#-----------------------------------------------------------------------------#
# vim: ts=8 sw=8 noexpandtab ft=make
#-----------------------------------------------------------------------------#
# Copyright (C) 2002-2008, 2010, 2012 The University of Melbourne.
# This file may only be copied under the terms of the GNU General
# Public Licence - see the file COPYING in the Mercury distribution.
#-----------------------------------------------------------------------------#
# Mmake.workspace - build a program or library using the current workspace,
# not an installed library.
#
# The variable WORKSPACE must be set externally.
#
# If the variable LINK_STATIC is set to `yes', the names of the `.a' files
# for the Mercury libraries will be included in MLLIBS, otherwise
# `-l' options will be included.
#
# By default, if LINK_STATIC is unset or set to `no', `-R' options
# will be passed to ml for each of the directories containing the
# Mercury libraries. If SET_RPATH is set to `no', these options will
# not be passed. This is useful for building the Mercury libraries,
# for which the rpath must be set in each Mmakefile to point to
# the installed library directory.
#
# Setting LINK_BOEHM_GC_ONLY to `yes' causes only the boehm_gc directory
# to be included in MLFLAGS, MLLIBS and CFLAGS.

# Setting LINK_RUNTIME_ONLY to `yes' causes only the *_gc and runtime
# directories to be included in MLFLAGS, MLLIBS and CFLAGS.

# Setting LINK_STDLIB_ONLY to `yes' causes only the *_gc, runtime
# and library directories to be included in MLFLAGS, MLLIBS and CFLAGS.

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

# CROSS_COMPILING is always set in Mmake.common, but
#
# - the Mmakefiles of the test suite include this file but do not include
#   Mmake.common, which leaves CROSS_COMPILING undefined for them; and
#
# - we do not support cross-compilation in the test suite anyway.
ifeq ($(origin CROSS_COMPILING),undefined)
CROSS_COMPILING = no
endif

ifeq ($(origin LINK_STATIC),undefined)
LINK_STATIC = no
endif
ifeq ($(origin SET_RPATH),undefined)
SET_RPATH = yes
endif
ifeq ($(origin LINK_BOEHM_GC_ONLY),undefined)
LINK_BOEHM_GC_ONLY = no
endif
ifeq ($(origin LINK_RUNTIME_ONLY),undefined)
LINK_RUNTIME_ONLY = no
endif
ifeq ($(origin LINK_STDLIB_ONLY),undefined)
LINK_STDLIB_ONLY = no
endif
ifeq ($(origin EXTRA_MTAGSFLAGS),undefined)
EXTRA_MTAGSFLAGS =
endif

SCRIPTS_DIR	= $(WORKSPACE)/scripts
RUNTIME_DIR	= $(WORKSPACE)/runtime
LIBRARY_DIR	= $(WORKSPACE)/library
TRACE_DIR	= $(WORKSPACE)/trace
SSDB_DIR	= $(WORKSPACE)/ssdb
MDBCOMP_DIR	= $(WORKSPACE)/mdbcomp
BROWSER_DIR	= $(WORKSPACE)/browser
BOEHM_GC_DIR	= $(WORKSPACE)/boehm_gc
COMPILER_DIR	= $(WORKSPACE)/compiler
UTIL_DIR	= $(WORKSPACE)/util
ROBDD_DIR	= $(WORKSPACE)/robdd

# The names of the various libraries.
# The archives and shared object objects have a "lib" prefix and a ".a" or
# ".so" (or ".dll") suffix around these names; the initialization files
# have just a ".init" suffix. (The trace library does not have a .init file,
# since it contains no Mercury code.)
#
# If you change these, you will also need to change the files indicated
# in scripts/c2init.in.
RT_LIB_NAME		= mer_rt
STD_LIB_NAME		= mer_std
TRACE_LIB_NAME		= mer_trace
EVENTSPEC_LIB_NAME	= mer_eventspec
SSDB_LIB_NAME		= mer_ssdb
BROWSER_LIB_NAME	= mer_browser
MDBCOMP_LIB_NAME	= mer_mdbcomp

