diff --git a/src/proto/window.pro b/src/proto/window.pro
index def28bb..97a25df 100644
--- a/src/proto/window.pro
+++ b/src/proto/window.pro
@@ -4,7 +4,9 @@
 win_T *swbuf_goto_win_with_buf(buf_T *buf);
 void do_window(int nchar, long Prenum, int xchar);
 void get_wincmd_addr_type(char_u *arg, exarg_T *eap);
+int check_split_disallowed(win_T *wp);
 int win_split(int size, int flags);
+int win_splitmove(win_T *wp, int size, int flags);
 int win_split_ins(int size, int flags, win_T *new_wp, int dir);
 int win_valid_popup(win_T *win);
 int win_valid(win_T *win);
@@ -88,7 +90,7 @@
 void check_lnums(int do_curwin);
 void check_lnums_nested(int do_curwin);
 void reset_lnums(void);
-void make_snapshot(int idx);
+int make_snapshot(int idx);
 void restore_snapshot(int idx, int close_curwin);
 int win_hasvertsplit(void);
 int get_win_number(win_T *wp, win_T *first_win);