+#endif // VC++ < 7
+
+/**
+ GCC's visibility support is broken for libstdc++ in some older versions
+ (namely Debian/Ubuntu's GCC 4.1, see
+ https://bugs.launchpad.net/ubuntu/+source/gcc-4.1/+bug/109262). We fix it
+ here by mimicking newer versions' behaviour of using default visibility
+ for libstdc++ code.
+ */
+#if defined(HAVE_VISIBILITY) && defined(HAVE_BROKEN_LIBSTDCXX_VISIBILITY)
+ #pragma GCC visibility push(default)