On 07/01/2013 12:25 PM, Peter Maydell wrote: > Does any OS have a __thread which compiles but is broken, or can > we just have a configure test for this? That would let MacOSX+clang > use __thread.
I suspect that this will work. Some targets may succeed in using gcc's "emutls" path, which while slower than TLS is pretty much exactly the pthread get/setcontext fallback that's been proposed elsewhere on this list. r~
