https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85672
--- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> --- Created attachment 44083 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44083&action=edit Restore previous behaviour of #undef _GLIBCXX_USE_FLOAT128 based on configure checks. This still follows the same approach of custom logic instead of autogenerated macros, but restores the old behaviour when support is absent during configuration.
