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+# Copyright © 2017 Dylan Baker
+#
+# 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.
+
+project('C and C++ static link test', ['c', 'cpp'])
+
+if meson.backend() == 'xcode'
+ error('''MESON_SKIP_TEST: overriding link language is not supported in Xcode.
+
+If you really need this, then patches are welcome. The only known way is
+to create a dummy C++ file in the meson-private directory and adding
+that to the target's source list when needed. The primitives exist
+but may need some tweaking. Grep for language_stdlib_only_link_flags to find
+where this is handled in other backends.''')
+endif
+
+# Verify that adding link arguments works.
+add_global_link_arguments('', language : 'c')
+add_project_link_arguments('', language : 'c')
+
+libc = static_library('cfoo', ['foo.c', 'foo.h'])
+
+# Test that linking C libs to external static C++ libs uses the C++ linker
+# Since we can't depend on the test system to provide this, we create one
+# ourselves at configure time and then 'find' it with cxx.find_library().
+cxx = meson.get_compiler('cpp')
+
+if cxx.get_argument_syntax() == 'msvc'
+ if cxx.get_id() == 'msvc'
+ static_linker = find_program('lib')
+ elif cxx.get_id() == 'clang-cl'
+ static_linker = find_program('llvm-lib')
+ elif cxx.get_id() == 'intel-cl'
+ static_linker = find_program('xilib')
+ else
+ error('unable to determine static linker to use with this compiler')
+ endif
+ compile_cmd = ['/c', '@INPUT@', '/Fo@OUTPUT@']
+ stlib_cmd = [static_linker, '/OUT:@OUTPUT@', '@INPUT@']
+else
+ picflag = []
+ if not ['darwin', 'windows'].contains(host_machine.system())
+ picflag = ['-fPIC']
+ endif
+ compile_cmd = ['-c', picflag, '@INPUT@', '-o', '@OUTPUT@']
+ stlib_cmd = ['ar', 'csr', '@OUTPUT@', '@INPUT@']
+endif
+
+foo_cpp_o = configure_file(
+ input : 'foo.cpp',
+ output : 'foo.cpp.o',
+ command : cxx.cmd_array() + compile_cmd)
+
+configure_file(
+ input : foo_cpp_o,
+ output : 'libstcppext.a',
+ command : stlib_cmd)
+
+libstcppext = cxx.find_library('stcppext', dirs : meson.current_build_dir())
+lib_type_name = libstcppext.type_name()
+assert(lib_type_name == 'library', 'type name is ' + lib_type_name)
+
+libfooext = shared_library(
+ 'fooext',
+ ['foobar.c', 'foobar.h'],
+ link_with : libc,
+ dependencies : libstcppext,
+)
+
+# Test that linking C libs to internal static C++ libs uses the C++ linker
+libcpp = static_library('cppfoo', ['foo.cpp', 'foo.hpp'])
+
+libfoo = shared_library(
+ 'foo',
+ ['foobar.c', 'foobar.h'],
+ link_with : [libc, libcpp],
+)
+
+# Test that link_whole is also honored
+#
+# VS2010 lacks the /WHOLEARCHIVE option that later versions of MSVC support, so
+# don't run this tests on that backend.
+if not (cxx.get_id() == 'msvc' and cxx.version().version_compare('<19'))
+ libfoowhole = shared_library(
+ 'foowhole',
+ ['foobar.c', 'foobar.h'],
+ link_whole : [libc, libcpp],
+ )
+endif
+
+# Test sublinking (linking C and C++, then linking that to C)
+libfoo_static = static_library(
+ 'foo_static',
+ ['foobar.c', 'foobar.h'],
+ link_with : [libc, libcpp],
+)
+
+libsub = shared_library(
+ 'sub',
+ ['sub.c', 'sub.h'],
+ link_with : libfoo_static,
+)
+
+if not (cxx.get_id() == 'msvc' and cxx.version().version_compare('<19'))
+ libsubwhole = shared_library(
+ 'subwhole',
+ ['sub.c', 'sub.h'],
+ link_whole : libfoo_static,
+ )
+endif
+
+# Test that it really is recursive
+libsub_static = static_library(
+ 'sub_static',
+ ['sub.c', 'sub.h'],
+ link_with : libfoo_static,
+)
+
+libsubsub = shared_library(
+ 'subsub',
+ ['dummy.c'],
+ link_with : libsub_static,
+)