ar: `u' modifier ignored since `D' is the default (see `U')
ar: `u' modifier ignored since `D' is the default (see `U')
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


ERROR: Error downloading file http://xmlsoft.org/sources/libxml2-2.9.10.tar.gz: 'HTTPConnectionPool(host='xmlsoft.org', port=80): Max retries exceeded with url: /sources/libxml2-2.9.10.tar.gz (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7ff5d58e3dd0>: Failed to establish a new connection: [Errno 111] Connection refused'))'