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, 2009  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 of the License, or

dnl  (at your option) 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.  If not, see <http://www.gnu.org/licenses/>.

AC_PREREQ(2.62)

AC_INIT(emacs, 23.1.50)

AC_CONFIG_HEADER(src/config.h:src/config.in)

AC_CONFIG_SRCDIR(src/lisp.h)

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

dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)

dnl Create a new --with option that defaults to being disabled.

dnl NAME is the base name of the option.  The shell variable with_NAME

dnl   will be set to either the user's value (if the option is

dnl   specified; 'yes' for a plain --with-NAME) or to 'no' (if the

dnl   option is not specified).  Note that the shell variable name is

dnl   constructed as autoconf does, by replacing non-alphanumeric

dnl   characters with "_".

dnl HELP-STRING is the help text for the option.

AC_DEFUN([OPTION_DEFAULT_OFF], [dnl

  AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl

    m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl

])dnl

dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)

dnl Create a new --with option that defaults to being enabled.  NAME

dnl   is the base name of the option.  The shell variable with_NAME

dnl   will be set either to 'no' (for a plain --without-NAME) or to

dnl   'yes' (if the option is not specified).  Note that the shell

dnl   variable name is constructed as autoconf does, by replacing

dnl   non-alphanumeric characters with "_".

dnl HELP-STRING is the help text for the option.

AC_DEFUN([OPTION_DEFAULT_ON], [dnl

  AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl

   m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=yes])dnl

])dnl

OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])

if test "$with_pop" = yes; then

   AC_DEFINE(MAIL_USE_POP)

fi

AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl

OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])

if test "$with_kerberos" != no; then

   AC_DEFINE(KERBEROS)

fi

AH_TEMPLATE(KERBEROS,

	    [Define to support Kerberos-authenticated POP mail retrieval.])dnl

OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])

if test "${with_kerberos5}" != no; then

  if test "${with_kerberos}" = no; then

    with_kerberos=yes

    AC_DEFINE(KERBEROS)

  fi

  AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])

fi

OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])

if test "$with_hesiod" != no; then

  AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])

fi

OPTION_DEFAULT_ON([sound],[don't compile with sound support])

OPTION_DEFAULT_ON([sync-input],[process async input synchronously])

if test "$with_sync_input" = yes; then

   AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])

fi

dnl FIXME currently it is not the last.

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],[AS_HELP_STRING([--with-x-toolkit=KIT],

 [use an X toolkit (KIT one of: yes, lucid, athena, motif, gtk, no)])],

[	  case "${withval}" in

	    y | ye | yes )	val=gtk ;;

	    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 ;;

	    * )

AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;

this option's value should be `yes', `no', `lucid', `athena', `motif' or `gtk'.

`yes' and `gtk' are synonyms. `athena' and `lucid' are synonyms.])

	    ;;

	  esac

	  with_x_toolkit=$val

])

dnl _ON results in a '--without' option in the --help output, so

dnl the help text should refer to "don't compile", etc.

OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])

OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])

OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])

OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])

OPTION_DEFAULT_ON([png],[don't compile with PNG image support])

OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])

OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])

OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])

OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])

OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])

OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])

OPTION_DEFAULT_ON([xim],[don't use X11 XIM])

OPTION_DEFAULT_OFF([ns],[use nextstep (Cocoa or GNUstep) windowing system])

OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])

OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])

## For the times when you want to build Emacs but don't have

## a suitable makeinfo, and can live without the manuals.

dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html

OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])

dnl Can remove these in Emacs 24.

AC_ARG_WITH([gtk],,

  [AC_MSG_ERROR([--with-gtk has been removed.  Use --with-x-toolkit to

specify a toolkit.])],,)

AC_ARG_WITH([gcc],,

  [AC_MSG_ERROR([--with-gcc has been removed.  Set the `CC' environment

variable to specify a compiler.])],,)

AC_ARG_WITH([pkg-config-prog],dnl

[AS_HELP_STRING([--with-pkg-config-prog=PATH],

                  [path to pkg-config for finding GTK and librsvg])])

if test "X${with_pkg_config_prog}" != X; then

   if test "${with_pkg_config_prog}" != yes; then

      PKG_CONFIG="${with_pkg_config_prog}"

   fi

fi

AC_ARG_WITH([gnustep-conf],dnl

[AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])

test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \

  GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"

test "X$GNUSTEP_CONFIG_FILE" = "X" && \

     GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf

AC_ARG_ENABLE(ns-self-contained,

[AS_HELP_STRING([--disable-ns-self-contained],

                [disable self contained build under NeXTstep])],

   EN_NS_SELF_CONTAINED=$enableval,

   EN_NS_SELF_CONTAINED=yes)

AC_ARG_ENABLE(asserts,

[AS_HELP_STRING([--enable-asserts], [compile code with asserts enabled])],

      USE_XASSERTS=$enableval,

      USE_XASSERTS=no)

AC_ARG_ENABLE(maintainer-mode,

[AS_HELP_STRING([--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,

[AS_HELP_STRING([--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)

AC_ARG_ENABLE(checking,

[AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],

		[enable expensive run-time checks.  With LIST,

		 enable only specific categories of checks.

		 Categories are: all,yes,no.

