From 6f8d9b52358c16bef870a53ace4360d43c7978d5 Mon Sep 17 00:00:00 2001
From: Jacek Caban <jacek@codeweavers.com>
Date: Fri, 9 Sep 2011 15:07:22 +0200
Subject: [PATCH] Bug 680868 - pldhash.cpp fails to compile on mingw-w64
 r=benjamin

---
 xpcom/glue/pldhash.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xpcom/glue/pldhash.cpp b/xpcom/glue/pldhash.cpp
index eea85264a2c..774c38e97f6 100644
--- a/xpcom/glue/pldhash.cpp
+++ b/xpcom/glue/pldhash.cpp
@@ -135,7 +135,7 @@ PL_DHashStringKey(PLDHashTable *table, const void *key)
 PLDHashNumber
 PL_DHashVoidPtrKeyStub(PLDHashTable *table, const void *key)
 {
-    return (PLDHashNumber)(unsigned long)key >> 2;
+    return (PLDHashNumber)(PRPtrdiff)key >> 2;
 }
 
 PRBool