The following patch is, I believe, necessary and sufficient to fix some minor breakage recently inadvertently perpetrated on the MS-DOS build:
=== modified file 'src/msdos.c'
--- src/msdos.c 2014-08-09 16:12:33 +0000
+++ src/msdos.c 2014-08-09 21:51:56 +0000
@@ -71,6 +71,7 @@
#include "coding.h"
#include "disptab.h"
#include "window.h"
+#include "menu.h"
#include "buffer.h"
#include "commands.h"
#include "blockinput.h"
=== modified file 'src/term.c'
--- src/term.c 2014-07-27 13:21:30 +0000
+++ src/term.c 2014-08-09 11:15:08 +0000
@@ -3935,7 +3935,11 @@
terminal->reset_terminal_modes_hook = &tty_reset_terminal_modes;
terminal->set_terminal_modes_hook = &tty_set_terminal_modes;
terminal->update_end_hook = &tty_update_end;
+#ifdef MSDOS
+ terminal->menu_show_hook = &x_menu_show;
+#else
terminal->menu_show_hook = &tty_menu_show;
+#endif
terminal->set_terminal_window_hook = &tty_set_terminal_window;
terminal->read_socket_hook = &tty_read_avail_input; /* keyboard.c */
terminal->delete_frame_hook = &tty_free_frame_resources;
But until I know my way around the DOS code better I thought I should get a second opinion.