Revert "fix bug#605156 by ordering libtool archives that may pull in …

…system"

This reverts commit e14bdeb.  While
that commit fixed things in some cases, it broke others.  I think the
problem people are running into here that we actually need the library
path order to be:

.:$BUILD_ROOT:/usr

Ensure that the middle happens by explicitly calling pkg-config.

https://bugzilla.gnome.org/show_bug.cgi?id=605156

giscanner/dumper.py

@@ -197,8 +197,12 @@ def _link(self, output, *sources):
         # Search the current directory first
         args.append('-L.')
 
-        libtool_args = []
         uninst_builddir = os.environ.get('UNINSTALLED_INTROSPECTION_BUILDDIR')
+        if not uninst_builddir:
+            proc = subprocess.Popen([self._pkgconfig_cmd, '--libs',
+                                     'gobject-introspection-1.0'],
+                                    stdout=subprocess.PIPE)
+            args.extend(proc.communicate()[0].split())
         # hack for building GIRepository.gir, skip -lgirepository-1.0 since
         # libgirepository-1.0.la is not in current directory and we refer to it
         # explicitly below anyway
@@ -207,7 +211,7 @@ def _link(self, output, *sources):
                 self._options.libraries[0] == 'girepository-1.0'):
                 continue
             if library.endswith(".la"): # explicitly specified libtool library
-                libtool_args.append(library)
+                args.append(library)
             else:
                 args.append('-l' + library)
 
@@ -222,8 +226,6 @@ def _link(self, output, *sources):
             if not os.path.exists(source):
                 raise CompilerError(
                     "Could not find object file: %s" % (source, ))
-        # need to be late - cf. bug#605156
-        args.extend(libtool_args)
         args.extend(list(sources))
 
         subprocess.check_call(args)