Index: src/modules/rlm_ldap/rlm_ldap.c
===================================================================
--- src/modules/rlm_ldap/rlm_ldap.c.orig	2009-06-02 14:53:31.000000000 +0200
+++ src/modules/rlm_ldap/rlm_ldap.c	2009-06-02 14:53:45.000000000 +0200
@@ -1862,7 +1862,7 @@ static int ldap_authenticate(void *insta
 		LDAP_CONN       *conn1;
 		int auth_state = -1;
 		char            *challenge = NULL;
-		int             challenge_len = MAX_CHALLENGE_LEN;
+		size_t          challenge_len = MAX_CHALLENGE_LEN;
 		char            *state = NULL;
 
 		dattr = dict_attrbyname("eDir-APC");