anchor.diff: -{ stdenv, fetchurl, cmake, bison
  +{ stdenv, fetchurl, cmake, bison, pkgconfig
   , boost, libedit, libevent, lz4, ncurses, openssl, protobuf, readline, zlib, perl
   , cctools, CoreServices, developer_cmds }:
   
  
positive.code: 
  let
  self = stdenv.mkDerivation rec {
    name = "mysql-${version}";
    version = "5.7.25";
  
    src = fetchurl {
      url = "mirror://mysql/MySQL-5.7/${name}.tar.gz";
      sha256 = "0gvjcdnba7nf2dx3fbqk1qyg49zclfvaihb78l8h6qc08di1qxak";
    };
  
    preConfigure = stdenv.lib.optional stdenv.isDarwin ''
  
negative.code:   };
  
    meta = with stdenv.lib; {
      homepage = "https://www.mysql.com/";
      description = "The world's most popular open source database";
      platforms = platforms.unix;
      license = with licenses; [
  