src/interface/intf_eject.c, src/misc/threads.c: win32 compilation fix.
  * ./plugins/directx/aout_directx.c, plugins/directx/vout_directx.c,
    ./plugins/directx/vout_events.c: the DirectX notification and event threads
    now use the vlc_thread_create / vlc_thread_ready scheme. Untested.
  * ./configure.in: added a check for inttypes.h and sys/int_types.h.
  * ./configure.in: fixed the HTTP plugin compilation under BeOS.
  * ./plugins/network/ipv6.c: reactivated IPv6 module.