* src/main.c (clean_up): call del_frame_undo not pop_frame_undo

* src/globals.h: new global prototype rp_frame_redos

* src/globals.c: new global rp_frame_redos

* src/actions.h: new command 'undo'
(del_frame_undo): new prototype
(pop_frame_undo): delete prototype

* src/actions.c (init_user_commands): new command 'undo'
(clear_frame_redos): new function
(del_frame_undo): likewise
(push_frame_undo): call del_frame_undo instead of pop_frame_undo. call clear_frame_redos.
(pop_frame_list): new function
(pop_frame_undo): returns the popped frame. all callers updated.
(pop_frame_redo): new function
(initialize_default_keybindings): bind undo to u and C-u, bind redo to U.
(set_maxundos): call del_frame_undo instead of pop_frame_redo
(cmd_redo): new function

1 files changed, 1 insertions, 1 deletions

diff --git a/src/main.c b/src/main.c
index 365985c..123445f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -738,7 +738,7 @@ clean_up ()
       /* Delete the oldest node */
       rp_frame_undo *cur;
       list_last (cur, &rp_frame_undos, node);
-      pop_frame_undo (cur);
+      del_frame_undo (cur);
     }
 
   /* Free the global frame numset shared by all screens. */