The former patch to sync.c was short-lived. Bruce pointed out that

"Now it is has 2 portability bugs, which is a lot for 5 lines of working code"
1994-09-20 07:02:35 +00:00 · 1994-09-20 07:02:35 +00:00 · 936982de13
commit 936982de13
parent 2c9f4788e2
1 changed files with 3 additions and 2 deletions
--- a/bin/sync/sync.c
+++ b/bin/sync/sync.c
@ -41,9 +41,10 @@ static char copyright[] =
 static char sccsid[] = "@(#)sync.c	8.1 (Berkeley) 5/31/93";
 #endif /* not lint */

-void sync();
+#include <unistd.h>

-void main()
+int
+main()
 {
 	sync();
 	exit(0);