Hello,

I cannot compile boost with clang 3.1 on Mac os x 10.8.2.

This is what I did:

    ./boostrap.sh --with-toolset=clang

    ./b2 toolset=clang cxxflags="-std=c++11 -stdlib=libc++" linkflags="-stdlib=libc++"

I also tried without chrono, test, wave and signals.

I tried a user-config.jam with

    using clang-darwin

This is the error I have for almost every file:

    /boost/config/select_stdlib_config.hpp:18:12: fatal error: 'cstddef' file not found

It is kind of similar to [http://stackoverflow.com/questions/8486077/how-to-compile-link-boost-with-clang-libc][1] 

I do have the latest Xcode 4.5.2 with the command line tools installed.

Here is part of the console output:

    Kikohs:trunk kikohs$ ./b2 toolset=clang cxxflags="-std=c++11 -stdlib=libc++" linkflags="-stdlib=libc++"

    Performing configuration checks

    - 32-bit                   : no

    - 64-bit                   : yes

    - x86                      : yes

    - has_icu builds           : no

    warning: Graph library does not contain MPI-based parallel components.

    note: to enable them, add "using mpi ;" to your user-config.jam

        - gcc visibility           : yes

        - long double support      : no

    warning: skipping optional Message Passing Interface (MPI) library.

    note: to enable MPI support, add "using mpi ;" to user-config.jam.

    note: to suppress this message, pass "--without-mpi" to bjam.

    note: otherwise, you can safely ignore this message.

Building the Boost C++ Libraries.

    - iconv (libc)             : no

    - iconv (separate)         : yes

    - icu                      : no

    - icu (lib64)              : no

Component configuration:

    - atomic                   : building

    - chrono                   : building

    - context                  : building

    - date_time                : building

    - exception                : building

    - filesystem               : building

    - graph                    : building

    - graph_parallel           : building

    - iostreams                : building

    - locale                   : building

    - math                     : building

    - mpi                      : building

    - program_options          : building

    - python                   : building

    - random                   : building

    - regex                    : building

    - serialization            : building

    - signals                  : building

    - system                   : building

    - test                     : building

    - thread                   : building

    - timer                    : building

    - wave                     : building

    ...patience...

    ...patience...

    ...patience...

    ...patience...

    ...found 8672 targets...

    ...updating 1127 targets...

    common.mkdir bin.v2/libs/atomic

    common.mkdir bin.v2/libs/atomic/build

    common.mkdir bin.v2/libs/atomic/build/clang-darwin-4.2.1

    common.mkdir bin.v2/libs/atomic/build/clang-darwin-4.2.1/debug

    clang-darwin.compile.c++ bin.v2/libs/atomic/build/clang-darwin-4.2.1/debug/lockpool.o

    In file included from libs/atomic/src/lockpool.cpp:1:

    ./boost/atomic.hpp:10:10: fatal error: 'cstddef' file not found

    #include <cstddef>

         ^

    1 error generated.

    "clang++" -x c++ -O0 -g -std=c++11 -stdlib=libc++ -O0 -fno-inline -Wall -g -DBOOST_ALL_NO_LIB=1 -DBOOST_ATOMIC_DYN_LINK=1 -DBOOST_ATOMIC_SOURCE -I"." -c -o "bin.v2/libs/atomic/build/clang-darwin-4.2.1/debug/lockpool.o" "libs/atomic/src/lockpool.cpp"

Any help would be greatly appreciated,

Thank you,

Kikohs