# Copyright (C) 2015-2016 Luke Shumaker # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see . # This bit only gets evaluated once, at the very beginning ifeq ($(_at.NO_ONCE),) ifeq ($(topsrcdir),) $(error topsrcdir must be set before including Makefile.head.mk) endif ifeq ($(topoutdir),) $(error topoutdir must be set before including Makefile.head.mk) endif _at.noslash = $(patsubst %/.,%,$(patsubst %/,%,$1)) # These are all $(call _at.func,parent,child) #at.relto = $(if $2,$(shell realpath -sm --relative-to='$1' $2)) _at.is_subdir = $(filter $(abspath $1)/%,$(abspath $2)/.) _at.relto_helper = $(if $(call _at.is_subdir,$1,$2),$(patsubst $1/%,%,$(addsuffix /.,$2)),$(addprefix ../,$(call _at.relto_helper,$(patsubst %/,%,$(dir $1)),$2))) _at.relto = $(call _at.noslash,$(call _at.relto_helper,$(call _at.noslash,$(abspath $1)),$(call _at.noslash,$(abspath $2)))) at.relto = $(foreach p,$2,$(call _at.relto,$1,$p)) # Note that _at.is_subdir says that a directory is a subdirectory of # itself. at.path = $(call at.relto,.,$1) define at.nl endef _at.rest = $(wordlist 2,$(words $1),$1) _at.reverse = $(if $1,$(call _at.reverse,$(_at.rest))) $(firstword $1) at.dirlocal += at.subdirs at.dirlocal += at.depdirs include $(sort $(wildcard $(topsrcdir)/build-aux/Makefile.once.head/*.mk)) endif # _at.NO_ONCE # This bit gets evaluated for each Makefile ## Set outdir and srcdir (assumes that topoutdir and topsrcdir are ## already set) outdir := $(call at.path,$(dir $(lastword $(filter-out %.mk,$(MAKEFILE_LIST))))) srcdir := $(call at.path,$(topsrcdir)/$(call _at.relto,$(topoutdir),$(outdir))) _at.included_makefiles := $(_at.included_makefiles) $(call at.path,$(outdir)/Makefile) $(foreach v,$(at.dirlocal),$(eval $v=)) include $(sort $(wildcard $(topsrcdir)/build-aux/Makefile.each.head/*.mk))