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

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

include $(DEVKITARM)/ds_rules

EMU_BUILD=0

#---------------------------------------------------------------------------------
# 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
# INCLUDES is a list of directories containing extra header files
# MAXMOD_SOUNDBANK contains a directory of music and sound effect files
#---------------------------------------------------------------------------------
TARGET		:=	$(shell basename $(CURDIR))
BUILD		:=	build
SOURCES		:=	source 
DATA		:=
INCLUDES	:=	include

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH	:= -marm -mno-thumb-interwork -march=armv5te -mtune=arm946e-s

CFLAGS	:= -save-temps \
		-Wall -Ofast\
 		-fomit-frame-pointer\
		-ffast-math \
		$(ARCH)
		#-finstrument-functions -mpoke-function-name \

CFLAGS	+=	$(INCLUDE) -DARM9
CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions

ASFLAGS	:=	$(ARCH)
LDFLAGS	=	-specs=ds_arm9.specs $(ARCH) -Wl,-Map,$(notdir $*.map)

#---------------------------------------------------------------------------------
# any extra libraries we wish to link with the project (order is important)
#---------------------------------------------------------------------------------
LIBS	:= 	-lfat -lnds9
 
#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS	:=	$(LIBNDS)

ifeq ($(strip $(EMU_BUILD)),1)
	NITRODATA := fs
	CFLAGS += -DEMU_BUILD
	LIBS := -lfilesystem $(LIBS)
else
	CFLAGS += -DHW_BUILD
endif
 
#---------------------------------------------------------------------------------
# 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 OUTPUT	:=	$(CURDIR)/$(TARGET)

export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
					$(foreach dir,$(DATA),$(CURDIR)/$(dir))

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

ifneq ($(strip $(NITRODATA)),)
	export NITRO_FILES	:=	$(CURDIR)/$(NITRODATA)
endif

CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
 
#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
	export LD	:=	$(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
	export LD	:=	$(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------

export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
			$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
 
export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
			$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
			$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
			-I$(CURDIR)/$(BUILD)
 
export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)
 
.PHONY: $(BUILD) clean
 
#---------------------------------------------------------------------------------
$(BUILD):
	@[ -d $@ ] || mkdir -p $@
	@make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
 
#---------------------------------------------------------------------------------
clean:
	@echo clean ...
	@rm -fr $(BUILD) $(TARGET).elf $(TARGET).nds

#---------------------------------------------------------------------------------
else
 
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(OUTPUT).nds	: 	$(OUTPUT).elf
$(OUTPUT).elf	:	$(OFILES)
 
#---------------------------------------------------------------------------------
%.bin.o	:	%.bin
#---------------------------------------------------------------------------------
	@echo $(notdir $<)
	$(bin2o)
 
-include $(DEPSDIR)/*.d
 
#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------