build-aux/GNUmakefile

   1 # Having a separate GNUmakefile lets me `include' the dynamically
   2 # generated rules created via Makefile.maint as well as Makefile.maint itself.
   3 # This makefile is used only if you run GNU Make.
   4 # It is necessary if you want to build targets usually of interest
   5 # only to the maintainer.
   6
   7 # Copyright (C) 2001, 2003, 2006, 2007 Free Software Foundation, Inc.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 3 of the License,
  12 # or (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21
  22 # Systems where /bin/sh is not the default shell need this.  The $(shell)
  23 # command below won't work with e.g. stock DOS/Windows shells.
  24 ifeq ($(wildcard /bin/s[h]),/bin/sh)
  25 SHELL = /bin/sh
  26 else
  27 # will be used only with the next shell-test line, then overwritten
  28 # by a configured-in value
  29 SHELL = sh
  30 endif
  31
  32 # Make tar archive easier to reproduce.
  33 export TAR_OPTIONS = --owner=0 --group=0 --numeric-owner
  34
  35 # Ran autoreconf and configure or not?
  36 have-Makefile := $(shell test -f Makefile && echo yes)
  37 ifeq ($(have-Makefile),yes)
  38
  39 include Makefile
  40 -include $(srcdir)/maint-cfg.mk
  41 include $(srcdir)/maint.mk
  42
  43 else
  44
  45 .DEFAULT_GOAL := abort-due-to-no-makefile
  46
  47 -include ./maint-cfg.mk
  48 include ./maint.mk
  49
  50 abort-due-to-no-makefile:
  51         @echo There seems to be no Makefile in this directory.   1>&2
  52         @echo "You must run ./configure before running \`make'." 1>&2
  53         @exit 1
  54
  55 endif
  56
  57 # Tell version 3.79 and up of GNU make to not build goals in this
  58 # directory in parallel.  This is necessary in case someone tries to
  59 # build multiple targets on one command line.
  60 .NOTPARALLEL: