[Ada] multilib patch take three

[Paolo Bonzini]

Laurent GUERBY wrote:
> On Fri, 2008-07-25 at 10:55 +0000, Joseph S. Myers wrote:
>> i686-linux-gnu --enable-targets=all and x86_64-linux-gnu are equivalent, 
>> differing only in whether the default is 32-bit or 64-bit.  Do you select 
>> the right files for both multilibs of i686-linux-gnu, as well as for both 
>> multilibs of x86_64-linux-gnu?  (Some targets have the 32-bit-default as 
>> the only or the normal target, e.g. Solaris and Darwin.)
> 
> I didn't know about --enable-targets=all so I'd say this case is
> not handled by the current pre-patch on i686 but I will work on adding
> support for it.

I think you just need to check for a /64 multilib and change the arch 
accordingly.

Paolo