags used to do.
+        if buildtype == 'plain':
+            return []
+        elif buildtype == 'debug':
+            return self.mscrt_args[dbg]
+        elif buildtype == 'debugoptimized':
+            return self.mscrt_args[rel]
+        elif buildtype == 'release':
+            return self.mscrt_args[rel]
+        elif buildtype == 'minsize':
+            return self.mscrt_args[rel]
+        else:
+            assert buildtype == 'custom'
+            raise EnvironmentException('Requested C runtime based on buildtype, but buildtype is "custom".')
+
+    def get_soname_args(self, env: 'Environment', prefix: str, shlib_name: str,
+                        suffix: str, soversion: str,
+                        darwin_versions: T.Tuple[str, str]) -> T.List[str]:
+        sargs = super().get_soname_args(env, prefix, shlib_name, suffix,
+                                        soversion, darwin_versions)
+
+        # LDC and DMD actually do use a linker, but they proxy all of that with
+        # their own arguments
+        if self.linker.id.startswith('ld.'):
+            soargs = []
+            for arg in sargs:
+                a, b = arg.split(',', maxsplit=1)
+                soargs.append(a)
+                soargs.append(self.LINKER_PREFIX + b)
+            return soargs
+        elif self.linker.id.startswith('ld64'):
+            soargs = []
+            for arg in sargs:
+                if not arg.startswith(self.LINKER_PREFIX):
+                    soargs.append(self.LINKER_PREFIX + arg)
+                else:
+                    soargs.append(arg)
+            return soargs
+        else:
+            return sargs
+
+    def get_allow_undefined_link_args(self) -> T.List[str]:
+        args = self.linker.get_allow_undefined_args()
+        if self.info.is_darwin():
+            # On macOS we're passing these options to the C compiler, but
+            # they're linker options and need -Wl, so clang/gcc knows what to
+            # do with them. I'm assuming, but don't know for certain, that
+            # ldc/dmd do some kind of mapping internally for arguments they
+            # understand, but pass arguments they don't understand directly.
+            args = [a.replace('-L=', '-Xcc=-Wl,') for a in args]
+        return args
+
+
+class DCompilerArgs(CompilerArgs):
+    prepend_prefixes = ('-I', '-L')
+    dedup2_prefixes = ('-I', )
+
+
+class DCompiler(Compiler):
+    mscrt_args = {
+        'none': ['-mscrtlib='],
+        'md': ['-mscrtlib=msvcrt'],
+        'mdd': ['-mscrtlib=msvcrtd'],
+        'mt': ['-mscrtlib=libcmt'],
+        'mtd': ['-mscrtlib=libcmtd'],
+    }
+
+    language = 'd'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 info: 'MachineInfo', arch: str, *,
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None,
+                 is_cross: bool = False):
+        super().__init__([], exelist, version, for_machine, info, linker=linker,
+                         full_version=full_version, is_cross=is_cross)
+        self.arch = arch
+        self.exe_wrapper = exe_wrapper
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        source_name = os.path.join(work_dir, 'sanity.d')
+        output_name = os.path.join(work_dir, 'dtest')
+        with open(source_name, 'w', encoding='utf-8') as ofile:
+            ofile.write('''void main() { }''')
+        pc = subprocess.Popen(self.exelist + self.get_output_args(output_name) + self._get_target_arch_args() + [source_name], cwd=work_dir)
+        pc.wait()
+        if pc.returncode != 0:
+            raise EnvironmentException('D compiler %s can not compile programs.' % self.name_string())
+        if self.is_cross:
+            if self.exe_wrapper is None:
+                # Can't check if the binaries run so we have to assume they do
+                return
+            cmdlist = self.exe_wrapper.get_command() + [output_name]
+        else:
+            cmdlist = [output_name]
+        if subprocess.call(cmdlist) != 0:
+            raise EnvironmentException('Executables created by D compiler %s are not runnable.' % self.name_string())
+
+    def needs_static_linker(self) -> bool:
+        return True
+
+    def get_depfile_suffix(self) -> str:
+        return 'deps'
+
+    def get_pic_args(self) -> T.List[str]:
+        if self.info.is_windows():
+            return []
+        return ['-fPIC']
+
+    def get_feature_args(self, kwargs: T.Dict[str, T.Any], build_to_src: str) -> T.List[str]:
+        # TODO: using a TypeDict here would improve this
+        res = []
+        # get_feature_args can be called multiple times for the same target when there is generated source
+        # so we have to copy the kwargs (target.d_features) dict before popping from it
+        kwargs = kwargs.copy()
+        if 'unittest' in kwargs:
+            unittest = kwargs.pop('unittest')
+            unittest_arg = d_feature_args[self.id]['unittest']
+            if not unittest_arg:
+                raise EnvironmentException('D compiler %s does not support the "unittest" feature.' % self.name_string())
+            if unittest:
+                res.append(unittest_arg)
+
+        if 'debug' in kwargs:
+            debug_level = -1
+            debugs = kwargs.pop('debug')
+            if not isinstance(debugs, list):
+                debugs = [debugs]
+
+            debug_arg = d_feature_args[self.id]['debug']
+            if not debug_arg:
+                raise EnvironmentException('D compiler %s does not support conditional debug identifiers.' % self.name_string())
+
+            # Parse all debug identifiers and the largest debug level identifier
+            for d in debugs:
+                if isinstance(d, int):
+                    if d > debug_level:
+                        debug_level = d
+                elif isinstance(d, str) and d.isdigit():
+                    if int(d) > debug_level:
+                        debug_level = int(d)
+                else:
+                    res.append(f'{debug_arg}={d}')
+
+            if debug_level >= 0:
+                res.append(f'{debug_arg}={debug_level}')
+
+        if 'versions' in kwargs:
+            version_level = -1
+            versions = kwargs.pop('versions')
+            if not isinstance(versions, list):
+                versions = [versions]
+
+            version_arg = d_feature_args[self.id]['version']
+            if not version_arg:
+                raise EnvironmentException('D compiler %s does not support conditional version identifiers.' % self.name_string())
+
+            # Parse all version identifiers and the largest version level identifier
+            for v in versions:
+                if isinstance(v, int):
+                    if v > version_level:
+                        version_level = v
+                elif isinstance(v, str) and v.isdigit():
+                    if int(v) > version_level:
+                        version_level = int(v)
+                else:
+                    res.append(f'{version_arg}={v}')
+
+            if version_level >= 0:
+                res.append(f'{version_arg}={version_level}')
+
+        if 'import_dirs' in kwargs:
+            import_dirs = kwargs.pop('import_dirs')
+            if not isinstance(import_dirs, list):
+                import_dirs = [import_dirs]
+
+            import_dir_arg = d_feature_args[self.id]['import_dir']
+            if not import_dir_arg:
+                raise EnvironmentException('D compiler %s does not support the "string import directories" feature.' % self.name_string())
+            for idir_obj in import_dirs:
+                basedir = idir_obj.get_curdir()
+                for idir in idir_obj.get_incdirs():
+                    bldtreedir = os.path.join(basedir, idir)
+                    # Avoid superfluous '/.' at the end of paths when d is '.'
+                    if idir not in ('', '.'):
+                        expdir = bldtreedir
+                    else:
+                        expdir = basedir
+                    srctreedir = os.path.join(build_to_src, expdir)
+                    res.append(f'{import_dir_arg}{srctreedir}')
+                    res.append(f'{import_dir_arg}{bldtreedir}')
+
+        if kwargs:
+            raise EnvironmentException('Unknown D compiler feature(s) selected: %s' % ', '.join(kwargs.keys()))
+
+        return res
+
+    def get_buildtype_linker_args(self, buildtype: str) -> T.List[str]:
+        if buildtype != 'plain':
+            return self._get_target_arch_args()
+        return []
+
+    def compiler_args(self, args: T.Optional[T.Iterable[str]] = None) -> DCompilerArgs:
+        return DCompilerArgs(self, args)
+
+    def has_multi_arguments(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]:
+        return self.compiles('int i;\n', env, extra_args=args)
+
+    def _get_target_arch_args(self) -> T.List[str]:
+        # LDC2 on Windows targets to current OS architecture, but
+        # it should follow the target specified by the MSVC toolchain.
+        if self.info.is_windows():
+            if self.arch == 'x86_64':
+                return ['-m64']
+            return ['-m32']
+        return []
+
+    def get_crt_compile_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        return []
+
+    def get_crt_link_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        return []
+
+    def _get_compile_extra_args(self, extra_args: T.Union[T.List[str], T.Callable[[CompileCheckMode], T.List[str]], None] = None) -> T.List[str]:
+        args = self._get_target_arch_args()
+        if extra_args:
+            if callable(extra_args):
+                extra_args = extra_args(CompileCheckMode.COMPILE)
+            if isinstance(extra_args, list):
+                args.extend(extra_args)
+            elif isinstance(extra_args, str):
+                args.append(extra_args)
+        return args
+
+    def run(self, code: 'mesonlib.FileOrString', env: 'Environment', *,
+            extra_args: T.Union[T.List[str], T.Callable[[CompileCheckMode], T.List[str]], None] = None,
+            dependencies: T.Optional[T.List['Dependency']] = None) -> compilers.RunResult:
+        need_exe_wrapper = env.need_exe_wrapper(self.for_machine)
+        if need_exe_wrapper and self.exe_wrapper is None:
+            raise compilers.CrossNoRunException('Can not run test applications in this cross environment.')
+        extra_args = self._get_compile_extra_args(extra_args)
+        with self._build_wrapper(code, env, extra_args, dependencies, mode='link', want_output=True) as p:
+            if p.returncode != 0:
+                mlog.debug(f'Could not compile test file {p.input_name}: {p.returncode}\n')
+                return compilers.RunResult(False)
+            if need_exe_wrapper:
+                cmdlist = self.exe_wrapper.get_command() + [p.output_name]
+            else:
+                cmdlist = [p.output_name]
+            try:
+                pe, so, se = mesonlib.Popen_safe(cmdlist)
+            except Exception as e:
+                mlog.debug(f'Could not run: {cmdlist} (error: {e})\n')
+                return compilers.RunResult(False)
+
+        mlog.debug('Program stdout:\n')
+        mlog.debug(so)
+        mlog.debug('Program stderr:\n')
+        mlog.debug(se)
+        return compilers.RunResult(True, pe.returncode, so, se)
+
+    def sizeof(self, typename: str, prefix: str, env: 'Environment', *,
+               extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+               dependencies: T.Optional[T.List['Dependency']] = None) -> int:
+        if extra_args is None:
+            extra_args = []
+        t = f'''
+        import std.stdio : writeln;
+        {prefix}
+        void main() {{
+            writeln(({typename}).sizeof);
+        }}
+        '''
+        res = self.run(t, env, extra_args=extra_args,
+                       dependencies=dependencies)
+        if not res.compiled:
+            return -1
+        if res.returncode != 0:
+            raise mesonlib.EnvironmentException('Could not run sizeof test binary.')
+        return int(res.stdout)
+
+    def alignment(self, typename: str, prefix: str, env: 'Environment', *,
+                  extra_args: T.Optional[T.List[str]] = None,
+                  dependencies: T.Optional[T.List['Dependency']] = None) -> int:
+        if extra_args is None:
+            extra_args = []
+        t = f'''
+        import std.stdio : writeln;
+        {prefix}
+        void main() {{
+            writeln(({typename}).alignof);
+        }}
+        '''
+        res = self.run(t, env, extra_args=extra_args,
+                       dependencies=dependencies)
+        if not res.compiled:
+            raise mesonlib.EnvironmentException('Could not compile alignment test.')
+        if res.returncode != 0:
+            raise mesonlib.EnvironmentException('Could not run alignment test binary.')
+        align = int(res.stdout)
+        if align == 0:
+            raise mesonlib.EnvironmentException(f'Could not determine alignment of {typename}. Sorry. You might want to file a bug.')
+        return align
+
+    def has_header(self, hname: str, prefix: str, env: 'Environment', *,
+                   extra_args: T.Union[None, T.List[str], T.Callable[['CompileCheckMode'], T.List[str]]] = None,
+                   dependencies: T.Optional[T.List['Dependency']] = None,
+                   disable_cache: bool = False) -> T.Tuple[bool, bool]:
+
+        extra_args = self._get_compile_extra_args(extra_args)
+        code = f'''{prefix}
+        import {hname};
+        '''
+        return self.compiles(code, env, extra_args=extra_args,
+                             dependencies=dependencies, mode='compile', disable_cache=disable_cache)
+
+class GnuDCompiler(GnuCompiler, DCompiler):
+
+    # we mostly want DCompiler, but that gives us the Compiler.LINKER_PREFIX instead
+    LINKER_PREFIX = GnuCompiler.LINKER_PREFIX
+    id = 'gcc'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 info: 'MachineInfo', arch: str, *,
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None,
+                 is_cross: bool = False):
+        DCompiler.__init__(self, exelist, version, for_machine, info, arch,
+                           exe_wrapper=exe_wrapper, linker=linker,
+                           full_version=full_version, is_cross=is_cross)
+        GnuCompiler.__init__(self, {})
+        default_warn_args = ['-Wall', '-Wdeprecated']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+                          'everything': (default_warn_args + ['-Wextra', '-Wpedantic'] +
+                                         self.supported_warn_args(gnu_common_warning_args))}
+
+        self.base_options = {
+            OptionKey(o) for o in [
+             'b_colorout', 'b_sanitize', 'b_staticpic', 'b_vscrt',
+             'b_coverage', 'b_pgo', 'b_ndebug']}
+
+        self._has_color_support = version_compare(self.version, '>=4.9')
+        # dependencies were implemented before, but broken - support was fixed in GCC 7.1+
+        # (and some backported versions)
+        self._has_deps_support = version_compare(self.version, '>=7.1')
+
+    def get_colorout_args(self, colortype: str) -> T.List[str]:
+        if self._has_color_support:
+            super().get_colorout_args(colortype)
+        return []
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        if self._has_deps_support:
+            return super().get_dependency_gen_args(outtarget, outfile)
+        return []
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        return self.warn_args[level]
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return d_gdc_buildtype_args[buildtype]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '-L':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+
+        return parameter_list
+
+    def get_allow_undefined_link_args(self) -> T.List[str]:
+        return self.linker.get_allow_undefined_args()
+
+    def get_linker_always_args(self) -> T.List[str]:
+        args = super().get_linker_always_args()
+        if self.info.is_windows():
+            return args
+        return args + ['-shared-libphobos']
+
+    def get_disable_assert_args(self) -> T.List[str]:
+        return ['-frelease']
+
+# LDC uses the DMD frontend code to parse and analyse the code.
+# It then uses LLVM for the binary code generation and optimizations.
+# This function retrieves the dmd frontend version, which determines
+# the common features between LDC and DMD.
+# We need the complete version text because the match is not on first line
+# of version_output
+def find_ldc_dmd_frontend_version(version_output: T.Optional[str]) -> T.Optional[str]:
+    if version_output is None:
+        return None
+    version_regex = re.search(r'DMD v(\d+\.\d+\.\d+)', version_output)
+    if version_regex:
+        return version_regex.group(1)
+    return None
+
+class LLVMDCompiler(DmdLikeCompilerMixin, DCompiler):
+
+    id = 'llvm'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 info: 'MachineInfo', arch: str, *,
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None,
+                 is_cross: bool = False, version_output: T.Optional[str] = None):
+        DCompiler.__init__(self, exelist, version, for_machine, info, arch,
+                           exe_wrapper=exe_wrapper, linker=linker,
+                           full_version=full_version, is_cross=is_cross)
+        DmdLikeCompilerMixin.__init__(self, dmd_frontend_version=find_ldc_dmd_frontend_version(version_output))
+        self.base_options = {OptionKey(o) for o in ['b_coverage', 'b_colorout', 'b_vscrt', 'b_ndebug']}
+
+    def get_colorout_args(self, colortype: str) -> T.List[str]:
+        if colortype == 'always':
+            return ['-enable-color']
+        return []
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        if level in {'2', '3'}:
+            return ['-wi', '-dw']
+        elif level == '1':
+            return ['-wi']
+        return []
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        if buildtype != 'plain':
+            return self._get_target_arch_args() + d_ldc_buildtype_args[buildtype]
+        return d_ldc_buildtype_args[buildtype]
+
+    def get_pic_args(self) -> T.List[str]:
+        return ['-relocation-model=pic']
+
+    def get_crt_link_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        return self._get_crt_args(crt_val, buildtype)
+
+    def unix_args_to_native(self, args: T.List[str]) -> T.List[str]:
+        return self._unix_args_to_native(args, self.info, self.linker.id)
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return ldc_optimization_args[optimization_level]
+
+    @classmethod
+    def use_linker_args(cls, linker: str, version: str) -> T.List[str]:
+        return [f'-linker={linker}']
+
+    def get_linker_always_args(self) -> T.List[str]:
+        args = super().get_linker_always_args()
+        if self.info.is_windows():
+            return args
+        return args + ['-link-defaultlib-shared']
+
+    def get_disable_assert_args(self) -> T.List[str]:
+        return ['--release']
+
+    def rsp_file_syntax(self) -> RSPFileSyntax:
+        # We use `mesonlib.is_windows` here because we want to know what the
+        # build machine is, not the host machine. This really means we would
+        # have the Environment not the MachineInfo in the compiler.
+        return RSPFileSyntax.MSVC if is_windows() else RSPFileSyntax.GCC
+
+
+class DmdDCompiler(DmdLikeCompilerMixin, DCompiler):
+
+    id = 'dmd'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 info: 'MachineInfo', arch: str, *,
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None,
+                 is_cross: bool = False):
+        DCompiler.__init__(self, exelist, version, for_machine, info, arch,
+                           exe_wrapper=exe_wrapper, linker=linker,
+                           full_version=full_version, is_cross=is_cross)
+        DmdLikeCompilerMixin.__init__(self, version)
+        self.base_options = {OptionKey(o) for o in ['b_coverage', 'b_colorout', 'b_vscrt', 'b_ndebug']}
+
+    def get_colorout_args(self, colortype: str) -> T.List[str]:
+        if colortype == 'always':
+            return ['-color=on']
+        return []
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        if buildtype != 'plain':
+            return self._get_target_arch_args() + d_dmd_buildtype_args[buildtype]
+        return d_dmd_buildtype_args[buildtype]
+
+    def get_std_exe_link_args(self) -> T.List[str]:
+        if self.info.is_windows():
+            # DMD links against D runtime only when main symbol is found,
+            # so these needs to be inserted when linking static D libraries.
+            if self.arch == 'x86_64':
+                return ['phobos64.lib']
+            elif self.arch == 'x86_mscoff':
+                return ['phobos32mscoff.lib']
+            return ['phobos.lib']
+        return []
+
+    def get_std_shared_lib_link_args(self) -> T.List[str]:
+        libname = 'libphobos2.so'
+        if self.info.is_windows():
+            if self.arch == 'x86_64':
+                libname = 'phobos64.lib'
+            elif self.arch == 'x86_mscoff':
+                libname = 'phobos32mscoff.lib'
+            else:
+                libname = 'phobos.lib'
+        return ['-shared', '-defaultlib=' + libname]
+
+    def _get_target_arch_args(self) -> T.List[str]:
+        # DMD32 and DMD64 on 64-bit Windows defaults to 32-bit (OMF).
+        # Force the target to 64-bit in order to stay consistent
+        # across the different platforms.
+        if self.info.is_windows():
+            if self.arch == 'x86_64':
+                return ['-m64']
+            elif self.arch == 'x86_mscoff':
+                return ['-m32mscoff']
+            return ['-m32']
+        return []
+
+    def get_crt_compile_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        return self._get_crt_args(crt_val, buildtype)
+
+    def unix_args_to_native(self, args: T.List[str]) -> T.List[str]:
+        return self._unix_args_to_native(args, self.info, self.linker.id)
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return dmd_optimization_args[optimization_level]
+
+    def can_linker_accept_rsp(self) -> bool:
+        return False
+
+    def get_linker_always_args(self) -> T.List[str]:
+        args = super().get_linker_always_args()
+        if self.info.is_windows():
+            return args
+        return args + ['-defaultlib=phobos2', '-debuglib=phobos2']
+
+    def get_disable_assert_args(self) -> T.List[str]:
+        return ['-release']
+
+    def rsp_file_syntax(self) -> RSPFileSyntax:
+        return RSPFileSyntax.MSVC
diff --git a/mesonbuild/compilers/detect.py b/mesonbuild/compilers/detect.py
new file mode 100644
index 0000000..1f37833
--- /dev/null
+++ b/mesonbuild/compilers/detect.py
@@ -0,0 +1,1317 @@
+# Copyright 2012-2022 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+from ..mesonlib import (
+    MesonException, EnvironmentException, MachineChoice, join_args,
+    search_version, is_windows, Popen_safe, windows_proof_rm,
+)
+from ..envconfig import BinaryTable
+from .. import mlog
+
+from ..linkers import guess_win_linker, guess_nix_linker
+
+import subprocess
+import platform
+import re
+import shutil
+import tempfile
+import os
+import typing as T
+
+if T.TYPE_CHECKING:
+    from .compilers import Compiler
+    from .c import CCompiler
+    from .cpp import CPPCompiler
+    from .fortran import FortranCompiler
+    from .rust import RustCompiler
+    from ..linkers import StaticLinker
+    from ..environment import Environment
+    from ..programs import ExternalProgram
+
+
+# Default compilers and linkers
+# =============================
+
+defaults: T.Dict[str, T.List[str]] = {}
+
+# List of potential compilers.
+if is_windows():
+    # Intel C and C++ compiler is icl on Windows, but icc and icpc elsewhere.
+    # Search for icl before cl, since Intel "helpfully" provides a
+    # cl.exe that returns *exactly the same thing* that microsofts
+    # cl.exe does, and if icl is present, it's almost certainly what
+    # you want.
+    defaults['c'] = ['icl', 'cl', 'cc', 'gcc', 'clang', 'clang-cl', 'pgcc']
+    # There is currently no pgc++ for Windows, only for  Mac and Linux.
+    defaults['cpp'] = ['icl', 'cl', 'c++', 'g++', 'clang++', 'clang-cl']
+    defaults['fortran'] = ['ifort', 'gfortran', 'flang', 'pgfortran', 'g95']
+    # Clang and clang++ are valid, but currently unsupported.
+    defaults['objc'] = ['cc', 'gcc']
+    defaults['objcpp'] = ['c++', 'g++']
+    defaults['cs'] = ['csc', 'mcs']
+else:
+    if platform.machine().lower() == 'e2k':
+        defaults['c'] = ['cc', 'gcc', 'lcc', 'clang']
+        defaults['cpp'] = ['c++', 'g++', 'l++', 'clang++']
+        defaults['objc'] = ['clang']
+        defaults['objcpp'] = ['clang++']
+    else:
+        defaults['c'] = ['cc', 'gcc', 'clang', 'nvc', 'pgcc', 'icc', 'icx']
+        defaults['cpp'] = ['c++', 'g++', 'clang++', 'nvc++', 'pgc++', 'icpc', 'icpx']
+        defaults['objc'] = ['cc', 'gcc', 'clang']
+        defaults['objcpp'] = ['c++', 'g++', 'clang++']
+    defaults['fortran'] = ['gfortran', 'flang', 'nvfortran', 'pgfortran', 'ifort', 'ifx', 'g95']
+    defaults['cs'] = ['mcs', 'csc']
+defaults['d'] = ['ldc2', 'ldc', 'gdc', 'dmd']
+defaults['java'] = ['javac']
+defaults['cuda'] = ['nvcc']
+defaults['rust'] = ['rustc']
+defaults['swift'] = ['swiftc']
+defaults['vala'] = ['valac']
+defaults['cython'] = ['cython', 'cython3'] # Official name is cython, but Debian renamed it to cython3.
+defaults['static_linker'] = ['ar', 'gar']
+defaults['strip'] = ['strip']
+defaults['vs_static_linker'] = ['lib']
+defaults['clang_cl_static_linker'] = ['llvm-lib']
+defaults['cuda_static_linker'] = ['nvlink']
+defaults['gcc_static_linker'] = ['gcc-ar']
+defaults['clang_static_linker'] = ['llvm-ar']
+defaults['nasm'] = ['nasm', 'yasm']
+
+
+def compiler_from_language(env: 'Environment', lang: str, for_machine: MachineChoice) -> T.Optional[Compiler]:
+    lang_map: T.Dict[str, T.Callable[['Environment', MachineChoice], Compiler]] = {
+        'c': detect_c_compiler,
+        'cpp': detect_cpp_compiler,
+        'objc': detect_objc_compiler,
+        'cuda': detect_cuda_compiler,
+        'objcpp': detect_objcpp_compiler,
+        'java': detect_java_compiler,
+        'cs': detect_cs_compiler,
+        'vala': detect_vala_compiler,
+        'd': detect_d_compiler,
+        'rust': detect_rust_compiler,
+        'fortran': detect_fortran_compiler,
+        'swift': detect_swift_compiler,
+        'cython': detect_cython_compiler,
+        'nasm': detect_nasm_compiler,
+        'masm': detect_masm_compiler,
+    }
+    return lang_map[lang](env, for_machine) if lang in lang_map else None
+
+def detect_compiler_for(env: 'Environment', lang: str, for_machine: MachineChoice) -> T.Optional[Compiler]:
+    comp = compiler_from_language(env, lang, for_machine)
+    if comp is not None:
+        assert comp.for_machine == for_machine
+        env.coredata.process_new_compiler(lang, comp, env)
+    return comp
+
+
+# Helpers
+# =======
+
+def _get_compilers(env: 'Environment', lang: str, for_machine: MachineChoice) -> T.Tuple[T.List[T.List[str]], T.List[str], T.Optional['ExternalProgram']]:
+    '''
+    The list of compilers is detected in the exact same way for
+    C, C++, ObjC, ObjC++, Fortran, CS so consolidate it here.
+    '''
+    value = env.lookup_binary_entry(for_machine, lang)
+    if value is not None:
+        comp, ccache = BinaryTable.parse_entry(value)
+        # Return value has to be a list of compiler 'choices'
+        compilers = [comp]
+    else:
+        if not env.machines.matches_build_machine(for_machine):
+            raise EnvironmentException(f'{lang!r} compiler binary not defined in cross or native file')
+        compilers = [[x] for x in defaults[lang]]
+        ccache = BinaryTable.detect_compiler_cache()
+
+    if env.machines.matches_build_machine(for_machine):
+        exe_wrap: T.Optional[ExternalProgram] = None
+    else:
+        exe_wrap = env.get_exe_wrapper()
+
+    return compilers, ccache, exe_wrap
+
+def _handle_exceptions(
+        exceptions: T.Mapping[str, T.Union[Exception, str]],
+        binaries: T.List[T.List[str]],
+        bintype: str = 'compiler') -> T.NoReturn:
+    errmsg = f'Unknown {bintype}(s): {binaries}'
+    if exceptions:
+        errmsg += '\nThe following exception(s) were encountered:'
+        for c, e in exceptions.items():
+            errmsg += f'\nRunning `{c}` gave "{e}"'
+    raise EnvironmentException(errmsg)
+
+
+# Linker specific
+# ===============
+
+def detect_static_linker(env: 'Environment', compiler: Compiler) -> StaticLinker:
+    from . import d
+    from ..linkers import linkers
+    linker = env.lookup_binary_entry(compiler.for_machine, 'ar')
+    if linker is not None:
+        trials = [linker]
+    else:
+        default_linkers = [[l] for l in defaults['static_linker']]
+        if compiler.language == 'cuda':
+            trials = [defaults['cuda_static_linker']] + default_linkers
+        elif compiler.get_argument_syntax() == 'msvc':
+            trials = [defaults['vs_static_linker'], defaults['clang_cl_static_linker']]
+        elif compiler.id == 'gcc':
+            # Use gcc-ar if available; needed for LTO
+            trials = [defaults['gcc_static_linker']] + default_linkers
+        elif compiler.id == 'clang':
+            # Use llvm-ar if available; needed for LTO
+            trials = [defaults['clang_static_linker']] + default_linkers
+        elif compiler.language == 'd':
+            # Prefer static linkers over linkers used by D compilers
+            if is_windows():
+                trials = [defaults['vs_static_linker'], defaults['clang_cl_static_linker'], compiler.get_linker_exelist()]
+            else:
+                trials = default_linkers
+        elif compiler.id == 'intel-cl' and compiler.language == 'c': # why not cpp? Is this a bug?
+            # Intel has it's own linker that acts like microsoft's lib
+            trials = [['xilib']]
+        elif is_windows() and compiler.id == 'pgi': # this handles cpp / nvidia HPC, in addition to just c/fortran
+            trials = [['ar']]  # For PGI on Windows, "ar" is just a wrapper calling link/lib.
+        else:
+            trials = default_linkers
+    popen_exceptions = {}
+    for linker in trials:
+        linker_name = os.path.basename(linker[0])
+
+        if any(os.path.basename(x) in {'lib', 'lib.exe', 'llvm-lib', 'llvm-lib.exe', 'xilib', 'xilib.exe'} for x in linker):
+            arg = '/?'
+        elif linker_name in {'ar2000', 'ar2000.exe', 'ar430', 'ar430.exe', 'armar', 'armar.exe'}:
+            arg = '?'
+        else:
+            arg = '--version'
+        try:
+            p, out, err = Popen_safe(linker + [arg])
+        except OSError as e:
+            popen_exceptions[join_args(linker + [arg])] = e
+            continue
+        if "xilib: executing 'lib'" in err:
+            return linkers.IntelVisualStudioLinker(linker, getattr(compiler, 'machine', None))
+        if '/OUT:' in out.upper() or '/OUT:' in err.upper():
+            return linkers.VisualStudioLinker(linker, getattr(compiler, 'machine', None))
+        if 'ar-Error-Unknown switch: --version' in err:
+            return linkers.PGIStaticLinker(linker)
+        if p.returncode == 0 and 'armar' in linker_name:
+            return linkers.ArmarLinker(linker)
+        if 'DMD32 D Compiler' in out or 'DMD64 D Compiler' in out:
+            assert isinstance(compiler, d.DCompiler)
+            return linkers.DLinker(linker, compiler.arch)
+        if 'LDC - the LLVM D compiler' in out:
+            assert isinstance(compiler, d.DCompiler)
+            return linkers.DLinker(linker, compiler.arch, rsp_syntax=compiler.rsp_file_syntax())
+        if 'GDC' in out and ' based on D ' in out:
+            assert isinstance(compiler, d.DCompiler)
+            return linkers.DLinker(linker, compiler.arch)
+        if err.startswith('Renesas') and 'rlink' in linker_name:
+            return linkers.CcrxLinker(linker)
+        if out.startswith('GNU ar') and 'xc16-ar' in linker_name:
+            return linkers.Xc16Linker(linker)
+        if 'Texas Instruments Incorporated' in out:
+            if 'ar2000' in linker_name:
+                return linkers.C2000Linker(linker)
+            else:
+                return linkers.TILinker(linker)
+        if out.startswith('The CompCert'):
+            return linkers.CompCertLinker(linker)
+        if p.returncode == 0:
+            return linkers.ArLinker(compiler.for_machine, linker)
+        if p.returncode == 1 and err.startswith('usage'): # OSX
+            return linkers.AppleArLinker(compiler.for_machine, linker)
+        if p.returncode == 1 and err.startswith('Usage'): # AIX
+            return linkers.AIXArLinker(linker)
+        if p.returncode == 1 and err.startswith('ar: bad option: --'): # Solaris
+            return linkers.ArLinker(compiler.for_machine, linker)
+    _handle_exceptions(popen_exceptions, trials, 'linker')
+    raise EnvironmentException('Unreachable code (exception to make mypy happy)')
+
+
+# Compilers
+# =========
+
+
+def _detect_c_or_cpp_compiler(env: 'Environment', lang: str, for_machine: MachineChoice, *, override_compiler: T.Optional[T.List[str]] = None) -> Compiler:
+    """Shared implementation for finding the C or C++ compiler to use.
+
+    the override_compiler option is provided to allow compilers which use
+    the compiler (GCC or Clang usually) as their shared linker, to find
+    the linker they need.
+    """
+    from . import c, cpp
+    from ..linkers import linkers
+    popen_exceptions: T.Dict[str, T.Union[Exception, str]] = {}
+    compilers, ccache, exe_wrap = _get_compilers(env, lang, for_machine)
+    if override_compiler is not None:
+        compilers = [override_compiler]
+    is_cross = env.is_cross_build(for_machine)
+    info = env.machines[for_machine]
+    cls: T.Union[T.Type[CCompiler], T.Type[CPPCompiler]]
+
+    for compiler in compilers:
+        if isinstance(compiler, str):
+            compiler = [compiler]
+        compiler_name = os.path.basename(compiler[0])
+
+        if any(os.path.basename(x) in {'cl', 'cl.exe', 'clang-cl', 'clang-cl.exe'} for x in compiler):
+            # Watcom C provides it's own cl.exe clone that mimics an older
+            # version of Microsoft's compiler. Since Watcom's cl.exe is
+            # just a wrapper, we skip using it if we detect its presence
+            # so as not to confuse Meson when configuring for MSVC.
