+diff --git a/acls.c b/acls.c
+--- a/acls.c
++++ b/acls.c
+@@ -31,6 +31,7 @@ extern int list_only;
+ extern int orig_umask;
+ extern int numeric_ids;
+ extern int inc_recurse;
++extern int protocol_version;
+
+ /* Flags used to indicate what items are being transmitted for an entry. */
+ #define XMIT_USER_OBJ (1<<0)
+@@ -97,6 +98,18 @@ static const char *str_acl_type(SMB_ACL_TYPE_T type)