OT: qmail-autoresponder won't compile on OpenBSD 3.1

[Lou Hevly <soc_(_at_)_visca_(_dot_)_com>]

Greetings:

Has anyone gotten qmail-autoresponder-0.96 to compile on OpenBSD 3.1?

Using OpenBSD 3.1 GENERIC#59 i386

$ cd /usr/local/src/qmail-autoresponder-0.96/
$ make
...
./load qmail-autoresponder main.o -liobuf/iobuf -lstr/str -lsysdeps
ld: -liobuf/iobuf: no match
collect2: ld returned 1 exit status
*** Error code 1

I believe I've got the bglibs installed correctly:
$ locate iobuf | grep -v src
/usr/local/bglibs/include/iobuf
/usr/local/bglibs/include/iobuf/iobuf.h
/usr/local/bglibs/lib/iobuf
/usr/local/bglibs/lib/libiobuf
/usr/local/bglibs/lib/libiobuf.a
/usr/local/bglibs/lib/libiobuf/iobuf.a
/usr/local/bglibs/lib/libiobuf/str.a

I'd be grateful for any suggestions.