anchor.diff:  
       # http://www.eclipse.org/legal/epl-v10.html (free software, copyleft)
       license = "EPLv1.0";
  +
  +    platforms = stdenv.lib.platforms.linux;
     };
   }
  
positive.code:   buildPhase = "ant build";
  
    installPhase = ''
      mkdir -pv "$out/lib/java"
      cp -v *.jar "$out/lib/java"
  
      mkdir -pv "$out/bin"
      cat > "$out/bin/ecj" <<EOF
  #! /bin/sh
  exec "$(type -P ${javaExec})" ${javaFlags} "$out/lib/java/ecj.jar" org.eclipse.jdt.internal.compiler.batch.Main \$@
  EOF
  
      chmod u+x "$out/bin/ecj"
    '';
  
    meta = {
  
negative.code: { stdenv, fetchurl, unzip, ant, jdk }:
  
  let
    version = "3.7.2";
    date    = "201202080800";
  in
  
  stdenv.mkDerivation rec {
  