2018-10-28 12:09:07 +01:00
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CACHE
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-----
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2019-11-11 23:01:05 +01:00
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Operator to read cache variables.
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2018-10-28 12:09:07 +01:00
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Use the syntax ``$CACHE{VAR}`` to read cache entry ``VAR``.
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See the :ref:`cmake-language(7) variables <CMake Language Variables>`
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documentation for more complete documentation of the interaction of
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normal variables and cache entries.
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When evaluating :ref:`Variable References` of the form ``${VAR}``,
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CMake first searches for a normal variable with that name, and if not
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found CMake will search for a cache entry with that name.
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The ``$CACHE{VAR}`` syntax can be used to do direct cache lookup and
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ignore any existing normal variable.
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2019-11-11 23:01:05 +01:00
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See the :command:`set` and :command:`unset` commands to see how to
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write or remove cache variables.
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