[Bug c++/69481] ICE with C++11 alias using with templates

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69481

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Wenzel Jakob from comment #4)
> I'm pretty sure this is a recent regression -- GCC was able to compile the
> code on Bug 77629 a month ago.

Did you use a compiler from a release branch? If so --enable-checking=release
is the default there while on the trunk it is always =yes.