[Patches] [ python-Patches-533681 ] Apply semaphore code to Cygwin

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Patches item #533681, was opened at 2002-03-22 18:20
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Category: Core (C code)
Group: Python 2.2.x
Status: Open
Resolution: None
Priority: 5
Submitted By: Gerald S. Williams (gsw_agere)
Assigned to: Nobody/Anonymous (nobody)
Summary: Apply semaphore code to Cygwin

Initial Comment:
The current version of Cygwin does not define 
_POSIX_SEMAPHORES by default, although requires the 
new semaphore interface since its condition variables 
interface contains a race condition.

This patch simply specifies that semaphores should be 
used if _POSIX_SEMAPHORES OR __CYGWIN__ is defined.


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>Comment By: Martin v. Löwis (loewis)
Date: 2002-03-22 21:03

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-1. Cygwin really ought to define _POSIX_SEMAPHORES if they
support them, so if they support them and don't define the
feature test macro, it is a Cygwin bug. Work-arounds around
platform bugs are generally discourgaged in Python.

On python-dev, you indicate that _POSIX_SEMPAPHORES is only
defined if __rtems__ is also defined. What is the rationale
for that?

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