libpth20 - 2.0.7-20+b2 main

Pth is a very portable POSIX/ANSI-C based library for Unix platforms which
provides non-preemptive priority-based scheduling for multiple threads of
execution ("multithreading") inside server applications. All threads run
in the same address space of the server application, but each thread has
its own individual program-counter, run-time stack, signal mask and errno
variable.