root/trunk/configure.in

dnl  Autoconf script for GNU Emacs
dnl To rebuild the `configure' script from this, execute the command
dnl     autoconf
dnl in the directory containing this script.
dnl
dnl  Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2003,
dnl    2004, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
dnl
dnl  This file is part of GNU Emacs.
dnl
dnl  GNU Emacs is free software; you can redistribute it and/or modify
dnl  it under the terms of the GNU General Public License as published by
dnl  the Free Software Foundation; either version 3, or (at your option)
dnl  any later version.
dnl
dnl  GNU Emacs is distributed in the hope that it will be useful,
dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
dnl  GNU General Public License for more details.
dnl
dnl  You should have received a copy of the GNU General Public License
dnl  along with GNU Emacs; see the file COPYING.  If not, write to the
dnl  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
dnl  Boston, MA 02110-1301, USA.

AC_PREREQ(2.61)dnl
AC_INIT(src/lisp.h)
AC_CONFIG_HEADER(src/config.h:src/config.in)

dnl Support for --program-prefix, --program-suffix and
dnl --program-transform-name options
AC_ARG_PROGRAM

lispdir='${datadir}/emacs/${version}/lisp'
locallisppath='${datadir}/emacs/${version}/site-lisp:'\
'${datadir}/emacs/site-lisp'
lisppath='${locallisppath}:${lispdir}:${datadir}/emacs/${version}/leim'
etcdir='${datadir}/emacs/${version}/etc'
archlibdir='${libexecdir}/emacs/${version}/${configuration}'
docdir='${datadir}/emacs/${version}/etc'
gamedir='${localstatedir}/games/emacs'

gameuser=games

AC_ARG_WITH(gcc,
[  --without-gcc           don't use GCC to compile Emacs if GCC is found])
AC_ARG_WITH(pop,
[  --without-pop           don't support POP mail retrieval with movemail],
[if test "$withval" = yes; then
   AC_DEFINE(MAIL_USE_POP)
else :
fi],
AC_DEFINE(MAIL_USE_POP))
AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
AC_ARG_WITH(kerberos,
[  --with-kerberos         support Kerberos-authenticated POP],
[if test "$withval" = yes; then
   AC_DEFINE(KERBEROS)
fi])
AH_TEMPLATE(KERBEROS,
            [Define to support Kerberos-authenticated POP mail retrieval.])dnl
AC_ARG_WITH(kerberos5,
[  --with-kerberos5        support Kerberos version 5 authenticated POP],
[if test "${with_kerberos5+set}" = set; then
  if test "${with_kerberos+set}" != set; then
    with_kerberos=yes
    AC_DEFINE(KERBEROS)
  fi
  AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
fi])
AC_ARG_WITH(hesiod,
[  --with-hesiod           support Hesiod to get the POP server host],
[if test "$withval" = yes; then
  AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
fi])

AC_ARG_WITH(sound,
[  --without-sound         don't compile with sound support])

