configure.ac

   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) 1994-1996, 1999-2013 Free Software Foundation, Inc.
   8 dnl
   9 dnl  This file is part of GNU Emacs.
  10 dnl
  11 dnl  GNU Emacs is free software: you can redistribute it and/or modify
  12 dnl  it under the terms of the GNU General Public License as published by
  13 dnl  the Free Software Foundation, either version 3 of the License, or
  14 dnl  (at your option) any later version.
  15 dnl
  16 dnl  GNU Emacs is distributed in the hope that it will be useful,
  17 dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 dnl  GNU General Public License for more details.
  20 dnl
  21 dnl  You should have received a copy of the GNU General Public License
  22 dnl  along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 AC_PREREQ(2.65)
  25 AC_INIT(emacs, 24.3.50)
  26
  27 dnl This is the documented way to record the args passed to configure,
  28 dnl rather than $ac_configure_args.
  29 emacs_config_options="$@"
  30 ## Add some environment variables, if they were passed via the environment
  31 ## rather than on the command-line.
  32 for var in CFLAGS CPPFLAGS LDFLAGS; do
  33     case "$emacs_config_options" in
  34       *$var=*) continue ;;
  35     esac
  36     eval val="\$${var}"
  37     test x"$val" = x && continue
  38     emacs_config_options="${emacs_config_options}${emacs_config_options:+ }$var=\"$val\""
  39 done
  40
  41 AC_CONFIG_HEADER(src/config.h:src/config.in)
  42 AC_CONFIG_SRCDIR(src/lisp.h)
  43 AC_CONFIG_AUX_DIR(build-aux)
  44 dnl Fairly arbitrary, older versions might work too.
  45 AM_INIT_AUTOMAKE(1.11)
  46
  47 dnl Support for --program-prefix, --program-suffix and
  48 dnl --program-transform-name options
  49 AC_ARG_PROGRAM
  50
  51 dnl It is important that variables on the RHS not be expanded here,
  52 dnl hence the single quotes.  This is per the GNU coding standards, see
  53 dnl (autoconf) Installation Directory Variables
  54 dnl See also epaths.h below.
  55 lispdir='${datadir}/emacs/${version}/lisp'
  56 leimdir='${datadir}/emacs/${version}/leim'
  57 standardlisppath='${lispdir}:${leimdir}'
  58 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
  59 '${datadir}/emacs/site-lisp'
  60 lisppath='${locallisppath}:${standardlisppath}'
  61 etcdir='${datadir}/emacs/${version}/etc'
  62 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
  63 docdir='${datadir}/emacs/${version}/etc'
  64 gamedir='${localstatedir}/games/emacs'
  65
  66 dnl Special option to disable the most of other options.
  67 AC_ARG_WITH(all,
  68 [AS_HELP_STRING([--without-all],
  69                 [omit almost all features and build
  70                 small executable with minimal dependencies])],
  71   with_features=$withval,
  72   with_features=yes)
  73
  74 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
  75 dnl Create a new --with option that defaults to being disabled.
  76 dnl NAME is the base name of the option.  The shell variable with_NAME
  77 dnl   will be set to either the user's value (if the option is
  78 dnl   specified; 'yes' for a plain --with-NAME) or to 'no' (if the
  79 dnl   option is not specified).  Note that the shell variable name is
  80 dnl   constructed as autoconf does, by replacing non-alphanumeric
  81 dnl   characters with "_".
  82 dnl HELP-STRING is the help text for the option.
  83 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
  84   AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
  85     m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
  86 ])dnl
  87
  88 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
  89 dnl Create a new --with option that defaults to $with_features.
  90 dnl NAME is the base name of the option.  The shell variable with_NAME
  91 dnl   will be set either to 'no' (for a plain --without-NAME) or to
  92 dnl   'yes' (if the option is not specified).  Note that the shell
  93 dnl   variable name is constructed as autoconf does, by replacing
  94 dnl   non-alphanumeric characters with "_".
  95 dnl HELP-STRING is the help text for the option.
  96 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
  97   AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
  98    m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
  99 ])dnl
 100
 101 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
 102 if test "$with_pop" = yes; then
 103    AC_DEFINE(MAIL_USE_POP)
 104 fi
 105 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
 106
 107 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
 108 if test "$with_kerberos" != no; then
 109    AC_DEFINE(KERBEROS)
 110 fi
 111 AH_TEMPLATE(KERBEROS,
 112             [Define to support Kerberos-authenticated POP mail retrieval.])dnl
 113
 114 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
 115 if test "${with_kerberos5}" != no; then
 116   if test "${with_kerberos}" = no; then
 117     with_kerberos=yes
 118     AC_DEFINE(KERBEROS)
 119   fi
 120   AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
 121 fi
 122
 123 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
 124 dnl FIXME hesiod support may not be present, so it seems like an error
 125 dnl to define, or at least use, this unconditionally.
 126 if test "$with_hesiod" != no; then
 127   AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
 128 fi
 129
 130 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
 131 if test "$with_mmdf" != no; then
 132    AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
 133 fi
 134
 135 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
 136 if test "$with_mail_unlink" != no; then
 137    AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
 138 fi
 139
 140 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
 141     [string giving default POP mail host])],
 142     AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
 143
 144 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
 145
 146 dnl FIXME currently it is not the last.
 147 dnl This should be the last --with option, because --with-x is
 148 dnl added later on when we find the file name of X, and it's best to
 149 dnl keep them together visually.
 150 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
 151  [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
 152 [         case "${withval}" in
 153             y | ye | yes )      val=gtk ;;
 154             n | no )            val=no  ;;
 155             l | lu | luc | luci | lucid )       val=lucid ;;
 156             a | at | ath | athe | athen | athena )      val=athena ;;
 157             m | mo | mot | moti | motif )       val=motif ;;
 158             g | gt | gtk  )     val=gtk ;;
 159             gtk2  )     val=gtk2 ;;
 160             gtk3  )     val=gtk3 ;;
 161             * )
 162 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
 163 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
 164 `gtk2' or `gtk3'.  `yes' and `gtk' are synonyms.
 165 `athena' and `lucid' are synonyms.])
 166             ;;
 167           esac
 168           with_x_toolkit=$val
 169 ])
 170
 171 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
 172 if test "$with_wide_int" = yes; then
 173   AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
 174 fi
 175
 176 dnl _ON results in a '--without' option in the --help output, so
 177 dnl the help text should refer to "don't compile", etc.
 178 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
 179 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
 180 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
 181 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
 182 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
 183 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
 184 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
 185 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
 186
 187 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
 188 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
 189 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
 190
 191 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
 192 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
 193 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
 194 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
 195 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
 196
 197 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
 198 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
 199 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
 200 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
 201 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
 202 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
 203
 204 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
 205  [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
 206  [ case "${withval}" in
 207     y | ye | yes )      val=yes ;;
 208     n | no )            val=no  ;;
 209     g | gf | gfi | gfil | gfile )       val=gfile ;;
 210     i | in | ino | inot | inoti | inotif | inotify )    val=inotify ;;
 211     w | w3 | w32 )      val=w32 ;;
 212     * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
 213 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
 214 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
 215 otherwise for the first of `gfile' or `inotify' that is usable.])
 216     ;;
 217    esac
 218    with_file_notification=$val
 219  ],
 220  [with_file_notification=$with_features])
 221
 222 ## For the times when you want to build Emacs but don't have
 223 ## a suitable makeinfo, and can live without the manuals.
 224 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
 225 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
 226
 227 ## Makefile.in needs the cache file name.
 228 AC_SUBST(cache_file)
 229
 230 ## This is an option because I do not know if all info/man support
 231 ## compressed files, nor how to test if they do so.
