from Yitzhak

Add absent prototypes to some core routines.
Also add some port function() to function(void) in some win32 routines.
Also updates the Borland C Makefile for win32.

win/win32/mhmsgwnd.h

@@ -8,7 +8,7 @@
 #include "config.h"
 #include "global.h"
 
-HWND mswin_init_message_window ();
+HWND mswin_init_message_window (void);
 void mswin_message_window_size (HWND hWnd, LPSIZE sz);