id summary reporter owner description type status milestone component version severity resolution keywords cc 3351 icc 11.0 knows about __sync_lock_test_and_set andyc@… Peter Dimov "The attached patch allows the use of __sync_lock_test_and_set by boost/smart_ptr/detail/spinlock.hpp. " Bugs closed Boost 1.40.0 smart_ptr Boost 1.39.0 Problem fixed