WARN_FLAGS=-Wall -Wextra -Werror -Wcast-align
-AO_CFLAGS=-I. -I$(TOPDIR)/stmf0 -I$(TOPDIR)/kernel -I$(TOPDIR)/drivers -I$(TOPDIR)/product -I$(TOPDIR) -I$(TOPDIR)/math $(PDCLIB_INCLUDES)
+AO_CFLAGS=-I. -I$(TOPDIR)/stmf0 -I$(TOPDIR)/kernel -I$(TOPDIR)/drivers \
+ -I$(TOPDIR)/product -I$(TOPDIR) -I$(TOPDIR)/math -I$(TOPDIR)/lisp \
+ $(PDCLIB_INCLUDES)
+
STMF0_CFLAGS=-std=gnu99 -mlittle-endian -mcpu=cortex-m0 -mthumb\
-ffreestanding -nostdlib $(AO_CFLAGS) $(WARN_FLAGS)