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dnl This is an autoconf script.
dnl To rebuild the `configure' script from this, execute the command
dnl 	autoconf
dnl in the directory containing this script.
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AC_PREREQ(2.4.1)dnl
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AC_INIT(src/lisp.h)
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AC_CONFIG_HEADER(src/config.h:src/config.in)
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lispdir='${datadir}/emacs/${version}/lisp'
locallisppath='${datadir}/emacs/site-lisp'
lisppath='${locallisppath}:${lispdir}'
etcdir='${datadir}/emacs/${version}/etc'
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lockdir='${sharedstatedir}/emacs/lock'
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archlibdir='${libexecdir}/emacs/${version}/${configuration}'
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docdir='${datadir}/emacs/${version}/etc'

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AC_ARG_WITH(gcc,
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[  --with-gcc              use GCC to compile Emacs])
AC_ARG_WITH(pop,
[  --with-pop              support POP for mail retrieval],
[AC_DEFINE(MAIL_USE_POP)])
AC_ARG_WITH(kerberos,
[  --with-kerberos         support Kerberos-authenticated POP],
[AC_DEFINE(KERBEROS)])
AC_ARG_WITH(hesiod,
[  --with-hesiod           support Hesiod to get the POP server host],
[AC_DEFINE(HESIOD)])
dnl This should be the last --with option, because --with-x is
dnl added later on when we find the path of X, and it's best to
dnl keep them together visually.
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AC_ARG_WITH(x-toolkit,
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[  --with-x-toolkit=KIT    use an X toolkit (KIT = yes/lucid/athena/motif)],
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[	  case "${withval}" in
	    y | ye | yes )	val=athena ;;
	    n | no )		val=no  ;;
	    l | lu | luc | luci | lucid )	val=lucid ;;
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	    a | at | ath | athe | athen | athena )	val=athena ;;
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	    m | mo | mot | moti | motif )	val=motif ;;
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dnl These don't currently work.
dnl	    o | op | ope | open | open- | open-l | open-lo \
dnl		| open-loo | open-look )	val=open-look ;;
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	    * )
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dnl AC_MSG_ERROR([the \`--with-x-toolkit' option is supposed to have a value
dnl which is \`yes', \`no', \`lucid', \`athena', \`motif' or \`open-look'.])
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AC_MSG_ERROR([\`--with-x-toolkit=$withval' is invalid\;
this option's value should be \`yes', \`no', \`lucid', \`athena', or \`motif'.
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Currently, \`yes', \`athena' and \`lucid' are synonyms.])
	    ;;
	  esac
	  with_x_toolkit=$val
])

#### Make srcdir absolute, if it isn't already.  It's important to
#### avoid running the path through pwd unnecessary, since pwd can
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#### give you automounter prefixes, which can go away.  We do all this
#### so Emacs can find its files when run uninstalled.
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case "${srcdir}" in
  /* ) ;;
  . )
    ## We may be able to use the $PWD environment variable to make this
    ## absolute.  But sometimes PWD is inaccurate.
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    ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
    CDPATH=
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    if test "${PWD}" != "" && test "`(cd ${PWD} ; sh -c pwd)`" = "`pwd`"  ;
    then
      srcdir="$PWD"
    else
      srcdir="`(cd ${srcdir}; pwd)`"
    fi
  ;;
  *  ) srcdir="`(cd ${srcdir}; pwd)`" ;;
esac

#### Check if the source directory already has a configured system in it.
if test `pwd` != `(cd ${srcdir} && pwd)` \
   && test -f "${srcdir}/src/config.h" ; then
  AC_MSG_WARN([The directory tree \`${srcdir}' is being used
   as a build directory right now; it has been configured in its own
   right.  To configure in another directory as well, you MUST
   use GNU make.  If you do not have GNU make, then you must
   now do \`make distclean' in ${srcdir},
   and then run $0 again.])

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changequote(, )dnl
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  extrasub='/^VPATH[	 ]*=/c\
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changequote([, ])dnl
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vpath %.c $(srcdir)\
vpath %.h $(srcdir)\
vpath %.y $(srcdir)\
vpath %.l $(srcdir)\
vpath %.s $(srcdir)\
vpath %.in $(srcdir)'
fi

#### Given the configuration name, set machfile and opsysfile to the
#### names of the m/*.h and s/*.h files we should use.

### Canonicalize the configuration name.

AC_CANONICAL_HOST
canonical=$host
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configuration=$host_alias
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changequote(, )dnl

### If you add support for a new configuration, add code to this
### switch statement to recognize your configuration name and select
### the appropriate operating system and machine description files.

### You would hope that you could choose an m/*.h file pretty much
### based on the machine portion of the configuration name, and an s-
### file based on the operating system portion.  However, it turns out
### that each m/*.h file is pretty manufacturer-specific - for
### example, apollo.h, hp9000s300.h, mega68k, news.h, and tad68k are
### all 68000 machines; mips.h, pmax.h, and news-risc are all MIPS
### machines.  So we basically have to have a special case for each
### configuration name.
###
### As far as handling version numbers on operating systems is
### concerned, make sure things will fail in a fixable way.  If
### /etc/MACHINES doesn't say anything about version numbers, be
### prepared to handle anything reasonably.  If version numbers
### matter, be sure /etc/MACHINES says something about it.
###
### Eric Raymond says we should accept strings like "sysvr4" to mean
### "System V Release 4"; he writes, "The old convention encouraged
### confusion between `system' and `release' levels'."

machine='' opsys='' unported=no
case "${canonical}" in

  ## NetBSD ports
  *-*-netbsd* )
    opsys=netbsd
    case "${canonical}" in
      i[345]86-*-netbsd*) machine=intel386 ;;
      m68k-*-netbsd*)
			# This is somewhat bogus.
			machine=hp9000s300 ;;
      mips-*-netbsd*)	machine=pmax ;;
      ns32k-*-netbsd*)	machine=ns32000 ;;
      sparc-*-netbsd*)	machine=sparc ;;
    esac
  ;;

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  ## Acorn RISCiX:
  arm-acorn-riscix1.1* )
    machine=acorn opsys=riscix1-1
  ;;
  arm-acorn-riscix1.2* | arm-acorn-riscix )
    machine=acorn opsys=riscix1-2
  ;;

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  ## Alliant machines
  ## Strictly speaking, we need the version of the alliant operating
  ## system to choose the right machine file, but currently the
  ## configuration name doesn't tell us enough to choose the right
  ## one; we need to give alliants their own operating system name to
  ## do this right.  When someone cares, they can help us.
  fx80-alliant-* )
    machine=alliant4 opsys=bsd4-2
  ;;
  i860-alliant-* )
    machine=alliant-2800 opsys=bsd4-3
  ;;

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  ## Alpha (DEC) machines.
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  alpha-dec-osf* )
    machine=alpha opsys=osf1
  ;;

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  alpha-*-linux* )
    machine=alpha opsys=linux
  ;;