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.
AC_ARG_WITH(x-toolkit,
[  --with-x-toolkit=KIT    use an X toolkit
                              (KIT = yes/lucid/athena/motif/gtk/no)],
[         case "${withval}" in
            y | ye | yes )      val=athena ;;
            n | no )            val=no  ;;
            l | lu | luc | luci | lucid )       val=lucid ;;
            a | at | ath | athe | athen | athena )      val=athena ;;
            m | mo | mot | moti | motif )       val=motif ;;
            g | gt | gtk  )     val=gtk ;;
dnl These don't currently work.
dnl         o | op | ope | open | open- | open-l | open-lo \
dnl             | open-loo | open-look )        val=open-look ;;
            * )
dnl AC_MSG_ERROR([the `--with-x-toolkit' option is supposed to have a value
dnl which is `yes', `no', `lucid', `athena', `motif' or `open-look'.])
AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid\;
this option's value should be `yes', `no', `lucid', `athena', `motif' or `gtk'.
Currently, `yes', `athena' and `lucid' are synonyms.])
            ;;
          esac
          with_x_toolkit=$val
])
AC_ARG_WITH(xpm,
[  --with-xpm              use -lXpm for displaying XPM images])
AC_ARG_WITH(jpeg,
[  --with-jpeg             use -ljpeg for displaying JPEG images])
AC_ARG_WITH(tiff,
[  --with-tiff             use -ltiff for displaying TIFF images])
AC_ARG_WITH(gif,
[  --with-gif              use -lungif for displaying GIF images])
AC_ARG_WITH(png,
[  --with-png              use -lpng for displaying PNG images])
AC_ARG_WITH(gtk,
[  --with-gtk              use GTK (same as --with-x-toolkit=gtk)])
AC_ARG_WITH(pkg-config-prog,
[  --with-pkg-config-prog  Path to pkg-config to use for finding GTK])
AC_ARG_WITH(toolkit-scroll-bars,
[  --without-toolkit-scroll-bars
                          don't use Motif or Xaw3d scroll bars])
AC_ARG_WITH(xim,
[  --without-xim           don't use X11 XIM])
AC_ARG_WITH(carbon,
[  --without-carbon        don't use Carbon GUI on Mac OS X])
AC_ARG_ENABLE(carbon-app,
[[  --enable-carbon-app[=DIR]  [DIR=/Application]
                          specify install directory for Emacs.app on Mac OS X]],
[ carbon_appdir_x=${enableval}])

AC_ARG_ENABLE(asserts,
[  --enable-asserts        compile code with asserts enabled],
      USE_XASSERTS=$enableval,
      USE_XASSERTS=no)

AC_ARG_ENABLE(maintainer-mode,
[  --enable-maintainer-mode enable make rules and dependencies not useful
                          (and sometimes confusing) to the casual installer],
      USE_MAINTAINER_MODE=$enableval,
      USE_MAINTAINER_MODE=no)
if test $USE_MAINTAINER_MODE = yes; then
  MAINT=
else
  MAINT=#
fi
AC_SUBST(MAINT)

AC_ARG_ENABLE(locallisppath,
[  --enable-locallisppath=PATH
                          directories Emacs should search for lisp files
                          specific to this site],
if test "${enableval}" = "no"; then
  locallisppath=
elif test "${enableval}" != "yes"; then
  locallisppath=${enableval}
fi)

#### Make srcdir absolute, if it isn't already.  It's important to
#### avoid running the path through pwd unnecessarily, since pwd can
#### give you automounter prefixes, which can go away.  We do all this
#### so Emacs can find its files when run uninstalled.
## Make sure CDPATH doesn't affect cd (in case PWD is relative).
unset CDPATH
case "${srcdir}" in
  /* ) ;;
  . )
    ## We may be able to use the $PWD environment variable to make this
    ## absolute.  But sometimes PWD is inaccurate.
    ## Note: we used to use ${PWD} at the end instead of `pwd`,
    ## but that tested only for a well-formed and valid PWD,
    ## it did not object when PWD was well-formed and valid but just wrong.
    if test ".${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.]])
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=$host
configuration=${host_alias-$host}

dnl This used to use changequote, but, apart from `changequote is evil'
dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
dnl the great gob of text.  Thus it's not processed for possible expansion.
dnl Just make sure the brackets remain balanced.
dnl
dnl Since Emacs can't find matching pairs of quotes, boundaries are
dnl indicated by comments.
dnl quotation begins
[

### 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

  ## FreeBSD ports
  *-*-freebsd* )
    opsys=freebsd
    case "${canonical}" in
      alpha*-*-freebsd*)        machine=alpha ;;
      arm*-*-freebsd*)          machine=arm ;;
      ia64-*-freebsd*)          machine=ia64 ;;
      sparc64-*-freebsd*)       machine=sparc ;;
      powerpc-*-freebsd*)       machine=macppc ;;
      i[3456]86-*-freebsd*)     machine=intel386 ;;
      amd64-*-freebsd*|x86_64-*-freebsd*) machine=amdx86-64 ;;
    esac
  ;;

