http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60134
--- Comment #1 from Ian Lance Taylor <ian at airs dot com> --- I don't know which repository your git commit ID refers to. The gofrontend uses Mercurial and GCC uses Subversion. I suspect this problem was fixed by revision 205940 in the GCC Subversion repository, committed 2013-12-12, http://gcc.gnu.org/ml/gcc-patches/2013-12/msg01202.html . Do the sources you are building include that patch?