DEBUG = 0
EXTERNAL_ZLIB = 0
WANT_GRIFFIN = 0

ifeq ($(platform),)
platform = unix
ifeq ($(shell uname -a),)
   platform = win
else ifneq ($(findstring MINGW,$(shell uname -a)),)
   platform = win
else ifneq ($(findstring Darwin,$(shell uname -a)),)
   platform = osx
else ifneq ($(findstring win,$(shell uname -a)),)
   platform = win
endif
endif

# system platform
system_platform = unix
ifeq ($(shell uname -a),)
EXE_EXT = .exe
   system_platform = win
else ifneq ($(findstring Darwin,$(shell uname -a)),)
   system_platform = osx
else ifneq ($(findstring MINGW,$(shell uname -a)),)
   system_platform = win
endif

TARGET_NAME := fceumm

ifeq ($(platform), unix)
   TARGET := $(TARGET_NAME)_libretro.so
   fpic := -fPIC
   SHARED := -shared -Wl,--version-script=src/drivers/libretro/link.T -Wl,-no-undefined
   ENDIANNESS_DEFINES = -DLSB_FIRST -DLOCAL_LE=1
   ZLIB_DIR := ./src/zlib
else ifeq ($(platform), osx)
   TARGET := $(TARGET_NAME)_libretro.dylib
   fpic := -fPIC -mmacosx-version-min=10.6
   SHARED := -dynamiclib
   ENDIANNESS_DEFINES = -DLSB_FIRST -DLOCAL_LE=1
   CFLAGS += -DHAVE_ASPRINTF
   ZLIB_DIR := ./src/zlib
else ifeq ($(platform), qnx)
   TARGET := $(TARGET_NAME)_libretro_qnx.so
   fpic := -fPIC
   SHARED := -shared -Wl,--version-script=src/drivers/libretro/link.T -Wl,-no-undefined
   ENDIANNESS_DEFINES = -DLSB_FIRST -DLOCAL_LE=1
   ZLIB_DIR := ./src/zlib

	CC = qcc -Vgcc_ntoarmv7le
	AR = qcc -Vgcc_ntoarmv7le
	PLATFORM_DEFINES := -D__BLACKBERRY_QNX__ -marm -mcpu=cortex-a9 -mfpu=neon -mfloat-abi=softfp
else ifeq ($(platform), ios)
   TARGET := $(TARGET_NAME)_libretro_ios.dylib
   fpic := -fPIC
   SHARED := -dynamiclib
   ENDIANNESS_DEFINES = -DLSB_FIRST -DLOCAL_LE=1
   CFLAGS += -DHAVE_ASPRINTF -DIOS
   ZLIB_DIR := ./src/zlib
   CC = clang -arch armv7 -isysroot $(IOSSDK) -miphoneos-version-min=5.0
   CFLAGS += -DIOS -miphoneos-version-min=5.0
else ifeq ($(platform), ps3)
   TARGET := $(TARGET_NAME)_libretro_ps3.a
   CC = $(CELL_SDK)/host-win32/ppu/bin/ppu-lv2-gcc.exe
   AR = $(CELL_SDK)/host-win32/ppu/bin/ppu-lv2-ar.exe
   PLATFORM_DEFINES := -D__CELLOS_LV2
	STATIC_LINKING = 1
else ifeq ($(platform), sncps3)
   TARGET := $(TARGET_NAME)_libretro_ps3.a
   CC = $(CELL_SDK)/host-win32/sn/bin/ps3ppusnc.exe
   AR = $(CELL_SDK)/host-win32/sn/bin/ps3snarl.exe
   PLATFORM_DEFINES := -D__CELLOS_LV2
	STATIC_LINKING = 1
else ifeq ($(platform), psp1)
   TARGET := $(TARGET_NAME)_libretro_psp1.a
	CC = psp-gcc$(EXE_EXT)
	CXX = psp-g++$(EXE_EXT)
	AR = psp-ar$(EXE_EXT)
   PLATFORM_DEFINES := -DPSP -G0 -DLSB_FIRST -DHAVE_ASPRINTF
	STATIC_LINKING = 1
else ifeq ($(platform), psl1ght)
   TARGET := $(TARGET_NAME)_libretro_psl1ght.a
   CC = $(PS3DEV)/ppu/bin/ppu-gcc$(EXE_EXT)
   AR = $(PS3DEV)/ppu/bin/ppu-ar$(EXE_EXT)
   PLATFORM_DEFINES := -D__CELLOS_LV2 -DHAVE_ASPRINTF
	STATIC_LINKING = 1
else ifeq ($(platform), xenon)
   TARGET := $(TARGET_NAME)_libretro_xenon360.a
   CC = xenon-gcc$(EXE_EXT)
   AR = xenon-ar$(EXE_EXT)
   PLATFORM_DEFINES := -D__LIBXENON__
   CFLAGS += -DHAVE_ASPRINTF
	STATIC_LINKING = 1
else ifeq ($(platform), ngc)
   TARGET := $(TARGET_NAME)_libretro_ngc.a
   CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
   AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
   PLATFORM_DEFINES := -DGEKKO -DHW_DOL -mrvl -mcpu=750 -meabi -mhard-float
   CFLAGS += -DHAVE_ASPRINTF
	STATIC_LINKING = 1
else ifeq ($(platform), wii)
   TARGET := $(TARGET_NAME)_libretro_wii.a
   CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
   AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
   PLATFORM_DEFINES := -DGEKKO -DHW_RVL -mrvl -mcpu=750 -meabi -mhard-float
   CFLAGS += -DHAVE_ASPRINTF
	STATIC_LINKING = 1
else ifneq (,$(findstring armv,$(platform)))
   TARGET := $(TARGET_NAME)_libretro.so
   SHARED := -shared -Wl,--version-script=src/drivers/libretro/link.T -Wl,-no-undefined
   ENDIANNESS_DEFINES = -DLSB_FIRST -DLOCAL_LE=1
   fpic := -fPIC
   CC = gcc
   ZLIB_DIR := ./src/zlib
ifneq (,$(findstring cortexa8,$(platform)))
   PLATFORM_DEFINES += -marm -mcpu=cortex-a8
else ifneq (,$(findstring cortexa9,$(platform)))
   PLATFORM_DEFINES += -marm -mcpu=cortex-a9
endif
   PLATFORM_DEFINES += -marm
ifneq (,$(findstring neon,$(platform)))
   PLATFORM_DEFINES += -mfpu=neon
   HAVE_NEON = 1
endif
ifneq (,$(findstring softfloat,$(platform)))
   PLATFORM_DEFINES += -mfloat-abi=softfp
else ifneq (,$(findstring hardfloat,$(platform)))
   PLATFORM_DEFINES += -mfloat-abi=hard
endif
   PLATFORM_DEFINES += -DARM
else
   TARGET := $(TARGET_NAME)_libretro.dll
   CC = gcc
   SHARED := -shared -static-libgcc -static-libstdc++ -s -Wl,--version-script=src/drivers/libretro/link.T
   ENDIANNESS_DEFINES = -DLSB_FIRST -DLOCAL_LE=1
   ZLIB_DIR := ./src/zlib
endif

