From ac838a3c051e8f15514f0454b060d00695b372f7 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 9 Apr 2019 10:33:59 +0200
Subject: Add dry-run support to test rules

---
 build2/context.hxx | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'build2/context.hxx')

diff --git a/build2/context.hxx b/build2/context.hxx
index 567786d..a8d6833 100644
--- a/build2/context.hxx
+++ b/build2/context.hxx
@@ -240,6 +240,8 @@ namespace build2
   {
     ~wait_guard () noexcept (false);
 
+    wait_guard (); // Empty.
+
     explicit
     wait_guard (atomic_count& task_count,
                 bool phase = false);
@@ -251,6 +253,14 @@ namespace build2
     void
     wait ();
 
+    // Note: move-assignable to empty only.
+    //
+    wait_guard (wait_guard&&);
+    wait_guard& operator= (wait_guard&&);
+
+    wait_guard (const wait_guard&) = delete;
+    wait_guard& operator= (const wait_guard&) = delete;
+
     size_t start_count;
     atomic_count* task_count;
     bool phase;
-- 
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