  ## FreeBSD kernel + glibc based userland
  *-*-kfreebsd*gnu* )
    opsys=gnu-kfreebsd
    case "${canonical}" in
      alpha*-*-kfreebsd*)       machine=alpha ;;
      ia64-*-kfreebsd*)         machine=ia64 ;;
      sparc64-*-kfreebsd*)      machine=sparc ;;
      powerpc-*-kfreebsd*)      machine=macppc ;;
      i[3456]86-*-kfreebsd*)    machine=intel386 ;;
      amd64-*-kfreebsd*|x86_64-*-kfreebsd*) machine=amdx86-64 ;;
    esac
  ;;

  ## NetBSD ports
  *-*-netbsd* )
    opsys=netbsd
    if test -f /usr/lib/crti.o; then]
dnl The close and open brackets here are because this section is quoted --
dnl see the `changequote' comment above.
      AC_DEFINE(HAVE_CRTIN, [], [Define to 1 if you have /usr/lib/crti.o.])
[   fi

    case "${canonical}" in
      alpha*-*-netbsd*) machine=alpha ;;
      i[3456]86-*-netbsd*) machine=intel386 ;;
      m68k-*-netbsd*)
                        # This is somewhat bogus.
                        machine=hp9000s300 ;;
      mips-*-netbsd*)   machine=pmax ;;
      mipsel-*-netbsd*) machine=pmax ;;
      mipseb-*-netbsd*) machine=pmax ;;
      ns32k-*-netbsd*)  machine=ns32000 ;;
      powerpc-*-netbsd*) machine=macppc ;;
      sparc*-*-netbsd*) machine=sparc ;;
      vax-*-netbsd*)    machine=vax ;;
      arm-*-netbsd*)    machine=arm ;;
      x86_64-*-netbsd*) machine=amdx86-64 ;;
      hppa-*-netbsd*)   machine=hp800 ;;
      shle-*-netbsd*)   machine=sh3el ;;
    esac
  ;;

  ## OpenBSD ports
  *-*-openbsd* )
    opsys=openbsd
    case "${canonical}" in
      alpha*-*-openbsd*)        machine=alpha ;;
      arm-*-openbsd*)          machine=arm ;;
      hppa-*-openbsd*)         machine=hp9000s300 ;;
      i386-*-openbsd*)         machine=intel386 ;;
      m68k-*-openbsd*)         machine=hp9000s300 ;;
      m88k-*-openbsd*)         machine=aviion ;;
      mips64-*-openbsd*)       machine=mips64 ;;
      powerpc-*-openbsd*)      machine=macppc ;;
      sh-*-openbsd*)           machine=sh3el ;;
      sparc*-*-openbsd*)       machine=sparc ;;
      vax-*-openbsd*)          machine=vax ;;
      x86_64-*-openbsd*)       machine=amdx86-64 ;;
    esac
  ;;

  ## LynxOS ports
  *-*-lynxos* )
    opsys=lynxos
    case "${canonical}" in
      i[3456]86-*-lynxos*) machine=intel386 ;;
      powerpc-*-lynxos*) machine=powerpc ;;
    esac
  ;;

  ## Acorn RISCiX:
  arm-acorn-riscix1.1* )
    machine=acorn opsys=riscix1-1
  ;;
  arm-acorn-riscix1.2* | arm-acorn-riscix )
    ## This name is riscix12 instead of riscix1.2
    ## to avoid a file name conflict on MSDOS.
    machine=acorn opsys=riscix12
  ;;

