#
# Name:    Makehead.macosx-clang
#
# Purpose: This file is used to customize operating system and installation
#          dependent features of the Mp makefiles.  This version is
#          customized for MacOS X running on an x86_64 Macintosh using Clang.
#
#          Please note that modules dynamically loaded via the dlopen()
#          style API from Linux, Solaris, etc. must be compiled and linked
#          as Mach-O bundles rather than dylib shared libraries.  Thus,
#          the fact that I am creating bundles below is _not_ a mistake.
#

#MX_PYTHON = 2.7

ifndef MX_PYTHON
    MX_PYTHON = $(shell python3 -V 2>&1 | cut -f2 -d' ' | cut -f1-2 -d'.')
endif

$(info Python is [${MX_PYTHON}])

PYTHON_MAJOR = $(shell echo ${MX_PYTHON} | cut -f1 -d'.')

#$(info PYTHON_MAJOR is [${PYTHON_MAJOR}])

#====

ifndef MACOS_MACHINE_TYPE
    MACOS_MACHINE_TYPE = $(shell uname -m)
endif

$(info MACOS_MACHINE_TYPE is [${MACOS_MACHINE_TYPE}])

#====

ifeq ($(MACOS_MACHINE_TYPE),arm64)
    PYTHON_FRAMEWORK_DIR = /Library/Frameworks/Python.framework

else ifeq ($(PYTHON_MAJOR),3)
    PYTHON_FRAMEWORK_DIR = /System/Volumes/Data/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework

else
    PYTHON_FRAMEWORK_DIR = /System/Library/Frameworks/Python.framework
endif

$(info PYTHON_FRAMEWORK_DIR is [${PYTHON_FRAMEWORK_DIR}])

#====

PYTHON_DIR = $(PYTHON_FRAMEWORK_DIR)/Versions/$(MX_PYTHON)

$(info PYTHON_DIR is [${PYTHON_DIR}])

PYTHON_INCLUDES = -I$(PYTHON_DIR)/include/python$(MX_PYTHON)

#
#    !!!!!!!!!! WARNING !!!!!!!!!! 
#
# For macOS Catalina and later, it is not possible to build the Mp*.pyc
# modules until _after_ libMp.dylib and MpPrivate.so have been installed.
# So we must move the build of MpNum.pyc to the 'make install' step.
#

# Do NOT give any arguments to OPTIONAL_MODULES for the macosx-clang target!

OPTIONAL_MODULES = 

#
#=========================================================================
#
# Generally, you should not have to modify anything after this point.
#

ifeq ($(PYTHON_MAJOR),2)
	PYTHON = python
else
	PYTHON = python$(PYTHON_MAJOR)
endif

$(info PYTHON is [${PYTHON}])

#----

PYTHON_BIN = $(shell which ${PYTHON})

$(info PYTHON_BIN is [${PYTHON_BIN}])

#----

MP_BUILD_PYC = $(PYTHON) MpBuildPyc.pyx

CC = clang

CFLAGS = -g -O -fPIC -fno-common $(GCCFLAGS) $(INCLUDES) $(PYTHON_INCLUDES)\
			-DOS_MACOSX $(EXTRA_FLAGS) -DDEBUG

MAKEDEPEND = $(CC) -MM $(CFLAGS) mp_*.c > Makefile.depend

MAKEDEPEND_CLEAN = rm Makefile.depend

#---------------------------------------------------------------------

LIBMP_OBJS = $(LIBMP_SRCS:.c=.$(OBJ))

LIBMP_NAME = libMp.dylib

LIBMP_BUILD_NAME   = $(PWD)/$(LIBMP_NAME)
LIBMP_INSTALL_NAME = $(MX_INSTALL_DIR)/lib/$(LIBMP_NAME)

LIBMP_STATIC_NAME = libMp.a

LIBMP_DELETE = rm $(LIBMP_NAME) $(LIBMP_STATIC_NAME)

#---

$(LIBMP_NAME): $(LIBMP_OBJS)
	-$(LIBMP_DELETE)
	$(CC) -dynamiclib -o $(LIBMP_NAME) $(LIBMP_OBJS) $(MP_LIBRARIES) \
		-undefined suppress -flat_namespace
	install_name_tool -change libMx.dylib \
			$(MX_INSTALL_DIR)/lib/libMx.dylib \
			$(LIBMP_NAME)
	ar rcs $(LIBMP_STATIC_NAME) $(LIBMP_OBJS)
	ranlib $(LIBMP_STATIC_NAME)

