Cross-manual links should work correctly in the next release of makeinfo, and not depend on "being in the same place". We've expended a lot of effort on the problem. You can try the development version if you like. I hope a first pretest will happen fairly soon.
Until then, what I have done is post-process the HTML with perl/sed/ed/whatever to fix the links. Much better than munging the Texinfo source, IMHO. k -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org