#/*@@
#  @file      make.configuration
#  @date      Sun Jan 17 22:15:23 1999
#  @author    Tom Goodale
#  @desc
#  Makes the CCTK executable for a particular configuration
#  @enddesc
#  @version $Id$
# @@*/

# Some configuration variables
CONFIG = $(TOP)/config-data
BINDINGS_DIR = $(TOP)/bindings
FLESH_DIR = $(CCTK_HOME)/src


# Scratch build area - need this to make sure F90 module files end up all
# in one directory.
export SCRATCH_BUILD=$(TOP)/scratch


# Check if the user specified options which are only used at configure time
# We only check some obvious configuration options here.
ifneq ($(strip $(DEBUG)), )
  $(warning "You specified 'DEBUG=$(DEBUG)'. This option is evaluated only at configuration time and will be ignored at compile time.")
endif
ifneq ($(strip $(OPTIMISE)), )
  $(warning "You specified 'OPTIMISE=$(OPTIMISE)'. This option is evaluated only at configuration time and will be ignored at compile time.")
endif
ifneq ($(strip $(OPTIMIZE)), )
  $(warning "You specified 'OPTIMIZE=$(OPTIMIZE)'. This option is evaluated only at configuration time and will be ignored at compile time.")
endif
ifneq ($(strip $(PROFILE)), )
  $(warning "You specified 'PROFILE=$(PROFILE)'. This option is evaluated only at configuration time and will be ignored at compile time.")
endif

export MAKE_DIR  = $(CCTK_HOME)/lib/make

CCTK_LIBNAME_PREFIX=thorn_
FLESHLIB = Cactus
BINDINGSLIB= CactusBindings

CACTUSLIBS = $(FLESHLIB) $(BINDINGSLIB)

# Dividers to make the screen output slightly nicer
DIVEL   =  __________________
DIVIDER =  $(DIVEL)$(DIVEL)$(DIVEL)$(DIVEL)
ifeq ($(shell echo $(VERBOSE) | tr '[:upper:]' '[:lower:]'),yes)
define NOTIFY_DIVIDER
	echo $(DIVIDER)
endef
else
define NOTIFY_DIVIDER
	:
endef
endif

# Include the definitions for this configuration
include $(CONFIG)/make.config.defn

# Define the name of the source file which is the one object on the linkline

DATESTAMP = $(CCTK_HOME)/src/datestamp.c

export PERLINTERP = $(shell echo $(PERL) | sed 's,^/cygdrive/\(.\)/,\1:/,' | sed 's,^//\(.\)/,\1:/,' )

# Use a phony main target to make sure we print a nice ending message 8-)
.PHONY: main

main: $(EXEDIR)$(DIRSEP)$(EXE)
	@echo All done !
	$(NOTIFY_DIVIDER)


# Put this in temporarily to make sure that people with existing
# configurations aren't disturbed

ifeq ($(strip $(LIBNAME_PREFIX)),)
ifeq ($(strip $(LIBNAME_SUFFIX)),)
LIBNAME_PREFIX = lib#
LIBNAME_SUFFIX = .a
endif
endif

# Include the list of thorns to be built
# (Use -include to prevent warnings messages, as the file will be built if
# it is missing .)
# We don't want to include this file if doing something like a make clean
# because if the file didn't exist, it would first be made, which would be
# pretty confusing during a make clean !

ifeq ($(strip $(MAKECMDGOALS)),)
-include $(CONFIG)/make.thornlist
endif

ifeq ($(strip $(MAKECMDGOALS)), utils)
-include $(CONFIG)/make.thornlist
endif

ifeq ($(strip $(MAKECMDGOALS)), build)
-include $(CONFIG)/make.thornlist
endif

ifeq ($(suffix $(strip $(MAKECMDGOALS))), .custom)
-include $(CONFIG)/make.thornlist
endif

# When building utility programs, include makefile definitions
# generated from a thorn's configuration.ccl
ifeq ($(strip $(UTILS)),)
ifneq ($(strip $(THORN_LINKLIST)),)
-include $(THORN_LINKLIST:%=$(BINDINGS_DIR)/Configuration/Thorns/make.%.defn)
endif
endif

# Allow each thorn to include some global definitions
ifneq ($(strip $(THORNS)),)
-include $(THORNS:%=$(PACKAGE_DIR)/%/src/make.configuration.defn)
endif

ifeq ($(strip $(UTILS)),)
override UTILS = $(ALL_UTILS)
endif

UTIL_DIR=$(EXEDIR)$(DIRSEP)$(CONFIG_NAME)


