#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------

ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM)
endif

include $(DEVKITARM)/ds_rules

#---------------------------------------------------------------------------------
# TARGET is the name of the output
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# DATA is a list of directories containing data files
# INCLUDES is a list of directories containing header files
# SPECS is the directory containing the important build and link files
#---------------------------------------------------------------------------------
export TARGET		:=	$(shell basename $(CURDIR))
BUILD		:=	build
SOURCES		:=	source


#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH	:=	-mthumb-interwork

CFLAGS	:=	-g -Wall -O2\
			-mcpu=arm7tdmi -mtune=arm7tdmi -fomit-frame-pointer\
			-ffast-math \
			$(ARCH)

CFLAGS	+=	$(INCLUDE) -DARM9 -fPIC

CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions

ASFLAGS	:=	-g $(ARCH)

  
#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------
 
export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir))

export DEPSDIR	:=	$(CURDIR)/$(BUILD)

SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))

export DLMIFILES	:=	$(SFILES:.s=.dlmi)
export OFILES	:=	$(SFILES:.s=.o)

#---------------------------------------------------------------------------------

.PHONY: $(BUILD) clean all
 
#---------------------------------------------------------------------------------
all: $(BUILD)

$(BUILD):
	@[ -d $@ ] || mkdir -p $@
	@make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
 
#---------------------------------------------------------------------------------
clean:
	@echo clean ...
	@rm -fr $(BUILD) *.elf *.dlmi
 
 
#---------------------------------------------------------------------------------
else
 
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
all: $(OFILES) $(DLMIFILES)

#---------------------------------------------------------------------------------
%.dlmi: %.o
	@$(OBJCOPY) -O binary $< $@
	@cp -f $(notdir $@) ..
	@echo built ... $(notdir $@)
 
#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------