+
+/* Linux */
+#undef HAVE_LINUX
+
+/* FreeBSD */
+#undef HAVE_FREEBSD
+
+/* OpenBSD */
+#undef HAVE_OPENBSD
+
+/* Solaris */
+#undef HAVE_SOLARIS
+
+/* Define to the location of the kernel sources */
+#undef CONFIG_TINC_KERNELDIR
+
+/* Define to 1 if tun/tap support is enabled and found */
+#undef HAVE_TUNTAP
+
+/* Define to the location of if_tun.h */
+#undef LINUX_IF_TUN_H
+
+/* Define to 1 if checkpoint tracing is enabled */
+#undef ENABLE_TRACING