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

[wen...@mitsuba-renderer.org]

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

--- Comment #4 from Wenzel Jakob <wen...@mitsuba-renderer.org> ---
I'm pretty sure this is a recent regression -- GCC was able to compile the code
on Bug 77629 a month ago.