https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86245
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- __gnu_cxx_ldbl128 inline namespace is not something that is necessarily to be used by all the "g" mangled long doubles, many *LDBL_* symvers symbols are just next to the "e" mangled ones (which are aliases to the "d" mangled ones double in many cases).