http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61095
--- Comment #11 from Kostya Serebryany <kcc at gcc dot gnu.org> --- ignore comment #9, everything seems to work now. This passes: make -j 40 -C gcc check-g{cc,++} RUNTESTFLAGS='--target_board=unix\{-m32,-m64\} tsan.exp'