--- dns/bind916/Makefile.orig	2022-04-24 03:13:50.777719000 +0700
+++ dns/bind916/Makefile	2022-04-24 03:15:16.936909000 +0700
@@ -18,8 +18,7 @@
 LICENSE=	MPL20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-LIB_DEPENDS=	libuv.so:devel/libuv \
-		libxml2.so:textproc/libxml2
+LIB_DEPENDS=	libuv.so:devel/libuv
 RUN_DEPENDS=	bind-tools>0:dns/bind-tools
 
 USES=		compiler:c11 cpe libedit pkgconfig ssl tar:xz
@@ -52,9 +51,9 @@
 
 MAKE_JOBS_UNSAFE=	yes
 
-OPTIONS_DEFAULT=	DLZ_FILESYSTEM GSSAPI_NONE IDN JSON LMDB \
+OPTIONS_DEFAULT=	DLZ_FILESYSTEM GSSAPI_NONE IDN JSON LIBXML2 LMDB \
 			TCP_FASTOPEN MANPAGES DNSTAP
-OPTIONS_DEFINE=		DNSTAP DOCS FIXED_RRSET GEOIP IDN JSON LARGE_FILE LMDB \
+OPTIONS_DEFINE=		DNSTAP DOCS FIXED_RRSET GEOIP IDN JSON LARGE_FILE LIBXML2 LMDB \
 			OVERRIDECACHE PORTREVISION QUERYTRACE \
 			START_LATE TCP_FASTOPEN MANPAGES
 
@@ -149,6 +148,9 @@
 
 LARGE_FILE_CONFIGURE_ENABLE=	largefile
 
+LIBXML2_CONFIGURE_WITH=	libxml2
+LIBXML2_LIB_DEPENDS=	libxml2.so:textproc/libxml2
+
 LMDB_CONFIGURE_WITH=	lmdb=${LOCALBASE}
 LMDB_LIB_DEPENDS=	liblmdb.so:databases/lmdb