Thanks, changing the library path and explicitly adding libraries =['gsl', 'gslcblas'] did the trick ! Thank you so much ! Giovanni On 04 Nov 2008, at 12:09, Matthieu Brucher wrote:
The issue with the LD_LIBRARY_PATH would come up in any case. You have to put your gsl library folder before the system one if you want your gsl library to be used.
For the cblas issue, it seems from Google you have to link against a CBLAS library as well to use the GSL (for instance blas or atlas shoule be enough).
Matthieu
2008/11/4 Giovanni Samaey
: And, additionally setting the environment variable LD_LIBRARY_PATH to start with /data/home/u0038151/lib instead of ending with it, it picks up my own gsl, and gives the error message
0 u0038151@lo-03-02 dot2 $ python -c "import dot" Traceback (most recent call last): File "<string>", line 1, in ? File "dot.py", line 7, in ? import _dot ImportError: /data/home/u0038151/lib/libgsl.so.0: undefined symbol: cblas_ctrmv
Again something different...
Giovanni
On 04 Nov 2008, at 11:46, Giovanni Samaey wrote:
Hi Matthieu,
thank you for your prompt reply.
On 04 Nov 2008, at 11:24, Matthieu Brucher wrote:
# dot extension module _test = Extension("_test", ["test_wrap.c", "test.c"], include_dirs = [numpy_include,'/data/home/ u0038151/include'], library_dirs = ['/data/home/u0038151/lib'] )
This is where is specify the directory where my header files are, as well as the directory of the library. If I add, from your suggestion libraries = ['gsl'] to that list, it tries to pick up a gsl that is installed in /usr/lib (but there are no headers there.) Then I get the message:
python -c "import dot" Traceback (most recent call last): File "<string>", line 1, in ? File "dot.py", line 7, in ? import _dot ImportError: /usr/lib/libgsl.so.0: undefined symbol: cblas_dsdot
So it finds the gsl symbols in the system library (not mine), probably combined with my headers, and then has a different error.
Giovanni
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