#-----------------------------------------------------------------------------#
# Copyright (C) 1997-1999 The University of Melbourne.
# This file may only be copied under the terms of the GNU General
# Public License - see the file COPYING in the Mercury distribution.
#-----------------------------------------------------------------------------#

# library/Mmake - this is the main part of the Makefile
# for building the Mercury libraries.

MERCURY_DIR=..
include $(MERCURY_DIR)/Mmake.common

MAIN_TARGET=mercury

VPATH=.

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

# If we're going to generate both `.o' files and `.pic_o' files, then
# don't remove the intermediate `.c' files.
RM_C	=	$(LIBRARY_RM_C)

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

# Specify which options to use to compile the library.
# Don't change these without good reason - if you want to
# do a temporary change, change ../Mmake.params.

ifeq ($(LIBRARY_INTERMODULE),yes)

INTERMODULE_OPTS = --transitive-intermodule-optimization
ENABLE_TERM_OPTS = --enable-termination
CHECK_TERM_OPTS =
# If you want to actually check termination for the library, then you need
#	CHECK_TERM_OPTS = --check-termination
# but that is not enabled by default because it probably just results in
# spurious warnings.

else

INTERMODULE_OPTS =
ENABLE_TERM_OPTS =
CHECK_TERM_OPTS =

endif

M_ENV	=	MERCURY_INT_DIR=. \
		MERCURY_ALL_C_INCL_DIRS="\
			-I$(TRACE_DIR) \
			-I$(RUNTIME_DIR) \
			-I$(BOEHM_GC_DIR) \
			-I$(BOEHM_GC_DIR)/include \
		"
MCD	=	$(M_ENV) $(MC) --generate-dependencies $(INTERMODULE_OPTS)
MCI	=	$(M_ENV) $(MC) --make-interface $(INTERMODULE_OPTS) \
			$(ENABLE_TERM_OPTS)
MCPI	=	$(M_ENV) $(MC) --make-private-interface $(INTERMODULE_OPTS) \
			$(ENABLE_TERM_OPTS)
MCSI	=	$(M_ENV) $(MC) --make-short-interface $(INTERMODULE_OPTS) \
			$(ENABLE_TERM_OPTS)
MCOI	=	$(M_ENV) $(MC) --make-opt-int $(INTERMODULE_OPTS) \
			$(ENABLE_TERM_OPTS)
MCTOI	=	$(M_ENV) $(MC) --make-trans-opt $(INTERMODULE_OPTS) \
			$(ENABLE_TERM_OPTS)
MCG	=	$(M_ENV) $(MC) --compile-to-c $(INTERMODULE_OPTS) \
			$(CHECK_TERM_OPTS)
MCS	=	$(M_ENV) $(MC) --split-c-files -c --cflags "$(ALL_CFLAGS)" \
			$(INTERMODULE_OPTS) $(CHECK_TERM_OPTS)
MGNUC	=	$(M_ENV) $(SCRIPTS_DIR)/mgnuc
MGNUCFLAGS =	$(DLL_CFLAGS)
LDFLAGS	=	-L$(BOEHM_GC_DIR) -L$(RUNTIME_DIR)
ALL_LDFLAGS =	$(LDFLAGS) $(EXTRA_LDFLAGS)
LDLIBS	=	-l$(RT_LIB_NAME) \
		` case "$(GRADE)" in 					\
		    *.gc*.prof*) echo "-lgc_prof" ;;			\
		    *.gc*)	 echo "-lgc" ;;				\
		  esac							\
		`
ALL_LDLIBS =	$(LDLIBS) $(EXTRA_LDLIBS)

MTAGS	=	$(SCRIPTS_DIR)/mtags

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

# Stuff for Windows DLLS using gnu-win32

ifeq ($(USE_DLLS),yes)

DLL_CFLAGS = -Dlib$(STD_LIB_NAME)_DEFINE_DLL

include $(MERCURY_DIR)/Makefile.DLLs

else

DLL_CFLAGS =
DLL_DEF_LIB =

endif

# io.m uses library features that are supported by POSIX but which are not
# part of ANSI C, such as `struct stat', fileno(), and putenv().
# We need to pass --no-ansi to mgnuc to ensure that these are declared.
MGNUCFLAGS-io =	--no-ansi

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

# targets

.PHONY: all
all : mercury

.PHONY: mercury
mercury : all-ints lib_std

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

.PHONY: depend
depend		: library.depend

.PHONY: check
check		: library.check

.PHONY: all-ints 

ifeq ($(LIBRARY_INTERMODULE),yes)

all-ints: ints int3s opts trans_opts

else

all-ints: ints int3s

endif

.PHONY: ints 
ints		: library.ints

.PHONY: int3s 
int3s		: library.int3s

.PHONY: opts 
opts		: library.opts

.PHONY: trans_opts 
trans_opts		: library.trans_opts
library.trans_opts	: $(library.trans_opts)

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

tags		: $(MTAGS) $(library.ms)
	$(MTAGS) $(library.ms)

library.stats : $(COMPILER_DIR)/source_stats.awk $(library.ms)
	awk -f $(COMPILER_DIR)/source_stats.awk `vpath_find $(library.ms)` > $@
	
#-----------------------------------------------------------------------------#

.PHONY: dates
dates		:
	touch $(library.dates)

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

.PHONY: os cs
os: $(library.os)
cs: $(library.cs)

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

.PHONY: lib_std
# the following dependency is just there to improve compilation speed;
# making tree234.o first improves effective parallelism with parallel makes.
lib_std: $(os_subdir)tree234.o
lib_std: lib$(STD_LIB_NAME).a lib$(STD_LIB_NAME).$(EXT_FOR_SHARED_LIB)
lib_std: $(STD_LIB_NAME).init

lib$(STD_LIB_NAME)$(DLL_DEF_LIB).a : $(library.os)
	rm -f lib$(STD_LIB_NAME)$(DLL_DEF_LIB).a
	ar cr lib$(STD_LIB_NAME)$(DLL_DEF_LIB).a $(library.os)
	$(RANLIB) lib$(STD_LIB_NAME)$(DLL_DEF_LIB).a

RPATH_1=$(SHLIB_RPATH_OPT)$(FINAL_INSTALL_MERC_LIB_DIR)
RPATH_2=$(SHLIB_RPATH_SEP)$(FINAL_INSTALL_MERC_GC_LIB_DIR)

lib$(STD_LIB_NAME).so : $(library.pic_os)
	$(LINK_SHARED_OBJ) -o lib$(STD_LIB_NAME).so $(library.pic_os)	\
		$(RPATH_1)$(RPATH_2)					\
		$(ALL_LDFLAGS) $(ALL_LDLIBS)				\
		$(SHARED_LIBS)

$(STD_LIB_NAME).init: $(deps_subdir)library.dep
	for file in $(library.ms); do \
		grep '^INIT ' $$file; \
		echo "INIT mercury__`basename $$file .m`__init"; \
	done > $(STD_LIB_NAME).init

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

# Ensure we recompile library__version if VERSION is changed.
$(os_subdir)library.o \
$(os_subdir)library.pic_o \
	: $(RUNTIME_DIR)/mercury_conf.h

# The object files in this directory depend on many of the header files
# in the runtime. However, changes to many of these header files require
# a global make clean. Here we list only the header files from the runtime
# whose changes don't usually require a make clean but which nevertheless
# require some files in the library to be recompiled.
$(os_subdir)benchmarking.o \
$(os_subdir)benchmarking.pic_o \
$(os_subdir)std_util.o \
$(os_subdir)std_util.pic_o \
	: ../runtime/mercury_stack_layout.h

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

realclean:
	rm -f lib$(STD_LIB_NAME).a lib$(STD_LIB_NAME).so $(STD_LIB_NAME).init
	rm -f tags

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

ifeq ($(LIBRARY_INTERMODULE),yes)

# Installation targets

# LIBRARY_INTERMODULE should be turned off only during development.
# A full install requires the library's .opt and .trans_opt files.

