From 2ce83104488461b8e49fab20ec2f60be5d32e979 Mon Sep 17 00:00:00 2001
From: Max Kellermann <mk@cm4all.com>
Date: Fri, 10 May 2024 17:17:16 +0200
Subject: [PATCH] time/Convert: forward-declare struct tm

---
 src/time/Convert.hxx | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/time/Convert.hxx b/src/time/Convert.hxx
index 1adc4f6d5..597cccf65 100644
--- a/src/time/Convert.hxx
+++ b/src/time/Convert.hxx
@@ -2,11 +2,12 @@
 // Copyright CM4all GmbH
 // author: Max Kellermann <mk@cm4all.com>
 
-#ifndef TIME_CONVERT_HXX
-#define TIME_CONVERT_HXX
+#pragma once
 
 #include <chrono>
 
+struct tm;
+
 /**
  * Convert a UTC-based time point to a UTC-based "struct tm".
  *
@@ -40,5 +41,3 @@ MakeTime(struct tm &tm) noexcept;
 [[gnu::pure]]
 std::chrono::steady_clock::duration
 ToSteadyClockDuration(const struct timeval &tv) noexcept;
-
-#endif