Fix the new savedconfig logic not to require preexisting `.config`
if savedconfig will be used. This is needed to handle architectures
where we do not supply default configs, and savedconfig is the only
option.

Fixes: e290c3c78b7a ("...: Apply savedconfig on top of merged configs")
Closes: https://bugs.gentoo.org/938725
Signed-off-by: Michał Górny <mgorny@gentoo.org>
---
eclass/kernel-build.eclass | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/eclass/kernel-build.eclass b/eclass/kernel-build.eclass
index be02920162f4..6471cbb3e254 100644
--- a/eclass/kernel-build.eclass
+++ b/eclass/kernel-build.eclass
@@ -243,7 +243,13 @@ kernel-build_src_configure() {
MAKEARGS+=( KBZIP2="lbzip2" )
fi

- [[ -f .config ]] || die "Ebuild error: please copy default config into .config"
+ if [[ ! -f .config ]]; then
+ if use savedconfig; then
+ > .config || die
+ else
+ die "Ebuild error: please copy default config into .config"
+ fi
+ fi

if [[ -z "${KV_LOCALVERSION}" ]]; then
KV_LOCALVERSION=$(sed -n -e 's#^CONFIG_LOCALVERSION="\(.*\)"$#\1#p' \
--
2.46.0

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