Revision 228

[tcl8.5]
  * Added -fno-unit-at-a-time option to prevent stack corruption in a
    particular use case.
  * Added /usr/local/lib/tcltk, /usr/local/share/tcltk, /usr/lib/tcltk,
    /usr/share/tcltk to auto_path variable. These directories are to be
    contain Tcl/Tk packages according to upcoming Debian Tcl/Tk Policy
    (preliminary version see at
    http://pkg-tcltk.alioth.debian.org/tcltk-policy.html/)