 232 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
 233 if test $with_compress_info = yes; then
 234    GZIP_INFO=yes
 235 else
 236    GZIP_INFO=
 237 fi
 238 AC_SUBST(GZIP_INFO)
 239
 240 AC_ARG_WITH([pkg-config-prog],dnl
 241 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
 242                   [file name of pkg-config for finding GTK and librsvg])])
 243 if test "X${with_pkg_config_prog}" != X; then
 244    if test "${with_pkg_config_prog}" != yes; then
 245       PKG_CONFIG="${with_pkg_config_prog}"
 246    fi
 247 fi
 248
 249 AC_ARG_WITH(gameuser,dnl
 250 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
 251 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
 252   && gameuser="${with_gameuser}"
 253 test "X$gameuser" = X && gameuser=games
 254
 255 AC_ARG_WITH([gnustep-conf],dnl
 256 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
 257    [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
 258 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
 259   GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
 260 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
 261      GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
 262
 263 AC_ARG_ENABLE(ns-self-contained,
 264 [AS_HELP_STRING([--disable-ns-self-contained],
 265                 [disable self contained build under NeXTstep])],
 266    EN_NS_SELF_CONTAINED=$enableval,
 267    EN_NS_SELF_CONTAINED=yes)
 268
 269 AC_ARG_ENABLE(locallisppath,
 270 [AS_HELP_STRING([--enable-locallisppath=PATH],
 271                 [directories Emacs should search for lisp files specific
 272                  to this site])],
 273 if test "${enableval}" = "no"; then
 274   locallisppath=
 275 elif test "${enableval}" != "yes"; then
 276   locallisppath=${enableval}
 277 fi)
 278
 279 AC_ARG_ENABLE(checking,
 280 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
 281                 [enable expensive run-time checks.  With LIST,
 282                  enable only specific categories of checks.
 283                  Categories are: all,yes,no.
 284                  Flags are: stringbytes, stringoverrun, stringfreelist,
 285                  xmallocoverrun, conslist, glyphs])],
 286 [ac_checking_flags="${enableval}"],[])
 287 IFS="${IFS=     }"; ac_save_IFS="$IFS"; IFS="$IFS,"
 288 for check in $ac_checking_flags
 289 do
 290         case $check in
 291         # these set all the flags to specific states
 292         yes)            ac_enable_checking=1 ;;
 293         no)             ac_enable_checking= ;
 294                         ac_gc_check_stringbytes= ;
 295                         ac_gc_check_string_overrun= ;
 296                         ac_gc_check_string_free_list= ;
 297                         ac_xmalloc_overrun= ;
 298                         ac_gc_check_cons_list= ;
 299                         ac_glyphs_debug= ;;
 300         all)            ac_enable_checking=1 ;
 301                         ac_gc_check_stringbytes=1 ;
 302                         ac_gc_check_string_overrun=1 ;
 303                         ac_gc_check_string_free_list=1 ;
 304                         ac_xmalloc_overrun=1 ;
 305                         ac_gc_check_cons_list=1 ;
 306                         ac_glyphs_debug=1 ;;
 307         # these enable particular checks
 308         stringbytes)    ac_gc_check_stringbytes=1 ;;
 309         stringoverrun)  ac_gc_check_string_overrun=1 ;;
 310         stringfreelist) ac_gc_check_string_free_list=1 ;;
 311         xmallocoverrun) ac_xmalloc_overrun=1 ;;
 312         conslist)       ac_gc_check_cons_list=1 ;;
 313         glyphs)         ac_glyphs_debug=1 ;;
 314         *)      AC_MSG_ERROR(unknown check category $check) ;;
 315         esac
 316 done
 317 IFS="$ac_save_IFS"
 318
 319 if test x$ac_enable_checking != x ; then
 320   AC_DEFINE(ENABLE_CHECKING, 1,
 321 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
 322 fi
 323 if test x$ac_gc_check_stringbytes != x ; then
 324   AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
 325 [Define this temporarily to hunt a bug.  If defined, the size of
 326    strings is redundantly recorded in sdata structures so that it can
 327    be compared to the sizes recorded in Lisp strings.])
 328 fi
 329 if test x$ac_gc_check_string_overrun != x ; then
 330   AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
 331 [Define this to check for short string overrun.])
 332 fi
 333 if test x$ac_gc_check_string_free_list != x ; then
 334   AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
 335 [Define this to check the string free list.])
 336 fi
 337 if test x$ac_xmalloc_overrun != x ; then
 338   AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
 339 [Define this to check for malloc buffer overrun.])
 340 fi
 341 if test x$ac_gc_check_cons_list != x ; then
 342   AC_DEFINE(GC_CHECK_CONS_LIST, 1,
 343 [Define this to check for errors in cons list.])
 344 fi
 345 if test x$ac_glyphs_debug != x ; then
 346   AC_DEFINE(GLYPH_DEBUG, 1,
 347 [Define this to enable glyphs debugging code.])
 348 fi
 349
 350 AC_ARG_ENABLE(check-lisp-object-type,
 351 [AS_HELP_STRING([--enable-check-lisp-object-type],
 352                 [enable compile time checks for the Lisp_Object data type.
 353                 This is useful for development for catching certain types of bugs.])],
 354 if test "${enableval}" != "no"; then
 355    AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
 356    [Define this to enable compile time checks for the Lisp_Object data type.])
 357 fi)
 358
 359
 360 dnl The name of this option is unfortunate.  It predates, and has no
 361 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
 362 dnl Actually, it stops it working.
 363 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
 364 AC_ARG_ENABLE(profiling,
 365 [AS_HELP_STRING([--enable-profiling],
 366                 [build emacs with low-level, gprof profiling support.
 367                 Mainly useful for debugging Emacs itself.  May not work on
 368                 all platforms.  Stops profiler.el working.])],
 369 [ac_enable_profiling="${enableval}"],[])
 370 if test x$ac_enable_profiling != x ; then
 371    PROFILING_CFLAGS="-DPROFILING=1 -pg"
 372 else
 373    PROFILING_CFLAGS=
 374 fi
 375 AC_SUBST(PROFILING_CFLAGS)
 376
 377 AC_ARG_ENABLE(autodepend,
 378 [AS_HELP_STRING([--enable-autodepend],
 379                 [automatically generate dependencies to .h-files.
 380                  Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
 381                  found])],
 382 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
 383
 384 AC_ARG_ENABLE(gtk-deprecation-warnings,
 385 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
 386                 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
 387 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
 388
 389 #### Make srcdir absolute, if it isn't already.  It's important to
 390 #### avoid running the file name through pwd unnecessarily, since pwd can
 391 #### give you automounter prefixes, which can go away.  We do all this
 392 #### so Emacs can find its files when run uninstalled.
 393 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
 394 unset CDPATH
 395 case "${srcdir}" in
 396   [[\\/]]* | ?:[[\\/]]*) ;;
 397   . )
 398     ## We may be able to use the $PWD environment variable to make this
 399     ## absolute.  But sometimes PWD is inaccurate.
 400     ## Note: we used to use $PWD at the end instead of `pwd`,
 401     ## but that tested only for a well-formed and valid PWD,
 402     ## it did not object when PWD was well-formed and valid but just wrong.
 403     if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`"  ;
 404     then
 405       srcdir="$PWD"
 406     else
 407       srcdir=`(cd "$srcdir"; pwd)`
 408     fi
 409   ;;
 410   *  ) srcdir=`(cd "$srcdir"; pwd)` ;;
 411 esac
 412
 413 ### Canonicalize the configuration name.
 414
 415 AC_CANONICAL_HOST
 416 canonical=$host
 417 configuration=${host_alias-${build_alias-$host}}
 418
 419 dnl This used to use changequote, but, apart from `changequote is evil'
 420 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
 421 dnl the great gob of text.  Thus it's not processed for possible expansion.