		 Flags are: stringbytes, stringoverrun, stringfreelist,

		 xmallocoverrun, conslist])],

[ac_checking_flags="${enableval}"],[])

IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS="$IFS,"

for check in $ac_checking_flags

do

	case $check in

	# these set all the flags to specific states

	yes)		ac_enable_checking=1 ;;

	no)		ac_enable_checking= ;

			ac_gc_check_stringbytes= ;

	                ac_gc_check_string_overrun= ;

	                ac_gc_check_string_free_list= ;

	                ac_xmalloc_overrun= ;

	                ac_gc_check_cons_list= ;;

	all)		ac_enable_checking=1 ;

			ac_gc_check_stringbytes=1 ;

	                ac_gc_check_string_overrun=1 ;

	                ac_gc_check_string_free_list=1 ;

	                ac_xmalloc_overrun=1 ;

	                ac_gc_check_cons_list=1 ;;

	# these enable particular checks

	stringbytes) 	ac_gc_check_stringbytes=1 ;;

	stringoverrun) 	ac_gc_check_string_overrun=1 ;;

	stringfreelist) ac_gc_check_string_free_list=1 ;;

	xmallocoverrun)	ac_xmalloc_overrun=1 ;;

	conslist)	ac_gc_check_cons_list=1 ;;

	*)	AC_MSG_ERROR(unknown check category $check) ;;

	esac

done

IFS="$ac_save_IFS"

if test x$ac_enable_checking != x ; then

  AC_DEFINE(ENABLE_CHECKING, 1,

[Enable expensive run-time checking of data types?])

fi

if test x$ac_gc_check_stringbytes != x ; then

  AC_DEFINE(GC_CHECK_STRING_BYTES, 1,

[Define this temporarily to hunt a bug.  If defined, the size of

   strings is redundantly recorded in sdata structures so that it can

   be compared to the sizes recorded in Lisp strings.])

fi

if test x$ac_gc_check_stringoverrun != x ; then

  AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,

[Define this to check for short string overrun.])

fi

if test x$ac_gc_check_string_free_list != x ; then

  AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,

[Define this to check the string free list.])

fi

if test x$ac_xmalloc_overrun != x ; then

  AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,

[Define this to check for malloc buffer overrun.])

fi

if test x$ac_gc_check_cons_list != x ; then

  AC_DEFINE(GC_CHECK_CONS_LIST, 1,

[Define this to check for errors in cons list.])

fi

AC_ARG_ENABLE(profiling,

[AS_HELP_STRING([--enable-profiling],

		[build emacs with profiling support.

		 This might not work on all platforms])],

[ac_enable_profiling="${enableval}"],[])

if test x$ac_enable_profiling != x ; then

   PROFILING_CFLAGS="-DPROFILING=1 -pg"

   PROFILING_LDFLAGS="-pg"

else

   PROFILING_CFLAGS=

   PROFILING_LDFLAGS=

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=${host_alias-${build_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 mips.h is MIPS

### 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 ;;

      sparc-*-freebsd*)         machine=sparc ;;

      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 ;;

      sparc-*-kfreebsd*)	machine=sparc ;;

      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 ;;

      mips-*-netbsd*)	machine=mips ;;

      mipsel-*-netbsd*)	machine=mips ;;

      mipseb-*-netbsd*)	machine=mips ;;

      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 ;;

      m68k-*-netbsd*)	machine=m68k ;;

    esac

  ;;

  ## OpenBSD ports

  *-*-openbsd* )

    opsys=openbsd

    case "${canonical}" in

      alpha*-*-openbsd*)	machine=alpha ;;

      arm-*-openbsd*)          machine=arm ;;

      i386-*-openbsd*)         machine=intel386 ;;

      powerpc-*-openbsd*)      machine=macppc ;;

      sparc*-*-openbsd*)       machine=sparc ;;

      vax-*-openbsd*)          machine=vax ;;

      x86_64-*-openbsd*)       machine=amdx86-64 ;;

      hppa-*-openbsd*)         machine=hp800 ;;

    esac

  ;;

  ## LynxOS ports

  *-*-lynxos* )

    opsys=lynxos

    case "${canonical}" in

      i[3456]86-*-lynxos*) machine=intel386 ;;

      powerpc-*-lynxos*) machine=powerpc ;;

    esac

  ;;

  alpha*-*-linux-gnu* )

    machine=alpha opsys=gnu-linux

  ;;

  arm*-*-linux-gnu* )

    machine=arm opsys=gnu-linux

  ;;

  ## Apple Darwin / Mac OS X

  *-apple-darwin* )

    case "${canonical}" in

      i[3456]86-* )  machine=intel386 ;;

      powerpc-* )    machine=macppc ;;

      * )            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

  ;;

  ## HP 9000 series 700 and 800, running HP/UX

  hppa*-hp-hpux10.2* )

    machine=hp800 opsys=hpux10-20

  ;;

  hppa*-hp-hpux1[1-9]* )

    machine=hp800 opsys=hpux11

    CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"

  ;;

  hppa*-*-linux-gnu* )

    machine=hp800 opsys=gnu-linux

  ;;

  ## IBM machines

  s390-*-linux-gnu* )

    machine=ibms390 opsys=gnu-linux

  ;;

  s390x-*-linux-gnu* )

    machine=ibms390x opsys=gnu-linux

  ;;

