From f6ce9210f1621196f07a4b29ee197e43f55008dd Mon Sep 17 00:00:00 2001
From: Bertrand Jacquin <bertrand@jacquin.bzh>
Date: Sat, 28 Mar 2020 15:05:37 +0000
Subject: eclass/linux-build: copy config before running oldconfig

---
 eclass/linux-build.eclass | 1 +
 1 file changed, 1 insertion(+)

diff --git a/eclass/linux-build.eclass b/eclass/linux-build.eclass
index bfc68ff4..9255d3ea 100644
--- a/eclass/linux-build.eclass
+++ b/eclass/linux-build.eclass
@@ -336,6 +336,7 @@ _linux-build_src_prepare_build() {
 	fi
 
 	einfo "Checking configuration file"
+	cp -a "${BUILDDIR}/.config" "${BUILDDIR}/.config.old"
 	if kernel_is -le 3 5 ; then
 		emake oldnoconfig "${myopt[@]}"
 	else
-- 
cgit v1.2.3