code.delx.au - gnu-emacs/blob - configure.in

   1 dnl  Autoconf script for GNU Emacs
   2 dnl To rebuild the `configure' script from this, execute the command
   3 dnl     autoconf
   4 dnl in the directory containing this script.
   5 dnl If you changed any AC_DEFINES, also run autoheader.
   6 dnl
   7 dnl  Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2003, 2004,
   8 dnl    2005, 2006, 2007, 2008, 2009, 2010
   9 dnl    Free Software Foundation, Inc.
  10 dnl
  11 dnl  This file is part of GNU Emacs.
  12 dnl
  13 dnl  GNU Emacs is free software: you can redistribute it and/or modify
  14 dnl  it under the terms of the GNU General Public License as published by
  15 dnl  the Free Software Foundation, either version 3 of the License, or
  16 dnl  (at your option) any later version.
  17 dnl
  18 dnl  GNU Emacs is distributed in the hope that it will be useful,
  19 dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 dnl  GNU General Public License for more details.
  22 dnl
  23 dnl  You should have received a copy of the GNU General Public License
  24 dnl  along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  25
  26 AC_PREREQ(2.65)
  27 AC_INIT(emacs, 24.0.50)
  28 AC_CONFIG_HEADER(src/config.h:src/config.in)
  29 AC_CONFIG_SRCDIR(src/lisp.h)
  30
  31 dnl Support for --program-prefix, --program-suffix and
  32 dnl --program-transform-name options
  33 AC_ARG_PROGRAM
  34
  35 dnl It is important that variables on the RHS not be expanded here,
  36 dnl hence the single quotes.  This is per the GNU coding standards, see
  37 dnl (autoconf) Installation Directory Variables
  38 dnl See also epaths.h below.
  39 lispdir='${datadir}/emacs/${version}/lisp'
  40 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
  41 '${datadir}/emacs/site-lisp'
  42 lisppath='${locallisppath}:${lispdir}:${datadir}/emacs/${version}/leim'
  43 etcdir='${datadir}/emacs/${version}/etc'
  44 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
  45 docdir='${datadir}/emacs/${version}/etc'
  46 gamedir='${localstatedir}/games/emacs'
  47
  48 gameuser=games
  49
  50 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
  51 dnl Create a new --with option that defaults to being disabled.
  52 dnl NAME is the base name of the option.  The shell variable with_NAME
  53 dnl   will be set to either the user's value (if the option is
  54 dnl   specified; 'yes' for a plain --with-NAME) or to 'no' (if the
  55 dnl   option is not specified).  Note that the shell variable name is
  56 dnl   constructed as autoconf does, by replacing non-alphanumeric
  57 dnl   characters with "_".
  58 dnl HELP-STRING is the help text for the option.
  59 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
  60   AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
  61     m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
  62 ])dnl
  63
  64 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
  65 dnl Create a new --with option that defaults to being enabled.  NAME
  66 dnl   is the base name of the option.  The shell variable with_NAME
  67 dnl   will be set either to 'no' (for a plain --without-NAME) or to
  68 dnl   'yes' (if the option is not specified).  Note that the shell
  69 dnl   variable name is constructed as autoconf does, by replacing
  70 dnl   non-alphanumeric characters with "_".
  71 dnl HELP-STRING is the help text for the option.
  72 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
  73   AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
  74    m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=yes])dnl
  75 ])dnl
  76
  77 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
  78 if test "$with_pop" = yes; then
  79    AC_DEFINE(MAIL_USE_POP)
  80 fi
  81 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
  82
  83 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
  84 if test "$with_kerberos" != no; then
  85    AC_DEFINE(KERBEROS)
  86 fi
  87 AH_TEMPLATE(KERBEROS,
  88             [Define to support Kerberos-authenticated POP mail retrieval.])dnl
  89
  90 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
  91 if test "${with_kerberos5}" != no; then
  92   if test "${with_kerberos}" = no; then
  93     with_kerberos=yes
  94     AC_DEFINE(KERBEROS)
  95   fi
  96   AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
  97 fi
  98
  99 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
 100 dnl FIXME hesiod support may not be present, so it seems like an error
 101 dnl to define, or at least use, this unconditionally.
 102 if test "$with_hesiod" != no; then
 103   AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
 104 fi
 105
 106 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
 107 if test "$with_mmdf" != no; then
 108    AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
 109 fi
 110
 111 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
 112 if test "$with_mail_unlink" != no; then
 113    AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
 114 fi
 115
 116 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
 117     [string giving default POP mail host])],
 118     AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
 119
 120 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
 121
 122 OPTION_DEFAULT_ON([sync-input],[process async input synchronously])
 123 if test "$with_sync_input" = yes; then
 124    AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])
 125 fi
 126
 127 dnl FIXME currently it is not the last.
 128 dnl This should be the last --with option, because --with-x is
 129 dnl added later on when we find the path of X, and it's best to
 130 dnl keep them together visually.
 131 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
 132  [use an X toolkit (KIT one of: yes or gtk, gtk3, lucid or athena, motif, no)])],
 133 [         case "${withval}" in
 134             y | ye | yes )      val=gtk ;;
 135             n | no )            val=no  ;;
 136             l | lu | luc | luci | lucid )       val=lucid ;;
 137             a | at | ath | athe | athen | athena )      val=athena ;;
 138             m | mo | mot | moti | motif )       val=motif ;;
 139             g | gt | gtk  )     val=gtk ;;
 140             gtk3  )     val=gtk3 ;;
 141             * )
 142 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
 143 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk' or
 144 `gtk3'.  `yes' and `gtk' are synonyms. `athena' and `lucid' are synonyms.])
 145             ;;
 146           esac
 147           with_x_toolkit=$val
 148 ])
 149
 150 dnl _ON results in a '--without' option in the --help output, so
 151 dnl the help text should refer to "don't compile", etc.
 152 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
 153 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
 154 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
 155 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
 156 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
 157 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
 158 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
 159 OPTION_DEFAULT_OFF([imagemagick],[compile with ImageMagick image support])
 160
 161 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
 162 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
 163 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
 164
 165 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
 166 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
 167 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
 168 OPTION_DEFAULT_OFF([ns],[use nextstep (Cocoa or GNUstep) windowing system])
 169
 170 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
 171 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
 172 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
 173 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
 174 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
 175
 176 ## For the times when you want to build Emacs but don't have
 177 ## a suitable makeinfo, and can live without the manuals.
 178 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
 179 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
 180
 181 ## This is an option because I do not know if all info/man support
 182 ## compressed files, nor how to test if they do so.
 183 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
 184 if test $with_compress_info = yes; then
 185    GZIP_INFO=yes
 186 else
 187    GZIP_INFO=
 188 fi
 189 AC_SUBST(GZIP_INFO)
 190
 191 AC_ARG_WITH([pkg-config-prog],dnl
 192 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
 193                   [path to pkg-config for finding GTK and librsvg])])
 194 if test "X${with_pkg_config_prog}" != X; then
 195    if test "${with_pkg_config_prog}" != yes; then
 196       PKG_CONFIG="${with_pkg_config_prog}"
 197    fi
 198 fi
 199
 200 CRT_DIR=
 201 AC_ARG_WITH([crt-dir],dnl
 202 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
 203 The default is /usr/lib, or /usr/lib64 on some platforms.])])
 204 CRT_DIR="${with_crt_dir}"
 205
 206 AC_ARG_WITH([gnustep-conf],dnl
 207 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
 208 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
 209   GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
 210 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
 211      GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
 212
 213 AC_ARG_ENABLE(ns-self-contained,
 214 [AS_HELP_STRING([--disable-ns-self-contained],
 215                 [disable self contained build under NeXTstep])],
 216    EN_NS_SELF_CONTAINED=$enableval,
 217    EN_NS_SELF_CONTAINED=yes)
 218
 219 AC_ARG_ENABLE(asserts,
 220 [AS_HELP_STRING([--enable-asserts], [compile code with asserts enabled])],
 221       USE_XASSERTS=$enableval,
 222       USE_XASSERTS=no)
 223
 224 AC_ARG_ENABLE(maintainer-mode,
 225 [AS_HELP_STRING([--enable-maintainer-mode],
 226                 [enable make rules and dependencies not useful (and sometimes
 227                  confusing) to the casual installer])],
 228       USE_MAINTAINER_MODE=$enableval,
 229       USE_MAINTAINER_MODE=no)
 230 if test $USE_MAINTAINER_MODE = yes; then
 231   MAINT=
 232 else
 233   MAINT=#
 234 fi
 235 AC_SUBST(MAINT)
 236
 237 AC_ARG_ENABLE(locallisppath,
 238 [AS_HELP_STRING([--enable-locallisppath=PATH],
 239                 [directories Emacs should search for lisp files specific
 240                  to this site])],
 241 if test "${enableval}" = "no"; then
 242   locallisppath=
 243 elif test "${enableval}" != "yes"; then
 244   locallisppath=${enableval}
 245 fi)
 246
 247 AC_ARG_ENABLE(checking,
 248 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
 249                 [enable expensive run-time checks.  With LIST,
 250                  enable only specific categories of checks.
 251                  Categories are: all,yes,no.
 252                  Flags are: stringbytes, stringoverrun, stringfreelist,
 253                  xmallocoverrun, conslist])],
 254 [ac_checking_flags="${enableval}"],[])
 255 IFS="${IFS=     }"; ac_save_IFS="$IFS"; IFS="$IFS,"
 256 for check in $ac_checking_flags
 257 do
 258         case $check in
 259         # these set all the flags to specific states
 260         yes)            ac_enable_checking=1 ;;
 261         no)             ac_enable_checking= ;
 262                         ac_gc_check_stringbytes= ;
 263                         ac_gc_check_string_overrun= ;
 264                         ac_gc_check_string_free_list= ;
 265                         ac_xmalloc_overrun= ;
 266                         ac_gc_check_cons_list= ;;
 267         all)            ac_enable_checking=1 ;
 268                         ac_gc_check_stringbytes=1 ;
 269                         ac_gc_check_string_overrun=1 ;
 270                         ac_gc_check_string_free_list=1 ;
 271                         ac_xmalloc_overrun=1 ;
 272                         ac_gc_check_cons_list=1 ;;
 273         # these enable particular checks
 274         stringbytes)    ac_gc_check_stringbytes=1 ;;
 275         stringoverrun)  ac_gc_check_string_overrun=1 ;;
 276         stringfreelist) ac_gc_check_string_free_list=1 ;;
 277         xmallocoverrun) ac_xmalloc_overrun=1 ;;
 278         conslist)       ac_gc_check_cons_list=1 ;;
 279         *)      AC_MSG_ERROR(unknown check category $check) ;;
 280         esac
 281 done
 282 IFS="$ac_save_IFS"
 283
 284 if test x$ac_enable_checking != x ; then
 285   AC_DEFINE(ENABLE_CHECKING, 1,
 286 [Enable expensive run-time checking of data types?])
 287 fi
 288 if test x$ac_gc_check_stringbytes != x ; then
 289   AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
 290 [Define this temporarily to hunt a bug.  If defined, the size of
 291    strings is redundantly recorded in sdata structures so that it can
 292    be compared to the sizes recorded in Lisp strings.])
 293 fi
 294 if test x$ac_gc_check_stringoverrun != x ; then
 295   AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
 296 [Define this to check for short string overrun.])
 297 fi
 298 if test x$ac_gc_check_string_free_list != x ; then
 299   AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
 300 [Define this to check the string free list.])
 301 fi
 302 if test x$ac_xmalloc_overrun != x ; then
 303   AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
 304 [Define this to check for malloc buffer overrun.])
 305 fi
 306 if test x$ac_gc_check_cons_list != x ; then
 307   AC_DEFINE(GC_CHECK_CONS_LIST, 1,
 308 [Define this to check for errors in cons list.])
 309 fi
 310
 311 AC_ARG_ENABLE(use-lisp-union-type,
 312 [AS_HELP_STRING([--enable-use-lisp-union-type],
 313                 [use a union for the Lisp_Object data type.
 314                 This is only useful for development for catching certain types of bugs.])],
 315 if test "${enableval}" != "no"; then
 316    AC_DEFINE(USE_LISP_UNION_TYPE, 1,
 317    [Define this to use a lisp union for the Lisp_Object data type.])
 318 fi)
 319
 320
 321 AC_ARG_ENABLE(profiling,
 322 [AS_HELP_STRING([--enable-profiling],
 323                 [build emacs with profiling support.
 324                  This might not work on all platforms])],
 325 [ac_enable_profiling="${enableval}"],[])
 326 if test x$ac_enable_profiling != x ; then
 327    PROFILING_CFLAGS="-DPROFILING=1 -pg"
 328    PROFILING_LDFLAGS="-pg"
 329 else
 330    PROFILING_CFLAGS=
 331    PROFILING_LDFLAGS=
 332 fi
 333 AC_SUBST(PROFILING_CFLAGS)
 334 AC_SUBST(PROFILING_LDFLAGS)
 335
 336 AC_ARG_ENABLE(autodepend,
 337 [AS_HELP_STRING([--enable-autodepend],
 338                 [automatically generate dependencies to .h-files.
 339                  Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
 340                  found])],
 341 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
 342
 343 #### Make srcdir absolute, if it isn't already.  It's important to
 344 #### avoid running the path through pwd unnecessarily, since pwd can
 345 #### give you automounter prefixes, which can go away.  We do all this
 346 #### so Emacs can find its files when run uninstalled.
 347 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
 348 unset CDPATH
 349 case "${srcdir}" in
 350   /* ) ;;
 351   . )
 352     ## We may be able to use the $PWD environment variable to make this
 353     ## absolute.  But sometimes PWD is inaccurate.
 354     ## Note: we used to use ${PWD} at the end instead of `pwd`,
 355     ## but that tested only for a well-formed and valid PWD,
 356     ## it did not object when PWD was well-formed and valid but just wrong.
 357     if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`"  ;
 358     then
 359       srcdir="$PWD"
 360     else
 361       srcdir="`(cd ${srcdir}; pwd)`"
 362     fi
 363   ;;
 364   *  ) srcdir="`(cd ${srcdir}; pwd)`" ;;
 365 esac
 366
 367 #### Check if the source directory already has a configured system in it.
 368 if test `pwd` != `(cd ${srcdir} && pwd)` \
 369    && test -f "${srcdir}/src/config.h" ; then
 370   AC_MSG_WARN([[The directory tree `${srcdir}' is being used
 371    as a build directory right now; it has been configured in its own
 372    right.  To configure in another directory as well, you MUST
 373    use GNU make.  If you do not have GNU make, then you must
 374    now do `make distclean' in ${srcdir},
 375    and then run $0 again.]])
 376 fi
 377
 378 #### Given the configuration name, set machfile and opsysfile to the
 379 #### names of the m/*.h and s/*.h files we should use.
 380
 381 ### Canonicalize the configuration name.
 382
 383 AC_CANONICAL_HOST
 384 canonical=$host
 385 configuration=${host_alias-${build_alias-$host}}
 386
 387 dnl This used to use changequote, but, apart from `changequote is evil'
 388 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
 389 dnl the great gob of text.  Thus it's not processed for possible expansion.
 390 dnl Just make sure the brackets remain balanced.
 391 dnl
 392 dnl Since Emacs can't find matching pairs of quotes, boundaries are
 393 dnl indicated by comments.
 394 dnl quotation begins
 395 [
 396
 397 ### If you add support for a new configuration, add code to this
 398 ### switch statement to recognize your configuration name and select
 399 ### the appropriate operating system and machine description files.
 400
 401 ### You would hope that you could choose an m/*.h file pretty much
 402 ### based on the machine portion of the configuration name, and an s/*.h
 403 ### file based on the operating system portion.  However, it turns out
 404 ### that each m/*.h file is pretty manufacturer-specific - for
 405 ### example mips.h is MIPS
 406 ### So we basically have to have a special case for each
 407 ### configuration name.
 408 ###
 409 ### As far as handling version numbers on operating systems is
 410 ### concerned, make sure things will fail in a fixable way.  If
 411 ### /etc/MACHINES doesn't say anything about version numbers, be
 412 ### prepared to handle anything reasonably.  If version numbers
 413 ### matter, be sure /etc/MACHINES says something about it.
 414
 415 machine='' opsys='' unported=no
 416 case "${canonical}" in
 417
 418   ## FreeBSD ports
 419   *-*-freebsd* )
 420     opsys=freebsd
 421     case "${canonical}" in
 422       alpha*)           machine=alpha ;;
 423       amd64-*|x86_64-*) machine=amdx86-64 ;;
 424       arm*)             machine=arm ;;
 425       ia64-*)           machine=ia64 ;;
 426       i[3456]86-*)      machine=intel386 ;;
 427       powerpc-*)        machine=macppc ;;
 428       sparc-*)          machine=sparc ;;
 429       sparc64-*)        machine=sparc ;;
 430     esac
 431   ;;
 432
 433   ## FreeBSD kernel + glibc based userland
 434   *-*-kfreebsd*gnu* )
 435     opsys=gnu-kfreebsd
 436     case "${canonical}" in
 437       alpha*)           machine=alpha ;;
 438       amd64-*|x86_64-*) machine=amdx86-64 ;;
 439       ia64-*)           machine=ia64 ;;
 440       i[3456]86-*)      machine=intel386 ;;
 441       powerpc-*)        machine=macppc ;;
 442       sparc-*)          machine=sparc ;;
 443       sparc64-*)        machine=sparc ;;
 444     esac
 445   ;;
 446
 447   ## NetBSD ports
 448   *-*-netbsd* )
 449     opsys=netbsd
 450     case "${canonical}" in
 451       alpha*)      machine=alpha ;;
 452       x86_64-*)    machine=amdx86-64 ;;
 453       arm-*)       machine=arm ;;
 454       hppa-*)      machine=hp800 ;;
 455       i[3456]86-*) machine=intel386 ;;
 456       m68k-*)      machine=m68k ;;
 457       powerpc-*)   machine=macppc ;;
 458       mips-*)      machine=mips ;;
 459       mipse[bl]-*) machine=mips ;;
 460       sparc*-)     machine=sparc ;;
 461       vax-*)       machine=vax ;;
 462     esac
 463   ;;
 464
 465   ## OpenBSD ports
 466   *-*-openbsd* )
 467     opsys=openbsd
 468     case "${canonical}" in
 469       alpha*)    machine=alpha ;;
 470       x86_64-*)  machine=amdx86-64 ;;
 471       arm-*)     machine=arm ;;
 472       hppa-*)    machine=hp800 ;;
 473       i386-*)    machine=intel386 ;;
 474       powerpc-*) machine=macppc ;;
 475       sparc*)    machine=sparc ;;
 476       vax-*)     machine=vax ;;
 477     esac
 478   ;;
 479
 480   alpha*-*-linux-gnu* )
 481     machine=alpha opsys=gnu-linux
 482   ;;
 483
 484   arm*-*-linux-gnu* )
 485     machine=arm opsys=gnu-linux
 486   ;;
 487
 488   ## Apple Darwin / Mac OS X
 489   *-apple-darwin* )
 490     case "${canonical}" in
 491       i[3456]86-* )  machine=intel386 ;;
 492       powerpc-* )    machine=macppc ;;
 493       x86_64-* )     machine=amdx86-64 ;;
 494       * )            unported=yes ;;
 495     esac
 496     opsys=darwin
 497     # Define CPP as follows to make autoconf work correctly.
