(clear_mouse_face): Treat tip_frame as a Lisp_Object.

diff --git a/src/xterm.c b/src/xterm.c
index c0cfa0cb8dfb4ef28a7003b59e02ad6d6d774180..6d6c18bcfd267c6017b83fd5a80f03a7e1a465a1 100644 (file)
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -7290,7 +7290,7 @@ void
 clear_mouse_face (dpyinfo)
      struct x_display_info *dpyinfo;
 {
-  if (tip_frame)
+  if (!NILP (tip_frame))
     return;
   
   if (! NILP (dpyinfo->mouse_face_window))