From 1cf1603cae3064aff734f52d23c06098e81a8111 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 28 Jul 2015 15:01:10 +0200
Subject: Install module genesis

---
 build/config/utility | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'build/config')

diff --git a/build/config/utility b/build/config/utility
index e1d81a7..713ab01 100644
--- a/build/config/utility
+++ b/build/config/utility
@@ -41,6 +41,13 @@ namespace build
     const T*
     optional (scope& root, const char* name);
 
+    template <typename T>
+    inline const T*
+    optional (scope& root, const std::string& name)
+    {
+      return optional<T> (root, name.c_str ());
+    }
+
     // Add all the values from a variable to the C-string list. T is
     // either target or scope.
     //
-- 
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