 498     CPP="${CC-cc} -E -no-cpp-precomp"
 499     # Use fink packages if available.
 500     if test -d /sw/include && test -d /sw/lib; then
 501       GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
 502       CPP="${CPP} ${GCC_TEST_OPTIONS}"
 503       NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
 504     fi
 505   ;;
 506
 507   ## HP 9000 series 700 and 800, running HP/UX
 508   hppa*-hp-hpux10.2* )
 509     machine=hp800 opsys=hpux10-20
 510   ;;
 511   hppa*-hp-hpux1[1-9]* )
 512     machine=hp800 opsys=hpux11
 513     CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
 514   ;;
 515
 516   hppa*-*-linux-gnu* )
 517     machine=hp800 opsys=gnu-linux
 518   ;;
 519
 520   ## IBM machines
 521   s390-*-linux-gnu* )
 522     machine=ibms390 opsys=gnu-linux
 523   ;;
 524   s390x-*-linux-gnu* )
 525     machine=ibms390x opsys=gnu-linux
 526   ;;
 527   rs6000-ibm-aix4.[23]* )
 528     machine=ibmrs6000 opsys=aix4-2
 529   ;;
 530   powerpc-ibm-aix4.[23]*  )
 531     machine=ibmrs6000 opsys=aix4-2
 532   ;;
 533   rs6000-ibm-aix[56]* )
 534     machine=ibmrs6000 opsys=aix4-2
 535   ;;
 536   powerpc-ibm-aix[56]*  )
 537     machine=ibmrs6000 opsys=aix4-2
 538   ;;
 539
 540   ## Macintosh PowerPC
 541   powerpc*-*-linux-gnu* )
 542     machine=macppc opsys=gnu-linux
 543   ;;
 544
 545   ## Silicon Graphics machines
 546   ## Iris 4D
 547   mips-sgi-irix6.5 )
 548     machine=iris4d opsys=irix6-5
 549     # Without defining _LANGUAGE_C, things get masked out in the headers
 550     # so that, for instance, grepping for `free' in stdlib.h fails and
 551     # AC_HEADER_STD_C fails.   (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
 552     NON_GNU_CPP="/lib/cpp -D_LANGUAGE_C"
 553     NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
 554   ;;
 555
 556   ## Suns
 557   sparc-*-linux-gnu* | sparc64-*-linux-gnu* )
 558     machine=sparc opsys=gnu-linux
 559   ;;
 560
 561   *-sun-solaris* \
 562     | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
 563     | x86_64-*-solaris2*    | x86_64-*-sunos5*)
 564     case "${canonical}" in
 565       i[3456]86-*-* )     machine=intel386 ;;
 566       amd64-*-*|x86_64-*-*)     machine=amdx86-64 ;;
 567       sparc* )          machine=sparc ;;
 568       * )               unported=yes ;;
 569     esac
 570     case "${canonical}" in
 571       *-sunos5.6* | *-solaris2.6* )
 572                 opsys=sol2-6
 573                 NON_GNU_CPP=/usr/ccs/lib/cpp
 574                 RANLIB="ar -ts"
 575                 ;;
 576       *-sunos5.[7-9]* | *-solaris2.[7-9]* )
 577                 opsys=sol2-6
 578                 emacs_check_sunpro_c=yes
 579                 NON_GNU_CPP=/usr/ccs/lib/cpp
 580                 ;;
 581       *-sunos5* | *-solaris* )
 582                 opsys=sol2-10
 583                 emacs_check_sunpro_c=yes
 584                 NON_GNU_CPP=/usr/ccs/lib/cpp
 585                 ;;
 586     esac
 587     ## Watch out for a compiler that we know will not work.
 588     case "${canonical}" in
 589      *-solaris* | *-sunos5* )
 590                 if [ "x$CC" = x/usr/ucb/cc ]; then
 591                   ## /usr/ucb/cc doesn't work;
 592                   ## we should find some other compiler that does work.
 593                   unset CC
 594                 fi
 595                 ;;
 596       *) ;;
 597     esac
 598   ;;
 599
 600   ## IA-64
 601   ia64*-*-linux* )
 602     machine=ia64 opsys=gnu-linux
 603   ;;
 604
 605   ## Intel 386 machines where we don't care about the manufacturer.
 606   i[3456]86-*-* )
 607     machine=intel386
 608     case "${canonical}" in
 609       *-cygwin )                opsys=cygwin ;;
 610       *-darwin* )               opsys=darwin
 611                                 CPP="${CC-cc} -E -no-cpp-precomp"
 612                                 ;;
 613       *-linux-gnu* )            opsys=gnu-linux ;;
 614       *-sysv4.2uw* )            opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
 615       *-sysv5uw* )              opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
 616       *-sysv5OpenUNIX* )        opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
 617       ## Otherwise, we'll fall through to the generic opsys code at the bottom.
 618     esac
 619   ;;
 620
 621   ## m68k Linux-based GNU system
 622   m68k-*-linux-gnu* )
 623     machine=m68k opsys=gnu-linux
 624   ;;
 625
 626   ## Mips Linux-based GNU system
 627   mips-*-linux-gnu* | mipsel-*-linux-gnu* \
 628     | mips64-*-linux-gnu* | mips64el-*-linux-gnu* )
 629     machine=mips opsys=gnu-linux
 630   ;;
 631
 632   ## AMD x86-64 Linux-based GNU system
 633   x86_64-*-linux-gnu* )
 634     machine=amdx86-64 opsys=gnu-linux
 635   ;;
 636
 637   ## Tensilica Xtensa Linux-based GNU system
 638   xtensa*-*-linux-gnu* )
 639     machine=xtensa opsys=gnu-linux
 640     ;;
 641
 642   ## SuperH Linux-based GNU system
 643   sh[34]*-*-linux-gnu* )
 644     machine=sh3 opsys=gnu-linux
 645   ;;
 646
 647   * )
 648     unported=yes
 649   ;;
 650 esac
 651
 652 ### If the code above didn't choose an operating system, just choose
 653 ### an operating system based on the configuration name.  You really
 654 ### only want to use this when you have no idea what the right
 655 ### operating system is; if you know what operating systems a machine
 656 ### runs, it's cleaner to make it explicit in the case statement
 657 ### above.
 658 if test x"${opsys}" = x; then
 659   case "${canonical}" in
 660     *-gnu* )                            opsys=gnu ;;
 661     * )
 662       unported=yes
 663     ;;
 664   esac
 665 fi
 666
 667 ]
 668 dnl quotation ends
 669
 670 if test $unported = yes; then
 671   AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
 672 Check `etc/MACHINES' for recognized configuration names.])
 673 fi
 674
 675 machfile="m/${machine}.h"
 676 opsysfile="s/${opsys}.h"
 677
 678
 679 #### Choose a compiler.
 680 test -n "$CC" && cc_specified=yes
 681
 682 # Save the value of CFLAGS that the user specified.
 683 SPECIFIED_CFLAGS="$CFLAGS"
 684
 685 dnl Sets GCC=yes if using gcc.
 686 AC_PROG_CC
 687
 688 # On Suns, sometimes $CPP names a directory.
 689 if test -n "$CPP" && test -d "$CPP"; then
 690   CPP=
 691 fi
 692
 693 ## If not using gcc, and on Solaris, and no CPP specified, see if
 694 ## using a Sun compiler, which needs -Xs to prevent whitespace.
 695 if test x"$GCC" != xyes && test x"$emacs_check_sunpro_c" = xyes && \
 696  test x"$CPP" = x; then
 697   AC_MSG_CHECKING([whether we are using a Sun C compiler])
 698   AC_CACHE_VAL(emacs_cv_sunpro_c,
 699   [AC_TRY_LINK([],
 700 [#ifndef __SUNPRO_C
 701 fail;
 702 #endif
 703 ], emacs_cv_sunpro_c=yes, emacs_cv_sunpro_c=no)])
 704   AC_MSG_RESULT($emacs_cv_sunpro_c)
 705
 706   if test x"$emacs_cv_sunpro_c" = xyes; then
 707     NON_GNU_CPP="$CC -E -Xs"
 708   fi
 709 fi
 710
 711 #### Some systems specify a CPP to use unless we are using GCC.
 712 #### Now that we know whether we are using GCC, we can decide whether
 713 #### to use that one.
 714 if test "x$NON_GNU_CPP" != x && test x$GCC != xyes && test "x$CPP" = x
 715 then
 716   CPP="$NON_GNU_CPP"
 717 fi
 718
 719 #### Some systems specify a CC to use unless we are using GCC.
 720 #### Now that we know whether we are using GCC, we can decide whether
 721 #### to use that one.
 722 if test "x$NON_GNU_CC" != x && test x$GCC != xyes &&
 723   test x$cc_specified != xyes
 724 then
 725   CC="$NON_GNU_CC"
 726 fi
 727
 728 if test x$GCC = xyes; then
 729   test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
 730 else
 731   test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
 732 fi
 733
 734 dnl checks for Unix variants
 735 AC_USE_SYSTEM_EXTENSIONS
 736
 737 ### Use -Wno-pointer-sign if the compiler supports it
 738 AC_MSG_CHECKING([whether gcc understands -Wno-pointer-sign])
 739 SAVE_CFLAGS="$CFLAGS"
 740 CFLAGS="$CFLAGS -Wno-pointer-sign"
 741 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 742 if test $has_option = yes; then
 743    C_WARNINGS_SWITCH="-Wno-pointer-sign $C_WARNINGS_SWITCH"
 744 fi
 745 AC_MSG_RESULT($has_option)
 746 CFLAGS="$SAVE_CFLAGS"
 747 unset has_option
 748 unset SAVE_CFLAGS
 749
 750 ### Use -Wdeclaration-after-statement if the compiler supports it
 751 AC_MSG_CHECKING([whether gcc understands -Wdeclaration-after-statement])
 752 SAVE_CFLAGS="$CFLAGS"
 753 CFLAGS="$CFLAGS -Wdeclaration-after-statement"
 754 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 755 if test $has_option = yes; then
 756    C_WARNINGS_SWITCH="-Wdeclaration-after-statement $C_WARNINGS_SWITCH"
 757 fi
 758 AC_MSG_RESULT($has_option)
 759 CFLAGS="$SAVE_CFLAGS"
 760 unset has_option
 761 unset SAVE_CFLAGS
 762
 763 ### Use -Wold-style-definition if the compiler supports it
 764 # This can be removed when conversion to standard C is finished.
 765 AC_MSG_CHECKING([whether gcc understands -Wold-style-definition])
 766 SAVE_CFLAGS="$CFLAGS"
 767 CFLAGS="$CFLAGS -Wold-style-definition"
 768 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 769 if test $has_option = yes; then
 770    C_WARNINGS_SWITCH="-Wold-style-definition $C_WARNINGS_SWITCH"
 771 fi
 772 AC_MSG_RESULT($has_option)
 773 CFLAGS="$SAVE_CFLAGS"
 774 unset has_option
 775 unset SAVE_CFLAGS
 776
 777 ### Use -Wimplicit-function-declaration if the compiler supports it
 778 AC_MSG_CHECKING([whether gcc understands -Wimplicit-function-declaration])
 779 SAVE_CFLAGS="$CFLAGS"
 780 CFLAGS="$CFLAGS -Wimplicit-function-declaration"
 781 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 782 if test $has_option = yes; then
 783    C_WARNINGS_SWITCH="-Wimplicit-function-declaration $C_WARNINGS_SWITCH"
 784 fi
 785 AC_MSG_RESULT($has_option)
 786 CFLAGS="$SAVE_CFLAGS"
 787 unset has_option
 788 unset SAVE_CFLAGS
 789
 790 AC_SUBST(C_WARNINGS_SWITCH)
 791
 792
 793 #### Some other nice autoconf tests.
 794
 795 dnl checks for programs
 796 AC_PROG_CPP
 797 AC_PROG_INSTALL
 798 if test "x$RANLIB" = x; then
 799   AC_PROG_RANLIB
 800 fi
 801
 802 ## Although we're running on an amd64 kernel, we're actually compiling for
 803 ## the x86 architecture.  The user should probably have provided an
 804 ## explicit --build to `configure', but if everything else than the kernel
 805 ## is running in i386 mode, we can help them out.
 806 if test "$machine" = "amdx86-64"; then
 807   AC_CHECK_DECL([i386])
 808   if test "$ac_cv_have_decl_i386" = "yes"; then
 809     canonical=`echo "$canonical" | sed -e 's/^amd64/i386/' -e 's/^x86_64/i386/'`
 810     machine=intel386
 811     machfile="m/${machine}.h"
 812   fi
 813 fi
 814
 815 AC_PATH_PROG(INSTALL_INFO, install-info)
 816 AC_PATH_PROG(INSTALL_INFO, install-info,, /usr/sbin)
 817 AC_PATH_PROG(INSTALL_INFO, install-info,:, /sbin)
 818 dnl Don't use GZIP, which is used by gzip for additional parameters.
 819 AC_PATH_PROG(GZIP_PROG, gzip)
 820
 821
 822 ## Need makeinfo >= 4.6 (?) to build the manuals.
 823 AC_PATH_PROG(MAKEINFO, makeinfo, no)
 824 dnl By this stage, configure has already checked for egrep and set EGREP,
 825 dnl or exited with an error if no egrep was found.
 826 if test "$MAKEINFO" != "no" && \
 827   test x"`$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
 828    MAKEINFO=no
 829 fi
 830
 831 ## Makeinfo is unusual.  For a released Emacs, the manuals are
 832 ## pre-built, and not deleted by the normal clean rules.  makeinfo is
 833 ## therefore in the category of "special tools" not normally required, which
 834 ## configure does not have to check for (eg autoconf itself).
 835 ## In a Bazaar checkout on the other hand, the manuals are not included.
 836 ## So makeinfo is a requirement to build from Bazaar, and configure
 837 ## should test for it as it does for any other build requirement.
 838 ## We use the presence of $srcdir/info/emacs to distinguish a release,
 839 ## with pre-built manuals, from a Bazaar checkout.
 840 if test "$MAKEINFO" = "no"; then
 841   if test "x${with_makeinfo}" = "xno"; then
 842     MAKEINFO=off
 843   elif test ! -e $srcdir/info/emacs; then
 844     AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.6, and your
 845 source tree does not seem to have pre-built manuals in the `info' directory.
 846 Either install a suitable version of makeinfo, or re-run configure
 847 with the `--without-makeinfo' option to build without the manuals.] )
 848   fi
 849 fi
 850
 851 dnl Add our options to ac_link now, after it is set up.
 852
 853 if test x$GCC = xyes && test "x$GCC_LINK_TEST_OPTIONS" != x
 854 then
 855   ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
 856 fi
 857
 858 if test x$GCC = x && test "x$NON_GCC_LINK_TEST_OPTIONS" != x
 859 then
 860   ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
 861 fi
 862
 863 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
 864 dnl If we can link with the flag, it shouldn't do any harm anyhow.
 865 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
 866 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
 867 dnl if not built to support GNU ld.
 868
 869 late_LDFLAGS=$LDFLAGS
 870 if test "$GCC" = yes; then
 871   LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
 872 else
 873   LDFLAGS="$LDFLAGS -znocombreloc"
 874 fi
 875
 876 AC_MSG_CHECKING([for -znocombreloc])
 877 AC_LINK_IFELSE([main(){return 0;}],
 878   [AC_MSG_RESULT(yes)],
 879   LDFLAGS=$late_LDFLAGS
 880   [AC_MSG_RESULT(no)])
 881
 882
 883 # The value of CPP is a quoted variable reference, so we need to do this
 884 # to get its actual value...
 885 CPP=`eval "echo $CPP"`
 886
 887
 888 dnl Not used by any currently supported platform.
 889 dnl The function dump-emacs will not be defined and temacs will do
 890 dnl (load "loadup") automatically unless told otherwise.
 891 CANNOT_DUMP=no
 892 case "$opsys" in
 893   your-opsys-here)
 894    CANNOT_DUMP=yes
 895    AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
 896   ;;
 897 esac
 898 AC_SUBST(CANNOT_DUMP)
 899
 900
 901 UNEXEC_OBJ=unexelf.o
 902 case "$opsys" in
 903   # MSDOS uses unexcoff.o
 904   # MSWindows uses unexw32.o
 905   aix4-2)
 906    UNEXEC_OBJ=unexaix.o
 907    ;;
 908   cygwin)
 909    UNEXEC_OBJ=unexcw.o
 910    ;;
 911   darwin)
 912    UNEXEC_OBJ=unexmacosx.o
 913    ;;
 914   hpux10-20 | hpux11)
 915    UNEXEC_OBJ=unexhp9k800.o
 916    ;;
 917   sol2-10)
 918    # Use the Solaris dldump() function, called from unexsol.c, to dump
 919    # emacs, instead of the generic ELF dump code found in unexelf.c.
 920    # The resulting binary has a complete symbol table, and is better
 921    # for debugging and other observability tools (debuggers, pstack, etc).
 922    #
 923    # If you encounter a problem using dldump(), please consider sending
 924    # a message to the OpenSolaris tools-linking mailing list:
 925    #      http://mail.opensolaris.org/mailman/listinfo/tools-linking
 926    #
 927    # It is likely that dldump() works with older Solaris too, but this has
 928    # not been tested, so for now this change is for Solaris 10 or newer.
 929    UNEXEC_OBJ=unexsol.o
 930    ;;
 931 esac
 932
 933 LD_SWITCH_SYSTEM=
 934 case "$opsys" in
 935   freebsd)
 936    ## Let `ld' find image libs and similar things in /usr/local/lib.
