sigpipe_set 75 maint/gnulib/lib/sigpipe-die.c sigset_t sigpipe_set; sigpipe_set 77 maint/gnulib/lib/sigpipe-die.c sigemptyset (&sigpipe_set); sigpipe_set 78 maint/gnulib/lib/sigpipe-die.c sigaddset (&sigpipe_set, SIGPIPE); sigpipe_set 79 maint/gnulib/lib/sigpipe-die.c sigprocmask (SIG_UNBLOCK, &sigpipe_set, NULL);