clang still can't build mir without -DMIR_DISABLE_INPUT=ON

clang still can't build mir without -DMIR_DISABLE_INPUT=ON.

cmake .. -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
make
...
In file included from /home/dan/bzr/mir/toy/3rd_party/android-input/android/frameworks/base/services/input/InputDispatcher.cpp:46:
In file included from /home/dan/bzr/mir/toy/3rd_party/android-input/android/frameworks/base/services/input/InputDispatcher.h:20:
In file included from /home/dan/bzr/mir/toy/3rd_party/android-input/android/frameworks/base/include/androidfw/Input.h:27:
In file included from /home/dan/bzr/mir/toy/3rd_party/android-deps/std/Vector.h:23:
In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/4.7/../../../../include/c++/4.7/vector:62:
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.7/../../../../include/c++/4.7/bits/stl_construct.h:77:38: error:
      call to implicitly-deleted copy constructor of
      'boost::asio::posix::basic_stream_descriptor<boost::asio::posix::stream_descriptor_service>'
    { ::new(static_cast<void*>(__p)) _T1(std::forward<_Args>(__args)...); }
                                     ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
...