anchor.diff:      # Fix the mysql_config
       sed -i $out/bin/mysql_config \
         -e 's,-lz,-L${zlib}/lib -lz,g' \
  -      -e 's,-lssl,-L${openssl}/lib -lssl,g'
  +      -e 's,-lssl,-L${openssl_1-0-2}/lib -lssl,g'
   
       # Don't install static libraries.
       rm $out/lib/*.a
  
positive.code: { stdenv, fetchurl, cmake, ncurses, zlib, xz, lzo, lz4, bzip2, snappy
  , openssl, pcre, boost, judy, bison, libxml2, ninja, kytea, msgpack-c
  , libaio, libevent, groff, jemalloc, cracklib, systemd_lib, numactl, perl
  , zeromq
  }:
  
negative.code:     ninja
    ];
    buildInputs = [
      ncurses openssl_1-0-2 zlib xz lzo lz4 bzip2 snappy
      pcre libxml2 boost judy bison libevent cracklib
      jemalloc libaio systemd_lib numactl kytea msgpack-c
      zeromq
  