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# Copyright 2015 Ben Longbons <b.r.longbons@gmail.com>
#
# This file is part of attoconf.
#
# attoconf is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# attoconf is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with attoconf. If not, see <http://www.gnu.org/licenses/>.
import os
import sys
from ..classy import ClassyProject
from ..types import enum, ShellList
from .c import do_exec, TestError, C, Cxx
yesno = enum('yes', 'no')
def run_pkg_config(build, *args):
PKG_CONFIG = build.vars['PKG_CONFIG']
status, output = do_exec(build, PKG_CONFIG + list(args))
if status:
raise TestError(output)
return output.strip()
def check_pkg_config(build, PKG_CONFIG):
version = run_pkg_config(build, '--version')
print('Found pkg-config: %s' % version)
def package_check(build, package, **var):
assert len(var) == 1
_package, enabled = var.popitem()
enabled = enabled == 'yes'
modversion = run_pkg_config(build, '--modversion', package)
print("Found dependency '%s': %s" % (package, modversion))
cppflags = run_pkg_config(build, '--cflags-only-I', package)
cflags = run_pkg_config(build, '--cflags-only-other', package)
ldflags = run_pkg_config(build, '--libs-only-L', '--libs-only-other', package)
libs = run_pkg_config(build, '--libs-only-l', package)
build.vars['CPPFLAGS'] += cppflags
if 'CFLAGS' in build.vars:
build.vars['CFLAGS'] += cflags
if 'CXXFLAGS' in build.vars:
build.vars['CXXFLAGS'] += cflags
build.vars['LDFLAGS'] += ldflags
build.vars['LIBS'] += libs
class PkgConfig(ClassyProject):
''' Fill CFLAGS etc by pkg-config for dependencies.
'''
__slots__ = ()
_merge_slots_ = ('required_packages', 'optional_packages')
def __init__(self, required_packages, optional_packages, **kwargs):
assert isinstance(self, (C, Cxx))
super(PkgConfig, self).__init__(**kwargs)
self.required_packages = required_packages
self.optional_packages = optional_packages
def vars(self):
super(PkgConfig, self).vars()
self.add_option('PKG_CONFIG', init=['pkg-config'],
type=ShellList, check=check_pkg_config,
help='Tool to find dependencies', hidden=False)
def packages(self):
super(PkgConfig, self).packages()
for package in self.required_packages:
self._pkg_config_add_package(package, True)
for package in self.optional_packages:
self._pkg_config_add_package(package, False)
def _pkg_config_add_package(self, package, hidden):
positive = '--with-' + package
negative = '--without-' + package
#check = package_required_check if hidden else package_optional_check
check = lambda build, **kwargs: package_check(build, package, **kwargs)
level = 'required' if hidden else 'optional'
help = "Build with %s dependency '%s'" % (level, package)
self.add_option(positive, type=yesno, hidden=hidden, init='yes', check=check, help=help)
# TODO: instead reveal one of the aliases and hide the main
# this requires messing with help slightly
self.add_alias(positive, [positive + '=yes'], help=None, hidden=True)
self.add_alias(negative, [positive + '=no'], help=None, hidden=True)
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