I was using Pd-extended for a while and I came to like [closebang],  but now I've updated to Miller's .40-1 version.. which doesn't have it.  I found the closeinitbang.diff file on sourceforge, but I don't understand how to apply it to the source package.

I try:

patch closeinitbang.diff

and it hangs up... maybe I'm bad at reading manuals.

cheers,
rich