+            #
+            # Additionally the help text of Watcom's cl.exe is paged, and
+            # the binary will not exit without human intervention. In
+            # practice, Meson will block waiting for Watcom's cl.exe to
+            # exit, which requires user input and thus will never exit.
+            if 'WATCOM' in os.environ:
+                def sanitize(p: str) -> str:
+                    return os.path.normcase(os.path.abspath(p))
+
+                watcom_cls = [sanitize(os.path.join(os.environ['WATCOM'], 'BINNT', 'cl')),
+                              sanitize(os.path.join(os.environ['WATCOM'], 'BINNT', 'cl.exe')),
+                              sanitize(os.path.join(os.environ['WATCOM'], 'BINNT64', 'cl')),
+                              sanitize(os.path.join(os.environ['WATCOM'], 'BINNT64', 'cl.exe'))]
+                found_cl = sanitize(shutil.which('cl'))
+                if found_cl in watcom_cls:
+                    mlog.debug('Skipping unsupported cl.exe clone at:', found_cl)
+                    continue
+            arg = '/?'
+        elif 'armcc' in compiler_name:
+            arg = '--vsn'
+        elif 'ccrx' in compiler_name:
+            arg = '-v'
+        elif 'xc16' in compiler_name:
+            arg = '--version'
+        elif 'ccomp' in compiler_name:
+            arg = '-version'
+        elif compiler_name in {'cl2000', 'cl2000.exe', 'cl430', 'cl430.exe', 'armcl', 'armcl.exe'}:
+            # TI compiler
+            arg = '-version'
+        elif compiler_name in {'icl', 'icl.exe'}:
+            # if you pass anything to icl you get stuck in a pager
+            arg = ''
+        else:
+            arg = '--version'
+
+        cmd = compiler + [arg]
+        try:
+            mlog.debug('-----')
+            mlog.debug(f'Detecting compiler via: {join_args(cmd)}')
+            p, out, err = Popen_safe(cmd)
+            mlog.debug(f'compiler returned {p}')
+            mlog.debug(f'compiler stdout:\n{out}')
+            mlog.debug(f'compiler stderr:\n{err}')
+        except OSError as e:
+            popen_exceptions[join_args(cmd)] = e
+            continue
+
+        if 'ccrx' in compiler_name:
+            out = err
+
+        full_version = out.split('\n', 1)[0]
+        version = search_version(out)
+
+        guess_gcc_or_lcc: T.Optional[str] = None
+        if 'Free Software Foundation' in out or 'xt-' in out:
+            guess_gcc_or_lcc = 'gcc'
+        if 'e2k' in out and 'lcc' in out:
+            guess_gcc_or_lcc = 'lcc'
+        if 'Microchip Technology' in out:
+            # this output has "Free Software Foundation" in its version
+            guess_gcc_or_lcc = None
+
+        if guess_gcc_or_lcc:
+            defines = _get_gnu_compiler_defines(compiler)
+            if not defines:
+                popen_exceptions[join_args(compiler)] = 'no pre-processor defines'
+                continue
+
+            if guess_gcc_or_lcc == 'lcc':
+                version = _get_lcc_version_from_defines(defines)
+                cls = c.ElbrusCCompiler if lang == 'c' else cpp.ElbrusCPPCompiler
+            else:
+                version = _get_gnu_version_from_defines(defines)
+                cls = c.GnuCCompiler if lang == 'c' else cpp.GnuCPPCompiler
+
+            linker = guess_nix_linker(env, compiler, cls, version, for_machine)
+
+            return cls(
+                ccache, compiler, version, for_machine, is_cross,
+                info, exe_wrap, defines=defines, full_version=full_version,
+                linker=linker)
+
+        if 'Emscripten' in out:
+            cls = c.EmscriptenCCompiler if lang == 'c' else cpp.EmscriptenCPPCompiler
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+
+            # emcc requires a file input in order to pass arguments to the
+            # linker. It'll exit with an error code, but still print the
+            # linker version.
+            with tempfile.NamedTemporaryFile(suffix='.c') as f:
+                cmd = compiler + [cls.LINKER_PREFIX + "--version", f.name]
+                _, o, _ = Popen_safe(cmd)
+
+            linker = linkers.WASMDynamicLinker(
+                compiler, for_machine, cls.LINKER_PREFIX,
+                [], version=search_version(o))
+            return cls(
+                ccache, compiler, version, for_machine, is_cross, info,
+                exe_wrap, linker=linker, full_version=full_version)
+
+        if 'Arm C/C++/Fortran Compiler' in out:
+            arm_ver_match = re.search(r'version (\d+)\.(\d+)\.?(\d+)? \(build number (\d+)\)', out)
+            assert arm_ver_match is not None, 'for mypy'  # because mypy *should* be complaning that this could be None
+            version = '.'.join([x for x in arm_ver_match.groups() if x is not None])
+            if lang == 'c':
+                cls = c.ArmLtdClangCCompiler
+            elif lang == 'cpp':
+                cls = cpp.ArmLtdClangCPPCompiler
+            linker = guess_nix_linker(env, compiler, cls, version, for_machine)
+            return cls(
+                ccache, compiler, version, for_machine, is_cross, info,
+                exe_wrap, linker=linker)
+        if 'armclang' in out:
+            # The compiler version is not present in the first line of output,
+            # instead it is present in second line, startswith 'Component:'.
+            # So, searching for the 'Component' in out although we know it is
+            # present in second line, as we are not sure about the
+            # output format in future versions
+            arm_ver_match = re.search('.*Component.*', out)
+            if arm_ver_match is None:
+                popen_exceptions[join_args(compiler)] = 'version string not found'
+                continue
+            arm_ver_str = arm_ver_match.group(0)
+            # Override previous values
+            version = search_version(arm_ver_str)
+            full_version = arm_ver_str
+            cls = c.ArmclangCCompiler if lang == 'c' else cpp.ArmclangCPPCompiler
+            linker = linkers.ArmClangDynamicLinker(for_machine, version=version)
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+            return cls(
+                ccache, compiler, version, for_machine, is_cross, info,
+                exe_wrap, full_version=full_version, linker=linker)
+        if 'CL.EXE COMPATIBILITY' in out:
+            # if this is clang-cl masquerading as cl, detect it as cl, not
+            # clang
+            arg = '--version'
+            try:
+                p, out, err = Popen_safe(compiler + [arg])
+            except OSError as e:
+                popen_exceptions[join_args(compiler + [arg])] = e
+            version = search_version(out)
+            match = re.search('^Target: (.*?)-', out, re.MULTILINE)
+            if match:
+                target = match.group(1)
+            else:
+                target = 'unknown target'
+            cls = c.ClangClCCompiler if lang == 'c' else cpp.ClangClCPPCompiler
+            linker = guess_win_linker(env, ['lld-link'], cls, version, for_machine)
+            return cls(
+                compiler, version, for_machine, is_cross, info, target,
+                exe_wrap, linker=linker)
+        if 'clang' in out or 'Clang' in out:
+            linker = None
+
+            defines = _get_clang_compiler_defines(compiler)
+
+            # Even if the for_machine is darwin, we could be using vanilla
+            # clang.
+            if 'Apple' in out:
+                cls = c.AppleClangCCompiler if lang == 'c' else cpp.AppleClangCPPCompiler
+            else:
+                cls = c.ClangCCompiler if lang == 'c' else cpp.ClangCPPCompiler
+
+            if 'windows' in out or env.machines[for_machine].is_windows():
+                # If we're in a MINGW context this actually will use a gnu
+                # style ld, but for clang on "real" windows we'll use
+                # either link.exe or lld-link.exe
+                try:
+                    linker = guess_win_linker(env, compiler, cls, version, for_machine, invoked_directly=False)
+                except MesonException:
+                    pass
+            if linker is None:
+                linker = guess_nix_linker(env, compiler, cls, version, for_machine)
+
+            return cls(
+                ccache, compiler, version, for_machine, is_cross, info,
+                exe_wrap, defines=defines, full_version=full_version, linker=linker)
+
+        if 'Intel(R) C++ Intel(R)' in err:
+            version = search_version(err)
+            target = 'x86' if 'IA-32' in err else 'x86_64'
+            cls = c.IntelClCCompiler if lang == 'c' else cpp.IntelClCPPCompiler
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+            linker = linkers.XilinkDynamicLinker(for_machine, [], version=version)
+            return cls(
+                compiler, version, for_machine, is_cross, info, target,
+                exe_wrap, linker=linker)
+        if 'Intel(R) oneAPI DPC++/C++ Compiler for applications' in err:
+            version = search_version(err)
+            target = 'x86' if 'IA-32' in err else 'x86_64'
+            cls = c.IntelLLVMClCCompiler if lang == 'c' else cpp.IntelLLVMClCPPCompiler
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+            linker = linkers.XilinkDynamicLinker(for_machine, [], version=version)
+            return cls(
+                compiler, version, for_machine, is_cross, info, target,
+                exe_wrap, linker=linker)
+        if 'Microsoft' in out or 'Microsoft' in err:
+            # Latest versions of Visual Studio print version
+            # number to stderr but earlier ones print version
+            # on stdout.  Why? Lord only knows.
+            # Check both outputs to figure out version.
+            for lookat in [err, out]:
+                version = search_version(lookat)
+                if version != 'unknown version':
+                    break
+            else:
+                raise EnvironmentException(f'Failed to detect MSVC compiler version: stderr was\n{err!r}')
+            cl_signature = lookat.split('\n', maxsplit=1)[0]
+            match = re.search(r'.*(x86|x64|ARM|ARM64)([^_A-Za-z0-9]|$)', cl_signature)
+            if match:
+                target = match.group(1)
+            else:
+                m = f'Failed to detect MSVC compiler target architecture: \'cl /?\' output is\n{cl_signature}'
+                raise EnvironmentException(m)
+            cls = c.VisualStudioCCompiler if lang == 'c' else cpp.VisualStudioCPPCompiler
+            linker = guess_win_linker(env, ['link'], cls, version, for_machine)
+            # As of this writing, CCache does not support MSVC but sccache does.
+            if 'sccache' not in ccache:
+                ccache = []
+            return cls(
+                ccache, compiler, version, for_machine, is_cross, info, target,
+                exe_wrap, full_version=cl_signature, linker=linker)
+        if 'PGI Compilers' in out:
+            cls = c.PGICCompiler if lang == 'c' else cpp.PGICPPCompiler
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+            linker = linkers.PGIDynamicLinker(compiler, for_machine, cls.LINKER_PREFIX, [], version=version)
+            return cls(
+                ccache, compiler, version, for_machine, is_cross,
+                info, exe_wrap, linker=linker)
+        if 'NVIDIA Compilers and Tools' in out:
+            cls = c.NvidiaHPC_CCompiler if lang == 'c' else cpp.NvidiaHPC_CPPCompiler
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+            linker = linkers.NvidiaHPC_DynamicLinker(compiler, for_machine, cls.LINKER_PREFIX, [], version=version)
+            return cls(
+                ccache, compiler, version, for_machine, is_cross,
+                info, exe_wrap, linker=linker)
+        if '(ICC)' in out:
+            cls = c.IntelCCompiler if lang == 'c' else cpp.IntelCPPCompiler
+            l = guess_nix_linker(env, compiler, cls, version, for_machine)
+            return cls(
+                ccache, compiler, version, for_machine, is_cross, info,
+                exe_wrap, full_version=full_version, linker=l)
+        if 'Intel(R) oneAPI' in out:
+            cls = c.IntelLLVMCCompiler if lang == 'c' else cpp.IntelLLVMCPPCompiler
+            l = guess_nix_linker(env, compiler, cls, version, for_machine)
+            return cls(
+                ccache, compiler, version, for_machine, is_cross, info,
+                exe_wrap, full_version=full_version, linker=l)
+        if 'TMS320C2000 C/C++' in out or 'MSP430 C/C++' in out or 'TI ARM C/C++ Compiler' in out:
+            lnk: T.Union[T.Type[linkers.C2000DynamicLinker], T.Type[linkers.TIDynamicLinker]]
+            if 'TMS320C2000 C/C++' in out:
+                cls = c.C2000CCompiler if lang == 'c' else cpp.C2000CPPCompiler
+                lnk = linkers.C2000DynamicLinker
+            else:
+                cls = c.TICCompiler if lang == 'c' else cpp.TICPPCompiler
+                lnk = linkers.TIDynamicLinker
+
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+            linker = lnk(compiler, for_machine, version=version)
+            return cls(
+                ccache, compiler, version, for_machine, is_cross, info,
+                exe_wrap, full_version=full_version, linker=linker)
+        if 'ARM' in out:
+            cls = c.ArmCCompiler if lang == 'c' else cpp.ArmCPPCompiler
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+            linker = linkers.ArmDynamicLinker(for_machine, version=version)
+            return cls(
+                ccache, compiler, version, for_machine, is_cross,
+                info, exe_wrap, full_version=full_version, linker=linker)
+        if 'RX Family' in out:
+            cls = c.CcrxCCompiler if lang == 'c' else cpp.CcrxCPPCompiler
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+            linker = linkers.CcrxDynamicLinker(for_machine, version=version)
+            return cls(
+                ccache, compiler, version, for_machine, is_cross, info,
+                exe_wrap, full_version=full_version, linker=linker)
+
+        if 'Microchip Technology' in out:
+            cls = c.Xc16CCompiler
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+            linker = linkers.Xc16DynamicLinker(for_machine, version=version)
+            return cls(
+                ccache, compiler, version, for_machine, is_cross, info,
+                exe_wrap, full_version=full_version, linker=linker)
+
+        if 'CompCert' in out:
+            cls = c.CompCertCCompiler
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+            linker = linkers.CompCertDynamicLinker(for_machine, version=version)
+            return cls(
+                ccache, compiler, version, for_machine, is_cross, info,
+                exe_wrap, full_version=full_version, linker=linker)
+
+    _handle_exceptions(popen_exceptions, compilers)
+    raise EnvironmentException(f'Unknown compiler {compilers}')
+
+def detect_c_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler:
+    return _detect_c_or_cpp_compiler(env, 'c', for_machine)
+
+def detect_cpp_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler:
+    return _detect_c_or_cpp_compiler(env, 'cpp', for_machine)
+
+def detect_cuda_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler:
+    from .cuda import CudaCompiler
+    from ..linkers.linkers import CudaLinker
+    popen_exceptions = {}
+    is_cross = env.is_cross_build(for_machine)
+    compilers, ccache, exe_wrap = _get_compilers(env, 'cuda', for_machine)
+    info = env.machines[for_machine]
+    for compiler in compilers:
+        arg = '--version'
+        try:
+            p, out, err = Popen_safe(compiler + [arg])
+        except OSError as e:
+            popen_exceptions[join_args(compiler + [arg])] = e
+            continue
+        # Example nvcc printout:
+        #
+        #     nvcc: NVIDIA (R) Cuda compiler driver
+        #     Copyright (c) 2005-2018 NVIDIA Corporation
+        #     Built on Sat_Aug_25_21:08:01_CDT_2018
+        #     Cuda compilation tools, release 10.0, V10.0.130
+        #
+        # search_version() first finds the "10.0" after "release",
+        # rather than the more precise "10.0.130" after "V".
+        # The patch version number is occasionally important; For
+        # instance, on Linux,
+        #    - CUDA Toolkit 8.0.44 requires NVIDIA Driver 367.48
+        #    - CUDA Toolkit 8.0.61 requires NVIDIA Driver 375.26
+        # Luckily, the "V" also makes it very simple to extract
+        # the full version:
+        version = out.strip().rsplit('V', maxsplit=1)[-1]
+        cpp_compiler = detect_cpp_compiler(env, for_machine)
+        cls = CudaCompiler
+        env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+        linker = CudaLinker(compiler, for_machine, CudaCompiler.LINKER_PREFIX, [], version=CudaLinker.parse_version())
+        return cls(ccache, compiler, version, for_machine, is_cross, exe_wrap, host_compiler=cpp_compiler, info=info, linker=linker)
+    raise EnvironmentException(f'Could not find suitable CUDA compiler: "{"; ".join([" ".join(c) for c in compilers])}"')
+
+def detect_fortran_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler:
+    from . import fortran
+    from ..linkers import linkers
+    popen_exceptions: T.Dict[str, T.Union[Exception, str]] = {}
+    compilers, ccache, exe_wrap = _get_compilers(env, 'fortran', for_machine)
+    is_cross = env.is_cross_build(for_machine)
+    info = env.machines[for_machine]
+    cls: T.Type[FortranCompiler]
+    for compiler in compilers:
+        for arg in ['--version', '-V']:
+            try:
+                p, out, err = Popen_safe(compiler + [arg])
+            except OSError as e:
+                popen_exceptions[join_args(compiler + [arg])] = e
+                continue
+
+            version = search_version(out)
+            full_version = out.split('\n', 1)[0]
+
+            guess_gcc_or_lcc: T.Optional[str] = None
+            if 'GNU Fortran' in out:
+                guess_gcc_or_lcc = 'gcc'
+            if 'e2k' in out and 'lcc' in out:
+                guess_gcc_or_lcc = 'lcc'
+
+            if guess_gcc_or_lcc:
+                defines = _get_gnu_compiler_defines(compiler)
+                if not defines:
+                    popen_exceptions[join_args(compiler)] = 'no pre-processor defines'
+                    continue
+                if guess_gcc_or_lcc == 'lcc':
+                    version = _get_lcc_version_from_defines(defines)
+                    cls = fortran.ElbrusFortranCompiler
+                    linker = guess_nix_linker(env, compiler, cls, version, for_machine)
+                    return cls(
+                        compiler, version, for_machine, is_cross, info,
+                        exe_wrap, defines, full_version=full_version, linker=linker)
+                else:
+                    version = _get_gnu_version_from_defines(defines)
+                    cls = fortran.GnuFortranCompiler
+                    linker = guess_nix_linker(env, compiler, cls, version, for_machine)
+                    return cls(
+                        compiler, version, for_machine, is_cross, info,
+                        exe_wrap, defines, full_version=full_version, linker=linker)
+
+            if 'Arm C/C++/Fortran Compiler' in out:
+                cls = fortran.ArmLtdFlangFortranCompiler
+                arm_ver_match = re.search(r'version (\d+)\.(\d+)\.?(\d+)? \(build number (\d+)\)', out)
+                assert arm_ver_match is not None, 'for mypy'  # because mypy *should* be complaning that this could be None
+                version = '.'.join([x for x in arm_ver_match.groups() if x is not None])
+                linker = guess_nix_linker(env, compiler, cls, version, for_machine)
+                return cls(
+                    compiler, version, for_machine, is_cross, info,
+                    exe_wrap, linker=linker)
+            if 'G95' in out:
+                cls = fortran.G95FortranCompiler
+                linker = guess_nix_linker(env, compiler, cls, version, for_machine)
+                return cls(
+                    compiler, version, for_machine, is_cross, info,
+                    exe_wrap, full_version=full_version, linker=linker)
+
+            if 'Sun Fortran' in err:
+                version = search_version(err)
+                cls = fortran.SunFortranCompiler
+                linker = guess_nix_linker(env, compiler, cls, version, for_machine)
+                return cls(
+                    compiler, version, for_machine, is_cross, info,
+                    exe_wrap, full_version=full_version, linker=linker)
+
+            if 'Intel(R) Fortran Compiler for applications' in err:
+                version = search_version(err)
+                target = 'x86' if 'IA-32' in err else 'x86_64'
+                cls = fortran.IntelLLVMClFortranCompiler
+                env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+                linker = linkers.XilinkDynamicLinker(for_machine, [], version=version)
+                return cls(
+                    compiler, version, for_machine, is_cross, info,
+                    target, exe_wrap, linker=linker)
+
+            if 'Intel(R) Visual Fortran' in err or 'Intel(R) Fortran' in err:
+                version = search_version(err)
+                target = 'x86' if 'IA-32' in err else 'x86_64'
+                cls = fortran.IntelClFortranCompiler
+                env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+                linker = linkers.XilinkDynamicLinker(for_machine, [], version=version)
+                return cls(
+                    compiler, version, for_machine, is_cross, info,
+                    target, exe_wrap, linker=linker)
+
+            if 'ifort (IFORT)' in out:
+                cls = fortran.IntelFortranCompiler
+                linker = guess_nix_linker(env, compiler, cls, version, for_machine)
+                return cls(
+                    compiler, version, for_machine, is_cross, info,
+                    exe_wrap, full_version=full_version, linker=linker)
+
+            if 'ifx (IFORT)' in out:
+                cls = fortran.IntelLLVMFortranCompiler
+                linker = guess_nix_linker(env, compiler, cls, version, for_machine)
+                return cls(
+                    compiler, version, for_machine, is_cross, info,
+                    exe_wrap, full_version=full_version, linker=linker)
+
+            if 'PathScale EKOPath(tm)' in err:
+                return fortran.PathScaleFortranCompiler(
+                    compiler, version, for_machine, is_cross, info,
+                    exe_wrap, full_version=full_version)
+
+            if 'PGI Compilers' in out:
+                cls = fortran.PGIFortranCompiler
+                env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+                linker = linkers.PGIDynamicLinker(compiler, for_machine,
+                                                  cls.LINKER_PREFIX, [], version=version)
+                return cls(
+                    compiler, version, for_machine, is_cross, info, exe_wrap,
+                    full_version=full_version, linker=linker)
+
+            if 'NVIDIA Compilers and Tools' in out:
+                cls = fortran.NvidiaHPC_FortranCompiler
+                env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+                linker = linkers.PGIDynamicLinker(compiler, for_machine,
+                                                  cls.LINKER_PREFIX, [], version=version)
+                return cls(
+                    compiler, version, for_machine, is_cross, info, exe_wrap,
+                    full_version=full_version, linker=linker)
+
+            if 'flang' in out or 'clang' in out:
+                cls = fortran.FlangFortranCompiler
+                linker = guess_nix_linker(env,
+                                          compiler, cls, version, for_machine)
+                return cls(
+                    compiler, version, for_machine, is_cross, info,
+                    exe_wrap, full_version=full_version, linker=linker)
+
+            if 'Open64 Compiler Suite' in err:
+                cls = fortran.Open64FortranCompiler
+                linker = guess_nix_linker(env,
+                                          compiler, cls, version, for_machine)
+                return cls(
+                    compiler, version, for_machine, is_cross, info,
+                    exe_wrap, full_version=full_version, linker=linker)
+
+            if 'NAG Fortran' in err:
+                full_version = err.split('\n', 1)[0]
+                version = full_version.split()[-1]
+                cls = fortran.NAGFortranCompiler
+                env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+                linker = linkers.NAGDynamicLinker(
+                    compiler, for_machine, cls.LINKER_PREFIX, [],
+                    version=version)
+                return cls(
+                    compiler, version, for_machine, is_cross, info,
+                    exe_wrap, full_version=full_version, linker=linker)
+
+    _handle_exceptions(popen_exceptions, compilers)
+    raise EnvironmentException('Unreachable code (exception to make mypy happy)')
+
+def detect_objc_compiler(env: 'Environment', for_machine: MachineChoice) -> 'Compiler':
+    return _detect_objc_or_objcpp_compiler(env, 'objc', for_machine)
+
+def detect_objcpp_compiler(env: 'Environment', for_machine: MachineChoice) -> 'Compiler':
+    return _detect_objc_or_objcpp_compiler(env, 'objcpp', for_machine)
+
+def _detect_objc_or_objcpp_compiler(env: 'Environment', lang: str, for_machine: MachineChoice) -> 'Compiler':
+    from . import objc, objcpp
+    popen_exceptions: T.Dict[str, T.Union[Exception, str]] = {}
+    compilers, ccache, exe_wrap = _get_compilers(env, lang, for_machine)
+    is_cross = env.is_cross_build(for_machine)
+    info = env.machines[for_machine]
+    comp: T.Union[T.Type[objc.ObjCCompiler], T.Type[objcpp.ObjCPPCompiler]]
+
+    for compiler in compilers:
+        arg = ['--version']
+        try:
+            p, out, err = Popen_safe(compiler + arg)
+        except OSError as e:
+            popen_exceptions[join_args(compiler + arg)] = e
+            continue
+        version = search_version(out)
+        if 'Free Software Foundation' in out:
+            defines = _get_gnu_compiler_defines(compiler)
+            if not defines:
+                popen_exceptions[join_args(compiler)] = 'no pre-processor defines'
+                continue
+            version = _get_gnu_version_from_defines(defines)
+            comp = objc.GnuObjCCompiler if lang == 'objc' else objcpp.GnuObjCPPCompiler
+            linker = guess_nix_linker(env, compiler, comp, version, for_machine)
+            return comp(
+                ccache, compiler, version, for_machine, is_cross, info,
+                exe_wrap, defines, linker=linker)
+        if 'clang' in out:
+            linker = None
+            defines = _get_clang_compiler_defines(compiler)
+            if not defines:
+                popen_exceptions[join_args(compiler)] = 'no pre-processor defines'
+                continue
+            if 'Apple' in out:
+                comp = objc.AppleClangObjCCompiler if lang == 'objc' else objcpp.AppleClangObjCPPCompiler
+            else:
+                comp = objc.ClangObjCCompiler if lang == 'objc' else objcpp.ClangObjCPPCompiler
+            if 'windows' in out or env.machines[for_machine].is_windows():
+                # If we're in a MINGW context this actually will use a gnu style ld
+                try:
+                    linker = guess_win_linker(env, compiler, comp, version, for_machine)
+                except MesonException:
+                    pass
+
+            if not linker:
+                linker = guess_nix_linker(env, compiler, comp, version, for_machine)
+            return comp(
+                ccache, compiler, version, for_machine,
+                is_cross, info, exe_wrap, linker=linker, defines=defines)
+    _handle_exceptions(popen_exceptions, compilers)
+    raise EnvironmentException('Unreachable code (exception to make mypy happy)')
+
+def detect_java_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler:
+    from .java import JavaCompiler
+    exelist = env.lookup_binary_entry(for_machine, 'java')
+    info = env.machines[for_machine]
+    if exelist is None:
+        # TODO support fallback
+        exelist = [defaults['java'][0]]
+
+    try:
+        p, out, err = Popen_safe(exelist + ['-version'])
+    except OSError:
+        raise EnvironmentException('Could not execute Java compiler: {}'.format(join_args(exelist)))
+    if 'javac' in out or 'javac' in err:
+        version = search_version(err if 'javac' in err else out)
+        if not version or version == 'unknown version':
+            parts = (err if 'javac' in err else out).split()
+            if len(parts) > 1:
+                version = parts[1]
+        comp_class = JavaCompiler
+        env.coredata.add_lang_args(comp_class.language, comp_class, for_machine, env)
+        return comp_class(exelist, version, for_machine, info)
+    raise EnvironmentException('Unknown compiler: ' + join_args(exelist))
+
+def detect_cs_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler:
+    from . import cs
+    compilers, ccache, exe_wrap = _get_compilers(env, 'cs', for_machine)
+    popen_exceptions = {}
+    info = env.machines[for_machine]
+    for comp in compilers:
+        try:
+            p, out, err = Popen_safe(comp + ['--version'])
+        except OSError as e:
+            popen_exceptions[join_args(comp + ['--version'])] = e
+            continue
+
+        version = search_version(out)
+        cls: T.Type[cs.CsCompiler]
+        if 'Mono' in out:
+            cls = cs.MonoCompiler
+        elif "Visual C#" in out:
+            cls = cs.VisualStudioCsCompiler
+        else:
+            continue
+        env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+        return cls(comp, version, for_machine, info)
+
+    _handle_exceptions(popen_exceptions, compilers)
+    raise EnvironmentException('Unreachable code (exception to make mypy happy)')
+
+def detect_cython_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler:
+    """Search for a cython compiler."""
+    from .cython import CythonCompiler
+    compilers, _, _ = _get_compilers(env, 'cython', MachineChoice.BUILD)
+    is_cross = env.is_cross_build(for_machine)
+    info = env.machines[for_machine]
+
+    popen_exceptions: T.Dict[str, Exception] = {}
+    for comp in compilers:
+        try:
+            err = Popen_safe(comp + ['-V'])[2]
+        except OSError as e:
+            popen_exceptions[join_args(comp + ['-V'])] = e
+            continue
+
+        version = search_version(err)
+        if 'Cython' in err:
+            comp_class = CythonCompiler
+            env.coredata.add_lang_args(comp_class.language, comp_class, for_machine, env)
+            return comp_class([], comp, version, for_machine, info, is_cross=is_cross)
+    _handle_exceptions(popen_exceptions, compilers)
+    raise EnvironmentException('Unreachable code (exception to make mypy happy)')
+
+def detect_vala_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler:
+    from .vala import ValaCompiler
+    exelist = env.lookup_binary_entry(MachineChoice.BUILD, 'vala')
+    is_cross = env.is_cross_build(for_machine)
+    info = env.machines[for_machine]
+    if exelist is None:
+        # TODO support fallback
+        exelist = [defaults['vala'][0]]
+
+    try:
+        p, out = Popen_safe(exelist + ['--version'])[0:2]
+    except OSError:
+        raise EnvironmentException('Could not execute Vala compiler: {}'.format(join_args(exelist)))
+    version = search_version(out)
+    if 'Vala' in out:
+        comp_class = ValaCompiler
+        env.coredata.add_lang_args(comp_class.language, comp_class, for_machine, env)
+        return comp_class(exelist, version, for_machine, is_cross, info)
+    raise EnvironmentException('Unknown compiler: ' + join_args(exelist))
+
+def detect_rust_compiler(env: 'Environment', for_machine: MachineChoice) -> RustCompiler:
+    from . import rust
+    from ..linkers import linkers
+    popen_exceptions = {}  # type: T.Dict[str, Exception]
+    compilers, _, exe_wrap = _get_compilers(env, 'rust', for_machine)
+    is_cross = env.is_cross_build(for_machine)
+    info = env.machines[for_machine]
+
+    cc = detect_c_compiler(env, for_machine)
+    is_link_exe = isinstance(cc.linker, linkers.VisualStudioLikeLinkerMixin)
+    override = env.lookup_binary_entry(for_machine, 'rust_ld')
+
+    for compiler in compilers:
+        arg = ['--version']
+        try:
+            out = Popen_safe(compiler + arg)[1]
+        except OSError as e:
+            popen_exceptions[join_args(compiler + arg)] = e
+            continue
+
+        version = search_version(out)
+        cls: T.Type[RustCompiler] = rust.RustCompiler
+
+        # Clippy is a wrapper around rustc, but it doesn't have rustc in it's
+        # output. We can otherwise treat it as rustc.
+        if 'clippy' in out:
+            out = 'rustc'
+            cls = rust.ClippyRustCompiler
+
+        if 'rustc' in out:
+            # On Linux and mac rustc will invoke gcc (clang for mac
+            # presumably) and it can do this windows, for dynamic linking.
+            # this means the easiest way to C compiler for dynamic linking.
+            # figure out what linker to use is to just get the value of the
+            # C compiler and use that as the basis of the rust linker.
+            # However, there are two things we need to change, if CC is not
+            # the default use that, and second add the necessary arguments
+            # to rust to use -fuse-ld
+
+            if any(a.startswith('linker=') for a in compiler):
+                mlog.warning(
+                    'Please do not put -C linker= in your compiler '
+                    'command, set rust_ld=command in your cross file '
+                    'or use the RUST_LD environment variable, otherwise meson '
+                    'will override your selection.')
+
+            compiler = compiler.copy()  # avoid mutating the original list
+
+            if override is None:
+                extra_args: T.Dict[str, T.Union[str, bool]] = {}
+                always_args: T.List[str] = []
+                if is_link_exe:
+                    compiler.extend(cls.use_linker_args(cc.linker.exelist[0], ''))
+                    extra_args['direct'] = True
+                    extra_args['machine'] = cc.linker.machine
+                else:
+                    exelist = cc.linker.exelist + cc.linker.get_always_args()
+                    if 'ccache' in exelist[0]:
+                        del exelist[0]
+                    c = exelist.pop(0)
+                    compiler.extend(cls.use_linker_args(c, ''))
+
+                    # Also ensure that we pass any extra arguments to the linker
+                    for l in exelist:
+                        compiler.extend(['-C', f'link-arg={l}'])
+
+                # This trickery with type() gets us the class of the linker
+                # so we can initialize a new copy for the Rust Compiler
+                # TODO rewrite this without type: ignore
+                assert cc.linker is not None, 'for mypy'
+                if is_link_exe:
+                    linker = type(cc.linker)(for_machine, always_args, exelist=cc.linker.exelist,   # type: ignore
+                                             version=cc.linker.version, **extra_args)               # type: ignore
+                else:
+                    linker = type(cc.linker)(compiler, for_machine, cc.LINKER_PREFIX,
+                                             always_args=always_args, version=cc.linker.version,
+                                             **extra_args)
+            elif 'link' in override[0]:
+                linker = guess_win_linker(env,
+                                          override, cls, version, for_machine, use_linker_prefix=False)
+                # rustc takes linker arguments without a prefix, and
+                # inserts the correct prefix itself.
