[Boost-build] MacOSX universal builds implemented in BBv2.

From: Rene Rivera (grafikrobot_at_[hidden])
Date: 2007-12-02 15:22:20

After some back and forth between Mat and myself we have the basic 
universal builds working 
<http://svn.boost.org/trac/boost/changeset/41592>. This is just a first 
attempt at this so expect universal builds to be more smoothly supported 
in the future. But not the near future as we have to get 1.35 out the 
door ;-)

Note that this may cause some ripples in testing results. So watch out 
for any new errors and point them out ASAP. Preferably by posting a bug 
in trac.

Mat: I had to remove the hidden visibility options as Boost code is not 
prepared for that.

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