Install courier-authlib on OpenBSD 3.7

Hello,
I'm trying to install courier-authlib on OpenBSD 3.7
but when I do the "make install" I see this messages:

*** Warning: linker path does not have real file for library -lvpopmail.
*** I have the capability to make that library automatically link in when
*** you link to this library. But I can only do this if you have a
*** shared version of the library, which you do not appear to have
*** because I did check the linker path looking for a file starting
*** with libvpopmail and none of the candidates passed a file format test
*** using a file magic. Last file checked: /home/vpopmail/lib/libvpopmail.a

*** Warning: libtool could not satisfy all declared inter-library
*** dependencies of module libauthvchkpw. Therefore, libtool will create
*** a static module, that should work as long as the dlopening
*** application is linked with the -dlopen flag.


The problem is that when I start courier-authlib it does not
work because it complaine that he can't find libauthvchkpw.so.00 and this is the true, I don't have
libauthvchkpw.so.00 in /usr/local/lib/courier-authlib only
libauthvchkpw.a and libauthvchkpw.la.
I'm sorry, but I can't understand the error message above.

I need for courier-authlib to work with authvchkpw, that's all.
I didn't have this problem on freebsd.

Thanks for the reply.
I allready try this port before I post my Thread, but
it start to download and install mysql and I don't want that and
it didn't compile authvchkpw.
I try to change the Makefile but it didn't affect.
I'm starting to go creazy because I have a working qmail with courier-imap all with
daemontools and I only need courier-authlib.

More info from my "make" :

Compiling authvchkpw.c
authvchkpw.c: In function `auth_vchkpw_changepass':
authvchkpw.c:142: warning: passing arg 1 of `parse_email' discards qualifiers from pointer target type
Compiling authvchkpwlib.c
Compiling preauthvchkpw.c
preauthvchkpw.c: In function `auth_vchkpw_pre':
preauthvchkpw.c:67: warning: passing arg 1 of `parse_email' discards qualifiers from pointer target type
preauthvchkpw.c:141: warning: passing arg 3 of `vset_lastauth' discards qualifiers from pointer target type
Linking libauthvchkpw.la

*** Warning: linker path does not have real file for library -lvpopmail.
*** I have the capability to make that library automatically link in when
*** you link to this library. But I can only do this if you have a
*** shared version of the library, which you do not appear to have
*** because I did check the linker path looking for a file starting
*** with libvpopmail and none of the candidates passed a file format test
*** using a file magic. Last file checked: /home/vpopmail/lib/libvpopmail.a

*** Warning: libtool could not satisfy all declared inter-library
*** dependencies of module libauthvchkpw. Therefore, libtool will create
*** a static module, that should work as long as the dlopening
*** application is linked with the -dlopen flag.

Some one can help me please?