From 593199caa49d33c8d2cd9d2c1a99cb538d2ba361 Mon Sep 17 00:00:00 2001
From: yhirose <yhirose@users.noreply.github.com>
Date: Fri, 5 Dec 2025 00:29:11 -0500
Subject: [PATCH] Update httplib.h

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---
 httplib.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/httplib.h b/httplib.h
index fd233b4..d11c002 100644
--- a/httplib.h
+++ b/httplib.h
@@ -2976,7 +2976,8 @@ inline std::string from_i_to_hex(size_t n) {
 inline std::string compute_etag(const FileStat &fs) {
   if (!fs.is_file()) { return std::string(); }
 
-  auto mtime = static_cast<size_t>(fs.mtime());
+  time_t mtime_raw = fs.mtime();
+  size_t mtime = mtime_raw < 0 ? 0 : static_cast<size_t>(mtime_raw);
   auto size = fs.size();
 
   return std::string("W/\"") + from_i_to_hex(mtime) + "-" +