anchor.diff:        Catena, Lyra2, Makwa and yescrypt were given special recognition. The PHC
         recommends using Argon2 rather than legacy algorithms.
       '';
  -    homepage = https://www.argon2.com/;
  +    homepage = "https://www.argon2.com/";
       license = with licenses; [ asl20 cc0 ];
       maintainers = with maintainers; [ taeer olynch ];
       platforms = platforms.linux ++ platforms.darwin;
  
positive.code: { stdenv, fetchFromGitHub }:
  
  stdenv.mkDerivation rec {
    name = "libargon2-${version}";
    version = "20171227";
  
    src = fetchFromGitHub {
      owner = "P-H-C";
      repo = "phc-winner-argon2";
      rev = "${version}";
      sha256 = "0sc9zca1anqk41017vjpas4kxi4cbn0zvicv8vj8p2sb2gy94bh8";
    };
  
    installPhase = ''
  
negative.code:       --replace @HOST_MULTIARCH@ ""                         \
        --replace 'prefix=/usr' "prefix=$out"
  
      make install PREFIX=$out LIBRARY_REL=lib
      ln -s $out/lib/libargon2.so $out/lib/libargon2.so.0
      runHook postInstall
    '';
  