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 2001 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 2 of the License, or
  12 # (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 along
  20 # with this program; if not, write to the Free Software Foundation, Inc.,
  21 # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  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 have-Makefile := $(shell test -f Makefile && echo yes)
  34
  35 # If the user runs GNU make but has not yet run ./configure,
  36 # give them a diagnostic.
  37 ifeq ($(have-Makefile),yes)
  38
  39 include Makefile
  40 include $(srcdir)/Makefile.maint
  41
  42 else
  43
  44 all:
  45         @echo There seems to be no Makefile in this directory.
  46         @echo "You must run ./configure before running \`make'."
  47         @exit 1
  48
  49 endif
  50
  51 # Tell version 3.79 and up of GNU make to not build goals in this
  52 # directory in parallel.  This is necessary in case someone tries to
  53 # build multiple targets on one command line.
  54 .NOTPARALLEL: