Upgrade c-ares to version 1.8.0.
Add `--disable-dependency-tracking` and `--disable-debug`
ClosesHomebrew/homebrew#11930.
Signed-off-by: Jack Nagel <jacknagel@gmail.com>
brewkit.rb changes ENV destructively, so lets not do that everytime a formula
is required. Now it's possible for other tools to require a formula
description without worrying about side-effects.