# This specifies the path to the so_locations file (or its equivalent),
# which is used by the linker to help it to map different shared objects
# to different virtual memory addresses at static link time, so as to avoid
# the need to relocate them at dynamic link time.
SO_LOCATIONS_DIR        = $(WORKSPACE)/
export SO_LOCATIONS_DIR

MC =		$(SCRIPTS_DIR)/mmc
MGNUC =		$(SCRIPTS_DIR)/mgnuc
ML =		$(SCRIPTS_DIR)/ml

# We cannot use the binaries in util when cross-compiling.
# Just assume that the default c2init and mkinit are usable.
ifneq ($(CROSS_COMPILING),yes)
C2INIT =	MERCURY_MKINIT=$(UTIL_DIR)/mkinit $(SCRIPTS_DIR)/c2init
MKLIBINIT =	$(UTIL_DIR)/mkinit -k
endif

MTAGS =		$(SCRIPTS_DIR)/mtags
MTAGSFLAGS +=	$(EXTRA_MTAGSFLAGS)

VPATH =		$(LIBRARY_DIR)

ifeq ($(origin MERCURY_CONFIG_FILE),undefined)
MERCURY_CONFIG_FILE = $(SCRIPTS_DIR)/Mercury.config.bootstrap
CONFIG_OVERRIDE =
else
CONFIG_OVERRIDE = --config-file $(MERCURY_CONFIG_FILE)
endif

ifeq ($(MMAKE_USE_MMC_MAKE),yes)
MCFLAGS      += --options-file $(WORKSPACE)/Mercury.options
endif

# This is now in FLAGS files.
# MCFLAGS    += -I$(LIBRARY_DIR)
# This is now in .mgnuc_opt files.
# MGNUCFLAGS += --no-mercury-stdlib-dir

# XXX browser.init and mdbcomp.init might need to be included even if tracing
# is disabled if ssdb uses code from the browser or mdbcomp libraries
C2INITFLAGS  += --trace-init-file $(BROWSER_DIR)/$(BROWSER_LIB_NAME).init \
		--trace-init-file $(MDBCOMP_DIR)/$(MDBCOMP_LIB_NAME).init \
		--ssdb-init-file $(SSDB_DIR)/$(SSDB_LIB_NAME).init
C2INITARGS   += $(LIBRARY_DIR)/$(STD_LIB_NAME).init \
		$(RUNTIME_DIR)/$(RT_LIB_NAME).init
MLFLAGS      += --no-mercury-stdlib-dir

# The following are now in .mgnuc_copts files:
#
# # Work out the C include directories.
#
# C_INCL_DIRS   = -I$(BOEHM_GC_DIR) -I$(BOEHM_GC_DIR)/include
# ifneq ($(LINK_BOEHM_GC_ONLY),yes)
# C_INCL_DIRS  += -I$(RUNTIME_DIR)
# ifneq ($(LINK_RUNTIME_ONLY),yes)
# C_INCL_DIRS  += -I$(LIBRARY_DIR) -I$(LIBRARY_DIR)/$(mihs_subdir)
# ifneq ($(LINK_STDLIB_ONLY),yes)
# C_INCL_DIRS  += -I$(MDBCOMP_DIR) -I$(MDBCOMP_DIR)/$(mihs_subdir) \
# 		-I$(BROWSER_DIR) -I$(BROWSER_DIR)/$(mihs_subdir) -I$(TRACE_DIR)
# endif
# endif
# endif
# CFLAGS       += $(C_INCL_DIRS)

# This is now in FLAGS files.
# MCFLAGS    += $(C_INCL_DIRS:-I%=--c-include-directory %)

# Work out which libraries to link with.
# The $(shell) here is needed to allow the variable values in
# ECHO_MERCURY_OPTIONS in Mmake.vars to be single-quoted when passed
# to echo in order to preserve double-quotes (e.g. for file names
# containing spaces).
GC_LIBS_0=`$(ML) --grade $(GRADE) --print-gc-grade`
GC_LIBS=$(shell echo $(GC_LIBS_0))

