dir_mm1 := $(patsubst %/,%,$(dir $(abspath $(lastword $(MAKEFILE_LIST)))))

c_files += $(dir_mm1)/pmm.c \
           $(dir_mm1)/bba.c \
           $(dir_mm1)/liballoc.c

o_files += $(dir_mm1)/pmm.o \
           $(dir_mm1)/bba.o \
           $(dir_mm1)/liballoc.o