diff --git a/src/proto/mbyte.pro b/src/proto/mbyte.pro
index cac9ba8..ac350e1 100644
--- a/src/proto/mbyte.pro
+++ b/src/proto/mbyte.pro
@@ -7,10 +7,12 @@
 int latin_char2len __ARGS((int c));
 int latin_char2bytes __ARGS((int c, char_u *buf));
 int latin_ptr2len __ARGS((char_u *p));
+int latin_ptr2len_len __ARGS((char_u *p, int size));
 int utf_char2cells __ARGS((int c));
 int latin_ptr2cells __ARGS((char_u *p));
 int utf_ptr2cells __ARGS((char_u *p));
 int dbcs_ptr2cells __ARGS((char_u *p));
+int latin_ptr2cells_len __ARGS((char_u *p, int size));
 int latin_char2cells __ARGS((int c));
 int latin_off2cells __ARGS((unsigned off, unsigned max_off));
 int dbcs_off2cells __ARGS((unsigned off, unsigned max_off));
@@ -85,6 +87,7 @@
 int preedit_get_status __ARGS((void));
 int im_is_preediting __ARGS((void));
 int convert_setup __ARGS((vimconv_T *vcp, char_u *from, char_u *to));
+int convert_setup_ext __ARGS((vimconv_T *vcp, char_u *from, int from_unicode_is_utf8, char_u *to, int to_unicode_is_utf8));
 int convert_input __ARGS((char_u *ptr, int len, int maxlen));
 int convert_input_safe __ARGS((char_u *ptr, int len, int maxlen, char_u **restp, int *restlenp));
 char_u *string_convert __ARGS((vimconv_T *vcp, char_u *ptr, int *lenp));