The headline is misleading. Chris Lattner's post actually just points out that FSF's own copyright-assignment policy may be a blocker:<p><i>"...In practice, since the FSF cares about copyright assignment, this probably means that..."</i><p><a href="http://www.gnu.org/licenses/why-assign.html" rel="nofollow">http://www.gnu.org/licenses/why-assign.html</a>