[Dune-devel] cmake oddities

[Bård Skaflestad]

All,

I *think* I know the reason for the "/__/" path component.

I've only every seen that happen if the pathname of the source file contains a "/../" string and I believe that it's "just" CMake trying to guarantee that the build directory of a component is a proper subdirectory of whatever the top-level build directory happens to be.  I could definitely be wrong, though, so don't take my word for it.


Cheers,

Bård
________________________________________
From: dune-devel-bounces+bard.skaflestad=sintef.no at dune-project.org [dune-devel-bounces+bard.skaflestad=sintef.no at dune-project.org] on behalf of Oliver Sander [sander at igpm.rwth-aachen.de]
Sent: 23 January 2014 11:33
To: dune-devel at dune-project.org
Subject: Re: [Dune-devel] cmake oddities

Hi Christoph,
thanks for the information.  No further investigation needed for me.
Cheers,
Oliver

Am 23.01.2014 11:29, schrieb Christoph Grüninger:
> Hi Oliver,
> thanks for testing CMake and your feedback.
>
> I don't have a solution for the CMake policy CMP0022 warning. I spend a
> lot of time trying to work around, but it boils down to a question of
> compatibility. The only non-hacky way to get rid of the warning would be
> to require CMake 2.8.9 instead of 2.8.6. At least CMake 2.8.12.1 reduces
> the warning to one per external grid library, compared to 2.8.12 which
> emitted the same warning over and over again.
>
> Further reading:
> http://www.cmake.org/pipermail/cmake/2013-December/056627.html
> http://www.cmake.org/pipermail/cmake/2013-December/056628.html
>
>
>> Also, a bit later when compilation starts I get messages like
>>
>> Scanning dependencies of target dunegrid
>> [  4%] Building CXX object lib/CMakeFiles/dunegrid.dir/__/dune/grid/onedgrid/onedgrid.cc.o
>> [  4%] Building CXX object lib/CMakeFiles/dunegrid.dir/__/dune/grid/onedgrid/onedgridfactory.cc.o
>> [  4%] Building CXX object lib/CMakeFiles/dunegrid.dir/__/dune/grid/onedgrid/nulliteratorfactory.cc.o
>> [...]
>>
>> The /__/ looks strange.  Is that intentional?
>
> I always though that's caused by CMake and they know what they do. I
> just checked and METIS 5.0.2 has this part, too. If you insist, I will
> find out the rationale of /__/.
>
> Bye
> Christoph
>
>
>
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