Add d.package target for unfetching, update cookbook

cookbook @ ddab2cd9

-Subproject commit 1cc47128b2bf21fdf6fff4348c05fbce6348338f
+Subproject commit ddab2cd9e8caf4097e6e489138536bd7e5f2e817

mk/repo.mk

@@ -33,6 +33,16 @@ else
 	./clean.sh $*
 endif
 
+# Invoke unfetch.sh for a single target
+d.%: $(FSTOOLS_TAG) FORCE
+ifeq ($(PODMAN_BUILD),1)
+	$(PODMAN_RUN) $(MAKE) $@
+else
+	export PATH="$(PREFIX_PATH):$$PATH" && \
+	cd cookbook && \
+	./unfetch.sh $*
+endif
+
 # Invoke fetch.sh for a single target
 f.%: $(FSTOOLS_TAG) FORCE
 ifeq ($(PODMAN_BUILD),1)