 422 dnl Just make sure the brackets remain balanced.
 423 dnl
 424 dnl Since Emacs can't find matching pairs of quotes, boundaries are
 425 dnl indicated by comments.
 426 dnl quotation begins
 427 [
 428
 429 ### If you add support for a new configuration, add code to this
 430 ### switch statement to recognize your configuration name and select
 431 ### the appropriate operating system file.
 432
 433 ### You would hope that you could choose an s/*.h
 434 ### file based on the operating system portion.  However, it turns out
 435 ### that each s/*.h file is pretty manufacturer-specific.
 436 ### So we basically have to have a special case for each
 437 ### configuration name.
 438 ###
 439 ### As far as handling version numbers on operating systems is
 440 ### concerned, make sure things will fail in a fixable way.  If
 441 ### /etc/MACHINES doesn't say anything about version numbers, be
 442 ### prepared to handle anything reasonably.  If version numbers
 443 ### matter, be sure /etc/MACHINES says something about it.
 444
 445 opsys='' unported=no
 446 case "${canonical}" in
 447
 448   ## GNU/Linux and similar ports
 449   *-*-linux* )
 450     opsys=gnu-linux
 451   ;;
 452
 453   ## FreeBSD ports
 454   *-*-freebsd* )
 455     opsys=freebsd
 456   ;;
 457
 458   ## DragonFly ports
 459   *-*-dragonfly* )
 460     opsys=dragonfly
 461   ;;
 462
 463   ## FreeBSD kernel + glibc based userland
 464   *-*-kfreebsd*gnu* )
 465     opsys=gnu-kfreebsd
 466   ;;
 467
 468   ## NetBSD ports
 469   *-*-netbsd* )
 470     opsys=netbsd
 471   ;;
 472
 473   ## OpenBSD ports
 474   *-*-openbsd* )
 475     opsys=openbsd
 476   ;;
 477
 478   ## Apple Darwin / Mac OS X
 479   *-apple-darwin* )
 480     case "${canonical}" in
 481       i[3456]86-* )  ;;
 482       powerpc-* )    ;;
 483       x86_64-* )     ;;
 484       * )            unported=yes ;;
 485     esac
 486     opsys=darwin
 487     ## Use fink packages if available.
 488     ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
 489 ##    if test -d /sw/include && test -d /sw/lib; then
 490 ##      GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
 491 ##      NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
 492 ##    fi
 493   ;;
 494
 495   ## Cygwin ports
 496   *-*-cygwin )
 497     opsys=cygwin
 498   ;;
 499
 500   ## HP 9000 series 700 and 800, running HP/UX
 501   hppa*-hp-hpux10.2* )
 502     opsys=hpux10-20
 503   ;;
 504   hppa*-hp-hpux1[1-9]* )
 505     opsys=hpux11
 506     CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
 507   ;;
 508
 509   ## IBM machines
 510   rs6000-ibm-aix4.[23]* )
 511     opsys=aix4-2
 512   ;;
 513   powerpc-ibm-aix4.[23]*  )
 514     opsys=aix4-2
 515   ;;
 516   rs6000-ibm-aix[56]* )
 517     opsys=aix4-2
 518   ;;
 519   powerpc-ibm-aix[56]*  )
 520     opsys=aix4-2
 521   ;;
 522
 523   ## Silicon Graphics machines
 524   ## Iris 4D
 525   mips-sgi-irix6.5 )
 526     opsys=irix6-5
 527     # Without defining _LANGUAGE_C, things get masked out in the headers
 528     # so that, for instance, grepping for `free' in stdlib.h fails and
 529     # AC_HEADER_STD_C fails.   (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
 530     NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
 531   ;;
 532
 533   ## Suns
 534   *-sun-solaris* \
 535     | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
 536     | x86_64-*-solaris2*    | x86_64-*-sunos5*)
 537     case "${canonical}" in
 538       i[3456]86-*-* )   ;;
 539       amd64-*-*|x86_64-*-*) ;;
 540       sparc* )          ;;
 541       * )               unported=yes ;;
 542     esac
 543     case "${canonical}" in
 544       *-sunos5.6* | *-solaris2.6* )
 545                 opsys=sol2-6
 546                 RANLIB="ar -ts"
 547                 ;;
 548       *-sunos5.[7-9]* | *-solaris2.[7-9]* )
 549                 opsys=sol2-6
 550                 emacs_check_sunpro_c=yes
 551                 ;;
 552       *-sunos5* | *-solaris* )
 553                 opsys=sol2-10
 554                 emacs_check_sunpro_c=yes
 555                 ;;
 556     esac
 557     ## Watch out for a compiler that we know will not work.
 558     case "${canonical}" in
 559      *-solaris* | *-sunos5* )
 560                 if [ "x$CC" = x/usr/ucb/cc ]; then
 561                   ## /usr/ucb/cc doesn't work;
 562                   ## we should find some other compiler that does work.
 563                   unset CC
 564                 fi
 565                 ;;
 566       *) ;;
 567     esac
 568   ;;
 569
 570   ## Intel 386 machines where we don't care about the manufacturer.
 571   i[3456]86-*-* )
 572     case "${canonical}" in
 573       *-darwin* )               opsys=darwin ;;
 574       *-mingw32 )
 575                 opsys=mingw32
 576                 # MinGW overrides and adds some system headers in nt/inc.
 577                 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
 578                 ;;
 579       *-sysv4.2uw* )            opsys=unixware ;;
 580       *-sysv5uw* )              opsys=unixware ;;
 581       *-sysv5OpenUNIX* )        opsys=unixware ;;
 582       ## Otherwise, we'll fall through to the generic opsys code at the bottom.
 583     esac
 584   ;;
 585
 586   * )
 587     unported=yes
 588   ;;
 589 esac
 590
 591 ### If the code above didn't choose an operating system, just choose
 592 ### an operating system based on the configuration name.  You really
 593 ### only want to use this when you have no idea what the right
 594 ### operating system is; if you know what operating systems a machine
 595 ### runs, it's cleaner to make it explicit in the case statement
 596 ### above.
 597 if test x"${opsys}" = x; then
 598   case "${canonical}" in
 599     *-gnu* )                            opsys=gnu ;;
 600     * )
 601       unported=yes
 602     ;;
 603   esac
 604 fi
 605
 606 ]
 607 dnl quotation ends
 608
 609 if test $unported = yes; then
 610   AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
 611 Check `etc/MACHINES' for recognized configuration names.])
 612 fi
 613
 614
 615 #### Choose a compiler.
 616
 617 dnl Sets GCC=yes if using gcc.
 618 AC_PROG_CC
 619 AM_PROG_CC_C_O
 620
 621 if test x$GCC = xyes; then
 622   test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
 623 else
 624   test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
 625 fi
 626
 627 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
 628 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
 629 dnl that clash with MinGW.
 630 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
 631
 632 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
 633 # as we don't use them.
 634 AC_DEFUN([gl_FCNTL_O_FLAGS])
 635 # Avoid gnulib's threadlib module, as we do threads our own way.
 636 AC_DEFUN([gl_THREADLIB])
 637
 638 # Initialize gnulib right after choosing the compiler.
 639 dnl Amongst other things, this sets AR and ARFLAGS.
 640 gl_EARLY
 641
 642 if test "$ac_test_CFLAGS" != set; then
 643   # It's helpful to have C macros available to GDB, so prefer -g3 to -g
 644   # if -g3 works and the user does not specify CFLAGS.
