How to build Google Web Toolkit DevMode plugin for Firefox 17.0 on Mac OS X

1. Install XCode if you do not have it. (XCode 3.2.6 is recommended for building this plugin, because the source code is configured to used Mac OS 10.5 sdk, which is included in XCode 3.2.6, but it is dropped by later version XCodes. However, the later version e.g. xcode 4.3, can also be used with a few modifications on the configuration.)
   • To download XCode go to: https://developer.apple.com/downloads. (You need to sign up and login.)
   • Here is a guide on how to install xcode on Mac OS X 10.7 Lion
2. Check out the source code:

       svn checkout http://google-web-toolkit.googlecode.com/svn/trunk/plugins gwt/plugins
       svn checkout http://google-web-toolkit.googlecode.com/svn/plugin-sdks/gecko-sdks/gecko-17.0.0 plugin-sdks/gecko-sdks/gecko-17.0.0
     

3. If you have xcode 3.2.6 installed, you can try to build it:

   cd gwt/plugins/xpcom && make BROWSER=ff170

4. If you have later xcode version, e.g. xcode 4.3, installed, the command above will fail with errors finding cstdio.h. To make it work, you need to
   1. modify plugins/config.mk,

      vi ../config.mk

      change

      BASECFLAGS= $(DEBUGCFLAGS) -O2 -fPIC $(INC) -D__mac -mmacosx-version-min=10.5 -isysroot /Developer/SDKs/MacOSX10.5.sdk -std=c++11

      to

      BASECFLAGS= $(DEBUGCFLAGS) -O2 -fPIC $(INC) -D__mac -mmacosx-version-min=10.7 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk -std=c++11

   2. modify gwt/plugins/xpcom/Makefile,

      vi Makefile

      change

      DLLFLAGS += -bundle $(ALLARCHCFLAGS) -mmacosx-version-min=10.5  -isysroot /Developer/SDKs/MacOSX10.5.sdk

      to

      DLLFLAGS += -bundle $(ALLARCHCFLAGS) -mmacosx-version-min=10.7  -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk

5. run

   make BROWSER=ff170

   (in gwt/plugins/xpcom directory.) to build.
6. the result plugin file will be gwt/plugins/xpcom/prebuilt/wt-dev-plugin.xpi