Commits
Antoine Pitrou authored d4414f605bf
ARROW-6012: [C++] Fall back on known Apache mirror for Thrift downloads Needed to fix AppVeyor builds Closes #4924 from pitrou/ARROW-6012-apache-mirror and squashes the following commits: cc7f20b7f <Antoine Pitrou> ARROW-6012: Fall back on known Apache mirror for Thrift downloads Authored-by: Antoine Pitrou <antoine@python.org> Signed-off-by: Antoine Pitrou <antoine@python.org>