From 912ac87012ffc2fd0c6fb21823a0244c787ce5ba Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 18 Apr 2022 07:38:22 +0200
Subject: Avoid locking target set if in load phase

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

(limited to 'libbuild2/file.cxx')

diff --git a/libbuild2/file.cxx b/libbuild2/file.cxx
index d789d20..31db943 100644
--- a/libbuild2/file.cxx
+++ b/libbuild2/file.cxx
@@ -2880,6 +2880,9 @@ namespace build2
 
       if (!t || *t == nullptr)
       {
+        // Note: we need the lock because process_path() call below is not
+        // MT-safe.
+        //
         pair<target&, ulock> r (insert_target (trace, ctx, tt, p));
         t = &r.first;
 
-- 
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