From fc9d02cb29ed8505eeb4f90348b7318ddcfae434 Mon Sep 17 00:00:00 2001
From: Faraz Vahedi <kfv@FreeBSD.org>
Date: Mon, 24 Aug 2026 17:17:15 +0330
Subject: [PATCH] libc: Add <time.h> C23 feature test macro

Define the __STDC_VERSION_TIME_H__ feature test macro as the
header fully conforms to C23.

Reviewed by:	fuz
Approved by:	fuz (mentor)
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D59134
---
 include/time.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/include/time.h b/include/time.h
index 295df3b5790a..fed2805e03f1 100644
--- a/include/time.h
+++ b/include/time.h
@@ -34,12 +34,11 @@
  * SUCH DAMAGE.
  */
 
-/*
- */
-
 #ifndef _TIME_H_
 #define	_TIME_H_
 
+#define __STDC_VERSION_TIME_H__	202311L
+
 #include <sys/cdefs.h>
 #include <sys/_null.h>
 #include <sys/_types.h>