- Utilize Makefile.modules.3rd

IMHO, it's one of the best example to see how Makefile.modules.3rd
  can be useful.

www/mod_rpaf/Makefile

@@ -13,23 +13,12 @@ MASTER_SITES=	http://stderr.net/apache/rpaf/download/
 MAINTAINER=	clement@FreeBSD.org
 COMMENT=	Make proxied requests appear with client IP
 
-USE_APACHE=	yes
+AP_FAST_BUILD=	YES
+AP_FAST_BUILD=	YES
+AP_GENPLIST=	YES
+AP2_SRC_FILE=	mod_rpaf-2.0.c
+AP2_PKGNAMESUFFIX=	-ap2
 
-.if defined(WITH_APACHE2)
-PLIST_SUB+=	APACHE=apache2
-AP_EXT=		la
-SRC_FILE=	mod_rpaf-2.0.c
-PKGNAMESUFFIX=	-ap2
-.else
-PLIST_SUB+=	APACHE=apache
-AP_EXT=		so
-SRC_FILE=	mod_rpaf.c
-.endif
-
-do-build:
-	@cd ${WRKSRC} && ${APXS} -c -o ${PORTNAME}.${AP_EXT} ${SRC_FILE}
-
-do-install:
-	${APXS} -i -a -n ${PORTNAME:S/mod_//} ${WRKSRC}/${PORTNAME}.${AP_EXT}
-
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+.include "${PORTSDIR}/www/apache2/Makefile.modules.3rd"
+.include <bsd.port.post.mk>

www/mod_rpaf/pkg-plist

@@ -1,3 +0,0 @@
-libexec/%%APACHE%%/mod_rpaf.so
-@exec %D/sbin/apxs -e -a -n rpaf %D/%F
-@unexec %D/sbin/apxs -e -A -n rpaf %D/%F

www/mod_rpaf2/Makefile

@@ -5,7 +5,7 @@
 # $FreeBSD$
 #
 
-WITH_APACHE2=	yes
+WANT_APACHE=	2
 LATEST_LINK=	mod_rpaf2
 MASTERDIR=	${.CURDIR}/../mod_rpaf