coreutils/GNUmakefile
Jim Meyering a5d8b18bea Generalize GNUmakefile, ...
...so that it can be used unmodified by autoconf.
* GNUmakefile: Include optional file, GNUmakefile.cfg.
Autoconf will use this to override _autoreconf and to export PATH.
(_autoreconf): Define.
(_dummy): cd to $(srcdir) before removing autom4te.cache.
2008-03-12 13:52:51 +01:00

81 lines
2.7 KiB
Makefile

# Having a separate GNUmakefile lets me `include' the dynamically
# generated rules created via Makefile.maint as well as Makefile.maint itself.
# 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, 2006-2008 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
_have-Makefile := $(shell test -f Makefile && echo yes)
# If the user runs GNU make but has not yet run ./configure,
# give them a diagnostic.
ifeq ($(_have-Makefile),yes)
# Make tar archive easier to reproduce.
export TAR_OPTIONS = --owner=0 --group=0 --numeric-owner
include Makefile
# Some projects override e.g., _autoreconf here.
-include $(srcdir)/GNUmakefile.cfg
_autoreconf ?= autoreconf
# Ensure that $(VERSION) is up to date for dist-related targets, but not
# for others: rerunning autoreconf and recompiling everything isn't cheap.
ifeq (0,$(MAKELEVEL))
_is-dist-target = $(filter-out %clean, \
$(filter dist% alpha beta major,$(MAKECMDGOALS)))
ifneq (,$(_is-dist-target))
_curr-ver := $(shell cd $(srcdir) && ./build-aux/git-version-gen \
$(srcdir)/.tarball-version)
ifneq ($(_curr-ver),$(VERSION))
$(info INFO: running autoreconf for new version string: $(_curr-ver))
_dummy := $(shell cd $(srcdir) && rm -rf autom4te.cache && $(_autoreconf)))
endif
endif
endif
include $(srcdir)/Makefile.cfg
include $(srcdir)/Makefile.maint
else
all:
@echo There seems to be no Makefile in this directory. 1>&2
@echo "You must run ./configure before running \`make'." 1>&2
@exit 1
check dist distcheck install: all
endif
# Tell version 3.79 and up of GNU make to not build goals in this
# directory in parallel. This is necessary in case someone tries to
# build multiple targets on one command line.
.NOTPARALLEL: