updated for version 7.0080
diff --git a/src/proto/mbyte.pro b/src/proto/mbyte.pro
index 11b6443..6e85df0 100644
--- a/src/proto/mbyte.pro
+++ b/src/proto/mbyte.pro
@@ -39,7 +39,7 @@
int utf_islower __ARGS((int a));
int utf_tolower __ARGS((int a));
int utf_isupper __ARGS((int a));
-int mb_strnicmp __ARGS((char_u *s1, char_u *s2, int n));
+int mb_strnicmp __ARGS((char_u *s1, char_u *s2, size_t nn));
void show_utf8 __ARGS((void));
int latin_head_off __ARGS((char_u *base, char_u *p));
int dbcs_head_off __ARGS((char_u *base, char_u *p));