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  ## Altos 3068
  m68*-altos-sysv* )
    machine=altos opsys=usg5-2
  ;;
    
  ## Amdahl UTS
  580-amdahl-sysv* )
    machine=amdahl opsys=usg5-2-2
  ;;

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  ## Apollo, Domain/OS
  m68*-apollo-* )
    machine=apollo opsys=bsd4-3
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  ;;

  ## AT&T 3b2, 3b5, 3b15, 3b20
  we32k-att-sysv* )
    machine=att3b opsys=usg5-2-2
  ;;

  ## AT&T 3b1 - The Mighty Unix PC!
  m68*-att-sysv* )
    machine=7300 opsys=usg5-2-2
  ;;

  ## Bull dpx20
  rs6000-bull-bosx* )
    machine=ibmrs6000 opsys=aix3-2
  ;;

  ## Bull dpx2
  m68*-bull-sysv3* )
    machine=dpx2 opsys=usg5-3
  ;;

  ## Bull sps7
  m68*-bull-sysv2* )
    machine=sps7 opsys=usg5-2
  ;;

  ## CCI 5/32, 6/32 -- see "Tahoe".

  ## Celerity
  ## I don't know what configuration name to use for this; config.sub
  ## doesn't seem to know anything about it.  Hey, Celerity users, get
  ## in touch with us!
  celerity-celerity-bsd* )
    machine=celerity opsys=bsd4-2
  ;;

  ## Clipper
  ## What operating systems does this chip run that Emacs has been
  ## tested on?
  clipper-* )
    machine=clipper
    ## We'll use the catch-all code at the bottom to guess the
    ## operating system.
  ;;

  ## Convex
  *-convex-bsd* | *-convex-convexos* )
    machine=convex opsys=bsd4-3
    ## Prevents suprious white space in makefiles - d.m.cooke@larc.nasa.gov
    NON_GNU_CPP="cc -E -P"
  ;;

  ## Cubix QBx/386
  i[345]86-cubix-sysv* )
    machine=intel386 opsys=usg5-3
  ;;

  ## Cydra 5
  cydra*-cydrome-sysv* )
    machine=cydra5 opsys=usg5-3
  ;;

  ## Data General AViiON Machines
  m88k-dg-dgux5.4R3* | m88k-dg-dgux5.4.3* )
    machine=aviion opsys=dgux5-4r3
  ;;
  m88k-dg-dgux5.4R2* | m88k-dg-dgux5.4.2* )
    machine=aviion opsys=dgux5-4r2
  ;;
  m88k-dg-dgux* )
    machine=aviion opsys=dgux
  ;;

  ## DECstations
  mips-dec-ultrix[0-3].* | mips-dec-ultrix4.0* | mips-dec-bsd4.2* )
    machine=pmax opsys=bsd4-2
  ;;
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  mips-dec-ultrix4.[12]* | mips-dec-bsd* )
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    machine=pmax opsys=bsd4-3
  ;;
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  mips-dec-ultrix* )
    machine=pmax opsys=ultrix4-3
  ;;
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  mips-dec-osf* )
    machine=pmax opsys=osf1
  ;;
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  mips-dec-mach_bsd4.3* )
    machine=pmax opsys=mach-bsd4-3
  ;;
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  ## Motorola Delta machines
  m68k-motorola-sysv* | m68000-motorola-sysv* )
    machine=delta opsys=usg5-3
    if test -z "`type gnucc | grep 'not found'`"
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    then
      if test -s /etc/167config
      then CC="gnucc -m68040"
      else CC="gnucc -m68881"
      fi 
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    else
      if test -z "`type gcc | grep 'not found'`"
      then CC=gcc
      else CC=cc
      fi
    fi
  ;;
  m88k-motorola-sysv4* )
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    # jbotte@bnr.ca says that UNIX_System_V <hostName> 4.0 R40V4.3 m88k mc88110
    # needs POSIX_SIGNALS and therefore needs usg5-4-2.
    # I hope there are not other 4.0 versions for this machine
    # which really need usg5-4 instead.
    machine=delta88k opsys=usg5-4-2
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  ;;
  m88k-motorola-sysv* | m88k-motorola-m88kbcs* )
    machine=delta88k opsys=usg5-3
  ;;

  ## Dual machines
  m68*-dual-sysv* )
    machine=dual opsys=usg5-2
  ;;
  m68*-dual-uniplus* )
    machine=dual opsys=unipl5-2
  ;;

  ## Elxsi 6400
  elxsi-elxsi-sysv* )
    machine=elxsi opsys=usg5-2
  ;;

  ## Encore machines
  ns16k-encore-bsd* )
    machine=ns16000 opsys=umax
  ;;

  ## The GEC 93 - apparently, this port isn't really finished yet.

  ## Gould Power Node and NP1
  pn-gould-bsd4.2* )
    machine=gould opsys=bsd4-2
  ;;
  pn-gould-bsd4.3* )
    machine=gould opsys=bsd4-3
  ;;
  np1-gould-bsd* )
    machine=gould-np1 opsys=bsd4-3
  ;;

  ## Harris Night Hawk machines running CX/UX (a 5000 looks just like a 4000
  ## as far as Emacs is concerned).
  m88k-harris-cxux* )
    # Build needs to be different on 7.0 and later releases
    case "`uname -r`" in
       [56].[0-9] ) machine=nh4000 opsys=cxux ;;
       [7].[0-9] ) machine=nh4000 opsys=cxux7 ;;
    esac
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    NON_GNU_CPP="/lib/cpp"
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  ;;
  ## Harris ecx or gcx running CX/UX (Series 1200, Series 3000)
  m68k-harris-cxux* )
    machine=nh3000 opsys=cxux
  ;;
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  ## Harris power pc NightHawk running Power UNIX (Series 6000)
  powerpc-harris-powerunix )
    machine=nh6000 opsys=powerunix
    NON_GNU_CPP="cc -Xo -E -P"
  ;;
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  ## Honeywell XPS100
  xps*-honeywell-sysv* )
    machine=xps100 opsys=usg5-2
  ;;

  ## HP 9000 series 200 or 300
  m68*-hp-bsd* )
    machine=hp9000s300 opsys=bsd4-3
  ;;
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  ## HP/UX 7, 8, 9, and 10 are supported on these machines.
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  m68*-hp-hpux* )
    case "`uname -r`" in
      ## Someone's system reports A.B8.05 for this.
      ## I wonder what other possibilities there are.
      *.B8.* ) machine=hp9000s300 opsys=hpux8 ;;
      *.08.* ) machine=hp9000s300 opsys=hpux8 ;;
      *.09.* ) machine=hp9000s300 opsys=hpux9 ;;
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      *.10.* ) machine=hp9000s300 opsys=hpux9shr ;;
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      *) machine=hp9000s300 opsys=hpux ;;
    esac
  ;;

