# 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, 2006-2024 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 . # If the user runs GNU make but has not yet run ./configure, # give them a diagnostic. _gl-Makefile := $(wildcard [M]akefile) ifneq ($(_gl-Makefile),) # Make tar archive easier to reproduce. export TAR_OPTIONS = --owner=0 --group=0 --numeric-owner --sort=name # 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) $(AM_MAKEFLAGS) Makefile else .DEFAULT_GOAL := abort-due-to-no-makefile srcdir = . # The package can override .DEFAULT_GOAL to run actions like autoreconf. -include ./cfg.mk # Allow cfg.mk to override these. _build-aux ?= build-aux _autoreconf ?= autoreconf -v include ./maint.mk ifeq ($(.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