  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-aix6* | powerpc-ibm-aix6*  )

    machine=ibmrs6000 opsys=aix4-2

  ;;

  ## Macintosh PowerPC

  powerpc*-*-linux-gnu* )

    machine=macppc opsys=gnu-linux

  ;;

  ## Silicon Graphics machines

  ## Iris 4D

  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"

  ;;

  ## Suns

  sparc-*-linux-gnu* | sparc64-*-linux-gnu* )

    machine=sparc opsys=gnu-linux

  ;;

  *-sun-solaris* \

    | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \

    | x86_64-*-solaris2*    | x86_64-*-sunos5*    \

    | powerpc*-*-solaris2*  | rs6000-*-solaris2*)

    case "${canonical}" in

      i[3456]86-*-* )     machine=intel386 ;;

      amd64-*-*|x86_64-*-*)	machine=amdx86-64 ;;

      powerpc* | rs6000* )  machine=ibmrs6000 ;;

      sparc* )		machine=sparc ;;

      * )		unported=yes ;;

    esac

    case "${canonical}" in

      *-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.[7-9]* | *-solaris2.[7-9]* )

		opsys=sol2-6

		emacs_check_sunpro_c=yes

		NON_GNU_CPP=/usr/ccs/lib/cpp

		;;

      *-sunos5* | *-solaris* )

		opsys=sol2-10

		emacs_check_sunpro_c=yes

		NON_GNU_CPP=/usr/ccs/lib/cpp

		;;

    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

  ;;

  ## Vaxen.

  vax-dec-* )

    machine=vax

    case "${canonical}" in

      *-vms* ) 						opsys=vms ;;

      * ) 						unported=yes

    esac

  ;;

  ## 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"

 				;;

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

      *-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 ;;

      ## 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* \

    | mips64-*-linux-gnu* | mips64el-*-linux-gnu* )

    machine=mips opsys=gnu-linux

  ;;

  ## 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-gnu* )

    machine=xtensa opsys=gnu-linux

    ;;

  ## SuperH Linux-based GNU system

  sh[34]*-*-linux-gnu* )

    machine=sh3 opsys=gnu-linux

  ;;

  * )

    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 ;;

    *-sysv4.2uw* )			opsys=unixware ;;

    *-sysv5uw* )			opsys=unixware ;;

    *-sysv5OpenUNIX* )			opsys=unixware ;;

    *-sysv4.1* | *-sysvr4.1* )

	NON_GNU_CPP=/usr/lib/cpp

	opsys=usg5-4 ;;

    *-sysv4.[2-9]* | *-sysvr4.[2-9]* )

	if [ x$NON_GNU_CPP = x ]; then

	  if [ -f /usr/ccs/lib/cpp ]; then

	    NON_GNU_CPP=/usr/ccs/lib/cpp

	  else

	    NON_GNU_CPP=/lib/cpp

	  fi

	fi

	opsys=usg5-4-2 ;;

    *-sysv4* | *-sysvr4* )		opsys=usg5-4 ;;

    * )

      unported=yes

    ;;

  esac

fi

]

dnl quotation ends

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

# Save the value of CFLAGS that the user specified.

SPECIFIED_CFLAGS="$CFLAGS"

dnl Sets GCC=yes if using gcc.

AC_PROG_CC

# On Suns, sometimes $CPP names a directory.

if test -n "$CPP" && test -d "$CPP"; then

  CPP=

fi

## If not using gcc, and on Solaris, and no CPP specified, see if

## using a Sun compiler, which needs -Xs to prevent whitespace.

if test x"$GCC" != xyes && test x"$emacs_check_sunpro_c" = xyes && \

 test x"$CPP" = x; then

  AC_MSG_CHECKING([whether we are using a Sun C compiler])

  AC_CACHE_VAL(emacs_cv_sunpro_c,

  [AC_TRY_LINK([],

[#ifndef __SUNPRO_C

fail;

#endif

], emacs_cv_sunpro_c=yes, emacs_cv_sunpro_c=no)])

  AC_MSG_RESULT($emacs_cv_sunpro_c)

  if test x"$emacs_cv_sunpro_c" = xyes; then

    NON_GNU_CPP="$CC -E -Xs"

  fi

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

dnl checks for Unix variants

AC_USE_SYSTEM_EXTENSIONS

### Use -Wno-pointer-sign if the compiler supports it

AC_MSG_CHECKING([whether gcc understands -Wno-pointer-sign])

SAVE_CFLAGS="$CFLAGS"

CFLAGS="$CFLAGS -Wno-pointer-sign"

AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)

if test $has_option = yes; then

   C_WARNINGS_SWITCH="-Wno-pointer-sign $C_WARNINGS_SWITCH"

fi

AC_MSG_RESULT($has_option)

CFLAGS="$SAVE_CFLAGS"

unset has_option

unset SAVE_CFLAGS

#### Some other nice autoconf tests.

dnl checks for programs

AC_PROG_LN_S

AC_PROG_CPP

AC_PROG_INSTALL

if test "x$RANLIB" = x; then

  AC_PROG_RANLIB

fi

AC_PATH_PROG(INSTALL_INFO, install-info)

AC_PATH_PROG(INSTALL_INFO, install-info,, /usr/sbin)

AC_PATH_PROG(INSTALL_INFO, install-info,:, /sbin)

dnl Don't use GZIP, which is used by gzip for additional parameters.