  ## HP 9000 series 700 and 800, running HP/UX
  hppa*-hp-hpux7* )
    machine=hp800 opsys=hpux
  ;;
  hppa*-hp-hpux8* )
    machine=hp800 opsys=hpux8
  ;;
  hppa*-hp-hpux9shr* )
    machine=hp800 opsys=hpux9shr
  ;;
  hppa*-hp-hpux9* )
    machine=hp800 opsys=hpux9
  ;;
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  hppa*-hp-hpux10* )
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    machine=hp800 opsys=hpux10
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  ;;
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  ## HP 9000 series 700 and 800, running HP/UX
  hppa*-hp-hpux* )
    ## Cross-compilation?  Nah!
    case "`uname -r`" in
      ## Someone's system reports A.B8.05 for this.
      ## I wonder what other possibilities there are.
      *.B8.* ) machine=hp800 opsys=hpux8 ;;
      *.08.* ) machine=hp800 opsys=hpux8 ;;
      *.09.* ) machine=hp800 opsys=hpux9 ;;
      *) machine=hp800 opsys=hpux ;;
    esac
  ;;

  ## Orion machines
  orion-orion-bsd* )
    machine=orion opsys=bsd4-2
  ;;
  clipper-orion-bsd* )
    machine=orion105 opsys=bsd4-2
  ;;

  ## IBM machines
  i[345]86-ibm-aix1.1* )
    machine=ibmps2-aix opsys=usg5-2-2
  ;;
  i[345]86-ibm-aix1.[23]* | i[345]86-ibm-aix* )
    machine=ibmps2-aix opsys=usg5-3
  ;;
  i370-ibm-aix*)
    machine=ibm370aix opsys=usg5-3
  ;;
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  rs6000-ibm-aix3.1* | powerpc-ibm-aix3.1*  )
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    machine=ibmrs6000 opsys=aix3-1
  ;;
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  rs6000-ibm-aix3.2.5 | powerpc-ibm-aix3.2.5 )
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    machine=ibmrs6000 opsys=aix3-2-5
  ;;
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  rs6000-ibm-aix4.1* | powerpc-ibm-aix4.1*  )
    machine=ibmrs6000 opsys=aix4-1
  ;;
  rs6000-ibm-aix4* | powerpc-ibm-aix4*  )
    machine=ibmrs6000 opsys=aix4
  ;;
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  rs6000-ibm-aix* | powerpc-ibm-aix* )
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    machine=ibmrs6000 opsys=aix3-2
  ;;
  romp-ibm-bsd4.3* )
    machine=ibmrt opsys=bsd4-3
  ;;	
  romp-ibm-bsd4.2* )
    machine=ibmrt opsys=bsd4-2
  ;;
  romp-ibm-aos4.3* )
    machine=ibmrt opsys=bsd4-3
  ;;	
  romp-ibm-aos4.2* )
    machine=ibmrt opsys=bsd4-2
  ;;
  romp-ibm-aos* )
    machine=ibmrt opsys=bsd4-3
  ;;
  romp-ibm-bsd* )
    machine=ibmrt opsys=bsd4-3
  ;;
  romp-ibm-aix* )
    machine=ibmrt-aix opsys=usg5-2-2
  ;;

  ## Integrated Solutions `Optimum V'
  m68*-isi-bsd4.2* )
    machine=isi-ov opsys=bsd4-2
  ;;
  m68*-isi-bsd4.3* )
    machine=isi-ov opsys=bsd4-3
  ;;

  ## Intel 386 machines where we do care about the manufacturer
  i[345]86-intsys-sysv* )
    machine=is386 opsys=usg5-2-2
  ;;

  ## Prime EXL
  i[345]86-prime-sysv* )
    machine=i386 opsys=usg5-3
  ;;

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  ## Sequent Symmetry running Dynix
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  i[345]86-sequent-bsd* )
    machine=symmetry opsys=bsd4-3
  ;;

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  ## Sequent Symmetry running DYNIX/ptx
  ## Use the old cpp rather than the newer ANSI one.
  i[345]86-sequent-ptx* )
    machine=sequent-ptx opsys=ptx
    NON_GNU_CPP="/lib/cpp"
  ;;

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  ## Unspecified sysv on an ncr machine defaults to svr4.2.
  ## (Plain usg5-4 doesn't turn on POSIX signals, which we need.)
  i[345]86-ncr-sysv* )
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    machine=ncr386 opsys=usg5-4-2
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  ;;

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  ## Intel Paragon OSF/1
  i860-intel-osf1* )
    machine=paragon opsys=osf1 NON_GNU_CPP=/usr/mach/lib/cpp
  ;;

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  ## Intel 860
  i860-*-sysv4* )
    machine=i860 opsys=usg5-4
    NON_GNU_CC="/bin/cc" # Ie, not the one in /usr/ucb/cc.
    NON_GNU_CPP="/usr/ccs/lib/cpp" # cc -E tokenizes macro expansion.
  ;;

  ## Masscomp machines
  m68*-masscomp-rtu* )
    machine=masscomp opsys=rtu
  ;;

  ## Megatest machines
  m68*-megatest-bsd* )
    machine=mega68 opsys=bsd4-2
  ;;

  ## Workstations sold by MIPS
  ## This is not necessarily all workstations using the MIPS processor -
  ## Irises are produced by SGI, and DECstations by DEC.

  ## etc/MACHINES lists mips.h and mips4.h as possible machine files,
  ## and usg5-2-2 and bsd4-3 as possible OS files.  The only guidance
  ## it gives for choosing between the alternatives seems to be "Use
  ## -machine=mips4 for RISCOS version 4; use -opsystem=bsd4-3 with
  ## the BSD world."  I'll assume that these are instructions for
  ## handling two odd situations, and that every other situation
  ## should use mips.h and usg5-2-2, they being listed first.
  mips-mips-usg* )
    machine=mips4
    ## Fall through to the general code at the bottom to decide on the OS.
  ;;
  mips-mips-riscos4* )
    machine=mips4 opsys=bsd4-3
    NON_GNU_CC="cc -systype bsd43"
    NON_GNU_CPP="cc -systype bsd43 -E"
  ;;
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  mips-mips-riscos5* )
    machine=mips4 opsys=riscos5
    NON_GNU_CC="cc -systype bsd43"
    NON_GNU_CPP="cc -systype bsd43 -E"
  ;;
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  mips-mips-bsd* )
    machine=mips opsys=bsd4-3
  ;;
  mips-mips-* )
    machine=mips opsys=usg5-2-2
  ;;

  ## NeXT
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  m68*-next-* | m68k-*-nextstep* )
    machine=m68k opsys=nextstep
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  ;;

  ## The complete machine from National Semiconductor
  ns32k-ns-genix* )
    machine=ns32000 opsys=usg5-2
  ;;

  ## NCR machines
  m68*-ncr-sysv2* | m68*-ncr-sysvr2* )
    machine=tower32 opsys=usg5-2-2
  ;;
  m68*-ncr-sysv3* | m68*-ncr-sysvr3* )
    machine=tower32v3 opsys=usg5-3
  ;;

