# include <tr1/unordered_map>
#endif
+#if defined __llvm__ && !defined __clang__ && __GNUC__ == 4 && __GNUC_MINOR__ == 2 && __GNUC_PATCHLEVEL__ == 1
+# error "LLVM-GCC 4.2.1 has broken visibility support."
+#endif
+
int main() {
std::cout << "Hello, World!" << std::endl;
return 0;