[Python-Dev] Building against system expat

[Bohuslav Kabrda]

----- Original Message -----
> On 25.04.2012 15:42, Bohuslav Kabrda wrote:
> > Hi, I'm trying to build Python 3.2.3 against system expat library,
> > that lies
> > out of the ordinary directory structure (under /opt). I also have
> > an older
> > version of expat library in the system. No matter what shell
> > variables or
> > options I pass to configure and make, pyexpat gets linked against
> > the system
> > expat, which results in errors during tests:
> > 
> > pyexpat.cpython-32dmu.so: undefined symbol: XML_SetHashSalt
> > 
> > anyone has any idea what to pass to configure/make to link pyexpat
> > with the
> > other expat?
> 
> You'll have to upgrade your expat.  The XML_SetHashSalt is new in
> 2.1.0 and
> makes it possible to avoid an algorithmic complexity attack; Python
> uses it
> in its newest bugfix releases.  See for example
> <http://bugs.python.org/issue14234>.
> 
> cheers,
> Georg
> 

Thanks, actually I found an error in my build script that set the LD_LIBRARY_PATH wrongly, so only the standard .so file was found (that didn't have this symbol), and not the one under /opt.

So, my mistake,
thanks everyone :)

-- 
Regards,
Bohuslav "Slavek" Kabrda.