From 728bd91523be6d828571b4380518d953d8480bcc Mon Sep 17 00:00:00 2001
From: Pietro Gagliardi <pietro10@mac.com>
Date: Sat, 14 Feb 2015 17:31:36 -0500
Subject: [PATCH] Fixed the creation bug (incorrect empty doubly linked list
 handling; see
 http://stackoverflow.com/questions/28520939/how-are-inspect-exe-ui-accessibility-checker-causing-my-program-to-gracefully-re).

---
 wintable/accessibility.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/wintable/accessibility.h b/wintable/accessibility.h
index 77c60ba..c69c9cb 100644
--- a/wintable/accessibility.h
+++ b/wintable/accessibility.h
@@ -441,7 +441,8 @@ printf("new ta %p\n", ta);
 printf("before add:"); list(t);
 #endif
 	ta->next = t->firstAcc;
-	t->firstAcc->prev = ta;
+	if (t->firstAcc != NULL)
+		t->firstAcc->prev = ta;
 	t->firstAcc = ta;
 #ifdef TABLE_DEBUG_LINKEDLIST
 printf("after add:"); list(t);