# generic utility modules
# (c) 2001 jannet it services
# contact@jannet.de
# $Id$

ALLOWED_SUBDIR_TARGETS ?= all install clean distclean test

.NOTPARALLEL:
.PHONY: $(SUBDIRS_TO_ITERATE) $(ALLOWED_SUBDIR_TARGETS)

ifneq ($(FORCE_REBUILD_SUBDIRS),)
.PHONY: dirs-all.done
endif

include $(MODDIR)/make/defs.mk

SUBDIRS ?= $(FIND_SUBDIRS)

ifeq ($(SUBDIRS_TO_ITERATE),)

$(ALLOWED_SUBDIR_TARGETS):

else

ifeq ($(MAKECMDGOALS),)
SUBDIR_TARGETS = all
else
SUBDIR_TARGETS = $(filter $(ALLOWED_SUBDIR_TARGETS),$(MAKECMDGOALS))
endif

ifneq ($(DONT_CHECK_PREREQ_DONE),true)
PREREQ += $(call proj_query, prereq build $(PROJECT))
PREREQ_DIRS = $(foreach p, $(PREREQ), $(call proj_dir, $(p)))
PREREQ_DIRS_DONE = $(addsuffix /dirs-all.done,$(filter-out $(TOPDIR) /opt/%,$(PREREQ_DIRS)))
endif

all: dirs-all.done
install: dirs-install.done
clean: dirs.clean
distclean: dirs.clean dirs.distclean

subdirs-%:
	FORCE_REBUILD_SUBDIRS=true make $*

define subdir_rule

$(1): dirs-$(1).done

endef

$(foreach t,$(filter-out all install clean distclean,$(ALLOWED_SUBDIR_TARGETS)),$(eval $(call subdir_rule,$(t))))

%/dirs-all.done:
	@echo $@ needs to be rebuilt
ifneq ($(DONT_CHECK_PREREQ_PROJECTS),true)
	exit 1
endif

# explicit duplication of pattern-rule is needed, otherwise .PHONY: dirs-all.done won't match
dirs-all.done:
	set -e; for d in $(SUBDIRS) ; do make -wC $$d $*; done
ifneq ($(DONT_CHECK_PREREQ_DONE),true)
	touch $@
endif

dirs-%.done:
	set -e; for d in $(SUBDIRS) ; do make -wC $$d $*; done
ifneq ($(DONT_CHECK_PREREQ_DONE),true)
	touch $@
endif

ifeq ($(DEVELOPMENT),true)

dirs-all.done: $(wildcard $(BUILD_HDRDIR))

ifeq ($(SUBDIR_TARGETS),all)
dirs-all.done: $(PREREQ_DIRS_DONE)
endif
ifeq ($(SUBDIR_TARGETS),install)
dirs-all.done: $(PREREQ_DIRS_DONE)
endif

dirs-install.done: dirs-all.done
endif

dirs.clean:
	set -e; for d in $(SUBDIRS) ; do make -wC $$d clean; done
	rm -rf $(TEXTCLEAN) $(CLEAN) *.done *~ .*.swp *.tmp core *.rep

dirs.distclean:
	set -e; for d in $(SUBDIRS) ; do make -wC $$d distclean; done
	rm -rf $(DISTCLEAN)

.DEFAULT:
	$(make_dirs)

endif # SUBDIRS_TO_ITERATE