From 9dd010761f134da0f84ef8a86d77825d62953fe5 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyfox@gentoo.org>
Date: Sat, 6 Oct 2018 10:13:14 +0100
Subject: toolchain.eclass: filter out -Wextra -Wstack-protector

On gcc-3.x -Wextra -Wstack-protector were not yet present.
These options are seen occasionally in users' CFLAGS.

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
---
 eclass/toolchain.eclass | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index e2629d40393d..0e44d922ebe6 100644
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -1507,6 +1507,8 @@ gcc_do_filter_flags() {
 		filter-flags -f{no-,}unit-at-a-time -f{no-,}web -mno-tls-direct-seg-refs
 		filter-flags -f{no-,}stack-protector{,-all}
 		filter-flags -fvisibility-inlines-hidden -fvisibility=hidden
+		# and warning options
+		filter-flags -Wextra -Wstack-protector
 	fi
 	if ! tc_version_is_at_least 4.1 ; then
 		filter-flags -fdiagnostics-show-option
-- 
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