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Help: CMAKE_APPLE_SILICON_PROCESSOR cannot be set in a toolchain file

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`CMakeDetermineSystem` determines the host system information before
loading the toolchain file.

Issue: #22012
This commit is contained in:
Brad King
2021-04-01 09:59:59 -04:00
parent 22612dd53a
commit 3f04f69733
1 changed files with 2 additions and 3 deletions
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5
Help/variable/CMAKE_APPLE_SILICON_PROCESSOR.rst
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@@ -8,8 +8,7 @@ CMake what architecture to use for :variable:`CMAKE_HOST_SYSTEM_PROCESSOR`.
The value must be either ``arm64`` or ``x86_64``.
The value of this variable should never be modified by project code.
It is meant to be set by a toolchain file specified by the
:variable:`CMAKE_TOOLCHAIN_FILE` variable, or as a cache entry
provided by the user, e.g. via ``-DCMAKE_APPLE_SILICON_PROCESSOR=...``.
It is meant to be set as a cache entry provided by the user,
e.g. via ``-DCMAKE_APPLE_SILICON_PROCESSOR=...``.
See also the :envvar:`CMAKE_APPLE_SILICON_PROCESSOR` environment variable.