Abandon hope, it will not :-)
As to the patch, you might have noticed that in the ifmail source,
I am trying to avoid using `builtin' defines.
> diff -ur ifmail-2.12.old/ifcico/respfreq.c ifmail-2.12/ifcico/respfreq.c
> --- ifmail-2.12.old/ifcico/respfreq.c Tue Dec 2 20:12:16 1997
> +++ ifmail-2.12/ifcico/respfreq.c Tue Dec 2 20:28:14 1997
> @@ -27,6 +27,9 @@
> #ifdef __FreeBSD__
^^^^^^^^^^^^^^^^^^
Eugene