AC_PATH_PROG(GZIP_PROG, gzip)

## Need makeinfo >= 4.6 (?) to build the manuals.

AC_PATH_PROG(MAKEINFO, makeinfo, no)

dnl By this stage, configure has already checked for egrep and set EGREP,

dnl or exited with an error if no egrep was found.

if test "$MAKEINFO" != "no" && \

  test x"`$MAKEINFO --version 2> /dev/null | $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[6-9]]|4\.[[1-5]][[0-9]]+)'`" = x; then

   MAKEINFO=no

fi

## Makeinfo is unusual.  For a released Emacs, the manuals are

## pre-built, and not deleted by the normal clean rules.  makeinfo is

## therefore in the category of "special tools" not normally required, which

## configure does not have to check for (eg autoconf itself).

## In a CVS checkout on the other hand, the manuals are not included.

## So makeinfo is a requirement to build from CVS, and configure

## should test for it as it does for any other build requirement.

## We use the presence of $srcdir/info/emacs to distinguish a release,

## with pre-built manuals, from a CVS checkout.

if test "$MAKEINFO" = "no"; then

  if test "x${with_makeinfo}" = "xno"; then

    MAKEINFO=off

  elif ! test -e $srcdir/info/emacs; then

    AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.6, and your

source tree does not seem to have pre-built manuals in the `info' directory.

Either install a suitable version of makeinfo, or re-run configure

with the `--without-makeinfo' option to build without the manuals.] )

  fi

fi

dnl Add our options to ac_link now, after it is set up.

if test x$GCC = xyes && test "x$GCC_LINK_TEST_OPTIONS" != x

then

  ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"

fi

if test x$GCC = x && test "x$NON_GCC_LINK_TEST_OPTIONS" != x

then

  ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"

fi

dnl We need -znocombreloc if we're using a relatively recent GNU ld.

dnl If we can link with the flag, it shouldn't do any harm anyhow.

dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)

dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'

dnl if not built to support GNU ld.

late_LDFLAGS=$LDFLAGS

if test "$GCC" = yes; then

  LDFLAGS="$LDFLAGS -Wl,-znocombreloc"

else

  LDFLAGS="$LDFLAGS -znocombreloc"

fi

AC_MSG_CHECKING([for -znocombreloc])

AC_LINK_IFELSE([main(){return 0;}],

  [AC_MSG_RESULT(yes)],

  LDFLAGS=$late_LDFLAGS

  [AC_MSG_RESULT(no)])

#### 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 GNU/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_SYSTEM

#define LIBX11_SYSTEM

#endif

configure___ LIBX=LIB_X11_LIB 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

#ifdef USE_MMAP_FOR_BUFFERS

configure___ use_mmap_for_buffers=yes

#else

configure___ use_mmap_for_buffers=no

#endif

#ifndef C_DEBUG_SWITCH

#define C_DEBUG_SWITCH -g

#endif

#ifndef C_OPTIMIZE_SWITCH

#ifdef __GNUC__

#define C_OPTIMIZE_SWITCH -O2

#else

#define C_OPTIMIZE_SWITCH -O

#endif

#endif

#ifndef C_WARNINGS_SWITCH

#define C_WARNINGS_SWITCH ${C_WARNINGS_SWITCH}

#endif

#ifndef LD_SWITCH_MACHINE

#define LD_SWITCH_MACHINE

#endif

#ifndef LD_SWITCH_SYSTEM

#define LD_SWITCH_SYSTEM

#endif

#ifndef LD_SWITCH_X_SITE_AUX

#define LD_SWITCH_X_SITE_AUX

#endif

configure___ ld_switch_system=LD_SWITCH_SYSTEM

configure___ ld_switch_machine=LD_SWITCH_MACHINE

#ifdef THIS_IS_CONFIGURE

/* Get the CFLAGS for tests in configure.  */

#ifdef __GNUC__

configure___ CFLAGS=C_DEBUG_SWITCH C_OPTIMIZE_SWITCH '${SPECIFIED_CFLAGS}'

#else

configure___ CFLAGS=C_DEBUG_SWITCH '${SPECIFIED_CFLAGS}'

#endif

#else /* not THIS_IS_CONFIGURE */

/* Get the CFLAGS for real compilation.  */

#ifdef __GNUC__

configure___ REAL_CFLAGS=C_DEBUG_SWITCH C_OPTIMIZE_SWITCH C_WARNINGS_SWITCH ${PROFILING_CFLAGS} '${SPECIFIED_CFLAGS}'

#else

configure___ REAL_CFLAGS=C_DEBUG_SWITCH '${SPECIFIED_CFLAGS}'

#endif

#endif /* not THIS_IS_CONFIGURE */

' > ${tempcname}

LDFLAGS="${LDFLAGS} ${PROFILING_LDFLAGS}"

