# 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

# Allow cfg.mk to override these.

_build-aux ?= build-aux

_autoreconf ?= autoreconf -v

include $(srcdir)/maint.mk

# 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