anchor.diff:        stdenv.lib.maintainers.marcweber
         stdenv.lib.maintainers.andres
       ];
  -    platforms = stdenv.lib.platforms.linux;
  +    platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.darwin;
     };
   
   }
  
positive.code:     sha256 = "f0551f1af2f008a8a14a888b70c0557e00dd04f9ae309ac91897306cd04a6668";
    };
  
    buildInputs = [ghc perl gmp ncurses];
  
    buildMK = ''
      libraries/integer-gmp_CONFIGURE_OPTS += --configure-option=--with-gmp-libraries="${gmp}/lib"
  
negative.code: {stdenv, fetchurl, ghc, perl, gmp, ncurses, darwinInstallNameToolUtility}:
  
  stdenv.mkDerivation rec {
    version = "7.0.2";
  