Compile with atlas 3.7.17 fails

[Hanno Klemm]

Travis, 

thank you, setting the -fPIC option indeed solved my problem. Just for
future reference (if anybody else needs it), I added the -fPIC flag to
the compiler flags in Make.inc in the atlas build directory, as
setting CCFLAGS somehwo didn't seem to be successful. This might not
be elegant but it worked. 

Best regards,
Hanno


Travis Oliphant <oliphant at ee.byu.edu> said:

> Hanno Klemm wrote:
> 
> >Hi, 
> >
> >I don't know if this is a bug or just me doing something wrong (I
> >suspect the latter). I try to compile numpy-1.0rc1 with python2.5 and
> >atlas 3.7.17.
> >
> >I have build the atlas library myself, it doesn't give any errors
> >under make test or make pttest, so it seems to be okay. if I try to
> >build numpy I get the following error:
> >
> >creating build/temp.linux-x86_64-2.5/numpy/core/blasdot
> >compile options: '-DATLAS_INFO="\"3.7.17\"" -Inumpy/core/blasdot
> >-I/scratch/python2.5/include -Inumpy/core/include
> >-Ibuild/src.linux-x86_64-2.5/numpy/core -Inumpy/core/src
> >-Inumpy/core/include -I/scratch/python2.5/include/python2.5 -c'
> >gcc: numpy/core/blasdot/_dotblas.c
> >gcc -pthread -shared
> >build/temp.linux-x86_64-2.5/numpy/core/blasdot/_dotblas.o
> >-L/scratch/python2.5/lib -lcblas -latlas -o
> >build/lib.linux-x86_64-2.5/numpy/core/_dotblas.so
> >/usr/bin/ld: /scratch/python2.5/lib/libcblas.a(cblas_dgemm.o):
> >relocation R_X86_64_32 can not be used when making a shared object;
> >recompile with -fPIC
> >  
> >
> 
> This may be part of your problem.  It's looks like the linker is having 
> a hard time making use of your compiled extension in a shared library.  
> Perhaps you should make sure -fPIC is on when you compile atlas (I'm
not 
> sure how to do that --- perhaps setting CCFLAGS environment variable to 
> include -fPIC would help).
> 
> -Travis
> 
> 
>
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-- 
Hanno Klemm
klemm at phys.ethz.ch



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