# Build the list of all libraries
ifeq ($(strip $(BEGIN_WHOLE_ARCHIVE_FLAGS)),)
# Repeat Cactus only if --whole-archive is not used
ALLCACTUSLIBS_BASE = $(notdir $(CACTUSLIBS) $(THORN_LINKLIST) $(CACTUSLIBS))
else
ALLCACTUSLIBS_BASE = $(notdir $(THORNS) $(CACTUSLIBS))
endif

ALLCACTUSLIBS = $(ALLCACTUSLIBS_BASE:%=$(CCTK_LIBNAME_PREFIX)%)

$(CCTK_LIBDIR)/LINKLIST: $(patsubst %,$(CCTK_LIBDIR)/$(LIBNAME_PREFIX)$(CCTK_LIBNAME_PREFIX)%$(LIBNAME_SUFFIX),$(notdir $(THORNS) $(CACTUSLIBS)))
	cd $(CCTK_LIBDIR); \
	for thorn in $(notdir $(THORNS) $(CACTUSLIBS)); do \
		$(XARGS) -n 1 -I :OBJFILE: echo $$thorn/:OBJFILE: <$(LIBNAME_PREFIX)$(CCTK_LIBNAME_PREFIX)$$thorn$(LIBNAME_SUFFIX).objectlist; \
	done >$@.tmp
	mv $@.tmp $@

# Build the executable
$(EXEDIR)$(DIRSEP)$(EXE): $(CONFIG)/make.thornlist $(CONFIG)/cctki_version.h $(patsubst %,$(CCTK_LIBDIR)/$(LIBNAME_PREFIX)$(CCTK_LIBNAME_PREFIX)%$(LIBNAME_SUFFIX),$(notdir $(THORNS) $(CACTUSLIBS))) $(CCTK_LIBDIR)/LINKLIST
	@echo Creating $(EXE) in $(EXEDIR) from $(THORNS)
	datetime=`/bin/date +'%Y-%m-%dT%H:%M:%S%z' 2>&1` ; \
	if [ $$? != 0 ]; then datetime=`/bin/date` ; fi ; \
	$(CC) $(CFLAGS) -DCCTK_COMPILE_DATETIME="$$datetime" $(CCOMPILEONLY)$(OPTIONSEP)"$(call TRANSFORM_DIRS,$(TOP)/datestamp.o)" -I"$(call TRANSFORM_DIRS,$(CCTK_HOME)/src/include)" -I"$(call TRANSFORM_DIRS,$(CONFIG))" "$(call TRANSFORM_DIRS,$(DATESTAMP))"
	if [ ! -d $(EXEDIR) ]; then $(MKDIR) $(MKDIRFLAGS) $(EXEDIR) ; fi
	$(LD) $(CREATEEXE)$(OPTIONSEP)"$(call TRANSFORM_DIRS,$@)" $(CPPFLAGS) $(CXXFLAGS) $(LDFLAGS) $(EXTRAFLAGS) "$(call TRANSFORM_DIRS,$(TOP)/datestamp.o)" $(BEGIN_WHOLE_ARCHIVE_FLAGS) $(CACTUSLIBLINKLINE) $(END_WHOLE_ARCHIVE_FLAGS) $(GENERAL_LIBRARIES)
	@echo Done creating $(EXE).
	$(NOTIFY_DIVIDER)

# Version file
$(CONFIG)/cctki_version.h: $(CCTK_HOME)/Makefile
	echo "#ifndef _CCTKI_VERSION_H_" > $@
	echo "#define _CCTKI_VERSION_H_" >> $@
	echo "#define CCTK_VERSION_MAJOR $(CCTK_VERSION_MAJOR)" >> $@
	echo "#define CCTK_VERSION_MINOR $(CCTK_VERSION_MINOR)" >> $@
	echo "#define CCTK_VERSION_OTHER $(CCTK_VERSION_OTHER)" >> $@
	echo "#define CCTK_VERSION       $(CCTK_VERSION)" >> $@
	echo "#endif /* _CCTKI_VERSION_H_ */" >> $@

# Build a thorn library
# Libraries go into the appropriate library directory
# Each thorn's object files go into $(BUILD_DIR)/<thorn>
# This makes sure the appropriate build directories exist
# Also checks for the existance of Makefile in the thorn's
# src directory, and calls that rather than the default makefile
# used for making thorn libraries.
#
# Checks if the library is Cactus, in which case it uses the main source
# directory.

