DEBUG = 0

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

prefix := /usr
libdir := $(prefix)/lib

LIBRETRO_INSTALL_DIR := libretro

TARGET_NAME := prosystem
GIT_VERSION := " $(shell git rev-parse --short HEAD || echo unknown)"
ifneq ($(GIT_VERSION)," unknown")
	CFLAGS += -DGIT_VERSION=\"$(GIT_VERSION)\"
endif

SPACE :=
SPACE := $(SPACE) $(SPACE)
BACKSLASH :=
BACKSLASH := \$(BACKSLASH)
filter_out1 = $(filter-out $(firstword $1),$1)
filter_out2 = $(call filter_out1,$(call filter_out1,$1))
unixpath = $(subst \,/,$1)
unixcygpath = /$(subst :,,$(call unixpath,$1))

# Unix
ifeq ($(platform), unix)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	SHARED := -shared -Wl,--no-undefined -Wl,--version-script=link.T
	CFLAGS+=-fsigned-char

# OS X
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

# iOS
else ifneq (,$(findstring ios,$(platform)))
	TARGET := $(TARGET_NAME)_libretro_ios.dylib
	fpic := -fPIC
	SHARED := -dynamiclib
	ifeq ($(IOSSDK),)
		IOSSDK := $(shell xcodebuild -version -sdk iphoneos Path)
	endif
ifeq ($(platform),ios-arm64)
	CC = clang -arch arm64 -isysroot $(IOSSDK)
else
	CC = clang -arch armv7 -isysroot $(IOSSDK)
endif
ifeq ($(platform),$(filter $(platform),ios9 ios-arm64))
	CC     += -miphoneos-version-min=8.0
	SHARED += -miphoneos-version-min=8.0
else
	CC     += -miphoneos-version-min=5.0
	SHARED += -miphoneos-version-min=5.0
endif

# 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

# QNX
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

# 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
	STATIC_LINKING = 1
	FLAGS += -DMSB_FIRST
	OLD_GCC = 1

# 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)
	STATIC_LINKING = 1
	FLAGS += -DMSB_FIRST
	OLD_GCC = 1
	
# 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
	STATIC_LINKING = 1
	FLAGS += -DMSB_FIRST
	NO_GCC = 1

# Nintendo Game Cube
else ifeq ($(platform), ngc)
	EXT=a
	TARGET := $(TARGET_NAME)_libretro_$(platform).$(EXT)
	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
	STATIC_LINKING=1
	FLAGS += -DMSB_FIRST

# Nintendo Wii
else ifeq ($(platform), wii)
	EXT=a
	TARGET := $(TARGET_NAME)_libretro_$(platform).$(EXT)
	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
	STATIC_LINKING=1
	FLAGS += -DMSB_FIRST

# Nintendo Wii
else ifeq ($(platform), wiiu)
	EXT=a
	TARGET := $(TARGET_NAME)_libretro_$(platform).$(EXT)
	CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
	AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
	CFLAGS += -DGEKKO -DWIIU -DHW_RVL -mrvl -mcpu=750 -meabi -mhard-float -D__ppc__ -DMSB_FIRST
	STATIC_LINKING=1
	FLAGS += -DMSB_FIRST

# Nintendo Switch (libtransistor)
else ifeq ($(platform), switch)
	EXT=a
        TARGET := $(TARGET_NAME)_libretro_$(platform).$(EXT)
        include $(LIBTRANSISTOR_HOME)/libtransistor.mk
        STATIC_LINKING=1

# PSP
else ifeq ($(platform), psp1)
	TARGET := $(TARGET_NAME)_libretro_$(platform).a
	CC = psp-gcc$(EXE_EXT)
	AR = psp-ar$(EXE_EXT)
	STATIC_LINKING = 1
	FLAGS += -G0

# 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)
	STATIC_LINKING = 1
	FLAGS += -DVITA

# 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)
	FLAGS += -march=armv6k -mtune=mpcore -mfloat-abi=hard
	FLAGS += -Wall -mword-relocations
	FLAGS += -fomit-frame-pointer -ffast-math
	FLAGS += -DARM11 -D_3DS
	STATIC_LINKING = 1

# Raspberry Pi 1
else ifeq ($(platform), rpi1)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	SHARED := -shared -Wl,--no-undefined -Wl,--version-script=link.T
	CFLAGS+=-fsigned-char
	FLAGS += -DARM11 
	FLAGS += -marm -march=armv6j -mfpu=vfp -mfloat-abi=hard
	FLAGS += -fomit-frame-pointer -ffast-math

