# ---- Push on stack ----
SP 			   := $(SP).x
DIRSTACK_$(SP) := $(d)
d 			   := $(DIR)

# Iterate through subdirectory tree

DIR := $(d)/libc
include $(DIR)/rules.mk

DIR := $(d)/libn
include $(DIR)/rules.mk

DIR := $(d)/libbio
include $(DIR)/rules.mk

# ---- Pop off stack ----
d  := $(DIRSTACK_$(SP))
SP := $(basename $(SP))