Index: head/graphics/art/Makefile
===================================================================
--- head/graphics/art/Makefile	(revision 556030)
+++ head/graphics/art/Makefile	(revision 556031)
@@ -1,41 +1,52 @@
 # $FreeBSD$
 
 PORTNAME=	art
 PORTVERSION=	1.5.4.20201118
 CATEGORIES=	graphics
 MASTER_SITES=	https://bitbucket.org/${BB_ACCOUNT}/${BB_PROJECT}/get/${BB_COMMIT}.tar.gz?dummy=/
 PKGNAMESUFFIX=	-raw-image-editor
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Raw image processing program
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 BUILD_DEPENDS=	${LOCALBASE}/include/fftw3.h:math/fftw3
 LIB_DEPENDS=	libcanberra.so:audio/libcanberra \
 		libcanberra-gtk3.so:audio/libcanberra-gtk3 \
 		libexiv2.so:graphics/exiv2 \
 		libexpat.so:textproc/expat2 \
 		libfftw3f.so:math/fftw3-float \
 		liblensfun.so:graphics/lensfun \
 		liblcms2.so:graphics/lcms2 \
 		libpng16.so:graphics/png \
 		libtiff.so:graphics/tiff
 
 USES=		cmake compiler:c++11-lang desktop-file-utils gnome jpeg pkgconfig xorg
 USE_GNOME=	atk atkmm cairo cairomm glibmm gtkmm30 librsvg2
 USE_XORG=	x11
 
+WRKSRC=		${WRKDIR}/${BB_ACCOUNT}-${BB_PROJECT}-${BB_COMMIT}
+
 INSTALLS_ICONS=	yes
 
 BB_ACCOUNT=	agriggio
 BB_PROJECT=	art
 BB_COMMIT=	b2d77c8f0080
 
-WRKSRC=		${WRKDIR}/${BB_ACCOUNT}-${BB_PROJECT}-${BB_COMMIT}
+.include <bsd.port.pre.mk>
 
+# breaks with llvm-8
+.if ${CHOSEN_COMPILER_TYPE} == clang
+LLVM_VERSION=   10
+BUILD_DEPENDS+=	clang${LLVM_VERSION}:devel/llvm${LLVM_VERSION}
+CC=		clang${LLVM_VERSION}
+CXX=		clang++${LLVM_VERSION}
+CPP=		clang-cpp${LLVM_VERSION}
+.endif
+
 post-install:
 	${RM} -r ${STAGEDIR}${PREFIX}/share/doc/ART
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>