other/931: VMS support looks bitrotten

[Joseph S. Myers]

On 2 Apr 2002 neil@gcc.gnu.org wrote:

>     I believe VMS support is OK for 3.1 now?  Douglas Rupp did a lot
> of work on this recently.

Alpha/OpenVMS support may be OK - it's for him to comment in this PR if
so.  Maybe the PR should be assigned to him.

The file gcc.hlp is still present, and may be bitrotten.  The docs in
install-old.texi and vms.texi are definitely out of date and need a
thorough overhaul.  The current install manual install.texi needs to say 
something about installing on VMS.

A decision is needed about whether VAX VMS is in principle supported
(albeit maybe bitrotten) or is desupported.  This should probably depend
on whether it can use the Unix build procedure - if no version of VAX VMS
can use the Unix build procedure, VAX VMS should probably be desupported.

-- 
Joseph S. Myers
jsm28@cam.ac.uk