Get rid of underscore.c

[Andrew Cagney]

> On 12 Sep 2002 19:42:36 +0100, Nick Clifton <nickc@redhat.com> wrote:
> 
> 
>> But why should G++ have its own demangler ?  Why not use the binutils one
>> ?  (Possible answer: because the G++ guys want to control the demangler ?)
> 
> 
> Precisely.  The demangler frequently needs to change to reflect changes in
> the compiler.  If the demangler is part of the compiler package, updating
> one involves updating the other.  If it's in binutils, that means I need to
> update binutils to deal with a compiler issue, something I currently only
> do every few months.  My life was made easier when c++filt moved to gcc.

Did anyone from GCC even think to propose this binutils change on the 
binutils list?

> Why should binutils have its own demangler?

How about GCC bundle in a program called g++filt while binutils bundle 
c++filt.

Move the program to a new ``<root>/cppfilt'' directory so that anyone 
can share!  Trying to to move this utility to <root>/gcc is definitly wrong.

Andrew