[Bug gcov-profile/49484] gcov crash if two(or more) forks happen at the same time

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49484

--- Comment #18 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-03-12 
15:10:29 UTC ---
Also, gthr.h says the signature should be:
  void __GTHREAD_MUTEX_INIT_FUNCTION (__gthread_mutex_t *)