http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57119
--- Comment #15 from Dongsheng Song <dongsheng.song at gmail dot com> --- gcc 4.7.x never have such issue. for gcc 4.8.x or trunk, I did not build multilib long ago. because I can not build multilib which x64 use SEH, and x86 use SJLJ. I must build with SJLJ for x64 and x86.