From 1f19ac4da5af812891be305721f3e3b7eed62cc3 Mon Sep 17 00:00:00 2001
From: Stephen Kelly <steveire@gmail.com>
Date: Sun, 11 Jan 2015 18:44:49 +0100
Subject: [PATCH] Features: Adjust cxx_variadic_templates unit test for GNU <
 4.7.
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The unit test for this fails with GNU 4.6:

 Building CXX object CMakeFiles/test_cxx_variadic_templates.dir/cxx_variadic_templates.cpp.o
   CompileFeatures/cxx_variadic_templates.cpp: In static member function ‘static int Interface<I, Is>::accumulate()’:
   CompileFeatures/cxx_variadic_templates.cpp:18:31: sorry, unimplemented: cannot expand ‘Is ...’ into a fixed-length argument list
 CMakeFiles/test_cxx_variadic_templates.dir/build.make:54: recipe for target 'CMakeFiles/test_cxx_variadic_templates.dir/cxx_variadic_templates.cpp.o' failed

The workaround is to use a specialization:

 http://stackoverflow.com/questions/1989552
 http://stackoverflow.com/questions/11297376
---
 Tests/CompileFeatures/cxx_variadic_templates.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Tests/CompileFeatures/cxx_variadic_templates.cpp b/Tests/CompileFeatures/cxx_variadic_templates.cpp
index 1d5a7061b..a80e157e6 100644
--- a/Tests/CompileFeatures/cxx_variadic_templates.cpp
+++ b/Tests/CompileFeatures/cxx_variadic_templates.cpp
@@ -1,4 +1,4 @@
-template<int I, int... Is>
+template<int... Is>
 struct Interface;
 
 template<int I>
@@ -11,7 +11,7 @@ struct Interface<I>
 };
 
 template<int I, int... Is>
-struct Interface
+struct Interface<I, Is...>
 {
   static int accumulate()
   {