Get rid of underscore.c

[Richard Earnshaw]

> On Fri, 20 Sep 2002 08:00:08 -0700, "H. J. Lu" <hjl@lucon.org> wrote:
> 
> > How about this? Move cxxfilt.c to libiberty, but never compile it in
> > libiberty. Buy default, binutils will compile cxxfilt in its binutils
> > directory.
> 
> Why?  Why build c++filt in binutils?  Why?
> 
> The demanger should be bundled with the mangler, i.e. the compiler.

Why should somebody using a.n.other compiler need to install gcc to get 
the demangler?

I'm not sure there is a satisfactory answer to this question, short of a 
separate package for just the demangler; and that really doesn't suit 
anybody either.

R.