arash nouri - 2008-07-01

i am using fedora 8 and when I try to use 'MAKE' instruction in installing rcssserver3d procedure I get an error that ends with

lboost_thread-mt -Wl,--rpath -Wl,/usr/local/lib/rcssserver3d
../../lib/zeitgeist/.libs/libzeitgeist_debug.so: undefined reference to `pthread_atfork'

what is "pthread_atfork" ? and what can i do with this problem?