--- old/src/solaris/native/common/jdk_util_md.h	2013-03-08 17:08:00.137629552 -0800
+++ new/src/solaris/native/common/jdk_util_md.h	2013-03-08 17:08:00.013629554 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -23,4 +23,24 @@
  * questions.
  */
 
-// Currently, there are no unix specific functions defined.
+#ifndef JDK_UTIL_MD_H
+#define JDK_UTIL_MD_H
+
+// checking for nanness
+#ifdef __solaris__
+#include <ieeefp.h>
+#define ISNANF(f) isnanf(f)
+#define ISNAND(d) isnand(d)
+#elif defined(MACOSX)
+#include <math.h>
+#define ISNANF(f) isnan(f)
+#define ISNAND(d) isnan(d)
+#elif defined(__linux__) || defined(_ALLBSD_SOURCE)
+#include <math.h>
+#define ISNANF(f) isnanf(f)
+#define ISNAND(d) isnan(d)
+#else
+#error "missing platform-specific definition here"
+#endif
+
+#endif /* JDK_UTIL_MD_H */