[Boost-users] [thread] Can't compile once.cpp for ppc in 1.54

Subject: [Boost-users] [thread] Can't compile once.cpp for ppc in 1.54
From: James Walker (jamesw_at_[hidden])
Date: 2013-07-23 19:24:58

Attempting to build the 1.54.0 version of the thread library for ppc on 
Mac OS X 10.6.8, using Apple's GCC 4.0, I get this error:

boost_1_54_0/boost/atomic/detail/gcc-ppc.hpp: In member function 'bool 
boost::atomics::detail::base_atomic<T, int, 4u, 
Sign>::compare_exchange_strong(T&, T, boost::memory_order, 
boost::memory_order) volatile [with T = unsigned int, bool Sign = false]':
/Volumes/Home/Mercurial/boost_1_54_0/boost/atomic/detail/gcc-ppc.hpp:1190: 
error: impossible constraint in 'asm'

If I use GCC 4.2, I don't get the error.  But I'm hesitant to use that 
compiler, because it usually produces code that won't run on G3's.
-- 
   James W. Walker, Innoventive Software LLC
   <http://www.frameforge3d.com/>