[CMake] execute a script before and after configuration

[Michael Hertling]

On 01/20/2012 01:57 PM, Dominik Szczerba wrote:
> Hi,
> 
> I am building a big software framework on a cray system whereby during
> cmake "configuration" phase I need to unload certain system modules
> (so that some small test programs are allowed to run without
> scheduler) and afterwards, before the actual build phase starts, I
> need to load them back. Doing it manually is troublesome, because
> sometimes typing "make" triggers cmake to re-run, and then re-build,
> so there is no chance to load/unload the modules.
> 
> So, how would I force one script to run when cmake is started and one
> other script before build starts?
> 
> Many thanks for any directions.
> 
> Dominik

You might use an EXECUTE_PROCESS() command at the beginning of your
CMakeLists.txt to unload the modules, and another EXECUTE_PROCESS()
at the end to reload them.

Regards,

Michael