From 1397444e5de3281431d2174564dfd76fe7b7b32f Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 21 Apr 2016 07:19:03 +0200
Subject: Use hash map/set for targets/prerequisites to resolve key change
 issue

---
 build2/utility | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'build2/utility')

diff --git a/build2/utility b/build2/utility
index e433b5a..e7674c0 100644
--- a/build2/utility
+++ b/build2/utility
@@ -11,7 +11,7 @@
 #include <cassert>  // assert()
 #include <iterator> // make_move_iterator()
 
-#include <butl/utility> // reverse_iterate()
+#include <butl/utility> // combine_hash(), reverse_iterate()
 
 #include <exception>     // uncaught_exception()
 #include <unordered_set>
@@ -31,6 +31,7 @@ namespace build2
 
   // <butl/utility>
   //
+  using butl::combine_hash;
   using butl::reverse_iterate;
 
   // Basic string utilities.
-- 
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