DEBUG = 0
HAVE_VFS_FD := 1
CORE_DIR := .
BUILD_DIR := libretro-build

ifeq ($(platform),windows_x86)
   include $(BUILD_DIR)/Makefile.windows_x86
#else ifeq ($(platform),wii_ppc)
   #include $(BUILD_DIR)/Makefile.wii_ppc
else ifeq ($(platform),android_armeabi)
   include $(BUILD_DIR)/Makefile.android_armeabi
else ifeq ($(platform),android_arm64-v8a)
   include $(BUILD_DIR)/Makefile.android_arm64-v8a
else ifeq ($(platform),mingw_x86)
   include $(BUILD_DIR)/Makefile.mingw_x86
else ifeq ($(platform),mingw_x86_64)
   include $(BUILD_DIR)/Makefile.mingw_x86_64
else ifeq ($(platform),windows_x86_64)
   include $(BUILD_DIR)/Makefile.windows_x86_64
else ifeq ($(platform),linux_x86)
   include $(BUILD_DIR)/Makefile.linux_x86
else ifeq ($(platform),linux_x86_64)
   include $(BUILD_DIR)/Makefile.linux_x86_64
else ifeq ($(platform),android_armeabi-v7a)
   include $(BUILD_DIR)/Makefile.android_armeabi-v7a
else ifeq ($(platform),android_x86)
   include $(BUILD_DIR)/Makefile.android_x86
else ifeq ($(platform),android_mips64)
   include $(BUILD_DIR)/Makefile.android_mips64
else ifeq ($(platform),android_x86_64)
   include $(BUILD_DIR)/Makefile.android_x86_64
else ifeq ($(platform),linux-portable_x86)
   include $(BUILD_DIR)/Makefile.linux-portable_x86
else ifeq ($(platform),linux-portable_x86_64)
   include $(BUILD_DIR)/Makefile.linux-portable_x86_64
else ifeq ($(platform),android_mips)
   include $(BUILD_DIR)/Makefile.android_mips
else

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
else ifneq (,$(findstring armv,$(platform)))
   override platform += unix
else ifneq (,$(findstring rpi3,$(platform)))
   override platform += unix
endif

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

TARGET_NAME := mgba

DEFINES :=

# GIT HASH
GIT_VERSION := " $(shell git rev-parse --short HEAD || echo unknown)"
ifneq ($(GIT_VERSION)," unknown")
   DEFINES += -DGIT_VERSION=\"$(GIT_VERSION)\"
endif

# Unix
ifneq (,$(findstring unix,$(platform)))
   TARGET := $(TARGET_NAME)_libretro.so
   fpic := -fPIC
   SHARED := -shared -Wl,-version-script=link.T
   DEFINES += -std=c99 -D_GNU_SOURCE -DHAVE_LOCALE
   
   # Raspberry Pi 3
   ifneq (,$(findstring rpi3,$(platform)))
      # Using NEON optimizations results in an instant crashing core
      PLATFORM_DEFINES += -marm -mcpu=cortex-a53 -mfloat-abi=hard
      CFLAGS += -fomit-frame-pointer -ffast-math
      HAVE_VFS_FD = 0
   endif

# OS X
else ifeq ($(platform), osx)
   TARGET := $(TARGET_NAME)_libretro.dylib
   fpic := -fPIC
   SHARED := -dynamiclib
   OSXVER = `sw_vers -productVersion | cut -d. -f 2`
   OSX_LT_MAVERICKS = `(( $(OSXVER) <= 9)) && echo "YES"`
   fpic += -mmacosx-version-min=10.1
   ifndef ($(NOUNIVERSAL))
      CFLAGS += $(ARCHFLAGS)
      LDFLAGS += $(ARCHFLAGS)
   endif
   ifeq ($(arch),ppc)
      DEFINES += -D__POWERPC__ -D__PPC__ -DMSB_FIRST
   endif
   DEFINES += -DHAVE_LOCALE
   DEFINES += -std=c99

