patrickelectric opened a new pull request, #18964:
URL: https://github.com/apache/nuttx/pull/18964
## Summary
Fix compilation warning when running cmake 4.1
## Impact
Remove an annoying compilation warning when using the project as a submodule
## Testing
Before:
```
CMake Warning (dev) at cmake/nuttx_create_symlink.cmake:28 (file):
Path
/Users/patrick/git/blue/pequod/lib/nuttx/arch/arm/src/stm32h5
is directory. It will be copied recursively when NEW policy behavior
applies for CMP0205.
Policy CMP0205 is not set: file(CREATE_LINK) with COPY_ON_ERROR copies
directory content. Run "cmake --help-policy CMP0205" for policy details.
Use the cmake_policy command to set the policy and suppress this warning.
Call Stack (most recent call first):
CMakeLists.txt:335 (nuttx_create_symlink)
This warning is for project developers. Use -Wno-dev to suppress it.
```
After:
```
# No more warning
```
Bonus points:
```
cmake --help-policy CMP0205
CMP0205
-------
.. versionadded:: 4.3
``file(CREATE_LINK)`` with ``COPY_ON_ERROR`` copies directory content.
The ``file(CREATE_LINK)`` command's ``COPY_ON_ERROR`` option copies
the source file to the destination as a fallback if linking it fails.
If the source is a directory, CMake 4.2 and below create the destination
directory but do not copy its contents. CMake 4.3 and above prefer to
copy the directory contents too. This policy provides compatibility with
projects that have not been updated to expect the contents to be copied.
The ``OLD`` behavior for this policy is to create the destination directory
without copying contents. The ``NEW`` behavior for this policy to create
the destination directory and copy contents from the source directory.
This policy was introduced in CMake version 4.3.
It may be set by ``cmake_policy()`` or ``cmake_minimum_required()``.
If it is not set, CMake warns, and uses ``OLD`` behavior.
.. note::
The ``OLD`` behavior of a policy is
:ref:`deprecated by definition <cmake-policies-intro>`
and may be removed in a future version of CMake.
```
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