https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92826
--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> --- I thought the name "pedantic" made it clear that it is going to warn about things that are just fine, and you shouldn't use it... You can disable the warning by inserting __extension__ in your code. It might be a good idea for quadmath.h to use __extension__ in its macro definitions. Or the warning could check if the code actually lies in a system header, as so many other warnings do.
