anchor.diff: -{ stdenv, fetchurl, cmake, ncurses, zlib, xz, lzo, lz4, bzip2, snappy
  -, openssl, pcre, boost, judy, bison, libxml2, ninja
  -, libaio, libevent, groff, jemalloc, cracklib, systemd_lib, numactl, perl
  +{ 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
   }:
   
  -with stdenv.lib;
   stdenv.mkDerivation rec {
     name = "mariadb-${version}";
  -  version = "10.1.14";
  +  version = "10.1.15";
   
     src = fetchurl {
       urls = map (n: "${n}/${name}/source/${name}.tar.gz") [
  
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: 
    meta = with stdenv.lib; {
      description = "An enhanced, drop-in replacement for MySQL";
      homepage = https://mariadb.org/;
      license = licenses.gpl2;
      maintainers = with maintainers; [
        wkennington
      ];
      platforms = with platforms;
        x86_64-linux;
    };
  }
  