[Bug libstdc++/66030] [5.1.0] std::codecvt_byname missing from libstdc++ DLL

[jroivas at iki dot fi]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66030

--- Comment #13 from Jouni Roivas <jroivas at iki dot fi> ---
That patch seems to work. Thanks.