  ## BSDI ports
  *-*-bsdi* )
    opsys=bsdi
    case "${canonical}" in
      i[345]86-*-bsdi*) machine=intel386 ;;
      sparc-*-bsdi*)  machine=sparc ;;
      powerpc-*-bsdi*)  machine=macppc ;;
    esac
    case "${canonical}" in
      *-*-bsd386* | *-*-bsdi1* )        opsys=bsd386 ;;
      *-*-bsdi2.0* )            opsys=bsdos2 ;;
      *-*-bsdi2* )              opsys=bsdos2-1 ;;
      *-*-bsdi3* )              opsys=bsdos3 ;;
      *-*-bsdi[45]* )           opsys=bsdos4 ;;
    esac
  ;;

  ## 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
  ;;

  ## Alpha (DEC) machines.
  alpha*-dec-osf* )
    machine=alpha opsys=osf1
    # This is needed to find X11R6.1 libraries for certain tests.
    NON_GCC_LINK_TEST_OPTIONS=-Wl,-rpath,/usr/X11R6/lib
    GCC_LINK_TEST_OPTIONS=-Wl,-rpath,/usr/X11R6/lib
    # NON_GNU_CPP is necessary on 5.0 to avoid mangling src/Makefile
    # due to non-traditional preprocessing with the current compiler
    # defaults.  OSF 4 can also have that compiler version, and there
    # seems always to have been a usable /usr/bin/cpp.
    NON_GNU_CPP=/usr/bin/cpp
    case "${canonical}" in
    alpha*-dec-osf[5-9]*)
      opsys=osf5-0 ;;
    esac
  ;;

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

  arm*-*-linux-gnu* )
    machine=arm opsys=gnu-linux
  ;;

  ## Altos 3068
  m68*-altos-sysv* )
    machine=altos opsys=usg5-2
  ;;

  ## Amdahl UTS
  580-amdahl-sysv* )
    machine=amdahl opsys=usg5-2-2
  ;;

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

  ## Apple Darwin / Mac OS X
  *-apple-darwin* )
    case "${canonical}" in
      i[3456]86-* )  machine=intel386 ;;
      powerpc-* )    machine=powermac ;;
      * )            unported=yes ;;
    esac
    opsys=darwin
    # Define CPP as follows to make autoconf work correctly.
    CPP="${CC-cc} -E -no-cpp-precomp"
    # Use fink packages if available.
    if test -d /sw/include && test -d /sw/lib; then
      GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
      CPP="${CPP} ${GCC_TEST_OPTIONS}"
      NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
    fi
  ;;

  ## 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.
  ;;

  ## Compaq Nonstop
  mips-compaq-nonstopux* )
    machine=nonstopux opsys=nonstopux
    ;;

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

  ## Cubix QBx/386
  i[3456]86-cubix-sysv* )
    machine=intel386 opsys=usg5-3
  ;;

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

  ## Data General AViiON Machines
  ## DG changed naming conventions with the release of 5.4.4.10, they
  ## dropped the initial 5.4 but left the intervening R.  Because of the
  ## R this shouldn't conflict with older versions of the OS (which I
  ## think were named like dgux4.*). In addition, DG new AViiONs series
  ## uses either Motorola M88k or Intel Pentium CPUs.
  m88k-dg-dguxR4.* | m88k-dg-dgux4* )
    machine=aviion opsys=dgux4
  ;;
  m88k-dg-dgux5.4R3* | m88k-dg-dgux5.4.3* )
    ## This name is dgux5-4-3 instead of dgux5-4r3
    ## to avoid a file name conflict on MSDOS.
    machine=aviion opsys=dgux5-4-3
  ;;
  m88k-dg-dgux5.4R2* | m88k-dg-dgux5.4.2* )
    machine=aviion opsys=dgux5-4r2
  ;;
  m88k-dg-dgux* )
    machine=aviion opsys=dgux
  ;;