 645   # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
 646   case $CFLAGS in
 647     '-g')
 648       emacs_g3_CFLAGS='-g3';;
 649     '-g -O2')
 650       emacs_g3_CFLAGS='-g3 -O2';;
 651     *)
 652       emacs_g3_CFLAGS='';;
 653   esac
 654   if test -n "$emacs_g3_CFLAGS"; then
 655     emacs_save_CFLAGS=$CFLAGS
 656     CFLAGS=$emacs_g3_CFLAGS
 657     AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
 658       [emacs_cv_prog_cc_g3],
 659       [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
 660          [emacs_cv_prog_cc_g3=yes],
 661          [emacs_cv_prog_cc_g3=no])])
 662     if test $emacs_cv_prog_cc_g3 != yes; then
 663       CFLAGS=$emacs_save_CFLAGS
 664     fi
 665     if test $opsys = mingw32; then
 666       CFLAGS="$CFLAGS -gdwarf-2"
 667     fi
 668   fi
 669
 670   case $CFLAGS in
 671     *-O*) ;;
 672     *)
 673       # No optimization flag was inferred for this non-GCC compiler.
 674       # Try -O.  This is needed for xlc on AIX; see Bug#14258.
 675       emacs_save_CFLAGS=$CFLAGS
 676       test -z "$CFLAGS" || CFLAGS="$CFLAGS "
 677       CFLAGS=${CFLAGS}-O
 678       AC_CACHE_CHECK([whether $CC accepts -O],
 679         [emacs_cv_prog_cc_o],
 680         [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
 681            [emacs_cv_prog_cc_o=yes],
 682            [emacs_cv_prog_cc_o=no])])
 683       if test $emacs_cv_prog_cc_o != yes; then
 684         CFLAGS=$emacs_save_CFLAGS
 685       fi ;;
 686   esac
 687 fi
 688
 689 AC_ARG_ENABLE([gcc-warnings],
 690   [AS_HELP_STRING([--enable-gcc-warnings],
 691                   [turn on lots of GCC warnings/errors. This is intended for
 692                    developers, and may generate false alarms when used
 693                    with older or non-GNU development tools.])],
 694   [case $enableval in
 695      yes|no) ;;
 696      *)      AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
 697    esac
 698    gl_gcc_warnings=$enableval],
 699   [gl_gcc_warnings=no]
 700 )
 701
 702 AC_ARG_ENABLE(link-time-optimization,
 703 [AS_HELP_STRING([--enable-link-time-optimization],
 704                 [build emacs with link-time optimization.
 705                  This is supported only for GCC since 4.5.0.])],
 706 if test "${enableval}" != "no"; then
 707    AC_MSG_CHECKING([whether link-time optimization is supported])
 708    ac_lto_supported=no
 709    if test x$GCC = xyes; then
 710       CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
 711       if test x$CPUS != x; then
 712          LTO="-flto=$CPUS"
 713       else
 714          LTO="-flto"
 715       fi
 716       old_CFLAGS=$CFLAGS
 717       CFLAGS="$CFLAGS $LTO"
 718       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
 719         [ac_lto_supported=yes], [ac_lto_supported=no])
 720       CFLAGS="$old_CFLAGS"
 721    fi
 722    AC_MSG_RESULT([$ac_lto_supported])
 723    if test "$ac_lto_supported" = "yes"; then
 724       CFLAGS="$CFLAGS $LTO"
 725    fi
 726 fi)
 727
 728 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
 729 # ------------------------------------------------
 730 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
 731 # Otherwise, run RUN-IF-NOT-FOUND.
 732 AC_DEFUN([gl_GCC_VERSION_IFELSE],
 733   [AC_PREPROC_IFELSE(
 734     [AC_LANG_PROGRAM(
 735       [[
 736 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
 737 /* ok */
 738 #else
 739 # error "your version of gcc is older than $1.$2"
 740 #endif
 741       ]]),
 742     ], [$3], [$4])
 743   ]
 744 )
 745
 746 # When compiling with GCC, prefer -isystem to -I when including system
 747 # include files, to avoid generating useless diagnostics for the files.
 748 if test "$gl_gcc_warnings" != yes; then
 749   isystem='-I'
 750 else
 751   isystem='-isystem '
 752
 753   # This, $nw, is the list of warnings we disable.
 754   nw=
 755
 756   case $with_x_toolkit in
 757     lucid | athena | motif)
 758        # Old toolkits mishandle 'const'.
 759        nw="$nw -Wwrite-strings"
 760        ;;
 761     *)
 762        gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
 763        ;;
 764   esac
 765   AC_SUBST([WERROR_CFLAGS])
 766
 767   nw="$nw -Wsystem-headers"         # Don't let system headers trigger warnings
 768   nw="$nw -Woverlength-strings"     # Not a problem these days
 769   nw="$nw -Wlogical-op"             # any use of fwrite provokes this
 770   nw="$nw -Wformat-nonliteral"      # we do this a lot
 771   nw="$nw -Wvla"                    # warnings in gettext.h
 772   nw="$nw -Wnested-externs"         # use of XARGMATCH/verify_function__
 773   nw="$nw -Wswitch-default"         # Too many warnings for now
 774   nw="$nw -Winline"                 # OK to ignore 'inline'
 775   nw="$nw -Wjump-misses-init"       # We sometimes safely jump over init.
 776   nw="$nw -Wstrict-overflow"        # OK to optimize assuming that
 777                                     # signed overflow has undefined behavior
 778   nw="$nw -Wsync-nand"              # irrelevant here, and provokes ObjC warning
 779   nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
 780   nw="$nw -Wbad-function-cast"      # These casts are no worse than others.
 781
 782   # Emacs doesn't care about shadowing; see
 783   # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
 784   nw="$nw -Wshadow"
 785
 786   # Emacs's use of alloca inhibits protecting the stack.
 787   nw="$nw -Wstack-protector"
 788
 789   # The following line should be removable at some point.
 790   nw="$nw -Wsuggest-attribute=pure"
 791
 792   # clang is unduly picky about some things.
 793   AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
 794     [AC_COMPILE_IFELSE(
 795        [AC_LANG_PROGRAM([[
 796             #ifndef __clang__
 797               #error "not clang"
 798             #endif
 799           ]])],
 800        [emacs_cv_clang=yes],
 801        [emacs_cv_clang=no])])
 802   if test $emacs_cv_clang = yes; then
 803     nw="$nw -Wcast-align"
 804   fi
 805
 806   gl_MANYWARN_ALL_GCC([ws])
 807   gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
 808   for w in $ws; do
 809     gl_WARN_ADD([$w])
 810   done
 811   gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
 812   gl_WARN_ADD([-Wno-sign-compare])     # Too many warnings for now
 813   gl_WARN_ADD([-Wno-type-limits])      # Too many warnings for now
 814   gl_WARN_ADD([-Wno-switch])           # Too many warnings for now
 815   gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
 816   gl_WARN_ADD([-Wno-format-nonliteral])
 817
 818   # In spite of excluding -Wlogical-op above, it is enabled, as of
 819   # gcc 4.5.0 20090517.
 820   gl_WARN_ADD([-Wno-logical-op])
 821
 822   # More things that clang is unduly picky about.
 823   if test $emacs_cv_clang = yes; then
 824     gl_WARN_ADD([-Wno-format-extra-args])
 825     gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
 826     gl_WARN_ADD([-Wno-unused-command-line-argument])
 827     gl_WARN_ADD([-Wno-unused-value])
 828   fi
 829
 830   gl_WARN_ADD([-fdiagnostics-show-option])
 831   gl_WARN_ADD([-funit-at-a-time])
 832
 833   AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
 834   AH_VERBATIM([FORTIFY_SOURCE],
 835   [/* Enable compile-time and run-time bounds-checking, and some warnings,
 836       without upsetting glibc 2.15+. */
 837    #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
 838    # define _FORTIFY_SOURCE 2
 839    #endif
 840   ])
 841   AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
 842
 843   # We use a slightly smaller set of warning options for lib/.