 937    ## The system compiler, GCC, has apparently been modified to not
 938    ## look there, contrary to what a stock GCC would do.
 939    LD_SWITCH_SYSTEM=-L/usr/local/lib
 940    ;;
 941
 942   gnu-linux)
 943    ## cpp test was "ifdef __mips__", but presumably this is equivalent...
 944    test "$machine" = "mips" && LD_SWITCH_SYSTEM="-G 0"
 945    ;;
 946
 947   netbsd)
 948    LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
 949    ;;
 950
 951   openbsd)
 952    ## Han Boetes <han@mijncomputer.nl> says this is necessary,
 953    ## otherwise Emacs dumps core on elf systems.
 954    LD_SWITCH_SYSTEM="-Z"
 955    ;;
 956 esac
 957 AC_SUBST(LD_SWITCH_SYSTEM)
 958
 959 ac_link="$ac_link $LD_SWITCH_SYSTEM"
 960
 961 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_AUX,
 962 ## which has not been defined yet.  When this was handled with cpp,
 963 ## it was expanded to null when configure sourced the s/*.h file.
 964 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
 965 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
 966 ## (or somesuch), but because it is supposed to go at the _front_
 967 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
 968 ## Compare with the gnu-linux case below, which added to the end
 969 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
 970 ## LD_SWITCH_SYSTEM_TEMACS.
 971 case "$opsys" in
 972   netbsd|openbsd)
 973    ## _AUX_RPATH is like _AUX, but uses -rpath instead of -R.
 974    LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_AUX_RPATH) $LD_SWITCH_SYSTEM" ;;
 975 esac
 976
 977
 978 C_SWITCH_MACHINE=
 979 if test "$machine" = "alpha"; then
 980   AC_CHECK_DECL([__ELF__])
 981   if test "$ac_cv_have_decl___ELF__" = "yes"; then
 982     ## With ELF, make sure that all common symbols get allocated to in the
 983     ## data section.  Otherwise, the dump of temacs may miss variables in
 984     ## the shared library that have been initialized.  For example, with
 985     ## GNU libc, __malloc_initialized would normally be resolved to the
 986     ## shared library's .bss section, which is fatal.
 987     if test "x$GCC" = "xyes"; then
 988       C_SWITCH_MACHINE="-fno-common"
 989     else
 990       AC_MSG_ERROR([What gives?  Fix me if DEC Unix supports ELF now.])
 991     fi
 992   else
 993     UNEXEC_OBJ=unexalpha.o
 994   fi
 995 fi
 996 AC_SUBST(C_SWITCH_MACHINE)
 997
 998 AC_SUBST(UNEXEC_OBJ)
 999
1000 C_SWITCH_SYSTEM=
1001 ## Some programs in src produce warnings saying certain subprograms
1002 ## are too complex and need a MAXMEM value greater than 2000 for
1003 ## additional optimization.  --nils@exp-math.uni-essen.de
1004 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1005   C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1006 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1007 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1008 AC_SUBST(C_SWITCH_SYSTEM)
1009
1010
1011 LIBS_SYSTEM=
1012 case "$opsys" in
1013   ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1014   aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1015
1016   freebsd) LIBS_SYSTEM="-lutil" ;;
1017
1018   hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1019
1020   sol2*) LIBS_SYSTEM="-lsocket -lnsl -lkstat" ;;
1021
1022   ## Motif needs -lgen.
1023   unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1024 esac
1025 AC_SUBST(LIBS_SYSTEM)
1026
1027
1028 ### Make sure subsequent tests use flags consistent with the build flags.
1029
1030 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1031   CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1032 else
1033   CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1034 fi
1035
1036 dnl For AC_FUNC_GETLOADAVG, at least:
1037 AC_CONFIG_LIBOBJ_DIR(src)
1038
1039 dnl Do this early because it can frob feature test macros for Unix-98 &c.
1040 AC_SYS_LARGEFILE
1041
1042
1043 ## If user specified a crt-dir, use that unconditionally.
1044 if test "X$CRT_DIR" = "X"; then
1045
1046   case "$canonical" in
1047     x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1048     ## On x86-64 and s390x GNU/Linux distributions, the standard library
1049     ## can be in a variety of places.  We only try /usr/lib64 and /usr/lib.
1050     ## For anything else (eg /usr/lib32), it is up the user to specify
1051     ## the location (bug#5655).
1052     ## Test for crtn.o, not just the directory, because sometimes the
1053     ## directory exists but does not have the relevant files (bug#1287).
1054     ## FIXME better to test for binary compatibility somehow.
1055     test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1056     ;;
1057
1058     powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1059   esac
1060
1061   case "$opsys" in
1062     hpux10-20) CRT_DIR=/lib ;;
1063   esac
1064
1065   ## Default is /usr/lib.
1066   test "X$CRT_DIR" = "X" && CRT_DIR=/usr/lib
1067
1068 else
1069
1070   ## Some platforms don't use any of these files, so it is not
1071   ## appropriate to put this test outside the if block.
1072   test -e $CRT_DIR/crtn.o || test -e $CRT_DIR/crt0.o || \
1073     AC_MSG_ERROR([crt*.o not found in specified location.])
1074
1075 fi
1076
1077 AC_SUBST(CRT_DIR)
1078
1079 LIB_MATH=-lm
1080 LIB_STANDARD=
1081 START_FILES=
1082
1083 case $opsys in
1084   cygwin )
1085     LIB_MATH=
1086     START_FILES='pre-crt0.o'
1087     ;;
1088   darwin )
1089     ## Adding -lm confuses the dynamic linker, so omit it.
1090     LIB_MATH=
1091     START_FILES='pre-crt0.o'
1092     ;;
1093   freebsd )
1094     LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1095     START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1096     ;;
1097   gnu-linux | gnu-kfreebsd )
1098     LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1099     START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1100     ;;
1101   hpux10-20 | hpux11 )
1102     LIB_STANDARD=-lc
1103     START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1104     ;;
1105   netbsd | openbsd )
1106     if test -f $CRT_DIR/crti.o; then
1107         LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1108         START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1109     else
1110         LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1111         START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1112     fi
1113     ;;
1114 esac
1115
1116 AC_SUBST(LIB_MATH)
1117 AC_SUBST(START_FILES)
1118
1119 dnl This function definition taken from Gnome 2.0
1120 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1121 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1122 dnl also defines GSTUFF_PKG_ERRORS on error
1123 AC_DEFUN([PKG_CHECK_MODULES], [
1124   succeeded=no
1125
1126   AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1127
1128   if test "$PKG_CONFIG" = "no" ; then
1129      ifelse([$4], , [AC_MSG_ERROR([
1130       *** 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])
1131   else
1132      PKG_CONFIG_MIN_VERSION=0.9.0
1133      if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1134         AC_MSG_CHECKING(for $2)
1135
1136         if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD; then
1137             AC_MSG_RESULT(yes)
1138             succeeded=yes
1139
1140             AC_MSG_CHECKING($1_CFLAGS)
1141             $1_CFLAGS=`$PKG_CONFIG --cflags "$2"|sed -e 's,///*,/,g'`
1142             AC_MSG_RESULT($$1_CFLAGS)
1143
1144             AC_MSG_CHECKING($1_LIBS)
1145             $1_LIBS=`$PKG_CONFIG --libs "$2"|sed -e 's,///*,/,g'`
1146             AC_MSG_RESULT($$1_LIBS)
1147         else
1148             AC_MSG_RESULT(no)
1149             $1_CFLAGS=""
1150             $1_LIBS=""
1151             ## If we have a custom action on failure, don't print errors, but
1152             ## do set a variable so people can do so.
1153             $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1154             ifelse([$4], ,echo $$1_PKG_ERRORS,)
1155         fi
1156
1157         AC_SUBST($1_CFLAGS)
1158         AC_SUBST($1_LIBS)
1159      else
1160         echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1161         echo "*** See http://www.freedesktop.org/software/pkgconfig"
1162      fi
1163   fi
1164
1165   if test $succeeded = yes; then
1166      ifelse([$3], , :, [$3])
1167   else
1168      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.])], [$4])
1169   fi
1170 ])
1171
1172
1173 if test "${with_sound}" != "no"; then
1174   # Sound support for GNU/Linux and the free BSDs.
1175   AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1176     have_sound_header=yes)
1177   # Emulation library used on NetBSD.
1178   AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1179   AC_SUBST(LIBSOUND)
1180
1181   ALSA_REQUIRED=1.0.0
1182   ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1183   PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1184   if test $HAVE_ALSA = yes; then
1185     SAVE_CFLAGS="$CFLAGS"
1186     SAVE_LDFLAGS="$LDFLAGS"
1187     CFLAGS="$ALSA_CFLAGS $CFLAGS"
1188     LDFLAGS="$ALSA_LIBS $LDFLAGS"
1189     AC_TRY_COMPILE([#include <asoundlib.h>], [snd_lib_error_set_handler (0);],
1190                     emacs_alsa_normal=yes,
1191                     emacs_alsa_normal=no)
1192     if test "$emacs_alsa_normal" != yes; then
1193       AC_TRY_COMPILE([#include <alsa/asoundlib.h>],
1194                      [snd_lib_error_set_handler (0);],
1195                      emacs_alsa_subdir=yes,
1196                      emacs_alsa_subdir=no)
1197       if test "$emacs_alsa_subdir" != yes; then
1198         AC_MSG_ERROR([pkg-config found alsa, but it does not compile.  See config.log for error messages.])
1199       fi
1200       ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1201     fi
1202
1203     CFLAGS="$SAVE_CFLAGS"
1204     LDFLAGS="$SAVE_LDFLAGS"
1205     LIBSOUND="$LIBSOUND $ALSA_LIBS"
1206     CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1207     AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1208   fi
1209
1210   dnl Define HAVE_SOUND if we have sound support.  We know it works and
1211   dnl compiles only on the specified platforms.  For others, it
1212   dnl probably doesn't make sense to try.
1213   if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1214      case "$opsys" in
1215        dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1216        gnu-linux|freebsd|netbsd)
1217          AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1218          ;;
1219      esac
1220   fi
1221
1222   AC_SUBST(CFLAGS_SOUND)
1223 fi
1224
1225 dnl checks for header files
1226 AC_CHECK_HEADERS(sys/select.h sys/timeb.h sys/time.h unistd.h utime.h \
1227   linux/version.h sys/systeminfo.h termios.h limits.h string.h stdlib.h \
1228   stdio_ext.h fcntl.h strings.h coff.h pty.h sys/mman.h \
1229   sys/param.h sys/vlimit.h sys/resource.h locale.h sys/_mbstate_t.h \
1230   sys/utsname.h pwd.h utmp.h dirent.h util.h)
1231
1232 AC_MSG_CHECKING(if personality LINUX32 can be set)
1233 AC_TRY_COMPILE([#include <sys/personality.h>], [personality (PER_LINUX32)],
1234                emacs_cv_personality_linux32=yes,
1235                emacs_cv_personality_linux32=no)
1236 AC_MSG_RESULT($emacs_cv_personality_linux32)
1237
1238 if test $emacs_cv_personality_linux32 = yes; then
1239   AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1240             [Define to 1 if personality LINUX32 can be set.])
1241 fi
1242
1243 dnl On Solaris 8 there's a compilation warning for term.h because
1244 dnl it doesn't define `bool'.
1245 AC_CHECK_HEADERS(term.h, , , -)
1246 AC_HEADER_STDC
1247 AC_HEADER_TIME
1248 AC_CHECK_DECLS([sys_siglist])
1249 if test $ac_cv_have_decl_sys_siglist != yes; then
1250   # For Tru64, at least:
1251   AC_CHECK_DECLS([__sys_siglist])
1252   if test $ac_cv_have_decl___sys_siglist = yes; then
1253     AC_DEFINE(sys_siglist, __sys_siglist,
1254               [Define to any substitute for sys_siglist.])
1255   fi
1256 fi
1257 AC_HEADER_SYS_WAIT
1258
1259 dnl Some systems have utime.h but don't declare the struct anyplace.
1260 AC_CACHE_CHECK(for struct utimbuf, emacs_cv_struct_utimbuf,
1261 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
1262 #include <sys/time.h>
1263 #include <time.h>
1264 #else
1265 #ifdef HAVE_SYS_TIME_H
1266 #include <sys/time.h>
1267 #else
1268 #include <time.h>
1269 #endif
1270 #endif
1271 #ifdef HAVE_UTIME_H
1272 #include <utime.h>
1273 #endif], [static struct utimbuf x; x.actime = x.modtime;],
1274   emacs_cv_struct_utimbuf=yes, emacs_cv_struct_utimbuf=no))
1275 if test $emacs_cv_struct_utimbuf = yes; then
1276   AC_DEFINE(HAVE_STRUCT_UTIMBUF, 1, [Define to 1 if `struct utimbuf' is declared by <utime.h>.])
1277 fi
1278
1279 dnl checks for typedefs
1280 AC_TYPE_SIGNAL
1281
1282 dnl Check for speed_t typedef.
1283 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1284   [AC_TRY_COMPILE([#include <termios.h>], [speed_t x = 1;],
1285     emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1286 if test $emacs_cv_speed_t = yes; then
1287   AC_DEFINE(HAVE_SPEED_T, 1,
1288            [Define to 1 if `speed_t' is declared by <termios.h>.])
1289 fi
1290
1291 AC_CACHE_CHECK(for struct timeval, emacs_cv_struct_timeval,
1292 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
1293 #include <sys/time.h>
1294 #include <time.h>
1295 #else
1296 #ifdef HAVE_SYS_TIME_H
1297 #include <sys/time.h>
1298 #else
1299 #include <time.h>
1300 #endif
1301 #endif], [static struct timeval x; x.tv_sec = x.tv_usec;],
1302   emacs_cv_struct_timeval=yes, emacs_cv_struct_timeval=no))
1303 HAVE_TIMEVAL=$emacs_cv_struct_timeval
1304 if test $emacs_cv_struct_timeval = yes; then
1305   AC_DEFINE(HAVE_TIMEVAL, 1, [Define to 1 if `struct timeval' is declared by <sys/time.h>.])
1306 fi
1307
1308 AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1309 AC_TRY_COMPILE([#include <math.h>],
1310 [static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;],
1311   emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1312 HAVE_EXCEPTION=$emacs_cv_struct_exception
1313 if test $emacs_cv_struct_exception != yes; then
1314   AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])
1315 fi
1316
1317 AC_CHECK_HEADERS(sys/socket.h)
1318 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1319 #if HAVE_SYS_SOCKET_H
1320 #include <sys/socket.h>
1321 #endif])
1322
1323 dnl checks for structure members
1324 AC_STRUCT_TM
1325 AC_STRUCT_TIMEZONE
1326 AC_CHECK_MEMBER(struct tm.tm_gmtoff,
1327                 [AC_DEFINE(HAVE_TM_GMTOFF, 1,
1328                            [Define to 1 if `tm_gmtoff' is member of `struct tm'.])],,
1329                 [#include <time.h>])
1330 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1331                   struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1332                   struct ifreq.ifr_addr], , ,
1333                  [AC_INCLUDES_DEFAULT
1334 #if HAVE_SYS_SOCKET_H
1335 #include <sys/socket.h>
1336 #endif
1337 #if HAVE_NET_IF_H
1338 #include <net/if.h>
1339 #endif])
1340
1341 dnl checks for compiler characteristics
1342
1343 dnl Testing __STDC__ to determine prototype support isn't good enough.
1344 dnl DEC C, for instance, doesn't define it with default options, and
1345 dnl is used on 64-bit systems (OSF Alphas).  Similarly for volatile
1346 dnl and void *.
1347 AC_C_PROTOTYPES
1348 AC_C_VOLATILE
1349 AC_C_CONST
1350 dnl This isn't useful because we can't turn on use of `inline' unless
1351 dnl the compiler groks `extern inline'.
1352 dnl AC_C_INLINE
1353 AC_CACHE_CHECK([for void * support], emacs_cv_void_star,
1354   [AC_TRY_COMPILE(, [void * foo;],
1355                    emacs_cv_void_star=yes, emacs_cv_void_star=no)])
1356 if test $emacs_cv_void_star = yes; then
1357   AC_DEFINE(POINTER_TYPE, void)
1358 else
1359   AC_DEFINE(POINTER_TYPE, char)
1360 fi
1361 AH_TEMPLATE(POINTER_TYPE,
1362             [Define as `void' if your compiler accepts `void *'; otherwise
1363              define as `char'.])dnl
1364
1365 dnl Check for endianess
1366 AC_C_BIGENDIAN
1367
1368 dnl check for Make feature
1369 AC_PROG_MAKE_SET
1370
1371 DEPFLAGS=
1372 MKDEPDIR=":"
1373 deps_frag=deps.mk
1374 dnl check for GNU Make if we have GCC and autodepend is on.
1375 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1376    AC_MSG_CHECKING([whether we are using GNU Make])
1377    HAVE_GNU_MAKE=no
1378    testval=`make --version 2>/dev/null | grep 'GNU Make'`
1379    if test "x$testval" != x; then
1380       HAVE_GNU_MAKE=yes
1381    else
1382       ac_enable_autodepend=no
1383    fi
1384    AC_MSG_RESULT([$HAVE_GNU_MAKE])
1385    if test $HAVE_GNU_MAKE = yes; then
1386       AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1387       SAVE_CFLAGS="$CFLAGS"
1388       CFLAGS="$CFLAGS -MMD -MF deps.d"
1389       AC_TRY_COMPILE([], [], , ac_enable_autodepend=no)
1390       CFLAGS="$SAVE_CFLAGS"
1391       test -f deps.d || ac_enable_autodepend=no
1392       rm -rf deps.d
1393       AC_MSG_RESULT([$ac_enable_autodepend])
1394    fi
1395    if test $ac_enable_autodepend = yes; then
1396       DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d'
1397       ## In parallel builds, another make might create depdir between
1398       ## the first test and mkdir, so stick another test on the end.
1399       ## Or use mkinstalldirs?  mkdir -p is not portable.
1400       MKDEPDIR='test -d ${DEPDIR} || mkdir ${DEPDIR} || test -d ${DEPDIR}'
1401       deps_frag=autodeps.mk
1402    fi
1403 fi
1404 deps_frag=$srcdir/src/$deps_frag
1405 AC_SUBST(MKDEPDIR)
1406 AC_SUBST(DEPFLAGS)
1407 AC_SUBST_FILE(deps_frag)
1408
1409
1410 dnl checks for operating system services
1411 AC_SYS_LONG_FILE_NAMES
1412
1413 #### Choose a window system.
