source $stdenv/setup || exit 1 tar zxf $src || exit 1 cd jclasslib || exit 1 xpf-rm -f build.xml "//taskdef" ant clean || exit 1 ant jar || exit 1 mkdir -p $out/bin mv build/jclasslib.jar $out/bin/ || exit 1 cat >> $out/bin/jclasslib <