Linux: use generated library loader for gsettings.

tools/generate_library_loader/generate_library_loader.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 """
 Creates a library loader (a header and implementation file),
 which is a wrapper for dlopen or direct linking with given library.
 
 The loader makes it possible to have the same client code for both cases,
@@ skipping 128 matching lines @@
 IMPL_MEMBER_CLEANUP_TEMPLATE = """  %(function_name)s = NULL;
 """
 
 def main():
   parser = optparse.OptionParser()
   parser.add_option('--name')
   parser.add_option('--output-cc')
   parser.add_option('--output-h')
   parser.add_option('--header')
 
+  parser.add_option('--bundled-header')
   parser.add_option('--use-extern-c', action='store_true', default=False)
   parser.add_option('--link-directly', type=int, default=0)
 
   options, args = parser.parse_args()
 
   if not options.name:
     parser.error('Missing --name parameter')
   if not options.output_cc:
     parser.error('Missing --output-cc parameter')
   if not options.output_h:
@@ skipping 24 matching lines @@
     })
     member_init.append(IMPL_MEMBER_INIT_TEMPLATE % {
       'function_name': fn,
       'unique_prefix': unique_prefix
     })
     member_cleanup.append(IMPL_MEMBER_CLEANUP_TEMPLATE % {
       'function_name': fn,
       'unique_prefix': unique_prefix
     })
 
-  wrapped_header_include = '#include %s' % options.header
+  header = options.header
+  if options.link_directly == 0 and options.bundled_header:
+    header = options.bundled_header
+  wrapped_header_include = '#include %s\n' % header
 
   # Some libraries (e.g. libpci) have headers that cannot be included
   # without extern "C", otherwise they cause the link to fail.
   # TODO(phajdan.jr): This is a workaround for broken headers. Remove it.
   if options.use_extern_c:
     wrapped_header_include = 'extern "C" {\n%s\n}\n' % wrapped_header_include
 
   # It seems cleaner just to have a single #define here and #ifdefs in bunch
   # of places, rather than having a different set of templates, duplicating
   # or complicating more code.
@@ skipping 35 matching lines @@
   impl_file = open(options.output_cc, 'w')
   try:
     impl_file.write(impl_contents)
   finally:
     impl_file.close()
 
   return 0
 
 if __name__ == '__main__':
   sys.exit(main())