1414
1415 AC_PATH_X
1416 if test "$no_x" = yes; then
1417   window_system=none
1418 else
1419   window_system=x11
1420 fi
1421
1422 ## Workaround for bug in autoconf <= 2.62.
1423 ## http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01551.html
1424 ## No need to do anything special for these standard directories.
1425 if test -n "${x_libraries}" && test x"${x_libraries}" != xNONE; then
1426
1427    x_libraries=`echo :${x_libraries}: | sed -e 's|:/usr/lib64:|:|g' -e 's|:/lib64:|:|g' -e 's|^:||' -e 's|:$||'`
1428
1429 fi
1430
1431 LD_SWITCH_X_SITE_AUX=
1432 LD_SWITCH_X_SITE_AUX_RPATH=
1433 if test "${x_libraries}" != NONE; then
1434   if test -n "${x_libraries}"; then
1435     LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1436     LD_SWITCH_X_SITE_AUX=-R`echo ${x_libraries} | sed -e "s/:/ -R/g"`
1437     LD_SWITCH_X_SITE_AUX_RPATH=`echo ${LD_SWITCH_X_SITE_AUX} | sed -e 's/-R/-Wl,-rpath,/'`
1438   fi
1439   x_default_search_path=""
1440   x_search_path=${x_libraries}
1441   if test -z "${x_search_path}"; then
1442     x_search_path=/usr/lib
1443   fi
1444   for x_library in `echo ${x_search_path}: | \
1445                     sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1446     x_search_path="\
1447 ${x_library}/X11/%L/%T/%N%C%S:\
1448 ${x_library}/X11/%l/%T/%N%C%S:\
1449 ${x_library}/X11/%T/%N%C%S:\
1450 ${x_library}/X11/%L/%T/%N%S:\
1451 ${x_library}/X11/%l/%T/%N%S:\
1452 ${x_library}/X11/%T/%N%S"
1453     if test x"${x_default_search_path}" = x; then
1454       x_default_search_path=${x_search_path}
1455     else
1456       x_default_search_path="${x_search_path}:${x_default_search_path}"
1457     fi
1458   done
1459 fi
1460 AC_SUBST(LD_SWITCH_X_SITE_AUX)
1461 AC_SUBST(LD_SWITCH_X_SITE_AUX_RPATH)
1462
1463 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1464   C_SWITCH_X_SITE=-I`echo ${x_includes} | sed -e "s/:/ -I/g"`
1465 fi
1466
1467 if test x"${x_includes}" = x; then
1468   bitmapdir=/usr/include/X11/bitmaps
1469 else
1470   # accumulate include directories that have X11 bitmap subdirectories
1471   bmd_acc="dummyval"
1472   for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1473     if test -d "${bmd}/X11/bitmaps"; then
1474       bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1475     fi
1476     if test -d "${bmd}/bitmaps"; then
1477       bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1478     fi
1479   done
1480   if test ${bmd_acc} != "dummyval"; then
1481     bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1482   fi
1483 fi
1484
1485 HAVE_NS=no
1486 NS_IMPL_COCOA=no
1487 NS_IMPL_GNUSTEP=no
1488 tmp_CPPFLAGS="$CPPFLAGS"
1489 tmp_CFLAGS="$CFLAGS"
1490 CPPFLAGS="$CPPFLAGS -x objective-c"
1491 CFLAGS="$CFLAGS -x objective-c"
1492 TEMACS_LDFLAGS2="\${LDFLAGS} \${PROFILING_LDFLAGS}"
1493 dnl I don't think it's especially important, but src/Makefile.in
1494 dnl (now the only user of ns_appdir) used to go to the trouble of adding a
1495 dnl trailing "/" to it, so now we do it here.
1496 if test "${with_ns}" != no; then
1497   if test "${opsys}" = darwin; then
1498      NS_IMPL_COCOA=yes
1499      ns_appdir=`pwd`/nextstep/Emacs.app/
1500      ns_appbindir=${ns_appdir}Contents/MacOS/
1501      ns_appresdir=${ns_appdir}Contents/Resources
1502      ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base
1503   elif test -f $GNUSTEP_CONFIG_FILE; then
1504      NS_IMPL_GNUSTEP=yes
1505      ns_appdir=`pwd`/nextstep/Emacs.app/
1506      ns_appbindir=${ns_appdir}
1507      ns_appresdir=${ns_appdir}Resources
1508      ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base
1509      dnl FIXME sourcing this several times in subshells seems inefficient.
1510      GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1511      GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1512      dnl I seemed to need these as well with GNUstep-startup 0.25.
1513      GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1514      GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1515      test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1516        GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1517      test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1518        GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1519      CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1520      CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1521      LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1522      LIB_STANDARD=
1523      START_FILES=
1524      TEMACS_LDFLAGS2=
1525   fi
1526   AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1527                   [AC_MSG_ERROR([`--with-ns' was specified, but the include
1528   files are missing or cannot be compiled.])])
1529   NS_HAVE_NSINTEGER=yes
1530   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1531                                      [NSInteger i;])],
1532                     ns_have_nsinteger=yes,
1533                     ns_have_nsinteger=no)
1534   if test $ns_have_nsinteger = no; then
1535     NS_HAVE_NSINTEGER=no
1536   fi
1537 fi
1538 AC_SUBST(TEMACS_LDFLAGS2)
1539
1540 ns_frag=/dev/null
1541 NS_OBJ=
1542 NS_SUPPORT=
1543 if test "${HAVE_NS}" = yes; then
1544   window_system=nextstep
1545   with_xft=no
1546   # set up packaging dirs
1547   exec_prefix=${ns_appbindir}
1548   libexecdir=${ns_appbindir}/libexec
1549   if test "${EN_NS_SELF_CONTAINED}" = yes; then
1550      prefix=${ns_appresdir}
1551   fi
1552   ns_frag=$srcdir/src/ns.mk
1553   NS_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o fontset.o fringe.o image.o"
1554   NS_SUPPORT="\${lispsource}emacs-lisp/easymenu.elc \${lispsource}term/ns-win.elc"
1555 fi
1556 CFLAGS="$tmp_CFLAGS"
1557 CPPFLAGS="$tmp_CPPFLAGS"
1558 AC_SUBST(NS_OBJ)
1559 AC_SUBST(NS_SUPPORT)
1560 AC_SUBST(LIB_STANDARD)
1561 AC_SUBST_FILE(ns_frag)
1562
1563 case "${window_system}" in
1564   x11 )
1565     HAVE_X_WINDOWS=yes
1566     HAVE_X11=yes
1567     case "${with_x_toolkit}" in
1568       athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1569       motif ) USE_X_TOOLKIT=MOTIF ;;
1570       gtk ) with_gtk=yes
1571 dnl Dont set this for GTK.  A lot of tests below assumes Xt when
1572 dnl USE_X_TOOLKIT is set.
1573             USE_X_TOOLKIT=none ;;
1574       gtk3 ) with_gtk3=yes
1575              USE_X_TOOLKIT=none ;;
1576       no ) USE_X_TOOLKIT=none ;;
1577 dnl If user did not say whether to use a toolkit, make this decision later:
1578 dnl use the toolkit if we have gtk, or X11R5 or newer.
1579       * ) USE_X_TOOLKIT=maybe ;;
1580     esac
1581   ;;
1582   nextstep | none )
1583     HAVE_X_WINDOWS=no
1584     HAVE_X11=no
1585     USE_X_TOOLKIT=none
1586   ;;
1587 esac
1588
1589 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1590    AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1591    if test "$HAVE_XSERVER" = true ||
1592       test -n "$DISPLAY" ||
1593       test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1594         AC_MSG_ERROR([You seem to be running X, but no X development libraries
1595 were found.  You should install the relevant development files for X
1596 and for the toolkit you want, such as Gtk+, Lesstif or Motif.  Also make
1597 sure you have development files for image handling, i.e.
1598 tiff, gif, jpeg, png and xpm.
1599 If you are sure you want Emacs compiled without X window support, pass
1600   --without-x
1601 to configure.])
1602    fi
1603 fi
1604
1605 ### If we're using X11, we should use the X menu package.
1606 HAVE_MENUS=no
1607 case ${HAVE_X11} in
1608   yes ) HAVE_MENUS=yes ;;
1609 esac
1610
1611 # Do the opsystem or machine files prohibit the use of the GNU malloc?
1612 # Assume not, until told otherwise.
1613 GNU_MALLOC=yes
1614 doug_lea_malloc=yes
1615 AC_CHECK_FUNC(malloc_get_state, ,doug_lea_malloc=no)
1616 AC_CHECK_FUNC(malloc_set_state, ,doug_lea_malloc=no)
1617 AC_CACHE_CHECK(whether __after_morecore_hook exists,
1618                emacs_cv_var___after_morecore_hook,
1619 [AC_TRY_LINK([extern void (* __after_morecore_hook)();],[__after_morecore_hook = 0],
1620   emacs_cv_var___after_morecore_hook=yes,
1621   emacs_cv_var___after_morecore_hook=no)])
1622 if test $emacs_cv_var___after_morecore_hook = no; then
1623   doug_lea_malloc=no
1624 fi
1625
1626
1627 dnl See comments in aix4-2.h about maybe using system malloc there.
1628 system_malloc=no
1629 case "$opsys" in
1630   ## darwin ld insists on the use of malloc routines in the System framework.
1631   darwin|sol2-10) system_malloc=yes ;;
1632 esac
1633
1634 if test "${system_malloc}" = "yes"; then
1635   AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1636   GNU_MALLOC=no
1637   GNU_MALLOC_reason="
1638     (The GNU allocators don't work with this system configuration.)"
1639   GMALLOC_OBJ=
1640   VMLIMIT_OBJ=
1641 else
1642   test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1643   VMLIMIT_OBJ=vm-limit.o
1644 fi
1645 AC_SUBST(GMALLOC_OBJ)
1646 AC_SUBST(VMLIMIT_OBJ)
1647
1648 if test "$doug_lea_malloc" = "yes" ; then
1649   if test "$GNU_MALLOC" = yes ; then
1650     GNU_MALLOC_reason="
1651       (Using Doug Lea's new malloc from the GNU C Library.)"
1652   fi
1653   AC_DEFINE(DOUG_LEA_MALLOC, 1,
1654             [Define to 1 if you are using the GNU C Library.])
1655
1656   ## Use mmap directly for allocating larger buffers.
1657   ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1658   ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1659   ## Does the AC_FUNC_MMAP test below make this check unecessary?
1660   case "$opsys" in
1661     gnu*) REL_ALLOC=no ;;
1662   esac
1663 fi
1664
1665 if test x"${REL_ALLOC}" = x; then
1666   REL_ALLOC=${GNU_MALLOC}
1667 fi
1668
1669 use_mmap_for_buffers=no
1670 case "$opsys" in
1671   freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1672 esac
1673
1674 AC_FUNC_MMAP
1675 if test $use_mmap_for_buffers = yes; then
1676   AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1677   REL_ALLOC=no
1678 fi
1679
1680 LIBS="$LIBS_SYSTEM $LIBS"
1681
1682 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1683 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1684 AC_CHECK_LIB(dnet, dnet_ntoa)
1685 dnl This causes -lresolv to get used in subsequent tests,
1686 dnl which causes failures on some systems such as HPUX 9.
1687 dnl AC_CHECK_LIB(resolv, gethostbyname)
1688
1689 dnl FIXME replace main with a function we actually want from this library.
1690 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1691
1692 AC_CHECK_LIB(pthreads, cma_open)
1693
1694 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1695 ## HAVE_LIBPTHREADS.  That was not defined earlier in configure when
1696 ## the system file was sourced.  Hence the value of LIBS_SYSTEM
1697 ## added to LIBS in configure would never contain the pthreads part,
1698 ## but the value used in Makefiles might.  FIXME?
1699 ##
1700 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1701 ## be harmless on older versions of X where it happens to exist.
1702 test "$opsys" = "aix4-2" && \
1703   test $ac_cv_lib_pthreads_cma_open = yes && \
1704   LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1705
1706 dnl Check for need for bigtoc support on IBM AIX
1707
1708 case ${host_os} in
1709 aix*)
1710   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1711     case $GCC in
1712     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1713     *) gdb_cv_bigtoc=-bbigtoc ;;
1714     esac
1715
1716     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1717     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1718   ])
1719   ;;
1720 esac
1721
1722 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1723 # used for the tests that follow.  We set them back to REAL_CFLAGS and
1724 # REAL_CPPFLAGS later on.
1725
1726 REAL_CFLAGS="$CFLAGS"
1727 REAL_CPPFLAGS="$CPPFLAGS"
1728
1729 if test "${HAVE_X11}" = "yes"; then
1730   DEFS="$C_SWITCH_X_SITE $DEFS"
1731   LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1732   LIBS="-lX11 $LIBS"
1733   CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1734   CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1735
1736   # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1737   # This is handled by LD_SWITCH_X_SITE_AUX during the real build,
1738   # but it's more convenient here to set LD_RUN_PATH
1739   # since this also works on hosts that don't understand LD_SWITCH_X_SITE_AUX.
1740   if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1741     LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1742     export LD_RUN_PATH
1743   fi
1744
1745   if test "${opsys}" = "gnu-linux"; then
1746     AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1747     AC_TRY_LINK([],
1748      [XOpenDisplay ("foo");],
1749      [xlinux_first_failure=no],
1750      [xlinux_first_failure=yes])
1751     if test "${xlinux_first_failure}" = "yes"; then
1752       OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1753       OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1754       OLD_CPPFLAGS="$CPPFLAGS"
1755       OLD_LIBS="$LIBS"
1756       LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1757       C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1758       CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1759       LIBS="$LIBS -b i486-linuxaout"
1760       AC_TRY_LINK([],
1761        [XOpenDisplay ("foo");],
1762        [xlinux_second_failure=no],
1763        [xlinux_second_failure=yes])
1764       if test "${xlinux_second_failure}" = "yes"; then
1765         # If we get the same failure with -b, there is no use adding -b.
1766         # So take it out.  This plays safe.
1767         LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1768         C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1769         CPPFLAGS="$OLD_CPPFLAGS"
1770         LIBS="$OLD_LIBS"
1771         AC_MSG_RESULT(no)
1772       else
1773         AC_MSG_RESULT(yes)
1774       fi
1775     else
1776       AC_MSG_RESULT(no)
1777     fi
1778   fi
1779
1780   # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1781   # header files included from there.
1782   AC_MSG_CHECKING(for Xkb)
1783   AC_TRY_LINK([#include <X11/Xlib.h>
1784 #include <X11/XKBlib.h>],
1785         [XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);],
1786         emacs_xkb=yes, emacs_xkb=no)
1787   AC_MSG_RESULT($emacs_xkb)
1788   if test $emacs_xkb = yes; then
1789     AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1790   fi
1791
1792   AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1793 XScreenNumberOfScreen XSetWMProtocols)
1794 fi
1795
1796 if test "${window_system}" = "x11"; then
1797   AC_MSG_CHECKING(X11 version 6)
1798   AC_CACHE_VAL(emacs_cv_x11_version_6,
1799   [AC_TRY_LINK([#include <X11/Xlib.h>],
1800 [#if XlibSpecificationRelease < 6
1801 fail;
1802 #endif
1803 ], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1804   if test $emacs_cv_x11_version_6 = yes; then
1805     AC_MSG_RESULT(6 or newer)
1806     AC_DEFINE(HAVE_X11R6, 1,
1807               [Define to 1 if you have the X11R6 or newer version of Xlib.])
1808     AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1809     ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1810     ## XIM support.
1811     case "$opsys" in
1812       sol2-*) : ;;
1813       *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1814            [Define if you have usable X11R6-style XIM support.])
1815          ;;
1816     esac
1817   else
1818     AC_MSG_RESULT(before 6)
1819   fi
1820 fi
1821
1822
1823 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1824 HAVE_RSVG=no
1825 if test "${HAVE_X11}" = "yes" || test "${NS_IMPL_GNUSTEP}" = "yes"; then
1826   if test "${with_rsvg}" != "no"; then
1827     RSVG_REQUIRED=2.11.0
1828     RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1829
1830     PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1831     AC_SUBST(RSVG_CFLAGS)
1832     AC_SUBST(RSVG_LIBS)
1833
1834     if test $HAVE_RSVG = yes; then
1835       AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1836       CFLAGS="$CFLAGS $RSVG_CFLAGS"
1837       LIBS="$RSVG_LIBS $LIBS"
1838     fi
1839   fi
1840 fi
1841
1842 HAVE_IMAGEMAGICK=no
1843 if test "${with_imagemagick}" != "no"; then
1844   IMAGEMAGICK_MODULE="Wand"
1845   PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1846   AC_SUBST(IMAGEMAGICK_CFLAGS)
1847   AC_SUBST(IMAGEMAGICK_LIBS)
1848
1849   if test $HAVE_IMAGEMAGICK = yes; then
1850     AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1851     CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1852     LIBS="$IMAGEMAGICK_LIBS $LIBS"
1853     AC_CHECK_FUNCS(MagickExportImagePixels)
1854   fi
1855 fi
1856
1857
1858 HAVE_GTK=no
1859 if test "${with_gtk3}" = "yes"; then
1860   GLIB_REQUIRED=2.6
1861   GTK_REQUIRED=2.90
1862   GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1863
1864   dnl Checks for libraries.
1865   PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1866   if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1867      AC_MSG_ERROR($GTK_PKG_ERRORS)
1868   fi
1869 fi
1870
1871 if test "$pkg_check_gtk" != "yes"; then
1872   HAVE_GTK=no
1873 if test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1874   GLIB_REQUIRED=2.6
1875   GTK_REQUIRED=2.6
1876   GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1877
1878   dnl Checks for libraries.
1879   PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1880   if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1881      AC_MSG_ERROR($GTK_PKG_ERRORS)
1882   fi
1883 fi
1884 fi
1885
1886 GTK_OBJ=
1887 if test x"$pkg_check_gtk" = xyes; then
1888
1889   AC_SUBST(GTK_CFLAGS)
1890   AC_SUBST(GTK_LIBS)
1891   C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1892   CFLAGS="$CFLAGS $GTK_CFLAGS"
1893   LIBS="$GTK_LIBS $LIBS"
1894   dnl Try to compile a simple GTK program.
