anchor.diff: -{ stdenv, fetchurl, openssl, zlib, pcre, libxml2, libxslt }:
  +{ stdenv, fetchurl, fetchgit, openssl, zlib, pcre, libxml2, libxslt, expat, fullWebDAV ? false }:
   
   stdenv.mkDerivation rec {
     name = "nginx-1.2.4";
  
positive.code:     sha256 = "0hvcv4lgfcrsl40azkd3rxhf73l05jzzgflclpkdvjd95xgw51y5";
    };
  
    buildInputs = [ openssl zlib pcre libxml2 libxslt ];
  
    configureFlags = [
      "--with-http_ssl_module"
  
negative.code:     "--with-http_secure_link_module"
      # Install destination problems
      # "--with-http_perl_module"
    ] ++ stdenv.lib.optional fullWebDAV "--add-module=${dav-ext}";
  
    preConfigure = ''
      export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -I${libxml2}/include/libxml2"
  