The man page for install-info says "The full documentation for install-info is maintained as a Texinfo manual." But the texinfo tar ball (I have checked texinfo-5.2.tar.gz and texinfo-4.13a.tar.gz) doesn't contain any documentation for install-info, other than the man page, which seems to be incomplete and says so itself.
After I wrote the above I did some googling and learned from some older mails on this mailing list that there is a chapter in texinfo.txi about install-info. But this isn't installed by the Makefile; it has to be installed by hand and installing it makes only sense if there is a TeX installation. It certainly will not be found by somebody trying to repair botched up 'dir' files. At the very very least please remove that misleading paragraph from the man page to spare your users frustrating hours of searching where the info files got lost and how they can recreate it. Heinz -- Dr. Heinrich Rommerskirchen Prof.-Schmid-Str. 41 82140 Olching Allemagne