anchor.diff:  
     meta = with stdenv.lib; {
       description = "An enhanced, drop-in replacement for MySQL";
  -    homepage    = https://mariadb.org/;
  -    license     = stdenv.lib.licenses.gpl2;
  -    maintainers = with stdenv.lib.maintainers; [ thoughtpolice wkennington ];
  -    platforms   = stdenv.lib.platforms.all;
  +    homepage = https://mariadb.org/;
  +    license = licenses.gpl2;
  +    maintainers = with maintainers; [
  +      wkennington
  +    ];
  +    platforms = with platforms;
  +      x86_64-linux;
     };
   }
  
positive.code:       "http://mirror.jmu.edu/pub/mariadb"
      ];
      allowHashOutput = false;
      sha256 = "18e71974a059a268a3f28281599607344d548714ade823d575576121f76ada13";
    };
  
    nativeBuildInputs = [
      cmake
      ninja
    ];
    buildInputs = [
      ncurses openssl zlib xz lzo lz4 bzip2 snappy
      pcre libxml2 boost judy bison libevent cracklib
      jemalloc libaio systemd_lib numactl
    ];
  
    cmakeFlags = [
  
negative.code: { stdenv
  , cmake
  , fetchurl
  , ninja
  
  , ncurses
  , zlib
  , xz
  , lzo
  , lz4
  , bzip2
  , snappy
  , openssl
  , pcre
  , boost
  , judy
  , bison
  , libxml2
  , libaio
  , libevent
  , groff
  , jemalloc
  , cracklib
  , systemd_lib
  , numactl
  , perl
  }:
  
  stdenv.mkDerivation rec {
    name = "mariadb-${version}";
    version = "10.1.15";
  
    src = fetchurl {
      urls = map (n: "${n}/${name}/source/${name}.tar.gz") [
  