# subdirmk - rules for regenerating makefiles etc. # Copyright 2019 Mark Wooding # Copyright 2019 Ian Jackson # SPDX-License-Identifier: LGPL-2.0-or-later CONFIGURE ?= configure CONFIGURE_AC ?= $(CONFIGURE).ac CONFIG_STATUS ?= config.status CONFIGURE_ACS += $(CONFIGURE_AC) CONFIGURE_ACS += subdirmk/subdirmk.ac $(top_srcdir)/$(CONFIGURE): $(addprefix $(top_srcdir)/,$(CONFIGURE_ACS)) cd $(top_srcdir) && autoconf $(CONFIG_STATUS): $(top_srcdir)/$(CONFIGURE) ./$(CONFIG_STATUS) --recheck MAKEFILE_TEMPLATES += $(top_srcdir)/Perdir.sd.mk MAKEFILE_TEMPLATES += $(addprefix $(top_srcdir)/, $(addsuffix .in, \ @_SUBDIRMK_MAKEFILES@ \ )) main.mk $(MAKEFILES): .makefiles.stamp ; .makefiles.stamp: \ $(top_srcdir)/subdirmk/generate \ $(CONFIG_STATUS) \ $(MAKEFILE_TEMPLATES) # This filtering arranges that we can often run config.status to # generate only particular output files. We look for *inputs* that # have changed. If the only inputs that have changed are ones that we # know affect only one output (Subdir.mk.in and regen.mk.in), we pass # config.status the corresponding output file names. Otherwise we # pass nothing and config.status does them all. We need to mention # regen.mk.in twice because if $(top_srcdir) is `.', make elides the # directory part from $?. ./$(CONFIG_STATUS) $(if \ $(filter-out Subdir.sd.mk %/Subdir.sd.mk \ %.mk.in \ , $?),, \ $(patsubst $(top_srcdir)/%,%, $(sort \ $(patsubst %.sd.mk,%.mk,$(filter %.sd.mk,$?)) \ $(patsubst %.mk.in,%.mk,$(filter %.mk.in,$?))))) touch $@ realclean:: clean $(RM) config.status config.log $(RM) main.mk subdirmk/regen.mk $(MAKEFILES) $(RM) $(addsuffix Makefile,$(dir $(MAKEFILES))) -include $(ALL_DEPFILES)