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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, 2006-2008 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 include Makefile |
| 42 |
| 43 # Some projects override e.g., _autoreconf here. |
| 44 -include $(srcdir)/cfg.mk |
| 45 include $(srcdir)/maint.mk |
| 46 |
| 47 # Allow cfg.mk to override these. |
| 48 _build-aux ?= build-aux |
| 49 _autoreconf ?= autoreconf |
| 50 |
| 51 # Ensure that $(VERSION) is up to date for dist-related targets, but not |
| 52 # for others: rerunning autoreconf and recompiling everything isn't cheap. |
| 53 _have-git-version-gen := \ |
| 54 $(shell test -f $(srcdir)/$(_build-aux)/git-version-gen && echo yes) |
| 55 ifeq ($(_have-git-version-gen)0,yes$(MAKELEVEL)) |
| 56 _is-dist-target ?= $(filter-out %clean, \ |
| 57 $(filter maintainer-% dist% alpha beta major,$(MAKECMDGOALS))) |
| 58 _is-install-target ?= $(filter-out %check, $(filter install%,$(MAKECMDGOALS))) |
| 59 ifneq (,$(_is-dist-target)$(_is-install-target)) |
| 60 _curr-ver := $(shell cd $(srcdir) \ |
| 61 && $(_build-aux)/git-version-gen .tarball-version) |
| 62 ifneq ($(_curr-ver),$(VERSION)) |
| 63 ifeq ($(_curr-ver),UNKNOWN) |
| 64 $(info WARNING: unable to verify if $(VERSION) is correct version) |
| 65 else |
| 66 ifneq (,$(_is-install-target)) |
| 67 # GNU Coding Standards state that 'make install' should not cause |
| 68 # recompilation after 'make all'. But as long as changing the version |
| 69 # string alters config.h, the cost of having 'make all' always have an |
| 70 # up-to-date version is prohibitive. So, as a compromise, we merely |
| 71 # warn when installing a version string that is out of date; the user |
| 72 # should run 'autoreconf' (or something like 'make distcheck') to |
| 73 # fix the version, 'make all' to propagate it, then 'make install'. |
| 74 $(info WARNING: version string $(VERSION) is out of date;) |
| 75 $(info run '$(MAKE) _version' to fix it) |
| 76 else |
| 77 $(info INFO: running autoreconf for new version string: $(_curr-ver)) |
| 78 _dummy := $(shell $(MAKE) $(AM_MAKEFLAGS) _version) |
| 79 endif |
| 80 endif |
| 81 endif |
| 82 endif |
| 83 endif |
| 84 |
| 85 .PHONY: _version |
| 86 _version: |
| 87 cd $(srcdir) && rm -rf autom4te.cache .version && $(_autoreconf) |
| 88 |
| 89 else |
| 90 |
| 91 .DEFAULT_GOAL := abort-due-to-no-makefile |
| 92 srcdir = . |
| 93 |
| 94 # The package can override .DEFAULT_GOAL to run actions like autoreconf. |
| 95 -include ./cfg.mk |
| 96 include ./maint.mk |
| 97 |
| 98 ifeq ($(.DEFAULT_GOAL),abort-due-to-no-makefile) |
| 99 $(MAKECMDGOALS): abort-due-to-no-makefile |
| 100 endif |
| 101 |
| 102 abort-due-to-no-makefile: |
| 103 @echo There seems to be no Makefile in this directory. 1>&2 |
| 104 @echo "You must run ./configure before running \`make'." 1>&2 |
| 105 @exit 1 |
| 106 |
| 107 endif |
| 108 |
| 109 # Tell version 3.79 and up of GNU make to not build goals in this |
| 110 # directory in parallel. This is necessary in case someone tries to |
| 111 # build multiple targets on one command line. |
| 112 .NOTPARALLEL: |
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