From 15ed9f87e3a1f91bd7b4a5291edf268b843e5987 Mon Sep 17 00:00:00 2001
From: Marcel Raad <Marcel.Raad@teamviewer.com>
Date: Mon, 9 Jul 2018 18:52:05 +0200
Subject: curl-compilers: enable -Wimplicit-fallthrough=4 for GCC

This enables level 4 instead of the default level 3, which of the
currently used comments only allows /* FALLTHROUGH */ to silence the
warning.

Closes https://github.com/curl/curl/pull/2747
---
 m4/curl-compilers.m4 | 1 +
 1 file changed, 1 insertion(+)

(limited to 'm4')

diff --git a/m4/curl-compilers.m4 b/m4/curl-compilers.m4
index 63e45f3e0..95afae426 100644
--- a/m4/curl-compilers.m4
+++ b/m4/curl-compilers.m4
@@ -1060,6 +1060,7 @@ AC_DEFUN([CURL_SET_COMPILER_WARNING_OPTS], [
             tmp_CFLAGS="$tmp_CFLAGS -Walloc-zero"
             tmp_CFLAGS="$tmp_CFLAGS -Wformat-overflow=2"
             tmp_CFLAGS="$tmp_CFLAGS -Wformat-truncation=2"
+            tmp_CFLAGS="$tmp_CFLAGS -Wimplicit-fallthrough=4"
           fi
           #
         fi
-- 
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