From 7194196100bf7c08ba2d1d1664738efd6cd3fa78 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Timm=20B=C3=A4der?= <mail@baedert.org>
Date: Thu, 27 Jan 2022 16:05:33 +0100
Subject: [PATCH] build: Make GCC ignore fallthrough comments

From the GCC manpage:

> Wimplicit-fallthrough=5 doesn't recognize any comments as
> fallthrough comments, only attributes disable
> the warning.

So, check for the =5 version after checking for the simple version. This
way we get -Wfallhrough with clang and -Wfallthrough -Wfallthrough=5
with GCC, which works.
---
 meson.build | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 65bf0b20af..4fbbb2f539 100644
--- a/meson.build
+++ b/meson.build
@@ -298,7 +298,8 @@ elif cc.get_id() == 'gcc' or cc.get_id() == 'clang'
     'array-bounds',
     'empty-body',
     'implicit',
-    'implicit-fallthrough',
+    'implicit-fallthrough',   # For non-gcc
+    'implicit-fallthrough=5', # For GCC, only recognize the attribute and no comments
     'init-self',
     'int-to-pointer-cast',
     'main',
-- 
2.30.2