Chris Marcellino <[EMAIL PROTECTED]> writes:
> I searched through the archives and I can't find a mention of why the  
> posix_sema code was written for Darwin.

Because Darwin didn't have anything else at the time.

> If this is in fact the case, I have a trivial patch to conditionally  
> enable SysV semaphores based on the OS release:

Outta curiosity, can you measure any performance difference?

                        regards, tom lane

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