Hello,
so here is a "conservative" version that I would consider a candidate
for release.

 - the "magic" constants are now those that Rich proposed to the glibc
   people. As a consequence many C thread wrappers are no tail calls
   to the POSIX functions but consist in a switch statement that
   translates the error conventions from POSIX to C.

 - this is directly based on the POSIX control structures. Since now
   these use private futexes properly, there is no emergency to
   implement C control structures seperately

 - the biggest code change is for pthread_create.c. Most common code
   has moved to a new TU pthread_exit.c. pthread_create and
   thread_create are implemented in two different TU.

 - a lot of minor changes to avoid dragging in symbols in the wrong
   namespaces.


Jens

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