# iOS
else ifneq (,$(findstring ios,$(platform)))
   TARGET := $(TARGET_NAME)_libretro_ios.dylib
   fpic := -fPIC
   SHARED := -dynamiclib
   ifeq ($(IOSSDK),)
      IOSSDK := $(shell xcodebuild -version -sdk iphoneos Path)
   endif
   CC = cc -arch armv7 -isysroot $(IOSSDK)
   ifeq ($(platform),ios9)
      CC += -miphoneos-version-min=8.0
      PLATFORM_DEFINES := -miphoneos-version-min=8.0
   else
      CC += -miphoneos-version-min=5.0
      PLATFORM_DEFINES := -miphoneos-version-min=5.0
   endif
   DEFINES += -DHAVE_LOCALE
   DEFINES += -std=c99

# Theos
else ifeq ($(platform), theos_ios)
   DEPLOYMENT_IOSVERSION = 5.0
   TARGET = iphone:latest:$(DEPLOYMENT_IOSVERSION)
   ARCHS = armv7 armv7s
   TARGET_IPHONEOS_DEPLOYMENT_VERSION=$(DEPLOYMENT_IOSVERSION)
   THEOS_BUILD_DIR := objs
   include $(THEOS)/makefiles/common.mk
   LIBRARY_NAME = $(TARGET_NAME)_libretro_ios
   DEFINES += -DHAVE_LOCALE
   DEFINES += -std=c99

# QNX
else ifeq ($(platform), qnx)
   TARGET := $(TARGET_NAME)_libretro_qnx.so
   fpic := -fPIC
   SHARED := -lcpp -lm -shared -Wl,-version-script=link.T
   CC = qcc -Vgcc_ntoarmv7le
   AR = QCC -Vgcc_ntoarmv7le
   PLATFORM_DEFINES := -D__BLACKBERRY_QNX__ -fexceptions -marm -mcpu=cortex-a9 -mfpu=neon -mfloat-abi=softfp
   DEFINES += -Wc,-std=c99

# PS3
else ifeq ($(platform), ps3)
   TARGET := $(TARGET_NAME)_libretro_$(platform).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
   DEFINES += -std=c99
   HAVE_VFS_FD = 0

# sncps3
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
   DEFINES += -std=c99
   HAVE_VFS_FD = 0

# Lightweight PS3 Homebrew SDK
else ifeq ($(platform), psl1ght)
   TARGET := $(TARGET_NAME)_libretro_$(platform).a
   CC = $(PS3DEV)/ppu/bin/ppu-gcc$(EXE_EXT)
   AR = $(PS3DEV)/ppu/bin/ppu-ar$(EXE_EXT)
   PLATFORM_DEFINES := -D__CELLOS_LV2__
   STATIC_LINKING = 1
   DEFINES += -std=c99
   HAVE_VFS_FD = 0

# PSP
else ifeq ($(platform), psp1)
   TARGET := $(TARGET_NAME)_libretro_$(platform).a
   CC = psp-gcc$(EXE_EXT)
   AR = psp-ar$(EXE_EXT)
   PLATFORM_DEFINES := -DPSP -DCC_RESAMPLER
   CFLAGS += -G0 -I$(shell psp-config --pspsdk-path)/include
   STATIC_LINKING = 1
   DEFINES += -std=c99

# Vita
else ifeq ($(platform), vita)
   TARGET := $(TARGET_NAME)_libretro_$(platform).a
   CC = arm-vita-eabi-gcc$(EXE_EXT)
   AR = arm-vita-eabi-ar$(EXE_EXT)
   PLATFORM_DEFINES := -DVITA -DCC_RESAMPLER -DPSP2
   STATIC_LINKING = 1
   DEFINES += -std=c99


# CTR(3DS)
else ifeq ($(platform), ctr)
   TARGET := $(TARGET_NAME)_libretro_$(platform).a
   CC = $(DEVKITARM)/bin/arm-none-eabi-gcc$(EXE_EXT)
   AR = $(DEVKITARM)/bin/arm-none-eabi-ar$(EXE_EXT)
   PLATFORM_DEFINES := -DARM11 -D_3DS