+                assert isinstance(linker, linkers.VisualStudioLikeLinkerMixin)
+                linker.direct = True
+                compiler.extend(cls.use_linker_args(linker.exelist[0], ''))
+            else:
+                # On linux and macos rust will invoke the c compiler for
+                # linking, on windows it will use lld-link or link.exe.
+                # we will simply ask for the C compiler that corresponds to
+                # it, and use that.
+                cc = _detect_c_or_cpp_compiler(env, 'c', for_machine, override_compiler=override)
+                linker = cc.linker
+
+                # Of course, we're not going to use any of that, we just
+                # need it to get the proper arguments to pass to rustc
+                c = linker.exelist[1] if linker.exelist[0].endswith('ccache') else linker.exelist[0]
+                compiler.extend(cls.use_linker_args(c, ''))
+
+            env.coredata.add_lang_args(cls.language, cls, for_machine, env)
+            return cls(
+                compiler, version, for_machine, is_cross, info, exe_wrap,
+                linker=linker)
+
+    _handle_exceptions(popen_exceptions, compilers)
+    raise EnvironmentException('Unreachable code (exception to make mypy happy)')
+
+def detect_d_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler:
+    from . import c, d
+    info = env.machines[for_machine]
+
+    # Detect the target architecture, required for proper architecture handling on Windows.
+    # MSVC compiler is required for correct platform detection.
+    c_compiler = {'c': detect_c_compiler(env, for_machine)}
+    is_msvc = isinstance(c_compiler['c'], c.VisualStudioCCompiler)
+    if not is_msvc:
+        c_compiler = {}
+
+    # Import here to avoid circular imports
+    from ..environment import detect_cpu_family
+    arch = detect_cpu_family(c_compiler)
+    if is_msvc and arch == 'x86':
+        arch = 'x86_mscoff'
+
+    popen_exceptions = {}
+    is_cross = env.is_cross_build(for_machine)
+    compilers, ccache, exe_wrap = _get_compilers(env, 'd', for_machine)
+    cls: T.Type[d.DCompiler]
+    for exelist in compilers:
+        # Search for a D compiler.
+        # We prefer LDC over GDC unless overridden with the DC
+        # environment variable because LDC has a much more
+        # up to date language version at time (2016).
+        if os.path.basename(exelist[-1]).startswith(('ldmd', 'gdmd')):
+            raise EnvironmentException(
+                f'Meson does not support {exelist[-1]} as it is only a DMD frontend for another compiler.'
+                'Please provide a valid value for DC or unset it so that Meson can resolve the compiler by itself.')
+        try:
+            p, out = Popen_safe(exelist + ['--version'])[0:2]
+        except OSError as e:
+            popen_exceptions[join_args(exelist + ['--version'])] = e
+            continue
+        version = search_version(out)
+        full_version = out.split('\n', 1)[0]
+
+        if 'LLVM D compiler' in out:
+            cls = d.LLVMDCompiler
+            # LDC seems to require a file
+            # We cannot use NamedTemproraryFile on windows, its documented
+            # to not work for our uses. So, just use mkstemp and only have
+            # one path for simplicity.
+            o, f = tempfile.mkstemp('.d')
+            os.close(o)
+
+            try:
+                if info.is_windows() or info.is_cygwin():
+                    objfile = os.path.basename(f)[:-1] + 'obj'
+                    linker = guess_win_linker(env,
+                                              exelist,
+                                              cls, full_version, for_machine,
+                                              use_linker_prefix=True, invoked_directly=False,
+                                              extra_args=[f])
+                else:
+                    # LDC writes an object file to the current working directory.
+                    # Clean it up.
+                    objfile = os.path.basename(f)[:-1] + 'o'
+                    linker = guess_nix_linker(env,
+                                              exelist, cls, full_version, for_machine,
+                                              extra_args=[f])
+            finally:
+                windows_proof_rm(f)
+                windows_proof_rm(objfile)
+
+            return cls(
+                exelist, version, for_machine, info, arch,
+                full_version=full_version, linker=linker, version_output=out)
+        elif 'gdc' in out:
+            cls = d.GnuDCompiler
+            linker = guess_nix_linker(env, exelist, cls, version, for_machine)
+            return cls(
+                exelist, version, for_machine, info, arch,
+                exe_wrapper=exe_wrap, is_cross=is_cross,
+                full_version=full_version, linker=linker)
+        elif 'The D Language Foundation' in out or 'Digital Mars' in out:
+            cls = d.DmdDCompiler
+            # DMD seems to require a file
+            # We cannot use NamedTemproraryFile on windows, its documented
+            # to not work for our uses. So, just use mkstemp and only have
+            # one path for simplicity.
+            o, f = tempfile.mkstemp('.d')
+            os.close(o)
+
+            # DMD as different detection logic for x86 and x86_64
+            arch_arg = '-m64' if arch == 'x86_64' else '-m32'
+
+            try:
+                if info.is_windows() or info.is_cygwin():
+                    objfile = os.path.basename(f)[:-1] + 'obj'
+                    linker = guess_win_linker(env,
+                                              exelist, cls, full_version, for_machine,
+                                              invoked_directly=False, extra_args=[f, arch_arg])
+                else:
+                    objfile = os.path.basename(f)[:-1] + 'o'
+                    linker = guess_nix_linker(env,
+                                              exelist, cls, full_version, for_machine,
+                                              extra_args=[f, arch_arg])
+            finally:
+                windows_proof_rm(f)
+                windows_proof_rm(objfile)
+
+            return cls(
+                exelist, version, for_machine, info, arch,
+                full_version=full_version, linker=linker)
+        raise EnvironmentException('Unknown compiler: ' + join_args(exelist))
+
+    _handle_exceptions(popen_exceptions, compilers)
+    raise EnvironmentException('Unreachable code (exception to make mypy happy)')
+
+def detect_swift_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler:
+    from .swift import SwiftCompiler
+    exelist = env.lookup_binary_entry(for_machine, 'swift')
+    is_cross = env.is_cross_build(for_machine)
+    info = env.machines[for_machine]
+    if exelist is None:
+        # TODO support fallback
+        exelist = [defaults['swift'][0]]
+
+    try:
+        p, _, err = Popen_safe(exelist + ['-v'])
+    except OSError:
+        raise EnvironmentException('Could not execute Swift compiler: {}'.format(join_args(exelist)))
+    version = search_version(err)
+    if 'Swift' in err:
+        # As for 5.0.1 swiftc *requires* a file to check the linker:
+        with tempfile.NamedTemporaryFile(suffix='.swift') as f:
+            cls = SwiftCompiler
+            linker = guess_nix_linker(env,
+                                      exelist, cls, version, for_machine,
+                                      extra_args=[f.name])
+        return cls(
+            exelist, version, for_machine, is_cross, info, linker=linker)
+
+    raise EnvironmentException('Unknown compiler: ' + join_args(exelist))
+
+def detect_nasm_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler:
+    from .asm import NasmCompiler, YasmCompiler
+    compilers, _, _ = _get_compilers(env, 'nasm', for_machine)
+    is_cross = env.is_cross_build(for_machine)
+
+    # We need a C compiler to properly detect the machine info and linker
+    cc = detect_c_compiler(env, for_machine)
+    if not is_cross:
+        from ..environment import detect_machine_info
+        info = detect_machine_info({'c': cc})
+    else:
+        info = env.machines[for_machine]
+
+    popen_exceptions: T.Dict[str, Exception] = {}
+    for comp in compilers:
+        if comp == ['nasm'] and is_windows() and not shutil.which(comp[0]):
+            # nasm is not in PATH on Windows by default
+            default_path = os.path.join(os.environ['ProgramFiles'], 'NASM')
+            comp[0] = shutil.which(comp[0], path=default_path) or comp[0]
+        try:
+            output = Popen_safe(comp + ['--version'])[1]
+        except OSError as e:
+            popen_exceptions[' '.join(comp + ['--version'])] = e
+            continue
+
+        version = search_version(output)
+        if 'NASM' in output:
+            comp_class = NasmCompiler
+            env.coredata.add_lang_args(comp_class.language, comp_class, for_machine, env)
+            return comp_class([], comp, version, for_machine, info, cc.linker, is_cross=is_cross)
+        elif 'yasm' in output:
+            comp_class = YasmCompiler
+            env.coredata.add_lang_args(comp_class.language, comp_class, for_machine, env)
+            return comp_class([], comp, version, for_machine, info, cc.linker, is_cross=is_cross)
+    _handle_exceptions(popen_exceptions, compilers)
+    raise EnvironmentException('Unreachable code (exception to make mypy happy)')
+
+def detect_masm_compiler(env: 'Environment', for_machine: MachineChoice) -> Compiler:
+    # We need a C compiler to properly detect the machine info and linker
+    is_cross = env.is_cross_build(for_machine)
+    cc = detect_c_compiler(env, for_machine)
+    if not is_cross:
+        from ..environment import detect_machine_info
+        info = detect_machine_info({'c': cc})
+    else:
+        info = env.machines[for_machine]
+
+    from .asm import MasmCompiler, MasmARMCompiler
+    comp_class: T.Type[Compiler]
+    if info.cpu_family == 'x86':
+        comp = ['ml']
+        comp_class = MasmCompiler
+        arg = '/?'
+    elif info.cpu_family == 'x86_64':
+        comp = ['ml64']
+        comp_class = MasmCompiler
+        arg = '/?'
+    elif info.cpu_family == 'arm':
+        comp = ['armasm']
+        comp_class = MasmARMCompiler
+        arg = '-h'
+    elif info.cpu_family == 'aarch64':
+        comp = ['armasm64']
+        comp_class = MasmARMCompiler
+        arg = '-h'
+    else:
+        raise EnvironmentException(f'Platform {info.cpu_family} not supported by MASM')
+
+    popen_exceptions: T.Dict[str, Exception] = {}
+    try:
+        output = Popen_safe(comp + [arg])[2]
+        version = search_version(output)
+        env.coredata.add_lang_args(comp_class.language, comp_class, for_machine, env)
+        return comp_class([], comp, version, for_machine, info, cc.linker, is_cross=is_cross)
+    except OSError as e:
+        popen_exceptions[' '.join(comp + [arg])] = e
+    _handle_exceptions(popen_exceptions, [comp])
+    raise EnvironmentException('Unreachable code (exception to make mypy happy)')
+
+# GNU/Clang defines and version
+# =============================
+
+def _get_gnu_compiler_defines(compiler: T.List[str]) -> T.Dict[str, str]:
+    """
+    Detect GNU compiler platform type (Apple, MinGW, Unix)
+    """
+    # Arguments to output compiler pre-processor defines to stdout
+    # gcc, g++, and gfortran all support these arguments
+    args = compiler + ['-E', '-dM', '-']
+    mlog.debug(f'Running command: {join_args(args)}')
+    p, output, error = Popen_safe(args, write='', stdin=subprocess.PIPE)
+    if p.returncode != 0:
+        raise EnvironmentException('Unable to detect GNU compiler type:\n'
+                                   f'Compiler stdout:\n{output}\n-----\n'
+                                   f'Compiler stderr:\n{error}\n-----\n')
+    # Parse several lines of the type:
+    # `#define ___SOME_DEF some_value`
+    # and extract `___SOME_DEF`
+    defines: T.Dict[str, str] = {}
+    for line in output.split('\n'):
+        if not line:
+            continue
+        d, *rest = line.split(' ', 2)
+        if d != '#define':
+            continue
+        if len(rest) == 1:
+            defines[rest[0]] = ''
+        if len(rest) == 2:
+            defines[rest[0]] = rest[1]
+    return defines
+
+def _get_clang_compiler_defines(compiler: T.List[str]) -> T.Dict[str, str]:
+    """
+    Get the list of Clang pre-processor defines
+    """
+    args = compiler + ['-E', '-dM', '-']
+    mlog.debug(f'Running command: {join_args(args)}')
+    p, output, error = Popen_safe(args, write='', stdin=subprocess.PIPE)
+    if p.returncode != 0:
+        raise EnvironmentException('Unable to get clang pre-processor defines:\n'
+                                   f'Compiler stdout:\n{output}\n-----\n'
+                                   f'Compiler stderr:\n{error}\n-----\n')
+    defines: T.Dict[str, str] = {}
+    for line in output.split('\n'):
+        if not line:
+            continue
+        d, *rest = line.split(' ', 2)
+        if d != '#define':
+            continue
+        if len(rest) == 1:
+            defines[rest[0]] = ''
+        if len(rest) == 2:
+            defines[rest[0]] = rest[1]
+    return defines
+
+def _get_gnu_version_from_defines(defines: T.Dict[str, str]) -> str:
+    dot = '.'
+    major = defines.get('__GNUC__', '0')
+    minor = defines.get('__GNUC_MINOR__', '0')
+    patch = defines.get('__GNUC_PATCHLEVEL__', '0')
+    return dot.join((major, minor, patch))
+
+def _get_lcc_version_from_defines(defines: T.Dict[str, str]) -> str:
+    dot = '.'
+    generation_and_major = defines.get('__LCC__', '100')
+    generation = generation_and_major[:1]
+    major = generation_and_major[1:]
+    minor = defines.get('__LCC_MINOR__', '0')
+    return dot.join((generation, major, minor))
diff --git a/mesonbuild/compilers/fortran.py b/mesonbuild/compilers/fortran.py
new file mode 100644
index 0000000..90ca010
--- /dev/null
+++ b/mesonbuild/compilers/fortran.py
@@ -0,0 +1,546 @@
+# Copyright 2012-2017 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import typing as T
+import os
+
+from .. import coredata
+from .compilers import (
+    clike_debug_args,
+    Compiler,
+)
+from .mixins.clike import CLikeCompiler
+from .mixins.gnu import (
+    GnuCompiler, gnulike_buildtype_args, gnu_optimization_args
+)
+from .mixins.intel import IntelGnuLikeCompiler, IntelVisualStudioLikeCompiler
+from .mixins.clang import ClangCompiler
+from .mixins.elbrus import ElbrusCompiler
+from .mixins.pgi import PGICompiler
+
+from mesonbuild.mesonlib import (
+    version_compare, MesonException,
+    LibType, OptionKey,
+)
+
+if T.TYPE_CHECKING:
+    from ..coredata import MutableKeyedOptionDictType, KeyedOptionDictType
+    from ..dependencies import Dependency
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..linkers import DynamicLinker
+    from ..mesonlib import MachineChoice
+    from ..programs import ExternalProgram
+    from .compilers import CompileCheckMode
+
+
+class FortranCompiler(CLikeCompiler, Compiler):
+
+    language = 'fortran'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        Compiler.__init__(self, [], exelist, version, for_machine, info,
+                          is_cross=is_cross, full_version=full_version, linker=linker)
+        CLikeCompiler.__init__(self, exe_wrapper)
+
+    def has_function(self, funcname: str, prefix: str, env: 'Environment', *,
+                     extra_args: T.Optional[T.List[str]] = None,
+                     dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        raise MesonException('Fortran does not have "has_function" capability.\n'
+                             'It is better to test if a Fortran capability is working like:\n\n'
+                             "meson.get_compiler('fortran').links('block; end block; end program')\n\n"
+                             'that example is to see if the compiler has Fortran 2008 Block element.')
+
+    def _get_basic_compiler_args(self, env: 'Environment', mode: CompileCheckMode) -> T.Tuple[T.List[str], T.List[str]]:
+        cargs = env.coredata.get_external_args(self.for_machine, self.language)
+        largs = env.coredata.get_external_link_args(self.for_machine, self.language)
+        return cargs, largs
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        source_name = 'sanitycheckf.f90'
+        code = 'program main; print *, "Fortran compilation is working."; end program\n'
+        return self._sanity_check_impl(work_dir, environment, source_name, code)
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return gnulike_buildtype_args[buildtype]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return gnu_optimization_args[optimization_level]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return clike_debug_args[is_debug]
+
+    def get_preprocess_only_args(self) -> T.List[str]:
+        return ['-cpp'] + super().get_preprocess_only_args()
+
+    def get_module_incdir_args(self) -> T.Tuple[str, ...]:
+        return ('-I', )
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['-module', path]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '-L':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+
+        return parameter_list
+
+    def module_name_to_filename(self, module_name: str) -> str:
+        if '_' in module_name:  # submodule
+            s = module_name.lower()
+            if self.id in {'gcc', 'intel', 'intel-cl'}:
+                filename = s.replace('_', '@') + '.smod'
+            elif self.id in {'pgi', 'flang'}:
+                filename = s.replace('_', '-') + '.mod'
+            else:
+                filename = s + '.mod'
+        else:  # module
+            filename = module_name.lower() + '.mod'
+
+        return filename
+
+    def find_library(self, libname: str, env: 'Environment', extra_dirs: T.List[str],
+                     libtype: LibType = LibType.PREFER_SHARED) -> T.Optional[T.List[str]]:
+        code = 'stop; end program'
+        return self._find_library_impl(libname, env, extra_dirs, code, libtype)
+
+    def has_multi_arguments(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]:
+        return self._has_multi_arguments(args, env, 'stop; end program')
+
+    def has_multi_link_arguments(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]:
+        return self._has_multi_link_arguments(args, env, 'stop; end program')
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = super().get_options()
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts.update({
+            key: coredata.UserComboOption(
+                'Fortran language standard to use',
+                ['none'],
+                'none',
+            ),
+        })
+        return opts
+
+
+class GnuFortranCompiler(GnuCompiler, FortranCompiler):
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        GnuCompiler.__init__(self, defines)
+        default_warn_args = ['-Wall']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic', '-fimplicit-none'],
+                          'everything': default_warn_args + ['-Wextra', '-Wpedantic', '-fimplicit-none']}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = FortranCompiler.get_options(self)
+        fortran_stds = ['legacy', 'f95', 'f2003']
+        if version_compare(self.version, '>=4.4.0'):
+            fortran_stds += ['f2008']
+        if version_compare(self.version, '>=8.0.0'):
+            fortran_stds += ['f2018']
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none'] + fortran_stds
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            args.append('-std=' + std.value)
+        return args
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        # Disabled until this is fixed:
+        # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62162
+        # return ['-cpp', '-MD', '-MQ', outtarget]
+        return []
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['-J' + path]
+
+    def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
+        # We need to apply the search prefix here, as these link arguments may
+        # be passed to a different compiler with a different set of default
+        # search paths, such as when using Clang for C/C++ and gfortran for
+        # fortran,
+        search_dirs: T.List[str] = []
+        for d in self.get_compiler_dirs(env, 'libraries'):
+            search_dirs.append(f'-L{d}')
+        return search_dirs + ['-lgfortran', '-lm']
+
+    def has_header(self, hname: str, prefix: str, env: 'Environment', *,
+                   extra_args: T.Union[None, T.List[str], T.Callable[['CompileCheckMode'], T.List[str]]] = None,
+                   dependencies: T.Optional[T.List['Dependency']] = None,
+                   disable_cache: bool = False) -> T.Tuple[bool, bool]:
+        '''
+        Derived from mixins/clike.py:has_header, but without C-style usage of
+        __has_include which breaks with GCC-Fortran 10:
+        https://github.com/mesonbuild/meson/issues/7017
+        '''
+        code = f'{prefix}\n#include <{hname}>'
+        return self.compiles(code, env, extra_args=extra_args,
+                             dependencies=dependencies, mode='preprocess', disable_cache=disable_cache)
+
+
+class ElbrusFortranCompiler(ElbrusCompiler, FortranCompiler):
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine, is_cross,
+                                 info, exe_wrapper, linker=linker, full_version=full_version)
+        ElbrusCompiler.__init__(self)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = FortranCompiler.get_options(self)
+        fortran_stds = ['f95', 'f2003', 'f2008', 'gnu', 'legacy', 'f2008ts']
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none'] + fortran_stds
+        return opts
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['-J' + path]
+
+
+class G95FortranCompiler(FortranCompiler):
+
+    LINKER_PREFIX = '-Wl,'
+    id = 'g95'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        default_warn_args = ['-Wall']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-pedantic'],
+                          'everything': default_warn_args + ['-Wextra', '-pedantic']}
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['-fmod=' + path]
+
+    def get_no_warn_args(self) -> T.List[str]:
+        # FIXME: Confirm that there's no compiler option to disable all warnings
+        return []
+
+
+class SunFortranCompiler(FortranCompiler):
+
+    LINKER_PREFIX = '-Wl,'
+    id = 'sun'
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['-fpp']
+
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        return []
+
+    def get_module_incdir_args(self) -> T.Tuple[str, ...]:
+        return ('-M', )
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['-moddir=' + path]
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['-xopenmp']
+
+
+class IntelFortranCompiler(IntelGnuLikeCompiler, FortranCompiler):
+
+    file_suffixes = ('f90', 'f', 'for', 'ftn', 'fpp', )
+    id = 'intel'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        # FIXME: Add support for OS X and Windows in detect_fortran_compiler so
+        # we are sent the type of compiler
+        IntelGnuLikeCompiler.__init__(self)
+        default_warn_args = ['-warn', 'general', '-warn', 'truncated_source']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-warn', 'unused'],
+                          '3': ['-warn', 'all'],
+                          'everything': ['-warn', 'all']}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = FortranCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'legacy', 'f95', 'f2003', 'f2008', 'f2018']
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        stds = {'legacy': 'none', 'f95': 'f95', 'f2003': 'f03', 'f2008': 'f08', 'f2018': 'f18'}
+        if std.value != 'none':
+            args.append('-stand=' + stds[std.value])
+        return args
+
+    def get_preprocess_only_args(self) -> T.List[str]:
+        return ['-cpp', '-EP']
+
+    def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
+        # TODO: needs default search path added
+        return ['-lifcore', '-limf']
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['-gen-dep=' + outtarget, '-gen-depformat=make']
+
+
+class IntelLLVMFortranCompiler(IntelFortranCompiler):
+
+    id = 'intel-llvm'
+
+
+class IntelClFortranCompiler(IntelVisualStudioLikeCompiler, FortranCompiler):
+
+    file_suffixes = ('f90', 'f', 'for', 'ftn', 'fpp', )
+    always_args = ['/nologo']
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo', target: str,
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        IntelVisualStudioLikeCompiler.__init__(self, target)
+
+        default_warn_args = ['/warn:general', '/warn:truncated_source']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['/warn:unused'],
+                          '3': ['/warn:all'],
+                          'everything': ['/warn:all']}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = FortranCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'legacy', 'f95', 'f2003', 'f2008', 'f2018']
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        stds = {'legacy': 'none', 'f95': 'f95', 'f2003': 'f03', 'f2008': 'f08', 'f2018': 'f18'}
+        if std.value != 'none':
+            args.append('/stand:' + stds[std.value])
+        return args
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['/module:' + path]
+
+
+class IntelLLVMClFortranCompiler(IntelClFortranCompiler):
+
+    id = 'intel-llvm-cl'
+
+class PathScaleFortranCompiler(FortranCompiler):
+
+    id = 'pathscale'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        default_warn_args = ['-fullwarn']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args,
+                          '3': default_warn_args,
+                          'everything': default_warn_args}
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['-mp']
+
+
+class PGIFortranCompiler(PGICompiler, FortranCompiler):
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        PGICompiler.__init__(self)
+
+        default_warn_args = ['-Minform=inform']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args,
+                          '3': default_warn_args + ['-Mdclchk'],
+                          'everything': default_warn_args + ['-Mdclchk']}
+
+    def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
+        # TODO: needs default search path added
+        return ['-lpgf90rtl', '-lpgf90', '-lpgf90_rpm1', '-lpgf902',
+                '-lpgf90rtl', '-lpgftnrtl', '-lrt']
+
+
+class NvidiaHPC_FortranCompiler(PGICompiler, FortranCompiler):
+
+    id = 'nvidia_hpc'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        PGICompiler.__init__(self)
+
+        default_warn_args = ['-Minform=inform']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args,
+                          '3': default_warn_args + ['-Mdclchk'],
+                          'everything': default_warn_args + ['-Mdclchk']}
+
+
+class FlangFortranCompiler(ClangCompiler, FortranCompiler):
+
+    id = 'flang'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        ClangCompiler.__init__(self, {})
+        default_warn_args = ['-Minform=inform']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args,
+                          '3': default_warn_args,
+                          'everything': default_warn_args}
+
+    def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
+        # We need to apply the search prefix here, as these link arguments may
+        # be passed to a different compiler with a different set of default
+        # search paths, such as when using Clang for C/C++ and gfortran for
+        # fortran,
+        # XXX: Untested....
+        search_dirs: T.List[str] = []
+        for d in self.get_compiler_dirs(env, 'libraries'):
+            search_dirs.append(f'-L{d}')
+        return search_dirs + ['-lflang', '-lpgmath']
+
+class ArmLtdFlangFortranCompiler(FlangFortranCompiler):
+
+    id = 'armltdflang'
+
+class Open64FortranCompiler(FortranCompiler):
+
+    id = 'open64'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        default_warn_args = ['-fullwarn']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args,
+                          '3': default_warn_args,
+                          'everything': default_warn_args}
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['-mp']
+
+
+class NAGFortranCompiler(FortranCompiler):
+
+    id = 'nagfor'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        # Warnings are on by default; -w disables (by category):
+        self.warn_args = {
+            '0': ['-w=all'],
+            '1': [],
+            '2': [],
+            '3': [],
+            'everything': [],
+        }
+
+    def get_always_args(self) -> T.List[str]:
+        return self.get_nagfor_quiet(self.version)
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['-mdir', path]
+
+    @staticmethod
+    def get_nagfor_quiet(version: str) -> T.List[str]:
+        return ['-quiet'] if version_compare(version, '>=7100') else []
+
+    def get_pic_args(self) -> T.List[str]:
+        return ['-PIC']
+
+    def get_preprocess_only_args(self) -> T.List[str]:
+        return ['-fpp']
+
+    def get_std_exe_link_args(self) -> T.List[str]:
+        return self.get_always_args()
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['-openmp']
diff --git a/mesonbuild/compilers/java.py b/mesonbuild/compilers/java.py
new file mode 100644
index 0000000..ebae509
--- /dev/null
+++ b/mesonbuild/compilers/java.py
@@ -0,0 +1,125 @@
+# Copyright 2012-2017 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import os
+import os.path
+import shutil
+import subprocess
+import textwrap
+import typing as T
+
+from ..mesonlib import EnvironmentException
+from .compilers import Compiler, java_buildtype_args
+from .mixins.islinker import BasicLinkerIsCompilerMixin
+
+if T.TYPE_CHECKING:
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..mesonlib import MachineChoice
+
+class JavaCompiler(BasicLinkerIsCompilerMixin, Compiler):
+
+    language = 'java'
+    id = 'unknown'
+
+    _WARNING_LEVELS: T.Dict[str, T.List[str]] = {
+        '0': ['-nowarn'],
+        '1': ['-Xlint:all'],
+        '2': ['-Xlint:all', '-Xdoclint:all'],
+        '3': ['-Xlint:all', '-Xdoclint:all'],
+    }
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 info: 'MachineInfo', full_version: T.Optional[str] = None):
+        super().__init__([], exelist, version, for_machine, info, full_version=full_version)
+        self.javarunner = 'java'
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        return self._WARNING_LEVELS[level]
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['-Werror']
+
+    def get_no_warn_args(self) -> T.List[str]:
+        return ['-nowarn']
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        if outputname == '':
+            outputname = './'
+        return ['-d', outputname, '-s', outputname]
+
+    def get_pic_args(self) -> T.List[str]:
+        return []
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        return []
+
+    def get_pch_name(self, name: str) -> str:
+        return ''
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return java_buildtype_args[buildtype]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i in {'-cp', '-classpath', '-sourcepath'} and idx + 1 < len(parameter_list):
+                path_list = parameter_list[idx + 1].split(os.pathsep)
+                path_list = [os.path.normpath(os.path.join(build_dir, x)) for x in path_list]
+                parameter_list[idx + 1] = os.pathsep.join(path_list)
+
+        return parameter_list
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        src = 'SanityCheck.java'
+        obj = 'SanityCheck'
+        source_name = os.path.join(work_dir, src)
+        with open(source_name, 'w', encoding='utf-8') as ofile:
+            ofile.write(textwrap.dedent(
+                '''class SanityCheck {
+                  public static void main(String[] args) {
+                    int i;
+                  }
+                }
+                '''))
+        pc = subprocess.Popen(self.exelist + [src], cwd=work_dir)
+        pc.wait()
+        if pc.returncode != 0:
+            raise EnvironmentException(f'Java compiler {self.name_string()} can not compile programs.')
+        runner = shutil.which(self.javarunner)
+        if runner:
+            cmdlist = [runner, obj]
+            pe = subprocess.Popen(cmdlist, cwd=work_dir)
+            pe.wait()
+            if pe.returncode != 0:
+                raise EnvironmentException(f'Executables created by Java compiler {self.name_string()} are not runnable.')
+        else:
+            m = "Java Virtual Machine wasn't found, but it's needed by Meson. " \
+                "Please install a JRE.\nIf you have specific needs where this " \
+                "requirement doesn't make sense, please open a bug at " \
+                "https://github.com/mesonbuild/meson/issues/new and tell us " \
+                "all about it."
+            raise EnvironmentException(m)
+
+    def needs_static_linker(self) -> bool:
+        return False
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return []
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        if is_debug:
+            return ['-g']
+        return ['-g:none']
diff --git a/mesonbuild/compilers/mixins/__init__.py b/mesonbuild/compilers/mixins/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/mesonbuild/compilers/mixins/__init__.py
diff --git a/mesonbuild/compilers/mixins/arm.py b/mesonbuild/compilers/mixins/arm.py
new file mode 100644
index 0000000..5d0fb87
--- /dev/null
+++ b/mesonbuild/compilers/mixins/arm.py
@@ -0,0 +1,199 @@
+# Copyright 2012-2020 Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Representations specific to the arm family of compilers."""
+
+import os
+import typing as T
+
+from ... import mesonlib
+from ...linkers import ArmClangDynamicLinker
+from ...mesonlib import OptionKey
+from ..compilers import clike_debug_args
+from .clang import clang_color_args
+
+if T.TYPE_CHECKING:
+    from ...environment import Environment
+    from ...compilers.compilers import Compiler
+else:
+    # This is a bit clever, for mypy we pretend that these mixins descend from
+    # Compiler, so we get all of the methods and attributes defined for us, but
+    # for runtime we make them descend from object (which all classes normally
+    # do). This gives up DRYer type checking, with no runtime impact
+    Compiler = object
+
+arm_buildtype_args = {
+    'plain': [],
+    'debug': [],
+    'debugoptimized': [],
+    'release': [],
+    'minsize': [],
+    'custom': [],
+}  # type: T.Dict[str, T.List[str]]
+
+arm_optimization_args = {
+    'plain': [],
+    '0': ['-O0'],
+    'g': ['-g'],
+    '1': ['-O1'],
+    '2': [], # Compiler defaults to -O2
+    '3': ['-O3', '-Otime'],
+    's': ['-O3'], # Compiler defaults to -Ospace
+}  # type: T.Dict[str, T.List[str]]
+
+armclang_buildtype_args = {
+    'plain': [],
+    'debug': [],
+    'debugoptimized': [],
+    'release': [],
+    'minsize': [],
+    'custom': [],
+}  # type: T.Dict[str, T.List[str]]
+
+armclang_optimization_args = {
+    'plain': [],
+    '0': [], # Compiler defaults to -O0
+    'g': ['-g'],
+    '1': ['-O1'],
+    '2': ['-O2'],
+    '3': ['-O3'],
+    's': ['-Oz']
+}  # type: T.Dict[str, T.List[str]]
+
+
+class ArmCompiler(Compiler):
+
+    """Functionality that is common to all ARM family compilers."""
+
+    id = 'arm'
+
+    def __init__(self) -> None:
+        if not self.is_cross:
+            raise mesonlib.EnvironmentException('armcc supports only cross-compilation.')
