In article <[EMAIL PROTECTED]>, John Maddock wrote: >> Any thoughts on more explicitly documenting the #defines used to toggle > optional >> features in header-only boost modules? > > What where you thinking of other than that already in > www.boost.org/libs/config/config.htm
I was thinking of a view from the point of view of each individual library. e.g., the shared_ptr docs mention what to define to turn off thread support on a boost that was configured with thread support on, but I didn't see a specific explanation of what to define to turn thread support on without Boost Config. >> Boost Config seems to hide those details fairly effectively for developers >> who don't distribute their code (or distribute Boost along with their > code). >> >> The problem I see is that developers who distribute code that depends on >> boost can't count on the user's version of Boost being configured in any >> particular way (or at all - the docs suggest just untarring it as a valid >> way to use the header-only modules). > > There shouldn't really be any difference between the config after just > extracting the tarball, and after running configure. Maybe I'm missing something - when I run boost/libs/config/configure, it adds #defines to user.hpp. Presumably Boost Config does something similar, correct? < // options added by configure: < // < #define BOOST_MSVC6_MEMBER_TEMPLATES < #define BOOST_HAS_UNISTD_H < #define BOOST_HAS_STDINT_H < #define BOOST_HAS_SIGACTION < #define BOOST_HAS_SCHED_YIELD < #define BOOST_HAS_PTHREADS < #define BOOST_HAS_PTHREAD_YIELD < #define BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE < #define BOOST_HAS_PARTIAL_STD_ALLOCATOR < #define BOOST_HAS_NRVO < #define BOOST_HAS_NL_TYPES_H < #define BOOST_HAS_NANOSLEEP < #define BOOST_HAS_LONG_LONG < #define BOOST_HAS_GETTIMEOFDAY < #define BOOST_HAS_DIRENT_H < #define BOOST_HAS_CLOCK_GETTIME If these defines were just for boost implementation details/optimization it wouldn't concern me, but it seems as though in some cases they change the way Boost will interact with my program (e.g., shared_ptr and thread safety). Steve _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
