[Bug bootstrap/58572] [4.9 regression] make bootstrap-lean leads to installation failure (doing extra rebuilds and invoking system compiler)

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58572

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Or perhaps if the *prev* directories are missing during install, symlink them
to the latest stage ones for the duration of make install?