--- previous/src/slirp/ip_icmp.c	2018/04/24 19:32:38	1.1.1.2
+++ previous/src/slirp/ip_icmp.c	2018/04/24 19:34:28	1.1.1.3
@@ -206,7 +206,7 @@ icmp_error(
      u_char type,
      u_char code,
      int minsize,
-     char *message)
+     const char *message)
 {
   unsigned hlen, shlen, s_ip_len;
   register struct ip *ip;