[Dune] dune-grid r4244.

[Oliver Sander]

Hi Robert!
>
> the compile option you suggested, i.e.
>
> make -DGridType=AlbertaGrid\<2,2\>
>
> is indeed as nice solution of the grid selecting problem.
> However, doing this will still lead to the problem with linking the 
> correct library, for example for AlbertaGrid.
>   
You would link to all libraries that have been found.  The
linker only pulls in what it needs.  I know that there are several
Alberta libraries that you cannot link to at the same time.  But
I think that this is a flaw in the design of Alberta, and hacks in
DUNE to compensate for this should be restricted and not involve,
say, YaspGrid.

> Another drawback is, that every grid implementation that should be 
> selectable has to be included in order to apply the above solution.
> The gridtype.hh can select the grid includes which does reduce 
> compilation time.
>   
How about something like

make -DGridType=AlbertaGrid\<2,2\> -DGRID_HEADER=albertagrid.hh

#include <dune/grid/GRID_HEADER>

?

:-)
Oliver


> So you see, no current available solution of this problem is perfect.
>
> Regards
>
> R
>
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>   


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* Oliver Sander                ** email: sander at mi.fu-berlin.de        *
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