Re: inter-file links, PDF, and underscore in file names

[Ralf Wildenhues]

And another related bug:

* Ralf Wildenhues wrote on Sat, Mar 15, 2008 at 11:23:37AM CET:
> 
> cat >foo.texi <<'END'
> \input texinfo
> @setfilename foo.info
> @settitle Foo
> @titlepage
> @title Foo
> @end titlepage

If I add
  @set SECOND bar

here,

> @node Top
> @top Foo
> @menu
> * foo::                         foo
> @end menu
> @node foo
> @chapter foo
> @ref{Top,,, bar}

and change this line to
@ref{Top,,, @value{SECOND}}

> @ref{Top,,, foo_bar}
> @bye
> END

then makeinfo fails.  So @value's are not allowed in the fourth argument
of a ref.  Can this restriction be lifted also?

Thanks,
Ralf

./foo.texi:18: TeX capacity exceeded, sorry [input stack size=1500].
@makevalueexpandable ->@let @value
                                   = @expandablevalue @catcode 
address@hidden@other @c...

@value ->@begingroup @makevalueexpandable
                                          @valuexxx
@makevalueexpandable ->@let @value
                                   = @expandablevalue @catcode 
address@hidden@other @c...

@value ->@begingroup @makevalueexpandable
                                          @valuexxx
@makevalueexpandable ->@let @value
                                   = @expandablevalue @catcode 
address@hidden@other @c...

@value ->@begingroup @makevalueexpandable
                                          @valuexxx
...
l.18 @ref{Top,,, @value{SECOND}}