--- Makefile.orig	2014-02-18 09:29:28.000000000 -0500
+++ Makefile	2014-02-18 09:41:48.000000000 -0500
@@ -23,6 +23,11 @@
 USES=		perl5
 USE_PERL5=	build
 
+HAS_CONFIGURE=	yes
+OPTIONS_DEFINE= LOCALTIME
+LOCALTIME_DESC= Use localtime instead of UTC
+
+
 MAN1=	mapsid.1 num2dot.1 rwaddrcount.1 rwappend.1 \
 	rwbag.1 rwbagbuild.1 rwbagcat.1 rwbagtool.1 \
 	rwcat.1 rwcount.1 rwcut.1 rwdedupe.1 rwfglob.1 \
@@ -51,6 +56,13 @@
 		rwsender.8
 
 NO_STAGE=	yes
+
+.include <bsd.port.options.mk>
+
+.if ${PORT_OPTIONS:MLOCALTIME}
+CONFIGURE_ARGS+=--enable-localtime
+.endif
+
 post-patch:
 	@${REINPLACE_CMD} -e 's|echo aout|echo elf|' ${WRKSRC}/configure