(wait_for_termination): Add POSIX_SIGNALS alternative.

[gnu-emacs] / src / sysdep.c

diff --git a/src/sysdep.c b/src/sysdep.c
index 1e3904c5ad46bdf40c3c02d28d45388abfb98c36..167b9c398a92ae96e58db8c4764b964f5c4276bb 100644 (file)
--- a/src/sysdep.c
+++ b/src/sysdep.c
@@ -339,6 +339,15 @@ wait_for_termination (pid)
        break;
       wait (0);
 #else /* neither BSD nor UNIPLUS nor LINUX: random sysV */
+#ifdef POSIX_SIGNALS   /* would this work for LINUX as well? */
+      sigblock (sigmask (SIGCHLD));
+      if (0 > kill (pid, 0))
+       {
+         sigunblock (sigmask (SIGCHLD));
+         break;
+       }
+      sigpause (sigmask (SIGCHLD));
+#else /* not POSIX_SIGNALS */
 #ifdef HAVE_SYSV_SIGPAUSE
       sighold (SIGCHLD);
       if (0 > kill (pid, 0))
@@ -355,6 +364,7 @@ wait_for_termination (pid)
         we lose just one second.  */
       sleep (1);
 #endif /* not HAVE_SYSV_SIGPAUSE */
+#endif /* not POSIX_SIGNALS */
 #endif /* not UNIPLUS */
 #endif /* not BSD, and not HPUX version >= 6 */
 #endif /* not VMS */
@@ -2113,7 +2123,7 @@ sys_signal (int signal_number, signal_handler_t action)
 #else
   sigemptyset (&new_action.sa_mask);
   new_action.sa_handler = action;
-  new_action.sa_flags = NULL;
+  new_action.sa_flags = 0;
   sigaction (signal_number, &new_action, &old_action);
   return (old_action.sa_handler);
 #endif /* DGUX */