File fstream.patch of Package descent3

From e1a907bd64d700308e3a1625f0e0a5ddb1c22ef0 Mon Sep 17 00:00:00 2001
From: Jon Daniel <joneqdaniel@gmail.com>
Date: Thu, 8 May 2025 12:36:35 -0700
Subject: [PATCH] build: add missing #include to cure compile error
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References: https://github.com/DescentDevelopers/Descent3/pull/715

[g++-14 complains:

mission_download.cpp:402:19: error: variable ‘std::fstream in’ has initializer but incomplete type
  402 |   std::fstream in(qualfile, std::ios::binary | std::ios::trunc | std::ios::out);

–jengelh]
---
 Descent3/mission_download.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Descent3/mission_download.cpp b/Descent3/mission_download.cpp
index 52e408e4..7343ee8d 100644
--- a/Descent3/mission_download.cpp
+++ b/Descent3/mission_download.cpp
@@ -120,6 +120,7 @@
 
 #include <cstdio>
 #include <future>
+#include <fstream>
 
 #include "mem.h"
 #include "args.h"
-- 
2.49.0