#
# Name:    Makehead.linux-clang
#
# Purpose: This file is used to customize operating system and installation
#          dependent features of the Mp makefiles.  This version is
#          customized for the Clang compiler on Linux.
#

#MX_PYTHON = 2.7

ifndef MX_PYTHON
    MX_PYTHON = $(shell python -V 2>&1 | cut -f2 -d' ' | cut -c1-3)
endif

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

PYTHON_INCLUDES = -I/usr/include/python$(MX_PYTHON)
#PYTHON_INCLUDES = -I/usr/local/include/python$(MX_PYTHON)
#PYTHON_INCLUDES = -I/home/lavender/local/include/python$(MX_PYTHON)

PYTHON_LINK = $(shell python$(MX_PYTHON)-config --ldflags)

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

#
# The following optional modules import external Python modules that may not
# be available at all sites and for all operating systems.  Comment out any
# that will not build at your site.
#

# MpNum.py - Requires the 'numpy' module.

OPTIONAL_MODULES += MpNum.pyc

# Turn on Address Sanitizer
#
#SANITIZE = -fsanitize=address -fno-omit-frame-pointer
#SANITIZE_LINK = -lasan -lubsan
#CFLAGS += $(SANITIZE)

# Turn on optimization
#
#OPTIMIZE = -O2
#OPTIMIZE = -O3
#CFLAGS += $(OPTIMIZE)

#
# DEBUGGING SUPPORT
#
# If you want to use the debugging version of Python called "python-dbg",
# then you must set MP_DEBUG to 'true' below when you compile your
# code and also use python-dbg to build the pyc files.
#
# If you try to run a non-debug build of Mp with the debug version of
# Python, namely python-dbg, you will get an error message similar
# to this:
#
#   ImportError: /opt/mx/lib/mp/MpPrivate.so: undefined symbol: Py_InitModule4
#

MP_DEBUG = false

#---

MP_DEBUG_LIBRARY_PATH = /usr/lib/debug/usr/lib/libpython2.4.so.1.0

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

ifeq ($(PYTHON_MAJOR),2)
    ifeq ($(MP_DEBUG),true)
	PYTHON = python-dbg
    else
	PYTHON = python
    endif
else
    ifeq ($(MP_DEBUG),true)
	PYTHON = python$(PYTHON_MAJOR)-dbg
    else
	PYTHON = python$(PYTHON_MAJOR)
    endif
endif

ifeq ($(MP_DEBUG),true)
	MP_DEBUG_LIBRARY = $(MP_DEBUG_LIBRARY_PATH)
endif

MP_BUILD_PYC = $(PYTHON) MpBuildPyc.pyx

#
# The Python developers have chosen to always compile Python with the
# -Wno-strict-aliasing flag set.  If the MP code is compiled with
# strict-aliasing turned on, then at high optimization levels we can
# get GCC warnings about the mere use of Python objects like Py_True
# and Py_False.  This unfortunately means that we must set the
# -Wno-strict-aliasing flag for MP as well.
#

CFLAGS += -g -fPIC -Wno-strict-aliasing $(INCLUDES) $(PYTHON_INCLUDES)\
		-DOS_LINUX $(EXTRA_FLAGS) -DDEBUG

ifeq ($(MP_DEBUG),true)
	CFLAGS += -DPy_DEBUG
endif

#

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

MAKEDEPEND_CLEAN = rm Makefile.depend

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

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

LIBMP_SONAME = libMp.so.$(MX_MAJOR_VERSION)

LIBMP_NAME = $(LIBMP_SONAME).$(MX_MINOR_VERSION).$(MX_UPDATE_VERSION)

LIBMP_STATIC_NAME = libMp.a

LIBMP_DELETE = rm $(LIBMP_NAME) $(LIBMP_SONAME) libMp.so $(LIBMP_STATIC_NAME)

#---

$(LIBMP_NAME): $(LIBMP_OBJS)
	-$(LIBMP_DELETE)
	$(CC) $(SANITIZE) -shared -Wl,-soname,$(LIBMP_SONAME) \
		-o $(LIBMP_NAME) $(LIBMP_OBJS) $(PYTHON_LINK) $(SANITIZE_LINK)
	ln -sf $(LIBMP_NAME) $(LIBMP_SONAME)
	ln -sf $(LIBMP_NAME) libMp.so
	ar rcs $(LIBMP_STATIC_NAME) $(LIBMP_OBJS)
	ranlib $(LIBMP_STATIC_NAME)

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

MP_PYTHON_MODULES = Mp.pyc MpScan.pyc

MP_MODULE_NAME = MpPrivate.so

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

MP_MODULE_DELETE = rm $(MP_MODULE_NAME)

#---

$(MP_MODULE_NAME): $(MP_MODULE_OBJS)
	-$(MP_MODULE_DELETE)
	$(CC) $(SANITIZE) -g -shared \
			-o $(MP_MODULE_NAME) $(MP_DEBUG_LIBRARY) \
			$(MP_MODULE_DIRS) $(MP_MODULE_OBJS) \
			$(MP_LIBRARIES) -lc $(SANITIZE_LINK)

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

MPMTR_MODULE_NAME = MpMtr.so

MPMTR_MODULE_DELETE = rm $(MPMTR_MODULE_NAME)

#---

$(MPMTR_MODULE_NAME): MpMtr.$(OBJ)
	-$(MPMTR_MODULE_DELETE)
	$(CC) $(SANITIZE) -g -shared \
			-o $(MPMTR_MODULE_NAME) $(MP_DEBUG_LIBRARY) \
			$(MP_MODULE_DIRS) MpMtr.$(OBJ) \
			$(MP_LIBRARIES) -lc $(SANITIZE_LINK)

MpMtr.$(OBJ): MpMtr.c
	$(CC) $(CFLAGS) -c MpMtr.c

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

INCLUDES         = -I$(LIBMXSRC)

MP_MODULE_DIRS   = -L$(LIBMXSRC) -L. $(LIB_DIRS)
MP_LIBRARIES     = -lMp -lMx $(LIBRARIES)

ifeq ($(MP_DEBUG),true)
	MP_MODULE_DIRS += $(MP_DEBUG_LIBRARY_DIR)
endif

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

mp_install:
	-mkdir $(MX_INSTALL_DIR)/bin
	-mkdir $(MX_INSTALL_DIR)/lib
	-mkdir $(MX_INSTALL_DIR)/lib/mp
	install -m 644 $(LIBMP_NAME) $(MX_INSTALL_DIR)/lib
	( cd $(MX_INSTALL_DIR)/lib ; ln -sf $(LIBMP_NAME) $(LIBMP_SONAME) )
	( cd $(MX_INSTALL_DIR)/lib ; ln -sf $(LIBMP_NAME) libMp.so )
	install -m 644 $(LIBMP_STATIC_NAME) $(MX_INSTALL_DIR)/lib
	install -m 644 *.py $(MX_INSTALL_DIR)/lib/mp
	install -m 644 *.pyc $(MX_INSTALL_DIR)/lib/mp
	install -m 644 MpPrivate.so $(MX_INSTALL_DIR)/lib/mp
	install -m 644 MpMtr.so $(MX_INSTALL_DIR)/lib/mp
	install -m 755 ../mpscript/mpscript $(MX_INSTALL_DIR)/bin
	install -m 755 ../mpscript/mpshell $(MX_INSTALL_DIR)/bin
	install -m 755 ../mpscript/mpenv $(MX_INSTALL_DIR)/bin