$(CCTK_LIBDIR)/$(LIBNAME_PREFIX)$(CCTK_LIBNAME_PREFIX)%$(LIBNAME_SUFFIX): update
        # (the mkdir below is protected against parallel makes)
	@thorn_name=$(@:$(CCTK_LIBDIR)/$(LIBNAME_PREFIX)$(CCTK_LIBNAME_PREFIX)%$(LIBNAME_SUFFIX)=%) ; \
	echo "Checking status of thorn $$thorn_name" ; \
	if [ ! -d $(SCRATCH_BUILD) ] ; \
	then \
		msg=`$(MKDIR) $(MKDIRFLAGS) $(SCRATCH_BUILD) 2>&1` ; \
		if [ ! -d $(SCRATCH_BUILD) ] ; \
		then \
			echo "$$msg" ; \
			exit 1 ; \
		fi ; \
	fi ; \
	if [ ! -d $(BUILD_DIR) ] ; \
	then \
		msg=`$(MKDIR) $(MKDIRFLAGS) $(BUILD_DIR) 2>&1` ; \
		if [ ! -d $(BUILD_DIR) ] ; \
		then \
			echo "$$msg" ; \
			exit 1 ; \
		fi ; \
	fi ; \
	if [ "$$thorn_name" = "Cactus" ] ; \
	then \
		src_dir=$(CCTK_HOME)/src ; \
	else \
		if [ "$$thorn_name" = "CactusBindings" ] ; \
		then \
			src_dir=$(BINDINGS_DIR) ; \
		else \
			src_dir=$(PACKAGE_DIR)/$(@:$(CCTK_LIBDIR)/$(LIBNAME_PREFIX)$(CCTK_LIBNAME_PREFIX)%$(LIBNAME_SUFFIX)=$(filter %/$(@:$(CCTK_LIBDIR)/$(LIBNAME_PREFIX)$(CCTK_LIBNAME_PREFIX)%$(LIBNAME_SUFFIX)=%), $(THORNS)))/src ; \
		fi ; \
	fi ; \
	if [ ! -d $(BUILD_DIR)/$$thorn_name ]; \
	then \
		$(MKDIR) $(MKDIRFLAGS) $(BUILD_DIR)/$$thorn_name ; \
	fi ; \
	cd $(BUILD_DIR)/$$thorn_name ; \
	$(NOTIFY_DIVIDER) ; \
	if [ -r "$$src_dir/Makefile" ] ; \
	then \
		make_file=$$src_dir/Makefile ; \
	else \
		make_file=$(MAKE_DIR)/make.thornlib ; \
	fi ; \
	$(MAKE) TOP=$(TOP) SRCDIR=$$src_dir CONFIG=$(CONFIG) NAME=$@ THORN=$$thorn_name USESTHORNS="$(USESTHORNS_$(@:$(CCTK_LIBDIR)/$(LIBNAME_PREFIX)$(CCTK_LIBNAME_PREFIX)%$(LIBNAME_SUFFIX)=%))" -f $$make_file $(FPARFLAGS)
	$(NOTIFY_DIVIDER)


# Include any extra dependencies

include $(CONFIG)/make.config.deps

# Rule to build the make.thornlist file from the ThornList file

rebuild: $(CONFIG)/make.thornlist

$(CONFIG)/make.thornlist: $(TOP)/ThornList $(foreach lib, $(CCTK_HOME)/src $(THORNS:%=$(PACKAGE_DIR)/%), $(lib)/param.ccl $(lib)/interface.ccl $(lib)/schedule.ccl) $(CCTK_HOME)/src/configuration.ccl $(CONFIG_THORNS:%=$(PACKAGE_DIR)/%/configuration.ccl) $(CCTK_HOME)/lib/make/force-rebuild
	if [ -r $@ ] ; then echo Reconfiguring thorns ; rm $@ ;\
	else echo Processing CCL files ; fi
	+$(PERL) -s $(CST) -config_dir=$(CONFIG) -cctk_home=$(CCTK_HOME) -top=$(TOP) $<

# Rule to build ThornList

$(TOP)/ThornList:
	@echo Creating compiled ThornList containing all thorns in the arrangements directory
	$(PERL) -s $(BUILD_ACTIVETHORNS) $(CCTK_HOME)/arrangements > $@
	if test "x$(PROMPT)" = "xyes" ; then \
	action="yes"; if [ "x$$EDITOR" = "x" ] ; then EDITOR=vi ; fi; \
	while [ "x$$action" = "xyes" -o "x$$action" = "xy" -o "x$$action" = "xYES" -o "x$$action" = "xY" ] ; \
	do \
	echo The thorn list is ; \
	$(NOTIFY_DIVIDER) ; \
	cat $@ ; \
	$(NOTIFY_DIVIDER) ; \
	echo Edit this list \(no\) \? ; \
	read action rest ; \
	if [ "x$$action" = "xyes" -o "x$$action" = "xy" -o "x$$action" = "xYES" -o "x$$action" = "xY" ] ; \
	then $$EDITOR $@ ; fi ; \
	done; \
	fi
	$(NOTIFY_DIVIDER)

