From e21b300e0970f90ccd76554c6f575fa992812d5f Mon Sep 17 00:00:00 2001
From: Flatcar Buildbot <buildbot@flatcar-linux.org>
Date: Mon, 20 Mar 2023 07:25:14 +0000
Subject: [PATCH] eclass/savedconfig: Sync with Gentoo

It's from Gentoo commit 2cba2db27919bc449ed2a7bf7ed3259c6b96e65f.
---
 .../portage-stable/eclass/savedconfig.eclass    | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/sdk_container/src/third_party/portage-stable/eclass/savedconfig.eclass b/sdk_container/src/third_party/portage-stable/eclass/savedconfig.eclass
index 4681fd2532..cc57485430 100644
--- a/sdk_container/src/third_party/portage-stable/eclass/savedconfig.eclass
+++ b/sdk_container/src/third_party/portage-stable/eclass/savedconfig.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: savedconfig.eclass
@@ -30,15 +30,18 @@
 # 4. Emerge the package with just USE=savedconfig to get the custom
 # build.
 
+case ${EAPI} in
+	6|7|8) ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
+esac
+
+if [[ -z ${_SAVEDCONFIG_ECLASS} ]]; then
+_SAVEDCONFIG_ECLASS=1
+
 inherit portability
 
 IUSE="savedconfig"
 
-case ${EAPI} in
-	6|7|8) ;;
-	*) die "EAPI=${EAPI:-0} is not supported" ;;
-esac
-
 # @FUNCTION: save_config
 # @USAGE: <config files to save>
 # @DESCRIPTION:
@@ -152,4 +155,6 @@ savedconfig_pkg_postinst() {
 	fi
 }
 
+fi
+
 EXPORT_FUNCTIONS pkg_postinst