+        default_warn_args = []  # type: T.List[str]
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + [],
+                          '3': default_warn_args + [],
+                          'everything': default_warn_args + []}  # type: T.Dict[str, T.List[str]]
+        # Assembly
+        self.can_compile_suffixes.add('s')
+
+    def get_pic_args(self) -> T.List[str]:
+        # FIXME: Add /ropi, /rwpi, /fpic etc. qualifiers to --apcs
+        return []
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return arm_buildtype_args[buildtype]
+
+    # Override CCompiler.get_always_args
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['--depend_target', outtarget, '--depend', outfile, '--depend_single_line']
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        # FIXME: Add required arguments
+        # NOTE from armcc user guide:
+        # "Support for Precompiled Header (PCH) files is deprecated from ARM Compiler 5.05
+        # onwards on all platforms. Note that ARM Compiler on Windows 8 never supported
+        # PCH files."
+        return []
+
+    def get_pch_suffix(self) -> str:
+        # NOTE from armcc user guide:
+        # "Support for Precompiled Header (PCH) files is deprecated from ARM Compiler 5.05
+        # onwards on all platforms. Note that ARM Compiler on Windows 8 never supported
+        # PCH files."
+        return 'pch'
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def get_coverage_args(self) -> T.List[str]:
+        return []
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return arm_optimization_args[optimization_level]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return clike_debug_args[is_debug]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str], build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '-L':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+
+        return parameter_list
+
+
+class ArmclangCompiler(Compiler):
+    '''
+    This is the Keil armclang.
+    '''
+
+    id = 'armclang'
+
+    def __init__(self) -> None:
+        if not self.is_cross:
+            raise mesonlib.EnvironmentException('armclang supports only cross-compilation.')
+        # Check whether 'armlink' is available in path
+        if not isinstance(self.linker, ArmClangDynamicLinker):
+            raise mesonlib.EnvironmentException(f'Unsupported Linker {self.linker.exelist}, must be armlink')
+        if not mesonlib.version_compare(self.version, '==' + self.linker.version):
+            raise mesonlib.EnvironmentException('armlink version does not match with compiler version')
+        self.base_options = {
+            OptionKey(o) for o in
+            ['b_pch', 'b_lto', 'b_pgo', 'b_sanitize', 'b_coverage',
+             'b_ndebug', 'b_staticpic', 'b_colorout']}
+        # Assembly
+        self.can_compile_suffixes.add('s')
+
+    def get_pic_args(self) -> T.List[str]:
+        # PIC support is not enabled by default for ARM,
+        # if users want to use it, they need to add the required arguments explicitly
+        return []
+
+    def get_colorout_args(self, colortype: str) -> T.List[str]:
+        return clang_color_args[colortype][:]
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return armclang_buildtype_args[buildtype]
+
+    def get_pch_suffix(self) -> str:
+        return 'gch'
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        # Workaround for Clang bug http://llvm.org/bugs/show_bug.cgi?id=15136
+        # This flag is internal to Clang (or at least not documented on the man page)
+        # so it might change semantics at any time.
+        return ['-include-pch', os.path.join(pch_dir, self.get_pch_name(header))]
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['-MD', '-MT', outtarget, '-MF', outfile]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return armclang_optimization_args[optimization_level]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return clike_debug_args[is_debug]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str], build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '-L':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+
+        return parameter_list
diff --git a/mesonbuild/compilers/mixins/ccrx.py b/mesonbuild/compilers/mixins/ccrx.py
new file mode 100644
index 0000000..1c22214
--- /dev/null
+++ b/mesonbuild/compilers/mixins/ccrx.py
@@ -0,0 +1,134 @@
+# Copyright 2012-2019 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Representations specific to the Renesas CC-RX compiler family."""
+
+import os
+import typing as T
+
+from ...mesonlib import EnvironmentException
+
+if T.TYPE_CHECKING:
+    from ...envconfig import MachineInfo
+    from ...environment import Environment
+    from ...compilers.compilers import Compiler
+else:
+    # This is a bit clever, for mypy we pretend that these mixins descend from
+    # Compiler, so we get all of the methods and attributes defined for us, but
+    # for runtime we make them descend from object (which all classes normally
+    # do). This gives up DRYer type checking, with no runtime impact
+    Compiler = object
+
+ccrx_buildtype_args = {
+    'plain': [],
+    'debug': [],
+    'debugoptimized': [],
+    'release': [],
+    'minsize': [],
+    'custom': [],
+}  # type: T.Dict[str, T.List[str]]
+
+ccrx_optimization_args = {
+    '0': ['-optimize=0'],
+    'g': ['-optimize=0'],
+    '1': ['-optimize=1'],
+    '2': ['-optimize=2'],
+    '3': ['-optimize=max'],
+    's': ['-optimize=2', '-size']
+}  # type: T.Dict[str, T.List[str]]
+
+ccrx_debug_args = {
+    False: [],
+    True: ['-debug']
+}  # type: T.Dict[bool, T.List[str]]
+
+
+class CcrxCompiler(Compiler):
+
+    if T.TYPE_CHECKING:
+        is_cross = True
+        can_compile_suffixes = set()  # type: T.Set[str]
+
+    id = 'ccrx'
+
+    def __init__(self) -> None:
+        if not self.is_cross:
+            raise EnvironmentException('ccrx supports only cross-compilation.')
+        # Assembly
+        self.can_compile_suffixes.add('src')
+        default_warn_args = []  # type: T.List[str]
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + [],
+                          '3': default_warn_args + [],
+                          'everything': default_warn_args + []}  # type: T.Dict[str, T.List[str]]
+
+    def get_pic_args(self) -> T.List[str]:
+        # PIC support is not enabled by default for CCRX,
+        # if users want to use it, they need to add the required arguments explicitly
+        return []
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return ccrx_buildtype_args[buildtype]
+
+    def get_pch_suffix(self) -> str:
+        return 'pch'
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        return []
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def get_coverage_args(self) -> T.List[str]:
+        return []
+
+    def get_no_stdinc_args(self) -> T.List[str]:
+        return []
+
+    def get_no_stdlib_link_args(self) -> T.List[str]:
+        return []
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return ccrx_optimization_args[optimization_level]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return ccrx_debug_args[is_debug]
+
+    @classmethod
+    def _unix_args_to_native(cls, args: T.List[str], info: MachineInfo) -> T.List[str]:
+        result = []
+        for i in args:
+            if i.startswith('-D'):
+                i = '-define=' + i[2:]
+            if i.startswith('-I'):
+                i = '-include=' + i[2:]
+            if i.startswith('-Wl,-rpath='):
+                continue
+            elif i == '--print-search-dirs':
+                continue
+            elif i.startswith('-L'):
+                continue
+            elif not i.startswith('-lib=') and i.endswith(('.a', '.lib')):
+                i = '-lib=' + i
+            result.append(i)
+        return result
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str], build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:9] == '-include=':
+                parameter_list[idx] = i[:9] + os.path.normpath(os.path.join(build_dir, i[9:]))
+
+        return parameter_list
diff --git a/mesonbuild/compilers/mixins/clang.py b/mesonbuild/compilers/mixins/clang.py
new file mode 100644
index 0000000..cdb4c23
--- /dev/null
+++ b/mesonbuild/compilers/mixins/clang.py
@@ -0,0 +1,180 @@
+# Copyright 2019-2022 The meson development team
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Abstractions for the LLVM/Clang compiler family."""
+
+import os
+import shutil
+import typing as T
+
+from ... import mesonlib
+from ...linkers import AppleDynamicLinker, ClangClDynamicLinker, LLVMDynamicLinker, GnuGoldDynamicLinker, \
+    MoldDynamicLinker
+from ...mesonlib import OptionKey
+from ..compilers import CompileCheckMode
+from .gnu import GnuLikeCompiler
+
+if T.TYPE_CHECKING:
+    from ...environment import Environment
+    from ...dependencies import Dependency  # noqa: F401
+
+clang_color_args = {
+    'auto': ['-fcolor-diagnostics'],
+    'always': ['-fcolor-diagnostics'],
+    'never': ['-fno-color-diagnostics'],
+}  # type: T.Dict[str, T.List[str]]
+
+clang_optimization_args = {
+    'plain': [],
+    '0': ['-O0'],
+    'g': ['-Og'],
+    '1': ['-O1'],
+    '2': ['-O2'],
+    '3': ['-O3'],
+    's': ['-Oz'],
+}  # type: T.Dict[str, T.List[str]]
+
+class ClangCompiler(GnuLikeCompiler):
+
+    id = 'clang'
+
+    def __init__(self, defines: T.Optional[T.Dict[str, str]]):
+        super().__init__()
+        self.defines = defines or {}
+        self.base_options.update(
+            {OptionKey('b_colorout'), OptionKey('b_lto_threads'), OptionKey('b_lto_mode'), OptionKey('b_thinlto_cache'),
+             OptionKey('b_thinlto_cache_dir')})
+
+        # TODO: this really should be part of the linker base_options, but
+        # linkers don't have base_options.
+        if isinstance(self.linker, AppleDynamicLinker):
+            self.base_options.add(OptionKey('b_bitcode'))
+        # All Clang backends can also do LLVM IR
+        self.can_compile_suffixes.add('ll')
+
+    def get_colorout_args(self, colortype: str) -> T.List[str]:
+        return clang_color_args[colortype][:]
+
+    def has_builtin_define(self, define: str) -> bool:
+        return define in self.defines
+
+    def get_builtin_define(self, define: str) -> T.Optional[str]:
+        return self.defines.get(define)
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return clang_optimization_args[optimization_level]
+
+    def get_pch_suffix(self) -> str:
+        return 'pch'
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        # Workaround for Clang bug http://llvm.org/bugs/show_bug.cgi?id=15136
+        # This flag is internal to Clang (or at least not documented on the man page)
+        # so it might change semantics at any time.
+        return ['-include-pch', os.path.join(pch_dir, self.get_pch_name(header))]
+
+    def get_compiler_check_args(self, mode: CompileCheckMode) -> T.List[str]:
+        # Clang is different than GCC, it will return True when a symbol isn't
+        # defined in a header. Specifically this seems to have something to do
+        # with functions that may be in a header on some systems, but not all of
+        # them. `strlcat` specifically with can trigger this.
+        myargs: T.List[str] = ['-Werror=implicit-function-declaration']
+        if mode is CompileCheckMode.COMPILE:
+            myargs.extend(['-Werror=unknown-warning-option', '-Werror=unused-command-line-argument'])
+            if mesonlib.version_compare(self.version, '>=3.6.0'):
+                myargs.append('-Werror=ignored-optimization-argument')
+        return super().get_compiler_check_args(mode) + myargs
+
+    def has_function(self, funcname: str, prefix: str, env: 'Environment', *,
+                     extra_args: T.Optional[T.List[str]] = None,
+                     dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        if extra_args is None:
+            extra_args = []
+        # Starting with XCode 8, we need to pass this to force linker
+        # visibility to obey OS X/iOS/tvOS minimum version targets with
+        # -mmacosx-version-min, -miphoneos-version-min, -mtvos-version-min etc.
+        # https://github.com/Homebrew/homebrew-core/issues/3727
+        # TODO: this really should be communicated by the linker
+        if isinstance(self.linker, AppleDynamicLinker) and mesonlib.version_compare(self.version, '>=8.0'):
+            extra_args.append('-Wl,-no_weak_imports')
+        return super().has_function(funcname, prefix, env, extra_args=extra_args,
+                                    dependencies=dependencies)
+
+    def openmp_flags(self) -> T.List[str]:
+        if mesonlib.version_compare(self.version, '>=3.8.0'):
+            return ['-fopenmp']
+        elif mesonlib.version_compare(self.version, '>=3.7.0'):
+            return ['-fopenmp=libomp']
+        else:
+            # Shouldn't work, but it'll be checked explicitly in the OpenMP dependency.
+            return []
+
+    @classmethod
+    def use_linker_args(cls, linker: str, version: str) -> T.List[str]:
+        # Clang additionally can use a linker specified as a path, which GCC
+        # (and other gcc-like compilers) cannot. This is because clang (being
+        # llvm based) is retargetable, while GCC is not.
+        #
+
+        # qcld: Qualcomm Snapdragon linker, based on LLVM
+        if linker == 'qcld':
+            return ['-fuse-ld=qcld']
+        if linker == 'mold':
+            return ['-fuse-ld=mold']
+
+        if shutil.which(linker):
+            if not shutil.which(linker):
+                raise mesonlib.MesonException(
+                    f'Cannot find linker {linker}.')
+            return [f'-fuse-ld={linker}']
+        return super().use_linker_args(linker, version)
+
+    def get_has_func_attribute_extra_args(self, name: str) -> T.List[str]:
+        # Clang only warns about unknown or ignored attributes, so force an
+        # error.
+        return ['-Werror=attributes']
+
+    def get_coverage_link_args(self) -> T.List[str]:
+        return ['--coverage']
+
+    def get_lto_compile_args(self, *, threads: int = 0, mode: str = 'default') -> T.List[str]:
+        args: T.List[str] = []
+        if mode == 'thin':
+            # ThinLTO requires the use of gold, lld, ld64, lld-link or mold 1.1+
+            if isinstance(self.linker, (MoldDynamicLinker)):
+                # https://github.com/rui314/mold/commit/46995bcfc3e3113133620bf16445c5f13cd76a18
+                if not mesonlib.version_compare(self.linker.version, '>=1.1'):
+                    raise mesonlib.MesonException("LLVM's ThinLTO requires mold 1.1+")
+            elif not isinstance(self.linker, (AppleDynamicLinker, ClangClDynamicLinker, LLVMDynamicLinker, GnuGoldDynamicLinker)):
+                raise mesonlib.MesonException(f"LLVM's ThinLTO only works with gold, lld, lld-link, ld64 or mold, not {self.linker.id}")
+            args.append(f'-flto={mode}')
+        else:
+            assert mode == 'default', 'someone forgot to wire something up'
+            args.extend(super().get_lto_compile_args(threads=threads))
+        return args
+
+    def get_lto_link_args(self, *, threads: int = 0, mode: str = 'default',
+                          thinlto_cache_dir: T.Optional[str] = None) -> T.List[str]:
+        args = self.get_lto_compile_args(threads=threads, mode=mode)
+        if mode == 'thin' and thinlto_cache_dir is not None:
+            # We check for ThinLTO linker support above in get_lto_compile_args, and all of them support
+            # get_thinlto_cache_args as well
+            args.extend(self.linker.get_thinlto_cache_args(thinlto_cache_dir))
+        # In clang -flto-jobs=0 means auto, and is the default if unspecified, just like in meson
+        if threads > 0:
+            if not mesonlib.version_compare(self.version, '>=4.0.0'):
+                raise mesonlib.MesonException('clang support for LTO threads requires clang >=4.0')
+            args.append(f'-flto-jobs={threads}')
+        return args
diff --git a/mesonbuild/compilers/mixins/clike.py b/mesonbuild/compilers/mixins/clike.py
new file mode 100644
index 0000000..d44dd4d
--- /dev/null
+++ b/mesonbuild/compilers/mixins/clike.py
@@ -0,0 +1,1349 @@
+# Copyright 2012-2022 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+
+"""Mixin classes to be shared between C and C++ compilers.
+
+Without this we'll end up with awful diamond inherintance problems. The goal
+of this is to have mixin's, which are classes that are designed *not* to be
+standalone, they only work through inheritance.
+"""
+
+import collections
+import functools
+import glob
+import itertools
+import os
+import re
+import subprocess
+import copy
+import typing as T
+from pathlib import Path
+
+from ... import arglist
+from ... import mesonlib
+from ... import mlog
+from ...linkers import GnuLikeDynamicLinkerMixin, SolarisDynamicLinker, CompCertDynamicLinker
+from ...mesonlib import LibType
+from ...coredata import OptionKey
+from .. import compilers
+from ..compilers import CompileCheckMode
+from .visualstudio import VisualStudioLikeCompiler
+
+if T.TYPE_CHECKING:
+    from ...dependencies import Dependency
+    from ..._typing import ImmutableListProtocol
+    from ...environment import Environment
+    from ...compilers.compilers import Compiler
+    from ...programs import ExternalProgram
+else:
+    # This is a bit clever, for mypy we pretend that these mixins descend from
+    # Compiler, so we get all of the methods and attributes defined for us, but
+    # for runtime we make them descend from object (which all classes normally
+    # do). This gives up DRYer type checking, with no runtime impact
+    Compiler = object
+
+GROUP_FLAGS = re.compile(r'''\.so (?:\.[0-9]+)? (?:\.[0-9]+)? (?:\.[0-9]+)?$ |
+                             ^(?:-Wl,)?-l |
+                             \.a$''', re.X)
+
+class CLikeCompilerArgs(arglist.CompilerArgs):
+    prepend_prefixes = ('-I', '-L')
+    dedup2_prefixes = ('-I', '-isystem', '-L', '-D', '-U')
+
+    # NOTE: not thorough. A list of potential corner cases can be found in
+    # https://github.com/mesonbuild/meson/pull/4593#pullrequestreview-182016038
+    dedup1_prefixes = ('-l', '-Wl,-l', '-Wl,--export-dynamic')
+    dedup1_suffixes = ('.lib', '.dll', '.so', '.dylib', '.a')
+    dedup1_args = ('-c', '-S', '-E', '-pipe', '-pthread')
+
+    def to_native(self, copy: bool = False) -> T.List[str]:
+        # This seems to be allowed, but could never work?
+        assert isinstance(self.compiler, compilers.Compiler), 'How did you get here'
+
+        # Check if we need to add --start/end-group for circular dependencies
+        # between static libraries, and for recursively searching for symbols
+        # needed by static libraries that are provided by object files or
+        # shared libraries.
+        self.flush_pre_post()
+        if copy:
+            new = self.copy()
+        else:
+            new = self
+        # This covers all ld.bfd, ld.gold, ld.gold, and xild on Linux, which
+        # all act like (or are) gnu ld
+        # TODO: this could probably be added to the DynamicLinker instead
+        if isinstance(self.compiler.linker, (GnuLikeDynamicLinkerMixin, SolarisDynamicLinker, CompCertDynamicLinker)):
+            group_start = -1
+            group_end = -1
+            for i, each in enumerate(new):
+                if not GROUP_FLAGS.search(each):
+                    continue
+                group_end = i
+                if group_start < 0:
+                    # First occurrence of a library
+                    group_start = i
+            if group_start >= 0:
+                # Last occurrence of a library
+                new.insert(group_end + 1, '-Wl,--end-group')
+                new.insert(group_start, '-Wl,--start-group')
+        # Remove system/default include paths added with -isystem
+        default_dirs = self.compiler.get_default_include_dirs()
+        if default_dirs:
+            real_default_dirs = [self._cached_realpath(i) for i in default_dirs]
+            bad_idx_list = []  # type: T.List[int]
+            for i, each in enumerate(new):
+                if not each.startswith('-isystem'):
+                    continue
+
+                # Remove the -isystem and the path if the path is a default path
+                if (each == '-isystem' and
+                        i < (len(new) - 1) and
+                        self._cached_realpath(new[i + 1]) in real_default_dirs):
+                    bad_idx_list += [i, i + 1]
+                elif each.startswith('-isystem=') and self._cached_realpath(each[9:]) in real_default_dirs:
+                    bad_idx_list += [i]
+                elif self._cached_realpath(each[8:]) in real_default_dirs:
+                    bad_idx_list += [i]
+            for i in reversed(bad_idx_list):
+                new.pop(i)
+        return self.compiler.unix_args_to_native(new._container)
+
+    @staticmethod
+    @functools.lru_cache(maxsize=None)
+    def _cached_realpath(arg: str) -> str:
+        return os.path.realpath(arg)
+
+    def __repr__(self) -> str:
+        self.flush_pre_post()
+        return f'CLikeCompilerArgs({self.compiler!r}, {self._container!r})'
+
+
+class CLikeCompiler(Compiler):
+
+    """Shared bits for the C and CPP Compilers."""
+
+    if T.TYPE_CHECKING:
+        warn_args = {}  # type: T.Dict[str, T.List[str]]
+
+    # TODO: Replace this manual cache with functools.lru_cache
+    find_library_cache = {}    # type: T.Dict[T.Tuple[T.Tuple[str, ...], str, T.Tuple[str, ...], str, LibType], T.Optional[T.List[str]]]
+    find_framework_cache = {}  # type: T.Dict[T.Tuple[T.Tuple[str, ...], str, T.Tuple[str, ...], bool], T.Optional[T.List[str]]]
+    internal_libs = arglist.UNIXY_COMPILER_INTERNAL_LIBS
+
+    def __init__(self, exe_wrapper: T.Optional['ExternalProgram'] = None):
+        # If a child ObjC or CPP class has already set it, don't set it ourselves
+        self.can_compile_suffixes.add('h')
+        # If the exe wrapper was not found, pretend it wasn't set so that the
+        # sanity check is skipped and compiler checks use fallbacks.
+        if not exe_wrapper or not exe_wrapper.found() or not exe_wrapper.get_command():
+            self.exe_wrapper = None
+        else:
+            self.exe_wrapper = exe_wrapper
+        # Lazy initialized in get_preprocessor()
+        self.preprocessor: T.Optional[Compiler] = None
+
+    def compiler_args(self, args: T.Optional[T.Iterable[str]] = None) -> CLikeCompilerArgs:
+        # This is correct, mypy just doesn't understand co-operative inheritance
+        return CLikeCompilerArgs(self, args)
+
+    def needs_static_linker(self) -> bool:
+        return True # When compiling static libraries, so yes.
+
+    def get_always_args(self) -> T.List[str]:
+        '''
+        Args that are always-on for all C compilers other than MSVC
+        '''
+        return self.get_largefile_args()
+
+    def get_no_stdinc_args(self) -> T.List[str]:
+        return ['-nostdinc']
+
+    def get_no_stdlib_link_args(self) -> T.List[str]:
+        return ['-nostdlib']
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        # TODO: this should be an enum
+        return self.warn_args[level]
+
+    def get_no_warn_args(self) -> T.List[str]:
+        # Almost every compiler uses this for disabling warnings
+        return ['-w']
+
+    def get_depfile_suffix(self) -> str:
+        return 'd'
+
+    def get_preprocess_only_args(self) -> T.List[str]:
+        return ['-E', '-P']
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return ['-c']
+
+    def get_no_optimization_args(self) -> T.List[str]:
+        return ['-O0']
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return ['-o', outputname]
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['-Werror']
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if path == '':
+            path = '.'
+        if is_system:
+            return ['-isystem', path]
+        return ['-I' + path]
+
+    def get_compiler_dirs(self, env: 'Environment', name: str) -> T.List[str]:
+        '''
+        Get dirs from the compiler, either `libraries:` or `programs:`
+        '''
+        return []
+
+    @functools.lru_cache()
+    def _get_library_dirs(self, env: 'Environment',
+                          elf_class: T.Optional[int] = None) -> 'ImmutableListProtocol[str]':
+        # TODO: replace elf_class with enum
+        dirs = self.get_compiler_dirs(env, 'libraries')
+        if elf_class is None or elf_class == 0:
+            return dirs
+
+        # if we do have an elf class for 32-bit or 64-bit, we want to check that
+        # the directory in question contains libraries of the appropriate class. Since
+        # system directories aren't mixed, we only need to check one file for each
+        # directory and go by that. If we can't check the file for some reason, assume
+        # the compiler knows what it's doing, and accept the directory anyway.
+        retval = []
+        for d in dirs:
+            files = [f for f in os.listdir(d) if f.endswith('.so') and os.path.isfile(os.path.join(d, f))]
+            # if no files, accept directory and move on
+            if not files:
+                retval.append(d)
+                continue
+
+            for f in files:
+                file_to_check = os.path.join(d, f)
+                try:
+                    with open(file_to_check, 'rb') as fd:
+                        header = fd.read(5)
+                        # if file is not an ELF file, it's weird, but accept dir
+                        # if it is elf, and the class matches, accept dir
+                        if header[1:4] != b'ELF' or int(header[4]) == elf_class:
+                            retval.append(d)
+                        # at this point, it's an ELF file which doesn't match the
+                        # appropriate elf_class, so skip this one
+                    # stop scanning after the first successful read
+                    break
+                except OSError:
+                    # Skip the file if we can't read it
+                    pass
+
+        return retval
+
+    def get_library_dirs(self, env: 'Environment',
+                         elf_class: T.Optional[int] = None) -> T.List[str]:
+        """Wrap the lru_cache so that we return a new copy and don't allow
+        mutation of the cached value.
+        """
+        return self._get_library_dirs(env, elf_class).copy()
+
+    @functools.lru_cache()
+    def _get_program_dirs(self, env: 'Environment') -> 'ImmutableListProtocol[str]':
+        '''
+        Programs used by the compiler. Also where toolchain DLLs such as
+        libstdc++-6.dll are found with MinGW.
+        '''
+        return self.get_compiler_dirs(env, 'programs')
+
+    def get_program_dirs(self, env: 'Environment') -> T.List[str]:
+        return self._get_program_dirs(env).copy()
+
+    def get_pic_args(self) -> T.List[str]:
+        return ['-fPIC']
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        return ['-include', os.path.basename(header)]
+
+    def get_pch_name(self, name: str) -> str:
+        return os.path.basename(name) + '.' + self.get_pch_suffix()
+
+    def get_default_include_dirs(self) -> T.List[str]:
+        return []
+
+    def gen_export_dynamic_link_args(self, env: 'Environment') -> T.List[str]:
+        return self.linker.export_dynamic_args(env)
+
+    def gen_import_library_args(self, implibname: str) -> T.List[str]:
+        return self.linker.import_library_args(implibname)
+
+    def _sanity_check_impl(self, work_dir: str, environment: 'Environment',
+                           sname: str, code: str) -> None:
+        mlog.debug('Sanity testing ' + self.get_display_language() + ' compiler:', mesonlib.join_args(self.exelist))
+        mlog.debug(f'Is cross compiler: {self.is_cross!s}.')
+
+        source_name = os.path.join(work_dir, sname)
+        binname = sname.rsplit('.', 1)[0]
+        mode = CompileCheckMode.LINK
+        if self.is_cross:
+            binname += '_cross'
+            if self.exe_wrapper is None:
+                # Linking cross built C/C++ apps is painful. You can't really
+                # tell if you should use -nostdlib or not and for example
+                # on OSX the compiler binary is the same but you need
+                # a ton of compiler flags to differentiate between
+                # arm and x86_64. So just compile.
+                mode = CompileCheckMode.COMPILE
+        cargs, largs = self._get_basic_compiler_args(environment, mode)
+        extra_flags = cargs + self.linker_to_compiler_args(largs)
+
+        # Is a valid executable output for all toolchains and platforms
+        binname += '.exe'
+        # Write binary check source
+        binary_name = os.path.join(work_dir, binname)
+        with open(source_name, 'w', encoding='utf-8') as ofile:
+            ofile.write(code)
+        # Compile sanity check
+        # NOTE: extra_flags must be added at the end. On MSVC, it might contain a '/link' argument
+        # after which all further arguments will be passed directly to the linker
+        cmdlist = self.exelist + [sname] + self.get_output_args(binname) + extra_flags
+        pc, stdo, stde = mesonlib.Popen_safe(cmdlist, cwd=work_dir)
+        mlog.debug('Sanity check compiler command line:', mesonlib.join_args(cmdlist))
+        mlog.debug('Sanity check compile stdout:')
+        mlog.debug(stdo)
+        mlog.debug('-----\nSanity check compile stderr:')
+        mlog.debug(stde)
+        mlog.debug('-----')
+        if pc.returncode != 0:
+            raise mesonlib.EnvironmentException(f'Compiler {self.name_string()} can not compile programs.')
+        # Run sanity check
+        if self.is_cross:
+            if self.exe_wrapper is None:
+                # Can't check if the binaries run so we have to assume they do
+                return
+            cmdlist = self.exe_wrapper.get_command() + [binary_name]
+        else:
+            cmdlist = [binary_name]
+        mlog.debug('Running test binary command: ', mesonlib.join_args(cmdlist))
+        try:
+            # fortran code writes to stdout
+            pe = subprocess.run(cmdlist, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+        except Exception as e:
+            raise mesonlib.EnvironmentException(f'Could not invoke sanity test executable: {e!s}.')
+        if pe.returncode != 0:
+            raise mesonlib.EnvironmentException(f'Executables created by {self.language} compiler {self.name_string()} are not runnable.')
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        code = 'int main(void) { int class=0; return class; }\n'
+        return self._sanity_check_impl(work_dir, environment, 'sanitycheckc.c', code)
+
+    def check_header(self, hname: str, prefix: str, env: 'Environment', *,
+                     extra_args: T.Union[None, T.List[str], T.Callable[['CompileCheckMode'], T.List[str]]] = None,
+                     dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        code = f'''{prefix}
+        #include <{hname}>'''
+        return self.compiles(code, env, extra_args=extra_args,
+                             dependencies=dependencies)
+
+    def has_header(self, hname: str, prefix: str, env: 'Environment', *,
+                   extra_args: T.Union[None, T.List[str], T.Callable[['CompileCheckMode'], T.List[str]]] = None,
+                   dependencies: T.Optional[T.List['Dependency']] = None,
+                   disable_cache: bool = False) -> T.Tuple[bool, bool]:
+        code = f'''{prefix}
+        #ifdef __has_include
+         #if !__has_include("{hname}")
+          #error "Header '{hname}' could not be found"
+         #endif
+        #else
+         #include <{hname}>
+        #endif'''
+        return self.compiles(code, env, extra_args=extra_args,
+                             dependencies=dependencies, mode='preprocess', disable_cache=disable_cache)
+
+    def has_header_symbol(self, hname: str, symbol: str, prefix: str,
+                          env: 'Environment', *,
+                          extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+                          dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        t = f'''{prefix}
+        #include <{hname}>
+        int main(void) {{
+            /* If it's not defined as a macro, try to use as a symbol */
+            #ifndef {symbol}
+                {symbol};
+            #endif
+            return 0;
+        }}'''
+        return self.compiles(t, env, extra_args=extra_args,
+                             dependencies=dependencies)
+
+    def _get_basic_compiler_args(self, env: 'Environment', mode: CompileCheckMode) -> T.Tuple[T.List[str], T.List[str]]:
+        cargs = []  # type: T.List[str]
+        largs = []  # type: T.List[str]
+        if mode is CompileCheckMode.LINK:
+            # Sometimes we need to manually select the CRT to use with MSVC.
+            # One example is when trying to do a compiler check that involves
+            # linking with static libraries since MSVC won't select a CRT for
+            # us in that case and will error out asking us to pick one.
+            try:
+                crt_val = env.coredata.options[OptionKey('b_vscrt')].value
+                buildtype = env.coredata.options[OptionKey('buildtype')].value
+                cargs += self.get_crt_compile_args(crt_val, buildtype)
+            except (KeyError, AttributeError):
+                pass
+
+        # Add CFLAGS/CXXFLAGS/OBJCFLAGS/OBJCXXFLAGS and CPPFLAGS from the env
+        sys_args = env.coredata.get_external_args(self.for_machine, self.language)
+        if isinstance(sys_args, str):
+            sys_args = [sys_args]
+        # Apparently it is a thing to inject linker flags both
+        # via CFLAGS _and_ LDFLAGS, even though the former are
+        # also used during linking. These flags can break
+        # argument checks. Thanks, Autotools.
+        cleaned_sys_args = self.remove_linkerlike_args(sys_args)
+        cargs += cleaned_sys_args
+
+        if mode is CompileCheckMode.LINK:
+            ld_value = env.lookup_binary_entry(self.for_machine, self.language + '_ld')
+            if ld_value is not None:
+                largs += self.use_linker_args(ld_value[0], self.version)
+
+            # Add LDFLAGS from the env
+            sys_ld_args = env.coredata.get_external_link_args(self.for_machine, self.language)
+            # CFLAGS and CXXFLAGS go to both linking and compiling, but we want them
+            # to only appear on the command line once. Remove dupes.
+            largs += [x for x in sys_ld_args if x not in sys_args]
+
+        cargs += self.get_compiler_args_for_mode(mode)
+        return cargs, largs
+
+    def build_wrapper_args(self, env: 'Environment',
+                           extra_args: T.Union[None, arglist.CompilerArgs, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]],
+                           dependencies: T.Optional[T.List['Dependency']],
+                           mode: CompileCheckMode = CompileCheckMode.COMPILE) -> arglist.CompilerArgs:
+        # TODO: the caller should handle the listfing of these arguments
+        if extra_args is None:
+            extra_args = []
+        else:
+            # TODO: we want to do this in the caller
+            extra_args = mesonlib.listify(extra_args)
+        extra_args = mesonlib.listify([e(mode.value) if callable(e) else e for e in extra_args])
+
+        if dependencies is None:
+            dependencies = []
+        elif not isinstance(dependencies, collections.abc.Iterable):
+            # TODO: we want to ensure the front end does the listifing here
+            dependencies = [dependencies]
+        # Collect compiler arguments
+        cargs = self.compiler_args()  # type: arglist.CompilerArgs
+        largs = []  # type: T.List[str]
+        for d in dependencies:
+            # Add compile flags needed by dependencies
+            cargs += d.get_compile_args()
+            if mode is CompileCheckMode.LINK:
+                # Add link flags needed to find dependencies
+                largs += d.get_link_args()
+
+        ca, la = self._get_basic_compiler_args(env, mode)
+        cargs += ca
+        largs += la
+
+        cargs += self.get_compiler_check_args(mode)
+
+        # on MSVC compiler and linker flags must be separated by the "/link" argument
+        # at this point, the '/link' argument may already be part of extra_args, otherwise, it is added here
+        if self.linker_to_compiler_args([]) == ['/link'] and largs != [] and '/link' not in extra_args:
+            extra_args += ['/link']
+
+        args = cargs + extra_args + largs
+        return args
+
+    def run(self, code: 'mesonlib.FileOrString', env: 'Environment', *,
+            extra_args: T.Union[T.List[str], T.Callable[[CompileCheckMode], T.List[str]], None] = None,
+            dependencies: T.Optional[T.List['Dependency']] = None) -> compilers.RunResult:
+        need_exe_wrapper = env.need_exe_wrapper(self.for_machine)
+        if need_exe_wrapper and self.exe_wrapper is None:
+            raise compilers.CrossNoRunException('Can not run test applications in this cross environment.')
+        with self._build_wrapper(code, env, extra_args, dependencies, mode='link', want_output=True) as p:
+            if p.returncode != 0:
+                mlog.debug(f'Could not compile test file {p.input_name}: {p.returncode}\n')
+                return compilers.RunResult(False)
+            if need_exe_wrapper:
+                cmdlist = self.exe_wrapper.get_command() + [p.output_name]
+            else:
+                cmdlist = [p.output_name]
+            try:
+                pe, so, se = mesonlib.Popen_safe(cmdlist)
+            except Exception as e:
+                mlog.debug(f'Could not run: {cmdlist} (error: {e})\n')
+                return compilers.RunResult(False)
+
+        mlog.debug('Program stdout:\n')
+        mlog.debug(so)
+        mlog.debug('Program stderr:\n')
+        mlog.debug(se)
+        return compilers.RunResult(True, pe.returncode, so, se)
+
+    def _compile_int(self, expression: str, prefix: str, env: 'Environment',
+                     extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]],
+                     dependencies: T.Optional[T.List['Dependency']]) -> bool:
+        t = f'''#include <stdio.h>
+        {prefix}
+        int main(void) {{ static int a[1-2*!({expression})]; a[0]=0; return 0; }}'''
+        return self.compiles(t, env, extra_args=extra_args,
+                             dependencies=dependencies)[0]
+
+    def cross_compute_int(self, expression: str, low: T.Optional[int], high: T.Optional[int],
+                          guess: T.Optional[int], prefix: str, env: 'Environment',
+                          extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+                          dependencies: T.Optional[T.List['Dependency']] = None) -> int:
+        # Try user's guess first
+        if isinstance(guess, int):
+            if self._compile_int(f'{expression} == {guess}', prefix, env, extra_args, dependencies):
+                return guess
+
+        # If no bounds are given, compute them in the limit of int32
+        maxint = 0x7fffffff
+        minint = -0x80000000
+        if not isinstance(low, int) or not isinstance(high, int):
+            if self._compile_int(f'{expression} >= 0', prefix, env, extra_args, dependencies):
+                low = cur = 0
+                while self._compile_int(f'{expression} > {cur}', prefix, env, extra_args, dependencies):
+                    low = cur + 1
+                    if low > maxint:
+                        raise mesonlib.EnvironmentException('Cross-compile check overflowed')
+                    cur = min(cur * 2 + 1, maxint)
+                high = cur
+            else:
+                high = cur = -1
+                while self._compile_int(f'{expression} < {cur}', prefix, env, extra_args, dependencies):
+                    high = cur - 1
+                    if high < minint:
+                        raise mesonlib.EnvironmentException('Cross-compile check overflowed')
+                    cur = max(cur * 2, minint)
+                low = cur
+        else:
+            # Sanity check limits given by user
+            if high < low:
+                raise mesonlib.EnvironmentException('high limit smaller than low limit')
+            condition = f'{expression} <= {high} && {expression} >= {low}'
+            if not self._compile_int(condition, prefix, env, extra_args, dependencies):
+                raise mesonlib.EnvironmentException('Value out of given range')
+
+        # Binary search
+        while low != high:
+            cur = low + int((high - low) / 2)
+            if self._compile_int(f'{expression} <= {cur}', prefix, env, extra_args, dependencies):
+                high = cur
+            else:
+                low = cur + 1
+
+        return low
+
+    def compute_int(self, expression: str, low: T.Optional[int], high: T.Optional[int],
+                    guess: T.Optional[int], prefix: str, env: 'Environment', *,
+                    extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]],
+                    dependencies: T.Optional[T.List['Dependency']] = None) -> int:
+        if extra_args is None:
+            extra_args = []
+        if self.is_cross:
+            return self.cross_compute_int(expression, low, high, guess, prefix, env, extra_args, dependencies)
+        t = f'''#include<stdio.h>
+        {prefix}
+        int main(void) {{
+            printf("%ld\\n", (long)({expression}));
+            return 0;
+        }}'''
+        res = self.run(t, env, extra_args=extra_args,
+                       dependencies=dependencies)
+        if not res.compiled:
+            return -1
+        if res.returncode != 0:
+            raise mesonlib.EnvironmentException('Could not run compute_int test binary.')
+        return int(res.stdout)
+
+    def cross_sizeof(self, typename: str, prefix: str, env: 'Environment', *,
+                     extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+                     dependencies: T.Optional[T.List['Dependency']] = None) -> int:
+        if extra_args is None:
+            extra_args = []
+        t = f'''#include <stdio.h>
+        {prefix}
+        int main(void) {{
+            {typename} something;
+            return 0;
+        }}'''
+        if not self.compiles(t, env, extra_args=extra_args,
+                             dependencies=dependencies)[0]:
+            return -1
+        return self.cross_compute_int(f'sizeof({typename})', None, None, None, prefix, env, extra_args, dependencies)
+
+    def sizeof(self, typename: str, prefix: str, env: 'Environment', *,
+               extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+               dependencies: T.Optional[T.List['Dependency']] = None) -> int:
+        if extra_args is None:
+            extra_args = []
+        if self.is_cross:
+            return self.cross_sizeof(typename, prefix, env, extra_args=extra_args,
+                                     dependencies=dependencies)
+        t = f'''#include<stdio.h>
+        {prefix}
+        int main(void) {{
+            printf("%ld\\n", (long)(sizeof({typename})));
+            return 0;
+        }}'''
+        res = self.run(t, env, extra_args=extra_args,
+                       dependencies=dependencies)
+        if not res.compiled:
+            return -1
+        if res.returncode != 0:
+            raise mesonlib.EnvironmentException('Could not run sizeof test binary.')
+        return int(res.stdout)
+
+    def cross_alignment(self, typename: str, prefix: str, env: 'Environment', *,
+                        extra_args: T.Optional[T.List[str]] = None,
+                        dependencies: T.Optional[T.List['Dependency']] = None) -> int:
+        if extra_args is None:
+            extra_args = []
+        t = f'''#include <stdio.h>
+        {prefix}
+        int main(void) {{
+            {typename} something;
+            return 0;
+        }}'''
+        if not self.compiles(t, env, extra_args=extra_args,
+                             dependencies=dependencies)[0]:
+            return -1
+        t = f'''#include <stddef.h>
+        {prefix}
+        struct tmp {{
+            char c;
+            {typename} target;
+        }};'''
+        return self.cross_compute_int('offsetof(struct tmp, target)', None, None, None, t, env, extra_args, dependencies)
+
+    def alignment(self, typename: str, prefix: str, env: 'Environment', *,
+                  extra_args: T.Optional[T.List[str]] = None,
+                  dependencies: T.Optional[T.List['Dependency']] = None) -> int:
+        if extra_args is None:
+            extra_args = []
+        if self.is_cross:
+            return self.cross_alignment(typename, prefix, env, extra_args=extra_args,
+                                        dependencies=dependencies)
+        t = f'''#include <stdio.h>
+        #include <stddef.h>
+        {prefix}
+        struct tmp {{
+            char c;
+            {typename} target;
+        }};
+        int main(void) {{
+            printf("%d", (int)offsetof(struct tmp, target));
+            return 0;
+        }}'''
+        res = self.run(t, env, extra_args=extra_args,
+                       dependencies=dependencies)
+        if not res.compiled:
+            raise mesonlib.EnvironmentException('Could not compile alignment test.')
+        if res.returncode != 0:
+            raise mesonlib.EnvironmentException('Could not run alignment test binary.')
+        align = int(res.stdout)
+        if align == 0:
+            raise mesonlib.EnvironmentException(f'Could not determine alignment of {typename}. Sorry. You might want to file a bug.')
+        return align
+
+    def get_define(self, dname: str, prefix: str, env: 'Environment',
+                   extra_args: T.Union[T.List[str], T.Callable[[CompileCheckMode], T.List[str]]],
+                   dependencies: T.Optional[T.List['Dependency']],
+                   disable_cache: bool = False) -> T.Tuple[str, bool]:
+        delim = '"MESON_GET_DEFINE_DELIMITER"'
+        code = f'''
+        {prefix}
+        #ifndef {dname}
+        # define {dname}
+        #endif
+        {delim}\n{dname}'''
+        args = self.build_wrapper_args(env, extra_args, dependencies,
+                                       mode=CompileCheckMode.PREPROCESS).to_native()
+        func = functools.partial(self.cached_compile, code, env.coredata, extra_args=args, mode='preprocess')
+        if disable_cache:
+            func = functools.partial(self.compile, code, extra_args=args, mode='preprocess', temp_dir=env.scratch_dir)
+        with func() as p:
+            cached = p.cached
+            if p.returncode != 0:
+                raise mesonlib.EnvironmentException(f'Could not get define {dname!r}')
+        # Get the preprocessed value after the delimiter,
+        # minus the extra newline at the end and
+        # merge string literals.
+        return self._concatenate_string_literals(p.stdout.split(delim + '\n')[-1][:-1]), cached
+
+    def get_return_value(self, fname: str, rtype: str, prefix: str,
+                         env: 'Environment', extra_args: T.Optional[T.List[str]],
+                         dependencies: T.Optional[T.List['Dependency']]) -> T.Union[str, int]:
+        # TODO: rtype should be an enum.
+        # TODO: maybe we can use overload to tell mypy when this will return int vs str?
+        if rtype == 'string':
+            fmt = '%s'
+            cast = '(char*)'
+        elif rtype == 'int':
+            fmt = '%lli'
+            cast = '(long long int)'
+        else:
+            raise AssertionError(f'BUG: Unknown return type {rtype!r}')
+        code = f'''{prefix}
+        #include <stdio.h>
+        int main(void) {{
+            printf ("{fmt}", {cast} {fname}());
+            return 0;
+        }}'''
+        res = self.run(code, env, extra_args=extra_args, dependencies=dependencies)
+        if not res.compiled:
+            raise mesonlib.EnvironmentException(f'Could not get return value of {fname}()')
+        if rtype == 'string':
+            return res.stdout
+        elif rtype == 'int':
+            try:
+                return int(res.stdout.strip())
+            except ValueError:
+                raise mesonlib.EnvironmentException(f'Return value of {fname}() is not an int')
+        assert False, 'Unreachable'
+
+    @staticmethod
+    def _no_prototype_templ() -> T.Tuple[str, str]:
+        """
+        Try to find the function without a prototype from a header by defining
+        our own dummy prototype and trying to link with the C library (and
+        whatever else the compiler links in by default). This is very similar
+        to the check performed by Autoconf for AC_CHECK_FUNCS.
+        """
+        # Define the symbol to something else since it is defined by the
+        # includes or defines listed by the user or by the compiler. This may
+        # include, for instance _GNU_SOURCE which must be defined before
+        # limits.h, which includes features.h
+        # Then, undef the symbol to get rid of it completely.
+        head = '''
+        #define {func} meson_disable_define_of_{func}
+        {prefix}
+        #include <limits.h>
+        #undef {func}
+        '''
+        # Override any GCC internal prototype and declare our own definition for
+        # the symbol. Use char because that's unlikely to be an actual return
+        # value for a function which ensures that we override the definition.
+        head += '''
+        #ifdef __cplusplus
+        extern "C"
+        #endif
+        char {func} (void);
+        '''
+        # The actual function call
+        main = '''
+        int main(void) {{
+          return {func} ();
+        }}'''
+        return head, main
+
+    @staticmethod
+    def _have_prototype_templ() -> T.Tuple[str, str]:
+        """
+        Returns a head-er and main() call that uses the headers listed by the
+        user for the function prototype while checking if a function exists.
+        """
+        # Add the 'prefix', aka defines, includes, etc that the user provides
+        # This may include, for instance _GNU_SOURCE which must be defined
+        # before limits.h, which includes features.h
+        head = '{prefix}\n#include <limits.h>\n'
+        # We don't know what the function takes or returns, so return it as an int.
+        # Just taking the address or comparing it to void is not enough because
+        # compilers are smart enough to optimize it away. The resulting binary
+        # is not run so we don't care what the return value is.
+        main = '''\nint main(void) {{
+            void *a = (void*) &{func};
+            long long b = (long long) a;
+            return (int) b;
+        }}'''
+        return head, main
+
+    def has_function(self, funcname: str, prefix: str, env: 'Environment', *,
+                     extra_args: T.Optional[T.List[str]] = None,
+                     dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        """Determine if a function exists.
+
+        First, this function looks for the symbol in the default libraries
+        provided by the compiler (stdlib + a few others usually). If that
+        fails, it checks if any of the headers specified in the prefix provide
+        an implementation of the function, and if that fails, it checks if it's
+        implemented as a compiler-builtin.
+        """
+        if extra_args is None:
+            extra_args = []
+
+        # Short-circuit if the check is already provided by the cross-info file
+        varname = 'has function ' + funcname
+        varname = varname.replace(' ', '_')
+        if self.is_cross:
+            val = env.properties.host.get(varname, None)
+            if val is not None:
+                if isinstance(val, bool):
+                    return val, False
+                raise mesonlib.EnvironmentException(f'Cross variable {varname} is not a boolean.')
+
+        # TODO: we really need a protocol for this,
+        #
+        # class StrProto(typing.Protocol):
+        #    def __str__(self) -> str: ...
+        fargs = {'prefix': prefix, 'func': funcname}  # type: T.Dict[str, T.Union[str, bool, int]]
+
+        # glibc defines functions that are not available on Linux as stubs that
+        # fail with ENOSYS (such as e.g. lchmod). In this case we want to fail
+        # instead of detecting the stub as a valid symbol.
+        # We already included limits.h earlier to ensure that these are defined
+        # for stub functions.
+        stubs_fail = '''
+        #if defined __stub_{func} || defined __stub___{func}
+        fail fail fail this function is not going to work
+        #endif
+        '''
+
+        # If we have any includes in the prefix supplied by the user, assume
+        # that the user wants us to use the symbol prototype defined in those
+        # includes. If not, then try to do the Autoconf-style check with
+        # a dummy prototype definition of our own.
+        # This is needed when the linker determines symbol availability from an
+        # SDK based on the prototype in the header provided by the SDK.
+        # Ignoring this prototype would result in the symbol always being
+        # marked as available.
+        if '#include' in prefix:
+            head, main = self._have_prototype_templ()
+        else:
+            head, main = self._no_prototype_templ()
+        templ = head + stubs_fail + main
+
+        res, cached = self.links(templ.format(**fargs), env, extra_args=extra_args,
+                                 dependencies=dependencies)
+        if res:
+            return True, cached
+
+        # MSVC does not have compiler __builtin_-s.
+        if self.get_id() in {'msvc', 'intel-cl'}:
+            return False, False
+
+        # Detect function as a built-in
+        #
+        # Some functions like alloca() are defined as compiler built-ins which
+        # are inlined by the compiler and you can't take their address, so we
+        # need to look for them differently. On nice compilers like clang, we
+        # can just directly use the __has_builtin() macro.
+        fargs['no_includes'] = '#include' not in prefix
+        is_builtin = funcname.startswith('__builtin_')
+        fargs['is_builtin'] = is_builtin
+        fargs['__builtin_'] = '' if is_builtin else '__builtin_'
+        t = '''{prefix}
+        int main(void) {{
+
+        /* With some toolchains (MSYS2/mingw for example) the compiler
+         * provides various builtins which are not really implemented and
+         * fall back to the stdlib where they aren't provided and fail at
+         * build/link time. In case the user provides a header, including
+         * the header didn't lead to the function being defined, and the
+         * function we are checking isn't a builtin itself we assume the
+         * builtin is not functional and we just error out. */
+        #if !{no_includes:d} && !defined({func}) && !{is_builtin:d}
+            #error "No definition for {__builtin_}{func} found in the prefix"
+        #endif
+
+        #ifdef __has_builtin
+            #if !__has_builtin({__builtin_}{func})
+                #error "{__builtin_}{func} not found"
+            #endif
+        #elif ! defined({func})
+            {__builtin_}{func};
+        #endif
+        return 0;
+        }}'''
+        return self.links(t.format(**fargs), env, extra_args=extra_args,
+                          dependencies=dependencies)
+
+    def has_members(self, typename: str, membernames: T.List[str],
+                    prefix: str, env: 'Environment', *,
+                    extra_args: T.Union[None, T.List[str], T.Callable[[CompileCheckMode], T.List[str]]] = None,
+                    dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        if extra_args is None:
+            extra_args = []
+        # Create code that accesses all members
+        members = ''.join(f'foo.{member};\n' for member in membernames)
+        t = f'''{prefix}
+        void bar(void) {{
+            {typename} foo;
+            {members}
+        }}'''
+        return self.compiles(t, env, extra_args=extra_args,
+                             dependencies=dependencies)
+
+    def has_type(self, typename: str, prefix: str, env: 'Environment',
+                 extra_args: T.Union[T.List[str], T.Callable[[CompileCheckMode], T.List[str]]], *,
+                 dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        t = f'''{prefix}
+        void bar(void) {{
+            sizeof({typename});
+        }}'''
+        return self.compiles(t, env, extra_args=extra_args,
+                             dependencies=dependencies)
+
+    def _symbols_have_underscore_prefix_searchbin(self, env: 'Environment') -> bool:
+        '''
+        Check if symbols have underscore prefix by compiling a small test binary
+        and then searching the binary for the string,
+        '''
+        symbol_name = b'meson_uscore_prefix'
+        code = '''#ifdef __cplusplus
+        extern "C" {
+        #endif
+        void ''' + symbol_name.decode() + ''' (void) {}
+        #ifdef __cplusplus
+        }
+        #endif
+        '''
+        args = self.get_compiler_check_args(CompileCheckMode.COMPILE)
+        n = '_symbols_have_underscore_prefix_searchbin'
+        with self._build_wrapper(code, env, extra_args=args, mode='compile', want_output=True, temp_dir=env.scratch_dir) as p:
+            if p.returncode != 0:
+                raise RuntimeError(f'BUG: Unable to compile {n!r} check: {p.stderr}')
+            if not os.path.isfile(p.output_name):
+                raise RuntimeError(f'BUG: Can\'t find compiled test code for {n!r} check')
+            with open(p.output_name, 'rb') as o:
+                for line in o:
+                    # Check if the underscore form of the symbol is somewhere
+                    # in the output file.
+                    if b'_' + symbol_name in line:
+                        mlog.debug("Underscore prefix check found prefixed function in binary")
+                        return True
+                    # Else, check if the non-underscored form is present
+                    elif symbol_name in line:
+                        mlog.debug("Underscore prefix check found non-prefixed function in binary")
+                        return False
+        raise RuntimeError(f'BUG: {n!r} check did not find symbol string in binary')
+
+    def _symbols_have_underscore_prefix_define(self, env: 'Environment') -> T.Optional[bool]:
+        '''
+        Check if symbols have underscore prefix by querying the
+        __USER_LABEL_PREFIX__ define that most compilers provide
+        for this. Return if functions have underscore prefix or None
+        if it was not possible to determine, like when the compiler
+        does not set the define or the define has an unexpected value.
+        '''
+        delim = '"MESON_HAVE_UNDERSCORE_DELIMITER" '
+        code = f'''
+        #ifndef __USER_LABEL_PREFIX__
+        #define MESON_UNDERSCORE_PREFIX unsupported
+        #else
+        #define MESON_UNDERSCORE_PREFIX __USER_LABEL_PREFIX__
+        #endif
+        {delim}MESON_UNDERSCORE_PREFIX
+        '''
+        with self._build_wrapper(code, env, mode='preprocess', want_output=False, temp_dir=env.scratch_dir) as p:
+            if p.returncode != 0:
+                raise RuntimeError(f'BUG: Unable to preprocess _symbols_have_underscore_prefix_define check: {p.stdout}')
+            symbol_prefix = p.stdout.partition(delim)[-1].rstrip()
+
+            mlog.debug(f'Queried compiler for function prefix: __USER_LABEL_PREFIX__ is "{symbol_prefix!s}"')
+            if symbol_prefix == '_':
+                return True
+            elif symbol_prefix == '':
+                return False
+            else:
+                return None
+
+    def _symbols_have_underscore_prefix_list(self, env: 'Environment') -> T.Optional[bool]:
+        '''
+        Check if symbols have underscore prefix by consulting a hardcoded
+        list of cases where we know the results.
+        Return if functions have underscore prefix or None if unknown.
+        '''
+        m = env.machines[self.for_machine]
+        # Darwin always uses the underscore prefix, not matter what
+        if m.is_darwin():
+            return True
+        # Windows uses the underscore prefix on x86 (32bit) only
+        if m.is_windows() or m.is_cygwin():
+            return m.cpu_family == 'x86'
+        return None
+
+    def symbols_have_underscore_prefix(self, env: 'Environment') -> bool:
+        '''
+        Check if the compiler prefixes an underscore to global C symbols
+        '''
+        # First, try to query the compiler directly
+        result = self._symbols_have_underscore_prefix_define(env)
+        if result is not None:
+            return result
+
+        # Else, try to consult a hardcoded list of cases we know
+        # absolutely have an underscore prefix
+        result = self._symbols_have_underscore_prefix_list(env)
+        if result is not None:
+            return result
+
+        # As a last resort, try search in a compiled binary, which is the
+        # most unreliable way of checking this, see #5482
+        return self._symbols_have_underscore_prefix_searchbin(env)
+
+    def _get_patterns(self, env: 'Environment', prefixes: T.List[str], suffixes: T.List[str], shared: bool = False) -> T.List[str]:
+        patterns = []  # type: T.List[str]
+        for p in prefixes:
+            for s in suffixes:
+                patterns.append(p + '{}.' + s)
+        if shared and env.machines[self.for_machine].is_openbsd():
+            # Shared libraries on OpenBSD can be named libfoo.so.X.Y:
+            # https://www.openbsd.org/faq/ports/specialtopics.html#SharedLibs
+            #
+            # This globbing is probably the best matching we can do since regex
+            # is expensive. It's wrong in many edge cases, but it will match
+            # correctly-named libraries and hopefully no one on OpenBSD names
+            # their files libfoo.so.9a.7b.1.0
+            for p in prefixes:
+                patterns.append(p + '{}.so.[0-9]*.[0-9]*')
+        return patterns
+
+    def get_library_naming(self, env: 'Environment', libtype: LibType, strict: bool = False) -> T.Tuple[str, ...]:
+        '''
+        Get library prefixes and suffixes for the target platform ordered by
+        priority
+        '''
+        stlibext = ['a']
+        # We've always allowed libname to be both `foo` and `libfoo`, and now
+        # people depend on it. Also, some people use prebuilt `foo.so` instead
+        # of `libfoo.so` for unknown reasons, and may also want to create
+        # `foo.so` by setting name_prefix to ''
+        if strict and not isinstance(self, VisualStudioLikeCompiler): # lib prefix is not usually used with msvc
+            prefixes = ['lib']
+        else:
+            prefixes = ['lib', '']
+        # Library suffixes and prefixes
+        if env.machines[self.for_machine].is_darwin():
+            shlibext = ['dylib', 'so']
+        elif env.machines[self.for_machine].is_windows():
+            # FIXME: .lib files can be import or static so we should read the
+            # file, figure out which one it is, and reject the wrong kind.
+            if isinstance(self, VisualStudioLikeCompiler):
+                shlibext = ['lib']
+            else:
+                shlibext = ['dll.a', 'lib', 'dll']
+            # Yep, static libraries can also be foo.lib
+            stlibext += ['lib']
+        elif env.machines[self.for_machine].is_cygwin():
+            shlibext = ['dll', 'dll.a']
+            prefixes = ['cyg'] + prefixes
+        else:
+            # Linux/BSDs
+            shlibext = ['so']
+        # Search priority
+        if libtype is LibType.PREFER_SHARED:
+            patterns = self._get_patterns(env, prefixes, shlibext, True)
+            patterns.extend([x for x in self._get_patterns(env, prefixes, stlibext, False) if x not in patterns])
+        elif libtype is LibType.PREFER_STATIC:
+            patterns = self._get_patterns(env, prefixes, stlibext, False)
+            patterns.extend([x for x in self._get_patterns(env, prefixes, shlibext, True) if x not in patterns])
+        elif libtype is LibType.SHARED:
+            patterns = self._get_patterns(env, prefixes, shlibext, True)
+        else:
+            assert libtype is LibType.STATIC
+            patterns = self._get_patterns(env, prefixes, stlibext, False)
+        return tuple(patterns)
+
+    @staticmethod
+    def _sort_shlibs_openbsd(libs: T.List[str]) -> T.List[str]:
+        filtered = []  # type: T.List[str]
+        for lib in libs:
+            # Validate file as a shared library of type libfoo.so.X.Y
+            ret = lib.rsplit('.so.', maxsplit=1)
+            if len(ret) != 2:
+                continue
+            try:
+                float(ret[1])
+            except ValueError:
+                continue
+            filtered.append(lib)
+        float_cmp = lambda x: float(x.rsplit('.so.', maxsplit=1)[1])
+        return sorted(filtered, key=float_cmp, reverse=True)
+
+    @classmethod
+    def _get_trials_from_pattern(cls, pattern: str, directory: str, libname: str) -> T.List[Path]:
+        f = Path(directory) / pattern.format(libname)
+        # Globbing for OpenBSD
+        if '*' in pattern:
+            # NOTE: globbing matches directories and broken symlinks
+            # so we have to do an isfile test on it later
+            return [Path(x) for x in cls._sort_shlibs_openbsd(glob.glob(str(f)))]
+        return [f]
+
+    @staticmethod
+    def _get_file_from_list(env: 'Environment', paths: T.List[Path]) -> Path:
+        '''
+        We just check whether the library exists. We can't do a link check
+        because the library might have unresolved symbols that require other
+        libraries. On macOS we check if the library matches our target
+        architecture.
+        '''
+        # If not building on macOS for Darwin, do a simple file check
+        if not env.machines.host.is_darwin() or not env.machines.build.is_darwin():
+            for p in paths:
+                if p.is_file():
+                    return p
+        # Run `lipo` and check if the library supports the arch we want
+        for p in paths:
+            if not p.is_file():
+                continue
+            archs = mesonlib.darwin_get_object_archs(str(p))
+            if archs and env.machines.host.cpu_family in archs:
+                return p
+            else:
+                mlog.debug(f'Rejected {p}, supports {archs} but need {env.machines.host.cpu_family}')
+        return None
+
+    @functools.lru_cache()
+    def output_is_64bit(self, env: 'Environment') -> bool:
+        '''
+        returns true if the output produced is 64-bit, false if 32-bit
+        '''
+        return self.sizeof('void *', '', env) == 8
+
+    def _find_library_real(self, libname: str, env: 'Environment', extra_dirs: T.List[str], code: str, libtype: LibType) -> T.Optional[T.List[str]]:
+        # First try if we can just add the library as -l.
+        # Gcc + co seem to prefer builtin lib dirs to -L dirs.
+        # Only try to find std libs if no extra dirs specified.
+        # The built-in search procedure will always favour .so and then always
+        # search for .a. This is only allowed if libtype is LibType.PREFER_SHARED
+        if ((not extra_dirs and libtype is LibType.PREFER_SHARED) or
+                libname in self.internal_libs):
+            cargs = ['-l' + libname]
+            largs = self.get_linker_always_args() + self.get_allow_undefined_link_args()
+            extra_args = cargs + self.linker_to_compiler_args(largs)
+
+            if self.links(code, env, extra_args=extra_args, disable_cache=True)[0]:
+                return cargs
+            # Don't do a manual search for internal libs
+            if libname in self.internal_libs:
+                return None
+        # Not found or we want to use a specific libtype? Try to find the
+        # library file itself.
+        patterns = self.get_library_naming(env, libtype)
+        # try to detect if we are 64-bit or 32-bit. If we can't
+        # detect, we will just skip path validity checks done in
+        # get_library_dirs() call
+        try:
+            if self.output_is_64bit(env):
+                elf_class = 2
+            else:
+                elf_class = 1
+        except (mesonlib.MesonException, KeyError): # TODO evaluate if catching KeyError is wanted here
+            elf_class = 0
+        # Search in the specified dirs, and then in the system libraries
+        for d in itertools.chain(extra_dirs, self.get_library_dirs(env, elf_class)):
+            for p in patterns:
+                trials = self._get_trials_from_pattern(p, d, libname)
+                if not trials:
+                    continue
+                trial = self._get_file_from_list(env, trials)
+                if not trial:
+                    continue
+                if libname.startswith('lib') and trial.name.startswith(libname):
+                    mlog.warning(f'find_library({libname!r}) starting in "lib" only works by accident and is not portable')
+                return [trial.as_posix()]
+        return None
+
+    def _find_library_impl(self, libname: str, env: 'Environment', extra_dirs: T.List[str],
+                           code: str, libtype: LibType) -> T.Optional[T.List[str]]:
+        # These libraries are either built-in or invalid
+        if libname in self.ignore_libs:
+            return []
+        if isinstance(extra_dirs, str):
+            extra_dirs = [extra_dirs]
+        key = (tuple(self.exelist), libname, tuple(extra_dirs), code, libtype)
+        if key not in self.find_library_cache:
+            value = self._find_library_real(libname, env, extra_dirs, code, libtype)
+            self.find_library_cache[key] = value
+        else:
+            value = self.find_library_cache[key]
+        if value is None:
+            return None
+        return value.copy()
+
+    def find_library(self, libname: str, env: 'Environment', extra_dirs: T.List[str],
+                     libtype: LibType = LibType.PREFER_SHARED) -> T.Optional[T.List[str]]:
+        code = 'int main(void) { return 0; }\n'
+        return self._find_library_impl(libname, env, extra_dirs, code, libtype)
+
+    def find_framework_paths(self, env: 'Environment') -> T.List[str]:
+        '''
+        These are usually /Library/Frameworks and /System/Library/Frameworks,
+        unless you select a particular macOS SDK with the -isysroot flag.
+        You can also add to this by setting -F in CFLAGS.
+        '''
+        # TODO: this really needs to be *AppleClang*, not just any clang.
+        if self.id != 'clang':
+            raise mesonlib.MesonException('Cannot find framework path with non-clang compiler')
+        # Construct the compiler command-line
+        commands = self.get_exelist(ccache=False) + ['-v', '-E', '-']
+        commands += self.get_always_args()
+        # Add CFLAGS/CXXFLAGS/OBJCFLAGS/OBJCXXFLAGS from the env
+        commands += env.coredata.get_external_args(self.for_machine, self.language)
+        mlog.debug('Finding framework path by running: ', ' '.join(commands), '\n')
+        os_env = os.environ.copy()
+        os_env['LC_ALL'] = 'C'
+        _, _, stde = mesonlib.Popen_safe(commands, env=os_env, stdin=subprocess.PIPE)
+        paths = []  # T.List[str]
+        for line in stde.split('\n'):
+            if '(framework directory)' not in line:
+                continue
+            # line is of the form:
+            # ` /path/to/framework (framework directory)`
+            paths.append(line[:-21].strip())
+        return paths
+
+    def _find_framework_real(self, name: str, env: 'Environment', extra_dirs: T.List[str], allow_system: bool) -> T.Optional[T.List[str]]:
+        code = 'int main(void) { return 0; }'
+        link_args = []
+        for d in extra_dirs:
+            link_args += ['-F' + d]
+        # We can pass -Z to disable searching in the system frameworks, but
+        # then we must also pass -L/usr/lib to pick up libSystem.dylib
+        extra_args = [] if allow_system else ['-Z', '-L/usr/lib']
+        link_args += ['-framework', name]
+        if self.links(code, env, extra_args=(extra_args + link_args), disable_cache=True)[0]:
+            return link_args
+        return None
+
+    def _find_framework_impl(self, name: str, env: 'Environment', extra_dirs: T.List[str],
+                             allow_system: bool) -> T.Optional[T.List[str]]:
+        if isinstance(extra_dirs, str):
+            extra_dirs = [extra_dirs]
+        key = (tuple(self.exelist), name, tuple(extra_dirs), allow_system)
+        if key in self.find_framework_cache:
+            value = self.find_framework_cache[key]
+        else:
+            value = self._find_framework_real(name, env, extra_dirs, allow_system)
+            self.find_framework_cache[key] = value
+        if value is None:
+            return None
+        return value.copy()
+
+    def find_framework(self, name: str, env: 'Environment', extra_dirs: T.List[str],
+                       allow_system: bool = True) -> T.Optional[T.List[str]]:
+        '''
+        Finds the framework with the specified name, and returns link args for
+        the same or returns None when the framework is not found.
+        '''
+        # TODO: should probably check for macOS?
+        return self._find_framework_impl(name, env, extra_dirs, allow_system)
+
+    def get_crt_compile_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        # TODO: does this belong here or in GnuLike or maybe PosixLike?
+        return []
+
+    def get_crt_link_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        # TODO: does this belong here or in GnuLike or maybe PosixLike?
+        return []
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        # TODO: does this belong here or in GnuLike or maybe PosixLike?
+        host_m = env.machines[self.for_machine]
+        if host_m.is_haiku() or host_m.is_darwin():
+            return []
+        return ['-pthread']
+
+    def linker_to_compiler_args(self, args: T.List[str]) -> T.List[str]:
+        return args.copy()
+
+    def has_arguments(self, args: T.List[str], env: 'Environment', code: str,
+                      mode: str) -> T.Tuple[bool, bool]:
+        return self.compiles(code, env, extra_args=args, mode=mode)
+
+    def _has_multi_arguments(self, args: T.List[str], env: 'Environment', code: str) -> T.Tuple[bool, bool]:
+        new_args = []  # type: T.List[str]
+        for arg in args:
+            # some compilers, e.g. GCC, don't warn for unsupported warning-disable
+            # flags, so when we are testing a flag like "-Wno-forgotten-towel", also
+            # check the equivalent enable flag too "-Wforgotten-towel"
+            if arg.startswith('-Wno-'):
+                new_args.append('-W' + arg[5:])
+            if arg.startswith('-Wl,'):
+                mlog.warning(f'{arg} looks like a linker argument, '
+                             'but has_argument and other similar methods only '
+                             'support checking compiler arguments. Using them '
+                             'to check linker arguments are never supported, '
+                             'and results are likely to be wrong regardless of '
+                             'the compiler you are using. has_link_argument or '
+                             'other similar method can be used instead.')
+            new_args.append(arg)
+        return self.has_arguments(new_args, env, code, mode='compile')
+
+    def has_multi_arguments(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]:
+        return self._has_multi_arguments(args, env, 'extern int i;\nint i;\n')
+
+    def _has_multi_link_arguments(self, args: T.List[str], env: 'Environment', code: str) -> T.Tuple[bool, bool]:
+        # First time we check for link flags we need to first check if we have
+        # --fatal-warnings, otherwise some linker checks could give some
+        # false positive.
+        args = self.linker.fatal_warnings() + args
+        args = self.linker_to_compiler_args(args)
+        return self.has_arguments(args, env, code, mode='link')
+
+    def has_multi_link_arguments(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]:
+        return self._has_multi_link_arguments(args, env, 'int main(void) { return 0; }\n')
+
+    @staticmethod
+    def _concatenate_string_literals(s: str) -> str:
+        pattern = re.compile(r'(?P<pre>.*([^\\]")|^")(?P<str1>([^\\"]|\\.)*)"\s+"(?P<str2>([^\\"]|\\.)*)(?P<post>".*)')
+        ret = s
+        m = pattern.match(ret)
+        while m:
+            ret = ''.join(m.group('pre', 'str1', 'str2', 'post'))
+            m = pattern.match(ret)
+        return ret
+
+    def get_has_func_attribute_extra_args(self, name: str) -> T.List[str]:
+        # Most compilers (such as GCC and Clang) only warn about unknown or
+        # ignored attributes, so force an error. Overridden in GCC and Clang
+        # mixins.
+        return ['-Werror']
+
+    def has_func_attribute(self, name: str, env: 'Environment') -> T.Tuple[bool, bool]:
+        # Just assume that if we're not on windows that dllimport and dllexport
+        # don't work
+        m = env.machines[self.for_machine]
+        if not (m.is_windows() or m.is_cygwin()):
+            if name in {'dllimport', 'dllexport'}:
+                return False, False
+
+        return self.compiles(self.attribute_check_func(name), env,
+                             extra_args=self.get_has_func_attribute_extra_args(name))
+
+    def get_disable_assert_args(self) -> T.List[str]:
+        return ['-DNDEBUG']
+
+    @functools.lru_cache(maxsize=None)
+    def can_compile(self, src: 'mesonlib.FileOrString') -> bool:
+        # Files we preprocess can be anything, e.g. .in
+        if self.mode == 'PREPROCESSOR':
+            return True
+        return super().can_compile(src)
+
+    def get_preprocessor(self) -> Compiler:
+        if not self.preprocessor:
+            self.preprocessor = copy.copy(self)
+            self.preprocessor.exelist = self.exelist + self.get_preprocess_to_file_args()
+            self.preprocessor.mode = 'PREPROCESSOR'
+            self.modes.append(self.preprocessor)
+        return self.preprocessor
diff --git a/mesonbuild/compilers/mixins/compcert.py b/mesonbuild/compilers/mixins/compcert.py
new file mode 100644
index 0000000..a0394a9
--- /dev/null
+++ b/mesonbuild/compilers/mixins/compcert.py
@@ -0,0 +1,137 @@
+# Copyright 2012-2019 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Representations specific to the CompCert C compiler family."""
+
+import os
+import re
+import typing as T
+
+if T.TYPE_CHECKING:
+    from envconfig import MachineInfo
+    from ...environment import Environment
+    from ...compilers.compilers import Compiler
+else:
+    # This is a bit clever, for mypy we pretend that these mixins descend from
+    # Compiler, so we get all of the methods and attributes defined for us, but
+    # for runtime we make them descend from object (which all classes normally
+    # do). This gives up DRYer type checking, with no runtime impact
+    Compiler = object
+
+ccomp_buildtype_args = {
+    'plain': [''],
+    'debug': ['-O0', '-g'],
+    'debugoptimized': ['-O0', '-g'],
+    'release': ['-O3'],
+    'minsize': ['-Os'],
+    'custom': ['-Obranchless'],
+}  # type: T.Dict[str, T.List[str]]
+
+ccomp_optimization_args = {
+    'plain': [],
+    '0': ['-O0'],
+    'g': ['-O0'],
+    '1': ['-O1'],
+    '2': ['-O2'],
+    '3': ['-O3'],
+    's': ['-Os']
+}  # type: T.Dict[str, T.List[str]]
+
+ccomp_debug_args = {
+    False: [],
+    True: ['-g']
+}  # type: T.Dict[bool, T.List[str]]
+
+# As of CompCert 20.04, these arguments should be passed to the underlying gcc linker (via -WUl,<arg>)
+# There are probably (many) more, but these are those used by picolibc
+ccomp_args_to_wul = [
+        r"^-ffreestanding$",
+        r"^-r$"
+] # type: T.List[str]
+
+class CompCertCompiler(Compiler):
+
+    id = 'ccomp'
+
+    def __init__(self) -> None:
+        # Assembly
+        self.can_compile_suffixes.add('s')
+        default_warn_args = []  # type: T.List[str]
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + [],
+                          '3': default_warn_args + [],
+                          'everything': default_warn_args + []}  # type: T.Dict[str, T.List[str]]
+
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+    def get_pic_args(self) -> T.List[str]:
+        # As of now, CompCert does not support PIC
+        return []
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return ccomp_buildtype_args[buildtype]
+
+    def get_pch_suffix(self) -> str:
+        return 'pch'
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        return []
+
+    @classmethod
+    def _unix_args_to_native(cls, args: T.List[str], info: MachineInfo) -> T.List[str]:
+        "Always returns a copy that can be independently mutated"
+        patched_args = []  # type: T.List[str]
+        for arg in args:
+            added = 0
+            for ptrn in ccomp_args_to_wul:
+                if re.match(ptrn, arg):
+                    patched_args.append('-WUl,' + arg)
+                    added = 1
+            if not added:
+                patched_args.append(arg)
+        return patched_args
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def get_preprocess_only_args(self) -> T.List[str]:
+        return ['-E']
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return ['-c']
+
+    def get_coverage_args(self) -> T.List[str]:
+        return []
+
+    def get_no_stdinc_args(self) -> T.List[str]:
+        return ['-nostdinc']
+
+    def get_no_stdlib_link_args(self) -> T.List[str]:
+        return ['-nostdlib']
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return ccomp_optimization_args[optimization_level]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return ccomp_debug_args[is_debug]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str], build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:9] == '-I':
+                parameter_list[idx] = i[:9] + os.path.normpath(os.path.join(build_dir, i[9:]))
+
+        return parameter_list
diff --git a/mesonbuild/compilers/mixins/elbrus.py b/mesonbuild/compilers/mixins/elbrus.py
new file mode 100644
index 0000000..872649b
--- /dev/null
+++ b/mesonbuild/compilers/mixins/elbrus.py
@@ -0,0 +1,101 @@
+# Copyright 2019 The meson development team
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Abstractions for the Elbrus family of compilers."""
+
+import os
+import typing as T
+import subprocess
+import re
+
+from .gnu import GnuLikeCompiler
+from .gnu import gnu_optimization_args
+from ...mesonlib import Popen_safe, OptionKey
+
+if T.TYPE_CHECKING:
+    from ...environment import Environment
+    from ...coredata import KeyedOptionDictType
+
+
+class ElbrusCompiler(GnuLikeCompiler):
+    # Elbrus compiler is nearly like GCC, but does not support
+    # PCH, LTO, sanitizers and color output as of version 1.21.x.
+
+    id = 'lcc'
+
+    def __init__(self) -> None:
+        super().__init__()
+        self.base_options = {OptionKey(o) for o in ['b_pgo', 'b_coverage', 'b_ndebug', 'b_staticpic', 'b_lundef', 'b_asneeded']}
+        default_warn_args = ['-Wall']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+                          'everything': default_warn_args + ['-Wextra', '-Wpedantic']}
+
+    # FIXME: use _build_wrapper to call this so that linker flags from the env
+    # get applied
+    def get_library_dirs(self, env: 'Environment', elf_class: T.Optional[int] = None) -> T.List[str]:
+        os_env = os.environ.copy()
+        os_env['LC_ALL'] = 'C'
+        stdo = Popen_safe(self.get_exelist(ccache=False) + ['--print-search-dirs'], env=os_env)[1]
+        for line in stdo.split('\n'):
+            if line.startswith('libraries:'):
+                # lcc does not include '=' in --print-search-dirs output. Also it could show nonexistent dirs.
+                libstr = line.split(' ', 1)[1]
+                return [os.path.realpath(p) for p in libstr.split(':') if os.path.exists(p)]
+        return []
+
+    def get_program_dirs(self, env: 'Environment') -> T.List[str]:
+        os_env = os.environ.copy()
+        os_env['LC_ALL'] = 'C'
+        stdo = Popen_safe(self.get_exelist(ccache=False) + ['--print-search-dirs'], env=os_env)[1]
+        for line in stdo.split('\n'):
+            if line.startswith('programs:'):
+                # lcc does not include '=' in --print-search-dirs output.
+                libstr = line.split(' ', 1)[1]
+                return [os.path.realpath(p) for p in libstr.split(':')]
+        return []
+
+    def get_default_include_dirs(self) -> T.List[str]:
+        os_env = os.environ.copy()
+        os_env['LC_ALL'] = 'C'
+        p = subprocess.Popen(self.get_exelist(ccache=False) + ['-xc', '-E', '-v', '-'], env=os_env, stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        stderr = p.stderr.read().decode('utf-8', errors='replace')
+        includes = []
+        for line in stderr.split('\n'):
+            if line.lstrip().startswith('--sys_include'):
+                includes.append(re.sub(r'\s*\\$', '', re.sub(r'^\s*--sys_include\s*', '', line)))
+        return includes
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return gnu_optimization_args[optimization_level]
+
+    def get_prelink_args(self, prelink_name: str, obj_list: T.List[str]) -> T.List[str]:
+        return ['-r', '-nodefaultlibs', '-nostartfiles', '-o', prelink_name] + obj_list
+
+    def get_pch_suffix(self) -> str:
+        # Actually it's not supported for now, but probably will be supported in future
+        return 'pch'
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        std = options[OptionKey('std', lang=self.language, machine=self.for_machine)]
+        if std.value != 'none':
+            args.append('-std=' + std.value)
+        return args
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['-fopenmp']
diff --git a/mesonbuild/compilers/mixins/emscripten.py b/mesonbuild/compilers/mixins/emscripten.py
new file mode 100644
index 0000000..77b1c33
--- /dev/null
+++ b/mesonbuild/compilers/mixins/emscripten.py
@@ -0,0 +1,101 @@
+# Copyright 2019 The meson development team
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Provides a mixin for shared code between C and C++ Emscripten compilers."""
+
+import os.path
+import typing as T
+
+from ... import coredata
+from ... import mesonlib
+from ...mesonlib import OptionKey
+from ...mesonlib import LibType
+
+if T.TYPE_CHECKING:
+    from ...environment import Environment
+    from ...compilers.compilers import Compiler
+    from ...dependencies import Dependency
+else:
+    # This is a bit clever, for mypy we pretend that these mixins descend from
+    # Compiler, so we get all of the methods and attributes defined for us, but
+    # for runtime we make them descend from object (which all classes normally
+    # do). This gives up DRYer type checking, with no runtime impact
+    Compiler = object
+
+
+def wrap_js_includes(args: T.List[str]) -> T.List[str]:
+    final_args = []
+    for i in args:
+        if i.endswith('.js') and not i.startswith('-'):
+            final_args += ['--js-library', i]
+        else:
+            final_args += [i]
+    return final_args
+
+class EmscriptenMixin(Compiler):
+
+    def _get_compile_output(self, dirname: str, mode: str) -> str:
+        # In pre-processor mode, the output is sent to stdout and discarded
+        if mode == 'preprocess':
+            return None
+        # Unlike sane toolchains, emcc infers the kind of output from its name.
+        # This is the only reason why this method is overridden; compiler tests
+        # do not work well with the default exe/obj suffices.
+        if mode == 'link':
+            suffix = 'js'
+        else:
+            suffix = 'o'
+        return os.path.join(dirname, 'output.' + suffix)
+
+    def thread_link_flags(self, env: 'Environment') -> T.List[str]:
+        args = ['-pthread']
+        count: int = env.coredata.options[OptionKey('thread_count', lang=self.language, machine=self.for_machine)].value
+        if count:
+            args.append(f'-sPTHREAD_POOL_SIZE={count}')
+        return args
+
+    def get_options(self) -> 'coredata.MutableKeyedOptionDictType':
+        opts = super().get_options()
+        key = OptionKey('thread_count', machine=self.for_machine, lang=self.language)
+        opts.update({
+            key: coredata.UserIntegerOption(
+                'Number of threads to use in web assembly, set to 0 to disable',
+                (0, None, 4),  # Default was picked at random
+            ),
+        })
+
+        return opts
+
+    @classmethod
+    def native_args_to_unix(cls, args: T.List[str]) -> T.List[str]:
+        return wrap_js_includes(super().native_args_to_unix(args))
+
+    def get_dependency_link_args(self, dep: 'Dependency') -> T.List[str]:
+        return wrap_js_includes(super().get_dependency_link_args(dep))
+
+    def find_library(self, libname: str, env: 'Environment', extra_dirs: T.List[str],
+                     libtype: LibType = LibType.PREFER_SHARED) -> T.Optional[T.List[str]]:
+        if not libname.endswith('.js'):
+            return super().find_library(libname, env, extra_dirs, libtype)
+        if os.path.isabs(libname):
+            if os.path.exists(libname):
+                return [libname]
+        if len(extra_dirs) == 0:
+            raise mesonlib.EnvironmentException('Looking up Emscripten JS libraries requires either an absolute path or specifying extra_dirs.')
+        for d in extra_dirs:
+            abs_path = os.path.join(d, libname)
+            if os.path.exists(abs_path):
+                return [abs_path]
+        return None
diff --git a/mesonbuild/compilers/mixins/gnu.py b/mesonbuild/compilers/mixins/gnu.py
new file mode 100644
index 0000000..022e7fd
--- /dev/null
+++ b/mesonbuild/compilers/mixins/gnu.py
@@ -0,0 +1,649 @@
+# Copyright 2019-2022 The meson development team
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Provides mixins for GNU compilers and GNU-like compilers."""
+
+import abc
+import functools
+import os
+import multiprocessing
+import pathlib
+import re
+import subprocess
+import typing as T
+
+from ... import mesonlib
+from ... import mlog
+from ...mesonlib import OptionKey
+
+if T.TYPE_CHECKING:
+    from ..._typing import ImmutableListProtocol
+    from ...environment import Environment
+    from ..compilers import Compiler
+else:
+    # This is a bit clever, for mypy we pretend that these mixins descend from
+    # Compiler, so we get all of the methods and attributes defined for us, but
+    # for runtime we make them descend from object (which all classes normally
+    # do). This gives up DRYer type checking, with no runtime impact
+    Compiler = object
+
+# XXX: prevent circular references.
+# FIXME: this really is a posix interface not a c-like interface
+clike_debug_args = {
+    False: [],
+    True: ['-g'],
+}  # type: T.Dict[bool, T.List[str]]
+
+gnulike_buildtype_args = {
+    'plain': [],
+    'debug': [],
+    'debugoptimized': [],
+    'release': [],
+    'minsize': [],
+    'custom': [],
+}  # type: T.Dict[str, T.List[str]]
+
+gnu_optimization_args = {
+    'plain': [],
+    '0': ['-O0'],
+    'g': ['-Og'],
+    '1': ['-O1'],
+    '2': ['-O2'],
+    '3': ['-O3'],
+    's': ['-Os'],
+}  # type: T.Dict[str, T.List[str]]
+
+gnulike_instruction_set_args = {
+    'mmx': ['-mmmx'],
+    'sse': ['-msse'],
+    'sse2': ['-msse2'],
+    'sse3': ['-msse3'],
+    'ssse3': ['-mssse3'],
+    'sse41': ['-msse4.1'],
+    'sse42': ['-msse4.2'],
+    'avx': ['-mavx'],
+    'avx2': ['-mavx2'],
+    'neon': ['-mfpu=neon'],
+}  # type: T.Dict[str, T.List[str]]
+
+gnu_symbol_visibility_args = {
+    '': [],
+    'default': ['-fvisibility=default'],
+    'internal': ['-fvisibility=internal'],
+    'hidden': ['-fvisibility=hidden'],
+    'protected': ['-fvisibility=protected'],
+    'inlineshidden': ['-fvisibility=hidden', '-fvisibility-inlines-hidden'],
+}  # type: T.Dict[str, T.List[str]]
+
+gnu_color_args = {
+    'auto': ['-fdiagnostics-color=auto'],
+    'always': ['-fdiagnostics-color=always'],
+    'never': ['-fdiagnostics-color=never'],
+}  # type: T.Dict[str, T.List[str]]
+
+# Warnings collected from the GCC source and documentation.  This is an
+# objective set of all the warnings flags that apply to general projects: the
+# only ones omitted are those that require a project-specific value, or are
+# related to non-standard or legacy language support.  This behaves roughly
+# like -Weverything in clang.  Warnings implied by -Wall, -Wextra, or
+# higher-level warnings already enabled here are not included in these lists to
+# keep them as short as possible.  History goes back to GCC 3.0.0, everything
+# earlier is considered historical and listed under version 0.0.0.
+
+# GCC warnings for all C-family languages
+# Omitted non-general warnings:
+#   -Wabi=
+#   -Waggregate-return
+#   -Walloc-size-larger-than=BYTES
+#   -Walloca-larger-than=BYTES
+#   -Wframe-larger-than=BYTES
+#   -Wlarger-than=BYTES
+#   -Wstack-usage=BYTES
+#   -Wsystem-headers
+#   -Wtrampolines
+#   -Wvla-larger-than=BYTES
+#
+# Omitted warnings enabled elsewhere in meson:
+#   -Winvalid-pch (GCC 3.4.0)
+gnu_common_warning_args = {
+    "0.0.0": [
+        "-Wcast-qual",
+        "-Wconversion",
+        "-Wfloat-equal",
+        "-Wformat=2",
+        "-Winline",
+        "-Wmissing-declarations",
+        "-Wredundant-decls",
+        "-Wshadow",
+        "-Wundef",
+        "-Wuninitialized",
+        "-Wwrite-strings",
+    ],
+    "3.0.0": [
+        "-Wdisabled-optimization",
+        "-Wpacked",
+        "-Wpadded",
+    ],
+    "3.3.0": [
+        "-Wmultichar",
+        "-Wswitch-default",
+        "-Wswitch-enum",
+        "-Wunused-macros",
+    ],
+    "4.0.0": [
+        "-Wmissing-include-dirs",
+    ],
+    "4.1.0": [
+        "-Wunsafe-loop-optimizations",
+        "-Wstack-protector",
+    ],
+    "4.2.0": [
+        "-Wstrict-overflow=5",
+    ],
+    "4.3.0": [
+        "-Warray-bounds=2",
+        "-Wlogical-op",
+        "-Wstrict-aliasing=3",
+        "-Wvla",
+    ],
+    "4.6.0": [
+        "-Wdouble-promotion",
+        "-Wsuggest-attribute=const",
+        "-Wsuggest-attribute=noreturn",
+        "-Wsuggest-attribute=pure",
+        "-Wtrampolines",
+    ],
+    "4.7.0": [
+        "-Wvector-operation-performance",
+    ],
+    "4.8.0": [
+        "-Wsuggest-attribute=format",
+    ],
+    "4.9.0": [
+        "-Wdate-time",
+    ],
+    "5.1.0": [
+        "-Wformat-signedness",
+        "-Wnormalized=nfc",
+    ],
+    "6.1.0": [
+        "-Wduplicated-cond",
+        "-Wnull-dereference",
+        "-Wshift-negative-value",
+        "-Wshift-overflow=2",
+        "-Wunused-const-variable=2",
+    ],
+    "7.1.0": [
+        "-Walloca",
+        "-Walloc-zero",
+        "-Wformat-overflow=2",
+        "-Wformat-truncation=2",
+        "-Wstringop-overflow=3",
+    ],
+    "7.2.0": [
+        "-Wduplicated-branches",
+    ],
+    "8.1.0": [
+        "-Wattribute-alias=2",
+        "-Wcast-align=strict",
+        "-Wsuggest-attribute=cold",
+        "-Wsuggest-attribute=malloc",
+    ],
+    "10.1.0": [
+        "-Wanalyzer-too-complex",
+        "-Warith-conversion",
+    ],
+    "12.1.0": [
+        "-Wbidi-chars=ucn",
+        "-Wopenacc-parallelism",
+        "-Wtrivial-auto-var-init",
+    ],
+}  # type: T.Dict[str, T.List[str]]
+
+# GCC warnings for C
+# Omitted non-general or legacy warnings:
+#   -Wc11-c2x-compat
+#   -Wc90-c99-compat
+#   -Wc99-c11-compat
+#   -Wdeclaration-after-statement
+#   -Wtraditional
+#   -Wtraditional-conversion
+gnu_c_warning_args = {
+    "0.0.0": [
+        "-Wbad-function-cast",
+        "-Wmissing-prototypes",
+        "-Wnested-externs",
+        "-Wstrict-prototypes",
+    ],
+    "3.4.0": [
+        "-Wold-style-definition",
+        "-Winit-self",
+    ],
+    "4.1.0": [
+        "-Wc++-compat",
+    ],
+    "4.5.0": [
+        "-Wunsuffixed-float-constants",
+    ],
+}  # type: T.Dict[str, T.List[str]]
+
+# GCC warnings for C++
+# Omitted non-general or legacy warnings:
+#   -Wc++0x-compat
+#   -Wc++1z-compat
+#   -Wc++2a-compat
+#   -Wctad-maybe-unsupported
+#   -Wnamespaces
+#   -Wtemplates
+gnu_cpp_warning_args = {
+    "0.0.0": [
+        "-Wctor-dtor-privacy",
+        "-Weffc++",
+        "-Wnon-virtual-dtor",
+        "-Wold-style-cast",
+        "-Woverloaded-virtual",
+        "-Wsign-promo",
+    ],
+    "4.0.1": [
+        "-Wstrict-null-sentinel",
+    ],
+    "4.6.0": [
+        "-Wnoexcept",
+    ],
+    "4.7.0": [
+        "-Wzero-as-null-pointer-constant",
+    ],
+    "4.8.0": [
+        "-Wabi-tag",
+        "-Wuseless-cast",
+    ],
+    "4.9.0": [
+        "-Wconditionally-supported",
+    ],
+    "5.1.0": [
+        "-Wsuggest-final-methods",
+        "-Wsuggest-final-types",
+        "-Wsuggest-override",
+    ],
+    "6.1.0": [
+        "-Wmultiple-inheritance",
+        "-Wplacement-new=2",
+        "-Wvirtual-inheritance",
+    ],
+    "7.1.0": [
+        "-Waligned-new=all",
+        "-Wnoexcept-type",
+        "-Wregister",
+    ],
+    "8.1.0": [
+        "-Wcatch-value=3",
+        "-Wextra-semi",
+    ],
+    "9.1.0": [
+        "-Wdeprecated-copy-dtor",
+        "-Wredundant-move",
+    ],
+    "10.1.0": [
+        "-Wcomma-subscript",
+        "-Wmismatched-tags",
+        "-Wredundant-tags",
+        "-Wvolatile",
+    ],
+    "11.1.0": [
+        "-Wdeprecated-enum-enum-conversion",
+        "-Wdeprecated-enum-float-conversion",
+        "-Winvalid-imported-macros",
+    ],
+}  # type: T.Dict[str, T.List[str]]
+
+# GCC warnings for Objective C and Objective C++
+# Omitted non-general or legacy warnings:
+#   -Wtraditional
+#   -Wtraditional-conversion
+gnu_objc_warning_args = {
+    "0.0.0": [
+        "-Wselector",
+    ],
+    "3.3": [
+        "-Wundeclared-selector",
+    ],
+    "4.1.0": [
+        "-Wassign-intercept",
+        "-Wstrict-selector-match",
+    ],
+}  # type: T.Dict[str, T.List[str]]
+
+
+@functools.lru_cache(maxsize=None)
+def gnulike_default_include_dirs(compiler: T.Tuple[str, ...], lang: str) -> 'ImmutableListProtocol[str]':
+    lang_map = {
+        'c': 'c',
+        'cpp': 'c++',
+        'objc': 'objective-c',
+        'objcpp': 'objective-c++'
+    }
+    if lang not in lang_map:
+        return []
+    lang = lang_map[lang]
+    env = os.environ.copy()
+    env["LC_ALL"] = 'C'
+    cmd = list(compiler) + [f'-x{lang}', '-E', '-v', '-']
+    _, stdout, _ = mesonlib.Popen_safe(cmd, stderr=subprocess.STDOUT, env=env)
+    parse_state = 0
+    paths = []  # type: T.List[str]
+    for line in stdout.split('\n'):
+        line = line.strip(' \n\r\t')
+        if parse_state == 0:
+            if line == '#include "..." search starts here:':
+                parse_state = 1
+        elif parse_state == 1:
+            if line == '#include <...> search starts here:':
+                parse_state = 2
+            else:
+                paths.append(line)
+        elif parse_state == 2:
+            if line == 'End of search list.':
+                break
+            else:
+                paths.append(line)
+    if not paths:
+        mlog.warning('No include directory found parsing "{cmd}" output'.format(cmd=" ".join(cmd)))
+    # Append a normalized copy of paths to make path lookup easier
+    paths += [os.path.normpath(x) for x in paths]
+    return paths
+
+
+class GnuLikeCompiler(Compiler, metaclass=abc.ABCMeta):
+    """
+    GnuLikeCompiler is a common interface to all compilers implementing
+    the GNU-style commandline interface. This includes GCC, Clang
+    and ICC. Certain functionality between them is different and requires
+    that the actual concrete subclass define their own implementation.
+    """
+
+    LINKER_PREFIX = '-Wl,'
+
+    def __init__(self) -> None:
+        self.base_options = {
+            OptionKey(o) for o in ['b_pch', 'b_lto', 'b_pgo', 'b_coverage',
+                                   'b_ndebug', 'b_staticpic', 'b_pie']}
+        if not (self.info.is_windows() or self.info.is_cygwin() or self.info.is_openbsd()):
+            self.base_options.add(OptionKey('b_lundef'))
+        if not self.info.is_windows() or self.info.is_cygwin():
+            self.base_options.add(OptionKey('b_asneeded'))
+        if not self.info.is_hurd():
+            self.base_options.add(OptionKey('b_sanitize'))
+        # All GCC-like backends can do assembly
+        self.can_compile_suffixes.add('s')
+
+    def get_pic_args(self) -> T.List[str]:
+        if self.info.is_windows() or self.info.is_cygwin() or self.info.is_darwin():
+            return [] # On Window and OS X, pic is always on.
+        return ['-fPIC']
+
+    def get_pie_args(self) -> T.List[str]:
+        return ['-fPIE']
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return gnulike_buildtype_args[buildtype]
+
+    @abc.abstractmethod
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        pass
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return clike_debug_args[is_debug]
+
+    @abc.abstractmethod
+    def get_pch_suffix(self) -> str:
+        pass
+
+    def split_shlib_to_parts(self, fname: str) -> T.Tuple[str, str]:
+        return os.path.dirname(fname), fname
+
+    def get_instruction_set_args(self, instruction_set: str) -> T.Optional[T.List[str]]:
+        return gnulike_instruction_set_args.get(instruction_set, None)
+
+    def get_default_include_dirs(self) -> T.List[str]:
+        return gnulike_default_include_dirs(tuple(self.get_exelist(ccache=False)), self.language).copy()
+
+    @abc.abstractmethod
+    def openmp_flags(self) -> T.List[str]:
+        pass
+
+    def gnu_symbol_visibility_args(self, vistype: str) -> T.List[str]:
+        if vistype == 'inlineshidden' and self.language not in {'cpp', 'objcpp'}:
+            vistype = 'hidden'
+        return gnu_symbol_visibility_args[vistype]
+
+    def gen_vs_module_defs_args(self, defsfile: str) -> T.List[str]:
+        if not isinstance(defsfile, str):
+            raise RuntimeError('Module definitions file should be str')
+        # On Windows targets, .def files may be specified on the linker command
+        # line like an object file.
+        if self.info.is_windows() or self.info.is_cygwin():
+            return [defsfile]
+        # For other targets, discard the .def file.
+        return []
+
+    def get_argument_syntax(self) -> str:
+        return 'gcc'
+
+    def get_profile_generate_args(self) -> T.List[str]:
+        return ['-fprofile-generate']
+
+    def get_profile_use_args(self) -> T.List[str]:
+        return ['-fprofile-use']
+
+    def get_gui_app_args(self, value: bool) -> T.List[str]:
+        return ['-mwindows' if value else '-mconsole']
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str], build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '-L':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+
+        return parameter_list
+
+    @functools.lru_cache()
+    def _get_search_dirs(self, env: 'Environment') -> str:
+        extra_args = ['--print-search-dirs']
+        with self._build_wrapper('', env, extra_args=extra_args,
+                                 dependencies=None, mode='compile',
+                                 want_output=True) as p:
+            return p.stdout
+
+    def _split_fetch_real_dirs(self, pathstr: str) -> T.List[str]:
+        # We need to use the path separator used by the compiler for printing
+        # lists of paths ("gcc --print-search-dirs"). By default
+        # we assume it uses the platform native separator.
+        pathsep = os.pathsep
+
+        # clang uses ':' instead of ';' on Windows https://reviews.llvm.org/D61121
+        # so we need to repair things like 'C:\foo:C:\bar'
+        if pathsep == ';':
+            pathstr = re.sub(r':([^/\\])', r';\1', pathstr)
+
+        # pathlib treats empty paths as '.', so filter those out
+        paths = [p for p in pathstr.split(pathsep) if p]
+
+        result = []
+        for p in paths:
+            # GCC returns paths like this:
+            # /usr/lib/gcc/x86_64-linux-gnu/8/../../../../x86_64-linux-gnu/lib
+            # It would make sense to normalize them to get rid of the .. parts
+            # Sadly when you are on a merged /usr fs it also kills these:
+            # /lib/x86_64-linux-gnu
+            # since /lib is a symlink to /usr/lib. This would mean
+            # paths under /lib would be considered not a "system path",
+            # which is wrong and breaks things. Store everything, just to be sure.
