From 63f6a8256e3f9fb47cb941be63baa70e2be48d3b Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 2 Feb 2017 15:35:44 +0200
Subject: Implement target_set locking, including extension update

---
 build2/algorithm.cxx | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'build2/algorithm.cxx')

diff --git a/build2/algorithm.cxx b/build2/algorithm.cxx
index e8e7777..734c545 100644
--- a/build2/algorithm.cxx
+++ b/build2/algorithm.cxx
@@ -53,7 +53,13 @@ namespace build2
     // @@ OUT: for now we assume the prerequisite's out is undetermined.
     //         Would need to pass a pair of names.
     //
-    return search (*tt, n.dir, dir_path (), n.value, ext, &s, n.proj);
+    return search (*tt,
+                   n.dir,
+                   dir_path (),
+                   n.value,
+                   ext ? &*ext : nullptr,
+                   &s,
+                   n.proj);
   }
 
   target*
@@ -374,7 +380,7 @@ namespace build2
 
     // Target is in the out tree, so out directory is empty.
     //
-    fsdir* r (&search<fsdir> (d, dir_path (), string (), nullopt, nullptr));
+    fsdir* r (&search<fsdir> (d, dir_path (), string (), nullptr, nullptr));
     match (ml, a, *r);
     t.prerequisite_targets.emplace_back (r);
     return r;
-- 
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