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-rw-r--r--build/moz.configure/pkg.configure208
1 files changed, 208 insertions, 0 deletions
diff --git a/build/moz.configure/pkg.configure b/build/moz.configure/pkg.configure
new file mode 100644
index 0000000000..6b460ae174
--- /dev/null
+++ b/build/moz.configure/pkg.configure
@@ -0,0 +1,208 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+@depends(toolchain_prefix, when=compile_environment)
+def pkg_config(prefixes):
+ return tuple("{}pkg-config".format(p) for p in (prefixes or ()) + ("",))
+
+
+pkg_config = check_prog(
+ "PKG_CONFIG",
+ pkg_config,
+ bootstrap=depends(when=target_sysroot.bootstrapped)(lambda: "pkgconf"),
+ allow_missing=True,
+ when=compile_environment
+ & depends(target.os)(lambda os: os not in ("WINNT", "OSX", "Android")),
+)
+
+
+@depends_if(pkg_config)
+@checking("for pkg-config version")
+def pkg_config_version(pkg_config):
+ return Version(check_cmd_output(pkg_config, "--version").rstrip())
+
+
+@depends_if(pkg_config)
+@checking("whether pkg-config is pkgconf")
+def is_pkgconf(pkg_config):
+ return "pkgconf " in check_cmd_output(pkg_config, "--about", onerror=lambda: "")
+
+
+@depends(is_pkgconf, pkg_config_version, target_sysroot.bootstrapped, when=pkg_config)
+def pkg_config_base_flags(is_pkgconf, pkg_config_version, target_sysroot_bootstrapped):
+ # pkgconf 1.7.4 changed the default on Windows to use --static, but
+ # that doesn't work for us.
+ # Note: the --shared flag is not available before pkgconf 1.7
+ flags = []
+ if is_pkgconf and pkg_config_version >= "1.7.4":
+ flags.append("--shared")
+ # When pkg-config is in /usr things work fine by default, but when
+ # it is not, it defines prefix to be something else than /usr, which
+ # won't match what the .pc files actually say, and won't work in
+ # sysroots.
+ if target_sysroot_bootstrapped and (
+ (is_pkgconf and pkg_config_version >= "1.2.0")
+ or (not is_pkgconf and pkg_config_version >= "0.29.0")
+ ):
+ flags.append("--dont-define-prefix")
+ return tuple(flags)
+
+
+@depends(target, target_sysroot.path, target_multiarch_dir, when=pkg_config)
+@imports(_from="os", _import="environ")
+@imports(_from="os", _import="pathsep")
+def pkg_config_vars(target, sysroot_path, multiarch_dir):
+ if sysroot_path and target.kernel != "Darwin":
+ return namespace(
+ PKG_CONFIG_PATH="",
+ PKG_CONFIG_SYSROOT_DIR=sysroot_path,
+ PKG_CONFIG_LIBDIR=pathsep.join(
+ os.path.join(sysroot_path, d)
+ for d in (
+ "usr/lib/pkgconfig",
+ "usr/lib/{}/pkgconfig".format(multiarch_dir),
+ "usr/share/pkgconfig",
+ )
+ ),
+ )
+
+
+@depends(pkg_config_vars)
+@imports(_from="os", _import="environ")
+def pkg_config_env(vars):
+ if vars:
+ env = dict(environ)
+ env["PKG_CONFIG_PATH"] = vars.PKG_CONFIG_PATH
+ env["PKG_CONFIG_SYSROOT_DIR"] = vars.PKG_CONFIG_SYSROOT_DIR
+ env["PKG_CONFIG_LIBDIR"] = vars.PKG_CONFIG_LIBDIR
+ return env
+
+
+set_config("PKG_CONFIG_PATH", pkg_config_vars.PKG_CONFIG_PATH)
+set_config("PKG_CONFIG_SYSROOT_DIR", pkg_config_vars.PKG_CONFIG_SYSROOT_DIR)
+set_config("PKG_CONFIG_LIBDIR", pkg_config_vars.PKG_CONFIG_LIBDIR)
+
+
+# Locates the given module using pkg-config.
+# - `var` determines the name of variables to set when the package is found.
