From becea217436a79b7ef37a023da6cb4c560225a71 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 2 Dec 2015 14:24:10 +0200
Subject: Redo extension derivation for file{}, doc{}, and cli{}

We now first check the 'extension' variable, then use the default.
---
 build/target | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'build/target')

diff --git a/build/target b/build/target
index 2aea7ae..69f8f4f 100644
--- a/build/target
+++ b/build/target
@@ -1051,9 +1051,10 @@ namespace build
   const std::string&
   target_extension_fix (const target_key&, scope&);
 
-  // Get the extension from the variable.
+  // Get the extension from the variable or use the default if none set.
+  // Issue diagnostics and fail if the default is NULL.
   //
-  template <const char* var>
+  template <const char* var, const char* def>
   const std::string&
   target_extension_var (const target_key&, scope&);
 
-- 
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