Provisionally fix Windows build broken by last commit.

* w32fns.c (menubar_in_use): No more static.
* w32term.c (current_popup_menu, menubar_in_use): Declare.

src/ChangeLog

+2014-07-25  Martin Rudalics  <rudalics@gmx.at>
+
+	* w32fns.c (menubar_in_use): No more static.
+	* w32term.c (current_popup_menu, menubar_in_use): Declare.
+
 2014-07-25  Dmitry Antipov  <dmantipov@yandex.ru>
 
 	Move hourglass machinery to RIF.

src/w32fns.c

@@ -224,7 +224,7 @@ static int w32_unicode_gui;
 
 /* From w32menu.c  */
 extern HMENU current_popup_menu;
-static int menubar_in_use = 0;
+int menubar_in_use = 0;
 
 /* From w32uniscribe.c  */
 extern void syms_of_w32uniscribe (void);

src/w32term.c

@@ -93,6 +93,9 @@ extern void free_frame_menubar (struct frame *);
 extern int w32_codepage_for_font (char *fontname);
 extern Cursor w32_load_cursor (LPCTSTR name);
 
+extern HMENU current_popup_menu;
+extern int menubar_in_use;
+
 #define x_any_window_to_frame x_window_to_frame
 #define x_top_window_to_frame x_window_to_frame