+            pobj = pathlib.Path(p)
+            unresolved = pobj.as_posix()
+            if pobj.exists():
+                if unresolved not in result:
+                    result.append(unresolved)
+                try:
+                    resolved = pathlib.Path(p).resolve().as_posix()
+                    if resolved not in result:
+                        result.append(resolved)
+                except FileNotFoundError:
+                    pass
+        return result
+
+    def get_compiler_dirs(self, env: 'Environment', name: str) -> T.List[str]:
+        '''
+        Get dirs from the compiler, either `libraries:` or `programs:`
+        '''
+        stdo = self._get_search_dirs(env)
+        for line in stdo.split('\n'):
+            if line.startswith(name + ':'):
+                return self._split_fetch_real_dirs(line.split('=', 1)[1])
+        return []
+
+    def get_lto_compile_args(self, *, threads: int = 0, mode: str = 'default') -> T.List[str]:
+        # This provides a base for many compilers, GCC and Clang override this
+        # for their specific arguments
+        return ['-flto']
+
+    def sanitizer_compile_args(self, value: str) -> T.List[str]:
+        if value == 'none':
+            return []
+        args = ['-fsanitize=' + value]
+        if 'address' in value:  # for -fsanitize=address,undefined
+            args.append('-fno-omit-frame-pointer')
+        return args
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return ['-o', target]
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['-MD', '-MQ', outtarget, '-MF', outfile]
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return ['-c']
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if not path:
+            path = '.'
+        if is_system:
+            return ['-isystem' + path]
+        return ['-I' + path]
+
+    @classmethod
+    def use_linker_args(cls, linker: str, version: str) -> T.List[str]:
+        if linker not in {'gold', 'bfd', 'lld'}:
+            raise mesonlib.MesonException(
+                f'Unsupported linker, only bfd, gold, and lld are supported, not {linker}.')
+        return [f'-fuse-ld={linker}']
+
+    def get_coverage_args(self) -> T.List[str]:
+        return ['--coverage']
+
+    def get_preprocess_to_file_args(self) -> T.List[str]:
+        # We want to allow preprocessing files with any extension, such as
+        # foo.c.in. In that case we need to tell GCC/CLANG to treat them as
+        # assembly file.
+        return self.get_preprocess_only_args() + ['-x', 'assembler-with-cpp']
+
+
+class GnuCompiler(GnuLikeCompiler):
+    """
+    GnuCompiler represents an actual GCC in its many incarnations.
+    Compilers imitating GCC (Clang/Intel) should use the GnuLikeCompiler ABC.
+    """
+    id = 'gcc'
+
+    def __init__(self, defines: T.Optional[T.Dict[str, str]]):
+        super().__init__()
+        self.defines = defines or {}
+        self.base_options.update({OptionKey('b_colorout'), OptionKey('b_lto_threads')})
+
+    def get_colorout_args(self, colortype: str) -> T.List[str]:
+        if mesonlib.version_compare(self.version, '>=4.9.0'):
+            return gnu_color_args[colortype][:]
+        return []
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        # Mypy doesn't understand cooperative inheritance
+        args = super().get_warn_args(level)
+        if mesonlib.version_compare(self.version, '<4.8.0') and '-Wpedantic' in args:
+            # -Wpedantic was added in 4.8.0
+            # https://gcc.gnu.org/gcc-4.8/changes.html
+            args[args.index('-Wpedantic')] = '-pedantic'
+        return args
+
+    def supported_warn_args(self, warn_args_by_version: T.Dict[str, T.List[str]]) -> T.List[str]:
+        result = []
+        for version, warn_args in warn_args_by_version.items():
+            if mesonlib.version_compare(self.version, '>=' + version):
+                result += warn_args
+        return result
+
+    def has_builtin_define(self, define: str) -> bool:
+        return define in self.defines
+
+    def get_builtin_define(self, define: str) -> T.Optional[str]:
+        if define in self.defines:
+            return self.defines[define]
+        return None
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return gnu_optimization_args[optimization_level]
+
+    def get_pch_suffix(self) -> str:
+        return 'gch'
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['-fopenmp']
+
+    def has_arguments(self, args: T.List[str], env: 'Environment', code: str,
+                      mode: str) -> T.Tuple[bool, bool]:
+        # For some compiler command line arguments, the GNU compilers will
+        # emit a warning on stderr indicating that an option is valid for a
+        # another language, but still complete with exit_success
+        with self._build_wrapper(code, env, args, None, mode) as p:
+            result = p.returncode == 0
+            if self.language in {'cpp', 'objcpp'} and 'is valid for C/ObjC' in p.stderr:
+                result = False
+            if self.language in {'c', 'objc'} and 'is valid for C++/ObjC++' in p.stderr:
+                result = False
+        return result, p.cached
+
+    def get_has_func_attribute_extra_args(self, name: str) -> T.List[str]:
+        # GCC only warns about unknown or ignored attributes, so force an
+        # error.
+        return ['-Werror=attributes']
+
+    def get_prelink_args(self, prelink_name: str, obj_list: T.List[str]) -> T.List[str]:
+        return ['-r', '-o', prelink_name] + obj_list
+
+    def get_lto_compile_args(self, *, threads: int = 0, mode: str = 'default') -> T.List[str]:
+        if threads == 0:
+            if mesonlib.version_compare(self.version, '>= 10.0'):
+                return ['-flto=auto']
+            # This matches clang's behavior of using the number of cpus
+            return [f'-flto={multiprocessing.cpu_count()}']
+        elif threads > 0:
+            return [f'-flto={threads}']
+        return super().get_lto_compile_args(threads=threads)
+
+    @classmethod
+    def use_linker_args(cls, linker: str, version: str) -> T.List[str]:
+        if linker == 'mold' and mesonlib.version_compare(version, '>=12.0.1'):
+            return ['-fuse-ld=mold']
+        return super().use_linker_args(linker, version)
+
+    def get_profile_use_args(self) -> T.List[str]:
+        return super().get_profile_use_args() + ['-fprofile-correction']
diff --git a/mesonbuild/compilers/mixins/intel.py b/mesonbuild/compilers/mixins/intel.py
new file mode 100644
index 0000000..b793fa8
--- /dev/null
+++ b/mesonbuild/compilers/mixins/intel.py
@@ -0,0 +1,185 @@
+# Copyright 2019 The meson development team
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Abstractions for the Intel Compiler families.
+
+Intel provides both a posix/gcc-like compiler (ICC) for MacOS and Linux,
+with Meson mixin IntelGnuLikeCompiler.
+For Windows, the Intel msvc-like compiler (ICL) Meson mixin
+is IntelVisualStudioLikeCompiler.
+"""
+
+import os
+import typing as T
+
+from ... import mesonlib
+from ..compilers import CompileCheckMode
+from .gnu import GnuLikeCompiler
+from .visualstudio import VisualStudioLikeCompiler
+
+# XXX: avoid circular dependencies
+# TODO: this belongs in a posix compiler class
+# NOTE: the default Intel optimization is -O2, unlike GNU which defaults to -O0.
+# this can be surprising, particularly for debug builds, so we specify the
+# default as -O0.
+# https://software.intel.com/en-us/cpp-compiler-developer-guide-and-reference-o
+# https://software.intel.com/en-us/cpp-compiler-developer-guide-and-reference-g
+# https://software.intel.com/en-us/fortran-compiler-developer-guide-and-reference-o
+# https://software.intel.com/en-us/fortran-compiler-developer-guide-and-reference-g
+# https://software.intel.com/en-us/fortran-compiler-developer-guide-and-reference-traceback
+# https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html
+
+
+class IntelGnuLikeCompiler(GnuLikeCompiler):
+    """
+    Tested on linux for ICC 14.0.3, 15.0.6, 16.0.4, 17.0.1, 19.0
+    debugoptimized: -g -O2
+    release: -O3
+    minsize: -O2
+    """
+
+    BUILD_ARGS = {
+        'plain': [],
+        'debug': ["-g", "-traceback"],
+        'debugoptimized': ["-g", "-traceback"],
+        'release': [],
+        'minsize': [],
+        'custom': [],
+    }  # type: T.Dict[str, T.List[str]]
+
+    OPTIM_ARGS: T.Dict[str, T.List[str]] = {
+        'plain': [],
+        '0': ['-O0'],
+        'g': ['-O0'],
+        '1': ['-O1'],
+        '2': ['-O2'],
+        '3': ['-O3'],
+        's': ['-Os'],
+    }
+    id = 'intel'
+
+    def __init__(self) -> None:
+        super().__init__()
+        # As of 19.0.0 ICC doesn't have sanitizer, color, or lto support.
+        #
+        # It does have IPO, which serves much the same purpose as LOT, but
+        # there is an unfortunate rule for using IPO (you can't control the
+        # name of the output file) which break assumptions meson makes
+        self.base_options = {mesonlib.OptionKey(o) for o in [
+            'b_pch', 'b_lundef', 'b_asneeded', 'b_pgo', 'b_coverage',
+            'b_ndebug', 'b_staticpic', 'b_pie']}
+        self.lang_header = 'none'
+
+    def get_pch_suffix(self) -> str:
+        return 'pchi'
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        return ['-pch', '-pch_dir', os.path.join(pch_dir), '-x',
+                self.lang_header, '-include', header, '-x', 'none']
+
+    def get_pch_name(self, header_name: str) -> str:
+        return os.path.basename(header_name) + '.' + self.get_pch_suffix()
+
+    def openmp_flags(self) -> T.List[str]:
+        if mesonlib.version_compare(self.version, '>=15.0.0'):
+            return ['-qopenmp']
+        else:
+            return ['-openmp']
+
+    def get_compiler_check_args(self, mode: CompileCheckMode) -> T.List[str]:
+        extra_args = [
+            '-diag-error', '10006',  # ignoring unknown option
+            '-diag-error', '10148',  # Option not supported
+            '-diag-error', '10155',  # ignoring argument required
+            '-diag-error', '10156',  # ignoring not argument allowed
+            '-diag-error', '10157',  # Ignoring argument of the wrong type
+            '-diag-error', '10158',  # Argument must be separate. Can be hit by trying an option like -foo-bar=foo when -foo=bar is a valid option but -foo-bar isn't
+        ]
+        return super().get_compiler_check_args(mode) + extra_args
+
+    def get_profile_generate_args(self) -> T.List[str]:
+        return ['-prof-gen=threadsafe']
+
+    def get_profile_use_args(self) -> T.List[str]:
+        return ['-prof-use']
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return self.BUILD_ARGS[buildtype]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return self.OPTIM_ARGS[optimization_level]
+
+    def get_has_func_attribute_extra_args(self, name: str) -> T.List[str]:
+        return ['-diag-error', '1292']
+
+
+class IntelVisualStudioLikeCompiler(VisualStudioLikeCompiler):
+
+    """Abstractions for ICL, the Intel compiler on Windows."""
+
+    BUILD_ARGS = {
+        'plain': [],
+        'debug': ["/Zi", "/traceback"],
+        'debugoptimized': ["/Zi", "/traceback"],
+        'release': [],
+        'minsize': [],
+        'custom': [],
+    }  # type: T.Dict[str, T.List[str]]
+
+    OPTIM_ARGS: T.Dict[str, T.List[str]] = {
+        'plain': [],
+        '0': ['/Od'],
+        'g': ['/Od'],
+        '1': ['/O1'],
+        '2': ['/O2'],
+        '3': ['/O3'],
+        's': ['/Os'],
+    }
+
+    id = 'intel-cl'
+
+    def get_compiler_check_args(self, mode: CompileCheckMode) -> T.List[str]:
+        args = super().get_compiler_check_args(mode)
+        if mode is not CompileCheckMode.LINK:
+            args.extend([
+                '/Qdiag-error:10006',  # ignoring unknown option
+                '/Qdiag-error:10148',  # Option not supported
+                '/Qdiag-error:10155',  # ignoring argument required
+                '/Qdiag-error:10156',  # ignoring not argument allowed
+                '/Qdiag-error:10157',  # Ignoring argument of the wrong type
+                '/Qdiag-error:10158',  # Argument must be separate. Can be hit by trying an option like -foo-bar=foo when -foo=bar is a valid option but -foo-bar isn't
+            ])
+        return args
+
+    def get_toolset_version(self) -> T.Optional[str]:
+        # ICL provides a cl.exe that returns the version of MSVC it tries to
+        # emulate, so we'll get the version from that and pass it to the same
+        # function the real MSVC uses to calculate the toolset version.
+        _, _, err = mesonlib.Popen_safe(['cl.exe'])
+        v1, v2, *_ = mesonlib.search_version(err).split('.')
+        version = int(v1 + v2)
+        return self._calculate_toolset_version(version)
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['/Qopenmp']
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return self.BUILD_ARGS[buildtype]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return self.OPTIM_ARGS[optimization_level]
+
+    def get_pch_base_name(self, header: str) -> str:
+        return os.path.basename(header)
diff --git a/mesonbuild/compilers/mixins/islinker.py b/mesonbuild/compilers/mixins/islinker.py
new file mode 100644
index 0000000..711e3e3
--- /dev/null
+++ b/mesonbuild/compilers/mixins/islinker.py
@@ -0,0 +1,130 @@
+# Copyright 2019 The Meson development team
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Mixins for compilers that *are* linkers.
+
+While many compilers (such as gcc and clang) are used by meson to dispatch
+linker commands and other (like MSVC) are not, a few (such as DMD) actually
+are both the linker and compiler in one binary. This module provides mixin
+classes for those cases.
+"""
+
+import typing as T
+
+from ...mesonlib import EnvironmentException, MesonException, is_windows
+
+if T.TYPE_CHECKING:
+    from ...coredata import KeyedOptionDictType
+    from ...environment import Environment
+    from ...compilers.compilers import Compiler
+else:
+    # This is a bit clever, for mypy we pretend that these mixins descend from
+    # Compiler, so we get all of the methods and attributes defined for us, but
+    # for runtime we make them descend from object (which all classes normally
+    # do). This gives up DRYer type checking, with no runtime impact
+    Compiler = object
+
+
+class BasicLinkerIsCompilerMixin(Compiler):
+
+    """Provides a baseline of methods that a linker would implement.
+
+    In every case this provides a "no" or "empty" answer. If a compiler
+    implements any of these it needs a different mixin or to override that
+    functionality itself.
+    """
+
+    def sanitizer_link_args(self, value: str) -> T.List[str]:
+        return []
+
+    def get_lto_link_args(self, *, threads: int = 0, mode: str = 'default',
+                          thinlto_cache_dir: T.Optional[str] = None) -> T.List[str]:
+        return []
+
+    def can_linker_accept_rsp(self) -> bool:
+        return is_windows()
+
+    def get_linker_exelist(self) -> T.List[str]:
+        return self.exelist.copy()
+
+    def get_linker_output_args(self, outputname: str) -> T.List[str]:
+        return []
+
+    def get_linker_always_args(self) -> T.List[str]:
+        return []
+
+    def get_linker_lib_prefix(self) -> str:
+        return ''
+
+    def get_option_link_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return []
+
+    def has_multi_link_args(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]:
+        return False, False
+
+    def get_link_debugfile_args(self, targetfile: str) -> T.List[str]:
+        return []
+
+    def get_std_shared_lib_link_args(self) -> T.List[str]:
+        return []
+
+    def get_std_shared_module_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        return self.get_std_shared_lib_link_args()
+
+    def get_link_whole_for(self, args: T.List[str]) -> T.List[str]:
+        raise EnvironmentException(f'Linker {self.id} does not support link_whole')
+
+    def get_allow_undefined_link_args(self) -> T.List[str]:
+        raise EnvironmentException(f'Linker {self.id} does not support allow undefined')
+
+    def get_pie_link_args(self) -> T.List[str]:
+        raise EnvironmentException(f'Linker {self.id} does not support position-independent executable')
+
+    def get_undefined_link_args(self) -> T.List[str]:
+        return []
+
+    def get_coverage_link_args(self) -> T.List[str]:
+        return []
+
+    def no_undefined_link_args(self) -> T.List[str]:
+        return []
+
+    def bitcode_args(self) -> T.List[str]:
+        raise MesonException("This linker doesn't support bitcode bundles")
+
+    def get_soname_args(self, env: 'Environment', prefix: str, shlib_name: str,
+                        suffix: str, soversion: str,
+                        darwin_versions: T.Tuple[str, str]) -> T.List[str]:
+        raise MesonException("This linker doesn't support soname args")
+
+    def build_rpath_args(self, env: 'Environment', build_dir: str, from_dir: str,
+                         rpath_paths: T.Tuple[str, ...], build_rpath: str,
+                         install_rpath: str) -> T.Tuple[T.List[str], T.Set[bytes]]:
+        return ([], set())
+
+    def get_asneeded_args(self) -> T.List[str]:
+        return []
+
+    def get_buildtype_linker_args(self, buildtype: str) -> T.List[str]:
+        return []
+
+    def get_link_debugfile_name(self, targetfile: str) -> str:
+        return ''
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def thread_link_flags(self, env: 'Environment') -> T.List[str]:
+        return []
diff --git a/mesonbuild/compilers/mixins/pgi.py b/mesonbuild/compilers/mixins/pgi.py
new file mode 100644
index 0000000..2fa736c
--- /dev/null
+++ b/mesonbuild/compilers/mixins/pgi.py
@@ -0,0 +1,113 @@
+# Copyright 2019 The meson development team
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Abstractions for the PGI family of compilers."""
+
+import typing as T
+import os
+from pathlib import Path
+
+from ..compilers import clike_debug_args, clike_optimization_args
+from ...mesonlib import OptionKey
+
+if T.TYPE_CHECKING:
+    from ...environment import Environment
+    from ...compilers.compilers import Compiler
+else:
+    # This is a bit clever, for mypy we pretend that these mixins descend from
+    # Compiler, so we get all of the methods and attributes defined for us, but
+    # for runtime we make them descend from object (which all classes normally
+    # do). This gives up DRYer type checking, with no runtime impact
+    Compiler = object
+
+pgi_buildtype_args = {
+    'plain': [],
+    'debug': [],
+    'debugoptimized': [],
+    'release': [],
+    'minsize': [],
+    'custom': [],
+}  # type: T.Dict[str, T.List[str]]
+
+
+class PGICompiler(Compiler):
+
+    id = 'pgi'
+
+    def __init__(self) -> None:
+        self.base_options = {OptionKey('b_pch')}
+
+        default_warn_args = ['-Minform=inform']
+        self.warn_args: T.Dict[str, T.List[str]] = {
+            '0': [],
+            '1': default_warn_args,
+            '2': default_warn_args,
+            '3': default_warn_args,
+            'everything': default_warn_args
+        }
+
+    def get_module_incdir_args(self) -> T.Tuple[str]:
+        return ('-module', )
+
+    def get_no_warn_args(self) -> T.List[str]:
+        return ['-silent']
+
+    def gen_import_library_args(self, implibname: str) -> T.List[str]:
+        return []
+
+    def get_pic_args(self) -> T.List[str]:
+        # PGI -fPIC is Linux only.
+        if self.info.is_linux():
+            return ['-fPIC']
+        return []
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['-mp']
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return pgi_buildtype_args[buildtype]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return clike_optimization_args[optimization_level]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return clike_debug_args[is_debug]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str], build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '-L':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+        return parameter_list
+
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+    def get_pch_suffix(self) -> str:
+        # PGI defaults to .pch suffix for PCH on Linux and Windows with --pch option
+        return 'pch'
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        # PGI supports PCH for C++ only.
+        hdr = Path(pch_dir).resolve().parent / header
+        if self.language == 'cpp':
+            return ['--pch',
+                    '--pch_dir', str(hdr.parent),
+                    f'-I{hdr.parent}']
+        else:
+            return []
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        # PGI cannot accept -pthread, it's already threaded
+        return []
diff --git a/mesonbuild/compilers/mixins/ti.py b/mesonbuild/compilers/mixins/ti.py
new file mode 100644
index 0000000..950c97f
--- /dev/null
+++ b/mesonbuild/compilers/mixins/ti.py
@@ -0,0 +1,151 @@
+# Copyright 2012-2019 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Representations specific to the Texas Instruments compiler family."""
+
+import os
+import typing as T
+
+from ...mesonlib import EnvironmentException
+
+if T.TYPE_CHECKING:
+    from ...envconfig import MachineInfo
+    from ...environment import Environment
+    from ...compilers.compilers import Compiler
+else:
+    # This is a bit clever, for mypy we pretend that these mixins descend from
+    # Compiler, so we get all of the methods and attributes defined for us, but
+    # for runtime we make them descend from object (which all classes normally
+    # do). This gives up DRYer type checking, with no runtime impact
+    Compiler = object
+
+ti_buildtype_args = {
+    'plain': [],
+    'debug': [],
+    'debugoptimized': [],
+    'release': [],
+    'minsize': [],
+    'custom': [],
+}  # type: T.Dict[str, T.List[str]]
+
+ti_optimization_args = {
+    'plain': [],
+    '0': ['-O0'],
+    'g': ['-Ooff'],
+    '1': ['-O1'],
+    '2': ['-O2'],
+    '3': ['-O3'],
+    's': ['-O4']
+}  # type: T.Dict[str, T.List[str]]
+
+ti_debug_args = {
+    False: [],
+    True: ['-g']
+}  # type: T.Dict[bool, T.List[str]]
+
+
+class TICompiler(Compiler):
+
+    id = 'ti'
+
+    def __init__(self) -> None:
+        if not self.is_cross:
+            raise EnvironmentException('TI compilers only support cross-compilation.')
+
+        self.can_compile_suffixes.add('asm')    # Assembly
+        self.can_compile_suffixes.add('cla')    # Control Law Accelerator (CLA) used in C2000
+
+        default_warn_args = []  # type: T.List[str]
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + [],
+                          '3': default_warn_args + [],
+                          'everything': default_warn_args + []}  # type: T.Dict[str, T.List[str]]
+
+    def get_pic_args(self) -> T.List[str]:
+        # PIC support is not enabled by default for TI compilers,
+        # if users want to use it, they need to add the required arguments explicitly
+        return []
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return ti_buildtype_args[buildtype]
+
+    def get_pch_suffix(self) -> str:
+        return 'pch'
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        return []
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def get_coverage_args(self) -> T.List[str]:
+        return []
+
+    def get_no_stdinc_args(self) -> T.List[str]:
+        return []
+
+    def get_no_stdlib_link_args(self) -> T.List[str]:
+        return []
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return ti_optimization_args[optimization_level]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return ti_debug_args[is_debug]
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return []
+
+    def get_no_optimization_args(self) -> T.List[str]:
+        return ['-Ooff']
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [f'--output_file={target}']
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['--emit_warnings_as_errors']
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if path == '':
+            path = '.'
+        return ['-I=' + path]
+
+    @classmethod
+    def _unix_args_to_native(cls, args: T.List[str], info: MachineInfo) -> T.List[str]:
+        result = []
+        for i in args:
+            if i.startswith('-D'):
+                i = '--define=' + i[2:]
+            if i.startswith('-Wl,-rpath='):
+                continue
+            elif i == '--print-search-dirs':
+                continue
+            elif i.startswith('-L'):
+                continue
+            result.append(i)
+        return result
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str], build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:15] == '--include_path=':
+                parameter_list[idx] = i[:15] + os.path.normpath(os.path.join(build_dir, i[15:]))
+            if i[:2] == '-I':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+
+        return parameter_list
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['--preproc_with_compile', f'--preproc_dependency={outfile}']
diff --git a/mesonbuild/compilers/mixins/visualstudio.py b/mesonbuild/compilers/mixins/visualstudio.py
new file mode 100644
index 0000000..864d3b4
--- /dev/null
+++ b/mesonbuild/compilers/mixins/visualstudio.py
@@ -0,0 +1,500 @@
+# Copyright 2019 The meson development team
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Abstractions to simplify compilers that implement an MSVC compatible
+interface.
+"""
+
+import abc
+import os
+import typing as T
+
+from ... import arglist
+from ... import mesonlib
+from ... import mlog
+
+if T.TYPE_CHECKING:
+    from ...environment import Environment
+    from ...dependencies import Dependency
+    from .clike import CLikeCompiler as Compiler
+else:
+    # This is a bit clever, for mypy we pretend that these mixins descend from
+    # Compiler, so we get all of the methods and attributes defined for us, but
+    # for runtime we make them descend from object (which all classes normally
+    # do). This gives up DRYer type checking, with no runtime impact
+    Compiler = object
+
+vs32_instruction_set_args = {
+    'mmx': ['/arch:SSE'], # There does not seem to be a flag just for MMX
+    'sse': ['/arch:SSE'],
+    'sse2': ['/arch:SSE2'],
+    'sse3': ['/arch:AVX'], # VS leaped from SSE2 directly to AVX.
+    'sse41': ['/arch:AVX'],
+    'sse42': ['/arch:AVX'],
+    'avx': ['/arch:AVX'],
+    'avx2': ['/arch:AVX2'],
+    'neon': None,
+}  # T.Dicst[str, T.Optional[T.List[str]]]
+
+# The 64 bit compiler defaults to /arch:avx.
+vs64_instruction_set_args = {
+    'mmx': ['/arch:AVX'],
+    'sse': ['/arch:AVX'],
+    'sse2': ['/arch:AVX'],
+    'sse3': ['/arch:AVX'],
+    'ssse3': ['/arch:AVX'],
+    'sse41': ['/arch:AVX'],
+    'sse42': ['/arch:AVX'],
+    'avx': ['/arch:AVX'],
+    'avx2': ['/arch:AVX2'],
+    'neon': None,
+}  # T.Dicst[str, T.Optional[T.List[str]]]
+
+msvc_optimization_args = {
+    'plain': [],
+    '0': ['/Od'],
+    'g': [], # No specific flag to optimize debugging, /Zi or /ZI will create debug information
+    '1': ['/O1'],
+    '2': ['/O2'],
+    '3': ['/O2', '/Gw'],
+    's': ['/O1', '/Gw'],
+}  # type: T.Dict[str, T.List[str]]
+
+msvc_debug_args = {
+    False: [],
+    True: ['/Zi']
+}  # type: T.Dict[bool, T.List[str]]
+
+
+class VisualStudioLikeCompiler(Compiler, metaclass=abc.ABCMeta):
+
+    """A common interface for all compilers implementing an MSVC-style
+    interface.
+
+    A number of compilers attempt to mimic MSVC, with varying levels of
+    success, such as Clang-CL and ICL (the Intel C/C++ Compiler for Windows).
+    This class implements as much common logic as possible.
+    """
+
+    std_warn_args = ['/W3']
+    std_opt_args = ['/O2']
+    ignore_libs = arglist.UNIXY_COMPILER_INTERNAL_LIBS + ['execinfo']
+    internal_libs = []  # type: T.List[str]
+
+    crt_args = {
+        'none': [],
+        'md': ['/MD'],
+        'mdd': ['/MDd'],
+        'mt': ['/MT'],
+        'mtd': ['/MTd'],
+    }  # type: T.Dict[str, T.List[str]]
+
+    # /showIncludes is needed for build dependency tracking in Ninja
+    # See: https://ninja-build.org/manual.html#_deps
+    # Assume UTF-8 sources by default, but self.unix_args_to_native() removes it
+    # if `/source-charset` is set too.
+    # It is also dropped if Visual Studio 2013 or earlier is used, since it would
+    # not be supported in that case.
+    always_args = ['/nologo', '/showIncludes', '/utf-8']
+    warn_args = {
+        '0': [],
+        '1': ['/W2'],
+        '2': ['/W3'],
+        '3': ['/W4'],
+        'everything': ['/Wall'],
+    }  # type: T.Dict[str, T.List[str]]
+
+    INVOKES_LINKER = False
+
+    def __init__(self, target: str):
+        self.base_options = {mesonlib.OptionKey(o) for o in ['b_pch', 'b_ndebug', 'b_vscrt']} # FIXME add lto, pgo and the like
+        self.target = target
+        self.is_64 = ('x64' in target) or ('x86_64' in target)
+        # do some canonicalization of target machine
+        if 'x86_64' in target:
+            self.machine = 'x64'
+        elif '86' in target:
+            self.machine = 'x86'
+        elif 'aarch64' in target:
+            self.machine = 'arm64'
+        elif 'arm' in target:
+            self.machine = 'arm'
+        else:
+            self.machine = target
+        if mesonlib.version_compare(self.version, '>=19.28.29910'): # VS 16.9.0 includes cl 19.28.29910
+            self.base_options.add(mesonlib.OptionKey('b_sanitize'))
+        assert self.linker is not None
+        self.linker.machine = self.machine
+
+    # Override CCompiler.get_always_args
+    def get_always_args(self) -> T.List[str]:
+        # TODO: use ImmutableListProtocol[str] here instead
+        return self.always_args.copy()
+
+    def get_pch_suffix(self) -> str:
+        return 'pch'
+
+    def get_pch_name(self, header: str) -> str:
+        chopped = os.path.basename(header).split('.')[:-1]
+        chopped.append(self.get_pch_suffix())
+        pchname = '.'.join(chopped)
+        return pchname
+
+    def get_pch_base_name(self, header: str) -> str:
+        # This needs to be implemented by inheriting classes
+        raise NotImplementedError
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        base = self.get_pch_base_name(header)
+        pchname = self.get_pch_name(header)
+        return ['/FI' + base, '/Yu' + base, '/Fp' + os.path.join(pch_dir, pchname)]
+
+    def get_preprocess_only_args(self) -> T.List[str]:
+        return ['/EP']
+
+    def get_preprocess_to_file_args(self) -> T.List[str]:
+        return ['/EP', '/P']
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return ['/c']
+
+    def get_no_optimization_args(self) -> T.List[str]:
+        return ['/Od', '/Oi-']
+
+    def sanitizer_compile_args(self, value: str) -> T.List[str]:
+        if value == 'none':
+            return []
+        if value != 'address':
+            raise mesonlib.MesonException('VS only supports address sanitizer at the moment.')
+        return ['/fsanitize=address']
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        if self.mode == 'PREPROCESSOR':
+            return ['/Fi' + target]
+        if target.endswith('.exe'):
+            return ['/Fe' + target]
+        return ['/Fo' + target]
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return []
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return msvc_debug_args[is_debug]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        args = msvc_optimization_args[optimization_level]
+        if mesonlib.version_compare(self.version, '<18.0'):
+            args = [arg for arg in args if arg != '/Gw']
+        return args
+
+    def linker_to_compiler_args(self, args: T.List[str]) -> T.List[str]:
+        return ['/link'] + args
+
+    def get_pic_args(self) -> T.List[str]:
+        return [] # PIC is handled by the loader on Windows
+
+    def gen_vs_module_defs_args(self, defsfile: str) -> T.List[str]:
+        if not isinstance(defsfile, str):
+            raise RuntimeError('Module definitions file should be str')
+        # With MSVC, DLLs only export symbols that are explicitly exported,
+        # so if a module defs file is specified, we use that to export symbols
+        return ['/DEF:' + defsfile]
+
+    def gen_pch_args(self, header: str, source: str, pchname: str) -> T.Tuple[str, T.List[str]]:
+        objname = os.path.splitext(pchname)[0] + '.obj'
+        return objname, ['/Yc' + header, '/Fp' + pchname, '/Fo' + objname]
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['/openmp']
+
+    def openmp_link_flags(self) -> T.List[str]:
+        return []
+
+    # FIXME, no idea what these should be.
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    @classmethod
+    def unix_args_to_native(cls, args: T.List[str]) -> T.List[str]:
+        result: T.List[str] = []
+        for i in args:
+            # -mms-bitfields is specific to MinGW-GCC
+            # -pthread is only valid for GCC
+            if i in {'-mms-bitfields', '-pthread'}:
+                continue
+            if i.startswith('-LIBPATH:'):
+                i = '/LIBPATH:' + i[9:]
+            elif i.startswith('-L'):
+                i = '/LIBPATH:' + i[2:]
+            # Translate GNU-style -lfoo library name to the import library
+            elif i.startswith('-l'):
+                name = i[2:]
+                if name in cls.ignore_libs:
+                    # With MSVC, these are provided by the C runtime which is
+                    # linked in by default
+                    continue
+                else:
+                    i = name + '.lib'
+            elif i.startswith('-isystem'):
+                # just use /I for -isystem system include path s
+                if i.startswith('-isystem='):
+                    i = '/I' + i[9:]
+                else:
+                    i = '/I' + i[8:]
+            elif i.startswith('-idirafter'):
+                # same as -isystem, but appends the path instead
+                if i.startswith('-idirafter='):
+                    i = '/I' + i[11:]
+                else:
+                    i = '/I' + i[10:]
+            # -pthread in link flags is only used on Linux
+            elif i == '-pthread':
+                continue
+            # cl.exe does not allow specifying both, so remove /utf-8 that we
+            # added automatically in the case the user overrides it manually.
