+AC_ARG_ENABLE(tunemu,
+ AS_HELP_STRING([--enable-tunemu], [enable support for the tunemu driver]),
+ [ AC_DEFINE(ENABLE_TUNEMU, 1, [Support for tunemu])
+ tunemu=true
+ ]
+)
+
+AC_ARG_WITH(windows2000,
+ AS_HELP_STRING([--with-windows2000], [compile with support for Windows 2000. This disables support for tunneling over existing IPv6 networks.]),
+ [AC_DEFINE(WITH_WINDOWS2000, 1, [Compile with support for Windows 2000])]
+)
+
+AM_CONDITIONAL(TUNEMU, test "$tunemu" = true)
+