+/* The following are autoconfigured, but you may wish to override the
+ * decisions of autoconf (and AC_CANONICAL_SYSTEM) and do your own
+ * thing. If so, you can modify the definitions. The Comments are as
+ * useful as ever. */
+
+/* these three are only used in vmh.c, which currently is not being
+ * built anyway. -Doug */
+/* 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, Mac OS X/Rhapsody */
+#undef BSD44
+
+/* Defined for SunOS 4, FreeBSD, NetBSD, OpenBSD, BSD/OS, Mac OS X/Rhapsody
+ * -- does PicoBSD have uname? :) */
+#undef BSD42
+
+/* Defined for SCO5 */
+#undef SCO_5_STDIO
+
+/* This tells nmh to use the Linux _IO_*_ptr defines from libio.h */
+#undef LINUX_STDIO
+
+