--- CMakeLists.txt.orig	2015-10-21 17:26:38 UTC
+++ CMakeLists.txt
@@ -15,6 +15,9 @@ find_package(OptionalAddSubdirectory REQ
 
 option(USE_STATIC_MSVCRT "Use a static Visual C++ Runtime when building with MSVC")
 
+if(UNIX)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+endif()
 if(MSVC AND USE_STATIC_MSVCRT)
 foreach(flag_var
         CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
