source_subfolder/xpath.c: In function ‘xmlXPathCastNumberToString__internal_alias’:
source_subfolder/xpath.c:3234:7: warning: array subscript is above array bounds [-Warray-bounds]
   work[buffersize - 1] = 0;
   ~~~~^~~~~~~~~~~~~~~~
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: Download failed, check server, possibly try again
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 0x7f64c3abc490>: Failed to establish a new connection: [Errno 111] Connection refused'))'