Version bump. Pruned unrecognised configure options, added the head &
added a test.
ClosesHomebrew/homebrew#33836.
Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
It seems that the main GNU download site has issues in some places
outside the U.S., so we'll use the provided "ftpmirror.gnu.org" to pick
a nearby mirror.
Signed-off-by: Jack Nagel <jacknagel@gmail.com>