How to retrieve a user environment variable in CMake (Windows)

Question

I know how to retrieve a normal machine wide environment variable in CMAKE using

$ENV{EnvironmentVariableName}

but I can not retrieve a use

Answer 1

Getting variables into your CMake script

You can pass a variable on the line with the cmake invocation:

FOO=1 cmake

or by exporting a variable in BASH:

export FOO=1

Then you can pick it up in a cmake script using:

$ENV{FOO}