1895   GTK_COMPILES=no
1896   AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1897   if test "${GTK_COMPILES}" != "yes"; then
1898     if test "$USE_X_TOOLKIT" != "maybe"; then
1899       AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log.  Maybe some x11-devel files missing?]);
1900     fi
1901   else
1902     HAVE_GTK=yes
1903     AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1904     GTK_OBJ=gtkutil.o
1905     USE_X_TOOLKIT=none
1906     if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1907       :
1908     else
1909       AC_MSG_WARN([[Your version of Gtk+ will have problems with
1910        closing open displays.  This is no problem if you just use
1911        one display, but if you use more than one and close one of them
1912        Emacs may crash.]])
1913       sleep 3
1914     fi
1915   fi
1916
1917 fi
1918 AC_SUBST(GTK_OBJ)
1919
1920
1921 if test "${HAVE_GTK}" = "yes"; then
1922
1923   dnl  GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1924   dnl  a lot if #ifdef:s, say we have toolkit scrollbars.
1925   if test "$with_toolkit_scroll_bars" != no; then
1926     with_toolkit_scroll_bars=yes
1927   fi
1928
1929   dnl  Check if we have the old file selection dialog declared and
1930   dnl  in the link library.  In 2.x it may be in the library,
1931   dnl  but not declared if deprecated featured has been selected out.
1932   dnl  AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1933   HAVE_GTK_FILE_SELECTION=no
1934   AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1935                    HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1936 #include <gtk/gtk.h>])
1937   if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1938     AC_CHECK_FUNCS(gtk_file_selection_new)
1939   fi
1940
1941   dnl Check if pthreads are available.  Emacs only needs this when using
1942   dnl gtk_file_chooser under Gnome.
1943     HAVE_GTK_AND_PTHREAD=no
1944     AC_CHECK_HEADERS(pthread.h)
1945     if test "$ac_cv_header_pthread_h"; then
1946       AC_CHECK_LIB(pthread, pthread_self, HAVE_GTK_AND_PTHREAD=yes)
1947     fi
1948     if test "$HAVE_GTK_AND_PTHREAD" = yes; then
1949       case "${canonical}" in
1950         *-hpux*) ;;
1951         *) GTK_LIBS="$GTK_LIBS -lpthread" ;;
1952       esac
1953       AC_DEFINE(HAVE_GTK_AND_PTHREAD, 1,
1954                [Define to 1 if you have GTK and pthread (-lpthread).])
1955     fi
1956
1957   dnl Check for functions introduced in 2.14 and later.
1958   AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
1959                  gtk_dialog_get_action_area gtk_widget_get_sensitive \
1960                  gtk_widget_get_mapped gtk_adjustment_get_page_size \
1961                  gtk_orientable_set_orientation)
1962
1963 fi
1964
1965 dnl D-Bus has been tested under GNU/Linux only.  Must be adapted for
1966 dnl other platforms.  Support for higher D-Bus versions than 1.0 is
1967 dnl also not configured.
1968 HAVE_DBUS=no
1969 DBUS_OBJ=
1970 if test "${with_dbus}" = "yes"; then
1971    PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
1972    if test "$HAVE_DBUS" = yes; then
1973      LIBS="$LIBS $DBUS_LIBS"
1974      AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
1975      AC_CHECK_FUNCS([dbus_watch_get_unix_fd])
1976      DBUS_OBJ=dbusbind.o
1977    fi
1978 fi
1979 AC_SUBST(DBUS_OBJ)
1980
1981 dnl GConf has been tested under GNU/Linux only.
1982 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
1983 HAVE_GCONF=no
1984 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
1985    PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
1986    if test "$HAVE_GCONF" = yes; then
1987       AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
1988    fi
1989 fi
1990
1991 dnl SELinux is available for GNU/Linux only.
1992 HAVE_LIBSELINUX=no
1993 LIBSELINUX_LIBS=
1994 if test "${with_selinux}" = "yes"; then
1995    AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
1996    if test "$HAVE_LIBSELINUX" = yes; then
1997       AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
1998       LIBSELINUX_LIBS=-lselinux
1999    fi
2000 fi
2001 AC_SUBST(LIBSELINUX_LIBS)
2002
2003 HAVE_GNUTLS=no
2004 if test "${with_gnutls}" = "yes" ; then
2005   PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.2.4], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2006   if test "${HAVE_GNUTLS}" = "yes"; then
2007     AC_DEFINE(HAVE_GNUTLS)
2008   fi
2009 fi
2010 AC_SUBST(LIBGNUTLS_LIBS)
2011 AC_SUBST(LIBGNUTLS_CFLAGS)
2012
2013 dnl Do not put whitespace before the #include statements below.
2014 dnl Older compilers (eg sunos4 cc) choke on it.
2015 HAVE_XAW3D=no
2016 LUCID_LIBW=
2017 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2018   if test "$with_xaw3d" != no; then
2019     AC_MSG_CHECKING(for xaw3d)
2020     AC_CACHE_VAL(emacs_cv_xaw3d,
2021     [AC_TRY_LINK([
2022 #include <X11/Intrinsic.h>
2023 #include <X11/Xaw3d/Simple.h>],
2024       [],
2025       emacs_cv_xaw3d=yes,
2026       emacs_cv_xaw3d=no)])
2027   else
2028     emacs_cv_xaw3d=no
2029   fi
2030   if test $emacs_cv_xaw3d = yes; then
2031     AC_MSG_RESULT([yes; using Lucid toolkit])
2032     USE_X_TOOLKIT=LUCID
2033     HAVE_XAW3D=yes
2034     LUCID_LIBW=-lXaw3d
2035     AC_DEFINE(HAVE_XAW3D, 1,
2036               [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2037   else
2038     AC_MSG_RESULT(no)
2039     AC_MSG_CHECKING(for libXaw)
2040     AC_CACHE_VAL(emacs_cv_xaw,
2041     [AC_TRY_LINK([
2042 #include <X11/Intrinsic.h>
2043 #include <X11/Xaw/Simple.h>],
2044       [],
2045       emacs_cv_xaw=yes,
2046       emacs_cv_xaw=no)])
2047     if test $emacs_cv_xaw = yes; then
2048       AC_MSG_RESULT([yes; using Lucid toolkit])
2049       USE_X_TOOLKIT=LUCID
2050       LUCID_LIBW=-lXaw
2051     elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2052       AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2053     else
2054       AC_MSG_RESULT([no; do not use toolkit by default])
2055       USE_X_TOOLKIT=none
2056     fi
2057   fi
2058 fi
2059
2060 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2061
2062 LIBXTR6=
2063 if test "${USE_X_TOOLKIT}" != "none"; then
2064   AC_MSG_CHECKING(X11 toolkit version)
2065   AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2066   [AC_TRY_LINK([#include <X11/Intrinsic.h>],
2067 [#if XtSpecificationRelease < 6
2068 fail;
2069 #endif
2070 ], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2071   HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2072   if test $emacs_cv_x11_toolkit_version_6 = yes; then
2073     AC_MSG_RESULT(6 or newer)
2074     AC_DEFINE(HAVE_X11XTR6, 1,
2075               [Define to 1 if you have the X11R6 or newer version of Xt.])
2076     LIBXTR6="-lSM -lICE"
2077     case "$opsys" in
2078       ## Use libw.a along with X11R6 Xt.
2079       unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2080     esac
2081   else
2082     AC_MSG_RESULT(before 6)
2083   fi
2084
2085 dnl If using toolkit, check whether libXmu.a exists.
2086 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2087   OLDLIBS="$LIBS"
2088   if test x$HAVE_X11XTR6 = xyes; then
2089     LIBS="-lXt -lSM -lICE $LIBS"
2090   else
2091     LIBS="-lXt $LIBS"
2092   fi
2093   AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2094   test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2095 fi
2096 AC_SUBST(LIBXTR6)
2097
2098 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2099 dnl Why not just test for libxmu in the normal way?
2100 LIBXMU=-lXmu
2101 case "$machine" in
2102   ## These machines don't supply Xmu.
2103   hpux* | aix4-2 )
2104     test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2105     ;;
2106 esac
2107 AC_SUBST(LIBXMU)
2108
2109 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2110 if test "${HAVE_X11}" = "yes"; then
2111   if test "${USE_X_TOOLKIT}" != "none"; then
2112     AC_CHECK_LIB(Xext, XShapeQueryExtension)
2113   fi
2114 fi
2115
2116 LIBXP=
2117 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2118   AC_CACHE_CHECK(for Motif version 2.1, emacs_cv_motif_version_2_1,
2119   [AC_TRY_COMPILE([#include <Xm/Xm.h>],
2120     [#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2121 int x = 5;
2122 #else
2123 Motif version prior to 2.1.
2124 #endif],
2125     emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2126   if test $emacs_cv_motif_version_2_1 = yes; then
2127     AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2128   else
2129     AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2130     # We put this in CFLAGS temporarily to precede other -I options
2131     # that might be in CFLAGS temporarily.
2132     # We put this in CPPFLAGS where it precedes the other -I options.
2133     OLD_CPPFLAGS=$CPPFLAGS
2134     OLD_CFLAGS=$CFLAGS
2135     CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2136     CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2137     [AC_TRY_COMPILE([#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>],
2138       [int x = 5;],
2139       emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2140     if test $emacs_cv_lesstif = yes; then
2141       # Make sure this -I option remains in CPPFLAGS after it is set
2142       # back to REAL_CPPFLAGS.
2143       # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2144       # have those other -I options anyway.  Ultimately, having this
2145       # directory ultimately in CPPFLAGS will be enough.
2146       REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2147       LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2148     else
2149       CFLAGS=$OLD_CFLAGS
2150       CPPFLAGS=$OLD_CPPFLAGS
2151     fi
2152   fi
2153 fi
2154
2155 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2156 dnl using Motif or Xaw3d is available, and unless
2157 dnl --with-toolkit-scroll-bars=no was specified.
2158
2159 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2160             [Define to 1 if we should use toolkit scroll bars.])dnl
2161 USE_TOOLKIT_SCROLL_BARS=no
2162 if test "${with_toolkit_scroll_bars}" != "no"; then
2163   if test "${USE_X_TOOLKIT}" != "none"; then
2164     if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2165       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2166       HAVE_XAW3D=no
2167       USE_TOOLKIT_SCROLL_BARS=yes
2168     elif test "${HAVE_XAW3D}" = "yes"; then
2169       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2170       USE_TOOLKIT_SCROLL_BARS=yes
2171     fi
2172   elif test "${HAVE_GTK}" = "yes"; then
2173     AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2174     USE_TOOLKIT_SCROLL_BARS=yes
2175   elif test "${HAVE_NS}" = "yes"; then
2176     AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2177     USE_TOOLKIT_SCROLL_BARS=yes
2178   fi
2179 fi
2180
2181 dnl See if XIM is available.
2182 AC_TRY_COMPILE([
2183           #include <X11/Xlib.h>
2184           #include <X11/Xresource.h>],
2185          [XIMProc  callback;],
2186          [HAVE_XIM=yes
2187          AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2188          HAVE_XIM=no)
2189
2190 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2191
2192 if test "${with_xim}" != "no"; then
2193   AC_DEFINE(USE_XIM, 1,
2194             [Define to 1 if we should use XIM, if it is available.])
2195 fi
2196
2197
2198 if test "${HAVE_XIM}" != "no"; then
2199   late_CFLAGS=$CFLAGS
2200   if test "$GCC" = yes; then
2201     CFLAGS="$CFLAGS --pedantic-errors"
2202   fi
2203   AC_TRY_COMPILE([
2204 #include <X11/Xlib.h>
2205 #include <X11/Xresource.h>],
2206 [Display *display;
2207 XrmDatabase db;
2208 char *res_name;
2209 char *res_class;
2210 XIMProc  callback;
2211 XPointer *client_data;
2212 #ifndef __GNUC__
2213 /* If we're not using GCC, it's probably not XFree86, and this is
2214    probably right, but we can't use something like --pedantic-errors.  */
2215 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2216                                            char*, XIMProc, XPointer*);
2217 #endif
2218 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2219    client_data);],
2220     [emacs_cv_arg6_star=yes])
2221   AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2222          [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2223 either XPointer or XPointer*.])dnl
2224   if test "$emacs_cv_arg6_star" = yes; then
2225     AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2226   else
2227     AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2228   fi
2229   CFLAGS=$late_CFLAGS
2230 fi
2231
2232 ### Start of font-backend (under any platform) section.
2233 # (nothing here yet -- this is a placeholder)
2234 ### End of font-backend (under any platform) section.
2235
2236 ### Start of font-backend (under X11) section.
2237 if test "${HAVE_X11}" = "yes"; then
2238    PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2239
2240    ## Use -lXft if available, unless `--with-xft=no'.
2241    HAVE_XFT=maybe
2242     if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2243       with_xft="no";
2244     fi
2245     if test "x${with_xft}" != "xno"; then
2246
2247       PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2248       ## Because xftfont.c uses XRenderQueryExtension, we also
2249       ## need to link to -lXrender.
2250       HAVE_XRENDER=no
2251       AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2252       if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2253         OLD_CPPFLAGS="$CPPFLAGS"
2254         OLD_CFLAGS="$CFLAGS"
2255         OLD_LIBS="$LIBS"
2256         CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2257         CFLAGS="$CFLAGS $XFT_CFLAGS"
2258         XFT_LIBS="-lXrender $XFT_LIBS"
2259         LIBS="$XFT_LIBS $LIBS"
2260         AC_CHECK_HEADER(X11/Xft/Xft.h,
2261           AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2262
2263         if test "${HAVE_XFT}" = "yes"; then
2264           AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2265             AC_SUBST(XFT_LIBS)
2266           C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2267         else
2268           CPPFLAGS="$OLD_CPPFLAGS"
2269           CFLAGS="$OLD_CFLAGS"
2270           LIBS="$OLD_LIBS"
2271         fi                        # "${HAVE_XFT}" = "yes"
2272       fi                          # "$HAVE_XFT" != no
2273     fi                            # "x${with_xft}" != "xno"
2274
2275     dnl For the "Does Emacs use" message at the end.
2276     if test "$HAVE_XFT" != "yes"; then
2277        HAVE_XFT=no
2278     fi
2279
2280
2281     HAVE_FREETYPE=no
2282     ## We used to allow building with FreeType and without Xft.
2283     ## However, the ftx font backend driver is not in good shape.
2284     if test "${HAVE_XFT}" = "yes"; then
2285       dnl As we use Xft, we anyway use freetype.
2286       dnl There's no need for additional CFLAGS and LIBS.
2287       HAVE_FREETYPE=yes
2288       FONTCONFIG_CFLAGS=
2289       FONTCONFIG_LIBS=
2290     fi
2291
2292     HAVE_LIBOTF=no
2293     if test "${HAVE_FREETYPE}" = "yes"; then
2294       AC_DEFINE(HAVE_FREETYPE, 1,
2295                 [Define to 1 if using the freetype and fontconfig libraries.])
2296       if test "${with_libotf}" != "no"; then
2297         PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2298                           HAVE_LIBOTF=no)
2299         if test "$HAVE_LIBOTF" = "yes"; then
2300           AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2301           AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2302                        HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2303                        HAVE_OTF_GET_VARIATION_GLYPHS=no)
2304           if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2305             AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2306                       [Define to 1 if libotf has OTF_get_variation_glyphs.])
2307           fi
2308         fi
2309       fi
2310     dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2311     dnl Does the new font backend require it, or can it work without it?
2312     fi
2313
2314     HAVE_M17N_FLT=no
2315     if test "${HAVE_LIBOTF}" = yes; then
2316       if test "${with_m17n_flt}" != "no"; then
2317         PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2318         if test "$HAVE_M17N_FLT" = "yes"; then
2319           AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2320         fi
2321       fi
2322     fi
2323 else
2324     HAVE_XFT=no
2325     HAVE_FREETYPE=no
2326     HAVE_LIBOTF=no
2327     HAVE_M17N_FLT=no
2328 fi
2329
2330 ### End of font-backend (under X11) section.
2331
2332 AC_SUBST(FREETYPE_CFLAGS)
2333 AC_SUBST(FREETYPE_LIBS)
2334 AC_SUBST(FONTCONFIG_CFLAGS)
2335 AC_SUBST(FONTCONFIG_LIBS)
2336 AC_SUBST(LIBOTF_CFLAGS)
2337 AC_SUBST(LIBOTF_LIBS)
2338 AC_SUBST(M17N_FLT_CFLAGS)
2339 AC_SUBST(M17N_FLT_LIBS)
2340
2341 ### Use -lXpm if available, unless `--with-xpm=no'.
2342 HAVE_XPM=no
2343 LIBXPM=
2344 if test "${HAVE_X11}" = "yes"; then
2345   if test "${with_xpm}" != "no"; then
2346     AC_CHECK_HEADER(X11/xpm.h,
2347       [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2348     if test "${HAVE_XPM}" = "yes"; then
2349       AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2350       AC_EGREP_CPP(no_return_alloc_pixels,
2351       [#include "X11/xpm.h"
2352 #ifndef XpmReturnAllocPixels
2353 no_return_alloc_pixels
2354 #endif
2355       ], HAVE_XPM=no, HAVE_XPM=yes)
2356
2357       if test "${HAVE_XPM}" = "yes"; then
2358         AC_MSG_RESULT(yes)
2359       else
2360         AC_MSG_RESULT(no)
2361       fi
2362     fi
2363   fi
2364
2365   if test "${HAVE_XPM}" = "yes"; then
2366     AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm libary (-lXpm).])
2367     LIBXPM=-lXpm
2368   fi
2369 fi
2370 AC_SUBST(LIBXPM)
2371
2372 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2373 HAVE_JPEG=no
2374 LIBJPEG=
2375 if test "${HAVE_X11}" = "yes"; then
2376   if test "${with_jpeg}" != "no"; then
2377     dnl Checking for jpeglib.h can lose because of a redefinition of
2378     dnl  HAVE_STDLIB_H.
2379     AC_CHECK_HEADER(jerror.h,
2380       [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2381   fi
2382
2383   AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2384   if test "${HAVE_JPEG}" = "yes"; then
2385     AC_DEFINE(HAVE_JPEG)
2386     AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2387         [#include <jpeglib.h>
2388          version=JPEG_LIB_VERSION
2389 ],
2390         [AC_DEFINE(HAVE_JPEG)],
2391         [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2392         HAVE_JPEG=no])
2393   fi
2394   if test "${HAVE_JPEG}" = "yes"; then
2395     LIBJPEG=-ljpeg
2396   fi
2397 fi
2398 AC_SUBST(LIBJPEG)
2399
2400 ### Use -lpng if available, unless `--with-png=no'.