+            elif (i.startswith('/source-charset:')
+                    or i.startswith('/execution-charset:')
+                    or i == '/validate-charset-'):
+                try:
+                    result.remove('/utf-8')
+                except ValueError:
+                    pass
+            result.append(i)
+        return result
+
+    @classmethod
+    def native_args_to_unix(cls, args: T.List[str]) -> T.List[str]:
+        result = []
+        for arg in args:
+            if arg.startswith(('/LIBPATH:', '-LIBPATH:')):
+                result.append('-L' + arg[9:])
+            elif arg.endswith(('.a', '.lib')) and not os.path.isabs(arg):
+                result.append('-l' + arg)
+            else:
+                result.append(arg)
+        return result
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['/WX']
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if path == '':
+            path = '.'
+        # msvc does not have a concept of system header dirs.
+        return ['-I' + path]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str], build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '/I':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+            elif i[:9] == '/LIBPATH:':
+                parameter_list[idx] = i[:9] + os.path.normpath(os.path.join(build_dir, i[9:]))
+
+        return parameter_list
+
+    # Visual Studio is special. It ignores some arguments it does not
+    # understand and you can't tell it to error out on those.
+    # http://stackoverflow.com/questions/15259720/how-can-i-make-the-microsoft-c-compiler-treat-unknown-flags-as-errors-rather-t
+    def has_arguments(self, args: T.List[str], env: 'Environment', code: str, mode: str) -> T.Tuple[bool, bool]:
+        warning_text = '4044' if mode == 'link' else '9002'
+        with self._build_wrapper(code, env, extra_args=args, mode=mode) as p:
+            if p.returncode != 0:
+                return False, p.cached
+            return not (warning_text in p.stderr or warning_text in p.stdout), p.cached
+
+    def get_compile_debugfile_args(self, rel_obj: str, pch: bool = False) -> T.List[str]:
+        pdbarr = rel_obj.split('.')[:-1]
+        pdbarr += ['pdb']
+        args = ['/Fd' + '.'.join(pdbarr)]
+        return args
+
+    def get_instruction_set_args(self, instruction_set: str) -> T.Optional[T.List[str]]:
+        if self.is_64:
+            return vs64_instruction_set_args.get(instruction_set, None)
+        return vs32_instruction_set_args.get(instruction_set, None)
+
+    def _calculate_toolset_version(self, version: int) -> T.Optional[str]:
+        if version < 1310:
+            return '7.0'
+        elif version < 1400:
+            return '7.1' # (Visual Studio 2003)
+        elif version < 1500:
+            return '8.0' # (Visual Studio 2005)
+        elif version < 1600:
+            return '9.0' # (Visual Studio 2008)
+        elif version < 1700:
+            return '10.0' # (Visual Studio 2010)
+        elif version < 1800:
+            return '11.0' # (Visual Studio 2012)
+        elif version < 1900:
+            return '12.0' # (Visual Studio 2013)
+        elif version < 1910:
+            return '14.0' # (Visual Studio 2015)
+        elif version < 1920:
+            return '14.1' # (Visual Studio 2017)
+        elif version < 1930:
+            return '14.2' # (Visual Studio 2019)
+        elif version < 1940:
+            return '14.3' # (Visual Studio 2022)
+        mlog.warning(f'Could not find toolset for version {self.version!r}')
+        return None
+
+    def get_toolset_version(self) -> T.Optional[str]:
+        # See boost/config/compiler/visualc.cpp for up to date mapping
+        try:
+            version = int(''.join(self.version.split('.')[0:2]))
+        except ValueError:
+            return None
+        return self._calculate_toolset_version(version)
+
+    def get_default_include_dirs(self) -> T.List[str]:
+        if 'INCLUDE' not in os.environ:
+            return []
+        return os.environ['INCLUDE'].split(os.pathsep)
+
+    def get_crt_compile_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        if crt_val in self.crt_args:
+            return self.crt_args[crt_val]
+        assert crt_val in {'from_buildtype', 'static_from_buildtype'}
+        dbg = 'mdd'
+        rel = 'md'
+        if crt_val == 'static_from_buildtype':
+            dbg = 'mtd'
+            rel = 'mt'
+        # Match what build type flags used to do.
+        if buildtype == 'plain':
+            return []
+        elif buildtype == 'debug':
+            return self.crt_args[dbg]
+        elif buildtype == 'debugoptimized':
+            return self.crt_args[rel]
+        elif buildtype == 'release':
+            return self.crt_args[rel]
+        elif buildtype == 'minsize':
+            return self.crt_args[rel]
+        else:
+            assert buildtype == 'custom'
+            raise mesonlib.EnvironmentException('Requested C runtime based on buildtype, but buildtype is "custom".')
+
+    def has_func_attribute(self, name: str, env: 'Environment') -> T.Tuple[bool, bool]:
+        # MSVC doesn't have __attribute__ like Clang and GCC do, so just return
+        # false without compiling anything
+        return name in {'dllimport', 'dllexport'}, False
+
+    def get_argument_syntax(self) -> str:
+        return 'msvc'
+
+    def symbols_have_underscore_prefix(self, env: 'Environment') -> bool:
+        '''
+        Check if the compiler prefixes an underscore to global C symbols.
+
+        This overrides the Clike method, as for MSVC checking the
+        underscore prefix based on the compiler define never works,
+        so do not even try.
+        '''
+        # Try to consult a hardcoded list of cases we know
+        # absolutely have an underscore prefix
+        result = self._symbols_have_underscore_prefix_list(env)
+        if result is not None:
+            return result
+
+        # As a last resort, try search in a compiled binary
+        return self._symbols_have_underscore_prefix_searchbin(env)
+
+
+class MSVCCompiler(VisualStudioLikeCompiler):
+
+    """Specific to the Microsoft Compilers."""
+
+    id = 'msvc'
+
+    def __init__(self, target: str):
+        super().__init__(target)
+
+        # Visual Studio 2013 and erlier don't support the /utf-8 argument.
+        # We want to remove it. We also want to make an explicit copy so we
+        # don't mutate class constant state
+        if mesonlib.version_compare(self.version, '<19.00') and '/utf-8' in self.always_args:
+            self.always_args = [r for r in self.always_args if r != '/utf-8']
+
+    def get_compile_debugfile_args(self, rel_obj: str, pch: bool = False) -> T.List[str]:
+        args = super().get_compile_debugfile_args(rel_obj, pch)
+        # When generating a PDB file with PCH, all compile commands write
+        # to the same PDB file. Hence, we need to serialize the PDB
+        # writes using /FS since we do parallel builds. This slows down the
+        # build obviously, which is why we only do this when PCH is on.
+        # This was added in Visual Studio 2013 (MSVC 18.0). Before that it was
+        # always on: https://msdn.microsoft.com/en-us/library/dn502518.aspx
+        if pch and mesonlib.version_compare(self.version, '>=18.0'):
+            args = ['/FS'] + args
+        return args
+
+    # Override CCompiler.get_always_args
+    # We want to drop '/utf-8' for Visual Studio 2013 and earlier
+    def get_always_args(self) -> T.List[str]:
+        return self.always_args
+
+    def get_instruction_set_args(self, instruction_set: str) -> T.Optional[T.List[str]]:
+        if self.version.split('.')[0] == '16' and instruction_set == 'avx':
+            # VS documentation says that this exists and should work, but
+            # it does not. The headers do not contain AVX intrinsics
+            # and they can not be called.
+            return None
+        return super().get_instruction_set_args(instruction_set)
+
+    def get_pch_base_name(self, header: str) -> str:
+        return os.path.basename(header)
+
+
+class ClangClCompiler(VisualStudioLikeCompiler):
+
+    """Specific to Clang-CL."""
+
+    id = 'clang-cl'
+
+    def __init__(self, target: str):
+        super().__init__(target)
+
+        # Assembly
+        self.can_compile_suffixes.add('s')
+
+    def has_arguments(self, args: T.List[str], env: 'Environment', code: str, mode: str) -> T.Tuple[bool, bool]:
+        if mode != 'link':
+            args = args + ['-Werror=unknown-argument', '-Werror=unknown-warning-option']
+        return super().has_arguments(args, env, code, mode)
+
+    def get_toolset_version(self) -> T.Optional[str]:
+        # XXX: what is the right thing to do here?
+        return '14.1'
+
+    def get_pch_base_name(self, header: str) -> str:
+        return header
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        if path == '':
+            path = '.'
+        return ['/clang:-isystem' + path] if is_system else ['-I' + path]
+
+    def get_dependency_compile_args(self, dep: 'Dependency') -> T.List[str]:
+        if dep.get_include_type() == 'system':
+            converted = []
+            for i in dep.get_compile_args():
+                if i.startswith('-isystem'):
+                    converted += ['/clang:' + i]
+                else:
+                    converted += [i]
+            return converted
+        else:
+            return dep.get_compile_args()
diff --git a/mesonbuild/compilers/mixins/xc16.py b/mesonbuild/compilers/mixins/xc16.py
new file mode 100644
index 0000000..09949a2
--- /dev/null
+++ b/mesonbuild/compilers/mixins/xc16.py
@@ -0,0 +1,132 @@
+# Copyright 2012-2019 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+"""Representations specific to the Microchip XC16 C compiler family."""
+
+import os
+import typing as T
+
+from ...mesonlib import EnvironmentException
+
+if T.TYPE_CHECKING:
+    from ...envconfig import MachineInfo
+    from ...environment import Environment
+    from ...compilers.compilers import Compiler
+else:
+    # This is a bit clever, for mypy we pretend that these mixins descend from
+    # Compiler, so we get all of the methods and attributes defined for us, but
+    # for runtime we make them descend from object (which all classes normally
+    # do). This gives up DRYer type checking, with no runtime impact
+    Compiler = object
+
+xc16_buildtype_args = {
+    'plain': [],
+    'debug': [],
+    'debugoptimized': [],
+    'release': [],
+    'minsize': [],
+    'custom': [],
+}  # type: T.Dict[str, T.List[str]]
+
+xc16_optimization_args = {
+    'plain': [],
+    '0': ['-O0'],
+    'g': ['-O0'],
+    '1': ['-O1'],
+    '2': ['-O2'],
+    '3': ['-O3'],
+    's': ['-Os']
+}  # type: T.Dict[str, T.List[str]]
+
+xc16_debug_args = {
+    False: [],
+    True: []
+}  # type: T.Dict[bool, T.List[str]]
+
+
+class Xc16Compiler(Compiler):
+
+    id = 'xc16'
+
+    def __init__(self) -> None:
+        if not self.is_cross:
+            raise EnvironmentException('xc16 supports only cross-compilation.')
+        # Assembly
+        self.can_compile_suffixes.add('s')
+        default_warn_args = []  # type: T.List[str]
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + [],
+                          '3': default_warn_args + [],
+                          'everything': default_warn_args + []}  # type: T.Dict[str, T.List[str]]
+
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+    def get_pic_args(self) -> T.List[str]:
+        # PIC support is not enabled by default for xc16,
+        # if users want to use it, they need to add the required arguments explicitly
+        return []
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return xc16_buildtype_args[buildtype]
+
+    def get_pch_suffix(self) -> str:
+        return 'pch'
+
+    def get_pch_use_args(self, pch_dir: str, header: str) -> T.List[str]:
+        return []
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def get_coverage_args(self) -> T.List[str]:
+        return []
+
+    def get_no_stdinc_args(self) -> T.List[str]:
+        return ['-nostdinc']
+
+    def get_no_stdlib_link_args(self) -> T.List[str]:
+        return ['--nostdlib']
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return xc16_optimization_args[optimization_level]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return xc16_debug_args[is_debug]
+
+    @classmethod
+    def _unix_args_to_native(cls, args: T.List[str], info: MachineInfo) -> T.List[str]:
+        result = []
+        for i in args:
+            if i.startswith('-D'):
+                i = '-D' + i[2:]
+            if i.startswith('-I'):
+                i = '-I' + i[2:]
+            if i.startswith('-Wl,-rpath='):
+                continue
+            elif i == '--print-search-dirs':
+                continue
+            elif i.startswith('-L'):
+                continue
+            result.append(i)
+        return result
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str], build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:9] == '-I':
+                parameter_list[idx] = i[:9] + os.path.normpath(os.path.join(build_dir, i[9:]))
+
+        return parameter_list
diff --git a/mesonbuild/compilers/objc.py b/mesonbuild/compilers/objc.py
new file mode 100644
index 0000000..83dcaad
--- /dev/null
+++ b/mesonbuild/compilers/objc.py
@@ -0,0 +1,114 @@
+# Copyright 2012-2017 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import typing as T
+
+from .. import coredata
+from ..mesonlib import OptionKey
+
+from .compilers import Compiler
+from .mixins.clike import CLikeCompiler
+from .mixins.gnu import GnuCompiler, gnu_common_warning_args, gnu_objc_warning_args
+from .mixins.clang import ClangCompiler
+
+if T.TYPE_CHECKING:
+    from ..programs import ExternalProgram
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..linkers import DynamicLinker
+    from ..mesonlib import MachineChoice
+
+
+class ObjCCompiler(CLikeCompiler, Compiler):
+
+    language = 'objc'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrap: T.Optional['ExternalProgram'],
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        Compiler.__init__(self, ccache, exelist, version, for_machine, info,
+                          is_cross=is_cross, full_version=full_version,
+                          linker=linker)
+        CLikeCompiler.__init__(self, exe_wrap)
+
+    @staticmethod
+    def get_display_language() -> str:
+        return 'Objective-C'
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        code = '#import<stddef.h>\nint main(void) { return 0; }\n'
+        return self._sanity_check_impl(work_dir, environment, 'sanitycheckobjc.m', code)
+
+
+class GnuObjCCompiler(GnuCompiler, ObjCCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        ObjCCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                              info, exe_wrapper, linker=linker, full_version=full_version)
+        GnuCompiler.__init__(self, defines)
+        default_warn_args = ['-Wall', '-Winvalid-pch']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+                          'everything': (default_warn_args + ['-Wextra', '-Wpedantic'] +
+                                         self.supported_warn_args(gnu_common_warning_args) +
+                                         self.supported_warn_args(gnu_objc_warning_args))}
+
+
+class ClangObjCCompiler(ClangCompiler, ObjCCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        ObjCCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                              info, exe_wrapper, linker=linker, full_version=full_version)
+        ClangCompiler.__init__(self, defines)
+        default_warn_args = ['-Wall', '-Winvalid-pch']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+                          'everything': ['-Weverything']}
+
+    def get_options(self) -> 'coredata.MutableKeyedOptionDictType':
+        opts = super().get_options()
+        opts.update({
+            OptionKey('std', machine=self.for_machine, lang='c'): coredata.UserComboOption(
+                'C language standard to use',
+                ['none', 'c89', 'c99', 'c11', 'c17', 'gnu89', 'gnu99', 'gnu11', 'gnu17'],
+                'none',
+            )
+        })
+        return opts
+
+    def get_option_compile_args(self, options: 'coredata.KeyedOptionDictType') -> T.List[str]:
+        args = []
+        std = options[OptionKey('std', machine=self.for_machine, lang='c')]
+        if std.value != 'none':
+            args.append('-std=' + std.value)
+        return args
+
+class AppleClangObjCCompiler(ClangObjCCompiler):
+
+    """Handle the differences between Apple's clang and vanilla clang."""
diff --git a/mesonbuild/compilers/objcpp.py b/mesonbuild/compilers/objcpp.py
new file mode 100644
index 0000000..1f9f756
--- /dev/null
+++ b/mesonbuild/compilers/objcpp.py
@@ -0,0 +1,115 @@
+# Copyright 2012-2017 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import typing as T
+
+from .. import coredata
+from ..mesonlib import OptionKey
+
+from .mixins.clike import CLikeCompiler
+from .compilers import Compiler
+from .mixins.gnu import GnuCompiler, gnu_common_warning_args, gnu_objc_warning_args
+from .mixins.clang import ClangCompiler
+
+if T.TYPE_CHECKING:
+    from ..programs import ExternalProgram
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..linkers import DynamicLinker
+    from ..mesonlib import MachineChoice
+
+class ObjCPPCompiler(CLikeCompiler, Compiler):
+
+    language = 'objcpp'
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrap: T.Optional['ExternalProgram'],
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        Compiler.__init__(self, ccache, exelist, version, for_machine, info,
+                          is_cross=is_cross, full_version=full_version,
+                          linker=linker)
+        CLikeCompiler.__init__(self, exe_wrap)
+
+    @staticmethod
+    def get_display_language() -> str:
+        return 'Objective-C++'
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        code = '#import<stdio.h>\nclass MyClass;int main(void) { return 0; }\n'
+        return self._sanity_check_impl(work_dir, environment, 'sanitycheckobjcpp.mm', code)
+
+
+class GnuObjCPPCompiler(GnuCompiler, ObjCPPCompiler):
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        ObjCPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                                info, exe_wrapper, linker=linker, full_version=full_version)
+        GnuCompiler.__init__(self, defines)
+        default_warn_args = ['-Wall', '-Winvalid-pch']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+                          'everything': (default_warn_args + ['-Wextra', '-Wpedantic'] +
+                                         self.supported_warn_args(gnu_common_warning_args) +
+                                         self.supported_warn_args(gnu_objc_warning_args))}
+
+
+class ClangObjCPPCompiler(ClangCompiler, ObjCPPCompiler):
+
+    def __init__(self, ccache: T.List[str], exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        ObjCPPCompiler.__init__(self, ccache, exelist, version, for_machine, is_cross,
+                                info, exe_wrapper, linker=linker, full_version=full_version)
+        ClangCompiler.__init__(self, defines)
+        default_warn_args = ['-Wall', '-Winvalid-pch']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+                          'everything': ['-Weverything']}
+
+    def get_options(self) -> 'coredata.MutableKeyedOptionDictType':
+        opts = super().get_options()
+        opts.update({
+            OptionKey('std', machine=self.for_machine, lang='cpp'): coredata.UserComboOption(
+                'C++ language standard to use',
+                ['none', 'c++98', 'c++11', 'c++14', 'c++17', 'gnu++98', 'gnu++11', 'gnu++14', 'gnu++17'],
+                'none',
+            )
+        })
+        return opts
+
+    def get_option_compile_args(self, options: 'coredata.KeyedOptionDictType') -> T.List[str]:
+        args = []
+        std = options[OptionKey('std', machine=self.for_machine, lang='cpp')]
+        if std.value != 'none':
+            args.append('-std=' + std.value)
+        return args
+
+
+class AppleClangObjCPPCompiler(ClangObjCPPCompiler):
+
+    """Handle the differences between Apple's clang and vanilla clang."""
diff --git a/mesonbuild/compilers/rust.py b/mesonbuild/compilers/rust.py
new file mode 100644
index 0000000..9e5ebc8
--- /dev/null
+++ b/mesonbuild/compilers/rust.py
@@ -0,0 +1,208 @@
+# Copyright 2012-2022 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import subprocess, os.path
+import textwrap
+import typing as T
+
+from .. import coredata
+from ..mesonlib import EnvironmentException, MesonException, Popen_safe, OptionKey
+from .compilers import Compiler, rust_buildtype_args, clike_debug_args
+
+if T.TYPE_CHECKING:
+    from ..coredata import MutableKeyedOptionDictType, KeyedOptionDictType
+    from ..envconfig import MachineInfo
+    from ..environment import Environment  # noqa: F401
+    from ..linkers import DynamicLinker
+    from ..mesonlib import MachineChoice
+    from ..programs import ExternalProgram
+
+
+rust_optimization_args = {
+    'plain': [],
+    '0': [],
+    'g': ['-C', 'opt-level=0'],
+    '1': ['-C', 'opt-level=1'],
+    '2': ['-C', 'opt-level=2'],
+    '3': ['-C', 'opt-level=3'],
+    's': ['-C', 'opt-level=s'],
+}  # type: T.Dict[str, T.List[str]]
+
+class RustCompiler(Compiler):
+
+    # rustc doesn't invoke the compiler itself, it doesn't need a LINKER_PREFIX
+    language = 'rust'
+    id = 'rustc'
+
+    _WARNING_LEVELS: T.Dict[str, T.List[str]] = {
+        '0': ['-A', 'warnings'],
+        '1': [],
+        '2': [],
+        '3': ['-W', 'warnings'],
+    }
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 full_version: T.Optional[str] = None,
+                 linker: T.Optional['DynamicLinker'] = None):
+        super().__init__([], exelist, version, for_machine, info,
+                         is_cross=is_cross, full_version=full_version,
+                         linker=linker)
+        self.exe_wrapper = exe_wrapper
+        self.base_options.add(OptionKey('b_colorout'))
+        if 'link' in self.linker.id:
+            self.base_options.add(OptionKey('b_vscrt'))
+
+    def needs_static_linker(self) -> bool:
+        return False
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        source_name = os.path.join(work_dir, 'sanity.rs')
+        output_name = os.path.join(work_dir, 'rusttest')
+        with open(source_name, 'w', encoding='utf-8') as ofile:
+            ofile.write(textwrap.dedent(
+                '''fn main() {
+                }
+                '''))
+        pc = subprocess.Popen(self.exelist + ['-o', output_name, source_name],
+                              stdout=subprocess.PIPE,
+                              stderr=subprocess.PIPE,
+                              cwd=work_dir)
+        _stdo, _stde = pc.communicate()
+        assert isinstance(_stdo, bytes)
+        assert isinstance(_stde, bytes)
+        stdo = _stdo.decode('utf-8', errors='replace')
+        stde = _stde.decode('utf-8', errors='replace')
+        if pc.returncode != 0:
+            raise EnvironmentException('Rust compiler {} can not compile programs.\n{}\n{}'.format(
+                self.name_string(),
+                stdo,
+                stde))
+        if self.is_cross:
+            if self.exe_wrapper is None:
+                # Can't check if the binaries run so we have to assume they do
+                return
+            cmdlist = self.exe_wrapper.get_command() + [output_name]
+        else:
+            cmdlist = [output_name]
+        pe = subprocess.Popen(cmdlist, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+        pe.wait()
+        if pe.returncode != 0:
+            raise EnvironmentException('Executables created by Rust compiler %s are not runnable.' % self.name_string())
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['--dep-info', outfile]
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return rust_buildtype_args[buildtype]
+
+    def get_sysroot(self) -> str:
+        cmd = self.get_exelist(ccache=False) + ['--print', 'sysroot']
+        p, stdo, stde = Popen_safe(cmd)
+        return stdo.split('\n', maxsplit=1)[0]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return clike_debug_args[is_debug]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return rust_optimization_args[optimization_level]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-L':
+                for j in ['dependency', 'crate', 'native', 'framework', 'all']:
+                    combined_len = len(j) + 3
+                    if i[:combined_len] == f'-L{j}=':
+                        parameter_list[idx] = i[:combined_len] + os.path.normpath(os.path.join(build_dir, i[combined_len:]))
+                        break
+
+        return parameter_list
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return ['-o', outputname]
+
+    @classmethod
+    def use_linker_args(cls, linker: str, version: str) -> T.List[str]:
+        return ['-C', f'linker={linker}']
+
+    # Rust does not have a use_linker_args because it dispatches to a gcc-like
+    # C compiler for dynamic linking, as such we invoke the C compiler's
+    # use_linker_args method instead.
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        return {
+            key: coredata.UserComboOption(
+                'Rust edition to use',
+                ['none', '2015', '2018', '2021'],
+                'none',
+            ),
+        }
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            args.append('--edition=' + std.value)
+        return args
+
+    def get_crt_compile_args(self, crt_val: str, buildtype: str) -> T.List[str]:
+        # Rust handles this for us, we don't need to do anything
+        return []
+
+    def get_colorout_args(self, colortype: str) -> T.List[str]:
+        if colortype in {'always', 'never', 'auto'}:
+            return [f'--color={colortype}']
+        raise MesonException(f'Invalid color type for rust {colortype}')
+
+    def get_linker_always_args(self) -> T.List[str]:
+        args: T.List[str] = []
+        for a in super().get_linker_always_args():
+            args.extend(['-C', f'link-arg={a}'])
+        return args
+
+    def get_werror_args(self) -> T.List[str]:
+        # Use -D warnings, which makes every warning not explicitly allowed an
+        # error
+        return ['-D', 'warnings']
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        # TODO: I'm not really sure what to put here, Rustc doesn't have warning
+        return self._WARNING_LEVELS[level]
+
+    def get_no_warn_args(self) -> T.List[str]:
+        return self._WARNING_LEVELS["0"]
+
+    def get_pic_args(self) -> T.List[str]:
+        # This defaults to
+        return ['-C', 'relocation-model=pic']
+
+    def get_pie_args(self) -> T.List[str]:
+        # Rustc currently has no way to toggle this, it's controlled by whether
+        # pic is on by rustc
+        return []
+
+
+class ClippyRustCompiler(RustCompiler):
+
+    """Clippy is a linter that wraps Rustc.
+
+    This just provides us a different id
+    """
+
+    id = 'clippy-driver rustc'
diff --git a/mesonbuild/compilers/swift.py b/mesonbuild/compilers/swift.py
new file mode 100644
index 0000000..ec4c7a3
--- /dev/null
+++ b/mesonbuild/compilers/swift.py
@@ -0,0 +1,130 @@
+# Copyright 2012-2017 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import subprocess, os.path
+import typing as T
+
+from ..mesonlib import EnvironmentException
+
+from .compilers import Compiler, swift_buildtype_args, clike_debug_args
+
+if T.TYPE_CHECKING:
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..linkers import DynamicLinker
+    from ..mesonlib import MachineChoice
+
+swift_optimization_args = {
+    'plain': [],
+    '0': [],
+    'g': [],
+    '1': ['-O'],
+    '2': ['-O'],
+    '3': ['-O'],
+    's': ['-O'],
+}  # type: T.Dict[str, T.List[str]]
+
+class SwiftCompiler(Compiler):
+
+    LINKER_PREFIX = ['-Xlinker']
+    language = 'swift'
+    id = 'llvm'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo', full_version: T.Optional[str] = None,
+                 linker: T.Optional['DynamicLinker'] = None):
+        super().__init__([], exelist, version, for_machine, info,
+                         is_cross=is_cross, full_version=full_version,
+                         linker=linker)
+        self.version = version
+
+    def needs_static_linker(self) -> bool:
+        return True
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['--fatal-warnings']
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['-emit-dependencies']
+
+    def depfile_for_object(self, objfile: str) -> T.Optional[str]:
+        return os.path.splitext(objfile)[0] + '.' + self.get_depfile_suffix()
+
+    def get_depfile_suffix(self) -> str:
+        return 'd'
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return ['-o', target]
+
+    def get_header_import_args(self, headername: str) -> T.List[str]:
+        return ['-import-objc-header', headername]
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        return []
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return swift_buildtype_args[buildtype]
+
+    def get_std_exe_link_args(self) -> T.List[str]:
+        return ['-emit-executable']
+
+    def get_module_args(self, modname: str) -> T.List[str]:
+        return ['-module-name', modname]
+
+    def get_mod_gen_args(self) -> T.List[str]:
+        return ['-emit-module']
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        return ['-I' + path]
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return ['-c']
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '-L':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+
+        return parameter_list
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        src = 'swifttest.swift'
+        source_name = os.path.join(work_dir, src)
+        output_name = os.path.join(work_dir, 'swifttest')
+        extra_flags: T.List[str] = []
+        extra_flags += environment.coredata.get_external_args(self.for_machine, self.language)
+        if self.is_cross:
+            extra_flags += self.get_compile_only_args()
+        else:
+            extra_flags += environment.coredata.get_external_link_args(self.for_machine, self.language)
+        with open(source_name, 'w', encoding='utf-8') as ofile:
+            ofile.write('''print("Swift compilation is working.")
+''')
+        pc = subprocess.Popen(self.exelist + extra_flags + ['-emit-executable', '-o', output_name, src], cwd=work_dir)
+        pc.wait()
+        if pc.returncode != 0:
+            raise EnvironmentException('Swift compiler %s can not compile programs.' % self.name_string())
+        if self.is_cross:
+            # Can't check if the binaries run so we have to assume they do
+            return
+        if subprocess.call(output_name) != 0:
+            raise EnvironmentException('Executables created by Swift compiler %s are not runnable.' % self.name_string())
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return clike_debug_args[is_debug]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return swift_optimization_args[optimization_level]
diff --git a/mesonbuild/compilers/vala.py b/mesonbuild/compilers/vala.py
new file mode 100644
index 0000000..e56a9fc
--- /dev/null
+++ b/mesonbuild/compilers/vala.py
@@ -0,0 +1,140 @@
+# Copyright 2012-2017 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import annotations
+
+import os.path
+import typing as T
+
+from .. import mlog
+from ..mesonlib import EnvironmentException, version_compare, OptionKey
+
+from .compilers import Compiler, LibType
+
+if T.TYPE_CHECKING:
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..mesonlib import MachineChoice
+
+class ValaCompiler(Compiler):
+
+    language = 'vala'
+    id = 'valac'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo'):
+        super().__init__([], exelist, version, for_machine, info, is_cross=is_cross)
+        self.version = version
+        self.base_options = {OptionKey('b_colorout')}
+
+    def needs_static_linker(self) -> bool:
+        return False # Because compiles into C.
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return []
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return ['--debug'] if is_debug else []
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [] # Because compiles into C.
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return [] # Because compiles into C.
+
+    def get_pic_args(self) -> T.List[str]:
+        return []
+
+    def get_pie_args(self) -> T.List[str]:
+        return []
+
+    def get_pie_link_args(self) -> T.List[str]:
+        return []
+
+    def get_always_args(self) -> T.List[str]:
+        return ['-C']
+
+    def get_warn_args(self, warning_level: str) -> T.List[str]:
+        return []
+
+    def get_no_warn_args(self) -> T.List[str]:
+        return ['--disable-warnings']
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['--fatal-warnings']
+
+    def get_colorout_args(self, colortype: str) -> T.List[str]:
+        if version_compare(self.version, '>=0.37.1'):
+            return ['--color=' + colortype]
+        return []
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:9] == '--girdir=':
+                parameter_list[idx] = i[:9] + os.path.normpath(os.path.join(build_dir, i[9:]))
+            if i[:10] == '--vapidir=':
+                parameter_list[idx] = i[:10] + os.path.normpath(os.path.join(build_dir, i[10:]))
+            if i[:13] == '--includedir=':
+                parameter_list[idx] = i[:13] + os.path.normpath(os.path.join(build_dir, i[13:]))
+            if i[:14] == '--metadatadir=':
+                parameter_list[idx] = i[:14] + os.path.normpath(os.path.join(build_dir, i[14:]))
+
+        return parameter_list
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        code = 'class MesonSanityCheck : Object { }'
+        extra_flags: T.List[str] = []
+        extra_flags += environment.coredata.get_external_args(self.for_machine, self.language)
+        if self.is_cross:
+            extra_flags += self.get_compile_only_args()
+        else:
+            extra_flags += environment.coredata.get_external_link_args(self.for_machine, self.language)
+        with self.cached_compile(code, environment.coredata, extra_args=extra_flags, mode='compile') as p:
+            if p.returncode != 0:
+                msg = f'Vala compiler {self.name_string()!r} can not compile programs'
+                raise EnvironmentException(msg)
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        if buildtype in {'debug', 'debugoptimized', 'minsize'}:
+            return ['--debug']
+        return []
+
+    def find_library(self, libname: str, env: 'Environment', extra_dirs: T.List[str],
+                     libtype: LibType = LibType.PREFER_SHARED) -> T.Optional[T.List[str]]:
+        if extra_dirs and isinstance(extra_dirs, str):
+            extra_dirs = [extra_dirs]
+        # Valac always looks in the default vapi dir, so only search there if
+        # no extra dirs are specified.
+        if not extra_dirs:
+            code = 'class MesonFindLibrary : Object { }'
+            args: T.List[str] = []
+            args += env.coredata.get_external_args(self.for_machine, self.language)
+            vapi_args = ['--pkg', libname]
+            args += vapi_args
+            with self.cached_compile(code, env.coredata, extra_args=args, mode='compile') as p:
+                if p.returncode == 0:
+                    return vapi_args
+        # Not found? Try to find the vapi file itself.
+        for d in extra_dirs:
+            vapi = os.path.join(d, libname + '.vapi')
+            if os.path.isfile(vapi):
+                return [vapi]
+        mlog.debug(f'Searched {extra_dirs!r} and {libname!r} wasn\'t found')
+        return None
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def thread_link_flags(self, env: 'Environment') -> T.List[str]:
+        return []