# Raspberry Pi 2
else ifeq ($(platform), rpi2)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	SHARED := -shared -Wl,--no-undefined -Wl,--version-script=link.T
	CFLAGS+=-fsigned-char
	FLAGS += -DARM 
	FLAGS += -marm -mcpu=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard
	FLAGS += -fomit-frame-pointer -ffast-math

# Raspberry Pi 3
else ifeq ($(platform), rpi3)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	SHARED := -shared -Wl,--no-undefined -Wl,--version-script=link.T
	CFLAGS+=-fsigned-char
	FLAGS += -DARM 
	FLAGS += -marm -marm -mcpu=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard
	FLAGS += -fomit-frame-pointer -ffast-math

else ifeq ($(platform), emscripten)
	TARGET := $(TARGET_NAME)_libretro_$(platform).bc
	STATIC_LINKING = 1

# Windows MSVC 2003 Xbox 1
else ifeq ($(platform), xbox1_msvc2003)
TARGET := $(TARGET_NAME)_libretro_xdk1.lib
CC  = CL.exe
CXX  = CL.exe
LD   = lib.exe

export INCLUDE := $(XDK)/xbox/include
export LIB := $(XDK)/xbox/lib
PATH := $(call unixcygpath,$(XDK)/xbox/bin/vc71):$(PATH)
PSS_STYLE :=2
CFLAGS   += -D_XBOX -D_XBOX1
CXXFLAGS += -D_XBOX -D_XBOX1
STATIC_LINKING=1
HAS_GCC := 0
# Windows MSVC 2010 Xbox 360
else ifeq ($(platform), xbox360_msvc2010)
TARGET := $(TARGET_NAME)_libretro_xdk360.lib
MSVCBINDIRPREFIX = $(XEDK)/bin/win32
CC  = "$(MSVCBINDIRPREFIX)/cl.exe"
CXX  = "$(MSVCBINDIRPREFIX)/cl.exe"
LD   = "$(MSVCBINDIRPREFIX)/lib.exe"

export INCLUDE := $(XEDK)/include/xbox
export LIB := $(XEDK)/lib/xbox
FLAGS += -DMSB_FIRST
PSS_STYLE :=2
CFLAGS   += -D_XBOX -D_XBOX360
CXXFLAGS += -D_XBOX -D_XBOX360
STATIC_LINKING=1
HAS_GCC := 0

# Windows MSVC 2010 x64
else ifeq ($(platform), windows_msvc2010_x64)
	CC  = cl.exe
	CXX = cl.exe

PATH := $(shell IFS=$$'\n'; cygpath "$(VS100COMNTOOLS)../../VC/bin/amd64"):$(PATH)
PATH := $(PATH):$(shell IFS=$$'\n'; cygpath "$(VS100COMNTOOLS)../IDE")
INCLUDE := $(shell IFS=$$'\n'; cygpath "$(VS100COMNTOOLS)../../VC/include")
LIB := $(shell IFS=$$'\n'; cygpath "$(VS100COMNTOOLS)../../VC/lib/amd64")
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/x64
WindowsSdkDir ?= $(shell reg query "HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.1A" -v "InstallationFolder" | grep -o '[A-Z]:\\.*')lib/x64

export INCLUDE := $(INCLUDE)
export LIB := $(LIB);$(WindowsSdkDir)
TARGET := $(TARGET_NAME)_libretro.dll
PSS_STYLE :=2
LDFLAGS += -DLL
# Windows MSVC 2010 x86
else ifeq ($(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

# Windows MSVC 2005 x86
else ifeq ($(platform), windows_msvc2005_x86)
	CC  = cl.exe
	CXX = cl.exe

PATH := $(shell IFS=$$'\n'; cygpath "$(VS80COMNTOOLS)../../VC/bin"):$(PATH)
PATH := $(PATH):$(shell IFS=$$'\n'; cygpath "$(VS80COMNTOOLS)../IDE")
INCLUDE := $(shell IFS=$$'\n'; cygpath "$(VS80COMNTOOLS)../../VC/include")
LIB := $(shell IFS=$$'\n'; cygpath -w "$(VS80COMNTOOLS)../../VC/lib")
BIN := $(shell IFS=$$'\n'; cygpath "$(VS80COMNTOOLS)../../VC/bin")