2401 HAVE_PNG=no
2402 LIBPNG=
2403 if test "${HAVE_X11}" = "yes"; then
2404   if test "${with_png}" != "no"; then
2405     # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2406     # in /usr/include/libpng.
2407     AC_CHECK_HEADERS(png.h libpng/png.h)
2408     if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2409       AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2410     fi
2411   fi
2412
2413   if test "${HAVE_PNG}" = "yes"; then
2414     AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2415     LIBPNG="-lpng -lz -lm"
2416   fi
2417 fi
2418 AC_SUBST(LIBPNG)
2419
2420 ### Use -ltiff if available, unless `--with-tiff=no'.
2421 HAVE_TIFF=no
2422 LIBTIFF=
2423 if test "${HAVE_X11}" = "yes"; then
2424   if test "${with_tiff}" != "no"; then
2425     AC_CHECK_HEADER(tiffio.h,
2426       [tifflibs="-lz -lm"
2427       # At least one tiff package requires the jpeg library.
2428       if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2429       AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2430   fi
2431
2432   if test "${HAVE_TIFF}" = "yes"; then
2433     AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2434     dnl FIXME -lz -lm, as per libpng?
2435     LIBTIFF=-ltiff
2436   fi
2437 fi
2438 AC_SUBST(LIBTIFF)
2439
2440 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2441 HAVE_GIF=no
2442 LIBGIF=
2443 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2444   AC_CHECK_HEADER(gif_lib.h,
2445 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2446 # Earlier versions can crash Emacs.
2447     [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2448
2449   if test "$HAVE_GIF" = yes; then
2450     LIBGIF=-lgif
2451   elif test "$HAVE_GIF" = maybe; then
2452 # If gif_lib.h but no libgif, try libungif.
2453     AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2454     test "$HAVE_GIF" = yes && LIBGIF=-lungif
2455   fi
2456
2457   if test "${HAVE_GIF}" = "yes"; then
2458     AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2459   fi
2460 fi
2461 AC_SUBST(LIBGIF)
2462
2463 dnl Check for required libraries.
2464 if test "${HAVE_X11}" = "yes"; then
2465   MISSING=""
2466   WITH_NO=""
2467   test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2468     MISSING="libXpm" && WITH_NO="--with-xpm=no"
2469   test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2470     MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2471   test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2472     MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2473   test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2474     MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2475   test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2476     MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2477
2478   if test "X${MISSING}" != X; then
2479     AC_MSG_ERROR([The following required libraries were not found:
2480     $MISSING
2481 Maybe some development libraries/packages are missing?
2482 If you don't want to link with them give
2483     $WITH_NO
2484 as options to configure])
2485   fi
2486 fi
2487
2488 ### Use -lgpm if available, unless `--with-gpm=no'.
2489 HAVE_GPM=no
2490 LIBGPM=
2491 MOUSE_SUPPORT=
2492 if test "${with_gpm}" != "no"; then
2493   AC_CHECK_HEADER(gpm.h,
2494     [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2495
2496   if test "${HAVE_GPM}" = "yes"; then
2497     AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2498     LIBGPM=-lgpm
2499     ## May be reset below.
2500     MOUSE_SUPPORT="\$(GPM_MOUSE_SUPPORT)"
2501   fi
2502 fi
2503 AC_SUBST(LIBGPM)
2504
2505 dnl Check for malloc/malloc.h on darwin
2506 AC_CHECK_HEADER(malloc/malloc.h, [AC_DEFINE(HAVE_MALLOC_MALLOC_H, 1, [Define to 1 if you have the <malloc/malloc.h> header file.])])
2507
2508 C_SWITCH_X_SYSTEM=
2509 ### Use NeXTstep API to implement GUI.
2510 if test "${HAVE_NS}" = "yes"; then
2511   AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2512   if test "${NS_IMPL_COCOA}" = "yes"; then
2513     AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2514     GNU_OBJC_CFLAGS=
2515   fi
2516   if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2517     AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2518     # See also .m.o rule in Makefile.in */
2519     # FIXME: are all these flags really needed?  Document here why.  */
2520     C_SWITCH_X_SYSTEM="-D_REENTRANT -fPIC -fno-strict-aliasing"
2521     GNU_OBJC_CFLAGS="-fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
2522   fi
2523   if test "${NS_HAVE_NSINTEGER}" = "yes"; then
2524     AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
2525   fi
2526   # We also have mouse menus.
2527   HAVE_MENUS=yes
2528   OTHER_FILES=ns-app
2529 fi
2530
2531
2532 ### Use session management (-lSM -lICE) if available
2533 HAVE_X_SM=no
2534 LIBXSM=
2535 if test "${HAVE_X11}" = "yes"; then
2536   AC_CHECK_HEADER(X11/SM/SMlib.h,
2537     [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2538
2539   if test "${HAVE_X_SM}" = "yes"; then
2540     AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2541     LIBXSM="-lSM -lICE"
2542     case "$LIBS" in
2543       *-lSM*) ;;
2544       *)      LIBS="$LIBXSM $LIBS" ;;
2545     esac
2546   fi
2547 fi
2548 AC_SUBST(LIBXSM)
2549
2550 ### Use libxml (-lxml2) if available
2551 if test "${with_xml2}" != "no"; then
2552   ### I'm not sure what the version number should be, so I just guessed.
2553   PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.2.0, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2554   if test "${HAVE_LIBXML2}" = "yes"; then
2555     LIBS="$LIBXML2_LIBS $LIBS"
2556     AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2557     if test "${HAVE_LIBXML2}" = "yes"; then
2558       AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2559     else
2560       LIBXML2_LIBS=""
2561       LIBXML2_CFLAGS=""
2562     fi
2563   fi
2564 fi
2565 AC_SUBST(LIBXML2_LIBS)
2566 AC_SUBST(LIBXML2_CFLAGS)
2567
2568 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2569 AC_CACHE_CHECK(whether netdb declares h_errno,
2570                emacs_cv_netdb_declares_h_errno,
2571 [AC_TRY_LINK([#include <netdb.h>],
2572   [return h_errno;],
2573   emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2574 if test $emacs_cv_netdb_declares_h_errno = yes; then
2575   AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2576 fi
2577
2578 AC_FUNC_ALLOCA
2579
2580 dnl src/alloca.c has been removed.  Could also check if $ALLOCA is set?
2581 dnl FIXME is there an autoconf test that does the right thing, without
2582 dnl needing to call A_M_E afterwards?
2583 if test x"$ac_cv_func_alloca_works" != xyes; then
2584    AC_MSG_ERROR( [a system implementation of alloca is required] )
2585 fi
2586
2587 # fmod, logb, and frexp are found in -lm on most systems.
2588 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
2589 AC_CHECK_LIB(m, sqrt)
2590
2591 # Check for mail-locking functions in a "mail" library.  Probably this should
2592 # have the same check as for liblockfile below.
2593 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2594 if test $have_mail = yes; then
2595   LIBS_MAIL=-lmail
2596   LIBS="$LIBS_MAIL $LIBS"
2597   AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2598 else
2599   LIBS_MAIL=
2600 fi
2601 dnl Debian, at least:
2602 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2603 if test $have_lockfile = yes; then
2604    LIBS_MAIL=-llockfile
2605    LIBS="$LIBS_MAIL $LIBS"
2606    AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2607 else
2608 # If we have the shared liblockfile, assume we must use it for mail
2609 # locking (e.g. Debian).  If we couldn't link against liblockfile
2610 # (no liblockfile.a installed), ensure that we don't need to.
2611   dnl This works for files generally, not just executables.
2612   dnl Should we look elsewhere for it?  Maybe examine /etc/ld.so.conf?
2613   AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2614                 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2615   if test $ac_cv_prog_liblockfile = yes; then
2616     AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2617 This probably means that movemail could lose mail.
2618 There may be a `development' package to install containing liblockfile.])
2619   fi
2620 fi
2621 AC_CHECK_FUNCS(touchlock)
2622 AC_CHECK_HEADERS(maillock.h)
2623 AC_SUBST(LIBS_MAIL)
2624
2625 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2626 ## interlock access to the mail spool.  The alternative is a lock file named
2627 ## /usr/spool/mail/$USER.lock.
2628 mail_lock=no
2629 case "$opsys" in
2630   aix4-2) mail_lock="lockf" ;;
2631
2632   gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2633
2634   ## On GNU/Linux systems, both methods are used by various mail programs.
2635   ## I assume most people are using newer mailers that have heard of flock.
2636   ## Change this if you need to.
2637   ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2638   ## configure gets the right answers, and that means *NOT* using flock.
2639   ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2640   ## for details.'' and then uses `#ifdef DEBIAN'.  Unfortunately the
2641   ## Debian maintainer hasn't provided a clean fix for Emacs.
2642   ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2643   ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2644   ## correct logic.  -- fx
2645   ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2646   ## liblockfile is a Free Software replacement for libmail, used on
2647   ## Debian systems and elsewhere. -rfr.
2648   gnu-*)
2649     mail_lock="flock"
2650     if test $have_mail = yes || test $have_lockfile = yes; then
2651       test $ac_cv_header_maillock_h = yes && mail_lock=no
2652     fi
2653     ;;
2654 esac
2655
2656 BLESSMAIL_TARGET=
2657 case "$mail_lock" in
2658   flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2659
2660   lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2661
2662   *) BLESSMAIL_TARGET="need-blessmail" ;;
2663 esac
2664 AC_SUBST(BLESSMAIL_TARGET)
2665
2666
2667 AC_CHECK_FUNCS(gethostname getdomainname dup2 \
2668 rename closedir mkdir rmdir sysinfo getrusage get_current_dir_name \
2669 random lrand48 logb frexp fmod rint cbrt ftime setsid \
2670 strerror fpathconf select mktime euidaccess getpagesize tzset setlocale \
2671 utimes getrlimit setrlimit setpgid getcwd getwd shutdown getaddrinfo \
2672 __fpending mblen mbrlen mbsinit strsignal setitimer ualarm strchr strrchr \
2673 sendto recvfrom getsockopt setsockopt getsockname getpeername \
2674 gai_strerror mkstemp getline getdelim mremap memmove fsync sync \
2675 memset memcmp difftime memcpy mempcpy mblen mbrlen posix_memalign \
2676 cfmakeraw cfsetspeed isnan copysign __executable_start)
2677
2678 AC_CHECK_HEADERS(sys/un.h)
2679
2680 AC_FUNC_MKTIME
2681 if test "$ac_cv_func_working_mktime" = no; then
2682   AC_DEFINE(BROKEN_MKTIME, 1, [Define to 1 if the mktime function is broken.])
2683 fi
2684
2685 AC_FUNC_GETLOADAVG
2686
2687 AC_FUNC_FSEEKO
2688
2689 # Configure getopt.
2690 m4_include([m4/getopt.m4])
2691 gl_GETOPT_IFELSE([
2692   gl_GETOPT_SUBSTITUTE_HEADER
2693   gl_PREREQ_GETOPT
2694   GETOPTOBJS='getopt.o getopt1.o'
2695 ])
2696 AC_SUBST(GETOPTOBJS)
2697
2698 AC_FUNC_GETPGRP
2699
2700 AC_FUNC_STRFTIME
2701
2702 # UNIX98 PTYs.
2703 AC_CHECK_FUNCS(grantpt)
2704
2705 # PTY-related GNU extensions.
2706 AC_CHECK_FUNCS(getpt)
2707
2708 # Check this now, so that we will NOT find the above functions in ncurses.
2709 # That is because we have not set up to link ncurses in lib-src.
2710 # It's better to believe a function is not available
2711 # than to expect to find it in ncurses.
2712 # Also we need tputs and friends to be able to build at all.
2713 have_tputs_et_al=true
2714 AC_SEARCH_LIBS(tputs, [ncurses terminfo termcap], , have_tputs_et_al=false)
2715 if test "$have_tputs_et_al" != true; then
2716   AC_MSG_ERROR([I couldn't find termcap functions (tputs and friends).
2717 Maybe some development libraries/packages are missing?  Try installing
2718 libncurses-dev(el), libterminfo-dev(el) or similar.])
2719 fi
2720 # Must define this when any termcap library is found.
2721 AC_DEFINE(HAVE_LIBNCURSES, 1,
2722           [Define to 1 if you have the `ncurses' library (-lncurses).])
2723 ## FIXME This was the cpp logic, but I am not sure it is right.
2724 ## The above test has not necessarily found libncurses.
2725 HAVE_LIBNCURSES=yes
2726
2727 ## Use terminfo instead of termcap?
2728 ## Note only system files NOT using terminfo are:
2729 ## freebsd < 40000, ms-w32, msdos, netbsd < 599002500, and
2730 ## darwin|gnu without ncurses.
2731 TERMINFO=no
2732 LIBS_TERMCAP=
2733 case "$opsys" in
2734   ## cygwin: Fewer environment variables to go wrong, more terminal types.
2735   ## hpux10-20: Use the system provided termcap(3) library.
2736   ## openbsd: David Mazieres <dm@reeducation-labor.lcs.mit.edu> says this
2737   ##  is necessary.  Otherwise Emacs dumps core when run -nw.
2738   aix4-2|cygwin|hpux*|irix6-5|openbsd|sol2*|unixware) TERMINFO=yes ;;
2739
2740   ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2741   ##  The ncurses library has been moved out of the System framework in
2742   ##  Mac OS X 10.2.  So if configure detects it, set the command-line
2743   ##  option to use it.
2744   darwin|gnu*)
2745     ## (HAVE_LIBNCURSES was not always true, but is since 2010-03-18.)
2746     if test "x$HAVE_LIBNCURSES" = "xyes"; then
2747       TERMINFO=yes
2748       LIBS_TERMCAP="-lncurses"
2749     fi
2750     ;;
2751
2752   freebsd)
2753     AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2754     AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2755     [AC_TRY_LINK([#include <osreldate.h>],
2756 [#if __FreeBSD_version < 400000
2757 fail;
2758 #endif
2759 ], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2760
2761     AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2762
2763     if test $emacs_cv_freebsd_terminfo = yes; then
2764       TERMINFO=yes
2765       LIBS_TERMCAP="-lncurses"
2766     else
2767       LIBS_TERMCAP="-ltermcap"
2768     fi
2769     ;;
2770
2771   netbsd)
2772     if test $ac_cv_search_tputs = -lterminfo; then
2773       TERMINFO=yes
2774       LIBS_TERMCAP="-lterminfo"
2775     else
2776       LIBS_TERMCAP="-ltermcap"
2777     fi
2778     ;;
2779
2780 esac
2781
2782 case "$opsys" in
2783   ## hpux: Make sure we get select from libc rather than from libcurses
2784   ##  because libcurses on HPUX 10.10 has a broken version of select.
2785   ##  We used to use -lc -lcurses, but this may be cleaner.
2786   hpux*) LIBS_TERMCAP="-ltermcap" ;;
2787
2788   openbsd) LIBS_TERMCAP="-lncurses" ;;
2789
2790   ## Must use system termcap, if we use any termcap.  It does special things.
2791   sol2*) test "$TERMINFO" != yes && LIBS_TERMCAP="-ltermcap" ;;
2792 esac
2793
2794 TERMCAP_OBJ=tparam.o
2795 if test $TERMINFO = yes; then
2796   AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
2797
2798   ## Default used to be -ltermcap.  Add a case above if need something else.
2799   test "x$LIBS_TERMCAP" = "x" && LIBS_TERMCAP="-lcurses"
2800
2801   TERMCAP_OBJ=terminfo.o
2802 fi
2803 AC_SUBST(LIBS_TERMCAP)
2804 AC_SUBST(TERMCAP_OBJ)
2805
2806
2807 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2808 resolv=no
2809 AC_TRY_LINK([#include <netinet/in.h>
2810 #include <arpa/nameser.h>
2811 #include <resolv.h>],
2812     [return res_init();],
2813     have_res_init=yes, have_res_init=no)
2814 if test "$have_res_init" = no; then
2815   OLIBS="$LIBS"
2816   LIBS="$LIBS -lresolv"
2817   AC_MSG_CHECKING(for res_init with -lresolv)
2818   AC_TRY_LINK([#include <netinet/in.h>
2819 #include <arpa/nameser.h>
2820 #include <resolv.h>],
2821     [return res_init();],
2822     have_res_init=yes, have_res_init=no)
2823   AC_MSG_RESULT($have_res_init)
2824   if test "$have_res_init" = yes ; then
2825     resolv=yes
2826   fi
2827   LIBS="$OLIBS"
2828 fi
2829
2830 if test "$have_res_init" = yes; then
2831   AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2832 fi
2833
2834 # Do we need the Hesiod library to provide the support routines?
2835 LIBHESIOD=
2836 if test "$with_hesiod" != no ; then
2837   # Don't set $LIBS here -- see comments above.  FIXME which comments?
2838   AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2839      [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2840                   [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2841   if test "$resolv" = yes ; then
2842     RESOLVLIB=-lresolv
2843   else
2844     RESOLVLIB=
2845   fi
2846   AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2847         hesiod=yes, :, $RESOLVLIB)])
2848
2849   if test x"$hesiod" = xyes; then
2850     AC_DEFINE(HAVE_LIBHESIOD, 1,
2851               [Define to 1 if you have the hesiod library (-lhesiod).])
2852     LIBHESIOD=-lhesiod
2853   fi
2854 fi
2855 AC_SUBST(LIBHESIOD)
2856
2857 # Do we need libresolv (due to res_init or Hesiod)?
2858 if test "$resolv" = yes ; then
2859   AC_DEFINE(HAVE_LIBRESOLV, 1,
2860             [Define to 1 if you have the resolv library (-lresolv).])
2861   LIBRESOLV=-lresolv
2862 else
2863   LIBRESOLV=
2864 fi
2865 AC_SUBST(LIBRESOLV)
2866
2867 # These tell us which Kerberos-related libraries to use.
