> Fixed like so ... > > * include/std/mutex (call_once): Store closure in __once_functor > as bound function wrapper might not be copyable. > > The fix would be simpler but the lambda can't capture the parameter > pack directly because of PR c++/41933. Unfortunately the non-TLS > std::call_once implementation is quite wasteful, creating a function > wrapper, which is captured by a closure, which is stored in a > std::function. IIRC the std::function has to be kept for backwards > compatibility, otherwise we could just store the closure and a pointer > to a function, like the TLS code but using a mutex to serialize calls.
Thanks a lot for the quick fix! -- Eric Botcazou
