Fix redisplay bugs due to uninitialized glyphs in frame glyph pool.

 dispnew.c (realloc_glyph_pool): Zero out newly allocated glyphs.
 msdos.c (IT_display_cursor): Log cursor position on termscript.
 .gdbinit (pgx): Display the avoid_cursor_p flag.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/msdos.c b/src/msdos.c
index dda24cc868f..fefefd9147c 100644
--- a/src/msdos.c
+++ b/src/msdos.c
@@ -1593,14 +1593,16 @@ IT_display_cursor (int on)
       ScreenSetCursor (current_pos_Y, current_pos_X);
       cursor_cleared = 0;
       if (tty->termscript)
-        fprintf (tty->termscript, "\nCURSOR ON");
+        fprintf (tty->termscript, "\nCURSOR ON (%dx%d)",
+                 current_pos_Y, current_pos_X);
     }
   else if (!on && !cursor_cleared)
     {
       ScreenSetCursor (-1, -1);
       cursor_cleared = 1;
       if (tty->termscript)
-        fprintf (tty->termscript, "\nCURSOR OFF");
+        fprintf (tty->termscript, "\nCURSOR OFF (%dx%d)",
+                 current_pos_Y, current_pos_X);
     }
 }