FIND_SUBDIRS           := $(filter-out . .. nomake CVS $(IGNORE_SUBDIRS),\
	$(patsubst ./%,%,$(patsubst %/,%,$(dir $(shell $(FIND) . -maxdepth 2 -mindepth 2 -a \( -iname Makefile -o -iname GNUmakefile \))))))
SUBDIRS_TO_ITERATE      = $(filter-out $(IGNORE_SUBDIRS),$(SUBDIRS))

ALLOWED_SUBDIR_TARGETS ?= all install clean distclean test link-in

SUBDIRS                ?= $(ORDERED_SUBDIRS) $(filter-out $(ORDERED_SUBDIRS),$(FIND_SUBDIRS))
#SUBDIRS                ?= $(filter-out $(ORDERED_SUBDIRS),$(FIND_SUBDIRS))
#SUBDIRS                ?= $(FIND_SUBDIRS)

ifneq ($(DONT_CHECK_PREREQ_DONE),true)
  ifndef PREREQ
    PREREQ           := $(call proj_query,pkg-requires --no-version --no-subpackages --subsections=jw --delimiter=' ' build $(PROJECT))
  endif
  ifndef PREREQ_DIRS
    PREREQ_DIRS      := $(call proj_query,proj-dir $(PREREQ))
  endif
  PREREQ_DIRS_DONE   := $(addsuffix /dirs-all.done,$(filter-out $(TOPDIR) /opt/%,$(PREREQ_DIRS)))
endif

ifneq ($(SUBDIRS_TO_ITERATE),)

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