  ## Data General AViiON Intel (x86) Machines
  ## Exists from 5.4.3 (current i586-dg-dguxR4.11)
  ## Ehud Karni, 1998-may-30, ehud@unix.simonwiesel.co.il
  i[345]86-dg-dguxR4* )
    machine=aviion-intel opsys=dgux4
  ;;

  ## DECstations
  mips-dec-ultrix[0-3].* | mips-dec-ultrix4.0* | mips-dec-bsd4.2* )
    machine=pmax opsys=bsd4-2
  ;;
  mips-dec-ultrix4.[12]* | mips-dec-bsd* )
    machine=pmax opsys=bsd4-3
  ;;
  mips-dec-ultrix* )
    machine=pmax opsys=ultrix4-3
  ;;
  mips-dec-osf* )
    machine=pmax opsys=osf1
  ;;
  mips-dec-mach_bsd4.3* )
    machine=pmax opsys=mach-bsd4-3
  ;;

  ## Motorola Delta machines
  m68k-motorola-sysv* | m68000-motorola-sysv* )
    machine=delta opsys=usg5-3
    if test -z "`type gnucc | grep 'not found'`"
    then
      if test -s /etc/167config
      then CC="gnucc -m68040"
      else CC="gnucc -m68881"
      fi
    else
      if test -z "`type gcc | grep 'not found'`"
      then CC=gcc
      else CC=cc
      fi
    fi
  ;;
  m88k-motorola-sysv4* )
    # 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
  ;;
  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 63 - apparently, this port isn't really finished yet.
  #  I'm sure we finished off the last of the machines, though.  -- fx

  ## 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
    NON_GNU_CPP="/lib/cpp"
  ;;
  ## Harris ecx or gcx running CX/UX (Series 1200, Series 3000)
  m68k-harris-cxux* )
    machine=nh3000 opsys=cxux
  ;;
  ## Harris power pc NightHawk running Power UNIX (Series 6000)
  powerpc-harris-powerunix )
    machine=nh6000 opsys=powerunix
    NON_GNU_CPP="cc -Xo -E -P"
  ;;
  ## SR2001/SR2201 running HI-UX/MPP
  hppa1.1-hitachi-hiuxmpp* )
    machine=sr2k opsys=hiuxmpp
  ;;
  hppa1.1-hitachi-hiuxwe2* )
    machine=sr2k opsys=hiuxwe2
  ;;
  ## Honeywell XPS100
  xps*-honeywell-sysv* )
    machine=xps100 opsys=usg5-2
  ;;

  ## HP 9000 series 200 or 300
  m68*-hp-bsd* )
    machine=hp9000s300 opsys=bsd4-3
  ;;
  ## HP/UX 7, 8, 9, and 10 are supported on these machines.
  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 ;;
      *.1[0-9].* ) machine=hp9000s300 opsys=hpux9shr ;;
      *) 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
  ;;
  hppa*-hp-hpux10.2* )
    machine=hp800 opsys=hpux10-20
  ;;
  hppa*-hp-hpux10* )
    machine=hp800 opsys=hpux10
  ;;
  hppa*-hp-hpux1[1-9]* )
    machine=hp800 opsys=hpux11
    CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
  ;;

  hppa*-*-linux-gnu* )
    machine=hp800 opsys=gnu-linux
  ;;

  ## 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=hpux10 ;;
    esac
  ;;
  hppa*-*-nextstep* )
    machine=hp800 opsys=nextstep
  ;;

