Firefox 26

Tested on my computer.

I needed to patch the build system to make Firefox compile.  I don't exactly understand what I did, but I'm pretty sure my patch just changes how files are purged at some step, so it should be harmless.

Should I mention this upstream, or is this NixOS's fault?

Here is the error that the patch fixes.  This happens after the build phase, so probabli during the install phase.

    building tools
    make[2]: Leaving directory `/tmp/nix-build-firefox-26.0.drv-0/mozilla-release/browser'
    make[1]: Leaving directory `/tmp/nix-build-firefox-26.0.drv-0/mozilla-release'
    building dist/bin/browser/.purgecaches
    if test -d dist/bin/browser ; then touch dist/bin/browser/.purgecaches ; fi
    building dist/bin/webapprt/.purgecaches
    if test -d dist/bin/webapprt ; then touch dist/bin/webapprt/.purgecaches ; fi
    installing
    install flags: install SYSTEM_LIBXUL=1   
    building backend.RecursiveMakeBackend.built
    Build configuration changed. Regenerating backend.
    Reticulating splines...
    building libgnashbase_la-RTMP.lo
      CXX    libgnashbase_la-RTMP.lo
    /bin/sh ../libtool --silent --tag=CXX   --mode=compile g++ -DHAVE_CONFIG_H -I. -I..  -DPLUGINSDIR=\"/nix/store/rfwywvbjgcf2jhsmj1p8bh0g2vdh7xc1-gnash-0.8.10/lib/gnash/plugins\" -DSYSCONFDIR=\"/nix/store/rfwywvbjgcf2jhsmj1p8bh0g2vdh7xc1-gnash-0.8.10/etc\" -pthread -I/nix/store/jn120w693hhx1fx3yn45pmji66szsd6s-libpng-1.6.4/include/libpng16    -I/nix/store/vrgbgiv7wls0asdhgsh1z9l0mrvg4b2q-curl-7.33.0/include -DCURL_STATICLIB      -I../librender      -g -O2          -W     -Wall     -Wcast-align     -Wcast-qual     -Wpointer-arith     -Wreturn-type     -Wnon-virtual-dtor     -Wunused      -fvisibility-inlines-hidden -c -o libgnashbase_la-RTMP.lo `test -f 'RTMP.cpp' || echo './'`RTMP.cpp
    Traceback (most recent call last):
      File "./config.status", line 945, in <module>
        config_status(**args)
      File "/tmp/nix-build-firefox-26.0.drv-0/mozilla-release/build/ConfigStatus.py", line 126, in config_status
        summary = backend.consume(definitions)
      File "/tmp/nix-build-firefox-26.0.drv-0/mozilla-release/python/mozbuild/mozbuild/backend/base.py", line 210, in consume
        self.consume_finished()
      File "/tmp/nix-build-firefox-26.0.drv-0/mozilla-release/python/mozbuild/mozbuild/backend/recursivemake.py", line 246, in consume_finished
        CommonBackend.consume_finished(self)
      File "/tmp/nix-build-firefox-26.0.drv-0/mozilla-release/python/mozbuild/mozbuild/backend/common.py", line 58, in consume_finished
        self._handle_idl_manager(self._idl_manager)
      File "/tmp/nix-build-firefox-26.0.drv-0/mozilla-release/python/mozbuild/mozbuild/backend/recursivemake.py", line 471, in _handle_idl_manager
        xpidl_modules=' '.join(xpt_modules),
      File "/tmp/nix-build-firefox-26.0.drv-0/mozilla-release/python/mozbuild/mozbuild/backend/configenvironment.py", line 209, in create_config_file
        return self.create_makefile(path, extra=extra)
      File "/tmp/nix-build-firefox-26.0.drv-0/mozilla-release/python/mozbuild/mozbuild/backend/configenvironment.py", line 231, in create_makefile
        pp.do_include(self.get_input(path))
      File "/tmp/nix-build-firefox-26.0.drv-0/mozilla-release/config/Preprocessor.py", line 445, in do_include
        raise Preprocessor.Error(self, 'FILE_NOT_FOUND', str(args))
    Preprocessor.Error: ('', 0, 'FILE_NOT_FOUND', '/tmp/nix-build-firefox-26.0.drv-0/mozilla-release/config/makefiles/xpidl/Makefile.in')
    make: *** [backend.RecursiveMakeBackend.built] Error 1
    builder for `/nix/store/h7pwlhs2m0w4nl7zdbf4qnj9j5fnwsn3-firefox-26.0.drv' failed with exit code 2
    cannot build derivation `/nix/store/887yrqwkaa3xm0yp809cbqzp8bvvx8id-firefox-26.0-with-plugins.drv': 1 dependencies couldn't be built
    error: build of `/nix/store/887yrqwkaa3xm0yp809cbqzp8bvvx8id-firefox-26.0-with-plugins.drv' failed