GNUmakefile

   1 # Having a separate GNUmakefile lets me `include' both Makefile.maint
   2 # and Makefile.
   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, 2008 Free Software Foundation,
   8 # Inc.
   9 #
  10 # This file is part of GNU M4.
  11 #
  12 # GNU M4 is free software: you can redistribute it and/or modify
  13 # it under the terms of the GNU General Public License as published by
  14 # the Free Software Foundation, either version 3 of the License, or
  15 # (at your option) any later version.
  16 #
  17 # GNU M4 is distributed in the hope that it will be useful,
  18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 # GNU General Public License for more details.
  21 #
  22 # You should have received a copy of the GNU General Public License
  23 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  24
  25 # Systems where /bin/sh is not the default shell need this.  The $(shell)
  26 # command below won't work with e.g. stock DOS/Windows shells.
  27 ifeq ($(wildcard /bin/s[h]),/bin/sh)
  28 SHELL = /bin/sh
  29 else
  30 # will be used only with the next shell-test line, then overwritten
  31 # by a configured-in value
  32 SHELL = sh
  33 endif
  34
  35 have-Makefile := $(shell test -f Makefile && echo yes)
  36
  37 # If the user runs GNU make but has not yet run ./configure,
  38 # give them a diagnostic.
  39 ifeq ($(have-Makefile),yes)
  40
  41 # Make tar archive easier to reproduce.
  42 export TAR_OPTIONS = --owner=0 --group=0 --numeric-owner
  43
  44 include Makefile
  45 include $(srcdir)/Makefile.cfg
  46 include $(srcdir)/Makefile.maint
  47
  48 else
  49
  50 all:
  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: