Makefile.libretro

# Makefile for PicoDrive (libretro)

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

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

CC ?= gcc
CXX ?= g++
AS ?= as
CC_AS ?= $(CC)
CFLAGS ?=

#libretro includes
CFLAGS += -I platform/libretro/libretro-common/include
CFLAGS += -I platform/libretro/libretro-common/include/compat
CFLAGS += -I platform/libretro/libretro-common/include/encodings
CFLAGS += -I platform/libretro/libretro-common/include/streams
CFLAGS += -I platform/libretro/libretro-common/include/string
CFLAGS += -I platform/libretro/libretro-common/include/vfs

STATIC_LINKING:= 0
STATIC_LINKING_LINK:= 0
TARGET_NAME := picodrive
LIBM := -lm
GIT_VERSION ?= $(shell git rev-parse --short HEAD || echo unknown)
ifneq ($(GIT_VERSION),"unknown")
	CFLAGS += -DGIT_VERSION=\"$(GIT_VERSION)\"
endif

fpic :=

ifeq ($(STATIC_LINKING),1)
EXT=a
endif

# Unix
ifeq ($(platform), unix)
	EXT ?= so
	TARGET := $(TARGET_NAME)_libretro.$(EXT)
	fpic := -fPIC
	SHARED := -shared
	CFLAGS += -DFAMEC_NO_GOTOS
ifneq ($(findstring SunOS,$(shell uname -a)),)
	CC=gcc
endif

# x86/x86_64 generic
else ifneq (,$(findstring x86,$(platform)))
	TARGET := $(TARGET_NAME)_libretro.so
	ARCH := 86
        fpic := -fPIC
	SHARED := -shared
	DONT_COMPILE_IN_ZLIB = 1
	CFLAGS += -DFAMEC_NO_GOTOS

# AARCH64 generic
else ifeq ($(platform), aarch64)
	TARGET := $(TARGET_NAME)_libretro.so
	ARCH = aarch64
        fpic := -fPIC
	SHARED := -shared
	DONT_COMPILE_IN_ZLIB = 1
	CFLAGS += -DFAMEC_NO_GOTOS

# Portable Linux
else ifeq ($(platform), linux-portable)
	EXT ?= so
	TARGET := $(TARGET_NAME)_libretro.$(EXT)
	SHARED := -shared -nostdlib
	fpic := -fPIC
	LIBM :=
	CFLAGS += -DFAMEC_NO_GOTOS

# OS X
else ifeq ($(platform), osx)
	EXT ?= dylib
	TARGET := $(TARGET_NAME)_libretro.$(EXT)
	SHARED := -dynamiclib
	fpic := -fPIC
	APPLE := 1
        MINVERSION := -mmacosx-version-min=10.6
	ifeq ($(shell uname -p),powerpc)
		CFLAGS += -DHAVE_NO_LANGEXTRA
		CFLAGS += -DBLARGG_BIG_ENDIAN=1 -D__ppc__ -DFAMEC_NO_GOTOS
	endif
	OSXVER = `sw_vers -productVersion | cut -d. -f 2`
	OSX_LT_MAVERICKS = `(( $(OSXVER) <= 9)) && echo "YES"`
	SHARED += $(MINVERSION)

   ifeq ($(CROSS_COMPILE),1)
        TARGET_RULE   = -target $(LIBRETRO_APPLE_PLATFORM) -isysroot $(LIBRETRO_APPLE_ISYSROOT)
        CFLAGS   += $(TARGET_RULE)
        CPPFLAGS += $(TARGET_RULE)
        CXXFLAGS += $(TARGET_RULE)
        LDFLAGS  += $(TARGET_RULE)
   endif

   ifndef ($(NOUNIVERSAL))
      CFLAGS  += $(ARCHFLAGS)
      LDFLAGS += $(ARCHFLAGS)
   endif

else ifeq ($(platform), staticios)
	TARGET := $(TARGET_NAME)_libretro_ios.a
	APPLE := 1
	ifeq ($(IOSSDK),)
		IOSSDK := $(shell xcodebuild -version -sdk iphoneos Path)
	endif
	CC = clang -arch armv7 -arch arm64 -isysroot $(IOSSDK)
	CXX = clang++ -arch armv7 -arch arm64 -isysroot $(IOSSDK)
	CC_AS = perl ./tools/gas-preprocessor.pl $(CC)
	CFLAGS += -marm 
	CFLAGS += -DIOS

