+/* Defined for Solaris 2.x, Irix, OSF/1, HP-UX, AIX, SCO5 */
+#undef SYS5
+
+/* Defined for Solaris 2.x, Irix, OSF/1, HP-UX, AIX */
+#undef SVR4
+
+/* Defined for SunOS 4, FreeBSD, NetBSD, OpenBSD, BSD/OS -- does
+ * PicoBSD have uname? :) */
+#undef BIND
+#undef BSD42
+
+/* Defined for SunOS 4, FreeBSD, NetBSD, OpenBSD, BSD/OS */
+#undef BSD44
+
+/* Defined for SCO5 */
+#undef SCO_5_STDIO
+
+/* Defined for Linux */
+#undef LINUX_STDIO
+
+