--- hopm/trunk/configure	2014/12/25 18:51:51	5135
+++ hopm/trunk/configure	2014/12/26 14:11:07	5145
@@ -13394,6 +13394,7 @@ DEFS=-DHAVE_CONFIG_H
 
 ac_libobjs=
 ac_ltlibobjs=
+U=
 for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
   # 1. Remove the extension, and $U if already installed.
   ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'