[meta-virtualization] [PATCH V2] criu: fix host gcc can't recognized option -fmacro-prefix-map

[Bruce Ashfield]

merged

Bruce

On Wed, Feb 27, 2019 at 8:09 PM Dengke Du <dengke.du at windriver.com> wrote:
>
> Generally, our host gcc version below 8.0, but cross toolchain in yocto
> above 8.0, now 8.3, the option "macro-prefix-map" coming from 8.0, so if
> the host gcc below 8.0, it can't unrecognized the option "macro-prefix-map".
>
> In criu source code, the HOSTCFLAGS coming from CFLAGS:
>     https://github.com/checkpoint-restore/criu/blob/criu-dev/Makefile#L17
> In yocto project, the CFLAGS coming from the cross toolchain, containing
> the "-fmacro-prefix-map" default, so we should use the BUILD_CFLAGS, it
> contains the flags that used for host building.
>
> Signed-off-by: Dengke Du <dengke.du at windriver.com>
> ---
>  recipes-containers/criu/criu_git.bb | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/recipes-containers/criu/criu_git.bb b/recipes-containers/criu/criu_git.bb
> index 45195ea..123f6a3 100644
> --- a/recipes-containers/criu/criu_git.bb
> +++ b/recipes-containers/criu/criu_git.bb
> @@ -54,6 +54,7 @@ export C_INCLUDE_PATH="${STAGING_INCDIR}/libnl3"
>
>  export BUILD_SYS
>  export HOST_SYS
> +export HOSTCFLAGS = "${BUILD_CFLAGS}"
>
>  inherit setuptools
>
> --
> 2.7.4
>
> --
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