[CMake] how to check if ENV exists

Sören Freudiger muffmolch at gmx.de
Fri Nov 16 07:08:32 EST 2007


Just a short question.

How to check if an environment variable exist?

Something like:
IF( ENV{TESTVAR} )
...

Because elsewise I get errors at $ENV{TESTVAR} if TESTVAR doesn't exist...

Best,
SirAnn





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