[Bug c++/101774] using-declaration and typedef alter name for linkage purposes of unnamed struct

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101774

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Not a regression as far as I can tell, GCC 4.1 did the same.