From ec75f9d1a36b6f46e7ec6597d295f113c4aa12b3 Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Wed, 6 Mar 2013 09:56:31 +0000
Subject: [PATCH] Allow lastgc to be NULL in grid_string_cells so find-window
 doesn't crash, problem reported by eugene everson.

---
 grid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/grid.c b/grid.c
index b30127f3..551a7dc9 100644
--- a/grid.c
+++ b/grid.c
@@ -595,7 +595,7 @@ grid_string_cells(struct grid *gd, u_int px, u_int py, u_int nx,
 
 	GRID_DEBUG(gd, "px=%u, py=%u, nx=%u", px, py, nx);
 
-	if (*lastgc == NULL) {
+	if (lastgc != NULL && *lastgc == NULL) {
 		memcpy(&lastgc1, &grid_default_cell, sizeof lastgc1);
 		*lastgc = &lastgc1;
 	}