	CC     += -miphoneos-version-min=8.0
	CXX    += -miphoneos-version-min=8.0
	CC_AS  += -miphoneos-version-min=8.0
	CFLAGS += -miphoneos-version-min=8.0

	STATIC_LINKING = 1
	STATIC_LINKING_LINK = 1

# iOS
else ifneq (,$(findstring ios,$(platform)))
        TARGET := $(TARGET_NAME)_libretro_ios.dylib
        SHARED := -dynamiclib
        fpic := -fPIC
        APPLE := 1
        MINVERSION :=
	ifeq ($(IOSSDK),)
		IOSSDK := $(shell xcodebuild -version -sdk iphoneos Path)
	endif
	ifeq ($(platform),ios-arm64)
	  CC = clang -arch arm64 -isysroot $(IOSSDK)
	  CXX = clang++ -arch arm64 -isysroot $(IOSSDK)
	  CFLAGS += -marm -DARM -D__aarch64__=1 
	else
	  CC = clang -arch armv7 -isysroot $(IOSSDK)
	  CXX = clang++ -arch armv7 -isysroot $(IOSSDK)
	  CC_AS = perl ./tools/gas-preprocessor.pl $(CC)
	  CFLAGS += -mcpu=cortex-a8 -mtune=cortex-a8 -mfpu=neon -marm 
	  ASFLAGS += -mcpu=cortex-a8 -mtune=cortex-a8 -mfpu=neon
	  NO_ARM_ASM = 1
	endif
	CFLAGS += -DIOS

ifeq ($(platform),$(filter $(platform),ios9 ios-arm64))
	MINVERSION = -miphoneos-version-min=8.0
else
	MINVERSION = -miphoneos-version-min=5.0
endif
        CC     += $(MINVERSION)
        CXX    += $(MINVERSION)
        CC_AS  += $(MINVERSION)
        CFLAGS += $(MINVERSION)

# tvOS
else ifeq ($(platform), tvos-arm64)
	TARGET := $(TARGET_NAME)_libretro_tvos.dylib
	SHARED := -dynamiclib
	fpic := -fPIC
	APPLE := 1
        ifeq ($(IOSSDK),)
           IOSSDK := $(shell xcodebuild -version -sdk appletvos Path)
        endif
	CC_AS   = perl ./tools/gas-preprocessor.pl $(CC)
	CC      = cc -arch arm64 -isysroot $(IOSSDK)
	CXX     = c++ -arch arm64 -isysroot $(IOSSDK)
	CFLAGS += -marm -DARM -D__aarch64__=1 
	CFLAGS += -DIOS

# 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)
	CFLAGS += -DBLARGG_BIG_ENDIAN=1 -D__ppc__ -DFAMEC_NO_GOTOS
	STATIC_LINKING = 1
	STATIC_LINKING_LINK = 1
	NO_MMAP = 1
	# PS3 has memory mapped in a way not suitable for DRC
	use_sh2drc = 0
	use_svpdrc = 0

# PSP
else ifeq ($(platform), psp1)
	ARCH = mipsel
	TARGET := $(TARGET_NAME)_libretro_$(platform).a
	CC = psp-gcc$(EXE_EXT)
	AR = psp-ar$(EXE_EXT)
	CFLAGS += -DPSP -G0 -ftracer
	CFLAGS += -I$(shell psp-config --pspsdk-path)/include
	STATIC_LINKING = 1
	STATIC_LINKING_LINK = 1
	NO_MMAP = 1

