> I don't think that we can work around this by defining > _XOPEN_SOURCE in the > boost headers: it would imply that the boost headers would have to be > included before any other header, or nasty things will happen :-( > > I guess we could check for the _XOPEN_SOURCE value in > posix_features.hpp as > well as for _XOPEN_VERSION, maybe this is the right thing to > do for all > Unixes, I don't know, anyone any ideas? > > John Maddock > http://ourworld.compuserve.com/homepages/john_maddock/index.htm
Thanks for the feedback John, I agree that posix_features.h is the logical place to put this, although it would still have to be conditionalised for linux and for gcc < version 3. Providing it can be ensured that boost/config.hpp is included before pthread.h then something along the lines of #if defined(__linux) || defined(__linux__) || defined(linux) #if defined(__GNUC__) && (__GNUC__ < 3) #define _XOPEN_SOURCE 500 #define __USE_UNIX98 1 #define __USE_XOPEN_EXTENDED 1 #endif should do the trick, as it's basically duplicating what's already in features.h if _XOPEN_SOURCE is defined; although it's a rather unlovely way of getting around this. Seeing as this needs to be constrained to linux and to a specific version of gcc we shouldn't have any issues with other flavours of *nix being affected although views from users of other Linux distros, such as Mandrake, SUSE and Debian to name but a few, would be welcome at this point. Gary _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