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

  ## IBM machines
  i[3456]86-ibm-aix1.1* )
    machine=ibmps2-aix opsys=usg5-2-2
  ;;
  i[3456]86-ibm-aix1.[23]* | i[3456]86-ibm-aix* )
    machine=ibmps2-aix opsys=usg5-3
  ;;
  i370-ibm-aix*)
    machine=ibm370aix opsys=usg5-3
  ;;
  s390-*-linux-gnu* )
    machine=ibms390 opsys=gnu-linux
  ;;
  s390x-*-linux-gnu* )
    machine=ibms390x opsys=gnu-linux
  ;;
  rs6000-ibm-aix3.1* | powerpc-ibm-aix3.1*  )
    machine=ibmrs6000 opsys=aix3-1
  ;;
  rs6000-ibm-aix3.2.5 | powerpc-ibm-aix3.2.5 )
    machine=ibmrs6000 opsys=aix3-2-5
  ;;
  rs6000-ibm-aix4.1* | powerpc-ibm-aix4.1*  )
    machine=ibmrs6000 opsys=aix4-1
  ;;
  rs6000-ibm-aix4.2* | powerpc-ibm-aix4.2*  )
    machine=ibmrs6000 opsys=aix4-2
  ;;
  rs6000-ibm-aix4.3* | powerpc-ibm-aix4.3*  )
    machine=ibmrs6000 opsys=aix4-2
  ;;
  rs6000-ibm-aix5* | powerpc-ibm-aix5*  )
    machine=ibmrs6000 opsys=aix4-2
  ;;
  rs6000-ibm-aix4.0* | powerpc-ibm-aix4.0*  )
    machine=ibmrs6000 opsys=aix4
  ;;
  rs6000-ibm-aix4* | powerpc-ibm-aix4*  )
    machine=ibmrs6000 opsys=aix4-1
  ;;
  rs6000-ibm-aix* | powerpc-ibm-aix* )
    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[3456]86-intsys-sysv* )
    machine=is386 opsys=usg5-2-2
  ;;

  ## Prime EXL
  i[3456]86-prime-sysv* )
    machine=i386 opsys=usg5-3
  ;;

  ## Sequent Symmetry running Dynix
  i[3456]86-sequent-bsd* )
    machine=symmetry opsys=bsd4-3
  ;;

  ## Sequent Symmetry running ptx 4, which is a modified SVR4.
  i[3456]86-sequent-ptx4* | i[3456]86-sequent-sysv4* )
    machine=sequent-ptx opsys=ptx4
    NON_GNU_CPP=/lib/cpp
  ;;

  ## Sequent Symmetry running DYNIX/ptx
  ## Use the old cpp rather than the newer ANSI one.
  i[3456]86-sequent-ptx* )
    machine=sequent-ptx opsys=ptx
    NON_GNU_CPP="/lib/cpp"
  ;;

  ## ncr machine running svr4.3.
  i[3456]86-ncr-sysv4.3 )
    machine=ncr386 opsys=usg5-4-3
  ;;

  ## Unspecified sysv on an ncr machine defaults to svr4.2.
  ## (Plain usg5-4 doesn't turn on POSIX signals, which we need.)
  i[3456]86-ncr-sysv* )
    machine=ncr386 opsys=usg5-4-2
  ;;

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

  ## 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.
  ;;

  ## Macintosh PowerPC
  powerpc*-*-linux-gnu* )
    machine=macppc opsys=gnu-linux
  ;;

  ## 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"
  ;;
  mips-mips-riscos5* )
    machine=mips4 opsys=riscos5
    NON_GNU_CC="cc -systype bsd43"
    NON_GNU_CPP="cc -systype bsd43 -E"
  ;;
  mips-mips-bsd* )
    machine=mips opsys=bsd4-3
  ;;
  mips-mips-* )
    machine=mips opsys=usg5-2-2
  ;;

