Hi, I'm checking for BOOST_NO_CXX11_HDR_MEMORY to include <memory> file with gcc-4.6.2 C++0x and while the file is there (it was a C++98 file),it is not defining in particular pointer_traits and allocator_traits Could the following patch be applied? Best, Vicente svn diff stdlib/libstdcpp3.hpp Index: stdlib/libstdcpp3.hpp =================================================================== --- stdlib/libstdcpp3.hpp (revision 86431) +++ stdlib/libstdcpp3.hpp (working copy) @@ -154,9 +154,11 @@ // Note that although <chrono> existed prior to 4.7, "stead_clock" is spelled "monotonic_clock" // so 4.7.0 is the first truely conforming one. # define BOOST_NO_CXX11_HDR_CHRONO +// C++11 header not yet (fully!) implemented, e.g. pointer_traits and allocator_traits. +# define BOOST_NO_CXX11_HDR_MEMORY # define BOOST_NO_CXX11_ALLOCATOR #endif -// C++0x headers not yet (fully!) implemented +// C++11 headers not yet (fully!) implemented // # define BOOST_NO_CXX11_HDR_THREAD # define BOOST_NO_CXX11_HDR_TYPE_TRAITS