[OE-core] [PATCHv3] toolchain-script: Add support for ccache builds with the SDK

[Laszlo Papp]

Including both Richard Purdie and Saul Wold as they were the main
criticizers last time in the beginning of September when I submitted
the first version of this patch.

On Thu, Nov 27, 2014 at 5:40 PM, Laszlo Papp <lpapp at kde.org> wrote:
> It is necessary to have an SDK for developers who build their software with
> ccache to speed up the compilation. Without resolving this, unfortunately the
> compilation will fail for them.
>
> Signed-off-by: Laszlo Papp <lpapp at kde.org>
> ---
>  meta/classes/toolchain-scripts.bbclass | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/meta/classes/toolchain-scripts.bbclass b/meta/classes/toolchain-scripts.bbclass
> index d5b9675..9836db4 100644
> --- a/meta/classes/toolchain-scripts.bbclass
> +++ b/meta/classes/toolchain-scripts.bbclass
> @@ -19,6 +19,7 @@ toolchain_create_sdk_env_script () {
>                 EXTRAPATH="$EXTRAPATH:${SDKPATHNATIVE}${bindir_nativesdk}/${TARGET_ARCH}${TARGET_VENDOR}-$i"
>         done
>         echo 'export PATH=${SDKPATHNATIVE}${bindir_nativesdk}:${SDKPATHNATIVE}${bindir_nativesdk}/${TARGET_SYS}'$EXTRAPATH':$PATH' >> $script
> +       echo 'export CCACHE_PATH=${SDKPATHNATIVE}${bindir_nativesdk}:${SDKPATHNATIVE}${bindir_nativesdk}/${TARGET_SYS}'$EXTRAPATH':$CCACHE_PATH' >> $script
>         echo 'export PKG_CONFIG_SYSROOT_DIR=$SDKTARGETSYSROOT' >> $script
>         echo 'export PKG_CONFIG_PATH=$SDKTARGETSYSROOT'"$libdir"'/pkgconfig' >> $script
>         echo 'export CONFIG_SITE=${SDKPATH}/site-config-'"${multimach_target_sys}" >> $script
> @@ -37,6 +38,7 @@ toolchain_create_tree_env_script () {
>         rm -f $script
>         touch $script
>         echo 'export PATH=${STAGING_DIR_NATIVE}/usr/bin:${PATH}' >> $script
> +       echo 'export CCACHE_PATH=${STAGING_DIR_NATIVE}/usr/bin:${CCACHE_PATH}' >> $script
>         echo 'export PKG_CONFIG_SYSROOT_DIR=${PKG_CONFIG_SYSROOT_DIR}' >> $script
>         echo 'export PKG_CONFIG_PATH=${PKG_CONFIG_PATH}' >> $script
>         echo 'export CONFIG_SITE="${@siteinfo_get_files(d)}"' >> $script
> --
> 2.1.3
>