diff --git a/audio/dssi/Makefile b/audio/dssi/Makefile
index 1c1a34b88777..26e151718288 100644
--- a/audio/dssi/Makefile
+++ b/audio/dssi/Makefile
@@ -1,61 +1,72 @@
 PORTNAME=	dssi
 PORTVERSION=	1.1.1
 PORTREVISION=	13
 CATEGORIES=	audio
 MASTER_SITES=	SF
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	API for audio processing plugins
 WWW=		https://dssi.sourceforge.net/
 
 LICENSE=	LGPL21
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	${LOCALBASE}/include/ladspa.h:audio/ladspa
 LIB_DEPENDS=	libdssialsacompat.so:audio/libdssialsacompat \
 		liblo.so:audio/liblo \
 		libsamplerate.so:audio/libsamplerate \
 		libsndfile.so:audio/libsndfile \
 		libjack.so:audio/jack
 RUN_DEPENDS=	${LOCALBASE}/include/ladspa.h:audio/ladspa \
 		${LOCALBASE}/include/alsa/seq_event.h:audio/alsa-lib
 
 USES=		gmake pathfix pkgconfig localbase libtool xorg
+USE_XORG=	x11
+
 GNU_CONFIGURE=	yes
 GNU_CONFIGURE_MANPREFIX=${PREFIX}/share
-USE_XORG=	x11
 
 PORTDOCS=	ChangeLog README
 
 PORTEXAMPLES=	*
 EXAMPLESSRCDIR=	${WRKSRC}/examples
 EXAMPLES_FILES1=dssi_analyse_plugin dssi_list_plugins \
 		dssi_osc_send dssi_osc_update
 EXAMPLES_FILES2=LTS_qt trivial_sampler_qt
 
 OPTIONS_DEFINE=	DOCS EXAMPLES
 OPTIONS_SUB=	yes
 
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ( ${OSVERSION} >= 1400091 || ( ${OSVERSION} >= 1302507 && ${OSVERSION} < 1400000 ))
+CFLAGS+=	-Wno-error=incompatible-function-pointer-types
+.endif
+
 post-patch:
 	@${REINPLACE_CMD} -e \
 		'/^lts_uidir/s|^|@HAVE_QT_TRUE@|; \
 		/^trivial_sampler_uidir/s|^|@HAVE_QT_TRUE@|; \
 		s|-ldl$$||' ${WRKSRC}/examples/Makefile.in
 	@${REINPLACE_CMD} -e \
 		's|-ldl$$||' ${WRKSRC}/jack-dssi-host/Makefile.in
 	@${REINPLACE_CMD} -e \
 		'/alsa >=/s|$$PKG_CONFIG|${FALSE}|' ${WRKSRC}/configure
 	@${REINPLACE_CMD} -e \
 		'/QtCore >=/s|$$PKG_CONFIG|${FALSE}|' ${WRKSRC}/configure
 
 post-install:
 .for l in trivial_synth less_trivial_synth trivial_sampler karplong
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/dssi/${l}.so
 .endfor
+
+post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${PORTDOCS:S|^|${WRKSRC}/|} ${STAGEDIR}${DOCSDIR}
+
+post-install-EXAMPLES-on:
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	${INSTALL_PROGRAM} ${EXAMPLES_FILES1:S|^|${EXAMPLESSRCDIR}/|} \
 		${STAGEDIR}${EXAMPLESDIR}
 
 .include <bsd.port.mk>