pypa/virtualenv — pull request #379 by warsaw (2012-12-24 18:21:27+00:00)
Title: Fix for issue 378

On multiarch-aware Debian/Ubuntu Pythons, plat-${sys.platform} does not point to a valid sys.path entry. Use sys.implementation._multiarch (Python 3.3+), sys._multiarch (Python 2.7) where available, falling back to sys.platform for non-multiarch aware Pythons.

Fixes issue #378