[Bug libstdc++/51813] [4.7 Regression] -fvisibility=hidden causes std::codecvt members to be undefined

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51813

--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-01-13 16:24:07 UTC ---
Eh, thanks for the analysis. Is there some sort of conservative option here? I
don't think we want to take risks at this stage only for the sake of hiding a
few more symbols ws 4.6. Could we somehow convince the compiler that mbstate_t
is not hidden?