mail/milter-manager: Fix build with llvm16

- Utilize USES=localbase

Approved by:	portmgr (blanket)
Sponsored by:	The FreeBSD Foundation

mail/milter-manager/Makefile

@@ -16,8 +16,8 @@ LIB_DEPENDS=	libev.so:devel/libev
 RUN_DEPENDS=	rubygem-gio2>0:devel/rubygem-gio2 \
 		rubygem-rexml>0:textproc/rubygem-rexml
 
-USES=		compiler:c++11-lang gettext gmake gnome libtool pathfix \
-		pkgconfig ruby
+USES=		compiler:c++11-lang gettext gmake gnome libtool localbase \
+		pathfix pkgconfig ruby
 USE_GNOME=	glib20 intltool
 USE_LDCONFIG=	yes
 USE_RC_SUBR=	milter-manager
@@ -30,18 +30,22 @@ CONFIGURE_ARGS=	--with-html-dir=${DOCSDIR} \
 INSTALL_TARGET=	install-strip
 
 CFLAGS+=	-fdeclspec
-CPPFLAGS+=	-I${LOCALBASE}/include
-LIBS+=		-L${LOCALBASE}/lib
 
 PORTDOCS=	*
 PORTEXAMPLES=	*
 
 OPTIONS_DEFINE=	DOCS EXAMPLES
 
+.include <bsd.port.pre.mk>
+
+.if ${COMPILER_TYPE} == clang && ${COMPILER_VERSION} >= 160
+CFLAGS+=	-Wno-error=incompatible-function-pointer-types
+.endif
+
 post-patch:
 	@${FIND} ${WRKSRC} -type f -name Makefile.in -exec \
 	${REINPLACE_CMD} -e "s#\$$(datadir)/@PACKAGE@#${DATADIR}#" \
 			 -e "s#\$$(datarootdir)/\$$(PACKAGE)#${DATADIR}#" {} +
 	@${REINPLACE_CMD} -e "s#\\\\\$$(pkgdatadir)/sample#${EXAMPLESDIR}#" ${WRKSRC}/configure
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>