I still have some trouble with posix semaphores in libpthread.
Calling sem_wait when no thread has been created triggers this:

assertion "next != 0" failed: file "/home/src/netbsd-current/lib/libpthread/pthread_run.c", line 118, function "pthread__next"

Shoud I send-pr?
Or am I wrong in trying do to this?
Or is it a known issue :) ?