  ## Nixdorf Targon 31
  m68*-nixdorf-sysv* )
    machine=targon31 opsys=usg5-2-2
  ;;

  ## Nu (TI or LMI)
  m68*-nu-sysv* )
    machine=nu opsys=usg5-2
  ;;

  ## Plexus
  m68*-plexus-sysv* )
    machine=plexus opsys=usg5-2
  ;;

  ## Pyramid machines
  ## I don't really have any idea what sort of processor the Pyramid has,
  ## so I'm assuming it is its own architecture.
  pyramid-pyramid-bsd* )
    machine=pyramid opsys=bsd4-2
  ;;

  ## Sequent Balance
  ns32k-sequent-bsd4.2* )
    machine=sequent opsys=bsd4-2
  ;;
  ns32k-sequent-bsd4.3* )
    machine=sequent opsys=bsd4-3
  ;;

  ## Siemens Nixdorf
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  mips-siemens-sysv* | mips-sni-sysv*)
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    machine=mips-siemens opsys=usg5-4
    NON_GNU_CC=/usr/ccs/bin/cc
    NON_GNU_CPP=/usr/ccs/lib/cpp
  ;;

  ## Silicon Graphics machines
  ## Iris 2500 and Iris 2500 Turbo (aka the Iris 3030)
  m68*-sgi-iris3.5* )
    machine=irist opsys=iris3-5
  ;;
  m68*-sgi-iris3.6* | m68*-sgi-iris*)
    machine=irist opsys=iris3-6
  ;;
  ## Iris 4D
  mips-sgi-irix3* )
    machine=iris4d opsys=irix3-3
  ;;
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  mips-sgi-irix4* )
    machine=iris4d opsys=irix4-0
  ;;
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  mips-sgi-irix6* )
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    machine=iris4d opsys=irix6-0  NON_GNU_CPP=/lib/cpp
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  ;;
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  mips-sgi-irix5.[01]* )
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    machine=iris4d opsys=irix5-0
  ;;
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  mips-sgi-irix5* | mips-sgi-irix* )
    machine=iris4d opsys=irix5-2
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  ;;

  ## SONY machines
  m68*-sony-bsd4.2* )
    machine=news opsys=bsd4-2
  ;;
  m68*-sony-bsd4.3* )
    machine=news opsys=bsd4-3
  ;;
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  m68*-sony-newsos3* | m68*-sony-news3*)
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    machine=news opsys=bsd4-3
  ;;
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  mips-sony-bsd* | mips-sony-newsos4* | mips-sony-news4*)
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    machine=news-risc opsys=bsd4-3
  ;;
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  mips-sony-news* )
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    machine=news-risc opsys=newsos5
  ;;

  ## Stride
  m68*-stride-sysv* )
    machine=stride opsys=usg5-2
  ;;

  ## Suns
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  *-sun-sunos* | *-sun-bsd* | *-sun-solaris* \
    | i[345]86-*-solaris2* | i[345]86-*-sunos5* | powerpc*-*-solaris2* \
    | rs6000-*-solaris2*)
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    case "${canonical}" in
      m68*-sunos1* )	machine=sun1 ;;
      m68*-sunos2* )	machine=sun2 ;;
      m68* )		machine=sun3 ;;
      i[345]86-sun-sunos[34]* )	machine=sun386 ;;
      i[345]86-*-* )     machine=intel386 ;;
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      powerpc* | rs6000* )  machine=rs6000 ;;
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      sparc* )		machine=sparc ;;
      * )		unported=yes ;;
    esac
    case "${canonical}" in
      ## The Sun386 didn't get past 4.0.
      i[345]86-*-sunos4	  ) opsys=sunos4-0 ;;
      *-sunos4.0*	  ) opsys=sunos4-0 ;;
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      *-sunos4.1.[3-9]* | *-sunos4shr*)
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		opsys=sunos4shr
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		NON_GNU_CPP=/usr/lib/cpp
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		;;
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      *-sunos4.1.[3-9]*-noshare )
		opsys=sunos4-1-3
		NON_GNU_CPP=/usr/lib/cpp
		NON_GCC_TEST_OPTIONS=-Bstatic
		GCC_TEST_OPTIONS=-static
		;;
      *-sunos4* | *-sunos )
		opsys=sunos4-1
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		NON_GCC_TEST_OPTIONS=-Bstatic
		GCC_TEST_OPTIONS=-static
		;;
      *-sunos5.3* | *-solaris2.3* )
		opsys=sol2-3
		NON_GNU_CPP=/usr/ccs/lib/cpp
		;;
      *-sunos5.4* | *-solaris2.4* )
		opsys=sol2-4
		NON_GNU_CPP=/usr/ccs/lib/cpp
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		RANLIB="ar -ts"
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		;;
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      *-sunos5.5* | *-solaris2.5* )
		opsys=sol2-5
		NON_GNU_CPP=/usr/ccs/lib/cpp
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		RANLIB="ar -ts"
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		;;
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      *-sunos5* | *-solaris* )
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		opsys=sol2-4
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		NON_GNU_CPP=/usr/ccs/lib/cpp
		;;
      *			  ) opsys=bsd4-2   ;;
    esac
  ;;
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  sparc-*-nextstep* )
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    machine=sparc opsys=nextstep
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  ;;
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  ## Tadpole 68k
  m68*-tadpole-sysv* )
    machine=tad68k opsys=usg5-3
  ;;

  ## Tahoe machines
  tahoe-tahoe-bsd4.2* )
    machine=tahoe opsys=bsd4-2
  ;;
  tahoe-tahoe-bsd4.3* )
    machine=tahoe opsys=bsd4-3
  ;;

  ## Tandem Integrity S2
  mips-tandem-sysv* )
    machine=tandem-s2 opsys=usg5-3
  ;;

  ## Tektronix XD88
  m88k-tektronix-sysv3* )
  machine=tekxd88 opsys=usg5-3
  ;;

  ## Tektronix 16000 box (6130?)
  ns16k-tektronix-bsd* )
    machine=ns16000 opsys=bsd4-2
  ;;
  ## Tektronix 4300
  ## src/m/tek4300.h hints that this is a m68k machine.
  m68*-tektronix-bsd* )
    machine=tek4300 opsys=bsd4-3
  ;;

  ## Titan P2 or P3
  ## We seem to have lost the machine-description file titan.h!
  titan-titan-sysv* )
    machine=titan opsys=usg5-3
  ;;
  
  ## Ustation E30 (SS5E)
  m68*-unisys-uniplus* )
    machine=ustation opsystem=unipl5-2
  ;;

  ## Vaxen.
  vax-dec-* )
    machine=vax
    case "${canonical}" in
      *-bsd4.1* ) 					opsys=bsd4-1 ;;
      *-bsd4.2* | *-ultrix[0-3].* | *-ultrix4.0* )	opsys=bsd4-2 ;;
      *-bsd4.3* | *-ultrix* ) 				opsys=bsd4-3 ;;
      *-sysv[01]* | *-sysvr[01]* ) 			opsys=usg5-0 ;;
      *-sysv2* | *-sysvr2* )				opsys=usg5-2 ;;
      *-vms* ) 						opsys=vms ;;
      * ) 						unported=yes
    esac
  ;;

