[CMake] test for environment variable?

[William A. Hoffman]

You can find the value of an environment variable with $ENV{VAR}.
I don't think there is a way to tell the difference between being set to
nothing and not being set at all.

-Bill


At 09:40 AM 2/23/2005, David Somers wrote:
>Greetings,
>
>Is there a simple way to get CMake to test if an environment variable has
>been defined?
>
>Cheers,
>
>David Somers
>
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