From bbd0f3bb21442a2833916110cbe8e9a07e9f4c1f Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 31 Jul 2015 12:52:20 +0200
Subject: Essential install module functionality

---
 build/config/utility.txx | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'build/config/utility.txx')

diff --git a/build/config/utility.txx b/build/config/utility.txx
index bee8a0b..cffdecf 100644
--- a/build/config/utility.txx
+++ b/build/config/utility.txx
@@ -57,5 +57,29 @@ namespace build
 
       return r;
     }
+
+    template <typename T>
+    void
+    append_options (cstrings& args, T& s, const char* var)
+    {
+      if (auto val = s[var])
+        append_options (args, val.template as<const list_value&> (), var);
+    }
+
+    template <typename T>
+    bool
+    find_option (const char* option, T& s, const char* var)
+    {
+      if (auto val = s[var])
+      {
+        for (const name& n: val.template as<const list_value&> ())
+        {
+          if (n.simple () && n.value == option)
+            return true;
+        }
+      }
+
+      return false;
+    }
   }
 }
-- 
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