From f2bec42364b0e337e5f2e159f7954dc39e756bda Mon Sep 17 00:00:00 2001
From: Flatcar Buildbot <buildbot@flatcar-linux.org>
Date: Mon, 16 Sep 2024 07:14:05 +0000
Subject: [PATCH] eclass/preserve-libs: Sync with Gentoo

It's from Gentoo commit e2bb16305d903272dcef1e902d0e7b3ec87dd87b.
---
 .../portage-stable/eclass/preserve-libs.eclass   | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/sdk_container/src/third_party/portage-stable/eclass/preserve-libs.eclass b/sdk_container/src/third_party/portage-stable/eclass/preserve-libs.eclass
index 35c65ef443..38571447b9 100644
--- a/sdk_container/src/third_party/portage-stable/eclass/preserve-libs.eclass
+++ b/sdk_container/src/third_party/portage-stable/eclass/preserve-libs.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: preserve-libs.eclass
@@ -7,14 +7,18 @@
 # @SUPPORTED_EAPIS: 5 6 7 8
 # @BLURB: preserve libraries after SONAME changes
 
-case ${EAPI} in
-	5|6|7|8) ;;
-	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
-esac
-
 if [[ -z ${_PRESERVE_LIBS_ECLASS} ]]; then
 _PRESERVE_LIBS_ECLASS=1
 
+case ${EAPI} in
+	5|6)
+		ewarn "${CATEGORY}/${PF}: ebuild uses ${ECLASS} with deprecated EAPI ${EAPI}!"
+		ewarn "${CATEGORY}/${PF}: Support will be removed on 2024-10-08. Please port to newer EAPI."
+		;;
+	7|8) ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
+esac
+
 # @FUNCTION: preserve_old_lib
 # @USAGE: <libs to preserve> [more libs]
 # @DESCRIPTION: