From 3db4cb987f114186744025432fc201bbea1ccc7b Mon Sep 17 00:00:00 2001
From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Thu, 27 Mar 2025 11:53:02 +0000
Subject: clang: warn when the comma operator is used

When compiling Git using `clang`, the `-Wcomma` option can be used to
warn about code using the comma operator (because it is typically
unintentional and wants to use the semicolon instead).

Helped-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Acked-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 config.mak.dev | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'config.mak.dev')

diff --git a/config.mak.dev b/config.mak.dev
index 0fd8cc4d35..3142363816 100644
--- a/config.mak.dev
+++ b/config.mak.dev
@@ -40,6 +40,10 @@ DEVELOPER_CFLAGS += -Wvla
 DEVELOPER_CFLAGS += -Wwrite-strings
 DEVELOPER_CFLAGS += -fno-common
 
+ifneq ($(filter clang9,$(COMPILER_FEATURES)),)
+DEVELOPER_CFLAGS += -Wcomma
+endif
+
 ifneq ($(filter clang4,$(COMPILER_FEATURES)),)
 DEVELOPER_CFLAGS += -Wtautological-constant-out-of-range-compare
 endif
-- 
cgit v1.3-5-g9baa