From 275f04c76cd67635ad8676a70960769376192eb7 Mon Sep 17 00:00:00 2001
From: Silent <CookiePLMonster@users.noreply.github.com>
Date: Sun, 11 Jan 2026 07:33:49 +0100
Subject: [PATCH] Fix Y2038 bug on Windows in unreal_setfilemodtime (PR #332)

Int32x32To64 macro internally truncates the arguments to int32,
while time_t is 64-bit on most/all modern platforms.
Therefore, usage of this macro creates a Year 2038 bug.
---
 src/support.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/support.c b/src/support.c
index 5addaef86..5f09c7b2e 100644
--- a/src/support.c
+++ b/src/support.c
@@ -1123,7 +1123,7 @@ void unreal_setfilemodtime(const char *filename, time_t mtime)
 				  FILE_ATTRIBUTE_NORMAL, NULL);
 	if (hFile == INVALID_HANDLE_VALUE)
 		return;
-	llValue = Int32x32To64(mtime, 10000000) + 116444736000000000;
+	llValue = (mtime * 10000000LL) + 116444736000000000LL;
 	mTime.dwLowDateTime = (long)llValue;
 	mTime.dwHighDateTime = llValue >> 32;