acassis commented on PR #19755:
URL: https://github.com/apache/nuttx/pull/19755#issuecomment-5231363494
> What problem exactly does this PR solve? support for add_subdirectory is
not possible with current cmake support in nuttx and supporting this may
require a complete rebuild of cmake build
@raiden00pl with this simple modification we can run the NuttX sim as
external project:
```
$ cat CMakeLists.txt
cmake_minimum_required(VERSION 3.20)
project(NuttXExternal)
add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../nuttx nuttx_build)
```
This is just the initial step, more modification will be done to support
cross-compiling too. As you said it will be a redesign of CMake build system.
So I want to do it in baby steps
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