diff --git a/src/proto/gui_gtk_x11.pro b/src/proto/gui_gtk_x11.pro
index 56a779b..e4b2111 100644
--- a/src/proto/gui_gtk_x11.pro
+++ b/src/proto/gui_gtk_x11.pro
@@ -59,6 +59,7 @@
 void clip_mch_lose_selection __ARGS((VimClipboard *cbd));
 int clip_mch_own_selection __ARGS((VimClipboard *cbd));
 void clip_mch_set_selection __ARGS((VimClipboard *cbd));
+int clip_gtk_owner_exists __ARGS((VimClipboard *cbd));
 void gui_mch_menu_grey __ARGS((vimmenu_T *menu, int grey));
 void gui_mch_menu_hidden __ARGS((vimmenu_T *menu, int hidden));
 void gui_mch_draw_menubar __ARGS((void));
diff --git a/src/proto/ops.pro b/src/proto/ops.pro
index 85fb983..a8c144e 100644
--- a/src/proto/ops.pro
+++ b/src/proto/ops.pro
@@ -15,6 +15,7 @@
 int may_get_selection __ARGS((int regname));
 void *get_register __ARGS((int name, int copy));
 void put_register __ARGS((int name, void *reg));
+void free_register __ARGS((void *reg));
 int yank_register_mline __ARGS((int regname));
 int do_record __ARGS((int c));
 int do_execreg __ARGS((int regname, int colon, int addcr, int silent));
diff --git a/src/proto/ui.pro b/src/proto/ui.pro
index 813d496..234e99f 100644
--- a/src/proto/ui.pro
+++ b/src/proto/ui.pro
@@ -29,6 +29,7 @@
 void clip_gen_lose_selection __ARGS((VimClipboard *cbd));
 void clip_gen_set_selection __ARGS((VimClipboard *cbd));
 void clip_gen_request_selection __ARGS((VimClipboard *cbd));
+int clip_gen_owner_exists __ARGS((VimClipboard *cbd));
 int vim_is_input_buf_full __ARGS((void));
 int vim_is_input_buf_empty __ARGS((void));
 int vim_free_in_input_buf __ARGS((void));
@@ -52,6 +53,7 @@
 void clip_x11_lose_selection __ARGS((Widget myShell, VimClipboard *cbd));
 int clip_x11_own_selection __ARGS((Widget myShell, VimClipboard *cbd));
 void clip_x11_set_selection __ARGS((VimClipboard *cbd));
+int clip_x11_owner_exists __ARGS((VimClipboard *cbd));
 void yank_cut_buffer0 __ARGS((Display *dpy, VimClipboard *cbd));
 int jump_to_mouse __ARGS((int flags, int *inclusive, int which_button));
 int mouse_comp_pos __ARGS((win_T *win, int *rowp, int *colp, linenr_T *lnump));