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Merge topic 'set-cache-keep-normal-variable'

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d96eb55282 set(CACHE): do not remove normal variable

Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Ben Boeckel <ben.boeckel@kitware.com>
Merge-request: !6146
This commit is contained in:
Brad King
2021-05-25 14:02:56 +00:00
committed by Kitware Robot
parent 0c16774fec d96eb55282
commit bf2717e436
16 changed files with 164 additions and 13 deletions
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10
Help/command/set.rst
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@@ -68,9 +68,13 @@ users.
If the cache entry does not exist prior to the call or the ``FORCE``
option is given then the cache entry will be set to the given value.
Furthermore, any normal variable binding in the current scope will
be removed to expose the newly cached value to any immediately
following evaluation.
.. note::
The content of the cache variable will not be directly accessible if a normal
variable of the same name already exists (see :ref:`rules of variable
evaluation <CMake Language Variables>`). If policy :policy:`CMP0126` is set
to ``OLD``, any normal variable binding in the current scope will be removed.
It is possible for the cache entry to exist prior to the call but
have no type set if it was created on the :manual:`cmake(1)` command