Index: Makefile
===================================================================
--- Makefile
+++ Makefile
@@ -373,19 +373,19 @@
 # existing system is.
 #
 .if make(universe) || make(universe_kernels) || make(tinderbox) || make(targets)
-TARGETS?=amd64 arm i386 mips pc98 powerpc sparc64
 # XXX Add arm64 to universe only if we have an external binutils installed.
 # It does not build with the in-tree linker.
 .if exists(/usr/local/aarch64-freebsd/bin/ld)
-TARGETS+=arm64
-TARGET_ARCHES_arm64?=	aarch64
-.else
+UNIVERSE_arm64=arm64
+.elif empty(${TARGETS})
 universe: universe_arm64_skip
 universe_epilogue: universe_arm64_skip
 universe_arm64_skip: universe_prologue
 	@echo ">> arm64 skipped - install aarch64-binutils port or package to build"
 .endif
+TARGETS?=amd64 arm ${UNIVERSE_arm64} i386 mips pc98 powerpc sparc64
 TARGET_ARCHES_arm?=	arm armeb armv6 armv6hf
+TARGET_ARCHES_arm64?=	aarch64
 TARGET_ARCHES_mips?=	mipsel mips mips64el mips64 mipsn32
 TARGET_ARCHES_powerpc?=	powerpc powerpc64
 TARGET_ARCHES_pc98?=	i386