[Bug bootstrap/81459] GNAT 7.1.0 build failed on the Debian 9/x86_64

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81459

--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> 3) Next combinations have been tested:  
>  > --enable-languages=c,ada 
>  > --enable-languages=c,c++,ada

This one should be fine.  If this doesn't work, then use the system compiler
instead of GNAT GPL as base compiler.