Merge pull request #81 from christiankerl/add_enable_cxx11_option

added cmake option to enable c++11

Author: christiankerl

examples/protonect/CMakeLists.txt

@@ -5,6 +5,21 @@ SET(CMAKE_BUILD_TYPE RelWithDebInfo)
 
 SET(MY_DIR ${libfreenect2_SOURCE_DIR})
 
+OPTION(ENABLE_CXX11 "Enable C++11 support" OFF)
+
+IF(ENABLE_CXX11)
+  INCLUDE(CheckCXXCompilerFlag)
+  CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
+  CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
+  IF(COMPILER_SUPPORTS_CXX11)
+	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+  ELSEIF(COMPILER_SUPPORTS_CXX0X)
+	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
+  ELSE()
+    MESSAGE(STATUS "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
+  ENDIF()
+ENDIF(ENABLE_CXX11)
+
 # additional cmake modules
 LIST(APPEND CMAKE_MODULE_PATH ${MY_DIR}/cmake_modules)