From e7d8789cb4106fb6ec9e3713cd71a209027ed8ff Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Wed, 26 Jun 2024 16:38:17 +0300
Subject: Sleep for 1 second after installing system/distribution packages in
 bpkg-build

---
 bpkg/pkg-build.cxx | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/bpkg/pkg-build.cxx b/bpkg/pkg-build.cxx
index 6a9ad7d..c230463 100644
--- a/bpkg/pkg-build.cxx
+++ b/bpkg/pkg-build.cxx
@@ -9,6 +9,11 @@
 #include <sstream>
 #include <iostream> // cout
 
+#ifndef _WIN32
+#  include <thread> // this_thread::sleep_for()
+#  include <chrono>
+#endif
+
 #include <libbutl/standard-version.hxx>
 
 #include <bpkg/package.hxx>
@@ -7752,6 +7757,15 @@ namespace bpkg
         assert (sys_pkg_mgr && *sys_pkg_mgr != nullptr);
 
         (*sys_pkg_mgr)->install (ps);
+
+        // Note that installing packages on POSIX systems may end up with
+        // asynchronous restart of some system services which, in particular,
+        // may result in the network short-term unavailability. Thus, let's
+        // pause for a while before fetching the source packages.
+        //
+#ifndef _WIN32
+        this_thread::sleep_for (chrono::seconds (1));
+#endif
       }
     }
 
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