DEBUG                 = 0
PERF_TEST             = 0
LOAD_FROM_MEMORY_TEST = 1
USE_BLARGG_APU        = 0
LAGFIX                = 1

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

ifeq ($(USE_BLARGG_APU), 1)
	TARGET_NAME := snes9x2005_plus
else
	TARGET_NAME := snes9x2005
endif
GIT_VERSION := " $(shell git rev-parse --short HEAD || echo unknown)"
ifneq ($(GIT_VERSION)," unknown")
	CFLAGS += -DGIT_VERSION=\"$(GIT_VERSION)\"
endif

DEFS :=
LIBM := -lm

ifeq ($(platform), unix)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	SHARED := -shared -Wl,--no-undefined -Wl,--version-script=link.T
	CFLAGS += -fno-builtin -fno-exceptions -ffunction-sections
else ifeq ($(platform), linux-portable)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC -nostdlib
	SHARED := -shared -Wl,--version-script=link.T
	CFLAGS += -fno-builtin -fno-exceptions -ffunction-sections
	LIBM :=
else ifeq ($(platform), osx)
	TARGET := $(TARGET_NAME)_libretro.dylib
	fpic := -fPIC
	SHARED := -dynamiclib

ifeq ($(arch),ppc)
	FLAGS += -DMSB_FIRST
	OLD_GCC = 1
endif
	OSXVER = `sw_vers -productVersion | cut -d. -f 2`
	OSX_LT_MAVERICKS = `(( $(OSXVER) <= 9)) && echo "YES"`
	fpic += -mmacosx-version-min=10.1
ifndef ($(NOUNIVERSAL))
	FLAGS += $(ARCHFLAGS)
	LDFLAGS += $(ARCHFLAGS)
endif
# iOS
else ifneq (,$(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)
	CXX = c++ -arch armv7 -isysroot $(IOSSDK)
ifeq ($(platform),ios9)
	SHARED += -miphoneos-version-min=8.0
	CC +=  -miphoneos-version-min=8.0
	CXX +=  -miphoneos-version-min=8.0
else
	SHARED += -miphoneos-version-min=5.0
	CC +=  -miphoneos-version-min=5.0
	CXX +=  -miphoneos-version-min=5.0
endif
# Theos iOS
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 = $(TARGET_NAME)_libretro_ios
else ifeq ($(platform), qnx)
	TARGET := $(TARGET_NAME)_libretro_$(platform).so
	fpic := -fPIC
	SHARED := -shared -Wl,--no-undefined -Wl,--version-script=link.T
	CC = qcc -Vgcc_ntoarmv7le
	CXX = QCC -Vgcc_ntoarmv7le_cpp
# PS3
else ifeq ($(platform), ps3)
	TARGET := $(TARGET_NAME)_libretro_$(platform).a
	CC = $(CELL_SDK)/host-win32/ppu/bin/ppu-lv2-gcc.exe
	CXX = $(CELL_SDK)/host-win32/ppu/bin/ppu-lv2-g++.exe
	AR = $(CELL_SDK)/host-win32/ppu/bin/ppu-lv2-ar.exe
	STATIC_LINKING = 1
	FLAGS += -DMSB_FIRST
	OLD_GCC = 1
# PS3 (SNC)
else ifeq ($(platform), sncps3)
	TARGET := $(TARGET_NAME)_libretro_ps3.a
	CC = $(CELL_SDK)/host-win32/sn/bin/ps3ppusnc.exe
	CXX = $(CELL_SDK)/host-win32/sn/bin/ps3ppusnc.exe
	AR = $(CELL_SDK)/host-win32/sn/bin/ps3snarl.exe
	STATIC_LINKING = 1
	FLAGS += -DMSB_FIRST
	NO_GCC = 1
# PSP1
else ifeq ($(platform), psp1)
	TARGET := $(TARGET_NAME)_libretro_$(platform).a
	CC = psp-gcc$(EXE_EXT)
	CXX = psp-g++$(EXE_EXT)
	AR = psp-ar$(EXE_EXT)
	STATIC_LINKING = 1
	LOAD_FROM_MEMORY_TEST = 0
	FLAGS += -G0
	CFLAGS += \
		-march=allegrex -mno-abicalls -fno-pic \
		-fno-builtin -fno-exceptions -ffunction-sections
	DEFS +=  -DPSP -D_PSP_FW_VERSION=371
	STATIC_LINKING := 1
# Vita
else ifeq ($(platform), vita)
	TARGET := $(TARGET_NAME)_libretro_$(platform).a
	CC = arm-vita-eabi-gcc$(EXE_EXT)
	CXX = arm-vita-eabi-g++$(EXE_EXT)
	AR = arm-vita-eabi-ar$(EXE_EXT)
	STATIC_LINKING = 1
	LOAD_FROM_MEMORY_TEST = 0
	DEFS +=  -DVITA
	STATIC_LINKING := 1
# CTR (3DS)
else ifeq ($(platform), ctr)
	TARGET := $(TARGET_NAME)_libretro_$(platform).a
	CC = $(DEVKITARM)/bin/arm-none-eabi-gcc$(EXE_EXT)
	CXX = $(DEVKITARM)/bin/arm-none-eabi-g++$(EXE_EXT)
	AR = $(DEVKITARM)/bin/arm-none-eabi-ar$(EXE_EXT)
	CFLAGS += -DARM11 -D_3DS
	CFLAGS += -march=armv6k -mtune=mpcore -mfloat-abi=hard
	CFLAGS += -Wall -mword-relocations
	CFLAGS += -fomit-frame-pointer -ffast-math
	CFLAGS += -D_3DS
	PLATFORM_DEFINES := -D_3DS
	STATIC_LINKING = 1
# 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)
	CFLAGS += -DGEKKO -DHW_DOL -mrvl -mcpu=750 -meabi -mhard-float -D__ppc__ -DMSB_FIRST
	CFLAGS += -U__INT32_TYPE__ -U __UINT32_TYPE__ -D__INT32_TYPE__=int
	STATIC_LINKING = 1
# 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)
	CFLAGS += -DGEKKO -DHW_RVL -mrvl -mcpu=750 -meabi -mhard-float -D__ppc__ -DMSB_FIRST
	CFLAGS += -U__INT32_TYPE__ -U __UINT32_TYPE__ -D__INT32_TYPE__=int
	STATIC_LINKING = 1
# 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)
	CFLAGS += -DGEKKO -DWIIU -DHW_RVL -mwup -mcpu=750 -meabi -mhard-float -D__ppc__ -DMSB_FIRST
	CFLAGS += -U__INT32_TYPE__ -U __UINT32_TYPE__ -D__INT32_TYPE__=int
	STATIC_LINKING = 1
else ifeq ($(platform), emscripten)
	TARGET := $(TARGET_NAME)_libretro_$(platform).bc
	STATIC_LINKING = 1
# GCW0
else ifeq ($(platform), gcw0)
	TARGET := $(TARGET_NAME)_libretro.so
	CC = /opt/gcw0-toolchain/usr/bin/mipsel-linux-gcc
	CXX = /opt/gcw0-toolchain/usr/bin/mipsel-linux-g++
	AR = /opt/gcw0-toolchain/usr/bin/mipsel-linux-ar
	fpic := -fPIC -nostdlib
	SHARED := -shared -Wl,--version-script=link.T
	LIBM :=
	LOAD_FROM_MEMORY_TEST = 0
	CFLAGS += -ffast-math -march=mips32 -mtune=mips32r2 -mhard-float

