Thanks to the heroic work of Nicholas Nethercote and Julian
Seward, the Mac OS X port of Valgrind is now
available on Valgrind's trunk. This is a big step forward
towards an official Valgrind release with Mac OS X support.
For those of you with Snow Leopard
seeds, Valgrind won't
work. Valgrind operates at the low-level unsupported guts of the
kernel/Libc interface. When the kernel and Libc change, Valgrind
needs to adapt or die. Valgrind support for Snow Leopard will not
be available until the open-source release of Snow Leopard's
kernel and Libc at the earliest, which in turn is not before Snow
Leopard itself ships.