re-fix MinGW DLL compilation

[wxWidgets.git] / include / wx / beforestd.h

diff --git a/include/wx/beforestd.h b/include/wx/beforestd.h
index 684b8428c38f018ec73baa842b2b08f2e38fdbce..5bf6377113674fdb03a8bf811a943fa5bb9a8cc6 100644 (file)
--- a/include/wx/beforestd.h
+++ b/include/wx/beforestd.h
@@ -63,3 +63,13 @@
     #pragma warning(disable:4786)
 #endif // VC++ < 7
 
     #pragma warning(disable:4786)
 #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)
+#endif