 844   # Remove the following and save the result in GNULIB_WARN_CFLAGS.
 845   nw=
 846   nw="$nw -Wunused-macros"
 847
 848   gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
 849   AC_SUBST([GNULIB_WARN_CFLAGS])
 850 fi
 851
 852
 853
 854 dnl Some other nice autoconf tests.
 855 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
 856 dnl AC_PROG_INSTALL
 857 dnl AC_PROG_MKDIR_P
 858 dnl if test "x$RANLIB" = x; then
 859 dnl   AC_PROG_RANLIB
 860 dnl fi
 861
 862
 863 dnl Sadly, AC_PROG_LN_S is too restrictive.  It also tests whether links
 864 dnl can be made to directories.  This is not relevant for our usage, and
 865 dnl excludes some cases that work fine for us.  Eg MS Windows or files
 866 dnl hosted on AFS, both examples where simple links work, but links to
 867 dnl directories fail.  We use a cut-down version instead.
 868 dnl AC_PROG_LN_S
 869
 870 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
 871 rm -f conf$$ conf$$.file
 872
 873 LN_S_FILEONLY='cp -p'
 874
 875 if (echo >conf$$.file) 2>/dev/null; then
 876   if ln -s conf$$.file conf$$ 2>/dev/null; then
 877     LN_S_FILEONLY='ln -s'
 878   elif ln conf$$.file conf$$ 2>/dev/null; then
 879     LN_S_FILEONLY=ln
 880   fi
 881 fi
 882
 883 rm -f conf$$ conf$$.file
 884
 885 if test "$LN_S_FILEONLY" = "ln -s"; then
 886    AC_MSG_RESULT([yes])
 887 else
 888    AC_MSG_RESULT([no, using $LN_S_FILEONLY])
 889 fi
 890
 891 AC_SUBST(LN_S_FILEONLY)
 892
 893
 894 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
 895 dnl doesn't support links to directories, as in "ln file dir".  But that
 896 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
 897 dnl executables at "make install" time.
 898 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
 899 dnl for more details.
 900 if test "$opsys" = "mingw32"; then
 901   LN_S="ln"
 902 fi
 903
 904 AC_PATH_PROG(INSTALL_INFO, install-info, :,
 905   $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
 906 dnl Don't use GZIP, which is used by gzip for additional parameters.
 907 AC_PATH_PROG(GZIP_PROG, gzip)
 908
 909 if test $opsys = gnu-linux; then
 910   AC_PATH_PROG(PAXCTL, paxctl,,
 911     [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
 912   if test "X$PAXCTL" != X; then
 913     AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
 914     AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
 915       [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
 916       else AC_MSG_RESULT(no); PAXCTL=""; fi])
 917   fi
 918 fi
 919
 920 ## Need makeinfo >= 4.7 (?) to build the manuals.
 921 AC_PATH_PROG(MAKEINFO, makeinfo, no)
 922 dnl By this stage, configure has already checked for egrep and set EGREP,
 923 dnl or exited with an error if no egrep was found.
 924 if test "$MAKEINFO" != "no"; then
 925   case `
 926     $MAKEINFO --version 2> /dev/null |
 927     $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
 928   ` in
 929     '') MAKEINFO=no;;
 930   esac
 931 fi
 932
 933 ## Makeinfo is unusual.  For a released Emacs, the manuals are
 934 ## pre-built, and not deleted by the normal clean rules.  makeinfo is
 935 ## therefore in the category of "special tools" not normally required, which
 936 ## configure does not have to check for (eg autoconf itself).
 937 ## In a Bazaar checkout on the other hand, the manuals are not included.
 938 ## So makeinfo is a requirement to build from Bazaar, and configure
 939 ## should test for it as it does for any other build requirement.
 940 ## We use the presence of $srcdir/info/emacs to distinguish a release,
 941 ## with pre-built manuals, from a Bazaar checkout.
 942 HAVE_MAKEINFO=yes
 943
 944 if test "$MAKEINFO" = "no"; then
 945   MAKEINFO=makeinfo
 946   if test "x${with_makeinfo}" = "xno"; then
 947     HAVE_MAKEINFO=no
 948   elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
 949     AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
 950 source tree does not seem to have pre-built manuals in the `info' directory.
 951 Either install a suitable version of makeinfo, or re-run configure
 952 with the `--without-makeinfo' option to build without the manuals.] )
 953   fi
 954 fi
 955 AC_SUBST(HAVE_MAKEINFO)
 956
 957 dnl Just so that there is only a single place we need to edit.
 958 INFO_EXT=.info
 959 INFO_OPTS=--no-split
 960 AC_SUBST(INFO_EXT)
 961 AC_SUBST(INFO_OPTS)
 962
 963 dnl Add our options to ac_link now, after it is set up.
 964
 965 if test x$GCC = xyes; then
 966   test "x$GCC_LINK_TEST_OPTIONS" != x && \
 967     ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
 968 else
 969   test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
 970     ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
 971 fi
 972
 973 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
 974 dnl If we can link with the flag, it shouldn't do any harm anyhow.
 975 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
 976 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
 977 dnl if not built to support GNU ld.
 978
 979 late_LDFLAGS=$LDFLAGS
 980 if test x$GCC = xyes; then
 981   LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
 982 else
 983   LDFLAGS="$LDFLAGS -znocombreloc"
 984 fi
 985
 986 AC_MSG_CHECKING([for -znocombreloc])
 987 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
 988   [AC_MSG_RESULT(yes)],
 989   LDFLAGS=$late_LDFLAGS
 990   [AC_MSG_RESULT(no)])
 991
 992
 993 dnl The function dump-emacs will not be defined and temacs will do
 994 dnl (load "loadup") automatically unless told otherwise.
 995 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
 996 case "$opsys" in
 997   your-opsys-here) CANNOT_DUMP=yes ;;
 998 esac
 999
1000 test "$CANNOT_DUMP" = "yes" && \
1001   AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1002
1003 AC_SUBST(CANNOT_DUMP)
1004
1005
1006 UNEXEC_OBJ=unexelf.o
1007 case "$opsys" in
1008   # MSDOS uses unexcoff.o
1009   aix4-2)
1010    UNEXEC_OBJ=unexaix.o
1011    ;;
1012   cygwin)
1013    UNEXEC_OBJ=unexcw.o
1014    ;;
1015   darwin)
1016    UNEXEC_OBJ=unexmacosx.o
1017    ;;
1018   hpux10-20 | hpux11)
1019    UNEXEC_OBJ=unexhp9k800.o
1020    ;;
1021   mingw32)
1022    UNEXEC_OBJ=unexw32.o
1023    ;;
1024   sol2-10)
1025    # Use the Solaris dldump() function, called from unexsol.c, to dump
1026    # emacs, instead of the generic ELF dump code found in unexelf.c.
1027    # The resulting binary has a complete symbol table, and is better
1028    # for debugging and other observability tools (debuggers, pstack, etc).
1029    #
1030    # If you encounter a problem using dldump(), please consider sending
1031    # a message to the OpenSolaris tools-linking mailing list:
1032    #      http://mail.opensolaris.org/mailman/listinfo/tools-linking
1033    #
1034    # It is likely that dldump() works with older Solaris too, but this has
1035    # not been tested, so for now this change is for Solaris 10 or newer.
1036    UNEXEC_OBJ=unexsol.o
1037    ;;
1038 esac
1039
1040 LD_SWITCH_SYSTEM=
1041 case "$opsys" in
1042   freebsd|dragonfly)
1043    ## Let `ld' find image libs and similar things in /usr/local/lib.
1044    ## The system compiler, GCC, has apparently been modified to not
1045    ## look there, contrary to what a stock GCC would do.
1046 ### It's not our place to do this.  See bug#10313#17.