+# <var>_CFLAGS and <var>_LIBS are set with corresponding values.
+# - `package_desc` package name and version requirement string, list of
+# strings describing packages to locate, or depends function that will
+# resolve to such a string or list of strings.
+# - `when` a depends function that will determine whether to perform
+# any checks (default is to always perform checks).
+# - `allow_missing` If set, failure to fulfill the package description
+# will not result in an error or logged message, and any error message
+# will be returned to the caller.
+# Returns `True` when the package description is fulfilled.
+@template
+def pkg_check_modules(
+ var, package_desc, when=always, allow_missing=False, config=True, cflags_only=False
+):
+ @depends(dependable(package_desc), when=when)
+ def package_desc(desc):
+ if isinstance(desc, str):
+ desc = [desc]
+ if not isinstance(desc, (tuple, list)):
+ configure_error(
+ "package_desc must be a string or a tuple or list of strings"
+ )
+
+ return " ".join(desc)
+
+ allow_missing = dependable(allow_missing)
+
+ @depends(when, "--enable-compile-environment")
+ def when_and_compile_environment(when, compile_environment):
+ return when and compile_environment
+
+ @depends(pkg_config, pkg_config_version, when=when_and_compile_environment)
+ def check_pkg_config(pkg_config, version):
+ min_version = "0.9.0"
+ if pkg_config is None:
+ die(
+ "*** The pkg-config script could not be found. Make sure it is\n"
+ "*** in your path, or set the PKG_CONFIG environment variable\n"
+ "*** to the full path to pkg-config."
+ )
+ if version < min_version:
+ die(
+ "*** Your version of pkg-config is too old. You need version %s or newer.",
+ min_version,
+ )
+
+ @depends(
+ pkg_config,
+ pkg_config_env,
+ package_desc,
+ allow_missing,
+ when=when_and_compile_environment,
+ )
+ @imports("sys")
+ @imports(_from="mozbuild.configure.util", _import="LineIO")
+ def package(pkg_config, env, package_desc, allow_missing):
+ # package_desc may start as a depends function, so we can't use
+ # @checking here.
+ log.info("checking for %s... " % package_desc)
+ retcode, stdout, stderr = get_cmd_output(
+ pkg_config,
+ "--errors-to-stdout",
+ "--print-errors",
+ package_desc,
+ env=env,
+ )
+ if retcode == 0:
+ log.info("yes")
+ return True
+ log.info("no")
+ log_writer = log.warning if allow_missing else log.error
+ with LineIO(lambda l: log_writer(l)) as o:
+ o.write(stdout)
+ if not allow_missing:
+ sys.exit(1)
+
+ @depends(
+ pkg_config, pkg_config_env, package_desc, pkg_config_base_flags, when=package
+ )
+ @checking("%s_CFLAGS" % var, callback=lambda t: " ".join(t))
+ def pkg_cflags(pkg_config, env, package_desc, base_flags):
+ args = list(base_flags) + ["--cflags", package_desc]
+ flags = check_cmd_output(pkg_config, *args, env=env)
+ return tuple(flags.split())
+
+ if cflags_only:
+
+ @depends(pkg_cflags, when=package)
+ def pkg_info(cflags):
+ return namespace(cflags=cflags)
+
+ else:
+
+ @depends(
+ pkg_config,
+ pkg_config_env,
+ package_desc,
+ pkg_config_base_flags,
+ when=package,
+ )
+ @checking("%s_LIBS" % var, callback=lambda t: " ".join(t))
+ def pkg_libs(pkg_config, env, package_desc, base_flags):
+ args = list(base_flags) + ["--libs", package_desc]
+ libs = check_cmd_output(pkg_config, *args, env=env)
+ # Remove evil flags like -Wl,--export-dynamic
+ return tuple(libs.replace("-Wl,--export-dynamic", "").split())
+
+ @depends(pkg_cflags, pkg_libs, when=package)
+ def pkg_info(cflags, libs):
+ return namespace(cflags=cflags, libs=libs)
+
+ if config:
+ set_config("%s_CFLAGS" % var, pkg_cflags)
+ if not cflags_only:
+ set_config("%s_LIBS" % var, pkg_libs)
+
+ return pkg_info