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128 lines
4.5 KiB
Makefile
128 lines
4.5 KiB
Makefile
# Having a separate GNUmakefile lets me 'include' the dynamically
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# generated rules created via cfg.mk (package-local configuration)
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# as well as maint.mk (generic maintainer rules).
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# This makefile is used only if you run GNU Make.
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# It is necessary if you want to build targets usually of interest
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# only to the maintainer.
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# Copyright (C) 2001, 2003, 2006-2022 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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# If the user runs GNU make but has not yet run ./configure,
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# give them a diagnostic.
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_gl-Makefile := $(wildcard [M]akefile)
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ifneq ($(_gl-Makefile),)
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# Make tar archive easier to reproduce.
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export TAR_OPTIONS = --owner=0 --group=0 --numeric-owner
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# Allow the user to add to this in the Makefile.
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ALL_RECURSIVE_TARGETS =
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include Makefile
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# Some projects override e.g., _autoreconf here.
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-include $(srcdir)/cfg.mk
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# Allow cfg.mk to override these.
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_build-aux ?= build-aux
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_autoreconf ?= autoreconf -v
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include $(srcdir)/maint.mk
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# Ensure that $(VERSION) is up to date for dist-related targets, but not
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# for others: rerunning autoreconf and recompiling everything isn't cheap.
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_have-git-version-gen := \
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$(shell test -f $(srcdir)/$(_build-aux)/git-version-gen && echo yes)
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ifeq ($(_have-git-version-gen)0,yes$(MAKELEVEL))
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_is-dist-target ?= $(filter-out %clean, \
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$(filter maintainer-% dist% alpha beta stable,$(MAKECMDGOALS)))
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_is-install-target ?= $(filter-out %check, $(filter install%,$(MAKECMDGOALS)))
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ifneq (,$(_is-dist-target)$(_is-install-target))
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_curr-ver := $(shell cd $(srcdir) \
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&& $(_build-aux)/git-version-gen \
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.tarball-version \
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$(git-version-gen-tag-sed-script))
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ifneq ($(_curr-ver),$(VERSION))
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ifeq ($(_curr-ver),UNKNOWN)
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$(info WARNING: unable to verify if $(VERSION) is the correct version)
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else
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ifneq (,$(_is-install-target))
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# GNU Coding Standards state that 'make install' should not cause
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# recompilation after 'make all'. But as long as changing the version
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# string alters config.h, the cost of having 'make all' always have an
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# up-to-date version is prohibitive. So, as a compromise, we merely
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# warn when installing a version string that is out of date; the user
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# should run 'autoreconf' (or something like 'make distcheck') to
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# fix the version, 'make all' to propagate it, then 'make install'.
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$(info WARNING: version string $(VERSION) is out of date;)
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$(info run '$(MAKE) _version' to fix it)
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else
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$(info INFO: running autoreconf for new version string: $(_curr-ver))
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GNUmakefile: _version
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touch GNUmakefile
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endif
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endif
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endif
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endif
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endif
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.PHONY: _version
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_version:
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cd $(srcdir) && rm -rf autom4te.cache .version && $(_autoreconf)
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$(MAKE) $(AM_MAKEFLAGS) Makefile
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else
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.DEFAULT_GOAL := abort-due-to-no-makefile
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srcdir = .
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# The package can override .DEFAULT_GOAL to run actions like autoreconf.
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-include ./cfg.mk
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# Allow cfg.mk to override these.
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_build-aux ?= build-aux
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_autoreconf ?= autoreconf -v
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include ./maint.mk
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ifeq ($(.DEFAULT_GOAL),abort-due-to-no-makefile)
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$(MAKECMDGOALS): abort-due-to-no-makefile
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endif
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abort-due-to-no-makefile:
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@echo There seems to be no Makefile in this directory. 1>&2
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@echo "You must run ./configure before running '$(MAKE)'." 1>&2
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@exit 1
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endif
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# Tell version 3.79 and up of GNU make to not build goals in this
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# directory in parallel, in case someone tries to build multiple
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# targets, and one of them can cause a recursive target to be invoked.
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# Only set this if Automake doesn't provide it.
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AM_RECURSIVE_TARGETS ?= $(RECURSIVE_TARGETS:-recursive=) \
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$(RECURSIVE_CLEAN_TARGETS:-recursive=) \
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dist distcheck tags ctags
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ALL_RECURSIVE_TARGETS += $(AM_RECURSIVE_TARGETS)
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ifneq ($(word 2, $(MAKECMDGOALS)), )
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ifneq ($(filter $(ALL_RECURSIVE_TARGETS), $(MAKECMDGOALS)), )
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.NOTPARALLEL:
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endif
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endif
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