# The value of CPP is a quoted variable reference, so we need to do this

# to get its actual value...

CPP=`eval "echo $CPP"`

[eval `${CPP} -Isrc ${tempcname} \

       | sed -n -e 's/^configure___ \([^=]*=\)\(.*\)$/\1"\2"/p'`

if test "x$SPECIFIED_CFLAGS" = x; then

  eval `${CPP} -Isrc -DTHIS_IS_CONFIGURE ${tempcname} \

	 | sed -n -e 's/^configure___ \([^=]*=\)\(.*\)$/\1"\2"/p'`

else

  REAL_CFLAGS="$CFLAGS"

fi]

rm ${tempcname}

ac_link="$ac_link $ld_switch_machine $ld_switch_system"

### Make sure subsequent tests use flags consistent with the build flags.

if test x"${OVERRIDE_CPPFLAGS}" != x; then

  CPPFLAGS="${OVERRIDE_CPPFLAGS}"

else

  CPPFLAGS="$c_switch_system $c_switch_machine $CPPFLAGS"

fi

dnl For AC_FUNC_GETLOADAVG, at least:

AC_CONFIG_LIBOBJ_DIR(src)

dnl Do this early because it can frob feature test macros for Unix-98 &c.

AC_SYS_LARGEFILE

### The standard library on x86-64 and s390x GNU/Linux distributions can

### be located in either /usr/lib64 or /usr/lib.

### In some rare cases, /usr/lib64 exists but does not contain the

### relevant files (bug#1287).  Hence test for crtn.o.

case "${canonical}" in

  x86_64-*-linux-gnu* | s390x-*-linux-gnu* )

    if test -e /usr/lib64/crtn.o; then

      AC_DEFINE(HAVE_LIB64_DIR, 1,

        [Define to 1 if the directory /usr/lib64 exists.])

fi

esac

dnl This function defintion taken from Gnome 2.0

dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)

dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page

dnl also defines GSTUFF_PKG_ERRORS on error

AC_DEFUN([PKG_CHECK_MODULES], [

  succeeded=no

  AC_PATH_PROG(PKG_CONFIG, pkg-config, no)

  if test "$PKG_CONFIG" = "no" ; then

     ifelse([$4], , [AC_MSG_ERROR([

      *** The pkg-config script could not be found. Make sure it is in your path, or give the full path to pkg-config with the PKG_CONFIG environment variable or --with-pkg-config-prog.  Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config.])], [$4])

  else

     PKG_CONFIG_MIN_VERSION=0.9.0

     if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then

        AC_MSG_CHECKING(for $2)

        if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD; then

            AC_MSG_RESULT(yes)

            succeeded=yes

            AC_MSG_CHECKING($1_CFLAGS)

            $1_CFLAGS=`$PKG_CONFIG --cflags "$2"|sed -e 's,///*,/,g'`

            AC_MSG_RESULT($$1_CFLAGS)

            AC_MSG_CHECKING($1_LIBS)

            $1_LIBS=`$PKG_CONFIG --libs "$2"|sed -e 's,///*,/,g'`

            AC_MSG_RESULT($$1_LIBS)

        else

            AC_MSG_RESULT(no)

            $1_CFLAGS=""

            $1_LIBS=""

            ## If we have a custom action on failure, don't print errors, but

            ## do set a variable so people can do so.

            $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`

            ifelse([$4], ,echo $$1_PKG_ERRORS,)

        fi

        AC_SUBST($1_CFLAGS)

        AC_SUBST($1_LIBS)

     else

        echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."

        echo "*** See http://www.freedesktop.org/software/pkgconfig"

     fi

  fi

  if test $succeeded = yes; then

     ifelse([$3], , :, [$3])

  else

     ifelse([$4], , [AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.])], [$4])

  fi

])

if test "${with_sound}" != "no"; then

  # Sound support for GNU/Linux and the free BSDs.

  AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h)

  # Emulation library used on NetBSD.

  AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)

  AC_SUBST(LIBSOUND)

  ALSA_REQUIRED=1.0.0

  ALSA_MODULES="alsa >= $ALSA_REQUIRED"

  PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)

  if test $HAVE_ALSA = yes; then

    SAVE_CFLAGS="$CFLAGS"

    SAVE_LDFLAGS="$LDFLAGS"

    CFLAGS="$ALSA_CFLAGS $CFLAGS"

    LDFLAGS="$ALSA_LIBS $LDFLAGS"

    AC_TRY_COMPILE([#include <asoundlib.h>], [snd_lib_error_set_handler (0);],

                    emacs_alsa_normal=yes,

	            emacs_alsa_normal=no)

    if test "$emacs_alsa_normal" != yes; then

      AC_TRY_COMPILE([#include <alsa/asoundlib.h>],

                     [snd_lib_error_set_handler (0);],

                     emacs_alsa_subdir=yes,

	             emacs_alsa_subdir=no)

      if test "$emacs_alsa_subdir" != yes; then

        AC_MSG_ERROR([pkg-config found alsa, but it does not compile.  See config.log for error messages.])

      fi

      ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"

    fi

    CFLAGS="$SAVE_CFLAGS"

    LDFLAGS="$SAVE_LDFLAGS"

    LIBSOUND="$LIBSOUND $ALSA_LIBS"

    CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"

    AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])

  fi

  AC_SUBST(CFLAGS_SOUND)

fi

dnl checks for header files

AC_CHECK_HEADERS(sys/select.h sys/timeb.h sys/time.h unistd.h utime.h \

  linux/version.h sys/systeminfo.h termios.h limits.h string.h stdlib.h \

  termcap.h stdio_ext.h fcntl.h strings.h coff.h pty.h sys/mman.h \

  sys/param.h sys/vlimit.h sys/resource.h locale.h sys/_mbstate_t.h \

  sys/utsname.h pwd.h)

