tree 24837f15678f7a4b6aa2fc586d5b862b5671e5b5
parent 93e9f5db34983c65d9c06b0819fc5a85f59096dc
author Mike Frysinger <vapier@google.com> 1446663851 -0500
committer Mike Frysinger <vapier@google.com> 1446750054 -0500

handle external/ libs that we also have ebuilds for

Since we have a bunch of libs already in external/, make sure we stub
out all the ebuilds that duplicate things.  This way we don't build
from two different sources and clobber things in weird ways.

In order for packages to find their headers though, we need to set up
a system include tree for packages that aren't "installed".

BUG=23171578

Change-Id: Ia7f123a6ae799a765eb984524d281b8ba2270696