anchor.diff:      lzo
       xz
       zlib
  +    zstd
     ];
   
     prePatch = ''
  
positive.code: , lzo
  , xz
  , zlib
  }:
  
  stdenv.mkDerivation rec {
    name = "squashfs-4.4dev";
  
    src = fetchFromGitHub {
      version = 1;
      owner = "plougher";
      repo = "squashfs-tools";
      rev = "9c1db6d13a51a2e009f0027ef336ce03624eac0d";
      sha256 = "fea7782f4a37c9bac657fec97426c28910903b0bb6800cd4fdaf849adce02716";
    };
  
    buildInputs = [
  
negative.code:     "XZ_SUPPORT=1"
      "LZO_SUPPORT=1"
      "LZ4_SUPPORT=1"
      "ZSTD_SUPPORT=1"
    ];
  
    meta = with stdenv.lib; {
  