[Insight-developers] can cmake generate an error if a variable doesn't exist ?

[Gaetan Lehmann]

Hi,

Can cmake generate an error if a variable doesn't exist, instead of  
returning an empty value ?
It would highly simplify debugging big cmake projects (like wrappers).

Thanks

Gaetan

-- 
Gaëtan Lehmann
Biologie du Développement et de la Reproduction
INRA de Jouy-en-Josas (France)
tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
http://voxel.jouy.inra.fr