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Merge topic 'crosscompiling-warn-reset'

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4d23636694 Warn if CMAKE_CROSSCOMPILING is true without CMAKE_SYSTEM_NAME set

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Merge-request: !8358
This commit is contained in:
Brad King
2023-03-27 13:53:46 +00:00
committed by Kitware Robot
parent c0d50bf83f 4d23636694
commit 2deb22e160
6 changed files with 22 additions and 5 deletions
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Help/variable/CMAKE_CROSSCOMPILING.rst
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@@ -1,15 +1,15 @@
CMAKE_CROSSCOMPILING
--------------------
Intended to indicate whether CMake is cross compiling, but note limitations
discussed below.
This variable is set by CMake to indicate whether it is cross compiling,
but note limitations discussed below.
This variable will be set to true by CMake if the :variable:`CMAKE_SYSTEM_NAME`
variable has been set manually (i.e. in a toolchain file or as a cache entry
from the :manual:`cmake <cmake(1)>` command line). In most cases, manually
setting :variable:`CMAKE_SYSTEM_NAME` will only be done when cross compiling,
since it will otherwise be given the same value as
:variable:`CMAKE_HOST_SYSTEM_NAME` if not manually set, which is correct for
setting :variable:`CMAKE_SYSTEM_NAME` will only be done when cross compiling
since, if not manually set, it will be given the same value as
:variable:`CMAKE_HOST_SYSTEM_NAME`, which is correct for
the non-cross-compiling case. In the event that :variable:`CMAKE_SYSTEM_NAME`
is manually set to the same value as :variable:`CMAKE_HOST_SYSTEM_NAME`, then
``CMAKE_CROSSCOMPILING`` will still be set to true.