On [arch]-unknown-openbsd-egnat* links as egcc, eg++, egfortran, ...

Hi,

I am porting GPRbuild into OpenBSD and it appears that egcc, eg++
and egfortran all have hard links to [arch]-unknown-openbsd-X.
GPRbuild uses these to distinguish compilers and operate with the
appropiate one. Is there any reason why gnat does not follow the
same convention?

Cheers