Index: head/audio/liquidsfz/Makefile
===================================================================
--- head/audio/liquidsfz/Makefile	(revision 536526)
+++ head/audio/liquidsfz/Makefile	(revision 536527)
@@ -1,35 +1,39 @@
 # $FreeBSD$
 
 PORTNAME=	liquidsfz
 DISTVERSION=	0.2.0
 CATEGORIES=	audio
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Sampler that can load and play .sfz files, includes the LV2 pugin
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	lv2>0:audio/lv2
 LIB_DEPENDS=	libjack.so:audio/jack \
 		libsndfile.so:audio/libsndfile
 
 USES=		autoreconf compiler:c++17-lang gmake libtool pkgconfig
 GNU_CONFIGURE=	yes
 USE_GITHUB=	yes
 GH_ACCOUNT=	swesterfeld
 
-CXXFLAGS+=	-Duint=unsigned -Dregister=registerx
-
 PLIST_FILES=	bin/liquidsfz \
 		include/liquidsfz.hh \
 		lib/libliquidsfz.a \
 		lib/lv2/liquidsfz.lv2/liquidsfz.ttl \
 		lib/lv2/liquidsfz.lv2/liquidsfz_lv2.so \
 		lib/lv2/liquidsfz.lv2/manifest.ttl \
 		libdata/pkgconfig/liquidsfz.pc
 
+.include <bsd.port.pre.mk>
+
+.if ${CHOSEN_COMPILER_TYPE} == clang
+CXXFLAGS+=	-Duint=unsigned -Dregister=registerx
+.endif
+
 post-install:
 	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/lv2/liquidsfz.lv2/liquidsfz_lv2.so
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>