Re: [patch] Re: Disable -lmcheck when Python has threads (Re: [BUG] gdb crash when "python import gtk")

[Jan Kratochvil <jan dot kratochvil at redhat dot com>]

Hi David,

On Thu, 30 Aug 2012 20:58:21 +0200, Khoo Yit Phang wrote:
> On Aug 30, 2012, at 2:21 PM, Jan Kratochvil wrote:
> > On Thu, 30 Aug 2012 20:05:01 +0200, Khoo Yit Phang wrote:
> >> 1) I reverted python-config.py and used a different method to test for
> >> threads ("python -m threading");
> > 
> > Unfortunately it does not work for me with python-2.7, only with python-3.3,
> > tested on Fedora 18 x86_64:
> > 
> > $ python3 -m threading;echo $?
> > 0
> > $ python3 -m threadin;echo $?
> > /usr/bin/python3: No module named threadin
> > 1
> > 
> > but:
> > 
> > $ python2 -m threading;echo $?
> > Traceback (most recent call last):
> >  File "/usr/lib64/python2.7/runpy.py", line 162, in _run_module_as_main
> >    "__main__", fname, loader, pkg_name)
> >  File "/usr/lib64/python2.7/runpy.py", line 72, in _run_code
> >    exec code in run_globals
> >  File "/usr/lib64/python2.7/threading.py", line 985, in <module>
> >    _test()
> >  File "/usr/lib64/python2.7/threading.py", line 969, in _test
> >    Q = BoundedQueue(QL)
> >  File "/usr/lib64/python2.7/threading.py", line 912, in __init__
> >    self.queue = deque()
> > NameError: global name 'deque' is not defined
> > 255
> > 
> > python3-3.3.0-0.3.b2.fc18.x86_64
> > python-2.7.3-13.fc18.x86_64
> > 
> > GDB moveover currently is not compatible with python3.x at all.
> > 
> > I do not know much Python but I would guess thread-less Pythons are rare,
> > aren't they?  There would be also a possibility to assume Python is threaded,
> > if one already links with Python.
> 
> That's strange, it works for me under Ubuntu 11.04 with Python 2.7.1 and
> RHEL5 with Python 2.6.6. I suppose it would be easier to just assume Python
> is threaded, this new patch does that.

On RHEL-5.8 I have python-2.4.3-46.el5 (not Python 2.6.6) although I can
confirm it works there:

$ python -m threading; echo $?
Producer-1.1
[...]
Producer-3.5
0


> I'll check it in if it looks alright.

Please wait till Python experts will comment it.


Thanks,
Jan