AC_MSG_CHECKING(if personality LINUX32 can be set)

AC_TRY_COMPILE([#include <sys/personality.h>], [personality (PER_LINUX32)],

               emacs_cv_personality_linux32=yes,

	       emacs_cv_personality_linux32=no)

AC_MSG_RESULT($emacs_cv_personality_linux32)

if test $emacs_cv_personality_linux32 = yes; then

  AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,

            [Define to 1 if personality LINUX32 can be set.])

fi

dnl On Solaris 8 there's a compilation warning for term.h because

dnl it doesn't define `bool'.

AC_CHECK_HEADERS(term.h, , , -)

AC_HEADER_STDC

AC_HEADER_TIME

AC_CHECK_DECLS([sys_siglist])

if test $ac_cv_have_decl_sys_siglist != yes; then

  # For Tru64, at least:

  AC_CHECK_DECLS([__sys_siglist])

  if test $ac_cv_have_decl___sys_siglist = yes; then

    AC_DEFINE(sys_siglist, __sys_siglist,

              [Define to any substitute for sys_siglist.])

  fi

fi

AC_HEADER_SYS_WAIT

dnl Some systems have utime.h but don't declare the struct anyplace.

AC_CACHE_CHECK(for struct utimbuf, emacs_cv_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;],

  emacs_cv_struct_utimbuf=yes, emacs_cv_struct_utimbuf=no))

if test $emacs_cv_struct_utimbuf = yes; then

  AC_DEFINE(HAVE_STRUCT_UTIMBUF, 1, [Define to 1 if `struct utimbuf' is declared by <utime.h>.])

fi

dnl checks for typedefs

AC_TYPE_SIGNAL

dnl Check for speed_t typedef.

AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,

  [AC_TRY_COMPILE([#include <termios.h>], [speed_t x = 1;],

    emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])

if test $emacs_cv_speed_t = yes; then

  AC_DEFINE(HAVE_SPEED_T, 1,

  	   [Define to 1 if `speed_t' is declared by <termios.h>.])

fi

AC_CACHE_CHECK(for struct timeval, emacs_cv_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;],

  emacs_cv_struct_timeval=yes, emacs_cv_struct_timeval=no))

HAVE_TIMEVAL=$emacs_cv_struct_timeval

if test $emacs_cv_struct_timeval = yes; then

  AC_DEFINE(HAVE_TIMEVAL, 1, [Define to 1 if `struct timeval' is declared by <sys/time.h>.])

fi

AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,

AC_TRY_COMPILE([#include <math.h>],

[static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;],

  emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))

HAVE_EXCEPTION=$emacs_cv_struct_exception

if test $emacs_cv_struct_exception != yes; then

  AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])

fi

AC_CHECK_HEADERS(sys/socket.h)

AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT

#if HAVE_SYS_SOCKET_H

#include <sys/socket.h>

#endif])

dnl checks for structure members

AC_STRUCT_TM

AC_STRUCT_TIMEZONE

AC_CHECK_MEMBER(struct tm.tm_gmtoff,

		[AC_DEFINE(HAVE_TM_GMTOFF, 1,

			   [Define to 1 if `tm_gmtoff' is member of `struct tm'.])],,

		[#include <time.h>])

AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,

		  struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,

		  struct ifreq.ifr_addr], , ,

		 [AC_INCLUDES_DEFAULT

#if HAVE_SYS_SOCKET_H

#include <sys/socket.h>

#endif

#if HAVE_NET_IF_H

#include <net/if.h>

#endif])

dnl checks for compiler characteristics

dnl Testing __STDC__ to determine prototype support isn't good enough.

dnl DEC C, for instance, doesn't define it with default options, and

dnl is used on 64-bit systems (OSF Alphas).  Similarly for volatile

dnl and void *.

AC_C_PROTOTYPES

AC_C_VOLATILE

AC_C_CONST

dnl This isn't useful because we can't turn on use of `inline' unless

dnl the compiler groks `extern inline'.

dnl AC_C_INLINE

AC_CACHE_CHECK([for void * support], emacs_cv_void_star,

  [AC_TRY_COMPILE(, [void * foo;],

                   emacs_cv_void_star=yes, emacs_cv_void_star=no)])

if test $emacs_cv_void_star = yes; then

  AC_DEFINE(POINTER_TYPE, void)

else

  AC_DEFINE(POINTER_TYPE, char)

fi

AH_TEMPLATE(POINTER_TYPE,

	    [Define as `void' if your compiler accepts `void *'; otherwise

	     define as `char'.])dnl

dnl This could be used for targets which can have both byte sexes.

dnl We could presumably replace the hardwired WORDS_BIG_ENDIAN generally.

