46 GCC HEAD regressions, 40 new, with your patch on 2005-04-01T13:51:51Z.

[Gabriel Dos Reis]

Doug Gregor <doug.gregor@gmail.com> writes:

| This is due to a symbol clash with Darwin headers, which define the
| macro _T. Patch committed as obvious to mainline and 4.0. Sorry about
| the noise.

This "_T" name stuff is a recurring trap.   C++STYLE says:
  [...] See BADNAMES for a list of forbidden names.  (The most
  tempting of these seem to be and "_T" and "__sz".) 

-- Gaby