saving message history (trunk only)

On September 11, 2003 "<Someone>" wrote:
> When we're going to have a different save file format, could
> the last messages in the message history be saved as well, so
> ^P would work the same before and after saving (possibly
> including a few less messages to make room for the startup
> messages?).

This seemed like a reasonable request. This patch:
- adds the core support required.
- adds the tty supporting routines.

include/winprocs.h

@@ -65,6 +65,8 @@ struct window_procs {
 
     void FDECL((*win_outrip), (winid,int));
     void FDECL((*win_preference_update), (const char *));
+    char * FDECL((*win_getmsghistory), (BOOLEAN_P));
+    void FDECL((*win_putmsghistory), (const char *));
 };
 
 extern NEARDATA struct window_procs windowprocs;
@@ -134,6 +136,8 @@ extern NEARDATA struct window_procs windowprocs;
 
 #define outrip (*windowprocs.win_outrip)
 #define preference_update (*windowprocs.win_preference_update)
+#define getmsghistory (*windowprocs.win_getmsghistory)
+#define putmsghistory (*windowprocs.win_putmsghistory)
 
 /*
  * WINCAP