track only releases

ocaml-gtk/ocaml-gtk.spec

@@ -74,7 +74,7 @@ AutoReqProv:  no
     prog ocaml-gtk = {
         version   = %{version}
         url       = http://wwwfun.kurims.kyoto-u.ac.jp/soft/olabl/dist/
-        regex     = lablgtk-(__VER__)\.tar\.gz
+        regex     = lablgtk-(\d+\.\d+(\.\d+)+)\.tar\.gz
     }
 
 %prep