anchor.diff:        #define jplatform  "${platform}"
         #define jtype      "${jtype}"         // release,beta,...
         #define jlicense   "GPL3"
  -      #define jbuilder   "unknown"  // website or email
  +      #define jbuilder   "nixpkgs"  // website or email
         ' > ../jsrc/jversion.h
   
       ./build_jconsole.sh j${bits}
  
positive.code: 
    meta = with stdenv.lib; {
      description = "J programming language, an ASCII-based APL successor";
      maintainers = with maintainers; [ raskin ];
      platforms = platforms.linux;
      license = licenses.gpl3Plus;
      homepage = http://jsoftware.com/;
    };
  
negative.code: 
      # Now run the real tests
      cd $SOURCE_DIR/test
      for f in *.ijs
      do
        echo $f
        $JBIN/jconsole < $f > /dev/null || echo FAIL && echo PASS
      done
    '';
  
    installPhase = ''
      mkdir -p "$out"
      cp -r $JBIN "$out/bin"
      rm $out/bin/*.txt # Remove logs from the bin folder
  
      mkdir -p "$out/share/j"
      cp -r $JLIB/{addons,system} "$out/share/j"
  