From 0379e2e8329b62dce6d4a7723641cba673c66740 Mon Sep 17 00:00:00 2001
From: Jyrki Vesterinen <sandgtx@gmail.com>
Date: Mon, 4 Mar 2019 19:22:25 +0200
Subject: [PATCH] Fix build with Visual Studio

Regression from commit 8ee6ed786cc42defb0bc20d3a3b5891479d5ddea.
---
 src/reports.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/reports.cpp b/src/reports.cpp
index 9cdb6e5bca65..3c16d4a570bf 100644
--- a/src/reports.cpp
+++ b/src/reports.cpp
@@ -621,7 +621,7 @@ static config unit_vision(const unit* u)
 		tooltip << _("vision:") << ' ' << u->vision() << '\n';
 	}
 	if (u->jamming() != 0) {
-		if (str.tellp() == 0)
+		if (static_cast<std::streamoff>(str.tellp()) == 0)
 			str << _("jamming:") << ' ' << u->jamming();
 		tooltip << _("jamming:") << ' ' << u->jamming() << '\n';
 	}