Re: [cgkit-user] Problem linking cgkit with boost 1.41 and above

[Ben H. <bh...@we...>]

Hi Matthias,

Thanks for the advice.

In the end the problem was caused by mixed boost include files. I 
completely removed all boost packages from the system and modified 
setup.py to include the correct boost directory.

Cheers,
--
Ben

On 17/06/11 19:12, Matthias Baas wrote:
> Hi Ben,
>
> On 15.06.11 06:09, Ben Hall wrote:
>> I have tried statically linking and dynamically linking to boost 1.41
>> through to boost 1.46.1 with python 2.6.4 on 64bit linux (ubuntu lucid).
>> It compiles fine but I always receive this error on trying to import
>> cgkit.cgtypes:
>>
>>   >>>  import cgkit.cgtypes as cgtypes
>> Traceback (most recent call last):
>>     File "<stdin>", line 1, in<module>
>>     File
>> "/vol/apps/python-2.6.4_64/lib/python2.6/site-packages/cgkit/cgtypes.py", line
>> 59, in<module>
>>       import _core
>> ImportError:
>> /vol/apps/python-2.6.4_64/lib/python2.6/site-packages/cgkit/_core.so:
>> undefined symbol:
>> _ZN5boost6python7objects9enum_baseC2EPKcPFP7_objectPKvEPFPvS6_EPFvS6_PNS0_9converter30rvalue_from_python_stage1_dataEENS0_9type_infoE
>>
>> I can import without any issues if I link against boost 1.33 and 1.34.
>> Any suggestions on how to get this working would be much appreciated.
>
> Well, I don't think it's an issue with Boost.Python itself. I can
> compile against 1.46.1 on 64bit Linux just fine without getting any
> errors at import time (this is on Fedora though, not Ubuntu).
>
> Make sure you are not accidentally mixing two versions of Boost. The
> include path and lib path must point to the same version. Also check the
> Boost.Python library name. Depending on how Boost was build, the name
> may just be "libboost_python" or it may include compiler information.
> Also double check that Boost.Python was really built against the version
> of Python you are using cgkit with.
>
> You can check with ldd what Boost.Python lib _core.so will pick up.
> Maybe LD_LIBRARY_PATH is pointing to a directory that contains a
> different version of Boost?
>
> Cheers,
>
> - Matthias -