diff --git a/CMakeLists.txt b/CMakeLists.txt
index c667c50007..8ce5ba91cd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -188,21 +188,6 @@ if (NOT DEFINED CMAKE_C_STANDARD)
   set(CMAKE_C_STANDARD 99)
 endif()
 
-# Add c++11 flags
-if (NOT DEFINED CMAKE_CXX_STANDARD)
-  set(CMAKE_CXX_STANDARD 11)
-else()
-  if (CMAKE_CXX_STANDARD LESS 11)
-    message(FATAL_ERROR "CMAKE_CXX_STANDARD is less than 11, please specify at least SET(CMAKE_CXX_STANDARD 11)")
-  endif()
-endif()
-if (NOT DEFINED CMAKE_CXX_STANDARD_REQUIRED)
-  set(CMAKE_CXX_STANDARD_REQUIRED ON)
-endif()
-if (NOT DEFINED CMAKE_CXX_EXTENSIONS)
-  set(CMAKE_CXX_EXTENSIONS OFF)
-endif()
-
 if (NOT DEFINED CMAKE_POSITION_INDEPENDENT_CODE)
   set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
 endif()