97 lines
4.1 KiB
Plaintext
97 lines
4.1 KiB
Plaintext
# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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@depends('--enable-compile-environment')
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def pkg_config(compile_env):
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if compile_env:
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return ('pkg-config',)
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pkg_config = check_prog('PKG_CONFIG', pkg_config, allow_missing=True)
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@depends_if(pkg_config)
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@checking('for pkg-config version')
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@imports('subprocess')
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def pkg_config_version(pkg_config):
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return Version(check_cmd_output(pkg_config, '--version').rstrip())
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# Locates the given module using pkg-config.
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# - `var` determines the name of variables to set when the package is found.
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# <var>_CFLAGS and <var>_LIBS are set with corresponding values.
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# - `package_desc` package name and version requirement string, list of
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# strings describing packages to locate, or depends function that will
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# resolve to such a string or list of strings.
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# - `when` a depends function that will determine whether to perform
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# any checks (default is to always perform checks).
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# - `allow_missing` If set, failure to fulfill the package description
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# will not result in an error or logged message, and any error message
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# will be returned to the caller.
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# Returns `True` when the package description is fulfilled.
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@template
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def pkg_check_modules(var, package_desc, when=always,
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allow_missing=False):
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if isinstance(package_desc, (tuple, list)):
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package_desc = ' '.join(package_desc)
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package_desc = dependable(package_desc)
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@depends(when, '--enable-compile-environment')
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def when_and_compile_environment(when, compile_environment):
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return when and compile_environment
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@depends_when(pkg_config, pkg_config_version,
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when=when_and_compile_environment)
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def check_pkg_config(pkg_config, version):
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min_version = '0.9.0'
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if pkg_config is None:
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die("*** The pkg-config script could not be found. Make sure it is\n"
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"*** in your path, or set the PKG_CONFIG environment variable\n"
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"*** to the full path to pkg-config.")
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if version < min_version:
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die("*** Your version of pkg-config is too old. You need version %s or newer.",
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min_version)
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@depends_when(pkg_config, package_desc, when=when_and_compile_environment)
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@imports('subprocess')
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@imports('sys')
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@imports(_from='mozbuild.configure.util', _import='LineIO')
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def package(pkg_config, package_desc):
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# package_desc may start as a depends function, so we can't use
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# @checking here.
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log.info("checking for %s... " % package_desc)
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with log.queue_debug():
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try:
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subprocess.check_output([pkg_config, '--errors-to-stdout',
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'--print-errors', package_desc])
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log.info("yes")
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return True
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except subprocess.CalledProcessError as e:
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log.info("no")
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log_writer = log.warning if allow_missing else log.error
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with LineIO(lambda l: log_writer(l)) as o:
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o.write(e.output)
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if not allow_missing:
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sys.exit(1)
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@depends_when(pkg_config, package_desc, when=package)
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@checking('%s_CFLAGS' % var, callback=lambda t: ' '.join(t))
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def pkg_cflags(pkg_config, package_desc):
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flags = check_cmd_output(pkg_config, '--cflags', package_desc)
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return tuple(flags.split())
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@depends_when(pkg_config, package_desc, when=package)
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@checking('%s_LIBS' % var, callback=lambda t: ' '.join(t))
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def pkg_libs(pkg_config, package_desc):
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libs = check_cmd_output(pkg_config, '--libs', package_desc)
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# Remove evil flags like -Wl,--export-dynamic
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return tuple(libs.replace('-Wl,--export-dynamic', '').split())
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@depends_when(pkg_cflags, pkg_libs, when=package)
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def pkg_info(cflags, libs):
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return namespace(cflags=cflags, libs=libs)
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set_config('%s_CFLAGS' % var, pkg_cflags)
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set_config('%s_LIBS' % var, pkg_libs)
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return pkg_info
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