// VC 7.x isn't as bad as VC6 and doesn't give these warnings but eVC (which
// defines _MSC_VER as 1201) does need to be included as it's VC6-like
#if defined(__VISUALC__) && __VISUALC__ <= 1201
+ // these warning have to be disabled and not just temporarily disabled
+ // because they will be given at the end of the compilation of the
+ // current source and there is absolutely nothing we can do about them so
+ // disable them before warning(push) below
+
+ // 'foo': unreferenced inline function has been removed
+ #pragma warning(disable:4514)
+
+ // 'function' : function not inlined
+ #pragma warning(disable:4710)
+
+ // 'id': identifier was truncated to 'num' characters in the debug info
+ #pragma warning(disable:4786)
+
// MSVC 5 does not have this
#if __VISUALC__ > 1100
// we have to disable (and reenable in afterstd.h) this one because,
// 'expression' : signed/unsigned mismatch
#pragma warning(disable:4018)
+ // 'identifier' : unreferenced formal parameter
+ #pragma warning(disable:4100)
+
// 'conversion' : conversion from 'type1' to 'type2',
// possible loss of data
#pragma warning(disable:4244)
// 'identifier' use the following syntax
#pragma warning(disable:4663)
#endif
-
- // these warning have to be disabled and not just temporarily disabled
- // because they will be given at the end of the compilation of the
- // current source and there is absolutely nothing we can do about them
-
- // 'foo': unreferenced inline function has been removed
- #pragma warning(disable:4514)
-
- // 'function' : function not inlined
- #pragma warning(disable:4710)
-
- // 'id': identifier was truncated to 'num' characters in the debug info
- #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