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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, 2006-2009 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 | # Systems where /bin/sh is not the default shell need this. The $(shell) | |
24 | # command below won't work with e.g. stock DOS/Windows shells. | |
25 | ifeq ($(wildcard /bin/s[h]),/bin/sh) | |
26 | SHELL = /bin/sh | |
27 | else | |
28 | # will be used only with the next shell-test line, then overwritten | |
29 | # by a configured-in value | |
30 | SHELL = sh | |
31 | endif | |
32 | ||
33 | # If the user runs GNU make but has not yet run ./configure, | |
34 | # give them a diagnostic. | |
35 | _have-Makefile := $(shell test -f Makefile && echo yes) | |
36 | ifeq ($(_have-Makefile),yes) | |
37 | ||
38 | # Make tar archive easier to reproduce. | |
39 | export TAR_OPTIONS = --owner=0 --group=0 --numeric-owner | |
40 | ||
41 | # Allow the user to add to this in the Makefile. | |
42 | ALL_RECURSIVE_TARGETS = | |
43 | ||
44 | include Makefile | |
45 | ||
46 | # Some projects override e.g., _autoreconf here. | |
47 | -include $(srcdir)/cfg.mk | |
48 | include $(srcdir)/maint.mk | |
49 | ||
50 | # Allow cfg.mk to override these. | |
51 | _build-aux ?= build-aux | |
52 | _autoreconf ?= autoreconf | |
53 | ||
54 | # Ensure that $(VERSION) is up to date for dist-related targets, but not | |
55 | # for others: rerunning autoreconf and recompiling everything isn't cheap. | |
56 | _have-git-version-gen := \ | |
57 | $(shell test -f $(srcdir)/$(_build-aux)/git-version-gen && echo yes) | |
58 | ifeq ($(_have-git-version-gen)0,yes$(MAKELEVEL)) | |
59 | _is-dist-target ?= $(filter-out %clean, \ | |
60 | $(filter maintainer-% dist% alpha beta major,$(MAKECMDGOALS))) | |
61 | _is-install-target ?= $(filter-out %check, $(filter install%,$(MAKECMDGOALS))) | |
62 | ifneq (,$(_is-dist-target)$(_is-install-target)) | |
63 | _curr-ver := $(shell cd $(srcdir) \ | |
64 | && $(_build-aux)/git-version-gen .tarball-version) | |
65 | ifneq ($(_curr-ver),$(VERSION)) | |
66 | ifeq ($(_curr-ver),UNKNOWN) | |
67 | $(info WARNING: unable to verify if $(VERSION) is the correct version) | |
68 | else | |
69 | ifneq (,$(_is-install-target)) | |
70 | # GNU Coding Standards state that 'make install' should not cause | |
71 | # recompilation after 'make all'. But as long as changing the version | |
72 | # string alters config.h, the cost of having 'make all' always have an | |
73 | # up-to-date version is prohibitive. So, as a compromise, we merely | |
74 | # warn when installing a version string that is out of date; the user | |
75 | # should run 'autoreconf' (or something like 'make distcheck') to | |
76 | # fix the version, 'make all' to propagate it, then 'make install'. | |
77 | $(info WARNING: version string $(VERSION) is out of date;) | |
78 | $(info run '$(MAKE) _version' to fix it) | |
79 | else | |
80 | $(info INFO: running autoreconf for new version string: $(_curr-ver)) | |
81 | _dummy := $(shell $(MAKE) $(AM_MAKEFLAGS) _version) | |
82 | endif | |
83 | endif | |
84 | endif | |
85 | endif | |
86 | endif | |
87 | ||
88 | .PHONY: _version | |
89 | _version: | |
90 | cd $(srcdir) && rm -rf autom4te.cache .version && $(_autoreconf) | |
91 | ||
92 | else | |
93 | ||
94 | .DEFAULT_GOAL := abort-due-to-no-makefile | |
95 | srcdir = . | |
96 | ||
97 | # The package can override .DEFAULT_GOAL to run actions like autoreconf. | |
98 | -include ./cfg.mk | |
99 | include ./maint.mk | |
100 | ||
101 | ifeq ($(.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 |