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

(From OE-Core rev: 0ea50cba64b5004722051c0ece900443dc4ca929)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 0 insertions, 2 deletions

diff --git a/meta/classes-recipe/cmake.bbclass b/meta/classes-recipe/cmake.bbclass
index 2c6d28b7a9..1488d744d4 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} )