--- tools/Makefile.orig	2022-04-12 12:21:23 UTC
+++ tools/Makefile
@@ -51,6 +51,9 @@ CROSS_SYS_ROOT ?= /usr/$(CROSS_COMPILE:-=)/sys-root
 export CROSS_SYS_ROOT # exported for check/funcs.sh
 export CROSS_BIN_PATH # exported for cross-install.sh
 endif
+ifeq ($(FREEBSD_PORT),y)
+SUBDIRS-y := libs xenstore misc
+endif
 
 .PHONY: build all
 build all: subdirs-all