# Windows MSVC 2010 x86
else ifeq ($(platform), windows_msvc2010_x86)
	CC  = cl.exe
	CXX = cl.exe

PATH := $(shell IFS=$$'\n'; cygpath "$(VS100COMNTOOLS)../../VC/bin"):$(PATH)
PATH := $(PATH):$(shell IFS=$$'\n'; cygpath "$(VS100COMNTOOLS)../IDE")
INCLUDE := $(shell IFS=$$'\n'; cygpath "$(VS100COMNTOOLS)../../VC/include")
LIB := $(shell IFS=$$'\n'; cygpath -w "$(VS100COMNTOOLS)../../VC/lib")
BIN := $(shell IFS=$$'\n'; cygpath "$(VS100COMNTOOLS)../../VC/bin")

WindowsSdkDir := $(shell reg query "HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.0A" -v "InstallationFolder" | grep -o '[A-Z]:\\.*')lib
WindowsSdkDir ?= $(shell reg query "HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.1A" -v "InstallationFolder" | grep -o '[A-Z]:\\.*')lib

export INCLUDE := $(INCLUDE)
export LIB := $(LIB);$(WindowsSdkDir)
TARGET := $(TARGET_NAME)_libretro.dll
PSS_STYLE :=2
LDFLAGS += -DLL
OLD_GCC = 1
else
	TARGET := $(TARGET_NAME)_libretro.dll
	CC = gcc
	CXX = g++
	SHARED := -shared -Wl,--no-undefined -Wl,--version-script=link.T
	LDFLAGS += -static-libgcc -static-libstdc++ -lwinmm
endif

LDFLAGS += $(LIBM)

CORE_DIR := ./source
LIBRETRO_DIR := .

include Makefile.common

ifeq ($(OLD_GCC), 1)
	WARNINGS := -Wall
else ifeq ($(NO_GCC), 1)
	WARNINGS :=
else
	WARNINGS := \
		-Wall \
		-Wextra \
		-pedantic \
		-Wno-implicit-function-declaration \
		-Wno-implicit-fallthrough \
		-Wno-sign-compare \
		-Wno-unused-variable \
		-Wno-unused-function \
		-Wno-uninitialized \
		-Wno-strict-aliasing \
		-Wno-overflow \
		-fno-strict-overflow
endif

ifeq ($(DEBUG),1)
	FLAGS += -O0 -g
else
	FLAGS += -O2 -DNDEBUG
endif

ifeq ($(PERF_TEST),1)
	FLAGS += -DPERF_TEST
endif

ifeq ($(LAGFIX),1)
	FLAGS += -DLAGFIX
endif

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

OBJECTS := $(SOURCES_C:.c=.o)

LDFLAGS += $(fpic) $(SHARED)

FLAGS += $(fpic)

CXXFLAGS += $(FLAGS)
CFLAGS += $(FLAGS)

ifneq (,$(findstring msvc,$(platform)))
	OBJOUT = -Fo
	LINKOUT = -out:
	LD = link.exe
else
	OBJOUT   = -o
	LINKOUT  = -o
	LD = $(CC)
endif

ifeq ($(platform), theos_ios)
	COMMON_FLAGS := -DIOS $(COMMON_DEFINES) $(INCFLAGS) -I$(THEOS_INCLUDE_PATH) -Wno-error
	$(LIBRARY_NAME)_CFLAGS += $(COMMON_FLAGS) $(CFLAGS)
	${LIBRARY_NAME}_FILES = $(SOURCES_C)
	include $(THEOS_MAKE_PATH)/library.mk
else
all: $(TARGET)
$(TARGET): $(OBJECTS)
ifeq ($(STATIC_LINKING), 1)
	$(AR) rcs $@ $(OBJECTS)
else
	$(CC) -o $@ $^ $(LDFLAGS)
endif

%.o: %.cpp
	$(CXX) -c $(OBJOUT)$@ $< $(CXXFLAGS)

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

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

.PHONY: clean
endif