[boost] [Thread] Wave segfaults at application cleanup in thread library

Hi all, Since a couple of days (2-3 days) the Wave tests started to fail because of a crash during application cleanup in the thread library (msvc-8, gcc3.4.5/Mingw - this problem seems to be constrained to the windows platform). The point of the segfault is here: boost/thread/win32/tss.hpp:+30, void cleanup(T* data) const { if(func) { func(data); // <-- here } else { delete data; } } Where data is a valid pointer, but func points somewhere. No code changes have been done lately in Wave (or in Spirit/Phoenix for that matter, because the tss is used in Spirit code). Any clues what might be the reason? Regards Hartmut