[petsc-users] [SLEPc] record against which PETSc installation it was compiled

[Denis Davydov]

> On 29 Feb 2016, at 18:50, Jose E. Roman <jroman at dsic.upv.es> wrote:
> 
> 
>> El 29 feb 2016, a las 7:45, Denis Davydov <davydden at gmail.com> escribió:
>> 
>> Dear all,
>> 
>> It would be good if SLEPc would store a location of PETSc used during the build in some 
>> config file, e.g. `slepcconf.h`, so that this information could be retrieved by external libraries (e.g. deal.ii) 
>> to prevent configuring with PETSc and SLEPc while SLEPc was linking to a different PETSc installation.
>> See the discussion here https://github.com/dealii/dealii/issues/2167
>> 
>> Kind regards,
>> Denis 
>> 
> 
> I have added this:
> https://bitbucket.org/slepc/slepc/branch/jose/configure
> 
> However, I am not totally convinced of this change, because PETSC_DIR is then defined both in petscconf.h and slepcconf.h, so behaviour could change depending on whether user code includes one or the other in the first place.

Thanks a lot, Jose. 
As an alternative one could call it PETSC_DIR_IN_SLEPC or alike, so that the two are different.

Regards,
Denis.

> 
> I will test this further before merging into master.
> 
> Jose
>