From 57e8fb13bcd2a96f3d4eb84599dffc8d31cc5be4 Mon Sep 17 00:00:00 2001
From: dgp <dgp@users.sourceforge.net>
Date: Thu, 22 Jan 2015 19:18:52 +0000
Subject: Stop `make test` segfaults.

---
 generic/tkTextDisp.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/generic/tkTextDisp.c b/generic/tkTextDisp.c
index 7422fd1..3c98178 100644
--- a/generic/tkTextDisp.c
+++ b/generic/tkTextDisp.c
@@ -3892,8 +3892,17 @@ RedisplayText(
 {
     register TkText *textPtr = (TkText *) clientData;
     TextDInfo *dInfoPtr = textPtr->dInfoPtr;
-    TkRegion damageRegion = TkCreateRegion();
-    XRectangle rectangle = {0, 0, dInfoPtr->maxX, dInfoPtr->maxY};
+    TkRegion damageRegion;
+    XRectangle rectangle;
+
+    if (dInfoPtr == NULL) {
+	return;
+    }
+    damageRegion = TkCreateRegion();
+    rectangle.x = 0;
+    rectangle.y = 0;
+    rectangle.width = dInfoPtr->maxX;
+    rectangle.height = dInfoPtr->maxY;
     TkUnionRectWithRegion(&rectangle, damageRegion, damageRegion);
 
     TextInvalidateRegion(textPtr, damageRegion);
-- 
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