https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87106
--- Comment #15 from Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> --- @Marc, it only now occurs to me that if libstdc++ uses `__is_trivially_relocatable` as its userspace type-trait name, then GCC won't be able to use `__is_trivially_relocatable(T)` as the name of its compiler builtin. (It would be analogous to if libstdc++ had used `__is_trivially_copyable` as the name of a type-trait.) Is there any chance that you could rename `__is_trivially_relocatable` to `__is_trivially_relocatablex` or `__has_trivial_relocatability` or something like that? Is it too late? I hope not.