  ## Whitechapel MG1
  ns16k-whitechapel-* )
    machine=mg1
    ## We don't know what sort of OS runs on these; we'll let the
    ## operating system guessing code below try.
  ;;

  ## Wicat
  m68*-wicat-sysv* )
    machine=wicat opsys=usg5-2
  ;;

  ## Intel 386 machines where we don't care about the manufacturer
  i[345]86-*-* )
    machine=intel386
    case "${canonical}" in
      *-isc1.* | *-isc2.[01]* )	opsys=386-ix ;;
      *-isc2.2* )		opsys=isc2-2 ;;
      *-isc4.0* )		opsys=isc4-0 ;;
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      *-isc4.* )		opsys=isc4-1
				GCC_TEST_OPTIONS=-posix
				NON_GCC_TEST_OPTIONS=-Xp
				;;
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      *-isc* )			opsys=isc3-0 ;;
      *-esix5* )		opsys=esix5r4; NON_GNU_CPP=/usr/lib/cpp ;;
      *-esix* )			opsys=esix ;;
      *-xenix* )		opsys=xenix ;;
      *-linux* )		opsys=linux ;;
      *-sco3.2v4* )		opsys=sco4 ; NON_GNU_CPP=/lib/cpp  ;;
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      *-bsd386* | *-bsdi1* )	opsys=bsd386 ;;
      *-bsdi2* )		opsys=bsdos2 ;;
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      *-386bsd* )	        opsys=386bsd ;;
      *-freebsd* )	        opsys=freebsd ;;
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      *-nextstep* )             opsys=nextstep ;;
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      ## Otherwise, we'll fall through to the generic opsys code at the bottom.
    esac
  ;;

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  ## Linux/68k
  m68k-*-linux* )
    machine=m68k opsys=linux
  ;;

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  * )
    unported=yes
  ;;
esac

### If the code above didn't choose an operating system, just choose
### an operating system based on the configuration name.  You really
### only want to use this when you have no idea what the right
### operating system is; if you know what operating systems a machine
### runs, it's cleaner to make it explicit in the case statement
### above.
if test x"${opsys}" = x; then
  case "${canonical}" in
    *-gnu* )				opsys=gnu ;;
    *-bsd4.[01] )			opsys=bsd4-1 ;;
    *-bsd4.2 )				opsys=bsd4-2 ;;
    *-bsd4.3 )				opsys=bsd4-3 ;;
    *-sysv0 | *-sysvr0 )		opsys=usg5-0 ;;
    *-sysv2 | *-sysvr2 )		opsys=usg5-2 ;;
    *-sysv2.2 | *-sysvr2.2 )		opsys=usg5-2-2 ;;
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    *-sysv3* | *-sysvr3* )		opsys=usg5-3 ;;
    *-sysv4.1* | *-sysvr4.1* )
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	NON_GNU_CPP=/usr/lib/cpp
	opsys=usg5-4 ;;
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    *-sysv4.[2-9]* | *-sysvr4.[2-9]* )
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	if [ x$NON_GNU_CPP = x ]; then
	  NON_GNU_CPP=/usr/ccs/lib/cpp
	fi
	opsys=usg5-4-2 ;;
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    *-sysv4* | *-sysvr4* )		opsys=usg5-4 ;;
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    * )
      unported=yes
    ;;
  esac
fi

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if test "x$RANLIB" = x; then
  RANLIB=ranlib
fi

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changequote([, ])dnl

if test $unported = yes; then
  AC_MSG_ERROR([Emacs hasn't been ported to \`${canonical}' systems.
Check \`etc/MACHINES' for recognized configuration names.])
fi

machfile="m/${machine}.h"
opsysfile="s/${opsys}.h"


#### Choose a compiler.
test -n "$CC" && cc_specified=yes

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# Save the value of CFLAGS that the user specified.
SPECIFIED_CFLAGS="$CFLAGS"

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case ${with_gcc} in
  "yes" ) CC="gcc" GCC=yes ;;
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  "no"  ) : ${CC=cc} ;;
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  * ) AC_PROG_CC
esac

# On Suns, sometimes $CPP names a directory.
if test -n "$CPP" && test -d "$CPP"; then
  CPP=
fi

#### Some systems specify a CPP to use unless we are using GCC.
#### Now that we know whether we are using GCC, we can decide whether
#### to use that one.
if test "x$NON_GNU_CPP" != x && test x$GCC != xyes && test "x$CPP" = x
then
  CPP="$NON_GNU_CPP"
fi

#### Some systems specify a CC to use unless we are using GCC.
#### Now that we know whether we are using GCC, we can decide whether
#### to use that one.
if test "x$NON_GNU_CC" != x && test x$GCC != xyes &&
  test x$cc_specified != xyes
then
  CC="$NON_GNU_CC"
fi

if test x$GCC = xyes && test "x$GCC_TEST_OPTIONS" != x
then
  CC="$CC $GCC_TEST_OPTIONS"
fi  

if test x$GCC = x && test "x$NON_GCC_TEST_OPTIONS" != x
then
  CC="$CC $NON_GCC_TEST_OPTIONS"
fi  

#### Some other nice autoconf tests.  If you add a test here which
#### should make an entry in src/config.h, don't forget to add an
#### #undef clause to src/config.h.in for autoconf to modify.

dnl checks for programs
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AC_PROG_LN_S
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AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_YACC

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dnl checks for Unix variants
AC_AIX

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dnl checks for header files
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AC_CHECK_HEADERS(sys/select.h sys/timeb.h sys/time.h unistd.h utime.h)
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AC_HEADER_STDC
AC_HEADER_TIME
AC_DECL_SYS_SIGLIST
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dnl Some systems have utime.h but don't declare the struct anyplace.
AC_MSG_CHECKING(for struct utimbuf)
AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
#include <sys/time.h>
#include <time.h>
#else
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#else
#include <time.h>
#endif
#endif
#ifdef HAVE_UTIME_H
#include <utime.h>
#endif], [static struct utimbuf x; x.actime = x.modtime;],
  [AC_MSG_RESULT(yes)
   AC_DEFINE(HAVE_STRUCT_UTIMBUF)],
  AC_MSG_RESULT(no))

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dnl checks for typedefs
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AC_TYPE_SIGNAL
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AC_MSG_CHECKING(for struct timeval)
AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
#include <sys/time.h>
#include <time.h>
#else
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#else
#include <time.h>
#endif
#endif], [static struct timeval x; x.tv_sec = x.tv_usec;],
  [AC_MSG_RESULT(yes)
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   HAVE_TIMEVAL=yes
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   AC_DEFINE(HAVE_TIMEVAL)],
  AC_MSG_RESULT(no))

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dnl checks for structure members
AC_STRUCT_TM
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AC_STRUCT_TIMEZONE
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dnl checks for compiler characteristics
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AC_C_CONST
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dnl check for Make feature
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AC_PROG_MAKE_SET
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dnl checks for operating system services
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AC_SYS_LONG_FILE_NAMES
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#### Choose a window system.

