[Bug ada/80007] --disable-bootstrap with gnat-5 leads to failed gnat-7 build on aarch64

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80007

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So without --disable-bootstrap, the build is successive?

If so then the bug is in GCC 5 rather than GCC 7.