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# Copyright (C) 2015 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 <http://www.gnu.org/licenses/>.
# Both of these have the argument order "parent,child"
_noslash = $(patsubst %/,%,$1)
_relto = $(call _noslash,$(patsubst $(abspath $1)/%,%,$(abspath $2)/))
_is_subdir = $(filter $(abspath $1)/%,$(abspath $2)/)
## Declare the standard targets
all: build
.PHONY: all
## Set topobjdir, objdir, and srcdir (assumes that topsrcdir is already set)
ifeq ($(topobjdir),)
topobjdir := $(call _noslash,$(dir $(lastword $(filter %/config.mk config.mk,$(MAKEFILE_LIST)))))
endif
objdir := $(call _noslash,$(dir $(lastword $(filter-out %.mk,$(MAKEFILE_LIST)))))
srcdir := $(firstword $(call _relto,., $(topsrcdir)/$(call _relto,$(topobjdir),$(objdir)) ) .)
## Set module name
module := $(firstword $(subst /,_,$(if $(call _is_subdir,.,$(objdir)),$(call _relto,.,$(objdir)),dep-$(call _relto,$(topobjdir),$(objdir)))) all)
## Empty variables for use by the module
subdirs =
depdirs =
src_files =
obj_files =
sys_files =
clean_files =
slow_files =
conf_files =
dist_files =
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