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AC_PATH_X
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if test "$no_x" = yes; then
  window_system=none
else
  window_system=x11
fi
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if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
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  LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
  LD_SWITCH_X_SITE_AUX=-R`echo ${x_libraries} | sed -e "s/:/ -R/g"`
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fi
if test "${x_includes}" != NONE && test -n "${x_includes}"; then
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  C_SWITCH_X_SITE=-I`echo ${x_includes} | sed -e "s/:/ -I/g"`
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fi
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if test x"${x_includes}" = x; then
  bitmapdir=/usr/include/X11/bitmaps
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else
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  # accumulate include directories that have X11 bitmap sudirectories
  bmd_acc="dummyval"
  for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
    if test -d "${bmd}/X11/bitmaps"; then
      bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
    elif test -d "${bmd}/bitmaps"; then
      bmd_acc="${bmd_acc}:${bmd}/bitmaps"
    fi
  done
  if test ${bmd_acc} != "dummyval"; then
    bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
  fi
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fi

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case "${window_system}" in
  x11 )
    HAVE_X_WINDOWS=yes
    HAVE_X11=yes
    case "${with_x_toolkit}" in
      athena | lucid ) USE_X_TOOLKIT=LUCID ;;	
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      motif ) USE_X_TOOLKIT=MOTIF ;;	
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dnl      open-look ) USE_X_TOOLKIT=OPEN_LOOK ;;	
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      * ) USE_X_TOOLKIT=none ;;
    esac
  ;;
  none )
    HAVE_X_WINDOWS=no
    HAVE_X11=no
    USE_X_TOOLKIT=none
  ;;
esac
X_TOOLKIT_TYPE=$USE_X_TOOLKIT

### If we're using X11, we should use the X menu package.
HAVE_X_MENU=no
case ${HAVE_X11} in
  yes ) HAVE_X_MENU=yes ;;
esac

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if test "${opsys}" = "hpux9"; then
  case "${x_libraries}" in
    *X11R4* )
      opsysfile="s/hpux9-x11r4.h"
      ;;
  esac
fi

if test "${opsys}" = "hpux9shr"; then
  case "${x_libraries}" in
    *X11R4* )
      opsysfile="s/hpux9shxr4.h"
      ;;
  esac
fi

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#### Extract some information from the operating system and machine files.

AC_CHECKING([the machine- and system-dependent files to find out
 - which libraries the lib-src programs will want, and
 - whether the GNU malloc routines are usable])

### First figure out CFLAGS (which we use for running the compiler here)
### and REAL_CFLAGS (which we use for real compilation).
### The two are the same except on a few systems, where they are made
### different to work around various lossages.  For example,
### GCC 2.5 on Linux needs them to be different because it treats -g
### as implying static linking.

### If the CFLAGS env var is specified, we use that value
### instead of the default.

### It's not important that this name contain the PID; you can't run
### two configures in the same directory and have anything work
### anyway.
tempcname="conftest.c"

echo '
#include "'${srcdir}'/src/'${opsysfile}'"
#include "'${srcdir}'/src/'${machfile}'"
#ifndef LIBS_MACHINE
#define LIBS_MACHINE
#endif
#ifndef LIBS_SYSTEM
#define LIBS_SYSTEM
#endif
#ifndef C_SWITCH_SYSTEM
#define C_SWITCH_SYSTEM
#endif
#ifndef C_SWITCH_MACHINE
#define C_SWITCH_MACHINE
#endif
configure___ libsrc_libs=LIBS_MACHINE LIBS_SYSTEM
configure___ c_switch_system=C_SWITCH_SYSTEM
configure___ c_switch_machine=C_SWITCH_MACHINE

#ifndef LIB_X11_LIB
#define LIB_X11_LIB -lX11
#endif

#ifndef LIBX11_MACHINE
#define LIBX11_MACHINE
#endif

#ifndef LIBX11_SYSTEM
#define LIBX11_SYSTEM
#endif
configure___ LIBX=LIB_X11_LIB LIBX11_MACHINE LIBX11_SYSTEM

#ifdef UNEXEC
configure___ unexec=UNEXEC
#else
configure___ unexec=unexec.o
#endif

#ifdef SYSTEM_MALLOC
configure___ system_malloc=yes
#else
configure___ system_malloc=no
#endif

#ifndef C_DEBUG_SWITCH
#define C_DEBUG_SWITCH -g
#endif

#ifndef C_OPTIMIZE_SWITCH
#define C_OPTIMIZE_SWITCH -O
#endif

#ifdef THIS_IS_CONFIGURE

/* Get the CFLAGS for tests in configure.  */
#ifdef __GNUC__
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configure___ CFLAGS=C_DEBUG_SWITCH C_OPTIMIZE_SWITCH '${SPECIFIED_CFLAGS}'
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#else
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configure___ CFLAGS=C_DEBUG_SWITCH '${SPECIFIED_CFLAGS}'
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#endif

#else /* not THIS_IS_CONFIGURE */

/* Get the CFLAGS for real compilation.  */
#ifdef __GNUC__
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configure___ REAL_CFLAGS=C_DEBUG_SWITCH C_OPTIMIZE_SWITCH '${SPECIFIED_CFLAGS}'
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#else
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configure___ REAL_CFLAGS=C_DEBUG_SWITCH '${SPECIFIED_CFLAGS}'
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#endif

#endif /* not THIS_IS_CONFIGURE */
' > ${tempcname}

# The value of CPP is a quoted variable reference, so we need to do this
# to get its actual value...
CPP=`eval "echo $CPP"`
changequote(, )dnl
eval `${CPP} -Isrc ${tempcname} \
       | sed -n -e 's/^configure___ \([^=]*=\)\(.*\)$/\1"\2"/p'`
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if test "x$SPECIFIED_CFLAGS" = x; then
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  eval `${CPP} -Isrc -DTHIS_IS_CONFIGURE ${tempcname} \
	 | sed -n -e 's/^configure___ \([^=]*=\)\(.*\)$/\1"\2"/p'`
else
  REAL_CFLAGS="$CFLAGS"
fi
changequote([, ])dnl
rm ${tempcname}

