Hi Marcel,
There are two reasons for that.
1. The way in which FindBlas and Lapack are working. They check that actually
you can link against this libs, by writing a small Fortran call program.
2. They are for Fortran use projects. Calling fortran functions from C/C++, in
a portable way, is not as simple as it looks.
As the modules do a little bit more than just finding some names, we decided
some time ago that is better to keep Fortran versions FindBlas/Lapack and in
future if necessary to add C versions.
As a note, if you are interested in mixing C/C++/Fortran I will recommend you
the iso_c_binding module, from Fortran 2003 standard as a portable, standard
way of doing it.
regards,
Alin
--
______________________________________________________________________
"If the Universities will not study useless subjects, who will?"
G. F. FitzGerald, Nature, 45/46, 392 (1892)
______________________________________________________________________
Mr Alin M ELENA
Irish Centre for High-End Computing -- www.ichec.ie
The Design Tower, Trinity Technology & Enterprise Campus
Grand Canal Quay, Dublin 2, Ireland
Tel: +353 (0) 1 5241608 ext 29
Fax: +353 (0) 1 7645845
http://alin.elenaworld.net
[email protected]
[email protected]
______________________________________________________________________
On Tuesday 07 July 2009 09:31:57 [email protected] wrote:
> Message: 5
> Date: Tue, 07 Jul 2009 10:11:21 +0200
> From: "Marcel Loose" <[email protected]>
> Subject: [CMake] FindLAPACK/FindBLAS require Fortran compiler. Why?
> To: <[email protected]>
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset=US-ASCII
>
> Hi all,
>
> I noticed that FindLAPACK and FindBLAS require that you enable Fortran
> as language, which causes CMake to check for a working Fortran
> compiler.
> IMHO, you only need the fortran runtime libraries, cause you're only
> linking against the Lapack/Blas libraries. Most Linux distro's have
> separate packages for compiler and runtime libraries.
>
> Is there a good reason for FindLAPACK and FindBLAS to require a working
> Fortran compiler?
>
> Best regards,
> Marcel Loose.
_______________________________________________
Powered by www.kitware.com
Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html
Please keep messages on-topic and check the CMake FAQ at:
http://www.cmake.org/Wiki/CMake_FAQ
Follow this link to subscribe/unsubscribe:
http://www.cmake.org/mailman/listinfo/cmake
