Note for packages linking against GSL [ACTION NEEDED]

[Orcan Ogetbil]

On 24 February 2015 at 10:25, Jerry James <loganjerry at gmail.com> wrote:
> On Mon, Feb 23, 2015 at 10:46 PM, Orcan Ogetbil <oget.fedora at gmail.com> wrote:
>> Can you elaborate on this? gsl has plenty of other routines that have
>> nothing to do with linear algebra. Is there a technical reason why you
>> have to link to a BLAS if the code using gsl does not actually need a
>> BLAS?
>
> The blas symbols are not weak, so they are undefined when linking an
> application without a BLAS library.  See the output of "ldd -r
> /usr/lib64/libgsl.so.0.17.0" on Rawhide.  Those symbols should be weak
> instead.  That way, if an application doesn't use them, they don't
> prevent linking without a BLAS library.

Thank you for the explanation. I see that there are symbols named
gsl_blas_* in libgsl.so. I guess they are an interface layer to some
blas implementation. I wonder why they were not factored out to some
other dynamic object, or made weak like you said.

Best,
Orcan