# -*- makefile-gmake -*-
# $Id$

### Flat-makefile-based recursive builds

ifneq "" "$(filter-out $(CURDIR),$(builddir))"
  CREATE_FSMF     = $(top_srcdir)/scripts/common/impl/create_flat_submakefile.sh
  CREATE_FSMF_AWK = $(CREATE_FSMF:.sh=.awk)

  Makefile.flat: $(CREATE_FSMF) $(CREATE_FSMF_AWK) $(builddir)/Makefile.flat
	+$< $(builddir) $(subdir)
endif
MAKE_FLAT = $(MAKE) $(MFLAGS_NR) -f Makefile.flat

# *_f targets build from local flat makefiles (produced on demand)
# that disregard dependencies beyond the current subtree.

all_f: Makefile.flat
	+$(MAKE_FLAT)
clean_f: Makefile.flat
	+$(MAKE_FLAT) MTARGET=clean
purge_f: Makefile.flat
	+$(MAKE_FLAT) MTARGET=purge
libs_f: Makefile.flat
	+$(MAKE_FLAT) all_libs
sources_f: Makefile.flat
	+$(MAKE_FLAT) all_files

# *_fd targets build the local subtree in parallel according to the
# top-level flat makefile, which may entail visiting dependencies
# beyond the current subtree.

all_fd:
	+cd $(builddir)  &&  $(MAKE_FLAT) $(subdir)/
clean_fd:
	+cd $(builddir)  &&  $(MAKE_FLAT) $(subdir)/ MTARGET=clean
purge_fd:
	+cd $(builddir)  &&  $(MAKE_FLAT) $(subdir)/ MTARGET=purge

.PHONY: all_f clean_f purge_f libs_f sources_f all_fd clean_fd purge_fd