Index: pam_ssh-1.91/cipher.c
===================================================================
--- pam_ssh-1.91.orig/cipher.c
+++ pam_ssh-1.91/cipher.c
@@ -39,6 +39,7 @@
 #include <string.h>
 
 #include <openssl/evp.h>
+#include <openssl/md5.h>
 
 #include <config.h>
 #include "cipher.h"