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

  ## 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
  ;;

  ## NEC EWS4800
  mips-nec-sysv4*)
  machine=ews4800 opsys=ux4800
  ;;

  ## 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
  mips-siemens-sysv* | mips-sni-sysv*)
    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
  ;;
  mips-sgi-irix4* )
    machine=iris4d opsys=irix4-0
  ;;
  mips-sgi-irix6.5 )
    machine=iris4d opsys=irix6-5
    # Without defining _LANGUAGE_C, things get masked out in the headers
    # so that, for instance, grepping for `free' in stdlib.h fails and
    # AC_HEADER_STD_C fails.   (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
    NON_GNU_CPP="/lib/cpp -D_LANGUAGE_C"
    NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
  ;;
  mips-sgi-irix6* )
    machine=iris4d opsys=irix6-0
    # It's not clear whether -D_LANGUAGE_C is necessary as it is for 6.5,
    # but presumably it does no harm.
    NON_GNU_CPP="/lib/cpp -D_LANGUAGE_C"
    # -32 probably isn't necessary in later v.6s -- anyone know which?
    NON_GCC_TEST_OPTIONS=-32
  ;;
  mips-sgi-irix5.[01]* )
    machine=iris4d opsys=irix5-0
  ;;
  mips-sgi-irix5* | mips-sgi-irix* )
    machine=iris4d opsys=irix5-2
  ;;

  ## SONY machines
  m68*-sony-bsd4.2* )
    machine=news opsys=bsd4-2
  ;;
  m68*-sony-bsd4.3* )
    machine=news opsys=bsd4-3
  ;;
  m68*-sony-newsos3* | m68*-sony-news3*)
    machine=news opsys=bsd4-3
  ;;
  mips-sony-bsd* | mips-sony-newsos4* | mips-sony-news4*)
    machine=news-risc opsys=bsd4-3
  ;;
  mips-sony-newsos6* )
    machine=news-r6 opsys=newsos6
  ;;
  mips-sony-news* )
    machine=news-risc opsys=newsos5
  ;;

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

  ## Suns
  sparc-*-linux-gnu* | sparc64-*-linux-gnu* )
    machine=sparc opsys=gnu-linux
  ;;

  *-auspex-sunos* | *-sun-sunos* | *-sun-bsd* | *-sun-solaris* \
    | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* | powerpc*-*-solaris2* \
    | rs6000-*-solaris2*)
    case "${canonical}" in
      m68*-sunos1* )    machine=sun1 ;;
      m68*-sunos2* )    machine=sun2 ;;
      m68* )            machine=sun3 ;;
      i[3456]86-sun-sunos[34]* )        machine=sun386 ;;
      i[3456]86-*-* )     machine=intel386 ;;
      amd64-*-*|x86_64-*-*)     machine=amdx86-64 ;;
      powerpcle* )      machine=powerpcle ;;
      powerpc* | rs6000* )  machine=ibmrs6000 ;;
      sparc* )          machine=sparc ;;
      * )               unported=yes ;;
    esac
    case "${canonical}" in
      ## The Sun386 didn't get past 4.0.
      i[3456]86-*-sunos4          ) opsys=sunos4-0 ;;
      *-sunos4.0*         ) opsys=sunos4-0 ;;
      *-sunos4.1.[3-9]*noshare )
                ## This name is sunos413 instead of sunos4-1-3
                ## to avoid a file name conflict on MSDOS.
                opsys=sunos413
                NON_GNU_CPP=/usr/lib/cpp
                NON_GCC_TEST_OPTIONS=-Bstatic
                GCC_TEST_OPTIONS=-static
                ;;
      *-sunos4.1.[3-9]* | *-sunos4shr*)
                opsys=sunos4shr
                NON_GNU_CPP=/usr/lib/cpp
                ;;
      *-sunos4* | *-sunos )
                opsys=sunos4-1
                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
                RANLIB="ar -ts"
                ;;
      *-sunos5.5* | *-solaris2.5* )
                opsys=sol2-5
                NON_GNU_CPP=/usr/ccs/lib/cpp
                RANLIB="ar -ts"
                ;;
      *-sunos5.6* | *-solaris2.6* )
                opsys=sol2-6
                NON_GNU_CPP=/usr/ccs/lib/cpp
                RANLIB="ar -ts"
                ;;
      *-sunos5* | *-solaris* )
                opsys=sol2-6
## FIXME: make this into a proper fix that checks the compiler type,
## rather than relying on path. Or is /usr/ccs/lib/cpp a bad default now?
                if [ "x$CC" = x/opt/SUNWspro/bin/cc ]; then
                  ## -Xs prevents spurious whitespace.
                  NON_GNU_CPP="/opt/SUNWspro/bin/cc -E -Xs"
                else
                  NON_GNU_CPP=/usr/ccs/lib/cpp
                fi
                ;;
      *                   ) opsys=bsd4-2   ;;
    esac
    ## Watch out for a compiler that we know will not work.
    case "${canonical}" in
     *-solaris* | *-sunos5* )
                if [ "x$CC" = x/usr/ucb/cc ]; then
                  ## /usr/ucb/cc doesn't work;
                  ## we should find some other compiler that does work.
                  unset CC
                fi
                ;;
      *) ;;
    esac
  ;;
  sparc-*-nextstep* )
    machine=sparc opsys=nextstep
  ;;

