[Bug c++/63268] Ambiguous non-specialized static template scope is accepted

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63268

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This is even documented as a fix in GCC 4.5, see
https://gcc.gnu.org/gcc-4.5/changes.html#cplusplus