Re: [boost] [C++-sig] Python Binding woes for BGL with Intel Compiler

From: David Abrahams (dave_at_[hidden])
Date: 2008-08-25 16:46:07

on Mon Aug 25 2008, "Sandeep Gupta" <gupta.sandeep-AT-gmail.com> wrote:

> Hi David,
>   I hope its not a compatability issue. Here are the steps I followed
>
> 1. Downloaded python source and compiled with intel compiler.
>
> 2. Downloaded boost 1.36 and checkout bgl_python from svn repository of
> osl.iu.edu.
>
> 3. Followed the instructions for building/installing boost, boost.python,
> and bgl_python.
>
> 4. The tests under  examples under libs/python/example/ pass.

What about the bgl_python tests?

> 5. Firedup python and issued command "import boost.graph as bgl". This line
> fails  with error:
>
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "...../bgl-python/lib/python/boost/graph/__init__.py", line 16, in
> <module>
>     from boost.graph._graph import *
> ImportError: "...../bgl-python/lib/python/boost/graph/_graph.so: undefined
> symbol: _ZN5boost5graph6python11basic_graphINS_11undirectedSEED1Ev"

  $ echo '_ZN5boost5graph6python11basic_graphINS_11undirectedSEED1Ev' | c++filt
  boost::graph::python::basic_graph<boost::undirectedS>::~basic_graph()

>From what I can tell, it looks like Intel is failing to instantiate that
destructor for some reason.  You might try adding an explicit
instantiation.  In any case, it looks like a compiler bug to me.

> 5. Tried several permutation/combination of LD_LIBRARY_PATH and
> sys.path.append('.. ')  but with no success.
>
> I also tried with bgl_python in the sandbox and the same issue shows
> up.

Hmm, I dunno.  Another thing worth doing: try it with g++ and see if it
works.

-- 
Dave Abrahams
BoostPro Computing
http://www.boostpro.com