Re-land: Resurrect Aura Linux accessibility.

build/config/linux/pkg-config.py

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import json
 import os
 import subprocess
 import sys
 import re
 from optparse import OptionParser
@@ skipping 94 matching lines @@
 
 
 parser = OptionParser()
 parser.add_option('-p', action='store', dest='pkg_config', type='string',
                   default='pkg-config')
 parser.add_option('-v', action='append', dest='strip_out', type='string')
 parser.add_option('-s', action='store', dest='sysroot', type='string')
 parser.add_option('-a', action='store', dest='arch', type='string')
 parser.add_option('--atleast-version', action='store',
                   dest='atleast_version', type='string')
+parser.add_option('--libdir', action='store_true', dest='libdir')
 (options, args) = parser.parse_args()
 
 # Make a list of regular expressions to strip out.
 strip_out = []
 if options.strip_out != None:
   for regexp in options.strip_out:
     strip_out.append(re.compile(regexp))
 
 SetConfigPath(options)
 if options.sysroot:
   prefix = GetPkgConfigPrefixToStrip(args)
 else:
   prefix = ''
 
 if options.atleast_version:
   # When asking for the return value, just run pkg-config and print the return
   # value, no need to do other work.
   if not subprocess.call([options.pkg_config,
                           "--atleast-version=" + options.atleast_version] +
                           args,
                          env=os.environ):
     print "true"
   else:
     print "false"
   sys.exit(0)
 
+if options.libdir:
+  try:
+    libdir = subprocess.check_output([options.pkg_config,
+                                      "--variable=libdir"] +
+                                     args,
+                                     env=os.environ)
+  except:
+    print "Error from pkg-config."
+    sys.exit(1)
+  sys.stdout.write(libdir.strip())
+  sys.exit(0)
+
 try:
   flag_string = subprocess.check_output(
       [ options.pkg_config, "--cflags", "--libs-only-l", "--libs-only-L" ] +
       args, env=os.environ)
   # For now just split on spaces to get the args out. This will break if
   # pkgconfig returns quoted things with spaces in them, but that doesn't seem
   # to happen in practice.
   all_flags = flag_string.strip().split(' ')
 except:
   print "Could not run pkg-config."
@@ skipping 27 matching lines @@
     # this anyway. Removing it here prevents a bunch of duplicate inclusions on
     # the command line.
     pass
   else:
     cflags.append(flag)
 
 # Output a GN array, the first one is the cflags, the second are the libs. The
 # JSON formatter prints GN compatible lists when everything is a list of
 # strings.
 print json.dumps([includes, cflags, libs, lib_dirs, ldflags])