Update the mac xpcom plugin for Gecko 2.0 (FF4).  This is a platform switch for
mac: ppc+i386 to i386+x86_64 to mirror Firefox's platform shift.

Also, fixup the linux libxul linkage: we had been getting lucky with -rdynamic
on linux for the JS symbols which can actually be found in libxul (and are
required for the mac build).

Review at http://gwt-code-reviews.appspot.com/1311802

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9597 8db76d5a-ed1c-0410-87a9-c151d255dfc7
18 files changed