anchor.diff:      "--with-http_realip_module"
       "--with-http_addition_module"
       "--with-http_xslt_module"
  -    "--with-http_geoip_module"
       "--with-http_sub_module"
       "--with-http_dav_module"
       "--with-http_flv_module"
  
positive.code:     "--with-debug"
    ] ++ optionals withStream [
      "--with-stream"
      "--with-stream_geoip_module"
      "--with-stream_realip_module"
      "--with-stream_ssl_module"
      "--with-stream_ssl_preread_module"
  
negative.code: { lib, stdenv, fetchurl, fetchpatch, openssl, zlib, pcre, libxml2, libxslt
  
  , nixosTests
  , substituteAll, gd, geoip, perl
  , withDebug ? false
  