[ python-Bugs-1467450 ] test_ctypes fails on OSX 10.3

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Bugs item #1467450, was opened at 2006-04-10 03:21
Message generated for change (Comment added) made by theller
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Category: Python Library
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Submitted By: Anthony Baxter (anthonybaxter)
Assigned to: Thomas Heller (theller)
Summary: test_ctypes fails on OSX 10.3

Initial Comment:
test test_ctypes failed -- Traceback (most recent call
last):
  File
"/Users/anthonybaxter/python/Lib/ctypes/test/test_loading.py",
line 30, in test_load
    cdll.load(libc_name)
  File
"/Users/anthonybaxter/python/Lib/ctypes/_loader.py",
line 112, in load
    return self._load(libname, mode)
  File
"/Users/anthonybaxter/python/Lib/ctypes/_loader.py",
line 153, in _load
    return self.load_library(pathname, mode)
  File
"/Users/anthonybaxter/python/Lib/ctypes/_loader.py",
line 124, in load_library
    return self._dlltype(libname, mode)
  File
"/Users/anthonybaxter/python/Lib/ctypes/__init__.py",
line 288, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: dlcompat: unable to open this file with RTLD_LOCAL

This happens both with and without the patch in r43748.

Darwin sam.local 7.9.0 Darwin Kernel Version 7.9.0: Wed
Mar 30 20:11:17 PST 2005;
root:xnu/xnu-517.12.7.obj~1/RELEASE_PPC  Power
Macintosh powerpc

GCC version:
Reading specs from /usr/libexec/gcc/darwin/ppc/3.3/specs
Thread model: posix
gcc version 3.3 20030304 (Apple Computer, Inc. build 1640)


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>Comment By: Thomas Heller (theller)
Date: 2006-07-10 10:13

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Here is a patch that I hope will fix this problem.  Ronald
Oussuren suggested in private email to use RTLD_GLOBAL as
default library loading mode on OS X 10.3.  He suggested to
use the platform module to find out the osx version, however
I don't like.  Instead I found by examining platform that
gestalt.gestalt("sysv") returns the information I need.

I still don't have access to 10.3 (and Python does not
compile on the 10.2.8 sourceforge osx compile farm machine -
should I add a bug for that one?), so I cannot really test
the patch myself.

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Comment By: Neal Norwitz (nnorwitz)
Date: 2006-07-10 06:14

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Anthony is this still a problem?

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Comment By: Thomas Heller (theller)
Date: 2006-05-09 20:38

Message:
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Does this failure still occur with Python 2.5a2, or the
current SVN trunk?

----------------------------------------------------------------------

Comment By: Thomas Heller (theller)
Date: 2006-04-13 08:59

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I'm trying to get a copy of OS X 10.3, then will try to
install it and look after this problem.
OTOH, the ctypes loading code is currently rewritten in the
upstream version - this will probably prevent this failure.

In the meantime, can you try to find out the cause of this
failure?  Would RTLD_GLOBAL instead of RTLD_LOCAL work? Is
the library file missing?

----------------------------------------------------------------------

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https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1467450&group_id=5470