H=@
ifeq ($(origin OCAMLPATH), undefined)
   OCAMLFIND = OCAMLPATH=$(HOME)/svn/claudio/components/METAS ocamlfind
else
   OCAMLFIND = ocamlfind
endif

RELISE = $(MAIN:%=%_$(shell cat MakeVersion))

DOWNDIR = $(HOME)/svn/helm_stable/www/lambdadelta/download

DIRECTORIES = $(addprefix $(SRC)/,$(shell cat $(SRC)/Make))

INCLUDES = $(DIRECTORIES:%=-I %) 

OCAMLDEP  = $(OCAMLFIND) ocamldep -native $(INCLUDES)
OCAMLOPT  = $(OCAMLFIND) opt $(OCAMLOPTIONS) -linkpkg -package "$(REQUIRES)" $(INCLUDES)
OCAMLLEX  = ocamllex.opt
OCAMLYACC = ocamlyacc -v
TAR       = tar -czf etc/$(MAIN:%=%.tgz)

define DIR_TEMPLATE
   MODULES += $$(addprefix $(1)/,$$(shell cat $(1)/Make))
endef

define MOD_TEMPLATE
   SOURCES += $$(if $$(wildcard $(1).ml[yi]),$(1).mli $(1).ml,$(1).ml)  
   CMXS    += $(1).cmx
   CLEAN   += $(1).cmi $(1).cmx $(1).o 
   CLEAN   += $$(if $$(wildcard $(1).ml[ly]),$(1).ml,)
   CLEAN   += $$(if $$(wildcard $(1).mly),$(1).mli $(1).output,)
   KEEP    += $$(if $$(wildcard $(1).mly),$(1).mly,\
               $$(if $$(wildcard $(1).mll),$(1).mll,\
	        $$(if $$(wildcard $(1).mli),$(1).mli $(1).ml,$(1).ml)\
               )\
	      )
endef

define INCLUDE_TEMPLATE
   ifeq ($(MAKECMDGOALS), $(1))
      include .depend.opt
   endif
endef

$(foreach DIR, $(DIRECTORIES), $(eval $(call DIR_TEMPLATE, $(DIR))))
$(foreach MOD, $(MODULES), $(eval $(call MOD_TEMPLATE, $(MOD))))

OBJECTS = $(patsubst %.ml,%.cmx,$(SOURCES:%.mli=%.cmi))
CLEAN += $(MAIN).opt

all opt: .depend.opt
	@$(MAKE) --no-print-directory $(MAIN).opt

$(MAIN).opt: $(OBJECTS)
	@echo "  OCAMLOPT -o $(MAIN).opt"
	$(H)$(OCAMLOPT) -o $(MAIN).opt $(CMXS)

.depend.opt: $(SOURCES) 
	@echo "  OCAMLDEP -native"
	$(H)$(OCAMLDEP) $^ > .depend.opt

clean:
	@echo "  CLEAN . $(SRC)"
	$(H)find -name "*~" | xargs $(RM) $(CLEAN)

relise: clean
	@echo "  RELISE $(RELISE)"
	$(H)mkdir -p $(RELISE)
	$(H)$(foreach FILE, $(shell cat Make), cp --parents $(FILE) $(RELISE);)
	$(H)tar -czf etc/$(RELISE).tar.gz $(RELISE)
	$(H)scp etc/$(RELISE).tar.gz $(DOWNDIR)

tgz: clean
	@echo "  TAR -czf $(MAIN:%=%.tgz) . $(DIRECTORIES)" 
	$(H)find -name "Make*" | xargs $(TAR) $(KEEP)

etc:
	@echo "  MKDIR etc"
	$(H)mkdir etc

%.ml %.mli: %.mly
	@echo "  OCAMLYACC $<"
	$(H)$(OCAMLYACC) $<
%.ml: %.mll
	@echo "  OCAMLLEX $<"
	$(H)$(OCAMLLEX) $<
%.cmi: %.mli
	@echo "  OCAMLOPT $<"
	$(H)$(OCAMLOPT) -c $<
%.cmx: %.ml
	@echo "  OCAMLOPT $<"
	$(H)$(OCAMLOPT) -c $<

TAGS += all opt $(MAIN).opt

$(foreach TAG, $(TAGS), $(eval $(call INCLUDE_TEMPLATE, $(TAG))))