[OE-core] [PATCH] cmake.bbclass: avoid treating imports as system includes

[Jack Mitchell]

On 06/09/16 22:41, Andreas Müller wrote:
> CMake sets all imported headers as system headers. This causes trouble for c++
> projects [1].
>
> Thanks to Jack Mitchell for pointing to the setting [2]. Build tested upon
> meta-qt5-extra-world which had lots of fallout before.
>
> [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70129
> [2] http://lists.openembedded.org/pipermail/openembedded-core/2016-September/126067.html
>
> Signed-off-by: Andreas Müller <schnitzeltony at googlemail.com>
> ---
>  meta/classes/cmake.bbclass | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/meta/classes/cmake.bbclass b/meta/classes/cmake.bbclass
> index 5203d8a..7091f8b 100644
> --- a/meta/classes/cmake.bbclass
> +++ b/meta/classes/cmake.bbclass
> @@ -120,6 +120,7 @@ cmake_do_configure() {
>  	  -DCMAKE_INSTALL_SO_NO_EXE=0 \
>  	  -DCMAKE_TOOLCHAIN_FILE=${WORKDIR}/toolchain.cmake \
>  	  -DCMAKE_VERBOSE_MAKEFILE=1 \
> +	  -DCMAKE_NO_SYSTEM_FROM_IMPORTED=1 \
>  	  ${EXTRA_OECMAKE} \
>  	  -Wno-dev
>  }
>

This is cleaner than my implementation.

Acked By: Jack Mitchell <jack at embed.me.uk>