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14 lines
424 B
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14 lines
424 B
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ENV
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---
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Operator to read environment variables.
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Use the syntax ``$ENV{VAR}`` to read environment variable ``VAR``.
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To test whether an environment variable is defined, use the signature
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``if(DEFINED ENV{<name>})`` of the :command:`if` command.
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For general information on environment variables, see the
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:ref:`Environment Variables <CMake Language Environment Variables>`
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section in the :manual:`cmake-language(7)` manual.
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