#---------------------------------------------------------------------

#
#    !!!!!!!!!! WARNING !!!!!!!!!! 
#
# For macOS Catalina and later, it is not possible to build the Mp*.pyc
# modules until _after_ libMp.dylib and MpPrivate.so have been installed.
# So we must move the build of the pyc files to the 'make install' step.
#

MP_PYTHON_MODULES = 

#---------------------------------------------------------------------

MP_MODULE_NAME = MpPrivate.so

MP_MODULE_OBJS = $(MP_MODULE_SRCS:.c=.$(OBJ))

#---------------------------------------------------------------------

MP_MODULE_DELETE = rm $(MP_MODULE_NAME)

$(MP_MODULE_NAME): $(MP_MODULE_OBJS) $(LIBMP_NAME)
	-$(MP_MODULE_DELETE)
	$(CC) -bundle -undefined suppress -flat_namespace \
		-o $(MP_MODULE_NAME) $(MP_MODULE_OBJS) \
			$(LIBMP_NAME) $(MP_LIBRARIES)
	install_name_tool -change libMp.dylib \
				`pwd`/libMp.dylib \
			-change libMx.dylib \
				$(MX_INSTALL_DIR)/lib/libMx.dylib \
			$(MP_MODULE_NAME)
	#
	echo "#! ${PYTHON_BIN}" > mpscript.temp
	tail -n +2 ../mpscript/mpscript >> mpscript.temp
	#
	echo "#! ${PYTHON_BIN}" > mpenv.temp
	tail -n +2 ../mpscript/mpenv >> mpenv.temp

#---------------------------------------------------------------------

INCLUDES         = -I$(LIBMXSRC)

MP_LIBRARIES     = -L$(LIBMXSRC) -lMx -lc

#---------------------------------------------------------------------

mp_install_main:
	-mkdir $(MX_INSTALL_DIR)/bin
	-mkdir $(MX_INSTALL_DIR)/lib
	-mkdir $(MX_INSTALL_DIR)/lib/mp
	/usr/bin/install -c -m 644 $(LIBMP_NAME) $(MX_INSTALL_DIR)/lib
	$(MX_INSTALL_DIR)/bin/mx_mac_fix_lib_path \
		$(MX_INSTALL_DIR)/lib/$(LIBMP_NAME) \
		$(MX_INSTALL_DIR)/lib/libMx.dylib
	/usr/bin/install -c -m 644 $(LIBMP_STATIC_NAME) $(MX_INSTALL_DIR)/lib
	/usr/bin/install -c -m 644 *.py $(MX_INSTALL_DIR)/lib/mp
	/usr/bin/install -c -m 644 MpPrivate.so $(MX_INSTALL_DIR)/lib/mp
	$(MX_INSTALL_DIR)/bin/mx_mac_fix_lib_path \
		$(MX_INSTALL_DIR)/lib/mp/$(MP_MODULE_NAME) \
		$(MX_INSTALL_DIR)/lib/libMp.dylib
	$(MX_INSTALL_DIR)/bin/mx_mac_fix_lib_path \
		$(MX_INSTALL_DIR)/lib/mp/$(MP_MODULE_NAME) \
		$(MX_INSTALL_DIR)/lib/libMx.dylib
	/usr/bin/install -c -m 755 ../mpscript/mpshell $(MX_INSTALL_DIR)/bin
	/usr/bin/install -c -m 755 mpscript.temp $(MX_INSTALL_DIR)/bin/mpscript
	/usr/bin/install -c -m 755 mpenv.temp $(MX_INSTALL_DIR)/bin/mpenv
	/usr/bin/install -c -m 755 ../net/mpnet $(MX_INSTALL_DIR)/bin
	( cd $(MX_INSTALL_DIR)/bin ; ln -sf mpnet mpget )
	( cd $(MX_INSTALL_DIR)/bin ; ln -sf mpnet mpput )
	( cd $(MX_INSTALL_DIR)/bin ; ln -sf mpnet mnget )
	( cd $(MX_INSTALL_DIR)/bin ; ln -sf mpnet mnput )

#     !!!!!!!!!! SPECIAL CASE !!!!!!!!!!
#
# The initial build of the *.pyc files for the macos-clang build target must be
# deferred until everything else has been installed.  The traditional build
# method for *.pyc files will trigger a Python ImportError for dlopen() that
# says this
#
#    "file system relative paths not allowed in hardened programs"
#
#

mp_install_pyc: Mp.pyc MpScan.pyc MpNum.pyc
	/usr/bin/install -c -m 644 *.pyc $(MX_INSTALL_DIR)/lib/mp

###mp_install: mp_install_main mp_install_pyc

mp_install: mp_install_main