[Dune] How to get rid of Lapack?

[Aleksejs Fomins]

Dear Markus,

Thank you for your advice.

The only reason I tried picking CLapack is because we have used it before. I naively assumed that using CLapack is less work than Lapack.

I guess I shall try to make it work with Lapack.

Aleksejs




On 09.02.2016 14:17, Markus Blatt wrote:
> Hi,
> 
> On Tue, Feb 09, 2016 at 10:15:43AM +0100, Aleksejs Fomins wrote:
>> I have Lapack and CLapack installed on my system.
>>
>> I want to use CLapack in my code. However, Dune finds Lapack, and passes the Lapack library to my executable, thus causing name conflict.
>>
>> Would it be possible to explicitly exclude a library from a project with CMake?
>>
> 
> We are using the shipped FindLapack module (see cmake --help-module
> FindLAPACK). It only searches for the fortran version and always
> assumes that fortran_name function is mangeled as fortran_name_. (Does
> not seem very portable to me)
> 
> It seems like CLapack uses the same function names (with an underscore
> added). Therefore you cannnot use both at the same time with getting
> linker problems, or hacking the whole buildsystem of DUNE/cmake to
> work without the fortran library.
> 
> Seems like a lot of work. As Clapack is only an f2ced version of
> lapack I fail to see what it would buy you.
> 
> Cheers,
> 
> Markus
>