# PS2
else ifeq ($(platform), ps2)
	ARCH = mipsel
	TARGET := $(TARGET_NAME)_libretro_$(platform).a
	CC = mips64r5900el-ps2-elf-gcc$(EXE_EXT)
	AR = mips64r5900el-ps2-elf-ar$(EXE_EXT)
	CFLAGS += -Wall -DPS2 -D_EE -DUSE_BGR555 -DFAMEC_NO_GOTOS -DRENDER_GSKIT_PS2 -fsingle-precision-constant
	CFLAGS += -I$(PS2DEV)/gsKit/include -I$(PS2SDK)/ee/include -I$(PS2SDK)/common/include
	CFLAGS += -DHAVE_NO_LANGEXTRA
	STATIC_LINKING = 1
	STATIC_LINKING_LINK = 1
	NO_MMAP = 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 -marm -mfpu=vfp
	CFLAGS += -Wall -mword-relocations
	CFLAGS += -fomit-frame-pointer -ffast-math
	STATIC_LINKING = 1
	STATIC_LINKING_LINK = 1
	NO_MMAP = 1

	OBJS += platform/libretro/3ds/3ds_utils.o platform/libretro/3ds/utils.o

# Raspberry Pi (original model) Raspbian
else ifeq ($(platform), raspberrypi)
	CFLAGS += -marm -mfpu=vfp -mfloat-abi=hard -march=armv6j
	CFLAGS += -Wall -mword-relocations
	CFLAGS += -fomit-frame-pointer -ffast-math

	TARGET := $(TARGET_NAME)_libretro.so
	SHARED := -shared
	fpic := -fPIC

# 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)
	CFLAGS += -DVITA
	CFLAGS += -marm -mfpu=neon -mcpu=cortex-a9 -march=armv7-a -mfloat-abi=hard -ffast-math
	CFLAGS += -fno-asynchronous-unwind-tables -ftree-vectorize -funroll-loops
	CFLAGS += -mword-relocations -fno-unwind-tables
	CFLAGS += -fno-optimize-sibling-calls
	STATIC_LINKING = 1
	STATIC_LINKING_LINK = 1
	NO_MMAP = 1

# Xbox 360
else ifeq ($(platform), xenon)
	TARGET := $(TARGET_NAME)_libretro_xenon360.a
	CC = xenon-gcc$(EXE_EXT)
	AR = xenon-ar$(EXE_EXT)
	CFLAGS += -D__LIBXENON__ -m32 -D__ppc__

# 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
	STATIC_LINKING = 1
	STATIC_LINKING_LINK = 1
	NO_MMAP = 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
	STATIC_LINKING = 1
	STATIC_LINKING_LINK = 1
	NO_MMAP = 1

# Nintendo Wii U
else ifeq ($(platform), wiiu)
	TARGET := $(TARGET_NAME)_libretro_$(platform).a
	CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
	CXX = $(DEVKITPPC)/bin/powerpc-eabi-g++$(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
	STATIC_LINKING = 1
	STATIC_LINKING_LINK = 1
	NO_MMAP = 1
	# Wii U has memory mapped in a way not suitable for DRC
	use_sh2drc = 0
	use_svpdrc = 0

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

# Nintendo Switch (libnx)
else ifeq ($(platform), libnx)
	include $(DEVKITPRO)/libnx/switch_rules
	TARGET := $(TARGET_NAME)_libretro_$(platform).a
	CFLAGS += -O3 -fomit-frame-pointer -ffast-math -I$(DEVKITPRO)/libnx/include/ -fPIE -Wl,--allow-multiple-definition
	CFLAGS += -specs=$(DEVKITPRO)/libnx/switch.specs
	CFLAGS += -D__SWITCH__ -DHAVE_LIBNX
	CFLAGS += -DARM -D__aarch64__=1 -march=armv8-a -mtune=cortex-a57 -mtp=soft -ffast-math -mcpu=cortex-a57+crc+fp+simd -ffunction-sections
	CFLAGS += -Ifrontend/switch -ftree-vectorize
	STATIC_LINKING=1
	STATIC_LINKING_LINK = 1