# Allow each thorn to include some global dependencies
ifneq ($(strip $(THORNS)),)
-include $(THORNS:%=$(PACKAGE_DIR)/%/src/make.configuration.deps) $(THORNS:%=$(BINDINGS_DIR)/Configuration/Thorns/make.%.deps)
endif

# Catch the special case of a thorn being removed from the disk entirely.
$(foreach lib, $(CCTK_HOME)/src $(THORNS:%=$(PACKAGE_DIR)/%), $(lib)/param.ccl $(lib)/interface.ccl $(lib)/schedule.ccl) $(CCTK_HOME)/src/configuration.ccl $(CONFIG_THORNS:%=$(PACKAGE_DIR)/%/configuration.ccl):
	@echo "Missing file $@"
	@echo "Possibly from a thorn deleted from an arrangement"
	@echo "Deleting make.thornlist"
	rm  $(CONFIG)/make.thornlist
	@echo "Please try building again"
	exit 1


# Phony targets.

.PHONY:update editthorns clean cleandeps cleanobjs realclean build

# This phony target forces an update.
update:

editthorns:
	if test ! -r $(TOP)/ThornList ; then \
	echo "Creating compiled ThornList containing all thorns in the arrangements directory" \
	$(PERL) -s $(BUILD_ACTIVETHORNS) $(CCTK_HOME)/arrangements > $@ ; fi
	action="yes"; if [ "x$$EDITOR" = "x" ] ; then EDITOR=vi ; fi; \
	while [ "x$$action" = "xyes" -o "x$$action" = "xy" -o "x$$action" = "xYES" -o "x$$action" = "xY" ] ; \
	do \
	echo The thorn list is ; \
	$(NOTIFY_DIVIDER) ; \
	cat $(TOP)/ThornList ; \
	$(NOTIFY_DIVIDER) ; \
	echo Edit this list \(no\) \? ; \
	read action rest ; \
	if [ "x$$action" = "xyes" -o "x$$action" = "xy" -o "x$$action" = "xYES" -o "x$$action" = "xY" ] ; \
	then $$EDITOR $(TOP)/ThornList ; fi ; \
	done
	$(NOTIFY_DIVIDER)

clean:
	@echo Deleting all object and dependency files in $(TOP)
	find $(TOP) \( -name '*.[od]' -o -name '*.a' \) -exec rm {} \;
	rm -rf $(TOP)/scratch; $(MKDIR) $(MKDIRFLAGS) $(TOP)/scratch

cleandeps:
	@echo Deleting all dependency files in $(TOP)
	if test -d $(TOP)/build; then \
          find $(TOP)/build \( -name '*.[d]' -o -name '*.a' \) -exec rm {} \; ; \
        fi

cleanobjs:
	@echo Deleting all object files in $(TOP)
	find $(TOP) \( -name '*.[o]' -o -name '*.a' \) -exec rm {} \;
	rm -rf $(TOP)/scratch; $(MKDIR) $(MKDIRFLAGS) $(TOP)/scratch

realclean:
	@echo Deleting all built files in $(TOP)
	rm -rf $(TOP)/build
	rm -rf $(TOP)/bindings
	rm -rf $(TOP)/config-data/make.thornlist
	rm -rf $(TOP)/lib; $(MKDIR) $(MKDIRFLAGS) $(TOP)/lib
	rm -rf $(TOP)/scratch; $(MKDIR) $(MKDIRFLAGS) $(TOP)/scratch
	rm -f datestamp.o

# This target will build only a subset of the thorns for a given configuration.
# It also warns about thorns which don't exist.
THORN_BUILDLIST = $(filter $(ALLCACTUSLIBS_BASE), $(BUILDLIST))
UNKNOWN_THORNS = $(filter-out $(ALLCACTUSLIBS_BASE), $(BUILDLIST))

build: $(CONFIG)/make.thornlist $(CONFIG)/cctki_version.h $(patsubst %, $(CCTK_LIBDIR)/$(LIBNAME_PREFIX)$(CCTK_LIBNAME_PREFIX)%$(LIBNAME_SUFFIX), $(THORN_BUILDLIST))
	if test "x$(UNKNOWN_THORNS)" != "x"; then \
	  echo "WARNING: Don't know anything about '$(UNKNOWN_THORNS)' !"; \
	  $(NOTIFY_DIVIDER); \
	fi


# This target allows thorns to add to $(ALL_UTILS) and then
# have them built by a make utils

.PHONY: utils

utils: $(UTILS:%=$(UTIL_DIR)$(DIRSEP)%)