# Defines how to build the NEMS executables, and the full dependency
# list (all components' *.mk files).  This is the equivalent to
# component_NEMS.mk for the NEMS itself.

# Make sure the source directory exists and is non-empty.
$(call require_dir,$(NEMSDIR)/src,NEMS source directory)

# Ensure that Make knows these rules do not correspond to files to be built:
.PHONY: build_NEMS clean_NEMS

COMMA_COMPONENT_LIST=,$(subst $(space),$(comma),$(COMPONENTS)),
COMMA_COMPONENT_LIST_LOWER=$(call lc,$(COMMA_COMPONENT_LIST))
COMPONENT_DIR_LIST=$(foreach COMP,$(COMPONENTS),$(COMP)_DIR=$(call $(COMP)_BINDIR))

########################################################################
# Rule for building NEMS:

build_NEMS: $(NEMS_EXE)

component_mk_fragment=echo $(call lc,$(1))_mk="$($(call lc,$(1))_mk)" $(semicolon)

$(CONFDIR)/configure.nems.NUOPC: $(CONFDIR)/configure.nems.NUOPC.in FORCE
	( \
	echo "# Do not edit this file.  It is automatically generated." ; \
	echo "# Edit the component list or $<"                          ; \
	echo ; cat "$<"                                                 ; \
	$(foreach COMP,$(COMPONENTS),$(call component_mk_fragment,$(COMP))) ) > "$@"

$(NEMS_EXE): $(all_component_mk_files) configure \
  $(CONFDIR)/configure.nems.NUOPC
	$(MODULE_LOGIC)                                         ; \
	set -e                                                  ; \
	for m in $(all_component_mk_files) ; do                   \
	  test -s $$m                                           ; \
	done                                                    ; \
	echo build NEMS after $(all_component_mk_files)         ; \
	cd $(NEMSDIR)/src                                       ; \
	$(MAKE) nems $(NEMS_BUILDOPT)                             \
	          COMPONENTS="$(COMPONENTS)"                      \
	          $(COMPONENT_DIR_LIST) TARGET="$(NEMS_EXE)"    ; \
	test -x $(NEMS_EXE)

########################################################################
# Rules for cleaning NEMS:

clean_NEMS:
	if ! test -f $(CONFDIR)/configure.nems.NUOPC ; then       \
	  cat /dev/null > $(CONFDIR)/configure.nems.NUOPC       ; \
	  delete_nuopc=yes                                      ; \
	fi                                                      ; \
	cd $(NEMSDIR)/src ; $(MAKE) "COMPONENTS=$(COMPONENTS)"    \
	  INCLUDES_ARE_OPTIONAL=YES clean                       ; \
	if [ "$$delete_nuopc" = yes ] ; then                      \
	  rm -f $(CONFDIR)/configure.nems.NUOPC                 ; \
	fi

distclean_NEMS: clean_NEMS
	rm -f $(NEMS_EXE) $(CONFDIR)/configure.nems.NUOPC