[Bug c++/57317] [4.8/4.9 Regression] bogus and unsuppressible warning: 'YYY' has a base 'ZZZ' whose type uses the anonymous namespace

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57317

--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> ---
(In reply to Paul Pluzhnikov from comment #3)
> but nothing on 4_8-branch.

Look again; it's commit 199104 on gcc-4_8-branch.