--- whirlgif.c.orig	1999-02-22 13:33:18.000000000 -0600
+++ whirlgif.c	2012-01-14 22:20:45.000000000 -0600
@@ -96,7 +96,7 @@
   return((i-j)*(i-j));
 }
 
-void main(argc, argv)
+int main(argc, argv)
  int            argc;
  char           *argv[];
 {