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-rw-r--r--lib-src/wakeup.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib-src/wakeup.c b/lib-src/wakeup.c
index 61ad4401d1f..eb3dd72c95c 100644
--- a/lib-src/wakeup.c
+++ b/lib-src/wakeup.c
@@ -18,6 +18,9 @@ main (argc, argv)
while (1)
{
+ /* Make sure wakeup stops when Emacs goes away. */
+ if (getppid () == 1)
+ exit (0);
printf ("Wake up!\n");
fflush (stdout);
/* If using a period of 60, produce the output when the minute