diff --git a/databases/mdbtools/Makefile b/databases/mdbtools/Makefile
index fd144aefbed7..3da1f8d445f1 100644
--- a/databases/mdbtools/Makefile
+++ b/databases/mdbtools/Makefile
@@ -1,48 +1,60 @@
 PORTNAME=	mdbtools
 DISTVERSION=	1.0.0
 PORTREVISION=	1
 CATEGORIES=	databases
 MASTER_SITES=	https://github.com/${PORTNAME}/${PORTNAME}/releases/download/v${DISTVERSION}/
 
 MAINTAINER=	rhurlin@FreeBSD.org
 COMMENT=	Utilities and libraries to export data from MS Access databases (.mdb)
 WWW=		https://github.com/mdbtools/mdbtools/
 
 LICENSE=	GPLv2
 
 BUILD_DEPENDS=	bash-completion>=0:shells/bash-completion \
 		flex:textproc/flex \
 		gawk:lang/gawk
 LIB_DEPENDS=	libodbcinst.so:databases/unixODBC
 RUN_DEPENDS=	bash-completion>=0:shells/bash-completion
 
 USES=		bison cpe gnome iconv:wchar_t libtool pathfix \
 		pkgconfig readline
+CPE_VENDOR=	mdbtools_project
 USE_GNOME=	glib20
 USE_LDCONFIG=	yes
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	${ICONV_CONFIGURE_ARG} \
 		--with-unixodbc=${LOCALBASE}
 
-CPE_VENDOR=	mdbtools_project
-
 INSTALL_TARGET=	install-strip
 
 OPTIONS_DEFINE=		DOCS MANPAGES LIBMSWSTR NLS
 OPTIONS_DEFAULT=	MANPAGES
 OPTIONS_SUB=		yes
 
 LIBMSWSTR_DESC=	Read and parse JET 4 mdb file indices
 
 LIBMSWSTR_LIB_DEPENDS=		libmswstr.so:databases/libmswstr
 LIBMSWSTR_CONFIGURE_ENV_OFF=	ac_cv_lib_mswstr_DBLCMapStringW=no
 MANPAGES_CONFIGURE_OFF=		--disable-man
 NLS_USES=			gettext
 
 DOCS=		AUTHORS HACKING.md NEWS README.md
 
+.include <bsd.port.pre.mk>
+
+.if ${LLVM_DEFAULT} >= 15
+# With LLVM15:  parser.c:1053:9: error:
+# variable 'yynerrs' set but not used [-Werror,-Wunused-but-set-variable]
+BUILD_DEPENDS+=	llvm-config${LLVM_VER}:devel/llvm${LLVM_VER}
+LLVM_VER=	14
+#CMAKE_ARGS+=	-DLLVM_DIR=${LOCALBASE}/llvm${LLVM_VER}/lib/cmake/llvm
+CC=		clang${LLVM_VER}
+CPP=		clang-cpp${LLVM_VER}
+CXX=		clang++${LLVM_VER}
+.endif
+
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${DOCS:S,^,${WRKSRC}/,}  ${STAGEDIR}${DOCSDIR}
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>