+/* Define if all libs needed for ssl support are existing */
+#undef HAVE_SSL
+
+/* Define if we're compiling in support for MD5. */
+#undef HAVE_MD5
+
+/* Define if we're using Solaris libmd5. */
+#undef HAVE_SOLARIS_MD5
+
+/* Define if we're using builtin (GNU) md5.c. */
+#undef HAVE_BUILTIN_MD5
+
+/* First a gambit to see whether we're on Solaris. We'll
+ need it below. */
+#ifdef __sun
+# ifdef __SVR4
+# define solaris
+# endif
+#endif
+
+/* The following several lines can be very dangerous; they can cripple
+ the header files and break compilation in _verY_ non-obvious ways.
+ Because of that, we define them only on architectures we know
+ about. */
+
+#undef NAMESPACE_TWEAKS
+
+#ifdef solaris
+# define NAMESPACE_TWEAKS
+#endif
+
+#ifdef __linux__
+# define NAMESPACE_TWEAKS
+#endif
+
+#ifdef NAMESPACE_TWEAKS
+
+/* Request the "Unix 98 compilation environment". */
+#define _XOPEN_SOURCE 500
+
+/* For Solaris: request everything else that is available and doesn't
+ conflict with the above. */
+#define __EXTENSIONS__
+
+/* For Linux: request features of 4.3BSD and SVID (System V Interface
+ Definition). */
+#define _SVID_SOURCE
+#define _BSD_SOURCE
+
+#endif /* NAMESPACE_TWEAKS */
+