[Bug ada/80117] Standard'Word_Size is wrong for aarch64 ILP32

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80117

--- Comment #22 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Timo Teräs from comment #21)
> This caused a regression for non-multilib builds. Now my non-multilib lp64
> build fails with:
> a-cfinve.ads:245:04: warning: in instantiation at a-coboho.adb:55
> a-cfinve.ads:245:04: warning: types for unchecked conversion have different
> sizes
> 
> Probably because the logic added in this patch to Makefile.in picks up
> 64-bit file only when multilib is enabled.

On which branch?  The logic for GCC 7 and GCC 8 are different as Makefile.in
changes are not used any more.  Also did you modify anything as multilib itself
should be enabled anyways for aarch64 due to the use /lib64