So maybe it would be a good idea to put a sentance or two to that
effect into the Texinfo manual - perhaps it is already there
The possibility of having a texinfo.cnf has been mentioned in the manual
for umpteen years, since I first implemented it.
Another idea to consider: If such local prefs appear in the source
file, makeinfo and texi2dvi could emit a warning.
Virtually every existing document would cause such a warning, so I don't
think users would be happy about it, but rather just annoyed.
Unfortunately.
k