Index: lldb/trunk/cmake/modules/LLDBConfig.cmake
===================================================================
--- lldb/trunk/cmake/modules/LLDBConfig.cmake
+++ lldb/trunk/cmake/modules/LLDBConfig.cmake
@@ -88,32 +88,6 @@
 include_directories(../clang/include)
 include_directories("${CMAKE_CURRENT_BINARY_DIR}/../clang/include")
 
-# lldb requires c++11 to build. Make sure that we have a compiler and standard
-# library combination that can do that.
-if (NOT MSVC)
-  # gcc and clang require the -std=c++0x or -std=c++11 flag.
-  if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU" OR
-      "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
-    if (NOT ("${CMAKE_CXX_FLAGS}" MATCHES "-std=c\\+\\+0x" OR
-             "${CMAKE_CXX_FLAGS}" MATCHES "-std=gnu\\+\\+0x" OR
-             "${CMAKE_CXX_FLAGS}" MATCHES "-std=c\\+\\+11" OR
-             "${CMAKE_CXX_FLAGS}" MATCHES "-std=gnu\\+\\+11"))
-      if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-        if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.7")
-          set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
-        else()
-          set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
-        endif()
-      else()
-        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
-      endif()
-    endif()
-  endif()
-elseif (MSVC_VERSION LESS 1700)
-  message(FATAL_ERROR "The selected compiler does not support c++11 which is "
-          "required to build lldb.")
-endif()
-
 # Disable GCC warnings
 check_cxx_compiler_flag("-Wno-deprecated-declarations"
                         CXX_SUPPORTS_NO_DEPRECATED_DECLARATIONS)