Defined in 2 files as a prototype:

• include/signal.h, line 85 (as a prototype)
• pthreads/pthread.h, line 394 (as a prototype)

Referenced in 3 files:

• fbsdcompat/_fbsd_compat_.h, line 108
• i386/sys/pthread_sigmask.s, line 28
• ppc/sys/pthread_sigmask.s, line 25