[Bug libstdc++/50745] proposal to make visibility of namespace std configurable

[vincenzo.innocente at cern dot ch]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50745

--- Comment #2 from vincenzo Innocente <vincenzo.innocente at cern dot ch> 2011-10-16 14:20:19 UTC ---
I want just to remove _GLIBCXX_VISIBILITY(default) from namespace std so that
visibility of std::xyz can be inherited from the outer scope for instance when
compiling with -fvisibility=hidden.
It is mostly to make template instantiation local to user shared libraries,
surely not to make std::string local to libstdc++.so!