Java CUP

I had to make a few changes to CUP in order for it to work in my environment. I submitted the patches to Michael Petter, but I don't know if they will be included in his next build. So, here's the patches here in case you have to patch this yourself:

java_cup.anttask.CUPTask.java

111,112c111,117
<       if (!(new File(srcfile)).exists()) throw new BuildException("Input file not found: srcfile=\""+srcfile+"\" ");
<       createArg().setValue(srcfile);
---
>       File file = new File(srcfile);
>       if (!file.exists()) throw new BuildException("Input file not found: srcfile=\""+srcfile+"\" ");
>       try {
>               createArg().setValue(file.getCanonicalPath());
>       } catch (java.io.IOException e) {
>               throw new BuildException("Input file path not found: srcfile=\""+srcfile+"\" ");
>       }
166a172
>       if (path.startsWith("file:/")) path=path.substring(6);

I changed the compile task to build 1.4 class files:

  <target name="compile" depends="jflex">
    <copy todir="${java}"><fileset dir="${src}"></fileset></copy>
    <javac srcdir="${java}" destdir="${classes}" verbose="off" listfiles="off" debug="on" target="1.4" source="1.4">
      <!--compilerarg value="-Xlint:unchecked" /-->
      <classpath refid="libraries"/>
    </javac>
  </target>

Since the code doesn't require 1.5, it might be nice to compile it in a 1.4 compatible format.