anchor.diff:    && xorg.libXext != null
     && xorg.libXt != null;
   
  -with stdenv.lib;
   stdenv.mkDerivation rec {
     name = "imagemagick-${version}";
  -  # Use stable patch releases, e.g. -9 or -10
  -  version = "7.0.1-10";
   
     src = fetchurl {
       urls = map (n: "${n}/ImageMagick-${version}.tar.xz") [
  
positive.code: 
    passthru = {
      srcVerification = fetchurl {
        failEarly = true;
        pgpsigUrls = map (n: "${n}.asc") src.urls;
        pgpKeyFingerprint = "D827 2EF5 1DA2 23E4 D05B  4669 89AB 63D4 8277 377A";
        inherit (src) urls outputHash outputHashAlgo;
      };
    };
  
  
negative.code:       "mirror://imagemagick"
      ];
      allowHashOutput = false;
      sha256 = "dad306bfd7730e1665c6fdb6eb478fb2c41e2db71ab56451bbaebe9df546b1d2";
    };
  
    buildInputs = [
  