From 46711df821e6955e5fdc91e2d939356e048aa64b Mon Sep 17 00:00:00 2001
From: Mark Kettenis <kettenis@gnu.org>
Date: Mon, 27 Aug 2001 22:39:56 +0000
Subject: * event-top.c (async_stop_sig) [HAVE_SIGPROCMASK]: Some gratuitious
 whitespace changes. [!HAVE_SIGPROCMASK]: Call sigsetmask if HAVE_SIGSETMASK
 is defined. * top.c: Remove redundant logic to define HAVE_SIGSETMASK.
 (sigsetmask) Don't define macro. (stop_sig) [HAVE_SIGPROCMASK]: Add bit of
 code snatched from async_stop_sig from event-top.c. [!HAVE_SIGPROCMASK]: Call
 sigsetmask if HAVE_SIGSETMASK is defined. * configure.in (AC_CHECK_FUNCS):
 Put functions in alphabetical order.  Add sigsetmask. (AC_FUNC_VFORK,
 AC_FUNC_ALLOCA): Reorder such that they're in alphabetical order. *
 config/xm-aix4.h, config/alpha/xm-alphalinux.h, config/i386/xm-cygwin.h,
 config/rs6000/xm-rs6000.h (HAVE_SIGSETMASK): Remove. * aclocal.m4, config.in,
 configure

---
 gdb/top.c | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

(limited to 'gdb/top.c')

diff --git a/gdb/top.c b/gdb/top.c
index 33a853b..5d644dc 100644
--- a/gdb/top.c
+++ b/gdb/top.c
@@ -178,19 +178,6 @@ static void stop_sig (int);
 #endif
 #endif
 
-/* Some System V have job control but not sigsetmask(). */
-#if !defined (HAVE_SIGSETMASK)
-#if !defined (USG)
-#define HAVE_SIGSETMASK 1
-#else
-#define HAVE_SIGSETMASK 0
-#endif
-#endif
-
-#if 0 == (HAVE_SIGSETMASK)
-#define sigsetmask(n)
-#endif
-
 /* Hooks for alternate command interfaces.  */
 
 /* Called after most modules have been initialized, but before taking users
@@ -922,7 +909,16 @@ stop_sig (int signo)
 {
 #if STOP_SIGNAL == SIGTSTP
   signal (SIGTSTP, SIG_DFL);
+#if HAVE_SIGPROCMASK
+  {
+    sigset_t zero;
+
+    sigemptyset (&zero);
+    sigprocmask (SIG_SETMASK, &zero, 0);
+  }
+#elif HAVE_SIGSETMASK
   sigsetmask (0);
+#endif
   kill (getpid (), SIGTSTP);
   signal (SIGTSTP, stop_sig);
 #else
-- 
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