ObjC configured --with-objc-gc needs external Boehm gc

Tue Jan 16 17:25:00 GMT 2001

Boehm, Hans writes:
 > The question is really whether the last pointer to an object can point to
 > the inside of the object. If you can get and save a pointer to a field in
 > object A, save it inside object B, and then drop the pointer to A, you need
 > ALL_INTERIOR_POINTERS. Thus C/C++ more or less need it, while Java doesn't.
 > If you can embed C structs inside Objective C objects, I suspect Objective C
 > also needs it?
Then ObjC needs it as well.