# QNX
else ifeq ($(platform), qnx)
	ARCH = arm
	TARGET := $(TARGET_NAME)_libretro_$(platform).so
	fpic := -fPIC
	CC = qcc -Vgcc_ntoarmv7le
	CC_AS = $(CC)
	CFLAGS += -DBASE_ADDR_FIXED=0 -D__BLACKBERRY_QNX__ -marm -mcpu=cortex-a9 -mtune=cortex-a9 -mfpu=neon -mfloat-abi=softfp
	ASFLAGS +=  -mcpu=cortex-a9 -mfpu=neon -mfloat-abi=softfp

# (armv7 a7, hard point, neon based) ### 
# NESC, SNESC, C64 mini 
else ifeq ($(platform), classic_armv7_a7)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	SHARED := -shared -Wl,--no-undefined,-Bsymbolic
	CFLAGS += -Ofast \
	-flto=4 -fwhole-program -fuse-linker-plugin \
	-fdata-sections -ffunction-sections -Wl,--gc-sections \
	-fno-stack-protector -fno-ident -fomit-frame-pointer \
	-falign-functions=1 -falign-jumps=1 -falign-loops=1 \
	-fno-unwind-tables -fno-asynchronous-unwind-tables -fno-unroll-loops \
	-fmerge-all-constants -fno-math-errno \
	-marm -mtune=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard
	CXXFLAGS += $(CFLAGS)
	CPPFLAGS += $(CFLAGS)
	ASFLAGS += $(CFLAGS)
	HAVE_NEON = 1
	BUILTIN_GPU = neon
	ifeq ($(shell echo `$(CC) -dumpversion` "< 4.9" | bc -l), 1)
	  CFLAGS += -march=armv7-a
	else
	  CFLAGS += -march=armv7ve
	  # If gcc is 5.0 or later
	  ifeq ($(shell echo `$(CC) -dumpversion` ">= 5" | bc -l), 1)
	    LDFLAGS += -static-libgcc -static-libstdc++
	  endif
	endif

# (armv8 a35, hard point, neon based) ###
# Playstation Classic
else ifeq ($(platform), classic_armv8_a35)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	SHARED := -shared -Wl,--no-undefined,-Bsymbolic
	CFLAGS += -Ofast \
		-flto -fwhole-program -fuse-linker-plugin \
		-fdata-sections -ffunction-sections -Wl,--gc-sections \
		-fno-stack-protector -fno-ident -fomit-frame-pointer \
		-falign-functions=1 -falign-jumps=1 -falign-loops=1 \
		-fno-unwind-tables -fno-asynchronous-unwind-tables -fno-unroll-loops \
		-fmerge-all-constants -fno-math-errno -fno-strict-aliasing \
		-marm -mtune=cortex-a35 -mfpu=neon-fp-armv8 -mfloat-abi=hard
	CXXFLAGS += $(CFLAGS)
	CPPFLAGS += $(CFLAGS)
	ASFLAGS += $(CFLAGS)
	HAVE_NEON = 1
	BUILTIN_GPU = neon
	CFLAGS += -march=armv8-a
	LDFLAGS += -static-libgcc -static-libstdc++

#######################################

# ARM-64
else ifeq ($(platform), arm64)
	EXT ?= so
	TARGET := $(TARGET_NAME)_libretro.$(EXT)
	ARCH = aarch64
	fpic := -fPIC
	SHARED := -shared
	CFLAGS += -DFAMEC_NO_GOTOS

# AARCH64 generic
else ifeq ($(platform), aarch64)
	TARGET := $(TARGET_NAME)_libretro.so
	ARCH = aarch64
	fpic := -fPIC
	SHARED := -shared
	CFLAGS += -DFAMEC_NO_GOTOS

