Build jclasslib from source using Ant. xpf-rm is used to modify the build.xml file in one that actually works.

svn path=/nixpkgs/trunk/; revision=1309

pkgs/development/tools/java/jclasslib/builder.sh

@@ -1,9 +1,16 @@
 . $stdenv/setup || exit 1
 
 tar zxf $src || exit 1
-mkdir -p $out/bin
-mv jclasslib/bin/jclasslib.jar $out/bin/ || exit 1
+cd jclasslib || exit 1
 
+xpf-rm -i build.xml "//taskdef" > build.new
+mv build.new build.xml
+
+ant clean || exit 1
+ant jar || exit 1
+
+mkdir -p $out/bin
+mv build/jclasslib.jar $out/bin/ || exit 1
 
 cat >> $out/bin/jclasslib <<EOF
 #! /bin/sh