Disable array_init_test_cx for GCC 4.x

test/array_init_test_cx.cpp

@@ -12,6 +12,10 @@
 
 BOOST_PRAGMA_MESSAGE("Test skipped because BOOST_NO_CXX11_CONSTEXPR is defined")
 
+#elif BOOST_WORKAROUND(BOOST_GCC, < 50000)
+
+BOOST_PRAGMA_MESSAGE("Test skipped because BOOST_GCC < 50000")
+
 #else
 
 #define STATIC_ASSERT(...) static_assert(__VA_ARGS__, #__VA_ARGS__)