dnl AC_C_BIGENDIAN

dnl check for Make feature

AC_PROG_MAKE_SET

dnl checks for operating system services

AC_SYS_LONG_FILE_NAMES

#### Choose a window system.

AC_PATH_X

if test "$no_x" = yes; then

  window_system=none

else

  window_system=x11

fi

## Workaround for bug in autoconf <= 2.62.

## http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01551.html

## No need to do anything special for these standard directories.

## This is an experiment, take it out if it causes problems.

if test -n "${x_libraries}" && test x"${x_libraries}" != xNONE; then

   x_libraries=`echo :${x_libraries}: | sed -e 's|:/usr/lib64:|:|g' -e 's|:/lib64:|:|g' -e 's|^:||' -e 's|:$||'`

fi

if test "${x_libraries}" != NONE; then

  if test -n "${x_libraries}"; then

    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"`

  fi

  x_default_search_path=""

  x_search_path=${x_libraries}

  if test -z "${x_search_path}"; then

    x_search_path=/usr/lib

  fi

  for x_library in `echo ${x_search_path}: | \

		    sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do

    x_search_path="\

${x_library}/X11/%L/%T/%N%C%S:\

${x_library}/X11/%l/%T/%N%C%S:\

${x_library}/X11/%T/%N%C%S:\

${x_library}/X11/%L/%T/%N%S:\

${x_library}/X11/%l/%T/%N%S:\

${x_library}/X11/%T/%N%S"

    if test x"${x_default_search_path}" = x; then

      x_default_search_path=${x_search_path}

    else

      x_default_search_path="${x_search_path}:${x_default_search_path}"

    fi

  done

fi

if test "${x_includes}" != NONE && test -n "${x_includes}"; then

  C_SWITCH_X_SITE=-I`echo ${x_includes} | sed -e "s/:/ -I/g"`

fi

if test x"${x_includes}" = x; then

  bitmapdir=/usr/include/X11/bitmaps

else

  # accumulate include directories that have X11 bitmap subdirectories

  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"

    fi

    if 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

fi

HAVE_NS=no

NS_IMPL_COCOA=no

NS_IMPL_GNUSTEP=no

tmp_CPPFLAGS="$CPPFLAGS"

tmp_CFLAGS="$CFLAGS"

CPPFLAGS="$CPPFLAGS -x objective-c"

CFLAGS="$CFLAGS -x objective-c"

if test "${with_ns}" != no; then

  if test "${opsys}" = darwin; then

     NS_IMPL_COCOA=yes

     ns_appdir=`pwd`/nextstep/Emacs.app

     ns_appbindir=`pwd`/nextstep/Emacs.app/Contents/MacOS

     ns_appresdir=`pwd`/nextstep/Emacs.app/Contents/Resources

     ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base

  elif test -f $GNUSTEP_CONFIG_FILE; then

     NS_IMPL_GNUSTEP=yes

     ns_appdir=`pwd`/nextstep/Emacs.app

     ns_appbindir=`pwd`/nextstep/Emacs.app

     ns_appresdir=`pwd`/nextstep/Emacs.app/Resources

     ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base

     dnl FIXME sourcing this 3 times in subshells seems inefficient.

     GNUSTEP_MAKEFILES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_MAKEFILES)"

     GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"

     GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"

     CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS}"

     CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS}"

     REAL_CFLAGS="$REAL_CFLAGS -I${GNUSTEP_SYSTEM_HEADERS}"

     LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES}"

  fi

  AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],

  		  [AC_MSG_ERROR([`--with-ns' was specified, but the include

  files are missing or cannot be compiled.])])

  NS_HAVE_NSINTEGER=yes

  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],

                                     [NSInteger i;])],

		    ns_have_nsinteger=yes,

		    ns_have_nsinteger=no)

  if test $ns_have_nsinteger = no; then

    NS_HAVE_NSINTEGER=no

  fi

fi

if test "${HAVE_NS}" = yes; then

  window_system=nextstep

  with_xft=no

  # set up packaging dirs

  exec_prefix=${ns_appbindir}

  libexecdir=${ns_appbindir}/libexec

  if test "${EN_NS_SELF_CONTAINED}" = yes; then

     prefix=${ns_appresdir}

  fi

fi

CFLAGS="$tmp_CFLAGS"

CPPFLAGS="$tmp_CPPFLAGS"

case "${window_system}" in

  x11 )

    HAVE_X_WINDOWS=yes

    HAVE_X11=yes

    case "${with_x_toolkit}" in

      athena | lucid ) USE_X_TOOLKIT=LUCID ;;

      motif ) USE_X_TOOLKIT=MOTIF ;;

      gtk ) with_gtk=yes

dnl Dont set this for GTK.  A lot of tests below assumes Xt when

dnl USE_X_TOOLKIT is set.

            USE_X_TOOLKIT=none ;;

      no ) USE_X_TOOLKIT=none ;;

dnl If user did not say whether to use a toolkit, make this decision later:

dnl use the toolkit if we have gtk, or X11R5 or newer.

      * ) USE_X_TOOLKIT=maybe ;;

    esac

  ;;

  nextstep | none )

    HAVE_X_WINDOWS=no

    HAVE_X11=no

    USE_X_TOOLKIT=none

  ;;

esac

if test "$window_system" = none && test "X$with_x" != "Xno"; then

   AC_CHECK_PROG(HAVE_XSERVER, X, true, false)

   if test "$HAVE_XSERVER" = true ||

      test -n "$DISPLAY" ||

      test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then

        AC_MSG_ERROR([You seem to be running X, but no X development libraries

were found.  You should install the relevant development files for X

and for the toolkit you want, such as Gtk+, Lesstif or Motif.  Also make

sure you have development files for image handling, i.e.

tiff, gif, jpeg, png and xpm.

