# -*- 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('--enable-compile-environment') def pkg_config(compile_env): if compile_env: return ('pkg-config',) pkg_config = check_prog('PKG_CONFIG', pkg_config, allow_missing=True) @depends_if(pkg_config) @checking('for pkg-config version') @imports('subprocess') def pkg_config_version(pkg_config): return Version(check_cmd_output(pkg_config, '--version').rstrip()) # 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): if isinstance(package_desc, (tuple, list)): package_desc = ' '.join(package_desc) package_desc = dependable(package_desc) @depends(when, '--enable-compile-environment') def when_and_compile_environment(when, compile_environment): return when and compile_environment @depends_when(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_when(pkg_config, package_desc, when=when_and_compile_environment) @imports('subprocess') @imports('sys') @imports(_from='mozbuild.configure.util', _import='LineIO') def package(pkg_config, package_desc): # package_desc may start as a depends function, so we can't use # @checking here. log.info("checking for %s... " % package_desc) with log.queue_debug(): try: subprocess.check_output([pkg_config, '--errors-to-stdout', '--print-errors', package_desc]) log.info("yes") return True except subprocess.CalledProcessError as e: log.info("no") log_writer = log.warning if allow_missing else log.error with LineIO(lambda l: log_writer(l)) as o: o.write(e.output) if not allow_missing: sys.exit(1) @depends_when(pkg_config, package_desc, when=package) @checking('%s_CFLAGS' % var, callback=lambda t: ' '.join(t)) def pkg_cflags(pkg_config, package_desc): flags = check_cmd_output(pkg_config, '--cflags', package_desc) return tuple(flags.split()) @depends_when(pkg_config, package_desc, when=package) @checking('%s_LIBS' % var, callback=lambda t: ' '.join(t)) def pkg_libs(pkg_config, package_desc): libs = check_cmd_output(pkg_config, '--libs', package_desc) # Remove evil flags like -Wl,--export-dynamic return tuple(libs.replace('-Wl,--export-dynamic', '').split()) @depends_when(pkg_cflags, pkg_libs, when=package) def pkg_info(cflags, libs): return namespace(cflags=cflags, libs=libs) set_config('%s_CFLAGS' % var, pkg_cflags) set_config('%s_LIBS' % var, pkg_libs) return pkg_info