1047 ###   LD_SWITCH_SYSTEM=-L/usr/local/lib
1048       :
1049    ;;
1050
1051   gnu-linux)
1052    ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1053    case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1054    ;;
1055
1056   netbsd)
1057 ### It's not our place to do this.  See bug#10313#17.
1058 ###   LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1059       :
1060    ;;
1061
1062   openbsd)
1063    ## Han Boetes <han@boetes.org> says this is necessary,
1064    ## otherwise Emacs dumps core on elf systems.
1065    LD_SWITCH_SYSTEM="-Z"
1066    ;;
1067 esac
1068 AC_SUBST(LD_SWITCH_SYSTEM)
1069
1070 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1071
1072 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1073 ## which has not been defined yet.  When this was handled with cpp,
1074 ## it was expanded to null when configure sourced the s/*.h file.
1075 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1076 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1077 ## (or somesuch), but because it is supposed to go at the _front_
1078 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1079 ## Compare with the gnu-linux case below, which added to the end
1080 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1081 ## LD_SWITCH_SYSTEM_TEMACS.
1082 case "$opsys" in
1083   netbsd|openbsd)
1084    LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1085 esac
1086
1087
1088 C_SWITCH_MACHINE=
1089 case $canonical in
1090  alpha*)
1091   AC_CHECK_DECL([__ELF__])
1092   if test "$ac_cv_have_decl___ELF__" = "yes"; then
1093     ## With ELF, make sure that all common symbols get allocated to in the
1094     ## data section.  Otherwise, the dump of temacs may miss variables in
1095     ## the shared library that have been initialized.  For example, with
1096     ## GNU libc, __malloc_initialized would normally be resolved to the
1097     ## shared library's .bss section, which is fatal.
1098     if test "x$GCC" = "xyes"; then
1099       C_SWITCH_MACHINE="-fno-common"
1100     else
1101       AC_MSG_ERROR([What gives?  Fix me if DEC Unix supports ELF now.])
1102     fi
1103   else
1104     UNEXEC_OBJ=unexalpha.o
1105   fi
1106   ;;
1107 esac
1108 AC_SUBST(C_SWITCH_MACHINE)
1109
1110 AC_SUBST(UNEXEC_OBJ)
1111
1112 C_SWITCH_SYSTEM=
1113 ## Some programs in src produce warnings saying certain subprograms
1114 ## are too complex and need a MAXMEM value greater than 2000 for
1115 ## additional optimization.  --nils@exp-math.uni-essen.de
1116 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1117   C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1118 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1119 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1120 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1121 AC_SUBST(C_SWITCH_SYSTEM)
1122
1123
1124 LIBS_SYSTEM=
1125 case "$opsys" in
1126   ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1127   aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1128
1129   freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1130
1131   hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1132
1133   sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1134
1135   ## Motif needs -lgen.
1136   unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1137 esac
1138
1139 AC_SUBST(LIBS_SYSTEM)
1140
1141 ### Make sure subsequent tests use flags consistent with the build flags.
1142
1143 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1144   CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1145 else
1146   CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1147 fi
1148
1149 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1150 AC_DEFUN([AC_TYPE_SIZE_T])
1151 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1152 AC_DEFUN([AC_TYPE_UID_T])
1153
1154
1155 LIB_MATH=-lm
1156 dnl Current possibilities handled by sed (aix4-2 -> aix,
1157 dnl gnu-linux -> gnu/linux, etc.):
1158 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1159 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1160 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1161
1162 case $opsys in
1163   cygwin )
1164     LIB_MATH=
1165     ;;
1166   darwin )
1167     ## Adding -lm confuses the dynamic linker, so omit it.
1168     LIB_MATH=
1169     ;;
1170   freebsd | dragonfly )
1171     SYSTEM_TYPE=berkeley-unix
1172     ;;
1173   gnu-linux | gnu-kfreebsd )
1174     ;;
1175   hpux10-20 | hpux11 )
1176     ;;
1177   mingw32 )
1178     LIB_MATH=
1179     SYSTEM_TYPE=windows-nt
1180     ;;
1181   dnl NB this may be adjusted below.
1182   netbsd | openbsd )
1183     SYSTEM_TYPE=berkeley-unix
1184     ;;
1185
1186   sol2* | unixware )
1187     SYSTEM_TYPE=usg-unix-v
1188     ;;
1189
1190 esac
1191
1192 AC_SUBST(LIB_MATH)
1193 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1194   [The type of system you are compiling for; sets `system-type'.])
1195
1196
1197 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1198 pre_PKG_CONFIG_LIBS=$LIBS
1199
1200 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1201
1202 dnl This function definition taken from Gnome 2.0
1203 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1204 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1205 dnl also defines GSTUFF_PKG_ERRORS on error
1206 AC_DEFUN([PKG_CHECK_MODULES], [
1207   succeeded=no
1208
1209   if test "$PKG_CONFIG" = "no" ; then
1210      ifelse([$4], , [AC_MSG_ERROR([
1211       *** The pkg-config script could not be found. Make sure it is in your path, or give the full name of 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])
1212   else
1213      PKG_CONFIG_MIN_VERSION=0.9.0
1214      if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1215         AC_MSG_CHECKING(for $2)
1216
1217         if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1218            $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1219            $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1220             edit_cflags="
1221               s,///*,/,g
1222               s/^/ /
1223               s/ -I/ $isystem/g
1224               s/^ //
1225             "
1226             $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1227             $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1228             AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1229             succeeded=yes
1230         else
1231             AC_MSG_RESULT(no)
1232             $1_CFLAGS=""
1233             $1_LIBS=""
1234             ## If we have a custom action on failure, don't print errors, but
1235             ## do set a variable so people can do so.  Do it in a subshell
1236             ## to capture any diagnostics in invoking pkg-config.
1237             $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1238             ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1239         fi
1240
1241         AC_SUBST($1_CFLAGS)
1242         AC_SUBST($1_LIBS)
1243      else
1244         echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1245         echo "*** See http://www.freedesktop.org/software/pkgconfig"
1246      fi
1247   fi
1248
1249   if test $succeeded = yes; then
1250      ifelse([$3], , :, [$3])
1251   else
1252      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.])], [$4])
1253   fi
1254 ])
1255
1256 if test "${with_sound}" != "no"; then
1257   # Sound support for GNU/Linux, the free BSDs, and MinGW.
1258   AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1259     have_sound_header=yes, [], [
1260     #ifdef __MINGW32__
1261     #define WIN32_LEAN_AND_MEAN
1262     #include <windows.h>
1263     #endif
1264     ])
1265   # Emulation library used on NetBSD.
1266   AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1267   AC_SUBST(LIBSOUND)
1268
1269   ALSA_REQUIRED=1.0.0
1270   ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1271   PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1272   if test $HAVE_ALSA = yes; then
1273     SAVE_CFLAGS="$CFLAGS"
1274     SAVE_LIBS="$LIBS"
1275     CFLAGS="$ALSA_CFLAGS $CFLAGS"
1276     LIBS="$ALSA_LIBS $LIBS"
1277     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1278                     emacs_alsa_normal=yes,
1279                     emacs_alsa_normal=no)
1280     if test "$emacs_alsa_normal" != yes; then
1281       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1282                      [[snd_lib_error_set_handler (0);]])],
1283                      emacs_alsa_subdir=yes,
1284                      emacs_alsa_subdir=no)
1285       if test "$emacs_alsa_subdir" != yes; then
1286         AC_MSG_ERROR([pkg-config found alsa, but it does not compile.  See config.log for error messages.])
1287       fi
1288       ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1289     fi
1290
1291     CFLAGS="$SAVE_CFLAGS"
1292     LIBS="$SAVE_LIBS"
1293     LIBSOUND="$LIBSOUND $ALSA_LIBS"
1294     CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1295     AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1296   fi
1297
1298   dnl Define HAVE_SOUND if we have sound support.  We know it works and
1299   dnl compiles only on the specified platforms.  For others, it
1300   dnl probably doesn't make sense to try.
