Index: Makefile.inc1
===================================================================
--- Makefile.inc1
+++ Makefile.inc1
@@ -516,7 +516,7 @@
 # cross-tools stage
 XMAKE=		TOOLS_PREFIX=${WORLDTMP} ${BMAKE} \
 		TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH} \
-		MK_GDB=no MK_TESTS=no
+		MK_GDB=no MK_TESTS=no MK_LLD_AS_LD=no
 
 # kernel-tools stage
 KTMAKEENV=	INSTALL="sh ${.CURDIR}/tools/install.sh" \
Index: gnu/usr.bin/binutils/ld/Makefile
===================================================================
--- gnu/usr.bin/binutils/ld/Makefile
+++ gnu/usr.bin/binutils/ld/Makefile
@@ -49,7 +49,9 @@
 
 FILES=		${LDSCRIPTS:S|^|ldscripts/|}
 FILESDIR=	${SCRIPTDIR}
+.if ${MK_LLD_AS_LD} == "no"
 LINKS=		${BINDIR}/ld.bfd ${BINDIR}/ld
+.endif
 
 HOST=		${TARGET_TUPLE}
 LIBSEARCHPATH=	\"=/lib\":\"=/usr/lib\"
Index: share/mk/src.opts.mk
===================================================================
--- share/mk/src.opts.mk
+++ share/mk/src.opts.mk
@@ -250,6 +250,11 @@
 .else
 __DEFAULT_NO_OPTIONS+=LLVM_LIBUNWIND
 .endif
+.if ${__T} == "aarch64"
+__DEFAULT_YES_OPTIONS+=LLD_AS_LD
+.else
+__DEFAULT_NO_OPTIONS+=LLD_AS_LD
+.endif
 .if ${__T} == "aarch64" || ${__T} == "amd64"
 __DEFAULT_YES_OPTIONS+=LLD LLDB
 .else
Index: tools/build/options/WITHOUT_LLD_AS_LD
===================================================================
--- /dev/null
+++ tools/build/options/WITHOUT_LLD_AS_LD
@@ -0,0 +1,2 @@
+.\" $FreeBSD$
+Set to use GNU binutils ld as the system linker, instead of LLVM's LLD.
Index: tools/build/options/WITH_LLD_AS_LD
===================================================================
--- /dev/null
+++ tools/build/options/WITH_LLD_AS_LD
@@ -0,0 +1,2 @@
+.\" $FreeBSD$
+Set to use LLVM's LLD as the system linker, instead of GNU binutils ld.
Index: usr.bin/clang/lld/Makefile
===================================================================
--- usr.bin/clang/lld/Makefile
+++ usr.bin/clang/lld/Makefile
@@ -1,10 +1,15 @@
 # $FreeBSD$
 
+.include <src.opts.mk>
+
 LLVM_SRCS=	${SRCTOP}/contrib/llvm
 LLD_SRCS=	${LLVM_SRCS}/tools/lld
 
 PROG_CXX=	ld.lld
 MAN=
+.if ${MK_LLD_AS_LD} != "no"
+SYMLINKS=	${PROG_CXX} ${BINDIR}/ld
+.endif
 
 CFLAGS+=	-I${LLD_SRCS}/include
 CFLAGS+=	-I${.OBJDIR}