STATIC_GC_LIBS_0 = 						\
	`							\
	    case $(GRADE) in					\
	    	*.gc*)		echo $(BOEHM_GC_DIR)/lib$(GC_LIBS).$A	;; \
	    esac						\
	`
STATIC_GC_LIBS = $(shell echo $(STATIC_GC_LIBS_0))

SHARED_GC_LIBS_0 =						\
	 `							\
	    case $(GRADE) in					\
		*.gc*)		echo -l$(GC_LIBS) ;;		\
	    esac						\
	`
SHARED_GC_LIBS = $(shell echo $(SHARED_GC_LIBS_0))


ifeq ($(LINK_STATIC),yes)

STATIC_RT_LIBS=
STATIC_STD_LIBS=
STATIC_TRACE_LIBS=
ifneq ($(LINK_BOEHM_GC_ONLY),yes)
STATIC_RT_LIBS = $(RUNTIME_DIR)/lib$(RT_LIB_NAME).$A
ifneq ($(LINK_RUNTIME_ONLY),yes)
STATIC_STD_LIBS = $(LIBRARY_DIR)/lib$(STD_LIB_NAME).$A
ifneq ($(LINK_STDLIB_ONLY),yes)
STATIC_TRACE_LIBS = \
		$(TRACE_DIR)/lib$(TRACE_LIB_NAME).$A \
		$(TRACE_DIR)/lib$(EVENTSPEC_LIB_NAME).$A \
		$(SSDB_DIR)/lib$(SSDB_LIB_NAME).$A \
		$(BROWSER_DIR)/lib$(BROWSER_LIB_NAME).$A \
		$(MDBCOMP_DIR)/lib$(MDBCOMP_LIB_NAME).$A
endif
endif
endif

ifeq ("$(filter csharp% java%,$(GRADE))","")
MLOBJS += \
		$(STATIC_TRACE_LIBS) \
		$(STATIC_STD_LIBS) \
		$(STATIC_RT_LIBS) \
		$(STATIC_GC_LIBS)
endif

MCFLAGS += --mercury-linkage static

else # LINK_STATIC != yes

LINK_RT_LIB_OPTS=
LINK_STD_LIB_OPTS=
LINK_TRACE_SSDB_LIB_OPTS=

ifneq ($(LINK_BOEHM_GC_ONLY),yes)
ifneq ("$(filter csharp%,$(GRADE))","")
# There is no separate runtime library for C# grades.
LINK_RT_LIB_OPTS =
else
LINK_RT_LIB_OPTS = -l$(RT_LIB_NAME)
endif
ifneq ($(LINK_RUNTIME_ONLY),yes)
LINK_STD_LIB_OPTS = -l$(STD_LIB_NAME)
ifneq ($(LINK_STDLIB_ONLY),yes)
LINK_TRACE_SSDB_LIB_OPTS = \
		-l$(TRACE_LIB_NAME) \
		-l$(EVENTSPEC_LIB_NAME) \
		-l$(SSDB_LIB_NAME) \
		-l$(BROWSER_LIB_NAME) \
		-l$(MDBCOMP_LIB_NAME)
endif
endif
endif

LINK_LIB_OPTS = \
		$(LINK_TRACE_SSDB_LIB_OPTS) \
		$(LINK_STD_LIB_OPTS) \
		$(LINK_RT_LIB_OPTS) \
		$(SHARED_GC_LIBS)
LIB_DIR_OPTS = \
		-L$(BOEHM_GC_DIR) \
		-L$(RUNTIME_DIR) \
		-L$(LIBRARY_DIR) \
		-L$(TRACE_DIR) \
		-L$(MDBCOMP_DIR) \
		-L$(BROWSER_DIR) \
		-L$(SSDB_DIR)

MLFLAGS      += $(LIB_DIR_OPTS)
# This is now in FLAGS files.
# MCFLAGS    += $(LIB_DIR_OPTS)
MLLIBS       += $(LINK_LIB_OPTS)

MCFLAGS      += --mercury-linkage shared

ifeq ($(SET_RPATH),yes)
MLFLAGS += $(LIB_DIR_OPTS:-L%=-R%)
MCFLAGS += --flags RPATH
endif

endif # LINK_STATIC != yes