[Dune] CMAKE_GUARD for Dune modules

[Markus Blatt]

Hi,

On Tue, Aug 23, 2016 at 12:38:20PM +0200, Oliver Sander wrote:
> Dear masters of CMake,
> 
> I want a unit test to only build and run when dune-functions is present.  Please, what is the
> appropriate CMAKE_GUARD clause for this?
>

The dune module are searched for with
find_package(<case-sensitive-module-name>), which sets
<case-sensitive-module-name>_FOUND on success to true. The following
should do the trick:

if(dune-functions_FOUND)
  ... # add_executable()
  ... # add_test()
endif()

Markus


-- 
Dr. Markus Blatt - HPC-Simulation-Software & Services http://www.dr-blatt.de
Hans-Bunte-Str. 8-10, 69123 Heidelberg, Germany
Tel.: +49 (0) 160 97590858
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