anchor.diff:  
     cmakeFlags = [
       "-DENABLE_TOOLS=${boolToUpper enableTools}"
  -    "-DEMBEDDED_LIBCURL=${boolToUpper useEmbeddedLibcurl}"
  +    "-DEMBEDDED_LIBCURL=false"
       "-DLIBCURL_BACKEND_BY_DEFAULT=${boolToUpper defaultToLibcurl}"
       "-DENABLE_IPV6=${boolToUpper enableIpv6}"
       "-DENABLE_TCP_NODELAY=${boolToUpper enableTcpNodelay}"
  
positive.code:     libxml2
      boost
      libuuid
    ] ++ lib.optional (defaultToLibcurl && !useEmbeddedLibcurl) curl
    ++ lib.optional (enableThirdPartyCopy) gsoap;
  
    # using the url below since the github release page states
  
negative.code: , curl
  , gsoap
  , enableTools ? true
    # Use libcurl instead of libneon
    # Note that the libneon used is bundled in the project
    # See https://github.com/cern-fts/davix/issues/23
  