##############################################################################
## Source-level Makefile for jzintv
##
## Before editing this file, consider overriding details with .mak files
## in the buildcfg/ directory.  See buildcfg/README.txt for details.
##############################################################################

##############################################################################
## Project directory structure
##############################################################################
B = ../bin
L = ../lib
R = ../rom

##############################################################################
## Include local customizations, if any.
##############################################################################
-include buildcfg/*.mak

##############################################################################
## Project-wide build flags
##############################################################################

# Set our target architecture(s).  Since MacOS supports fat binaries, this
# can list multiple architectures.
ARCH ?= -arch x86_64

# Set "X" to be the executable extension, and "O" to be the object extension.
X =
O = o

# Set "RM" to be the remove/delete command, if not overridden.
RM ?= rm -f

# Set to 0 or comment out to disable GNU Readline support.
# Set to 1 to enable it.
# Note! It must really be GNU Readline, and not the Editline wrapper that
# comes with XCode. Edit RL_CFLAGS, RL_LFLAGS below to match where you've
# installed it.
GNU_READLINE ?= 1

# Changed to use SDL frameworks .-- Fri. Aug. 6 JJT
# Now SDL2 -- 28-OCT-2017 JZ
#
# The instructions for installing the SDL2 framework suggest that it be placed
# in your ~/Library/Frameworks directory. Override this variable if this is
# not the case.
SDL2_FRAMEWORK ?= /Library/Frameworks/SDL2.framework

# Flags for using the so-called "portable syntax" for including SDL2 headers
# (such as #include "SDL.h")
SDL2_PORT_SYN_FLAGS := -I$(SDL2_FRAMEWORK)/Headers/

# Note: -F$(SDL2_FRAMEWORK)/.. ensures that gcc can find the SDL2 framework even
# if SDL2_FRAMEWORK had to be overrriden.  See above.
#
# TODO:  Eliminate -DUSE_SDL=2, at least in this form.
SDL2_CFLAGS := -DUSE_SDL=2 $(SDL2_PORT_SYN_FLAGS)
SDL2_LFLAGS := -F$(SDL2_FRAMEWORK)/.. -framework SDL2 \
               -framework AppKit -framework Foundation -lobjc

SDL2_CFLAGS += $(SDL2_CFLAGS_EXTRA)
SDL2_LFLAGS += $(SDL2_LFLAGS_EXTRA)

# Override these in a .mak file.  See buildcfg/00-compiler*.txt for examples.
LTO ?= -flto
ifeq ($(CC),cc)
    CC = clang -std=gnu99
endif
ifeq ($(CXX),c++)
    CXX = clang++ -std=gnu++14
    CXXFLAGS += -fvisibility=hidden
endif

# This is used only to compile gfx/gfx_sdl2_osx.m.
CC_MFILE ?= clang $(ARCH)

# This must be 10.9 or higher with current XCode / Clang 11.
# This number can go as low as to 10.6 with GCC.
MACOS_VERSION_MIN ?= 10.9

# Default optimization flags, if none specified in a buildcfg/*.mak file.
OPT_FLAGS ?= -O3

CFLAGS   += $(ARCH) -mmacosx-version-min=$(MACOS_VERSION_MIN)
CFLAGS   += -I. -I.. $(EXTRA)

CXXFLAGS += $(ARCH) -mmacosx-version-min=$(MACOS_VERSION_MIN)
CXXFLAGS += -I. -I.. $(EXTRA)

LFLAGS   += -L/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib

OBJS       = jzintv.$(O)
PROG_SDL2  = $(B)/jzintv$(X)
PROG_NULL  = $(B)/jzintv_batch$(X)
TOCLEAN   += $(PROG_SDL2) $(PROG_NULL) core
TOCLEAN   += libjzintv_common.a libjzintv_sdl2.a libjzintv_null.a
TOCLEAN   += jzintv_fromcommon$(X)
OBJS_SDL2 += pads/pads_cgc_linux.$(O)

CFLAGS   += $(SDL2_CFLAGS)
CXXFLAGS += $(SDL2_CFLAGS)

# Forcibly override static linkage, which is not supported on Mac.
SLFLAGS = $(LFLAGS)

# CFLAGS_MFILE is a more limited CFLAGS set for building the .m file.
# It omits the sanitizer, optimizer and LTO flags.
CFLAGS_MFILE := $(CFLAGS) $(WARN_M)

# Add sanitizer and LTO flags to main CFLAGS / CXXFLAGS.
CFLAGS   += $(SANI) $(LTO) $(OPT_FLAGS) $(WARN)
CXXFLAGS += $(SANI) $(LTO) $(OPT_FLAGS) $(WARNXX)

ifeq ($(GNU_READLINE),1)
# Assuming you've built Readline yourself, point to the right header dir
# and library to explicitly link.
RL_CFLAGS = -DUSE_GNU_READLINE -I/usr/local/include
RL_LFLAGS = /usr/local/lib/libreadline.a -ltermcap
endif

##############################################################################
## Generic build-rules
##############################################################################

all: build

##############################################################################
## Makefile.common includes all the subMakefiles and such
##############################################################################
include Makefile.common

$(PROG_SDL2): $(OBJS) $(OBJS_SDL2) gfx/gfx_sdl2_osx.$(O)
	$(CXX) -o $(PROG_SDL2) $(OBJS) $(OBJS_SDL2) gfx/gfx_sdl2_osx.$(O) $(CFLAGS) $(LFLAGS) $(SDL2_LFLAGS) $(RL_LFLAGS)

$(PROG_NULL): $(OBJS) $(OBJS_NULL)
	$(CXX) -o $(PROG_NULL) $(OBJS) $(OBJS_NULL) $(CFLAGS) $(LFLAGS) $(RL_LFLAGS)

#Library for use with the OS X GUI project.
libjzintv_common.a : $(OBJS)
	libtool -o libjzintv_common.a $(OBJS)

libjzintv_sdl2.a : $(OBJS_SDL2)
	libtool -o libjzintv_sdl2.a $(OBJS_SDL2)

libjzintv_null.a : $(OBJS_NULL)
	libtool -o libjzintv_null.a $(OBJS_NULL)

#Test program for libjzintv_common.a . If everything is OK, this program should
#behave exactly like jzintv.
jzintv_fromcommon : libjzintv_common.a libjzintv_sdl2.a
	$(CC) -o jzintv_fromcommon $(CFLAGS) $(LFLAGS) $(SDL2_LFLAGS) -L. -ljzintv_common -ljzintv_sdl

clean:
	$(RM) $(OBJS)
	$(RM) $(OBJS_SDL2)
	$(RM) $(OBJS_NULL)
	$(RM) $(TOCLEAN)

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

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

gfx/gfx_sdl2_osx.$(O): gfx/gfx_sdl2_osx.m gfx/gfx_sdl2_hooks.h
	$(CC_MFILE) -o $@ $(CFLAGS_MFILE) -fno-objc-arc -c $<

build: jzIntv SDK-1600