- see http://darwinbuild.macosforge.org/trac/ticket/109, must use xcodebuild instead of make, at least on snow leopard
- xcode seems to use cc even for c++ files, which doesn't work, so just removing CC and LD from the environment
Signed-off-by: Adam Vandenberg <flangy@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.
