# Avoid warnings about memset/memcpy
--- a/ciso.c	2006-11-03 15:53:29.000000000 -0500
+++ b/ciso.c	2023-08-26 09:59:57.817871093 -0400
@@ -22,6 +22,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <zlib.h>               /* /usr(/local)/include/zlib.h */
 #include <zconf.h>