--- a/src/iceauth.c Fri Apr 17 08:59:23 2015 +++ b/src/iceauth.c Fri Apr 17 09:11:21 2015 @@ -41,6 +41,7 @@ #endif static int was_called_state; +extern void arc4random_buf(void *buf, size_t nbytes); /* * MIT-MAGIC-COOKIE-1 is a sample authentication method implemented by