Patch: add gc-sections warning and H8 support

[Alan Modra]

On Wed, Dec 31, 2003 at 11:00:03AM -0600, Grant Edwards wrote:
> 
> The attached patch adds gc-sections support for the H8 target
> and adds a warning (for all targets) if the gc-sections option
> is ignored.

Applied with a few tweaks.  I replaced your multiple elf_gc_sections
warnings with just one warning, because I think giving reasons for a
warning belongs in an info file rather than the executable.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre