From 1f57b4834650e693ac554a09bfd20b51196324ac Mon Sep 17 00:00:00 2001
From: Tim Blechmann <tim@klingt.org>
Date: Thu, 29 Feb 2024 09:47:19 +0800
Subject: [PATCH] Compiler detection - __attribute__((fallthrough)) for clang

Clang supports `__attribute__((fallthrough))`. While C++ sources use
[[attribute]], the C codepath still requires a fallback.

Change-Id: Iaa93d2debc21fdd34e414ddb024b95942ae9191f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 376ff95e9308b311038bb316ef36d04244d55b66)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/corelib/global/qcompilerdetection.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/corelib/global/qcompilerdetection.h b/src/corelib/global/qcompilerdetection.h
index bad9583a849..673f1c795bb 100644
--- a/src/corelib/global/qcompilerdetection.h
+++ b/src/corelib/global/qcompilerdetection.h
@@ -1222,11 +1222,11 @@
 #endif
 #endif
 #ifndef Q_FALLTHROUGH
-#  if defined(Q_CC_GNU_ONLY) && Q_CC_GNU >= 700
+#  ifdef Q_CC_GNU
 #    define Q_FALLTHROUGH() __attribute__((fallthrough))
 #  else
 #    define Q_FALLTHROUGH() (void)0
-#endif
+#  endif
 #endif