If you apply the multarchi27.diff patch in bug #695958, then this patch to virtualenv will do the trick.
Ignore the earlier two python-virtualenv patches.
=== modified file 'debian/changelog' --- debian/changelog 2012-11-30 15:06:23 +0000 +++ debian/changelog 2012-12-12 19:11:43 +0000 @@ -1,3 +1,10 @@ +python-virtualenv (1.8.4-2) experimental; urgency=low + + * debian/patches/multiarch.patch: Use system multiarch path if available. + Closes: #695707 + + -- Barry Warsaw <ba...@python.org> Wed, 12 Dec 2012 14:10:49 -0500 + python-virtualenv (1.8.4-1) experimental; urgency=low * Team upload. === added file 'debian/patches/multiarch.patch' --- debian/patches/multiarch.patch 1970-01-01 00:00:00 +0000 +++ debian/patches/multiarch.patch 2012-12-17 19:26:03 +0000 @@ -0,0 +1,24 @@ +Description: Use system multiarch path if available. +Author: Barry Warsaw <ba...@python.org> +Bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=695707 +Forwarded: no + +--- a/virtualenv_embedded/site.py ++++ b/virtualenv_embedded/site.py +@@ -584,9 +584,13 @@ + paths.insert(0, lib64_path) + else: + paths.append(lib64_path) +- # This is hardcoded in the Python executable, but relative to sys.prefix: +- plat_path = os.path.join(sys.real_prefix, 'lib', 'python'+sys.version[:3], +- 'plat-%s' % sys.platform) ++ # This is hardcoded in the Python executable, but relative to ++ # sys.prefix. In Python 3.3+ the multiarch triplet lives in (as per ++ # PEP 421) sys.implementation, but in Python 2.7 it lives in sys. ++ multiarch = getattr(sys, 'implementation', sys)._architecture ++ plat_path = os.path.join(sys.real_prefix, 'lib', ++ 'python'+sys.version[:3], ++ 'plat-%s' % multiarch) + if os.path.exists(plat_path): + paths.append(plat_path) + # This is hardcoded in the Python executable, but === modified file 'debian/patches/series' --- debian/patches/series 2012-11-30 15:06:23 +0000 +++ debian/patches/series 2012-12-12 19:10:23 +0000 @@ -2,3 +2,4 @@ use_distribute.patch system-python.patch entry-points.patch +multiarch.patch
