[Minor fixes] : Changes compiler to C14 only

CMakeLists.txt

@@ -12,21 +12,9 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall   -O3")
 set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -march=native")
 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -march=native")
 
-# Check C++11 or C++0x support
-include(CheckCXXCompilerFlag)
-CHECK_CXX_COMPILER_FLAG("-std=c++14" COMPILER_SUPPORTS_CXX14)
-CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
-if(COMPILER_SUPPORTS_CXX11)
-   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
-   add_definitions(-DCOMPILEDWITHC14)
-   message(STATUS "Using flag -std=c++14.")
-elseif(COMPILER_SUPPORTS_CXX0X)
-   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
-   add_definitions(-DCOMPILEDWITHC0X)
-   message(STATUS "Using flag -std=c++0x.")
-else()
-   message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
-endif()
+set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_EXTENSIONS OFF)
+add_definitions(-DCOMPILEDWITHC14)
 
 LIST(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake_modules)