From a7efabf301f23364ac2335c80c5e1e712bc43204 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Thu, 10 Nov 2016 00:26:54 +0300
Subject: Add cat, false and true builtins

---
 build2/types | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'build2/types')

diff --git a/build2/types b/build2/types
index 9b3dbc7..783aff0 100644
--- a/build2/types
+++ b/build2/types
@@ -8,6 +8,7 @@
 #include <tuple>
 #include <vector>
 #include <string>
+#include <future>
 #include <memory>           // unique_ptr, shared_ptr
 #include <utility>          // pair, move()
 #include <cstddef>          // size_t, nullptr_t
@@ -63,6 +64,8 @@ namespace build2
   using std::istream;
   using std::ostream;
 
+  using std::future;
+
   // Exceptions. While <exception> is included, there is no using for
   // std::exception -- use qualified.
   //
-- 
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