gnome: Link against dependencies when building the gir files

dependencies.py

@@ -71,6 +71,7 @@ class PkgConfigDependency(Dependency):
 
     def __init__(self, name, environment, kwargs):
         Dependency.__init__(self)
+        self.is_libtool = False
         self.required = kwargs.get('required', True)
         if 'native' in kwargs and environment.is_cross_build():
             want_cross = not kwargs['native']
@@ -150,6 +151,7 @@ class PkgConfigDependency(Dependency):
                                            'but we could not compute the actual shared'
                                            'library path' % lib)
                     lib = shared_lib
+                    self.is_libtool = True
 
                 self.libs.append(lib)
 

modules/gnome.py

@@ -168,6 +168,15 @@ class GnomeModule:
                 girdir = dep.held_object.get_variable ("girdir")
                 if girdir:
                     scan_command += ["--add-include-path=%s" % girdir]
+                for lib in dep.held_object.libs:
+                    if os.path.isabs(lib) and dep.held_object.is_libtool:
+                        scan_command += ["-L%s" % os.path.dirname(lib)]
+                        libname = os.path.basename(lib)
+                        if libname.startswith("lib"):
+                            libname = libname[3:]
+                        libname = libname.split(".so")[0]
+                        lib = "-l%s" % libname
+                    scan_command += [lib]
 
         inc_dirs = None
         if kwargs.get('include_directories'):