1301   if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1302      case "$opsys" in
1303        dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1304        gnu-linux|freebsd|netbsd|mingw32)
1305          AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1306          ;;
1307      esac
1308   fi
1309
1310   AC_SUBST(CFLAGS_SOUND)
1311 fi
1312
1313 dnl checks for header files
1314 AC_CHECK_HEADERS_ONCE(
1315   sys/systeminfo.h
1316   coff.h pty.h
1317   sys/resource.h
1318   sys/utsname.h pwd.h utmp.h util.h)
1319
1320 AC_MSG_CHECKING(if personality LINUX32 can be set)
1321 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1322                emacs_cv_personality_linux32=yes,
1323                emacs_cv_personality_linux32=no)
1324 AC_MSG_RESULT($emacs_cv_personality_linux32)
1325
1326 if test $emacs_cv_personality_linux32 = yes; then
1327   AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1328             [Define to 1 if personality LINUX32 can be set.])
1329 fi
1330
1331 dnl On Solaris 8 there's a compilation warning for term.h because
1332 dnl it doesn't define `bool'.
1333 AC_CHECK_HEADERS(term.h, , , -)
1334 AC_HEADER_TIME
1335 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1336                                       ]])
1337 if test $ac_cv_have_decl_sys_siglist != yes; then
1338   # For Tru64, at least:
1339   AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1340                                           ]])
1341 fi
1342 AC_HEADER_SYS_WAIT
1343
1344 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1345 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1346 #if HAVE_SYS_SOCKET_H
1347 #include <sys/socket.h>
1348 #endif])
1349 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1350 #if HAVE_SYS_SOCKET_H
1351 #include <sys/socket.h>
1352 #endif])
1353 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1354 #if HAVE_SYS_SOCKET_H
1355 #include <sys/socket.h>
1356 #endif])
1357
1358 dnl checks for structure members
1359 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1360                   struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1361                   struct ifreq.ifr_addr,
1362                   struct ifreq.ifr_addr.sa_len], , ,
1363                  [AC_INCLUDES_DEFAULT
1364 #if HAVE_SYS_SOCKET_H
1365 #include <sys/socket.h>
1366 #endif
1367 #if HAVE_NET_IF_H
1368 #include <net/if.h>
1369 #endif])
1370
1371 dnl Check for endianness.
1372 dnl AC_C_BIGENDIAN is done by gnulib.
1373
1374 dnl check for Make feature
1375 dnl AC_PROG_MAKE_SET is done by Automake.
1376
1377 DEPFLAGS=
1378 MKDEPDIR=":"
1379 deps_frag=deps.mk
1380 dnl check for GNU Make if we have GCC and autodepend is on.
1381 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1382    AC_MSG_CHECKING([whether we are using GNU Make])
1383    HAVE_GNU_MAKE=no
1384    testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1385    if test "x$testval" != x; then
1386       HAVE_GNU_MAKE=yes
1387    else
1388       ac_enable_autodepend=no
1389    fi
1390    AC_MSG_RESULT([$HAVE_GNU_MAKE])
1391    if test $HAVE_GNU_MAKE = yes; then
1392       AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1393       SAVE_CFLAGS="$CFLAGS"
1394       CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1395       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1396       CFLAGS="$SAVE_CFLAGS"
1397       test -f deps.d || ac_enable_autodepend=no
1398       rm -rf deps.d
1399       AC_MSG_RESULT([$ac_enable_autodepend])
1400    fi
1401    if test $ac_enable_autodepend = yes; then
1402       DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1403       ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1404       MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1405       deps_frag=autodeps.mk
1406    fi
1407 fi
1408 deps_frag=$srcdir/src/$deps_frag
1409 AC_SUBST(MKDEPDIR)
1410 AC_SUBST(DEPFLAGS)
1411 AC_SUBST_FILE(deps_frag)
1412
1413
1414 lisp_frag=$srcdir/src/lisp.mk
1415 AC_SUBST_FILE(lisp_frag)
1416
1417
1418 dnl checks for operating system services
1419 AC_SYS_LONG_FILE_NAMES
1420
1421 #### Choose a window system.
1422
1423 ## We leave window_system equal to none if
1424 ## we end up building without one.  Any new window system should
1425 ## set window_system to an appropriate value and add objects to
1426 ## window-system-specific substs.
1427
1428 window_system=none
1429 AC_PATH_X
1430 if test "$no_x" != yes; then
1431   window_system=x11
1432 fi
1433
1434 LD_SWITCH_X_SITE_RPATH=
1435 if test "${x_libraries}" != NONE; then
1436   if test -n "${x_libraries}"; then
1437     LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1438     LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1439   fi
1440   x_default_search_path=""
1441   x_search_path=${x_libraries}
1442   if test -z "${x_search_path}"; then
1443     x_search_path=/usr/lib
1444   fi
1445   for x_library in `echo ${x_search_path}: | \
1446                     sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1447     x_search_path="\
1448 ${x_library}/X11/%L/%T/%N%C%S:\
1449 ${x_library}/X11/%l/%T/%N%C%S:\
1450 ${x_library}/X11/%T/%N%C%S:\
1451 ${x_library}/X11/%L/%T/%N%S:\
1452 ${x_library}/X11/%l/%T/%N%S:\
1453 ${x_library}/X11/%T/%N%S"
1454     if test x"${x_default_search_path}" = x; then
1455       x_default_search_path=${x_search_path}
1456     else
1457       x_default_search_path="${x_search_path}:${x_default_search_path}"
1458     fi
1459   done
1460 fi
1461 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1462
1463 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1464   C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1465 fi
1466
1467 if test x"${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="$CFLAGS -x objective-c"
1492 GNU_OBJC_CFLAGS=
1493 LIBS_GNUSTEP=
1494 if test "${with_ns}" != no; then
1495   if test "${opsys}" = darwin; then
1496      NS_IMPL_COCOA=yes
1497      ns_appdir=`pwd`/nextstep/Emacs.app
1498      ns_appbindir=${ns_appdir}/Contents/MacOS
1499      ns_appresdir=${ns_appdir}/Contents/Resources
1500      ns_appsrc=Cocoa/Emacs.base
1501   elif test -f $GNUSTEP_CONFIG_FILE; then
1502      NS_IMPL_GNUSTEP=yes
1503      ns_appdir=`pwd`/nextstep/Emacs.app
1504      ns_appbindir=${ns_appdir}
1505      ns_appresdir=${ns_appdir}/Resources
1506      ns_appsrc=GNUstep/Emacs.base
1507      dnl FIXME sourcing this several times in subshells seems inefficient.
1508      GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1509      GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1510      dnl I seemed to need these as well with GNUstep-startup 0.25.
1511      GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1512      GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1513      test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1514        GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1515      test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1516        GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1517      CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1518      CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1519      LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1520      LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1521      dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1522      dnl If they had chosen to either define it or not, we could have
1523      dnl just used AC_CHECK_DECL here.
1524      AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1525        emacs_cv_objc_exceptions,
1526 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1527 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1528 1;
1529 #else
1530 fail;
1531 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1532      if test $emacs_cv_objc_exceptions = yes; then
1533        dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1534        AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1535          [Define if GNUstep uses ObjC exceptions.])
1536        GNU_OBJC_CFLAGS="-fobjc-exceptions"
1537      fi
1538   fi
1539
1540   dnl This is only used while we test the NS headers, it gets reset below.
1541   CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1542
1543   AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1544                   [AC_MSG_ERROR([`--with-ns' was specified, but the include
1545   files are missing or cannot be compiled.])])
