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Help: Document that CMP0149 should be set before project()

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Issue: #25413
This commit is contained in:
Brad King
2023-11-20 08:51:46 -05:00
parent 9cfff766eb
commit fe0d03b044
1 changed files with 7 additions and 0 deletions
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Help/policy/CMP0149.rst
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@@ -35,6 +35,13 @@ This policy provides compatibility for projects, toolchain files, and
build scripts that have not been ported away from using build scripts that have not been ported away from using
:variable:`CMAKE_SYSTEM_VERSION` to specify an exact SDK version. :variable:`CMAKE_SYSTEM_VERSION` to specify an exact SDK version.
.. note::
This policy must be set before the first :command:`project` or
:command:`enable_language` command invocation at the top of the
project. That is when :ref:`Visual Studio Generators` select a
Windows SDK.
The ``OLD`` behavior for this policy is to use the exact value of The ``OLD`` behavior for this policy is to use the exact value of
:variable:`CMAKE_SYSTEM_VERSION` if possible. The ``NEW`` behavior :variable:`CMAKE_SYSTEM_VERSION` if possible. The ``NEW`` behavior
for this policy is to ignore it. for this policy is to ignore it.