#/*@@
#  @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 $Id$
# @@*/

# Silence all but designated output
#.SILENT: 

# 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

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

FLESHLIB = Cactus
BINDINGSLIB= CactusBindings

CACTUSLIBS = $(FLESHLIB) $(BINDINGSLIB)

export MAKE_DIR  = $(CCTK_HOME)/lib/make

ALLCACTUSLIBS = $(notdir $(CACTUSLIBS) $(THORNS) $(THORNS) $(CACTUSLIBS))

# Dividers to make the screen output slightly nicer
DIVEL   =  __________________
DIVIDER =  $(DIVEL)$(DIVEL)$(DIVEL)$(DIVEL)

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

# 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
# as, 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

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

# Build the executable
$(EXEDIR)$(DIRSEP)$(EXE): $(CONFIG)/make.thornlist $(CONFIG)/cctk_version.h $(patsubst %,$(CCTK_LIBDIR)/lib%.a,$(notdir $(THORNS) $(CACTUSLIBS))) 
	@echo $(DIVIDER)
	@echo Creating $(EXE) in $(EXEDIR) from $(THORNS)
	$(CC) $(DEBUG_C) $(CFLAGS) $(CCOMPILEONLY)$(OPTIONSEP)$(TOP)$(DIRSEP)datestamp.o -I$(CONFIG) $(subst /,$(DIRSEP),$(DATESTAMP))
	if [ ! -d $(EXEDIR) ]; then $(MKDIR) $(EXEDIR) ; fi
	$(LD) $(CREATEEXE)$(OPTIONSEP)$(subst /,$(DIRSEP),$@) $(DEBUG_LD) $(LDFLAGS) $(EXTRAFLAGS) $(subst /,$(DIRSEP), $(TOP)/datestamp.o) $(CACTUSLIBLINKLINE) $(LIBDIRS:%=-L%) $(LIBS:%=-l%) 
	@echo $(DIVIDER)
	@echo All done !
	@echo $(DIVIDER)

# Version file
$(CONFIG)/cctk_version.h: $(CCTK_HOME)/Makefile
	echo "#ifndef _CCTK_VERSION_H_" > $@
	echo "#define _CCTK_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 /* _CCTK_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)/lib%.a: update
	@echo $(DIVIDER)
	@echo Checking status of $(notdir $@)
	if [ ! -d $(SCRATCH_BUILD) ]; then $(MKDIR) $(SCRATCH_BUILD) ; fi
	if [ ! -d $(BUILD_DIR) ]; then $(MKDIR) $(BUILD_DIR) ; fi
	thorn_name=$(@:$(CCTK_LIBDIR)/lib%.a=%); \
	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)/lib%.a=$(filter %/$(@:$(CCTK_LIBDIR)/lib%.a=%), $(THORNS)))/src ; fi ; fi ;\
	if [ ! -d $(BUILD_DIR)/$$thorn_name ]; then $(MKDIR) $(BUILD_DIR)/$$thorn_name ; fi ; \
	cd $(BUILD_DIR)/$$thorn_name ; \
	if [ -r "$$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=$$thorn_name -f $$make_file -j $(FJOBS)
	@echo $(DIVIDER)


# Include any extra dependencies

include $(CONFIG)/make.config.deps

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

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

# Rule to build ThornList

$(TOP)/ThornList:
	@echo $(DIVIDER)
	@echo Creating compiled ThornList containing all thorns in the arrangements directory
	$(PERL) -s $(BUILD_ACTIVETHORNS) $(CCTK_HOME)/arrangements > $@
	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 ; \
	echo $(DIVIDER) ; \
	cat $@ ; \
	echo $(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
	@echo $(DIVIDER)

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

# Phony targets.

.PHONY:update clean cleandeps cleanobjs realclean
update:

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

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

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

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/*
	rm -f datestamp.o