Description of problem:
Xulrunner build fails in rawhide, see:
Created attachment 431732 [details]
preprocessed source file
preprocessed source file from a local rebuild in mock
happens on i686
This is likely http://gcc.gnu.org/PR44886.
*** Bug 614814 has been marked as a duplicate of this bug. ***
Should be fixed in gcc-4.5.0-3.fc14.