anchor.diff: -{ stdenv, fetchurl, bind, libseccomp, zlib, openssl }:
  +{ stdenv, fetchurl, bind, libseccomp, zlib, openssl, libcap }:
   
   stdenv.mkDerivation rec {
     name = "dnsperf-${version}";
  
positive.code: 
    outputs = [ "out" "man" "doc" ];
  
    buildInputs = [ bind libseccomp zlib openssl ];
  
    postInstall = ''
      mkdir -p "$out/share/doc/"
  
negative.code:     maintainers = [ maintainers.vcunat ];
    };
  }
  