Fix gcc 4.0 -Wpointer-sign warnings.
diff --git a/dlls/ole32/bindctx.c b/dlls/ole32/bindctx.c
index 3d19e06..6b427f4 100644
--- a/dlls/ole32/bindctx.c
+++ b/dlls/ole32/bindctx.c
@@ -52,7 +52,7 @@
const IBindCtxVtbl *lpVtbl; /* VTable relative to the IBindCtx interface.*/
- ULONG ref; /* reference counter for this object */
+ LONG ref; /* reference counter for this object */
BindCtxObject* bindCtxTable; /* this is a table in which all bounded objects are stored*/
DWORD bindCtxTableLastIndex; /* first free index in the table */