[issue1730372] Mesa with NPTL makes Python extensions crash with std::cerr

[R. David Murray]

R. David Murray <rdmurray at bitdance.com> added the comment:

I compiled the referenced test program on Gentoo, where my Mesa library
is compiled with NPTL:

rdmurray at partner:~>equery uses mesa
[ Searching for packages matching mesa... ]
[ Legend : Left column  (U) - USE flags from make.conf              ]
[        : Right column (I) - USE flags packages was installed with ]
[ Found these USE variables for media-libs/mesa-7.3 ]
 U I
 <snip>
 + + nptl

gcc -pthread -fPIC -fno-strict-aliasing -DNDEBUG -g -O3 -Wall
-I/usr/include -I/usr/local/include -I./Include -I. -c spam.cc -o spam.o
gcc -pthread -shared spam.o -L/usr/lib -L/usr/local/lib -Wl,-R/usr/lib
-lGL -o build/lib.linux-i686-2.7/spam.so -lstdc++
rdmurray at partner:~/python/trunk>strings build/lib.linux-i686-2.7/spam.so
|grep -i libgl
libGL.so.1
>./python
Python 2.7a0 (unknown, Mar 29 2009, 16:10:14) 
[GCC 4.1.2 (Gentoo 4.1.2)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import spam
>>> spam.system('ls')
this be cerrzsh: segmentation fault  ./python

Without the '-lGL' it works fine.

Now, is it a bug in Python, or Mesa?

I haven't checked if it is still a problem in py3k since spam.cc
does not compile cleanly under py3k.

----------
nosy: +bitdancer
resolution: works for me -> 
status: pending -> open
versions: +Python 2.7 -Python 2.5

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue1730372>
_______________________________________