[Python-bugs-list] [ python-Bugs-635034 ] Don't define _XOPEN_SOURCE on OpenBSD
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Sat, 09 Nov 2002 12:02:56 -0800
Bugs item #635034, was opened at 2002-11-07 15:57
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Category: Python Library
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Jon Ribbens (jribbens)
Assigned to: Nobody/Anonymous (nobody)
Summary: Don't define _XOPEN_SOURCE on OpenBSD
Initial Comment:
Defining _XOPEN_SOURCE on OpenBSD breaks many
things. For example, it makes the select and time
modules unavailable (*oops*).
I think this is probably a bug in OpenBSD (I have
bugreported it there) but in the absence of the ability to
fix the bug in every OpenBSD installation in the world it
would be nice if Python would detect OpenBSD and not
define _XOPEN_SOURCE.
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>Comment By: Jon Ribbens (jribbens)
Date: 2002-11-09 20:02
Message:
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It would be a great deal of effort to make separate bug reports
(I would have to individually test every Python feature by
hand), and it wouldn't gain anything.
The problem is that OpenBSD is buggy, has been since
version 2.0 and still is in the very latest CVS. For example, if
you define _XOPEN_SOURCE (its value doesn't make any
difference, just if it is defined) then there is absolutely no way
to get the select(), fd_set, etc, they are simply not available
in any header file. You can't use select() in a C program that
#defines _XOPEN_SOURCE.
I don't see why you say there is "no way" to withdraw the
definition of _XOPEN_SOURCE - instead of making the
addition of _XOPEN_SOURCE to the header file
unconditional, simply detect OpenBSD in ./configure and
don't define it in that case. Why is that difficult?
Why is _XOPEN_SOURCE being defined anyway? Because
it breaks everything so badly on OpenBSD, and nobody has
noticed this before, I am suspecting that almost no programs
out there except Python define it. This makes it likely to
break things on many different platforms.
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Comment By: Martin v. Löwis (loewis)
Date: 2002-11-09 19:09
Message:
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You need to provide more details. For the moment, I see *no
way* to withdraw the definition of _XOPEN_SOURCE, not even
for OpenBSD.
Please make separate bug reports for each issue, perhaps
starting with the select module. Why is it unavailable?
select *is* a feature of POSIX, after all (as is poll).
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