anchor.diff:      "-DINSTALL_MYSQLSHAREDIR=share/mysql"
       "-DINSTALL_DOCDIR=share/mysql/docs"
       "-DINSTALL_SHAREDIR=share/mysql"
  +    "-DWITH_INNODB_SNAPPY=ON"
       "-DWITH_READLINE=ON"
       "-DWITH_ZLIB=system"
       "-DWITH_SSL=system"
  -    #"-DWITH_SSL=bundled"
       "-DWITH_PCRE=system"
       "-DWITH_LIBARCHIVE=ON"
  -    "-DWITH_EMBEDDED_SERVER=yes"
       "-DWITH_EXTRA_CHARSETS=complex"
       "-DWITH_EMBEDDED_SERVER=ON"
       "-DWITH_ARCHIVE_STORAGE_ENGINE=1"
  
positive.code: }:
  
  stdenv.mkDerivation rec {
    name = "mariadb-10.1.23";
  
    src = fetchurl {
      urls = map (n: "${n}/${name}/source/${name}.tar.gz") [
  
negative.code:       "http://mirror.jmu.edu/pub/mariadb"
      ];
      hashOutput = false;
      sha256 = "c385c76e40d6e5f0577eba021805da5f494a30c9ef51884baefe206d5658a2e5";
    };
  
    nativeBuildInputs = [
  