Adding build option for C++11 variadic template compiler support

CMakeLists.txt

@@ -821,6 +821,16 @@ if(MSVC)
       hpx_add_definitions(-DBOOST_RESULT_OF_USE_DECLTYPE)
     endif()
 
+    if(MSVC12)
+      hpx_option(HPX_HAVE_CXX11_VARIADIC_TEMPLATES BOOL "Compiler supports C++11 variadic templates (default: ON)." ON ADVANCED)
+    else()
+      hpx_option(HPX_HAVE_CXX11_VARIADIC_TEMPLATES BOOL "Compiler supports C++11 variadic templates (default: OFF)." OFF ADVANCED)
+    endif()
+
+    if(HPX_HAVE_CXX11_VARIADIC_TEMPLATES)
+      hpx_add_definitions(-DHPX_HAVE_CXX11_VARIADIC_TEMPLATES)
+    endif()
+
     hpx_option(HPX_HAVE_CXX11_UNIQUE_PTR BOOL "Compiler supports C++11 std::unique_ptr (default: ON)." ON ADVANCED)
     if(HPX_HAVE_CXX11_UNIQUE_PTR)
       hpx_add_definitions(-DHPX_HAVE_CXX11_STD_UNIQUE_PTR)

examples/hpxla/CMakeLists.txt

@@ -1,16 +1,18 @@
-# Copyright (c) 2007-2012 Hartmut Kaiser
+# Copyright (c) 2007-2013 Hartmut Kaiser
 # Copyright (c) 2011      Bryce Adelstein-Lelbach
 #
 # Distributed under the Boost Software License, Version 1.0. (See accompanying
 # file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 
-set(example_programs
-    blocked_matrix_multiply
-    householder_qr_factorization
-    explicit_qr_algorithm
-   )
+set(example_programs)
 
-#set(blocked_matrix_multiply_FLAGS DEPENDENCIES dataflow_component)
+if(HPX_HAVE_CXX11_VARIADIC_TEMPLATES)
+  set(example_programs
+      blocked_matrix_multiply
+      householder_qr_factorization
+      explicit_qr_algorithm
+     )
+endif()
 
 foreach(example_program ${example_programs})
   set(sources
@@ -35,9 +37,3 @@ foreach(example_program ${example_programs})
                               ${example_program}_exe)
 endforeach()
 
-#set_property(TARGET blocked_matrix_multiply_exe APPEND
-#  PROPERTY COMPILE_DEFINITIONS
-#  "HPX_ACTION_ARGUMENT_LIMIT=10"
-#  "HPX_COMPONENT_CREATE_ARGUMENT_LIMIT=10"
-#  "HPX_FUNCTION_ARGUMENT_LIMIT=13")
-