__empty in cdefs.h conflicts with g++/bits/stl_deque.h

[Rin Okuyama <rokuyama%rk.phys.keio.ac.jp@localhost>]

Hi,

Build failure occurs after introduction of __empty to sys/cdefs.h.
It seems to conflict with g++/bits/stl_deque.h.

Thanks
rin

--- nv50_ir_lowering_gm107.pico ---
In file included from /var/build/dest/i386/usr/include/g++/deque:64:0,
                 from /var/build/xsrc/external/mit/MesaLib/dist/src/gallium/driv
ers/nouveau/codegen/nv50_ir.h:29,
                 from /var/build/xsrc/external/mit/MesaLib/dist/src/gallium/driv
ers/nouveau/codegen/nv50_ir_lowering_gm107.cpp:24:
/var/build/dest/i386/usr/include/g++/bits/stl_deque.h: In member function 'std::
_Deque_base<_Tp, _Alloc>::_Deque_impl std::_Deque_base<_Tp, _Alloc>::_M_move_imp
l()':
/var/build/dest/i386/usr/include/g++/bits/stl_deque.h:647:21: error: expected ';
' before '{' token
  _Deque_base __empty{__alloc};
                     ^
/var/build/dest/i386/usr/include/g++/bits/stl_deque.h:648:9: error: invalid use
of 'void'
  __empty._M_initialize_map(0);
         ^
/var/build/dest/i386/usr/include/g++/bits/stl_deque.h:652:30: error: invalid use
 of 'void'
  _M_impl._M_swap_data(__empty._M_impl);
                              ^