https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111170
--- Comment #10 from Costas Argyris <costas.argyris at gmail dot com> --- > I suspect there should be an `AC_ARG_ENABLE` in configure.ac? It doesn't appear to be necessary to me. It also wasn't part of the advice of https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108865#c44 as far as I can tell. >From the two examples given there, with_avrlibc is used just through its shell variable without any corresponding AC_ARG_WITH (couldn't find any with git grep avrlibc anyway). It also worked in my builds which were picking up the new --disable-win32-utf8-manifest option (or its absence), so it doesn't seem to be necessary to make any other changes. Did you get any failures and suspect it's due to AC_ARG_ENABLE missing?
