Support for sh-symbian-elf target

[Nick Clifton]

Hi Ben,

> One question:
> 
> If the port is to Symbian OS, why does "symbian" appear in the
> manufacturer field of the configure triplet and not the OS field
> (eg. sh-unknown-symbian)?

Because - get this - their OS supports both COFF and ELF binaries and 
they wanted to be able to distinguish between toolchains that generated 
code for a particular file format.  I supposed that strictly speaking 
the configuration triplet should have been "sh-unknown-symbianelf" or 
"sh-unknown-symbiancoff" but that was rather clumsy and also implies 
that they are using a somehow non-standard version of ELF or COFF, when 
in fact they are using perfectly normal versions.

Cheers
   Nick