2868 COM_ERRLIB=
2869 CRYPTOLIB=
2870 KRB5LIB=
2871 DESLIB=
2872 KRB4LIB=
2873
2874 if test "${with_kerberos}" != no; then
2875   AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
2876   if test $have_com_err = yes; then
2877     COM_ERRLIB=-lcom_err
2878     LIBS="$COM_ERRLIB $LIBS"
2879     AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
2880   fi
2881   AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
2882   if test $have_crypto = yes; then
2883     CRYPTOLIB=-lcrypto
2884     LIBS="$CRYPTOLIB $LIBS"
2885     AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
2886   fi
2887   AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
2888   if test $have_k5crypto = yes; then
2889     CRYPTOLIB=-lk5crypto
2890     LIBS="$CRYPTOLIB $LIBS"
2891     AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
2892   fi
2893   AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
2894   if test $have_krb5=yes; then
2895     KRB5LIB=-lkrb5
2896     LIBS="$KRB5LIB $LIBS"
2897     AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
2898   fi
2899   dnl FIXME Simplify.  Does not match 22 logic, thanks to default_off?
2900   if test "${with_kerberos5}" = no; then
2901     AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
2902     if test $have_des425 = yes; then
2903       DESLIB=-ldes425
2904       LIBS="$DESLIB $LIBS"
2905       AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
2906     else
2907       AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
2908       if test $have_des = yes; then
2909         DESLIB=-ldes
2910         LIBS="$DESLIB $LIBS"
2911         AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
2912       fi
2913     fi
2914     AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
2915     if test $have_krb4 = yes; then
2916       KRB4LIB=-lkrb4
2917       LIBS="$KRB4LIB $LIBS"
2918       AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
2919     else
2920       AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
2921       if test $have_krb = yes; then
2922         KRB4LIB=-lkrb
2923         LIBS="$KRB4LIB $LIBS"
2924         AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
2925       fi
2926     fi
2927   fi
2928
2929   if test "${with_kerberos5}" != no; then
2930     AC_CHECK_HEADERS(krb5.h,
2931       [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
2932                         [#include <krb5.h>])])
2933   else
2934     AC_CHECK_HEADERS(des.h,,
2935                      [AC_CHECK_HEADERS(kerberosIV/des.h,,
2936                                        [AC_CHECK_HEADERS(kerberos/des.h)])])
2937     AC_CHECK_HEADERS(krb.h,,
2938                      [AC_CHECK_HEADERS(kerberosIV/krb.h,,
2939                                        [AC_CHECK_HEADERS(kerberos/krb.h)])])
2940   fi
2941   AC_CHECK_HEADERS(com_err.h)
2942 fi
2943
2944 AC_SUBST(COM_ERRLIB)
2945 AC_SUBST(CRYPTOLIB)
2946 AC_SUBST(KRB5LIB)
2947 AC_SUBST(DESLIB)
2948 AC_SUBST(KRB4LIB)
2949
2950 # Solaris requires -lintl if you want strerror (which calls dgettext)
2951 # to return localized messages.
2952 AC_CHECK_LIB(intl, dgettext)
2953
2954 AC_MSG_CHECKING(whether localtime caches TZ)
2955 AC_CACHE_VAL(emacs_cv_localtime_cache,
2956 [if test x$ac_cv_func_tzset = xyes; then
2957 AC_TRY_RUN([#include <time.h>
2958 extern char **environ;
2959 unset_TZ ()
2960 {
2961   char **from, **to;
2962   for (to = from = environ; (*to = *from); from++)
2963     if (! (to[0][0] == 'T' && to[0][1] == 'Z' && to[0][2] == '='))
2964       to++;
2965 }
2966 char TZ_GMT0[] = "TZ=GMT0";
2967 char TZ_PST8[] = "TZ=PST8";
2968 main()
2969 {
2970   time_t now = time ((time_t *) 0);
2971   int hour_GMT0, hour_unset;
2972   if (putenv (TZ_GMT0) != 0)
2973     exit (1);
2974   hour_GMT0 = localtime (&now)->tm_hour;
2975   unset_TZ ();
2976   hour_unset = localtime (&now)->tm_hour;
2977   if (putenv (TZ_PST8) != 0)
2978     exit (1);
2979   if (localtime (&now)->tm_hour == hour_GMT0)
2980     exit (1);
2981   unset_TZ ();
2982   if (localtime (&now)->tm_hour != hour_unset)
2983     exit (1);
2984   exit (0);
2985 }], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
2986 [# If we have tzset, assume the worst when cross-compiling.
2987 emacs_cv_localtime_cache=yes])
2988 else
2989         # If we lack tzset, report that localtime does not cache TZ,
2990         # since we can't invalidate the cache if we don't have tzset.
2991         emacs_cv_localtime_cache=no
2992 fi])dnl
2993 AC_MSG_RESULT($emacs_cv_localtime_cache)
2994 if test $emacs_cv_localtime_cache = yes; then
2995   AC_DEFINE(LOCALTIME_CACHE, 1,
2996             [Define to 1 if localtime caches TZ.])
2997 fi
2998
2999 if test "x$HAVE_TIMEVAL" = xyes; then
3000   AC_CHECK_FUNCS(gettimeofday)
3001   if test $ac_cv_func_gettimeofday = yes; then
3002     AC_CACHE_CHECK(whether gettimeofday can accept two arguments,
3003                    emacs_cv_gettimeofday_two_arguments,
3004     [AC_TRY_COMPILE([
3005 #ifdef TIME_WITH_SYS_TIME
3006 #include <sys/time.h>
3007 #include <time.h>
3008 #else
3009 #ifdef HAVE_SYS_TIME_H
3010 #include <sys/time.h>
3011 #else
3012 #include <time.h>
3013 #endif
3014 #endif],
3015       [struct timeval time;
3016        gettimeofday (&time, 0);],
3017       emacs_cv_gettimeofday_two_arguments=yes,
3018       emacs_cv_gettimeofday_two_arguments=no)])
3019     if test $emacs_cv_gettimeofday_two_arguments = no; then
3020       AC_DEFINE(GETTIMEOFDAY_ONE_ARGUMENT, 1,
3021                 [Define to 1 if gettimeofday accepts only one argument.])
3022     fi
3023   fi
3024 fi
3025
3026 ok_so_far=yes
3027 AC_CHECK_FUNC(socket, , ok_so_far=no)
3028 if test $ok_so_far = yes; then
3029   AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3030 fi
3031 if test $ok_so_far = yes; then
3032   AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3033 fi
3034 if test $ok_so_far = yes; then
3035 dnl Fixme: Not used.  Should this be HAVE_SOCKETS?
3036   AC_DEFINE(HAVE_INET_SOCKETS, 1,
3037             [Define to 1 if you have inet sockets.])
3038 fi
3039
3040 AC_CHECK_HEADERS(sys/ioctl.h)
3041
3042 if test -f /usr/lpp/X11/bin/smt.exp; then
3043   AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3044             [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3045 fi
3046
3047 AC_MSG_CHECKING(whether system supports dynamic ptys)
3048 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3049   AC_MSG_RESULT(yes)
3050   AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3051 else
3052   AC_MSG_RESULT(no)
3053 fi
3054
3055 AC_FUNC_FORK
3056
3057 dnl Adapted from Haible's version.
3058 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3059   [AC_TRY_LINK([#include <langinfo.h>],
3060     [char* cs = nl_langinfo(CODESET);],
3061     emacs_cv_langinfo_codeset=yes,
3062     emacs_cv_langinfo_codeset=no)
3063   ])
3064 if test $emacs_cv_langinfo_codeset = yes; then
3065   AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3066     [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3067 fi
3068
3069 AC_CHECK_TYPES(size_t)
3070
3071 AC_TYPE_MBSTATE_T
3072
3073 dnl Restrict could probably be used effectively other than in regex.c.
3074 AC_CACHE_CHECK([for C restrict keyword], emacs_cv_c_restrict,
3075   [AC_TRY_COMPILE([void fred (int *restrict x);], [],
3076                   emacs_cv_c_restrict=yes,
3077                   [AC_TRY_COMPILE([void fred (int *__restrict x);], [],
3078                                   emacs_cv_c_restrict=__restrict,
3079                                   emacs_cv_c_restrict=no)])])
3080 case "$emacs_cv_c_restrict" in
3081   yes) emacs_restrict=restrict;;
3082   no) emacs_restrict="";;
3083   *) emacs_restrict="$emacs_cv_c_restrict";;
3084 esac
3085 if test "$emacs_restrict" != __restrict; then
3086   AC_DEFINE_UNQUOTED(__restrict, $emacs_restrict,
3087     [Define to compiler's equivalent of C99 restrict keyword.
3088      Don't define if equivalent is `__restrict'.])
3089 fi
3090
3091 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3092   [AC_TRY_COMPILE([void fred (int x[__restrict]);], [],
3093                   emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3094 if test "$emacs_cv_c_restrict_arr" = yes; then
3095   AC_DEFINE(__restrict_arr, __restrict,
3096     [Define to compiler's equivalent of C99 restrict keyword in array
3097      declarations.  Define as empty for no equivalent.])
3098 fi
3099
3100 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3101 dnl how the tty code is related to POSIX and/or other versions of termios.
3102 dnl The following looks like a useful start.
3103 dnl
3104 dnl AC_SYS_POSIX_TERMIOS
3105 dnl if test $ac_cv_sys_posix_termios = yes; then
3106 dnl    AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3107 dnl                                and macros for terminal control.])
3108 dnl    AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3109 dnl fi
3110
3111 dnl Fixme: Use AC_FUNC_MEMCMP since memcmp is used.  (Needs libobj replacement.)
3112
3113 # Set up the CFLAGS for real compilation, so we can substitute it.
3114 CFLAGS="$REAL_CFLAGS"
3115 CPPFLAGS="$REAL_CPPFLAGS"
3116
3117 ## Hack to detect a buggy GCC version.
3118 if test "x$GCC" = xyes \
3119    && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3120    && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3121    && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3122    AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3123 fi
3124
3125 #### Find out which version of Emacs this is.
3126 [version=`grep 'const char emacs_version' ${srcdir}/src/emacs.c \
3127          | sed -e 's/^[^"]*"\([^"]*\)".*$/\1/'`]
3128 if test x"${version}" = x; then
3129   AC_MSG_ERROR([can't find current emacs version in `${srcdir}/src/emacs.c'.])
3130 fi
3131 if test x"${version}" != x"$PACKAGE_VERSION"; then
3132   AC_MSG_WARN([version mismatch between `${srcdir}/configure.in' and `${srcdir}/src/emacs.c'.])
3133 fi
3134
3135 ### Specify what sort of things we'll be editing into Makefile and config.h.
3136 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3137 AC_SUBST(version)
3138 AC_SUBST(configuration)
3139 ## Unused?
3140 AC_SUBST(canonical)
3141 AC_SUBST(srcdir)
3142 AC_SUBST(prefix)
3143 AC_SUBST(exec_prefix)
3144 AC_SUBST(bindir)
3145 AC_SUBST(datadir)
3146 AC_SUBST(sharedstatedir)
3147 AC_SUBST(libexecdir)
3148 AC_SUBST(mandir)
3149 AC_SUBST(infodir)
3150 AC_SUBST(lispdir)
3151 AC_SUBST(locallisppath)
3152 AC_SUBST(lisppath)
3153 AC_SUBST(x_default_search_path)
3154 AC_SUBST(etcdir)
3155 AC_SUBST(archlibdir)
3156 AC_SUBST(docdir)
3157 AC_SUBST(bitmapdir)
3158 AC_SUBST(gamedir)
3159 AC_SUBST(gameuser)
3160 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
3161 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
3162 ## end of LIBX_BASE, but nothing ever set it.
3163 AC_SUBST(LD_SWITCH_X_SITE)
3164 AC_SUBST(C_SWITCH_X_SITE)
3165 AC_SUBST(C_SWITCH_X_SYSTEM)
3166 AC_SUBST(CFLAGS)
3167 ## Used in lwlib/Makefile.in.
3168 AC_SUBST(X_TOOLKIT_TYPE)
3169 AC_SUBST(machfile)
3170 AC_SUBST(opsysfile)
3171 AC_SUBST(GETLOADAVG_LIBS)
3172 AC_SUBST(ns_appdir)
3173 AC_SUBST(ns_appbindir)
3174 AC_SUBST(ns_appresdir)
3175 AC_SUBST(ns_appsrc)
3176 AC_SUBST(GNU_OBJC_CFLAGS)
3177 AC_SUBST(OTHER_FILES)
3178
3179 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION,  "${canonical}",
3180                    [Define to the canonical Emacs configuration name.])
3181 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
3182                    [Define to the options passed to configure.])
3183 AC_DEFINE_UNQUOTED(config_machfile,  "${machfile}",
3184                    [Define to the used machine dependent file.])
3185 AC_DEFINE_UNQUOTED(config_opsysfile, "${opsysfile}",
3186                    [Define to the used os dependent file.])
3187
3188 XMENU_OBJ=
3189 XOBJ=
3190 FONT_OBJ=
3191 if test "${HAVE_X_WINDOWS}" = "yes" ; then
3192   AC_DEFINE(HAVE_X_WINDOWS, 1,
3193             [Define to 1 if you want to use the X window system.])
3194   XMENU_OBJ=xmenu.o
3195   XOBJ="xterm.o xfns.o xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o xsettings.o xgselect.o"
3196   FONT_OBJ=xfont.o
3197   if test "$HAVE_XFT" = "yes"; then
3198     FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
3199   elif test "$HAVE_FREETYPE" = "yes"; then
3200     FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
3201   fi
3202   AC_SUBST(FONT_OBJ)
3203 fi
3204 AC_SUBST(XMENU_OBJ)
3205 AC_SUBST(XOBJ)
3206 AC_SUBST(FONT_OBJ)
3207
3208 WIDGET_OBJ=
3209 MOTIF_LIBW=
3210 if test "${USE_X_TOOLKIT}" != "none" ; then
3211   WIDGET_OBJ=widget.o
3212   AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
3213   if test "${USE_X_TOOLKIT}" = "LUCID"; then
3214     AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
3215   elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
3216     AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
3217     MOTIF_LIBW=-lXm
3218     case "$opsys" in
3219       gnu-linux)
3220         ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
3221         MOTIF_LIBW="$MOTIF_LIBW -lXpm"
3222         ;;
3223
3224       unixware)
3225         ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
3226         ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
3227         MOTIF_LIBW="MOTIF_LIBW -lXimp"
3228         ;;
3229
3230       aix4-2)
3231         ## olson@mcs.anl.gov says -li18n is needed by -lXm.
3232         MOTIF_LIBW="$MOTIF_LIBW -li18n"
3233         ;;
3234     esac
3235     MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
3236   fi
3237 fi
3238 AC_SUBST(WIDGET_OBJ)
3239
3240 TOOLKIT_LIBW=
3241 case "$USE_X_TOOLKIT" in
3242   MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
3243   LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
3244   none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
3245 esac
3246 AC_SUBST(TOOLKIT_LIBW)
3247
3248 if test "$USE_X_TOOLKIT" = "none"; then
3249   LIBXT_OTHER="\$(LIBXSM)"
3250   OLDXMENU_TARGET="really-oldXMenu"
3251 else
3252   LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
3253   OLDXMENU_TARGET="really-lwlib"
3254 fi
3255 AC_SUBST(LIBXT_OTHER)
3256
3257 ## The X Menu stuff is present in the X10 distribution, but missing
3258 ## from X11.  If we have X10, just use the installed library;
3259 ## otherwise, use our own copy.
3260 if test "${HAVE_X11}" = "yes" ; then
3261   AC_DEFINE(HAVE_X11, 1,
3262             [Define to 1 if you want to use version 11 of X windows.
3263              Otherwise, Emacs expects to use version 10.])
3264
3265   if test "$USE_X_TOOLKIT" = "none"; then
3266     OLDXMENU="\${oldXMenudir}libXMenu11.a"
3267   else
3268     OLDXMENU="\${lwlibdir}liblw.a"
3269   fi
3270   LIBXMENU="\$(OLDXMENU)"
3271   LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
3272   OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
3273 else
3274   ## For a syntactically valid Makefile; not actually used for anything.
3275   ## See comments in src/Makefile.in.
3276   OLDXMENU=nothing
3277   ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
3278   if test "${HAVE_X_WINDOWS}" = "yes"; then
3279     LIBXMENU="-lXMenu"
3280   else
3281     LIBXMENU=
3282   fi
3283   LIBX_OTHER=
3284   OLDXMENU_DEPS=
3285 fi
3286
3287 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
3288   OLDXMENU_TARGET=
3289   OLDXMENU=nothing
3290   LIBXMENU=
3291   OLDXMENU_DEPS=
3292 fi
3293
3294 AC_SUBST(OLDXMENU_TARGET)
3295 AC_SUBST(OLDXMENU)
3296 AC_SUBST(LIBXMENU)
3297 AC_SUBST(LIBX_OTHER)
3298 AC_SUBST(OLDXMENU_DEPS)
3299
3300 if test "${HAVE_MENUS}" = "yes" ; then
3301   AC_DEFINE(HAVE_MENUS, 1,
3302             [Define to 1 if you have mouse menus.
3303              (This is automatic if you use X, but the option to specify it remains.)
3304              It is also defined with other window systems that support xmenu.c.])
3305 fi
3306
3307 if test "${GNU_MALLOC}" = "yes" ; then
3308   AC_DEFINE(GNU_MALLOC, 1,
3309             [Define to 1 if you want to use the GNU memory allocator.])
3310 fi
3311
3312 RALLOC_OBJ=
3313 if test "${REL_ALLOC}" = "yes" ; then
3314   AC_DEFINE(REL_ALLOC, 1,
3315             [Define REL_ALLOC if you want to use the relocating allocator for
3316              buffer space.])
3317
3318   test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
3319 fi
3320 AC_SUBST(RALLOC_OBJ)
3321
3322 if test "$opsys" = "cygwin"; then
3323   CYGWIN_OBJ="sheap.o"
3324   ## Cygwin differs because of its unexec().
3325   PRE_ALLOC_OBJ=
3326   POST_ALLOC_OBJ=lastfile.o
3327 else
3328   CYGWIN_OBJ=
3329   PRE_ALLOC_OBJ=lastfile.o
3330   POST_ALLOC_OBJ=
3331 fi
3332 AC_SUBST(CYGWIN_OBJ)
3333 AC_SUBST(PRE_ALLOC_OBJ)
3334 AC_SUBST(POST_ALLOC_OBJ)
3335
3336
3337 case "$opsys" in
3338   aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
3339
3340   darwin)
3341    ## The -headerpad option tells ld (see man page) to leave room at the
3342    ## end of the header for adding load commands.  Needed for dumping.
3343    ## 0x690 is the total size of 30 segment load commands (at 56
3344    ## each); under Cocoa 31 commands are required.