   CFLAGS += -march=armv6k -mtune=mpcore -mfloat-abi=hard
   CFLAGS += -Wall -mword-relocations
   CFLAGS += -fomit-frame-pointer -ffast-math
   CFLAGS += -I$(CTRULIB)/include
   DEFINES += -std=c99

   PLATFORM_DEFINES += -DUSE_VFS_3DS
   CFLAGS += -DDISABLE_THREADING
   STATIC_LINKING = 1


# Xbox 360
else ifeq ($(platform), xenon)
   TARGET := $(TARGET_NAME)_libretro_xenon360.a
   CC = xenon-gcc$(EXE_EXT)
   AR = xenon-ar$(EXE_EXT)
   PLATFORM_DEFINES := -D__LIBXENON__
   STATIC_LINKING = 1
   DEFINES += -std=c99
   HAVE_VFS_FD = 0

# Nintendo Game Cube
else ifeq ($(platform), ngc)
   TARGET := $(TARGET_NAME)_libretro_$(platform).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 -DHAVE_STRTOF_L -DHAVE_LOCALE
   PLATFORM_DEFINES += -U__INT32_TYPE__ -U __UINT32_TYPE__ -D__INT32_TYPE__=int -D_GNU_SOURCE
   STATIC_LINKING = 1
   DEFINES += -std=c99
   HAVE_VFS_FD = 0

# Nintendo Wii
else ifeq ($(platform), wii)
   TARGET := $(TARGET_NAME)_libretro_$(platform).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 -DHAVE_STRTOF_L -DHAVE_LOCALE
   PLATFORM_DEFINES += -U__INT32_TYPE__ -U __UINT32_TYPE__ -D__INT32_TYPE__=int -D_GNU_SOURCE
   STATIC_LINKING = 1
   DEFINES += -std=c99
   HAVE_VFS_FD = 0

# Nintendo WiiU
else ifeq ($(platform), wiiu)
   TARGET := $(TARGET_NAME)_libretro_$(platform).a
   CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
   AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
   PLATFORM_DEFINES += -DGEKKO -DWIIU -DHW_RVL -mwup -mcpu=750 -meabi -mhard-float -DHAVE_STRTOF_L -DHAVE_LOCALE
   PLATFORM_DEFINES += -U__INT32_TYPE__ -U __UINT32_TYPE__ -D__INT32_TYPE__=int -D_GNU_SOURCE
   STATIC_LINKING = 1
   DEFINES += -std=c99
   HAVE_VFS_FD = 0

# emscripten
else ifeq ($(platform), emscripten)
   TARGET := $(TARGET_NAME)_libretro_$(platform).bc
   DEFINES += -std=gnu99
   DEFINES += -DHAVE_LOCALE

# Windows
else
   TARGET := $(TARGET_NAME)_libretro.dll
   CC = gcc
   SHARED := -shared -static-libgcc -static-libstdc++ -Wl,-no-undefined -Wl,-version-script=link.T
   DEFINES += -std=c99 -DDISABLE_THREADING

endif

ifeq ($(DEBUG), 1)
   CFLAGS += -O0 -g
else ifeq ($(platform), emscripten)
   CFLAGS += -O2
else
   CFLAGS += -O3
endif

DEFINES += -DHAVE_STRNDUP -DHAVE_STRDUP


include $(BUILD_DIR)/Makefile.common

OBJS := $(SOURCES_C:.c=.o) $(SOURCES_ASM:.S=.o)

DEFINES += $(PLATFORM_DEFINES) $(RETRODEFS)

CFLAGS += $(CODE_DEFINES) $(fpic) $(DEFINES)

LIBS :=

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


ifeq ($(platform), theos_ios)
COMMON_FLAGS := -DIOS $(COMMON_DEFINES) $(INCLUDES) -I$(THEOS_INCLUDE_PATH) -Wno-error
$(LIBRARY_NAME)_CFLAGS += $(CFLAGS) $(COMMON_FLAGS)
${LIBRARY_NAME}_FILES = $(SOURCES_C)
include $(THEOS_MAKE_PATH)/library.mk
else
all: $(TARGET)

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


clean-objs:
	rm -f $(OBJS)

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

.PHONY: clean clean-objs
endif

endif