firebox build fails post clang-3.4 merge

[Michael Butler]

Is anyone else seeing firefox failing to install after the clang-3.4
merge? As in xpcshell dumping core ..

===>   firefox-27.0.1,1 depends on shared library:
startup-notification-1.0 - found
===>   firefox-27.0.1,1 depends on shared library: pulse.0 - found
gmake[3]: Entering directory
`/usr/ports/www/firefox/work/mozilla-release/obj-i386-portbld-freebsd11.0'
gmake[4]: Entering directory
`/usr/ports/www/firefox/work/mozilla-release/obj-i386-portbld-freebsd11.0/browser/installer'
/usr/ports/www/firefox/work/mozilla-release/obj-i386-portbld-freebsd11.0/_virtualenv/bin/python
../../../config/Preprocessor.py -DMOZ_GLUE_IN_PROGRAM -DNO_NSPR_10_S
OMNIJAR_NAME=omni.ja \
/usr/ports/www/firefox/work/mozilla-release/obj-i386-portbld-freebsd11.0/_virtualenv/bin/python
../../../toolkit/mozapps/installer/packager.py -DMOZ_GLUE_IN_PROGRAM
        --format omni \
        --removals ../../../browser/installer/removed-files.in \
         \
         \
         \
        --optimizejars \
         \
        package-manifest ../../dist ../../dist/firefox \

Executing
/usr/ports/www/firefox/work/mozilla-release/obj-i386-portbld-freebsd11.0/dist/bin/xpcshell
-g /usr/ports/www/firefox/work/mozilla-release/obj-i386-portbld
Traceback (most recent call last):
  File "../../../toolkit/mozapps/installer/packager.py", line 375, in
<module>
    main()
  File "../../../toolkit/mozapps/installer/packager.py", line 367, in main
    args.source, gre_path, base)
  File "../../../toolkit/mozapps/installer/packager.py", line 148, in
precompile_cache
    errors.fatal('Error while running startup cache precompilation')
  File
"/usr/ports/www/firefox/work/mozilla-release/python/mozbuild/mozpack/errors.py",
line 101, in fatal
    self._handle(self.FATAL, msg)
  File
"/usr/ports/www/firefox/work/mozilla-release/python/mozbuild/mozpack/errors.py",
line 96, in _handle
    raise ErrorMessage(msg)
mozpack.errors.ErrorMessage: Error: Error while running startup cache
precompilation
gmake[4]: *** [stage-package] Error 1
gmake[4]: Leaving directory
`/usr/ports/www/firefox/work/mozilla-release/obj-i386-portbld-freebsd11.0/browser/installer'
gmake[3]: *** [install] Error 2
gmake[3]: Leaving directory
`/usr/ports/www/firefox/work/mozilla-release/obj-i386-portbld-freebsd11.0'
*** Error code 2