  ## 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
  ;;

  ## IA-64
  ia64*-*-linux* )
    machine=ia64 opsys=gnu-linux
  ;;

  ## Intel 386 machines where we don't care about the manufacturer
  i[3456]86-*-* )
    machine=intel386
    case "${canonical}" in
      *-cygwin )                opsys=cygwin ;;
      *-darwin* )               opsys=darwin
                                CPP="${CC-cc} -E -no-cpp-precomp"
                                ;;
      *-isc1.* | *-isc2.[01]* ) opsys=386-ix ;;
      *-isc2.2* )               opsys=isc2-2 ;;
      *-isc4.0* )               opsys=isc4-0 ;;
      *-isc4.* )                opsys=isc4-1
                                GCC_TEST_OPTIONS=-posix
                                NON_GCC_TEST_OPTIONS=-Xp
                                ;;
      *-isc* )                  opsys=isc3-0 ;;
      *-esix5* )                opsys=esix5r4; NON_GNU_CPP=/usr/lib/cpp ;;
      *-esix* )                 opsys=esix ;;
      *-xenix* )                opsys=xenix ;;
      *-linux-gnu* )            opsys=gnu-linux ;;
      *-sco3.2v4* )             opsys=sco4 ; NON_GNU_CPP=/lib/cpp  ;;
      *-sco3.2v5* )             opsys=sco5
                                NON_GNU_CPP=/lib/cpp
                                # Prevent -belf from being passed to $CPP.
                                # /lib/cpp does not accept it.
                                OVERRIDE_CPPFLAGS=" "
                                ;;
      *-sysv4.2uw* )            opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
      *-sysv5uw* )              opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
      *-sysv5OpenUNIX* )        opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
      *-386bsd* )               opsys=386bsd ;;
      *-nextstep* )             opsys=nextstep ;;
      ## Otherwise, we'll fall through to the generic opsys code at the bottom.
    esac
  ;;

  ## m68k Linux-based GNU system
  m68k-*-linux-gnu* )
    machine=m68k opsys=gnu-linux
  ;;

  ## Mips Linux-based GNU system
  mips-*-linux-gnu* | mipsel-*-linux-gnu* )
    machine=mips opsys=gnu-linux
  ;;

  ## UXP/DS
  sparc-fujitsu-sysv4* )
    machine=sparc opsys=uxpds
    NON_GNU_CPP=/usr/ccs/lib/cpp
    RANLIB="ar -ts"
  ;;

  ## UXP/V
  f301-fujitsu-uxpv4.1)
    machine=f301 opsys=uxpv
  ;;

  ## AMD x86-64 Linux-based GNU system
  x86_64-*-linux-gnu* )
    machine=amdx86-64 opsys=gnu-linux
  ;;

  ## Tensilica Xtensa Linux-based GNU system    
  xtensa*-*-linux-* )
    machine=xtensa opsys=gnu-linux