import std.stdio;

class Foo {
	static int foo = 42;
	static this() {
		writefln("static constructor");
		foo = 128;
	}
}

int main() {
	writefln("main: %s", Foo.foo);
	return 0;
}

will print
"main: 42"

Static constructor never called.

(Same code works as expected on normal Leopard, this has only been seen on Snow Leopard)