I am observing strange things while linking boost::thread on a linux system with gcc 3.4.6.

If I link an app with -L[path to boost.thread] -lboost_thread-gcc34-mt then it links fine.

If I link with [path to boost.thread]/libboost_thread-gcc34-mt-1_36.a then I get linker errors with unresolved externals to things like: pthread_mutexattr_init pthread_detach pthread_getspecific

I suspect it has to do with dynamic vs. static libraries. I have two flavors built: libboost_thread-gcc34-mt-1_36.so.1.36.0 libboost_signals-gcc34-mt-1_36.a

So I suspect that in the first case I am getting a dll while in the second case the static link fails for some reason. Any suggestions/ tips to get the static link to work?

Add -pthread to the list of compiler flags. -- Nikolai