that it is called as soon as libpthread.so is loaded even if pthread_create
is never called.
This ensures that pthread_exit will work correctly, and I think will also
cure the famous memory leak in the pthread specifics for the main thread.
CCMAIL: 86730-done@bugs.kde.org
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2584
