No rule to make target `maybe-install-tix', needed by `install-gdb'

[Nathanael Nerode]

Martin M. Hunt wrote:
> The checked-in toplevel Makefile.in was not generated from the
> Makefile.def in CVS.  Run 
> "autogen Makefile.def" to regenerate.

Um, did I do a broken commit?  I'll try to fix things.

--Nathanael