HAVE_PTHREAD_SIGMASK 3451 process.c      #ifdef HAVE_PTHREAD_SIGMASK
HAVE_PTHREAD_SIGMASK 3484 process.c      #ifdef HAVE_PTHREAD_SIGMASK
HAVE_PTHREAD_SIGMASK  720 signal.c       #ifdef HAVE_PTHREAD_SIGMASK
HAVE_PTHREAD_SIGMASK  730 signal.c       #ifdef HAVE_PTHREAD_SIGMASK