Bug#722252: lapack: -Bsymbolic-functions prevents override of xerblas_

[Julian Taylor]

On 16.09.2013 16:51, Mike Miller wrote:
> On Wed, Sep 11, 2013 at 11:50:36 +0200, Julian Taylor wrote:
>>
>> I committed a fix + autopkgtests to svn.
>> I went with stripping the flag, --dynamic-list does not seem work with
>> the gold linker :(
> 
> Hi Julian, thanks for this bug and fix. The blas library also contains
> its own xerbla routine, I suspect it is equally susceptible to this
> problem on Ubuntu and other derivatives. Should bugs be filed and
> equivalent changes made to the blas, atlas, and openblas packages? Are
> there any other variants that I haven't listed?
> 

yes in principle all blas packages can be affected by this, but only
lapack uses the hardening flags and thus -Wl,-Bsymbolic-functions.
To be safe it should probably be preemptively stripped from all and
tests added, numpy or scipy is a good place to test it, as it tries its
tests with all blas options (in ubuntu).