3345    if test "$HAVE_NS" = "yes"; then
3346      libs_nsgui="-framework AppKit"
3347      headerpad_extra=6C8
3348    else
3349      libs_nsgui=
3350      headerpad_extra=690
3351    fi
3352    LD_SWITCH_SYSTEM_TEMACS="-prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
3353
3354    ## This is here because src/Makefile.in did some extra fiddling around
3355    ## with LD_SWITCH_SYSTEM.  The cpp logic was:
3356    ##   #ifndef LD_SWITCH_SYSTEM
3357    ##   #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
3358    ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
3359    ## not using gcc, darwin system not on an alpha (ie darwin, since
3360    ## darwin + alpha does not occur).
3361    ## Because this was done in src/Makefile.in, the resulting part of
3362    ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
3363    ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
3364    ## rather than LD_SWITCH_SYSTEM.
3365    test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
3366      LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
3367    ;;
3368
3369   ## LD_SWITCH_X_SITE_AUX is a -R option saying where to find X at run-time.
3370   ## When handled by cpp, this was in LD_SWITCH_SYSTEM.  However, at
3371   ## the point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_AUX
3372   ## had not yet been defined and was expanded to null.  Hence LD_SWITCH_SYSTEM
3373   ## had different values in configure (in ac_link) and src/Makefile.in.
3374   ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
3375   gnu-linux) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_AUX)" ;;
3376
3377   *) LD_SWITCH_SYSTEM_TEMACS= ;;
3378 esac
3379
3380 if test "$NS_IMPL_GNUSTEP" = "yes"; then
3381   LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
3382 fi
3383
3384 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
3385
3386
3387 LD_FIRSTFLAG=
3388 ORDINARY_LINK=
3389 case "$opsys" in
3390   ## gnu: GNU needs its own crt0.
3391   aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
3392
3393   ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
3394   ## library search parth, i.e. it won't search /usr/lib for libc and
3395   ## friends.  Using -nostartfiles instead avoids this problem, and
3396   ## will also work on earlier NetBSD releases.
3397   netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
3398
3399   ## macpcc: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
3400   ##   MkLinux/LinuxPPC needs this.
3401   ## ibms390x only supports opsys = gnu-linux so it can be added here.
3402   gnu-*)
3403     case "$machine" in
3404       macppc|ibms390x) LD_FIRSTFLAG="-nostdlib" ;;
3405     esac
3406     ;;
3407 esac
3408
3409
3410 if test "x$ORDINARY_LINK" = "xyes"; then
3411
3412   LD_FIRSTFLAG=""
3413   AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
3414
3415 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
3416 ## freebsd, gnu-* not on macppc|ibms390x.
3417 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
3418
3419   ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
3420   ## places that are difficult to figure out at make time.  Fortunately,
3421   ## these same versions allow you to pass arbitrary flags on to the
3422   ## linker, so there is no reason not to use it as a linker.
3423   ##
3424   ## Well, it is not quite perfect.  The "-nostdlib" keeps GCC from
3425   ## searching for libraries in its internal directories, so we have to
3426   ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
3427   LD_FIRSTFLAG="-nostdlib"
3428 fi
3429
3430 ## FIXME? What setting of EDIT_LDFLAGS should this have?
3431 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
3432
3433 AC_SUBST(LD_FIRSTFLAG)
3434
3435
3436 ## FIXME? The logic here is not precisely the same as that above.
3437 ## There is no check here for a pre-defined LD_FIRSTFLAG.
3438 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
3439 LIB_GCC=
3440 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
3441
3442   case "$opsys" in
3443     freebsd|netbsd|openbsd) LIB_GCC= ;;
3444
3445     gnu-*)
3446       ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
3447       ## build on ARM EABI under GNU/Linux.  (Bug#5518)
3448       ## Note that m/arm.h never bothered to undefine LIB_GCC first.
3449       if test "$machine" = "arm"; then
3450         LIB_GCC="-lgcc_s"
3451       else
3452         ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
3453         ## immediately undefine it again and redefine it to empty.
3454         ## Was the C_SWITCH_X_SITE part really necessary?
3455 ##      LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
3456         LIB_GCC=
3457       fi
3458       ;;
3459
3460     ## Ask GCC where to find libgcc.a.
3461     *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
3462   esac
3463 fi                              dnl if $GCC
3464 AC_SUBST(LIB_GCC)
3465
3466
3467 TOOLTIP_SUPPORT=
3468 WINDOW_SUPPORT=
3469 ## If we're using X11/GNUstep, define some consequences.
3470 if test "$HAVE_X_WINDOWS" = "yes" || test "$HAVE_NS" = "yes"; then
3471   AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
3472   AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
3473   MOUSE_SUPPORT="\$(REAL_MOUSE_SUPPORT)"
3474   TOOLTIP_SUPPORT="\${lispsource}mouse.elc"
3475
3476   WINDOW_SUPPORT="\$(BASE_WINDOW_SUPPORT)"
3477   test "$HAVE_X_WINDOWS" = "yes" && \
3478     WINDOW_SUPPORT="$WINDOW_SUPPORT \$(X_WINDOW_SUPPORT)"
3479
3480 fi
3481 AC_SUBST(MOUSE_SUPPORT)
3482 AC_SUBST(TOOLTIP_SUPPORT)
3483 AC_SUBST(WINDOW_SUPPORT)
3484
3485
3486 AH_TOP([/* GNU Emacs site configuration template file.
3487    Copyright (C) 1988, 1993, 1994, 1999, 2000, 2001, 2002, 2004, 2005,
3488      2006, 2007, 2008, 2009, 2010  Free Software Foundation, Inc.
3489
3490 This file is part of GNU Emacs.
3491
3492 GNU Emacs is free software: you can redistribute it and/or modify
3493 it under the terms of the GNU General Public License as published by
3494 the Free Software Foundation, either version 3 of the License, or
3495 (at your option) any later version.
3496
3497 GNU Emacs is distributed in the hope that it will be useful,
3498 but WITHOUT ANY WARRANTY; without even the implied warranty of
3499 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
3500 GNU General Public License for more details.
3501
3502 You should have received a copy of the GNU General Public License
3503 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
3504
3505
3506 /* No code in Emacs #includes config.h twice, but some bits of code
3507    intended to work with other packages as well (like gmalloc.c)
3508    think they can include it as many times as they like.  */
3509 #ifndef EMACS_CONFIG_H
3510 #define EMACS_CONFIG_H
3511 ])dnl
3512
3513 AH_BOTTOM([
3514 /* Define AMPERSAND_FULL_NAME if you use the convention
3515    that & in the full name stands for the login id.  */
3516 /* Turned on June 1996 supposing nobody will mind it.  */
3517 #define AMPERSAND_FULL_NAME
3518
3519 /* If using GNU, then support inline function declarations.  */
3520 /* Don't try to switch on inline handling as detected by AC_C_INLINE
3521    generally, because even if non-gcc compilers accept `inline', they
3522    may reject `extern inline'.  */
3523 #if defined (__GNUC__) && defined (OPTIMIZE)
3524 #define INLINE __inline__
3525 #else
3526 #define INLINE
3527 #endif
3528
3529 /* `subprocesses' should be defined if you want to
3530    have code for asynchronous subprocesses
3531    (as used in M-x compile and M-x shell).
3532    Only MSDOS does not support this (it overrides
3533    this in its config_opsysfile below).  */
3534
3535 #define subprocesses
3536
3537 /* Include the os and machine dependent files.  */
3538 #include config_opsysfile
3539 #include config_machfile
3540
3541 /* Set up some defines, C and LD flags for NeXTstep interface on GNUstep.
3542   (There is probably a better place to do this, but right now the Cocoa
3543    side does this in s/darwin.h and we cannot
3544    parallel this exactly since GNUstep is multi-OS.  */
3545 #ifdef HAVE_NS
3546 # ifdef NS_IMPL_GNUSTEP
3547 /* GNUstep needs a bit more pure memory.  Of the existing knobs,
3548 SYSTEM_PURESIZE_EXTRA seems like the least likely to cause problems.  */
3549 #  define SYSTEM_PURESIZE_EXTRA 30000
3550 # endif /* NS_IMPL_GNUSTEP */
3551 #endif /* HAVE_NS */
3552
3553 /* SIGTYPE is the macro we actually use.  */
3554 #ifndef SIGTYPE
3555 #define SIGTYPE RETSIGTYPE
3556 #endif
3557
3558 #ifdef emacs /* Don't do this for lib-src.  */
3559 /* Tell regex.c to use a type compatible with Emacs.  */
3560 #define RE_TRANSLATE_TYPE Lisp_Object
3561 #define RE_TRANSLATE(TBL, C) CHAR_TABLE_TRANSLATE (TBL, C)
3562 #ifdef make_number
3563 /* If make_number is a macro, use it.  */
3564 #define RE_TRANSLATE_P(TBL) (!EQ (TBL, make_number (0)))
3565 #else
3566 /* If make_number is a function, avoid it.  */
3567 #define RE_TRANSLATE_P(TBL) (!(INTEGERP (TBL) && XINT (TBL) == 0))
3568 #endif
3569 #endif
3570
3571 /* Avoid link-time collision with system mktime if we will use our own.  */
3572 #if ! HAVE_MKTIME || BROKEN_MKTIME
3573 #define mktime emacs_mktime
3574 #endif
3575
3576 #define my_strftime nstrftime   /* for strftime.c */
3577
3578 /* These default definitions are good for almost all machines.
3579    The exceptions override them in m/MACHINE.h.  */
3580
3581 #ifndef BITS_PER_CHAR
3582 #define BITS_PER_CHAR 8
3583 #endif
3584
3585 #ifndef BITS_PER_SHORT
3586 #define BITS_PER_SHORT 16
3587 #endif
3588
3589 /* Note that lisp.h uses this in a preprocessor conditional, so it
3590    would not work to use sizeof.  That being so, we do all of them
3591    without sizeof, for uniformity's sake.  */
3592 #ifndef BITS_PER_INT
3593 #define BITS_PER_INT 32
3594 #endif
3595
3596 #ifndef BITS_PER_LONG
3597 #ifdef _LP64
3598 #define BITS_PER_LONG 64
3599 #else
3600 #define BITS_PER_LONG 32
3601 #endif
3602 #endif
3603
3604 /* Define if the compiler supports function prototypes.  It may do so but
3605    not define __STDC__ (e.g. DEC C by default) or may define it as zero.  */
3606 #undef PROTOTYPES
3607
3608 #ifdef HAVE_STRING_H
3609 #include <string.h>
3610 #endif
3611
3612 #ifdef HAVE_STDLIB_H
3613 #include <stdlib.h>
3614 #endif
3615
3616 #ifdef HAVE_ALLOCA_H
3617 # include <alloca.h>
3618 #elif defined __GNUC__
3619 # define alloca __builtin_alloca
3620 #elif defined _AIX
3621 # define alloca __alloca
3622 #else
3623 # include <stddef.h>
3624 # ifdef  __cplusplus
3625 extern "C"
3626 # endif
3627 void *alloca (size_t);
3628 #endif
3629
3630 #ifndef HAVE_SIZE_T
3631 typedef unsigned size_t;
3632 #endif
3633
3634 #ifndef HAVE_STRCHR
3635 #define strchr(a, b) index (a, b)
3636 #endif
3637
3638 #ifndef HAVE_STRRCHR
3639 #define strrchr(a, b) rindex (a, b)
3640 #endif
3641
3642 #if defined __GNUC__ && (__GNUC__ > 2 \
3643                          || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5))
3644 #define NO_RETURN       __attribute__ ((__noreturn__))
3645 #else
3646 #define NO_RETURN       /* nothing */
3647 #endif
3648
3649 /* These won't be used automatically yet.  We also need to know, at least,
3650    that the stack is continuous.  */
3651 #ifdef __GNUC__
3652 #  ifndef GC_SETJMP_WORKS
3653   /* GC_SETJMP_WORKS is nearly always appropriate for GCC.  */
3654 #    define GC_SETJMP_WORKS 1
3655 #  endif
3656 #  ifndef GC_LISP_OBJECT_ALIGNMENT
3657 #    define GC_LISP_OBJECT_ALIGNMENT (__alignof__ (Lisp_Object))
3658 #  endif
3659 #endif
3660
3661 #endif /* EMACS_CONFIG_H */
3662
3663 /*
3664 Local Variables:
3665 mode: c
3666 End:
3667 */
3668 ])dnl
3669
3670 #### Report on what we decided to do.
3671 #### Report GTK as a toolkit, even if it doesn't use Xt.
3672 #### It makes printing result more understandable as using GTK sets
3673 #### toolkit_scroll_bars to yes by default.
3674 if test "${HAVE_GTK}" = "yes"; then
3675   USE_X_TOOLKIT=GTK
3676 fi
3677
3678 echo "
3679 Configured for \`${canonical}'.
3680
3681   Where should the build process find the source code?    ${srcdir}
3682   What operating system and machine description files should Emacs use?
3683         \`${opsysfile}' and \`${machfile}'
3684   What compiler should emacs be built with?               ${CC} ${CFLAGS}
3685   Should Emacs use the GNU version of malloc?             ${GNU_MALLOC}${GNU_MALLOC_reason}
3686   Should Emacs use a relocating allocator for buffers?    ${REL_ALLOC}
3687   Should Emacs use mmap(2) for buffer allocation?         $use_mmap_for_buffers
3688   What window system should Emacs use?                    ${window_system}
3689   What toolkit should Emacs use?                          ${USE_X_TOOLKIT}"
3690
3691 if test -n "${x_includes}"; then
3692 echo "  Where do we find X Windows header files?                ${x_includes}"
3693 else
3694 echo "  Where do we find X Windows header files?                Standard dirs"
3695 fi
3696 if test -n "${x_libraries}"; then
3697 echo "  Where do we find X Windows libraries?                   ${x_libraries}"
3698 else
3699 echo "  Where do we find X Windows libraries?                   Standard dirs"
3700 fi
3701
3702 echo "  Does Emacs use -lXaw3d?                                 ${HAVE_XAW3D}"
3703 echo "  Does Emacs use -lXpm?                                   ${HAVE_XPM}"
3704 echo "  Does Emacs use -ljpeg?                                  ${HAVE_JPEG}"
3705 echo "  Does Emacs use -ltiff?                                  ${HAVE_TIFF}"
3706 echo "  Does Emacs use a gif library?                           ${HAVE_GIF} $LIBGIF"
3707 echo "  Does Emacs use -lpng?                                   ${HAVE_PNG}"
3708 echo "  Does Emacs use -lrsvg-2?                                ${HAVE_RSVG}"
3709 echo "  Does Emacs use imagemagick?                             ${HAVE_IMAGEMAGICK}"
3710
3711 echo "  Does Emacs use -lgpm?                                   ${HAVE_GPM}"
3712 echo "  Does Emacs use -ldbus?                                  ${HAVE_DBUS}"
3713 echo "  Does Emacs use -lgconf?                                 ${HAVE_GCONF}"
3714 echo "  Does Emacs use -lselinux?                               ${HAVE_LIBSELINUX}"
3715 echo "  Does Emacs use -lgnutls (BROKEN)?                       ${HAVE_GNUTLS}"
3716 echo "  Does Emacs use -lxml2?                                  ${HAVE_LIBXML2}"
3717
3718 echo "  Does Emacs use -lfreetype?                              ${HAVE_FREETYPE}"
3719 echo "  Does Emacs use -lm17n-flt?                              ${HAVE_M17N_FLT}"
3720 echo "  Does Emacs use -lotf?                                   ${HAVE_LIBOTF}"
3721 echo "  Does Emacs use -lxft?                                   ${HAVE_XFT}"
3722
3723 echo "  Does Emacs use toolkit scroll bars?                     ${USE_TOOLKIT_SCROLL_BARS}"
3724 echo
3725
3726 if test $USE_XASSERTS = yes; then
3727    echo "  Compiling with asserts turned on."
3728    CPPFLAGS="$CPPFLAGS -DXASSERTS=1"
3729 fi
3730
3731 echo
3732
3733 if test "$HAVE_NS" = "yes"; then
3734    echo
3735    echo "You must run \"make install\" in order to test the built application.
3736 The installed application will go to nextstep/Emacs.app and can be
3737 run or moved from there."
3738    if test "$EN_NS_SELF_CONTAINED" = "yes"; then
3739       echo "The application will be fully self-contained."
3740     else
3741       echo "The lisp resources for the application will be installed under ${prefix}.
3742 You may need to run \"make install\" with sudo.  The application will fail
3743 to run if these resources are not installed."
3744    fi
3745    echo
3746 fi
3747
3748 if test "$HAVE_DBUS" = yes && test "${opsys}" != "gnu-linux"; then
3749   echo "D-Bus integration has been tested for GNU/Linux only."
3750   echo
3751 fi
3752
3753
3754 # Remove any trailing slashes in these variables.
3755 [test "${prefix}" != NONE &&
3756   prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
3757 test "${exec_prefix}" != NONE &&
3758   exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
3759
3760 dnl You might wonder (I did) why epaths.h is generated by running make,
3761 dnl rather than just letting configure generate it from epaths.in.
3762 dnl One reason is that the various paths are not fully expanded (see above);
3763 dnl eg gamedir=${prefix}/var/games/emacs.
3764 dnl Secondly, the GNU Coding standards require that one should be able
3765 dnl to run `make prefix=/some/where/else' and override the values set
3766 dnl by configure.  This also explains the `move-if-change' test and
3767 dnl the use of force in the `epaths-force' rule in Makefile.in.
3768 AC_OUTPUT(Makefile lib-src/Makefile oldXMenu/Makefile \
3769         doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
3770         doc/lispref/Makefile src/Makefile \
3771         lwlib/Makefile lisp/Makefile leim/Makefile, [
3772
3773 ### Make the necessary directories, if they don't exist.
3774 for dir in etc lisp ; do
3775   test -d ${dir} || mkdir ${dir}
3776 done
3777
3778 echo creating src/epaths.h
3779 ${MAKE-make} epaths-force
3780
3781 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
3782   echo creating src/.gdbinit
3783   echo source $srcdir/src/.gdbinit > src/.gdbinit
3784 fi
3785
3786 ], [GCC="$GCC" NON_GNU_CPP="$NON_GNU_CPP" CPP="$CPP" CPPFLAGS="$CPPFLAGS"])
3787
3788 m4_if(dnl       Do not change this comment
3789    arch-tag: 156a4dd5-bddc-4d18-96ac-f37742cf6a5e
3790 )dnl