WindowsSdkDir := $(INETSDK)

export INCLUDE := $(INCLUDE);$(INETSDK)/Include;libretro-common/include/compat/msvc
export LIB := $(LIB);$(WindowsSdkDir);$(INETSDK)/Lib
TARGET := $(TARGET_NAME)_libretro.dll
PSS_STYLE :=2
LDFLAGS += -DLL
CFLAGS += -D_CRT_SECURE_NO_DEPRECATE

# Windows MSVC 2003 x86
else ifeq ($(platform), windows_msvc2003_x86)
	CC  = cl.exe
	CXX = cl.exe

PATH := $(shell IFS=$$'\n'; cygpath "$(VS71COMNTOOLS)../../Vc7/bin"):$(PATH)
PATH := $(PATH):$(shell IFS=$$'\n'; cygpath "$(VS71COMNTOOLS)../IDE")
INCLUDE := $(shell IFS=$$'\n'; cygpath "$(VS71COMNTOOLS)../../Vc7/include")
LIB := $(shell IFS=$$'\n'; cygpath -w "$(VS71COMNTOOLS)../../Vc7/lib")
BIN := $(shell IFS=$$'\n'; cygpath "$(VS71COMNTOOLS)../../Vc7/bin")

WindowsSdkDir := $(INETSDK)

export INCLUDE := $(INCLUDE);$(INETSDK)/Include;src/drivers/libretro/msvc/msvc-2005
export LIB := $(LIB);$(WindowsSdkDir);$(INETSDK)/Lib
TARGET := $(TARGET_NAME)_libretro.dll
PSS_STYLE :=2
LDFLAGS += -DLL
CFLAGS += -D_CRT_SECURE_NO_DEPRECATE

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

endif

CORE_DIR := core

include Makefile.common

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

ifeq ($(DEBUG), 1)
ifneq (,$(findstring msvc,$(platform)))
	ifeq ($(STATIC_LINKING),1)
	CFLAGS += -MTd
	CXXFLAGS += -MTd
else
	CFLAGS += -MDd
	CXXFLAGS += -MDd
endif

CFLAGS += -Od -Zi -DDEBUG -D_DEBUG
CXXFLAGS += -Od -Zi -DDEBUG -D_DEBUG
	else
	CFLAGS += -O0 -g -DDEBUG
	CXXFLAGS += -O0 -g -DDEBUG
endif
else
ifneq (,$(findstring msvc,$(platform)))
ifeq ($(STATIC_LINKING),1)
	CFLAGS += -MT
	CXXFLAGS += -MT
else
	CFLAGS += -MD
	CXXFLAGS += -MD
endif

CFLAGS += -O2 -DNDEBUG
CXXFLAGS += -O2 -DNDEBUG
else
	CFLAGS += -O2 -DNDEBUG
	CXXFLAGS += -O2 -DNDEBUG
endif
endif

LDFLAGS += $(fpic) $(SHARED)
FLAGS += $(fpic) 
FLAGS += $(INCFLAGS)

ifeq ($(OLD_GCC), 1)
WARNINGS := -Wall
else ifeq ($(NO_GCC), 1)
WARNINGS :=
else ifneq (,$(findstring msvc,$(platform)))
WARNINGS :=
else
WARNINGS := -Wall \
	-Wno-sign-compare \
	-Wno-unused-variable \
	-Wno-unused-function \
	-Wno-uninitialized \
	-Wno-strict-aliasing \
	-Wno-overflow \
	-fno-strict-overflow
endif

FLAGS += -D__LIBRETRO__ $(WARNINGS)

CFLAGS += $(FLAGS)

ifneq (,$(findstring msvc,$(platform)))
	OBJOUT = -Fo
	LINKOUT = -out:
ifeq ($(STATIC_LINKING),1)
	LD ?= lib.exe
	STATIC_LINKING=0
else
	LD = link.exe
endif
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 += $(CFLAGS) $(COMMON_FLAGS)
${LIBRARY_NAME}_FILES = $(SOURCES_C)
include $(THEOS_MAKE_PATH)/library.mk
else
all: $(TARGET)
$(TARGET): $(OBJECTS)
ifeq ($(STATIC_LINKING), 1)
	$(AR) rcs $@ $(OBJECTS)
else
	$(LD) $(LINKOUT)$@ $^ $(LDFLAGS)
endif

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

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

install:
	install -D -m 755 $(TARGET) $(DESTDIR)$(libdir)/$(LIBRETRO_INSTALL_DIR)/$(TARGET)

uninstall:
	rm $(DESTDIR)$(libdir)/$(LIBRETRO_INSTALL_DIR)/$(TARGET)

.PHONY: clean install uninstall
endif
