Re: [Boost-users] "Compiler threading support not turned on" error

From: John Maddock (john_at_[hidden])
Date: 2004-09-28 04:58:19

> OK, it turns out that BOOST_HAS_THREADS *was* getting enabled, but was 
> later getting disabled in suffix.hpp because BOOST_HAS_PTHREADS was not 
> enabled. I believe that it should be enabled by the inclusion of 
> posix_features.hpp, but this is not happening because of this test in 
> macos.hpp:
> #  ifndef TARGET_CARBON
> #     include <boost/config/posix_features.hpp>
> #  endif
> I'm building a Cocoa project in Xcode, which apparently defines 
> TARGET_CARBON for me. Why is posix_features.hpp only included if 
> TARGET_CARBON is not defined? You can use posix from a carbon target just 
> fine. Commenting out the #ifndef so posix_features.hpp is included makes 
> it build and work just fine. Is there some reason for this that I'm not 
> seeing? Is this a bug?

I don't know enough (well anything really!) about MacOS targets, and what is 
and is not correct for them, searching the archives it appears that I added 
this check after a user request: 
http://lists.boost.org/MailArchives/boost-users/msg02664.php.  Obviously we 
need a better way of doing things, so any suggestions welcome...

Thanks,

John.