Ensure we always set sizeof_bool #681
Merged
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When building --no-ompi, we don't run setup_cxx and hence sizeof_bool never gets set. So set it in configure.ac so everyone always has it
Check for sizeof(_Bool) so we don't need the C++ compiler
@jsquyres This should make you happy! We may also need this in 2.x as I think (but don't clearly recall) we moved the stdbool.h changes over there.