New port attempt assistance: sngrep

[jungle Boogie]

Hello All,

Another application which I've worked with the developer to make it
better on FreeBSD is sngrep:
https://github.com/irontec/sngrep

Still being new to porting applications, my attempt isn't working well.

Here's the Makefile attempt:
PORTNAME=       sngrep
PORTVERSION=    1.2.0
DISTVERSIONPREFIX=      v
CATAGORIES=     net
MASTER_SITES=   GH:irontec

MAINTAINER=     jungleboogie0+sngrep at gmail.com
COMMENT=        SIP Messages flow viewer

LICENSE=        GNU 3

BUILD_DEPENDS=  autoconf:${PORTSDIR}/devel/autoconf
automake:${PORTSDIR}/devel/automake \
                pcre:${PORTSDIR}/devel/pcre     libpcap:${PORTSDIR}/net/libpcap
RUN_DEPENDS=    libpcap:${PORTSDIR}/net/libpcap
USE_GITHUB=     yes
GH_ACCOUNT=     irontec
USES=   autoconf automake
CFLAGS+=        -I/usr/local/include
LDFLAGS+=       -L/usr/local/lib

OPTIONS_DEFINE= \
PCRE    \
OPENSSL \
EEP     \
IPV6    \

OPTIONS_DEFAULT=        pcre openssl eep

.include <bsd.port.mk>

failure:
# make makesum
make: "/usr/ports/Mk/bsd.port.mk" line 1502: Cannot open
/usr/ports/Mk/Uses/autoconf.mk
make: "/usr/ports/Mk/bsd.port.mk" line 1502: Cannot open
/usr/ports/Mk/Uses/automake.mk
make: Fatal errors encountered -- cannot continue
make: stopped in /usr/ports/distfiles


Note that this can't be committed to FreeBSD yet as the existing
release (1.2.0) doesn't support the options above. The developer
corrected it in master this week, but not yet made in a release.

What can I do to overcome the issues with autoconf.mk?


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