RIOT/examples/lua_basic/Makefile

APPLICATION = lua_basic

# If no BOARD is found in the environment, use this default:
BOARD ?= native

# This has to be the absolute path to the RIOT base directory:
RIOTBASE ?= $(CURDIR)/../..

# Comment this out to disable code in RIOT that does safety checking
# which is not needed in a production environment but helps in the
# development process:
DEVELHELP ?= 1

# Change this to 0 show compiler invocation lines by default:
QUIET ?= 1

ifneq ($(BOARD),native)
  # This stack size is large enough to run Lua print() functions of
  # various lengths. Other functions untested.
  CFLAGS += -DTHREAD_STACKSIZE_MAIN='(THREAD_STACKSIZE_DEFAULT+2048)'
endif

USEPKG += lua

LUA_PATH = $(BINDIR)/lua

# add directory of generated *.lua.h files to include path
CFLAGS += -I$(LUA_PATH)

# generate .lua.h header files of .lua files
LUA = $(wildcard *.lua)

LUA_H = $(LUA:%.lua=$(LUA_PATH)/%.lua.h)

BUILDDEPS += $(LUA_H) $(LUA_PATH)/

include $(RIOTBASE)/Makefile.include

# The code below generates a header file from any .lua scripts in the
# example directory. The header file contains a byte array of the
# ASCII characters in the .lua script.

$(LUA_PATH)/:
	$(Q)mkdir -p $@

# FIXME: This way of embedding lua code is not robust. A proper script will
#        be included later.
$(LUA_H): $(LUA_PATH)/%.lua.h: %.lua | $(LUA_PATH)/
	$(Q)xxd -i $< | sed 's/^unsigned/const unsigned/g' > $@