anchor.diff:  x@{builderDefsPackage
  +  , zlib
     , curl, gnutls, fribidi, libpng, SDL, SDL_gfx, SDL_image, SDL_mixer
     , SDL_net, SDL_ttf, libunwind, libX11, xproto, libxml2, pkgconfig
     , gettext, intltool, libtool, perl
  
positive.code:     (builtins.attrNames (builtins.removeAttrs x helperArgNames));
    sourceInfo = rec {
      baseName="warmux";
      version="11.01";
      name="${baseName}-${version}";
      url="http://download.gna.org/${baseName}/${name}.tar.bz2";
      hash="1f063yaab08gflh4hnd8clb4as41ayfphi4q0cmi8syjiaap2qgh";
    };
  in
  rec {
  
negative.code: 
    /* doConfigure should be removed if not needed */
    phaseNames = ["doConfigure" "doMakeInstall"];
  
    configureFlags = "CFLAGS=\"-include ${zlib}/include/zlib.h\"";
  
    meta = {
      description = "Ballistics turn-based battle game between teams";
      maintainers = with a.lib.maintainers;
  