On Tue, May 28, 2024 at 12:49 PM Paul Eggert <eggert@xxxxxxxxxxx> wrote: > > On 2024-05-28 08:02, Jakub Jelinek wrote: > > even for C GCC updates the default > > True, but C seems to be different, in that using a later-than-default > -std=whatever is more likely to help than hurt, because the C > standardization folks are more careful about compatibility. That's what > I've been experiencing with -std=gnu23, for example, even though C23 has > lots of changes from C17. > > > >> > Autoconf should go back to its 2.69 behavior and not mess with the C++ > >> > version as that's more likely to hurt than help. > > > > Yes. > > OK, thanks, I installed the attached. Thanks, though I don't think all that code needs to go; AC_PROG_CXX_STDCXX_EDITION_TRY still looks useful for a project that relies on features from a particular standard. We just don't want AC_PROG_CXX to invoke it. Jason