### Compute the unexec source name from the object name.
UNEXEC_SRC="`echo ${unexec} | sed 's/\.o/.c/'`"

# Do the opsystem or machine files prohibit the use of the GNU malloc?
# Assume not, until told otherwise.
GNU_MALLOC=yes
if test "${system_malloc}" = "yes"; then
  GNU_MALLOC=no
  GNU_MALLOC_reason="
  (The GNU allocators don't work with this system configuration.)"
fi

if test x"${REL_ALLOC}" = x; then
  REL_ALLOC=${GNU_MALLOC}
fi

LISP_FLOAT_TYPE=yes


#### Add the libraries to LIBS and check for some functions.

CPPFLAGS="$c_switch_system $c_switch_machine $CPPFLAGS"
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LIBS="$libsrc_libs $LIBS"
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dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
AC_CHECK_LIB(dnet, dnet_ntoa)
dnl This causes -lresolv to get used in subsequent tests,
dnl which causes failures on some systems such as HPUX 9.
dnl AC_CHECK_LIB(resolv, gethostbyname)

dnl FIXME replace main with a function we actually want from this library.
AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")

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AC_CHECK_LIB(pthreads, cma_open)
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AC_MSG_CHECKING(for XFree86)
if test -d /usr/X386/include; then
  HAVE_XFREE386=yes
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  : ${C_SWITCH_X_SITE="-I/usr/X386/include"}
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else
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  HAVE_XFREE386=no
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fi
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AC_MSG_RESULT($HAVE_XFREE386)
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# Change CFLAGS temporarily so that C_SWITCH_X_SITE gets used
# for the tests that follow.  We set it back to REAL_CFLAGS later on.
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if test "${HAVE_X11}" = "yes"; then
  DEFS="$C_SWITCH_X_SITE $DEFS"
  LIBS="$LD_SWITCH_X_SITE $LIBX $LIBS"
  CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
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  if test "${opsys}" = "linux"; then
    AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
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    AC_TRY_LINK([],
     [XOpenDisplay ("foo");],
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     [xlinux_first_failure=no],
     [xlinux_first_failure=yes])
    if test "${xlinux_first_failure}" = "yes"; then
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      OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
      OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
      OLD_CPPFLAGS="$CPPFLAGS"
      OLD_LIBS="$LIBS"
      LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
      C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
      CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
      LIBS="$LIBS -b i486-linuxaout"
      AC_TRY_LINK([],
       [XOpenDisplay ("foo");],
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       [xlinux_second_failure=no],
       [xlinux_second_failure=yes])
      if test "${xlinux_second_failure}" = "yes"; then
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	# If we get the same failure with -b, there is no use adding -b.
	# So take it out.  This plays safe.
	LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
	C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
	CPPFLAGS="$OLD_CPPFLAGS"
	LIBS="$OLD_LIBS"
        AC_MSG_RESULT(no)
      else
        AC_MSG_RESULT(yes)
      fi
    else
      AC_MSG_RESULT(no)
    fi
  fi

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  AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
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XScreenNumberOfScreen XSetWMProtocols)
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  AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
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fi

if test "${USE_X_TOOLKIT}" != "none"; then
  AC_MSG_CHECKING(X11 toolkit version)
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  AC_TRY_LINK([#include <X11/Intrinsic.h>],
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[#if XtSpecificationRelease < 6
fail;
#endif
], [AC_MSG_RESULT(6)
    AC_DEFINE(HAVE_X11XTR6)],
   [AC_MSG_RESULT(not 6)])
fi

# If netdb.h doesn't declare h_errno, we must declare it by hand.
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AC_MSG_CHECKING(whether netdb declares h_errno)
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AC_TRY_LINK([#include <netdb.h>],
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  [return h_errno;],
  [AC_MSG_RESULT(yes)
   AC_DEFINE(HAVE_H_ERRNO)],
  [AC_MSG_RESULT(no)])
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AC_FUNC_ALLOCA
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# fmod, logb, and frexp are found in -lm on most systems.
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# On HPUX 9.01, -lm does not contain logb, so check for sqrt.
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AC_CHECK_LIB(m, sqrt(0.0) + t)
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AC_CHECK_FUNCS(gettimeofday gethostname dup2 rename closedir mkdir rmdir \
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random lrand48 bcopy bcmp logb frexp fmod ftime res_init setsid \
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strerror fpathconf select mktime eaccess getpagesize tzset)

AC_MSG_CHECKING(whether localtime caches TZ)
AC_CACHE_VAL(emacs_cv_localtime_cache,
[if test $ac_cv_func_tzset = yes; then
AC_TRY_RUN([#include <time.h>
#if STDC_HEADERS
# include <stdlib.h>
#endif
main()
{
  time_t now = time ((time_t *) 0);
  int hour;
  if (putenv ("TZ=GMT0") != 0)
    exit (1);
  hour = localtime (&now)->tm_hour;
  if (putenv ("TZ=PST8") != 0)
    exit (1);
  exit (localtime (&now)->tm_hour == hour);
}], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
[# If we have tzset, assume the worst when cross-compiling.
emacs_cv_localtime_cache=yes])
else
	# If we lack tzset, report that localtime does not cache TZ,
	# since we can't invalidate the cache if we don't have tzset.
	emacs_cv_localtime_cache=no
fi])dnl
AC_MSG_RESULT($emacs_cv_localtime_cache)
if test $emacs_cv_localtime_cache = yes; then
  AC_DEFINE(LOCALTIME_CACHE)
fi
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if test "x$HAVE_TIMEVAL" = xyes; then
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AC_MSG_CHECKING(whether gettimeofday can't accept two arguments)
AC_TRY_LINK([
#ifdef TIME_WITH_SYS_TIME
#include <sys/time.h>
#include <time.h>
#else
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#else
#include <time.h>
#endif
#endif
  ],
  [
  struct timeval time;
  struct timezone dummy;
  gettimeofday (&time, &dummy);
],
  [AC_MSG_RESULT(no)],
  [AC_MSG_RESULT(yes)
   AC_DEFINE(GETTIMEOFDAY_ONE_ARGUMENT)])
fi

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ok_so_far=yes
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AC_CHECK_FUNC(socket, , ok_so_far=no)
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if test $ok_so_far = yes; then
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  AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
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fi
if test $ok_so_far = yes; then
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  AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
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fi
if test $ok_so_far = yes; then
  AC_DEFINE(HAVE_INET_SOCKETS)
fi

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if test -f /usr/lpp/X11/bin/smt.exp; then
  AC_DEFINE(HAVE_AIX_SMT_EXP)
fi

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# Set up the CFLAGS for real compilation, so we can substitute it.
CFLAGS="$REAL_CFLAGS"

changequote(, )dnl
#### Find out which version of Emacs this is.
version=`grep 'defconst[	 ]*emacs-version' ${srcdir}/lisp/version.el \
	 | sed -e 's/^[^"]*"\([^"]*\)".*$/\1/'`
changequote([, ])dnl
if test x"${version}" = x; then
  AC_MSG_ERROR(can't find current emacs version in \`${srcdir}/lisp/version.el'.)
fi

