Fix compatibility with gcc 4.6

Author: mgreter

patches/0006-Fix-keywords-override-final-and-nullptr.patch

@@ -62,7 +62,7 @@ index 014e4fa1..df49612a 100644
 +  #define GCC_VERSION (__GNUC__ * 10000 \
 +                       + __GNUC_MINOR__ * 100 \
 +                       + __GNUC_PATCHLEVEL__)
-+  #if GCC_VERSION < 40500
++  #if GCC_VERSION < 40600
 +    #define nullptr NULL
 +    // just consume them
 +    #define override