diff -r 000000000000 -r 6474c204b198 toolkit/library/libxul.mozbuild
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/library/libxul.mozbuild	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,51 @@
+# -*- Mode: python; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+MSVC_ENABLE_PGO = True
+
+FORCE_SHARED_LIB = True
+
+DELAYLOAD_DLLS += [
+    'comdlg32.dll',
+    'dbghelp.dll',
+    'psapi.dll',
+    'rasapi32.dll',
+    'rasdlg.dll',
+    'secur32.dll',
+    'wininet.dll',
+    'winspool.drv'
+]
+
+if CONFIG['MOZ_METRO']:
+    DELAYLOAD_DLLS += [
+        'API-MS-WIN-CORE-WINRT-L' + CONFIG['CRTEXPDLLVERSION'] + '.DLL',
+        'API-MS-WIN-CORE-WINRT-STRING-L' + CONFIG['CRTEXPDLLVERSION'] + '.DLL',
+        'uiautomationcore.dll'
+    ]
+
+if CONFIG['ACCESSIBILITY']:
+    DELAYLOAD_DLLS += ['oleacc.dll']
+
+if CONFIG['MOZ_WEBRTC']:
+    DELAYLOAD_DLLS += ['msdmo.dll']
+
+if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'cocoa':
+    LDFLAGS += [
+        '-framework OpenGL',
+        '-framework SystemConfiguration',
+        '-framework QTKit',
+        '-framework IOKit',
+        '-F%s' % CONFIG['MACOS_PRIVATE_FRAMEWORKS_DIR'],
+        '-framework CoreUI',
+    ]
+
+if CONFIG['OS_ARCH'] == 'WINNT' and not CONFIG['GNU_CC']:
+    LOCAL_INCLUDES += [
+        '/widget/windows',
+        '/xpcom/base',
+    ]
+    # This file is (only) included from subdirectories, and the file is here.
+    RCINCLUDE = '../xulrunner.rc'