ttsnoop: resolve some compiler warnings

cde/programs/ttsnoop/callbackChooser_stubs.C.src

@@ -21,6 +21,7 @@
  *  ** DELETE THE GENERATED COMMENTS!                                 **
  */
 
+#include <stdlib.h>
 #include <stdio.h>
 #include <Xm/Xm.h>
 #include "dtb_utils.h"
@@ -76,7 +77,7 @@ _DtTtMsgCbChooserSet(
 			instance, dtb_ttsnoop_ttsnoop_win.ttsnoopWin );
 	}
 	XtVaSetValues( instance->callbackChooser, XmNtitle, title, NULL );
-	XtPointer xtPtr = (XtPointer)isMessage;
+	XtPointer xtPtr = (XtPointer) (intptr_t) isMessage;
 	XtVaSetValues( instance->callbackAddButton, XmNuserData, xtPtr, NULL );
 	XtVaSetValues( instance->callbackAddCancelButton,
 		       XmNuserData, entity, NULL );