ifeq ($(DEBUG), 1)
	CFLAGS += -O0 -g
else
	CFLAGS += -O3 -DNDEBUG
endif

ifeq ($(EXTERNAL_ZLIB), 1)
	ZLIB_DIR := 
	CFLAGS += -DHAVE_EXTERNAL_ZLIB
	LDFLAGS += -lz
endif

LIBRETRO_DIR := ./src/drivers/libretro
FCEU_DIR := ./src

ifeq ($(WANT_GRIFFIN), 1)
	CFLAGS += -DWANT_GRIFFIN
	FCEU_SRC_DIRS := $(FCEU_DIR)/boards $(FCEU_DIR)/input $(FCEU_DIR)/mappers $(ZLIB_DIR)
	FCEU_CSRCS := $(foreach dir,$(FCEU_SRC_DIRS),$(wildcard $(dir)/*.c))
	FCEU_CSRCS += $(LIBRETRO_DIR)/griffin.c $(FCEU_DIR)/ines.c $(FCEU_DIR)/unif.c $(FCEU_DIR)/x6502.c
else
	FCEU_SRC_DIRS := $(LIBRETRO_DIR) $(FCEU_DIR) $(FCEU_DIR)/boards $(FCEU_DIR)/input $(FCEU_DIR)/mappers $(ZLIB_DIR)
	FCEU_CSRCS := $(foreach dir,$(FCEU_SRC_DIRS),$(wildcard $(dir)/*.c))
endif

FCEU_COBJ := $(FCEU_CSRCS:.c=.o)

OBJS := $(FCEU_COBJ)

FCEU_DEFINES := -D__LIBRETRO__ -DSOUND_QUALITY=0 -DPATH_MAX=1024 -DINLINE=inline -DPSS_STYLE=1 -DFCEU_VERSION_NUMERIC=9813 -DFRONTEND_SUPPORTS_RGB565 $(PLATFORM_DEFINES)

ifeq ($(platform), sncps3)
WARNING_DEFINES =
else
WARNING_DEFINES = -Wno-write-strings
endif

CFLAGS += $(CODE_DEFINES) $(fpic) $(WARNING_DEFINES) $(FCEU_DEFINES) $(ENDIANNESS_DEFINES)
LDFLAGS += -lm

INCDIRS := -I$(LIBRETRO_DIR) -I$(FCEU_DIR) -I$(FCEU_DIR)/input -I$(FCEU_DIR)/boards -I$(FCEU_DIR)/mappers
LIBS :=

ifeq ($(platform), psp1)
	INCDIRS += -I$(shell psp-config --pspsdk-path)/include
endif

ifeq ($(EXTERNAL_ZLIB), 0)
	INCDIRS += -I$(FCEU_DIR)/zlib
endif

all: $(TARGET)

$(TARGET): $(OBJS)
ifeq ($(STATIC_LINKING), 1)
	$(AR) rcs $@ $(OBJS)
else
	$(CC) -o $@ $(SHARED) $(OBJS) $(CFLAGS) $(LDFLAGS) $(LIBS)
endif

%.o: %.c
	$(CC) -c -o $@ $< $(CFLAGS) $(INCDIRS)

clean-objs:
	rm -f $(OBJS)

clean:
	rm -f $(OBJS)
	rm -f $(TARGET)

.PHONY: clean clean-objs