### Specify what sort of things we'll be editing into Makefile and config.h.
### Use configuration here uncanonicalized to avoid exceeding size limits.
AC_SUBST(version)
AC_SUBST(configuration)
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AC_SUBST(canonical)
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AC_SUBST(srcdir)
AC_SUBST(prefix)
AC_SUBST(exec_prefix)
AC_SUBST(bindir)
AC_SUBST(datadir)
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AC_SUBST(sharedstatedir)
AC_SUBST(libexecdir)
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AC_SUBST(mandir)
AC_SUBST(infodir)
AC_SUBST(lispdir)
AC_SUBST(locallisppath)
AC_SUBST(lisppath)
AC_SUBST(etcdir)
AC_SUBST(lockdir)
AC_SUBST(archlibdir)
AC_SUBST(docdir)
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AC_SUBST(bitmapdir)
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AC_SUBST(c_switch_system)
AC_SUBST(c_switch_machine)
AC_SUBST(LD_SWITCH_X_SITE)
AC_SUBST(LD_SWITCH_X_SITE_AUX)
AC_SUBST(C_SWITCH_X_SITE)
AC_SUBST(CFLAGS)
AC_SUBST(X_TOOLKIT_TYPE)
AC_SUBST(machfile)
AC_SUBST(opsysfile)
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AC_SUBST(RANLIB)
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AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION,  "${canonical}")
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AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}")
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AC_DEFINE_UNQUOTED(config_machfile,  "${machfile}")
AC_DEFINE_UNQUOTED(config_opsysfile, "${opsysfile}")
AC_DEFINE_UNQUOTED(LD_SWITCH_X_SITE, ${LD_SWITCH_X_SITE})
AC_DEFINE_UNQUOTED(LD_SWITCH_X_SITE_AUX, ${LD_SWITCH_X_SITE_AUX})
AC_DEFINE_UNQUOTED(C_SWITCH_X_SITE,  ${C_SWITCH_X_SITE})
AC_DEFINE_UNQUOTED(UNEXEC_SRC,       ${UNEXEC_SRC})

if test "${HAVE_X_WINDOWS}" = "yes" ; then
  AC_DEFINE(HAVE_X_WINDOWS)
fi
if test "${USE_X_TOOLKIT}" != "none" ; then
  AC_DEFINE(USE_X_TOOLKIT)
fi
if test "${HAVE_X11}" = "yes" ; then
  AC_DEFINE(HAVE_X11)
fi
if test "${HAVE_XFREE386}" = "yes" ; then
  AC_DEFINE(HAVE_XFREE386)
fi
if test "${HAVE_X_MENU}" = "yes" ; then
  AC_DEFINE(HAVE_X_MENU)
fi
if test "${GNU_MALLOC}" = "yes" ; then
  AC_DEFINE(GNU_MALLOC)
fi
if test "${REL_ALLOC}" = "yes" ; then
  AC_DEFINE(REL_ALLOC)
fi
if test "${LISP_FLOAT_TYPE}" = "yes" ; then
  AC_DEFINE(LISP_FLOAT_TYPE)
fi

#### Report on what we decided to do.
echo "
Configured for \`${canonical}'.

  Where should the build process find the source code?    ${srcdir}
  What operating system and machine description files should Emacs use?
        \`${opsysfile}' and \`${machfile}'
  What compiler should emacs be built with?               ${CC} ${CFLAGS}
  Should Emacs use the GNU version of malloc?             ${GNU_MALLOC}${GNU_MALLOC_reason}
  Should Emacs use the relocating allocator for buffers?  ${REL_ALLOC}
  What window system should Emacs use?                    ${window_system}
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  What toolkit should Emacs use?                          ${USE_X_TOOLKIT}"

if test -n "${x_includes}"; then
echo "  Where do we find X Windows header files?                ${x_includes}"
else
echo "  Where do we find X Windows header files?                Standard dirs"
fi
if test -n "${x_libraries}"; then
echo "  Where do we find X Windows libraries?                   ${x_libraries}"
else
echo "  Where do we find X Windows libraries?                   Standard dirs"
fi
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echo
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# Remove any trailing slashes in these variables.
changequote(, )dnl
test "${prefix}" != NONE &&
  prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
test "${exec_prefix}" != NONE &&
  exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`
changequote([, ])dnl

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AC_OUTPUT(Makefile lib-src/Makefile.c:lib-src/Makefile.in oldXMenu/Makefile \
	man/Makefile lwlib/Makefile src/Makefile.c:src/Makefile.in, [
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### Make the necessary directories, if they don't exist.
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for dir in cpp etc ; do
  test -d ${dir} || mkdir ${dir}
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done

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# Build src/Makefile from ${srcdir}/src/Makefile.c
# and lib-src/Makefile from ${srcdir}/lib-src/Makefile.c
# This must be done after src/config.h is built, since we rely on that file.
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changequote(, )dnl The horror, the horror.
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# Now get this: Some word that is part of the ${srcdir} directory name
# or the ${configuration} value might, just might, happen to be an
# identifier like `sun4' or `i386' or something, and be predefined by
# the C preprocessor to some helpful value like 1, or maybe the empty
# string.  Needless to say consequent macro substitutions are less
# than conducive to the makefile finding the correct directory.
undefs="`echo $top_srcdir $configuration $canonical |
sed -e 's/[^a-zA-Z0-9_]/ /g' -e 's/^/ /' -e 's/  *$//' \
    -e 's/  */ -U/g' -e 's/-U[0-9][^ ]*//g' \
`"
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changequote([, ])dnl
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echo creating lib-src/Makefile
( cd lib-src
  rm -f junk.c junk1.c junk2.c
  sed -e '/start of cpp stuff/q' \
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      < Makefile.c > junk1.c
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  sed -e '1,/start of cpp stuff/d'\
      -e 's@/\*\*/#\(.*\)$@/* \1 */@' \
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      < Makefile.c > junk.c
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  $CPP $undefs -I. -I$top_srcdir/src $CPPFLAGS junk.c | \
      sed -e 's/^ /	/' -e '/^#/d' -e '/^[ 	]*$/d' > junk2.c
  cat junk1.c junk2.c > Makefile.new
  rm -f junk.c junk1.c junk2.c
  chmod 444 Makefile.new
  mv -f Makefile.new Makefile
)

echo creating src/Makefile
( cd src
  rm -f junk.c junk1.c junk2.c
  sed -e '/start of cpp stuff/q' \
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      < Makefile.c > junk1.c
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  sed -e '1,/start of cpp stuff/d'\
      -e 's@/\*\*/#\(.*\)$@/* \1 */@' \
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      < Makefile.c > junk.c
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  $CPP $undefs -I. -I$top_srcdir/src $CPPFLAGS junk.c | \
      sed -e 's/^ /	/' -e '/^#/d' -e '/^[ 	]*$/d' > junk2.c
  cat junk1.c junk2.c > Makefile.new
  rm -f junk.c junk1.c junk2.c
  chmod 444 Makefile.new
  mv -f Makefile.new Makefile
)
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if test ! -f src/.gdbinit && test -f $top_srcdir/src/.gdbinit; then
  echo creating src/.gdbinit
  echo source $top_srcdir/src/.gdbinit > src/.gdbinit
fi

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], [CPP="$CPP" CPPFLAGS="$CPPFLAGS"])