https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85612
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- GCC, ICC, clang and MSVC all reject this code the same way.
[Bug c++/85612] ADL lookup with parameter pack and defaulted argument not considered ambiguous
pinskia at gcc dot gnu.org via Gcc-bugs Wed, 04 Aug 2021 21:28:10 -0700