# ARM
else ifneq (,$(findstring armv,$(platform)))
	TARGET := $(TARGET_NAME)_libretro.so
	SHARED := -shared -Wl,--no-undefined,-Bsymbolic
	fpic := -fPIC
	ifneq (,$(findstring cortexa5,$(platform)))
		CFLAGS += -marm -mcpu=cortex-a5
		ASFLAGS += -mcpu=cortex-a5
	else ifneq (,$(findstring cortexa8,$(platform)))
		CFLAGS += -marm -mcpu=cortex-a8
		ASFLAGS += -mcpu=cortex-a8
	else ifneq (,$(findstring cortexa9,$(platform)))
		CFLAGS += -marm -mcpu=cortex-a9
		ASFLAGS += -mcpu=cortex-a9
	else ifneq (,$(findstring cortexa15a7,$(platform)))
		CFLAGS += -marm -mcpu=cortex-a15.cortex-a7
		ASFLAGS += -mcpu=cortex-a15.cortex-a7
	else
		CFLAGS += -marm
	endif
	ifneq (,$(findstring neon,$(platform)))
		CFLAGS += -mfpu=neon
		ASFLAGS += -mfpu=neon
	endif
	ifneq (,$(findstring softfloat,$(platform)))
		CFLAGS += -mfloat-abi=softfp
		ASFLAGS += -mfloat-abi=softfp
	else ifneq (,$(findstring hardfloat,$(platform)))
		CFLAGS += -mfloat-abi=hard
		ASFLAGS += -mfloat-abi=hard
	endif
	ifeq (,$(findstring armasm,$(platform)))
		NO_ARM_ASM = 1
	endif

# Emscripten
else ifeq ($(platform), emscripten) 
	TARGET := $(TARGET_NAME)_libretro_$(platform).bc
	ARCH = unknown

	STATIC_LINKING = 1

# GCW0
else ifeq ($(platform), gcw0)
	TARGET := $(TARGET_NAME)_libretro.so
ifeq (,$(shell command -v $(GCW0_PREFIX)mipsel-gcw0-linux-uclibc-gcc 2>/dev/null))
	# locate the toolchain for buildbot if it isn't in path or prefix not set
	GCW0_PREFIX = /opt/gcw0-toolchain/usr/bin/
endif
	CC = $(GCW0_PREFIX)mipsel-linux-gcc
	AR = $(GCW0_PREFIX)mipsel-linux-ar
	SHARED := -shared -nostdlib
	fpic := -fPIC
	LIBM :=
	CFLAGS += -fomit-frame-pointer -ffast-math -march=mips32 -mtune=mips32r2 -mhard-float -D__GCW0__
	# clear_cache uses SYNCI instead of a syscall
	CFLAGS += -DMIPS_USE_SYNCI

# Windows MSVC 2017 all architectures
else ifneq (,$(findstring windows_msvc2017,$(platform)))
	NO_GCC := 1

	PlatformSuffix = $(subst windows_msvc2017_,,$(platform))
	ifneq (,$(findstring desktop,$(PlatformSuffix)))
		WinPartition = desktop
		MSVC2017CompileFlags = -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -FS
		LDFLAGS += -MANIFEST -LTCG:incremental -NXCOMPAT -DYNAMICBASE -DEBUG -OPT:REF -INCREMENTAL:NO -SUBSYSTEM:WINDOWS -MANIFESTUAC:"level='asInvoker' uiAccess='false'" -OPT:ICF -ERRORREPORT:PROMPT -NOLOGO -TLBID:1
		LDLIBS += kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib
	else ifneq (,$(findstring uwp,$(PlatformSuffix)))
		WinPartition = uwp
		MSVC2017CompileFlags = -DWINAPI_FAMILY=WINAPI_FAMILY_APP -D_WINDLL -D_UNICODE -DUNICODE -D__WRL_NO_DEFAULT_LIB__ -EHsc -FS
		LDFLAGS += -APPCONTAINER -NXCOMPAT -DYNAMICBASE -MANIFEST:NO -LTCG -OPT:REF -SUBSYSTEM:CONSOLE -MANIFESTUAC:NO -OPT:ICF -ERRORREPORT:PROMPT -NOLOGO -TLBID:1 -DEBUG:FULL -WINMD:NO
		LDLIBS += WindowsApp.lib
	endif

	ARCH = x86_64
	SHARED :=
	LIBM :=
	USE_LIBRETRO_VFS = 1
	NO_ALIGN_FUNCTIONS = 1

	CFLAGS += -DHAVE_VSNPRINTF
	CFLAGS += $(MSVC2017CompileFlags)
	CXXFLAGS += $(MSVC2017CompileFlags)

