From 71153a8d938fd1eab9c5b8dbdfece1ea94549d2e Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 5 Jul 2019 16:05:54 +0200
Subject: Preserve timestamp when copying backlink

---
 libbuild2/algorithm.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libbuild2/algorithm.cxx b/libbuild2/algorithm.cxx
index 963714b..ded34b4 100644
--- a/libbuild2/algorithm.cxx
+++ b/libbuild2/algorithm.cxx
@@ -1169,7 +1169,8 @@ namespace build2
               }
             }
             else
-              cpfile (p, l, cpflags::overwrite_content);
+              cpfile (p, l, (cpflags::overwrite_content |
+                             cpflags::copy_timestamps));
 
             break;
           }
-- 
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