Can't compile on OpenBSD

[shtirlic]

\_✪_/ make
Compiling md5b.c...
Compiling binkd.c...
Compiling readcfg.c...
Compiling tools.c...
Compiling ftnaddr.c...
Compiling ftnq.c...
Compiling client.c...
Compiling server.c...
Compiling protocol.c...
Compiling bsy.c...
Compiling inbound.c...
Compiling breaksig.c...
Compiling branch.c...
Compiling unix/rename.c...
Compiling unix/getfree.c...
Compiling ftndom.c...
Compiling ftnnode.c...
Compiling srif.c...
Compiling pmatch.c...
Compiling readflo.c...
Compiling prothlp.c...
Compiling iptools.c...
Compiling rfc2553.c...
Compiling run.c...
Compiling binlog.c...
Compiling exitproc.c...
Compiling getw.c...
Compiling xalloc.c...
Compiling crypt.c...
Compiling unix/setpttl.c...
Compiling unix/daemonize.c...
Compiling unix/ns_parse.c...
unix/ns_parse.c:35: error: expected ')' before '*' token
unix/ns_parse.c:46:6: warning: #warning "ns_msg._msg_ptr element not defined"
unix/ns_parse.c:76: error: expected declaration specifiers or '...' before 'ns_sect'
unix/ns_parse.c: In function 'ns_skiprr':
unix/ns_parse.c:85: error: 'NS_INT16SZ' undeclared (first use in this function)
unix/ns_parse.c:85: error: (Each undeclared identifier is reported only once
unix/ns_parse.c:85: error: for each function it appears in.)
unix/ns_parse.c:86: error: 'section' undeclared (first use in this function)
unix/ns_parse.c:86: error: 'ns_s_qd' undeclared (first use in this function)
unix/ns_parse.c:87: error: 'NS_INT32SZ' undeclared (first use in this function)
unix/ns_parse.c:90: warning: implicit declaration of function 'NS_GET16'
unix/ns_parse.c: At top level:
unix/ns_parse.c:100: error: expected declaration specifiers or '...' before 'ns_msg'
unix/ns_parse.c: In function 'ns_initparse':
unix/ns_parse.c:104: error: 'handle' undeclared (first use in this function)
unix/ns_parse.c:107: error: 'NS_INT16SZ' undeclared (first use in this function)
unix/ns_parse.c:113: error: 'ns_s_max' undeclared (first use in this function)
unix/ns_parse.c:122: error: 'ns_sect' undeclared (first use in this function)
unix/ns_parse.c:122: error: expected ')' before 'i'
unix/ns_parse.c:132: warning: implicit declaration of function 'setsection'
unix/ns_parse.c: At top level:
unix/ns_parse.c:137: error: expected ')' before '*' token
unix/ns_parse.c:197: error: expected ')' before '*' token
*** Error 1 in /home/shtirlic/projects/binkd (Makefile:78 'unix/ns_parse.o': @gcc -c -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VE...)

[pgul]

Please show output of ./configure script, a few lines started from checking for ns_initparse.
And full version of OS you're using (uname -a).
Thanks.

[shtirlic]

...
checking for ns_initparse... no
checking for ns_msg._msg_ptr... no
checking for ns_msg._ptr... no
checking size of short... 2
checking size of int... 4
checking size of long... 8
checking for socklen_t... yes
checking for intmax_t... yes
checking for reliable signals... yes
checking for facilitynames... yes
checking for TIOCNOTTY... yes
checking for MSG_NOSIGNAL... yes
checking for libz... yes: /usr
checking for libbz2... yes: /usr/local
configure: creating ./config.status
config.status: creating Makefile

OpenBSD open-galaxy.local 6.8 GENERIC.MP#4 amd64