From 8ad62d6b00adf657ef7b468778a0964007aca383 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Fri, 24 Mar 2017 14:47:57 +0300
Subject: Fix diagnostics interleaving characters

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

(limited to 'build2/dump.cxx')

diff --git a/build2/dump.cxx b/build2/dump.cxx
index 7055a78..6d055ae 100644
--- a/build2/dump.cxx
+++ b/build2/dump.cxx
@@ -345,6 +345,9 @@ namespace build2
     auto i (scopes.cbegin ());
     assert (&i->second == global_scope);
 
+    // We don't lock diag_stream here as dump() is supposed to be called from
+    // the main thread prior to any other threads being spawned.
+    //
     string ind;
     ostream& os (*diag_stream);
     dump_scope (os, ind, i);
-- 
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