https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63810
--- Comment #24 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> ---
(In reply to Lawrence Velázquez from comment #23)
> I don't see anything in version_as_legacy_macro() that specifically deals
> with major <= 9. Could you point me to the offending code?
In the comment above it ("Major numbers are zero-padded if necessary"), and the
sprintf format "%02lu%lu%lu" (which can be "%lu%lu%lu").
