[Bug libstdc++/50745] New: proposal to make visibility of namespace gcc configurable

[vincenzo.innocente at cern dot ch]

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

             Bug #: 50745
           Summary: proposal to make visibility of namespace gcc
                    configurable
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: libstdc++
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: vincenzo.innoce...@cern.ch
                CC: b...@redhat.com, ja...@gcc.gnu.org, pa...@gcc.gnu.org


following the discussion in PR50348 I would like to suggest to make
the visibility of namespace gcc configurable.
This will allow developers that build gcc themselves to experiment and
eventually choose the visibility that best fit their application.

something like
namespace std _GLIBCXX_STD_VISIBILITY {…}

with _GLIBCXX_STD_VISIBILITY properly set at configure time.

std::exception is already protected with #pragma by the way and should of
course stay like that.