Update a comment.

diff --git a/ChangeLog b/ChangeLog
index dcb8f5e59e5d73e0cf08d7dd26b0374cf48f3a24..c9d6fa1d04a6c29e9551424a9a95316915710357 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2008-06-22  Bruno Haible  <bruno@clisp.org>
+
+       * lib/sigprocmask.c: Update a comment.
+
 2008-06-21  Eric Blake  <ebb9@byu.net>
 
        Use sigaction module rather than signal().

diff --git a/lib/sigprocmask.c b/lib/sigprocmask.c
index a8f2eb4e396568de7c7412e65f34640fe721f3b4..54e9c68f5bf41abbe1ed9325113409884f3e4fa5 100644 (file)
--- a/lib/sigprocmask.c
+++ b/lib/sigprocmask.c
@@ -188,7 +188,8 @@ sigprocmask (int operation, const sigset_t *set, sigset_t *old_set)
              {
                if (signal (sig, old_handlers[sig]) != blocked_handler)
                  /* The application changed a signal handler while the signal
-                    was blocked.  We don't support this.  */
+                    was blocked, bypassing our rpl_signal replacement.
+                    We don't support this.  */
                  abort ();
                received[sig] = pending_array[sig];
                blocked_set &= ~(1U << sig);
@@ -230,7 +231,8 @@ rpl_signal (int sig, sa_handler_t handler)
          old_handlers[sig] = handler;
          return result;
        }
-      return signal (sig, handler);
+      else
+       return signal (sig, handler);
     }
   else
     {