anchor.diff:  , fetchurl
   
   , expat
  +, fstrm
   , libevent
   , openssl
  +, protobuf-c
   }:
   
   stdenv.mkDerivation rec {
  
positive.code:     "--sysconfdir=/etc"
      "--enable-pie"
      "--enable-relro-now"
    ];
  
    preInstall = ''
  
negative.code: 
    buildInputs = [
      expat
      fstrm
      libevent
      openssl
      protobuf-c
    ];
  
    configureFlags = [
  