I modified the patch by using Py_LL() as suggested in a previous comment.

I just would like to say that these fixes are not required to compiling under MSVC5: I was able to compile all the sources as they were, even without changes and this is a great thing.
I have just noticed, from some strange warning messages, that few things required to be fixed, now reduced to correct __STDC__ syntax to some functions (declaring in that manner is wrong anyways, since it's C89) and fix a constant with the right modifier.