+//
+// Test whether to support __float128:
+//
+#if defined(_GLIBCXX_USE_FLOAT128) && defined(BOOST_GCC) && !defined(__STRICT_ANSI__)
+//
+// Only enable this when the compiler really is GCC as clang and probably
+// intel too don't support __float128 yet :-(
+//
+# define BOOST_MATH_USE_FLOAT128
+#endif
+//
+// Check for WinCE with no iostream support:
+//
+#if defined(_WIN32_WCE) && !defined(__SGI_STL_PORT)
+# define BOOST_MATH_NO_LEXICAL_CAST
+#endif