diff --git a/CMakeLists.txt b/CMakeLists.txt
index 80584b2555..c59e3f7c07 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -552,6 +552,7 @@ option(UNITTESTS "Build unitests" OFF)
 ########################################
 # Start compiling our code
 #
+add_definitions(-std=c++0x)
 add_subdirectory(Source)
 
 
diff --git a/Source/Core/Common/Src/StdThread.h b/Source/Core/Common/Src/StdThread.h
index 6e9e903561..b64dbf2c4e 100644
--- a/Source/Core/Common/Src/StdThread.h
+++ b/Source/Core/Common/Src/StdThread.h
@@ -7,7 +7,9 @@
 
 #if GCC_VERSION >= GCC_VER(4,4,0) && __GXX_EXPERIMENTAL_CXX0X__
 // GCC 4.4 provides <thread>
+#ifndef _GLIBCXX_USE_SCHED_YIELD
 #define _GLIBCXX_USE_SCHED_YIELD
+#endif
 #include <thread>
 #else