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.
Soprano (formerly known as QRDF) is a library which provides a highly usable
object-oriented C++/Qt4 framework for RDF data. It uses different RDF storage
solutions as backends through a simple plugin system. Soprano is targetted at
desktop applications that need a RDF data storage solution. It has been optimized
for easy usage and simplicity.