[boost] [config] BOOST_HAS_PTHREADS config test

Hello, I would like to commit attached patch to clear this error: http://tinyurl.com/5ymwv5. OK to commit? Regards, Markus Index: boost_has_pthreads.ipp =================================================================== --- boost_has_pthreads.ipp (revision 44408) +++ boost_has_pthreads.ipp (working copy) @@ -14,7 +14,7 @@ namespace boost_has_pthreads{ -void* thread_proc(void* arg) +extern "C" void* thread_proc(void* arg) { return arg; }