[Bug c++/67313] [6 Regression] ICE: in vague_linkage_p, at cp/decl2.c:1878 with -fno-weak and variadic template

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67313

--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> ---
This is already fixed, I'm adding the testcase and closing the bug.