description: fix casting to pointer of different size 
author: Michael Gilbert <michael.s.gilbert@gmail.com>

--- a/xpdf/XPDFViewer.cc
+++ b/xpdf/XPDFViewer.cc
@@ -1833,7 +1833,7 @@
     n = 0;
     s = XmStringCreateLocalized((char*)zoomMenuInfo[i].label);
     XtSetArg(args[n], XmNlabelString, s); ++n;
-    XtSetArg(args[n], XmNuserData, (XtPointer)i); ++n;
+    XtSetArg(args[n], XmNuserData, i); ++n;
     sprintf(buf, "zoom%d", i);
     btn = XmCreatePushButton(menuPane, buf, args, n);
     XmStringFree(s);