Multilibs in stage-1

[Richard Biener]

On May 6, 2020 11:15:08 PM GMT+02:00, Uros Bizjak via Gcc <gcc@gcc.gnu.org> wrote:
>Hello!
>
>I wonder, if the build process really needs to build all multilibs in
>stage-1 bootstrap build. IIRC, stage-1 uses system compiler to build
>stage-1 gcc, so there is no need for multilibs, apart from library
>that will be used by stage-1 gcc during compilation of stage-2
>compiler.

Correct. Only stage3 needs those. But IIRC we already avoid building them? Likewise we avoid building libsanitizer and friends in stage 1/2 unless ubsan bootstrap is enabled. 

>Uros.