[boost] [serialization] serialization lib not thread safe?

I use boost serialization in multi threaded application. Sometimes application crashed. I manage to avoid bug if I recompile boost serialization with BOOST_SPIRIT_THREADSAFE defined in jam file : http://archive.netbsd.se/?ml=boost-build&a=2008-07&t=8023861 But I would like keep boost default installation. I read multi thread limitations here : http://www.boost.org/doc/libs/1_42_0/libs/serialization/doc/special.html But I don't find how to use singleton to avoid crash, I attach test files to reproduct crash. I use 1.36 in test files, but same bug seems to occure in next release. How can I add singleton from serialization to avoid crash? I try some solutions but failed to find a good implementation. Thanks for help.