[Bug c/66066] [6 Regression] r222889 causes bogus error: initializer element is not constant

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66066

--- Comment #17 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Yeah, fixing PR66127 in some way is a prerequisite for the patch to go in. 
PR66127 is being discussed in the ML, where I've posted an updated version of
the patch for this PR.