https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95700
--- Comment #14 from Ilya Leoshkevich <iii at linux dot ibm.com> --- gcc113 has 4.8.4, which is a bit newer. But in any case, according to https://gcc.gnu.org/projects/cxx-status.html, gcc should support nullptr since 4.6. Could you please post the failing compiler invocation command? In the meantime I will build gcc 4.8.1 on gcc113 and try to build master with it.