From 181e25632544f4970036b2bfbcda517411faf6c7 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 21 May 2019 11:36:05 +0200
Subject: Use POSIX tar format (ustar) when archiving distributions

---
 build2/dist/operation.cxx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/build2/dist/operation.cxx b/build2/dist/operation.cxx
index 8490db4..fddfcea 100644
--- a/build2/dist/operation.cxx
+++ b/build2/dist/operation.cxx
@@ -581,6 +581,7 @@ namespace build2
                              nullptr))
         {
           args = {"tar",
+                  "--format", "ustar",
                   "-cf", "-",
                   pkg.c_str (),
                   nullptr};
@@ -604,11 +605,13 @@ namespace build2
         }
         else if (e == "tar")
           args = {"tar",
+                  "--format", "ustar",
                   "-cf", ap.string ().c_str (),
                   pkg.c_str (),
                   nullptr};
         else
           args = {"tar",
+                  "--format", "ustar",
                   "-a",
                   "-cf", ap.string ().c_str (),
                   pkg.c_str (),
-- 
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