Improve 'alarm' implementation on MS-Windows.

 src/w32proc.c (alarm) [HAVE_SETITIMER]: Be more conformant to the expected
 return results.
 [!HAVE_SETITIMER]: Behave as the previous version that didn't
 support timers.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index cfa80ed8899..d972f754549 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -7,6 +7,10 @@
         (getitimer, setitimer): If disable_itimers is non-zero, return an
         error indication without doing anything.  Reported by Fabrice
         Popineau <fabrice.popineau@supelec.fr> as part of bug#12544.
+        (alarm) [HAVE_SETITIMER]: Be more conformant to the expected
+        return results.
+        [!HAVE_SETITIMER]: Behave as the previous version that didn't
+        support timers.
 
         * emacs.c (shut_down_emacs) [WINDOWSNT]: Move the call to
         term_ntproc after all the other bookkeeping, to get timers working