[boost] Re: GCC 3.4 lpthread warnings

From: Vladimir Prus (ghost_at_[hidden])
Date: 2004-06-30 05:40:25

John Maddock wrote:

> We have a problem with gcc: thread support gets forced on in order to be
> consistent with libstdc++ (long story), and there was a user-request for a
> helpful message so that users would know that they *may* end up
> needing -lpthread.

BTW, I was told that if boost/config.hpp is included before any system
headers, it will still be able to use _REENTRANT to detect if -pthread was
specified on the command line.

> My gut feeling is to just take the warning out for this release, longer
> term: Vladimir is there any macro that gets defined by the bjam build
> process, something like BOOST_BJAM_BUILD, so the code knows when it's
> being
> built by the bjam test system?  Any other helpful suggestions welcomed....

No, I don't know any. How would that help? 
I'm not sure if such macro can be easily added in Boost.Build v1. In V2 it's
one-line change to top-level Jamfile, so I hope V2 will be ready to replace
V1 after we've done with the release.

- Volodya