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# Having a separate GNUmakefile lets me `include' the dynamically
# generated rules created via cfg.mk (package-local configuration)
# as well as maint.mk (generic maintainer rules).
# This makefile is used only if you run GNU Make.
# It is necessary if you want to build targets usually of interest
# only to the maintainer.
# Copyright (C) 2001, 2003, 2006-2011 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU 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 General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Systems where /bin/sh is not the default shell need this. The $(shell)
# command below won't work with e.g. stock DOS/Windows shells.
ifeq ($(wildcard /bin/s[h]),/bin/sh)
SHELL = /bin/sh
else
# will be used only with the next shell-test line, then overwritten
# by a configured-in value
SHELL = sh
endif
# If the user runs GNU make but has not yet run ./configure,
# give them a diagnostic.
_have-Makefile := $(shell test -f Makefile && echo yes)
ifeq ($(_have-Makefile),yes)
# Make tar archive easier to reproduce.
export TAR_OPTIONS = --owner=0 --group=0 --numeric-owner
# Allow the user to add to this in the Makefile.
ALL_RECURSIVE_TARGETS =
include Makefile
# Some projects override e.g., _autoreconf here.
-include $(srcdir)/cfg.mk
include $(srcdir)/maint.mk
# Allow cfg.mk to override these.
_build-aux ?= build-aux
_autoreconf ?= autoreconf -v
# Ensure that $(VERSION) is up to date for dist-related targets, but not
# for others: rerunning autoreconf and recompiling everything isn't cheap.
_have-git-version-gen := \
$(shell test -f $(srcdir)/$(_build-aux)/git-version-gen && echo yes)
ifeq ($(_have-git-version-gen)0,yes$(MAKELEVEL))
_is-dist-target ?= $(filter-out %clean, \
$(filter maintainer-% dist% alpha beta stable,$(MAKECMDGOALS)))
_is-install-target ?= $(filter-out %check, $(filter install%,$(MAKECMDGOALS)))
ifneq (,$(_is-dist-target)$(_is-install-target))
_curr-ver := $(shell cd $(srcdir) \
&& $(_build-aux)/git-version-gen \
.tarball-version \
$(git-version-gen-tag-sed-script))
ifneq ($(_curr-ver),$(VERSION))
ifeq ($(_curr-ver),UNKNOWN)
$(info WARNING: unable to verify if $(VERSION) is the correct version)
else
ifneq (,$(_is-install-target))
# GNU Coding Standards state that 'make install' should not cause
# recompilation after 'make all'. But as long as changing the version
# string alters config.h, the cost of having 'make all' always have an
# up-to-date version is prohibitive. So, as a compromise, we merely
# warn when installing a version string that is out of date; the user
# should run 'autoreconf' (or something like 'make distcheck') to
# fix the version, 'make all' to propagate it, then 'make install'.
$(info WARNING: version string $(VERSION) is out of date;)
$(info run '$(MAKE) _version' to fix it)
else
$(info INFO: running autoreconf for new version string: $(_curr-ver))
GNUmakefile: _version
touch GNUmakefile
endif
endif
endif
endif
endif
.PHONY: _version
_version:
cd $(srcdir) && rm -rf autom4te.cache .version && $(_autoreconf)
$(MAKE) $(AM_MAKEFLAGS) Makefile
else
.DEFAULT_GOAL := abort-due-to-no-makefile
srcdir = .
# The package can override .DEFAULT_GOAL to run actions like autoreconf.
-include ./cfg.mk
include ./maint.mk
ifeq ($(.DEFAULT_GOAL),abort-due-to-no-makefile)
$(MAKECMDGOALS): abort-due-to-no-makefile
endif
abort-due-to-no-makefile:
@echo There seems to be no Makefile in this directory. 1>&2
@echo "You must run ./configure before running \`make'." 1>&2
@exit 1
endif
# Tell version 3.79 and up of GNU make to not build goals in this
# directory in parallel, in case someone tries to build multiple
# targets, and one of them can cause a recursive target to be invoked.
# Only set this if Automake doesn't provide it.
AM_RECURSIVE_TARGETS ?= $(RECURSIVE_TARGETS:-recursive=) \
$(RECURSIVE_CLEAN_TARGETS:-recursive=) \
dist distcheck tags ctags
ALL_RECURSIVE_TARGETS += $(AM_RECURSIVE_TARGETS)
ifneq ($(word 2, $(MAKECMDGOALS)), )
ifneq ($(filter $(ALL_RECURSIVE_TARGETS), $(MAKECMDGOALS)), )
.NOTPARALLEL:
endif
endif
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