diff -up Miro-1.2.3/platform/gtk-x11/platform/mozsetup.py.old Miro-1.2.3/platform/gtk-x11/platform/mozsetup.py
--- Miro-1.2.3/platform/gtk-x11/platform/mozsetup.py.old	2008-04-22 17:17:01.000000000 +0200
+++ Miro-1.2.3/platform/gtk-x11/platform/mozsetup.py	2008-04-28 12:51:46.000000000 +0200
@@ -106,8 +106,8 @@ def setupMozillaEnvironment():
         set_profile_path = gtkmozembed.gtk_moz_embed_set_profile_path
         
     set_profile_path(config.get(prefs.SUPPORT_DIRECTORY), 'mozilla')
-    if hasattr(gtkmozembed, 'set_comp_path'):
-        set_comp_path = gtkmozembed.set_comp_path
+    if hasattr(gtkmozembed, 'set_path'):
+        set_comp_path = gtkmozembed.set_path
     elif hasattr(gtkmozembed, 'set_path'):
         set_comp_path = gtkmozembed.set_path
     else:
diff -up Miro-1.2.3/platform/gtk-x11/setup.py.old Miro-1.2.3/platform/gtk-x11/setup.py
--- Miro-1.2.3/platform/gtk-x11/setup.py.old	2008-04-22 17:17:01.000000000 +0200
+++ Miro-1.2.3/platform/gtk-x11/setup.py	2008-04-28 13:14:27.000000000 +0200
@@ -209,6 +209,7 @@ def parsePkgConfig(command, components, 
         options_dict = {
             'include_dirs' : [],
             'library_dirs' : [],
+            'runtime_dirs' : [],
             'libraries' : [],
             'extra_compile_args' : []
         }
@@ -224,6 +225,11 @@ def parsePkgConfig(command, components, 
             options_dict['libraries'].append(rest)
         else:
             options_dict['extra_compile_args'].append(comp)
+            
+    commandLine = "%s --variable=libdir %s" % (command, components)
+    output = getCommandOutput(commandLine).strip()
+    options_dict['runtime_dirs'].append(output)
+    
     return options_dict
 
 #### The fasttypes extension ####
@@ -279,6 +285,8 @@ mozilla_browser_options = parsePkgConfig
         "gtk+-2.0 glib-2.0 pygtk-2.0 --define-variable=includetype=unstable %s %s" % (gtkmozembed, xpcom))
 mozilla_lib_path = parsePkgConfig('pkg-config', 
         '%s' % gtkmozembed)['library_dirs']
+runtime_lib_path = parsePkgConfig('pkg-config', 
+        '%s' % gtkmozembed)['runtime_dirs']
 # Find the base mozilla directory, and add the subdirs we need.
 def allInDir(directory, subdirs):
     for subdir in subdirs:
@@ -334,7 +342,7 @@ mozilla_browser_ext = Extension("miro.pl
           os.path.join(platform_html_frontend_dir,'DragAndDrop.cc'),
           os.path.join(platform_html_frontend_dir,'XPCOMUtil.cc'),
         ],
-        runtime_library_dirs=mozilla_lib_path,
+        runtime_library_dirs=runtime_lib_path,
         **mozilla_browser_options)
 #### Xlib Extension ####
 xlib_ext = \
@@ -434,7 +442,7 @@ class install_data (distutils.command.in
                              BUILD_MACHINE="%s@%s" % (getlogin(),
                                                       os.uname()[1]),
                              BUILD_TIME=str(time.time()),
-                             MOZILLA_LIB_PATH=mozilla_lib_path[0])
+                             MOZILLA_LIB_PATH=runtime_lib_path[0])
         self.outfiles.append(dest)
 
         locale_dir = os.path.join (resource_dir, "locale")