[v2,1/2] cmake: remove CMAKE_SYSTEM_* from the native toolchain

If these variables are set explictly then CMake assumes that it is
cross-compiling[1]. We don't need to set them as the default values as
detected by CMake are correct for native.

[1] https://cmake.org/cmake/help/latest/variable/CMAKE_CROSSCOMPILING.html

Signed-off-by: Ross Burton <ross.burton@arm.com>
---
 meta/classes-recipe/cmake.bbclass | 2 --
 1 file changed, 2 deletions(-)

On Thu, Jul 17, 2025 at 6:48 AM Ross Burton via lists.openembedded.org
<ross.burton=arm.com@lists.openembedded.org> wrote:
>
> If these variables are set explictly then CMake assumes that it is
> cross-compiling[1]. We don't need to set them as the default values as
> detected by CMake are correct for native.

makes sense, I think this is what I was fighting against when
compiling libmusicbrainz

>
> [1] https://cmake.org/cmake/help/latest/variable/CMAKE_CROSSCOMPILING.html
>
> Signed-off-by: Ross Burton <ross.burton@arm.com>
> ---
>  meta/classes-recipe/cmake.bbclass | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/meta/classes-recipe/cmake.bbclass b/meta/classes-recipe/cmake.bbclass
> index 449fe2bb443..0bb0f33a9ec 100644
> --- a/meta/classes-recipe/cmake.bbclass
> +++ b/meta/classes-recipe/cmake.bbclass
> @@ -180,8 +180,6 @@ list(APPEND CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES ${includedir})
>
>  EOF
>          cat > ${WORKDIR}/toolchain-native.cmake <<EOF
> -set( CMAKE_SYSTEM_NAME ${@map_host_os_to_system_name(d.getVar('BUILD_OS'))} )
> -set( CMAKE_SYSTEM_PROCESSOR ${@map_host_arch_to_uname_arch(d.getVar('BUILD_ARCH'))} )
>  set( CMAKE_C_COMPILER ${OECMAKE_NATIVE_C_COMPILER} )
>  set( CMAKE_CXX_COMPILER ${OECMAKE_NATIVE_CXX_COMPILER} )
>  set( CMAKE_ASM_COMPILER ${OECMAKE_NATIVE_C_COMPILER} )
> --
> 2.43.0
>
>
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