# If you add a new target below, please add a parallel target for the
# case LIBRARY_INTERMODULE != yes.

.PHONY: install
install: install_mercury

.PHONY: install_all
install_all: install_mercury

.PHONY: install_mercury
install_mercury: install_ints install_init install_library

.PHONY: install_dirs
install_dirs:
	#-[ -d $(INSTALL_INT_DIR) ] || mkdir -p $(INSTALL_INT_DIR)
	-[ -d $(INSTALL_INT_DIR)/Mercury ] || \
		mkdir -p $(INSTALL_INT_DIR)/Mercury
	-[ -d $(INSTALL_MODULE_DIR) ] || mkdir -p $(INSTALL_MODULE_DIR)
	-[ -d $(INSTALL_MERC_LIB_DIR) ] || mkdir -p $(INSTALL_MERC_LIB_DIR)

.PHONY: install_ints
install_ints: $(library.ints) $(library.int3s) \
		$(library.opts) $(library.trans_opts) install_dirs
	for file in $(library.ints) $(library.int3s) \
			$(library.opts) $(library.trans_opts); \
	do \
		target=$(INSTALL_INT_DIR)/`basename $$file`; \
		if cmp -s $$file $$target; then \
			echo "$$target unchanged"; \
		else \
			echo "installing $$target"; \
			cp $$file $$target; \
		fi; \
	done
	# The following is needed to support the `--use-subdirs' option
	for dir in ints int2s int3s opts trans_opts; do \
		rm -f $(INSTALL_INT_DIR)/Mercury/$$dir; \
		ln -s .. $(INSTALL_INT_DIR)/Mercury/$$dir; \
	done

.PHONY: install_init
install_init: $(STD_LIB_NAME).init install_dirs
	cp `vpath_find $(STD_LIB_NAME).init` $(INSTALL_MODULE_DIR)
	# "$(STD_LIB_NAME).init" used to be called "library.init" or
	# "libmercury.init". If there is still a version with an old name
	# lying around, then delete it; otherwise the initialization
	# would get done twice.
	rm -f $(INSTALL_MODULE_DIR)/library.init \
		$(INSTALL_MODULE_DIR)/libmercury.init

.PHONY: install_library
install_library: lib$(STD_LIB_NAME).a \
		lib$(STD_LIB_NAME).$(EXT_FOR_SHARED_LIB) install_dirs
	cp `vpath_find lib$(STD_LIB_NAME).a \
		lib$(STD_LIB_NAME).$(EXT_FOR_SHARED_LIB)` \
		$(INSTALL_MERC_LIB_DIR)

# library.split.a is a version of lib$(STD_LIB_NAME).a that has been compiled
# with `--split-c-files'.
.PHONY: install_split_library
install_split_library: library.split.a install_dirs
	cp `vpath_find library.split.a` \
		$(INSTALL_MERC_LIB_DIR)/lib$(STD_LIB_NAME).a

else

.PHONY: install
install:
	echo "Can't do make install without LIBRARY_INTERMODULE=yes"

.PHONY: install_all
install_all:
	echo "Can't do make install without LIBRARY_INTERMODULE=yes"

.PHONY: install_mercury
install_mercury:
	echo "Can't do make install without LIBRARY_INTERMODULE=yes"

.PHONY: install_ints
install_ints:
	echo "Can't do make install without LIBRARY_INTERMODULE=yes"

.PHONY: install_init
install_init:
	echo "Can't do make install without LIBRARY_INTERMODULE=yes"

.PHONY: install_library
install_library:
	echo "Can't do make install without LIBRARY_INTERMODULE=yes"

.PHONY: install_split_library
install_split_library:
	echo "Can't do make install without LIBRARY_INTERMODULE=yes"

endif

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