doc/invoke.texi currently broken: here's a fix

[Joseph S. Myers]

On Sat, 9 Mar 2002, Phil Edwards wrote:

> configure (on the branch, at least) needs to also disable /installing/
> the nonexistent info files, now that I think of it.

Everything associated with not building info if makeinfo isn't current,
and not installing info files if not present, should already have been
dealt with before 3.0 as part of the removal of the old version of Texinfo
that was in the GCC source tree, and the consequent inclusion of generated
info files in release tarballs.

-- 
Joseph S. Myers
jsm28@cam.ac.uk