Continue toplevel cleanup (GCC library handling for unsupported targets etc.)

[Joseph S. Myers]

On Wed, 30 Mar 2011, Richard Earnshaw wrote:

> > 2011-03-29  Joseph Myers  <joseph@codesourcery.com>
> > 
> 
> > 	(arm-*-coff): Don't disable libgcj.
> > 	(arm*-*-linux-gnueabi): Remove useless assignment.
> > 	(arm-*-riscix*): Don't disable libgcj.
> 
> 
> RISC iX support was removed from GCC years ago.  Looks like a tiny
> fragment left over that wasn't cleaned up.  The other bits are fine with
> me.

The RISC iX case is much like the Solaris/PowerPC one I commented on in 
<http://gcc.gnu.org/ml/gcc-patches/2011-03/msg01744.html>: it appears 
there is still assembler support.  What I'm doing here is simply cleaning 
things up by removing mentions of *GCC* directories for targets without 
GCC support (often ones where GCC support was removed long ago).

It's quite possible that some obsolete targets should have their binutils 
(and newlib) support removed, leading to further toplevel simplification 
(gdb has been more active in pruning unmaintained targets - but it's also 
the case that a proliferation of targets is more likely to cause problems 
there than in binutils and newlib).  But I think it's really for the 
binutils maintainers to work out what they think is worth removing.

-- 
Joseph S. Myers
joseph@codesourcery.com