http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51296
--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-11-25 14:46:07 UTC --- Thanks for the info - that error implies the mutex was not correctly initialized. What are these macros defined to (if defined)? __GTHREAD_MUTEX_INIT __GTHREAD_MUTEX_INIT __GTHREAD_MUTEX_INIT_FUNCTION > FAIL: 30_threads/future/cons/constexpr.cc scan-assembler-not _ZNSt6futureIvEC2Ev > FAIL: 30_threads/future/cons/constexpr.cc scan-assembler-not _ZNSt6futureIiEC2Ev > FAIL: 30_threads/shared_future/cons/constexpr.cc scan-assembler-not _ZNSt13shared_futureIvEC2Ev > FAIL: 30_threads/shared_future/cons/constexpr.cc scan-assembler-not _ZNSt13shared_futureIiEC2Ev These errors indicate a front-end problem (failing to do static init for the constexpr constructor) or a bug in the testcase.
