diff -Naur gnu.orig/getopt/buildx.xml gnu/getopt/buildx.xml
--- gnu.orig/getopt/buildx.xml	2002-01-17 01:28:02.000000000 +0100
+++ gnu/getopt/buildx.xml	2006-09-25 15:42:07.000000000 +0200
@@ -35,7 +35,7 @@
   <!-- Build classes -->
   <target name="classes" depends="prepare">
     <javac srcdir="${src}" destdir="${build.classes}" debug="off" 
-optimize="on"/>
+           optimize="on" source="8" target="8"/>
     <copy todir="${build.classes}">
       <fileset dir="${src}">
         <include name="**/*.properties"/>