| 1 | # Having a separate GNUmakefile lets me 'include' the dynamically |
| 2 | # generated rules created via cfg.mk (package-local configuration) |
| 3 | # as well as maint.mk (generic maintainer rules). |
| 4 | # This makefile is used only if you run GNU Make. |
| 5 | # It is necessary if you want to build targets usually of interest |
| 6 | # only to the maintainer. |
| 7 | |
| 8 | # Copyright (C) 2001, 2003, 2006-2014 Free Software Foundation, Inc. |
| 9 | |
| 10 | # This program is free software: you can redistribute it and/or modify |
| 11 | # it under the terms of the GNU General Public License as published by |
| 12 | # the Free Software Foundation, either version 3 of the License, or |
| 13 | # (at your option) any later version. |
| 14 | |
| 15 | # This program is distributed in the hope that it will be useful, |
| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | # GNU General Public License for more details. |
| 19 | |
| 20 | # You should have received a copy of the GNU General Public License |
| 21 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 22 | |
| 23 | # If the user runs GNU make but has not yet run ./configure, |
| 24 | # give them a diagnostic. |
| 25 | _gl-Makefile := $(wildcard [M]akefile) |
| 26 | ifneq ($(_gl-Makefile),) |
| 27 | |
| 28 | # Make tar archive easier to reproduce. |
| 29 | export TAR_OPTIONS = --owner=0 --group=0 --numeric-owner |
| 30 | |
| 31 | # Allow the user to add to this in the Makefile. |
| 32 | ALL_RECURSIVE_TARGETS = |
| 33 | |
| 34 | include Makefile |
| 35 | |
| 36 | # Some projects override e.g., _autoreconf here. |
| 37 | -include $(srcdir)/cfg.mk |
| 38 | |
| 39 | # Allow cfg.mk to override these. |
| 40 | _build-aux ?= build-aux |
| 41 | _autoreconf ?= autoreconf -v |
| 42 | |
| 43 | include $(srcdir)/maint.mk |
| 44 | |
| 45 | # Ensure that $(VERSION) is up to date for dist-related targets, but not |
| 46 | # for others: rerunning autoreconf and recompiling everything isn't cheap. |
| 47 | _have-git-version-gen := \ |
| 48 | $(shell test -f $(srcdir)/$(_build-aux)/git-version-gen && echo yes) |
| 49 | ifeq ($(_have-git-version-gen)0,yes$(MAKELEVEL)) |
| 50 | _is-dist-target ?= $(filter-out %clean, \ |
| 51 | $(filter maintainer-% dist% alpha beta stable,$(MAKECMDGOALS))) |
| 52 | _is-install-target ?= $(filter-out %check, $(filter install%,$(MAKECMDGOALS))) |
| 53 | ifneq (,$(_is-dist-target)$(_is-install-target)) |
| 54 | _curr-ver := $(shell cd $(srcdir) \ |
| 55 | && $(_build-aux)/git-version-gen \ |
| 56 | .tarball-version \ |
| 57 | $(git-version-gen-tag-sed-script)) |
| 58 | ifneq ($(_curr-ver),$(VERSION)) |
| 59 | ifeq ($(_curr-ver),UNKNOWN) |
| 60 | $(info WARNING: unable to verify if $(VERSION) is the correct version) |
| 61 | else |
| 62 | ifneq (,$(_is-install-target)) |
| 63 | # GNU Coding Standards state that 'make install' should not cause |
| 64 | # recompilation after 'make all'. But as long as changing the version |
| 65 | # string alters config.h, the cost of having 'make all' always have an |
| 66 | # up-to-date version is prohibitive. So, as a compromise, we merely |
| 67 | # warn when installing a version string that is out of date; the user |
| 68 | # should run 'autoreconf' (or something like 'make distcheck') to |
| 69 | # fix the version, 'make all' to propagate it, then 'make install'. |
| 70 | $(info WARNING: version string $(VERSION) is out of date;) |
| 71 | $(info run '$(MAKE) _version' to fix it) |
| 72 | else |
| 73 | $(info INFO: running autoreconf for new version string: $(_curr-ver)) |
| 74 | GNUmakefile: _version |
| 75 | touch GNUmakefile |
| 76 | endif |
| 77 | endif |
| 78 | endif |
| 79 | endif |
| 80 | endif |
| 81 | |
| 82 | .PHONY: _version |
| 83 | _version: |
| 84 | cd $(srcdir) && rm -rf autom4te.cache .version && $(_autoreconf) |
| 85 | $(MAKE) $(AM_MAKEFLAGS) Makefile |
| 86 | |
| 87 | else |
| 88 | |
| 89 | .DEFAULT_GOAL := abort-due-to-no-makefile |
| 90 | srcdir = . |
| 91 | |
| 92 | # The package can override .DEFAULT_GOAL to run actions like autoreconf. |
| 93 | -include ./cfg.mk |
| 94 | |
| 95 | # Allow cfg.mk to override these. |
| 96 | _build-aux ?= build-aux |
| 97 | _autoreconf ?= autoreconf -v |
| 98 | |
| 99 | include ./maint.mk |
| 100 | |
| 101 | ifeq ($(.DEFAULT_GOAL),abort-due-to-no-makefile) |
| 102 | $(MAKECMDGOALS): abort-due-to-no-makefile |
| 103 | endif |
| 104 | |
| 105 | abort-due-to-no-makefile: |
| 106 | @echo There seems to be no Makefile in this directory. 1>&2 |
| 107 | @echo "You must run ./configure before running 'make'." 1>&2 |
| 108 | @exit 1 |
| 109 | |
| 110 | endif |
| 111 | |
| 112 | # Tell version 3.79 and up of GNU make to not build goals in this |
| 113 | # directory in parallel, in case someone tries to build multiple |
| 114 | # targets, and one of them can cause a recursive target to be invoked. |
| 115 | |
| 116 | # Only set this if Automake doesn't provide it. |
| 117 | AM_RECURSIVE_TARGETS ?= $(RECURSIVE_TARGETS:-recursive=) \ |
| 118 | $(RECURSIVE_CLEAN_TARGETS:-recursive=) \ |
| 119 | dist distcheck tags ctags |
| 120 | |
| 121 | ALL_RECURSIVE_TARGETS += $(AM_RECURSIVE_TARGETS) |
| 122 | |
| 123 | ifneq ($(word 2, $(MAKECMDGOALS)), ) |
| 124 | ifneq ($(filter $(ALL_RECURSIVE_TARGETS), $(MAKECMDGOALS)), ) |
| 125 | .NOTPARALLEL: |
| 126 | endif |
| 127 | endif |