share/mk/autoconf.mk

   1 # $Id: autoconf.mk,v 1.8 2012/11/19 05:37:48 sjg Exp $
   2 #
   3 #       @(#) Copyright (c) 1996-2009, Simon J. Gerraty
   4 #
   5 #       This file is provided in the hope that it will
   6 #       be of use.  There is absolutely NO WARRANTY.
   7 #       Permission to copy, redistribute or otherwise
   8 #       use this file is hereby granted provided that
   9 #       the above copyright notice and this notice are
  10 #       left intact.
  11 #
  12 #       Please send copies of changes and bug-fixes to:
  13 #       sjg@crufty.net
  14 #
  15
  16 .NOPATH:        config.h config.status
  17
  18 .if !target(config.h)
  19 config.h:       ${.CURDIR}/config.h.in config.status
  20         ./config.status
  21 .endif
  22
  23 .if !target(config.status)
  24 # avoid the targets behaving differently
  25 .if exists(${.OBJDIR}/config.status)
  26 config.status:  config.recheck
  27 .else
  28 config.status:  config.gen
  29 .endif
  30
  31 config.recheck: config.h.in ${.CURDIR}/configure
  32         ./config.status --recheck
  33         @touch $@
  34
  35 config.gen: config.h.in ${.CURDIR}/configure
  36         CC="${CC} ${CCMODE}" ${.CURDIR}/configure --no-create ${CONFIGURE_ARGS}
  37         @touch $@ config.recheck
  38
  39 CLEANFILES+= config.recheck config.gen config.status *.meta
  40 .endif
  41
  42 # avoid things blowing up if these are not here...
  43 # this is not quite per the autoconf manual,
  44 # and is extremely convoluted - but all utterly necessary!
  45
  46 .if make(autoconf-in) || make(configure) || make(config.h.in) || ${AUTO_AUTOCONF:Uno:tl} == "yes"
  47 AUTOCONF ?= autoconf
  48 AUTOHEADER ?= autoheader
  49
  50 # expand it to a full path
  51 AUTOCONF := ${AUTOCONF:${M_whence}}
  52
  53 .if exists(${AUTOCONF})
  54
  55 .PRECIOUS: configure config.h.in config.status
  56
  57 ACLOCAL =
  58 ACCONFIG =
  59
  60 .if exists(${.CURDIR}/aclocal.m4)
  61 ACLOCAL += aclocal.m4
  62 .endif
  63 # use of acconfig.h is deprecated!
  64 .if exists(${.CURDIR}/acconfig.h)
  65 ACCONFIG += acconfig.h
  66 .endif
  67
  68 config.h.in:    ${.CURDIR}/configure.in ${ACCONFIG}
  69         (cd ${.CURDIR} && ${AUTOHEADER})
  70
  71 configure:      ${.CURDIR}/configure.in ${ACLOCAL}
  72         (cd ${.CURDIR} && ${AUTOCONF})
  73
  74 AUTOCONF_INPUTS += configure
  75 autoconf-input: ${AUTOCONF_INPUTS}
  76
  77 .endif
  78 .endif