	TargetArchMoniker = $(subst $(WinPartition)_,,$(PlatformSuffix))

	CC  = cl.exe
	CXX = cl.exe
	LD = link.exe

	reg_query = $(call filter_out2,$(subst $2,,$(shell reg query "$2" -v "$1" 2>nul)))
	fix_path = $(subst $(SPACE),\ ,$(subst \,/,$1))

	ProgramFiles86w := $(shell cmd //c "echo %PROGRAMFILES(x86)%")
	ProgramFiles86 := $(shell cygpath "$(ProgramFiles86w)")

	WindowsSdkDir ?= $(call reg_query,InstallationFolder,HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Microsoft SDKs\Windows\v10.0)
	WindowsSdkDir ?= $(call reg_query,InstallationFolder,HKEY_CURRENT_USER\SOFTWARE\Wow6432Node\Microsoft\Microsoft SDKs\Windows\v10.0)
	WindowsSdkDir ?= $(call reg_query,InstallationFolder,HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v10.0)
	WindowsSdkDir ?= $(call reg_query,InstallationFolder,HKEY_CURRENT_USER\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v10.0)
	WindowsSdkDir := $(WindowsSdkDir)

	WindowsSDKVersion ?= $(firstword $(foreach folder,$(subst $(subst \,/,$(WindowsSdkDir)Include/),,$(wildcard $(call fix_path,$(WindowsSdkDir)Include\*))),$(if $(wildcard $(call fix_path,$(WindowsSdkDir)Include/$(folder)/um/Windows.h)),$(folder),)))$(BACKSLASH)
	WindowsSDKVersion := $(WindowsSDKVersion)

	VsInstallBuildTools = $(ProgramFiles86)/Microsoft Visual Studio/2017/BuildTools
	VsInstallEnterprise = $(ProgramFiles86)/Microsoft Visual Studio/2017/Enterprise
	VsInstallProfessional = $(ProgramFiles86)/Microsoft Visual Studio/2017/Professional
	VsInstallCommunity = $(ProgramFiles86)/Microsoft Visual Studio/2017/Community

	VsInstallRoot ?= $(shell if [ -d "$(VsInstallBuildTools)" ]; then echo "$(VsInstallBuildTools)"; fi)
	ifeq ($(VsInstallRoot), )
		VsInstallRoot = $(shell if [ -d "$(VsInstallEnterprise)" ]; then echo "$(VsInstallEnterprise)"; fi)
	endif
	ifeq ($(VsInstallRoot), )
		VsInstallRoot = $(shell if [ -d "$(VsInstallProfessional)" ]; then echo "$(VsInstallProfessional)"; fi)
	endif
	ifeq ($(VsInstallRoot), )
		VsInstallRoot = $(shell if [ -d "$(VsInstallCommunity)" ]; then echo "$(VsInstallCommunity)"; fi)
	endif
	VsInstallRoot := $(VsInstallRoot)

	VcCompilerToolsVer := $(shell cat "$(VsInstallRoot)/VC/Auxiliary/Build/Microsoft.VCToolsVersion.default.txt" | grep -o '[0-9\.]*')
	VcCompilerToolsDir := $(VsInstallRoot)/VC/Tools/MSVC/$(VcCompilerToolsVer)

	WindowsSDKSharedIncludeDir := $(shell cygpath -w "$(WindowsSdkDir)\Include\$(WindowsSDKVersion)\shared")
	WindowsSDKUCRTIncludeDir := $(shell cygpath -w "$(WindowsSdkDir)\Include\$(WindowsSDKVersion)\ucrt")
	WindowsSDKUMIncludeDir := $(shell cygpath -w "$(WindowsSdkDir)\Include\$(WindowsSDKVersion)\um")
	WindowsSDKUCRTLibDir := $(shell cygpath -w "$(WindowsSdkDir)\Lib\$(WindowsSDKVersion)\ucrt\$(TargetArchMoniker)")
	WindowsSDKUMLibDir := $(shell cygpath -w "$(WindowsSdkDir)\Lib\$(WindowsSDKVersion)\um\$(TargetArchMoniker)")

	# For some reason the HostX86 compiler doesn't like compiling for x64
	# ("no such file" opening a shared library), and vice-versa.
	# Work around it for now by using the strictly x86 compiler for x86, and x64 for x64.
	# NOTE: What about ARM?
	ifneq (,$(findstring x64,$(TargetArchMoniker)))
		VCCompilerToolsBinDir := $(VcCompilerToolsDir)\bin\HostX64
	else
		VCCompilerToolsBinDir := $(VcCompilerToolsDir)\bin\HostX86
	endif

	PATH := $(shell IFS=$$'\n'; cygpath "$(VCCompilerToolsBinDir)/$(TargetArchMoniker)"):$(PATH)
	PATH := $(PATH):$(shell IFS=$$'\n'; cygpath "$(VsInstallRoot)/Common7/IDE")
	INCLUDE := $(shell IFS=$$'\n'; cygpath -w "$(VcCompilerToolsDir)/include")
	LIB := $(shell IFS=$$'\n'; cygpath -w "$(VcCompilerToolsDir)/lib/$(TargetArchMoniker)")
	ifneq (,$(findstring uwp,$(PlatformSuffix)))
		LIB := $(shell IFS=$$'\n'; cygpath -w "$(LIB)/store")
	endif

	export INCLUDE := $(INCLUDE);$(WindowsSDKSharedIncludeDir);$(WindowsSDKUCRTIncludeDir);$(WindowsSDKUMIncludeDir)
	export LIB := $(LIB);$(WindowsSDKUCRTLibDir);$(WindowsSDKUMLibDir)
	TARGET := $(TARGET_NAME)_libretro.dll
	PSS_STYLE :=2
	LDFLAGS += -DLL

# Windows
else
	TARGET := $(TARGET_NAME)_libretro.dll
	CC ?= gcc
	fpic := -fPIC
	SHARED := -shared -static-libgcc -static-libstdc++
	CFLAGS += -D__WIN32__ -D__WIN32_LIBRETRO__

endif

CFLAGS += -DNO_ZLIB -D__LIBRETRO__

ifeq ($(USE_LIBRETRO_VFS),1)
	NO_MMAP = 1
	CFLAGS += -DUSE_LIBRETRO_VFS
endif

ifeq ($(NO_MMAP),1)
	CFLAGS += -DNO_MMAP
endif

ifeq ($(NO_ARM_ASM),1)
use_cyclone = 0
use_fame = 1
use_drz80 = 0
use_cz80 = 1
use_svpdrc = 0

asm_memory = 0
asm_render = 0
asm_ym2612 = 0
asm_misc = 0
asm_cdmemory = 0
asm_mix = 0
asm_32xdraw = 0
asm_32xmemory = 0
endif

ifeq ($(APPLE),1)
# turn off DRCs on Apple OSes. It needs signing and notarizing on the
# later versions, which picodrive isn't supporting right now.
use_sh2drc = 0
use_svpdrc = 0
endif

CFLAGS += $(fpic)

ifeq ($(findstring Haiku,$(shell uname -a)),)
	LDLIBS += $(LIBM)
endif

SHARED ?= -shared
LDFLAGS += $(SHARED) $(fpic)

ifeq ($(ARCH),)
ARCH = $(shell $(CC) -dumpmachine | awk -F '-' '{print $$1}')
endif
PLATFORM = libretro
NO_CONFIG_MAK = yes

OBJOUT   = -o
LINKOUT  = -o 

ifneq (,$(findstring msvc,$(platform)))
	CFLAGS += -wd4702 -wd4711 -wd4202 -wd4101
endif

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 += -O3 -DNDEBUG
		CXXFLAGS += -O3 -DNDEBUG
	endif
endif

ifneq (,$(findstring msvc,$(platform)))
	OBJOUT = -Fo
	LINKOUT = -out:
ifeq ($(STATIC_LINKING),1)
	LD ?= lib.exe
	STATIC_LINKING=0
else
	LD = link.exe
endif
else
	LD = $(CC)
endif

include Makefile