tools: fix gyp to work MacOSX without XCode

Shigeki Ohtsu · Shigeki Ohtsu · commit 1ee5b6df11a4 · 2015-02-10T09:27:52.000+09:00
This issue has already submitted to the upstream in https://code.google.com/p/gyp/issues/detail?id=477 Use this commit until the upstream is to be fixed.
diff --git a/tools/gyp/pylib/gyp/xcode_emulation.py b/tools/gyp/pylib/gyp/xcode_emulation.py
@@ -1465,6 +1465,8 @@ def _GetXcodeEnv(xcode_settings, built_products_dir, srcroot, configuration,
     sdk_root = xcode_settings._SdkRoot(configuration)
     if not sdk_root:
       sdk_root = xcode_settings._XcodeSdkPath('')
+    if sdk_root is None:
+      sdk_root = ''
     env['SDKROOT'] = sdk_root
 
   if not additional_settings:
