From 7c199e3b191a6f714694035f1eba40112e71675c Mon Sep 17 00:00:00 2001 From: Khem Raj Date: Thu, 1 Feb 2024 18:41:51 -0800 Subject: [PATCH] Check for C standard version >= 23 for [[__fallthrough__]] This avoids warnings with clang-18+ e.g. pprintint.h:256:6: error: [[]] attributes are a C23 extension [-Werror,-Wc23-extensions] Upstream-Status: Submitted [https://github.com/dvidelabs/flatcc/pull/273] Signed-off-by: Khem Raj --- include/flatcc/portable/pattributes.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/flatcc/portable/pattributes.h b/include/flatcc/portable/pattributes.h index 9240fa3..dd4918a 100644 --- a/include/flatcc/portable/pattributes.h +++ b/include/flatcc/portable/pattributes.h @@ -57,7 +57,7 @@ extern "C" { /* https://en.cppreference.com/w/c/language/attributes/fallthrough */ -#if PORTABLE_HAS_C_ATTRIBUTE(__fallthrough__) +#if PORTABLE_HAS_C_ATTRIBUTE(__fallthrough__) && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L # define pattribute_fallthrough [[__fallthrough__]] #elif PORTABLE_HAS_ATTRIBUTE(__fallthrough__) # define pattribute_fallthrough __attribute__((__fallthrough__)) -- 2.43.0