If you are sure you want Emacs compiled without X window support, pass

  --without-x

to configure.])

   fi

fi

### If we're using X11, we should use the X menu package.

HAVE_MENUS=no

case ${HAVE_X11} in

  yes ) HAVE_MENUS=yes ;;

esac

# Do the opsystem or machine files prohibit the use of the GNU malloc?

# Assume not, until told otherwise.

GNU_MALLOC=yes

doug_lea_malloc=yes

AC_CHECK_FUNC(malloc_get_state, ,doug_lea_malloc=no)

AC_CHECK_FUNC(malloc_set_state, ,doug_lea_malloc=no)

AC_CACHE_CHECK(whether __after_morecore_hook exists,

	       emacs_cv_var___after_morecore_hook,

[AC_TRY_LINK([extern void (* __after_morecore_hook)();],[__after_morecore_hook = 0],

  emacs_cv_var___after_morecore_hook=yes,

  emacs_cv_var___after_morecore_hook=no)])

if test $emacs_cv_var___after_morecore_hook = no; then

  doug_lea_malloc=no

fi

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 "$doug_lea_malloc" = "yes" ; then

  if test "$GNU_MALLOC" = yes ; then

    GNU_MALLOC_reason="

      (Using Doug Lea's new malloc from the GNU C Library.)"

  fi

  AC_DEFINE(DOUG_LEA_MALLOC, 1,

	    [Define to 1 if you are using the GNU C Library.])

fi

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

  REL_ALLOC=${GNU_MALLOC}

fi

dnl For now, need to use an explicit `#define USE_MMAP_FOR_BUFFERS 1'

dnl the system configuration file (s/*.h) to turn the use of mmap

dnl in the relocating allocator on.

AC_FUNC_MMAP

if test $use_mmap_for_buffers = yes; then

  REL_ALLOC=no

fi

LIBS="$libsrc_libs $LIBS"

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")

AC_CHECK_LIB(pthreads, cma_open)

dnl Check for need for bigtoc support on IBM AIX

case ${host_os} in

aix*)

  AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [

    case $GCC in

    yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;

    *) gdb_cv_bigtoc=-bbigtoc ;;

    esac

    LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc

    AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])

  ])

  ;;

esac

# Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets

# used for the tests that follow.  We set them back to REAL_CFLAGS and

# REAL_CPPFLAGS later on.

REAL_CPPFLAGS="$CPPFLAGS"

if test "${HAVE_X11}" = "yes"; then

  DEFS="$C_SWITCH_X_SITE $DEFS"

  LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"

  LIBS="$LIBX $LIBS"

  CFLAGS="$C_SWITCH_X_SITE $CFLAGS"

  CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"

  # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.

  # This is handled by LD_SWITCH_X_SITE_AUX during the real build,

  # but it's more convenient here to set LD_RUN_PATH

  # since this also works on hosts that don't understand LD_SWITCH_X_SITE_AUX.

  if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then

    LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH

    export LD_RUN_PATH

  fi

  if test "${opsys}" = "gnu-linux"; then

    AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)

    AC_TRY_LINK([],

     [XOpenDisplay ("foo");],

     [xlinux_first_failure=no],

     [xlinux_first_failure=yes])

    if test "${xlinux_first_failure}" = "yes"; then

      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");],

       [xlinux_second_failure=no],

       [xlinux_second_failure=yes])

      if test "${xlinux_second_failure}" = "yes"; then

	# 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

  # Reportedly, some broken Solaris systems have XKBlib.h but are missing

  # header files included from there.

  AC_MSG_CHECKING(for Xkb)

  AC_TRY_LINK([#include <X11/Xlib.h>

#include <X11/XKBlib.h>],

	[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);],

	emacs_xkb=yes, emacs_xkb=no)

  AC_MSG_RESULT($emacs_xkb)

  if test $emacs_xkb = yes; then

    AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])

  fi

  AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \

XScreenNumberOfScreen XSetWMProtocols)

fi

if test "${window_system}" = "x11"; then

  AC_MSG_CHECKING(X11 version 6)

  AC_CACHE_VAL(emacs_cv_x11_version_6,

  [AC_TRY_LINK([#include <X11/Xlib.h>],

[#if XlibSpecificationRelease < 6

fail;

#endif

], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])

  if test $emacs_cv_x11_version_6 = yes; then

    AC_MSG_RESULT(6 or newer)

    AC_DEFINE(HAVE_X11R6, 1,

	      [Define to 1 if you have the X11R6 or newer version of Xlib.])

  else

    AC_MSG_RESULT(before 6)

  fi

fi

### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.

HAVE_RSVG=no

if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then

  if test "${with_rsvg}" != "no"; then

    RSVG_REQUIRED=2.11.0

    RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"

    PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, :, :)

    AC_SUBST(RSVG_CFLAGS)

    AC_SUBST(RSVG_LIBS)

    if test ".${RSVG_CFLAGS}" != "."; then

      HAVE_RSVG=yes

      AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])

      CFLAGS="$CFLAGS $RSVG_CFLAGS"

      LIBS="$RSVG_LIBS $LIBS"

    fi