1546
1547   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1548                                      [
1549 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1550 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1551  ; /* OK */
1552 #else
1553 #error "OSX 10.4 or newer required"
1554 #endif
1555 #endif
1556                     ])],
1557                     ns_osx_have_104=yes,
1558                     ns_osx_have_104=no)
1559   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1560                                      [NSInteger i;])],
1561                     ns_have_nsinteger=yes,
1562                     ns_have_nsinteger=no)
1563   if test $ns_osx_have_104 = no; then
1564      AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1565   fi
1566   if test $ns_have_nsinteger = yes; then
1567     AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1568   fi
1569 fi
1570
1571 AC_SUBST(LIBS_GNUSTEP)
1572
1573 INSTALL_ARCH_INDEP_EXTRA=install-etc
1574 ns_self_contained=no
1575 NS_OBJ=
1576 NS_OBJC_OBJ=
1577 if test "${HAVE_NS}" = yes; then
1578   if test "$with_toolkit_scroll_bars" = "no"; then
1579     AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1580   fi
1581
1582   window_system=nextstep
1583   # set up packaging dirs
1584   if test "${EN_NS_SELF_CONTAINED}" = yes; then
1585      ns_self_contained=yes
1586      prefix=${ns_appresdir}
1587      exec_prefix=${ns_appbindir}
1588      dnl This one isn't really used, only archlibdir is.
1589      libexecdir="\${ns_appbindir}/libexec"
1590      archlibdir="\${ns_appbindir}/libexec"
1591      docdir="\${ns_appresdir}/etc"
1592      etcdir="\${ns_appresdir}/etc"
1593      dnl FIXME maybe set datarootdir instead.
1594      dnl That would also get applications, icons, man.
1595      infodir="\${ns_appresdir}/info"
1596      mandir="\${ns_appresdir}/man"
1597      lispdir="\${ns_appresdir}/lisp"
1598      leimdir="\${ns_appresdir}/leim"
1599      INSTALL_ARCH_INDEP_EXTRA=
1600   fi
1601   NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1602 fi
1603 CFLAGS="$tmp_CFLAGS"
1604 CPPFLAGS="$tmp_CPPFLAGS"
1605 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1606 AC_SUBST(ns_self_contained)
1607 AC_SUBST(NS_OBJ)
1608 AC_SUBST(NS_OBJC_OBJ)
1609
1610 HAVE_W32=no
1611 W32_OBJ=
1612 W32_LIBS=
1613 EMACSRES=
1614 CLIENTRES=
1615 CLIENTW=
1616 W32_RES_LINK=
1617 EMACS_MANIFEST=
1618 if test "${with_w32}" != no; then
1619   case "${opsys}" in
1620     cygwin)
1621       AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1622              [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1623                    cannot be found.])])
1624     ;;
1625     mingw32)
1626     ## Using --with-w32 with MinGW is a no-op, but we allow it.
1627     ;;
1628     *)
1629       AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1630     ;;
1631   esac
1632 fi
1633
1634 if test "${opsys}" = "mingw32"; then
1635   AC_MSG_CHECKING([whether Windows API headers are recent enough])
1636   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1637      #include <windows.h>
1638      #include <usp10.h>]],
1639    [[PIMAGE_NT_HEADERS pHeader;
1640      PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1641    [emacs_cv_w32api=yes
1642     HAVE_W32=yes],
1643    emacs_cv_w32api=no)
1644   AC_MSG_RESULT($emacs_cv_w32api)
1645   if test "${emacs_cv_w32api}" = "no"; then
1646     AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1647   fi
1648 fi
1649
1650 FIRSTFILE_OBJ=
1651 NTDIR=
1652 LIBS_ECLIENT=
1653 LIB_WSOCK32=
1654 NTLIB=
1655 CM_OBJ="cm.o"
1656 XARGS_LIMIT=
1657 if test "${HAVE_W32}" = "yes"; then
1658   AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1659   AC_CHECK_TOOL(WINDRES, [windres],
1660                 [AC_MSG_ERROR([No resource compiler found.])])
1661   W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1662   W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1663   EMACSRES="emacs.res"
1664   case "$canonical" in
1665     x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1666     *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1667   esac
1668   if test "${opsys}" = "cygwin"; then
1669     W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1670     W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1671     # Tell the linker that emacs.res is an object (which we compile from
1672     # the rc file), not a linker script.
1673     W32_RES_LINK="-Wl,emacs.res"
1674   else
1675     W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1676     W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1677     W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1678     W32_RES_LINK="\$(EMACSRES)"
1679     CLIENTRES="emacsclient.res"
1680     CLIENTW="emacsclientw\$(EXEEXT)"
1681     FIRSTFILE_OBJ=firstfile.o
1682     NTDIR=nt
1683     CM_OBJ=
1684     LIBS_ECLIENT="-lcomctl32"
1685     LIB_WSOCK32="-lwsock32"
1686     NTLIB="ntlib.$ac_objext"
1687     XARGS_LIMIT="-s 10000"
1688   fi
1689 fi
1690 AC_SUBST(W32_OBJ)
1691 AC_SUBST(W32_LIBS)
1692 AC_SUBST(EMACSRES)
1693 AC_SUBST(EMACS_MANIFEST)
1694 AC_SUBST(CLIENTRES)
1695 AC_SUBST(CLIENTW)
1696 AC_SUBST(W32_RES_LINK)
1697 AC_SUBST(FIRSTFILE_OBJ)
1698 AC_SUBST(NTDIR)
1699 AC_SUBST(CM_OBJ)
1700 AC_SUBST(LIBS_ECLIENT)
1701 AC_SUBST(LIB_WSOCK32)
1702 AC_SUBST(NTLIB)
1703 AC_SUBST(XARGS_LIMIT)
1704
1705 if test "${HAVE_W32}" = "yes"; then
1706   window_system=w32
1707   with_xft=no
1708 fi
1709
1710 ## $window_system is now set to the window system we will
1711 ## ultimately use.
1712
1713 term_header=
1714 HAVE_X_WINDOWS=no
1715 HAVE_X11=no
1716 USE_X_TOOLKIT=none
1717
1718 case "${window_system}" in
1719   x11 )
1720     HAVE_X_WINDOWS=yes
1721     HAVE_X11=yes
1722     term_header=xterm.h
1723     case "${with_x_toolkit}" in
1724       athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1725       motif ) USE_X_TOOLKIT=MOTIF ;;
1726       gtk ) with_gtk=yes
1727             term_header=gtkutil.h
1728 dnl Don't set this for GTK.  A lot of tests below assumes Xt when
1729 dnl USE_X_TOOLKIT is set.
1730             USE_X_TOOLKIT=none ;;
1731       gtk2 ) with_gtk2=yes
1732              term_header=gtkutil.h
1733              USE_X_TOOLKIT=none ;;
1734       gtk3 ) with_gtk3=yes
1735              term_header=gtkutil.h
1736              USE_X_TOOLKIT=none ;;
1737       no ) USE_X_TOOLKIT=none ;;
1738 dnl If user did not say whether to use a toolkit, make this decision later:
1739 dnl use the toolkit if we have gtk, or X11R5 or newer.
1740       * ) USE_X_TOOLKIT=maybe ;;
1741     esac
1742   ;;
1743   nextstep )
1744     term_header=nsterm.h
1745   ;;
1746   w32 )
1747     term_header=w32term.h
1748   ;;
1749 esac
1750
1751 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1752    AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1753    if test "$HAVE_XSERVER" = true ||
1754       test -n "$DISPLAY" ||
1755       test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1756         AC_MSG_ERROR([You seem to be running X, but no X development libraries
1757 were found.  You should install the relevant development files for X
1758 and for the toolkit you want, such as Gtk+, Lesstif or Motif.  Also make
1759 sure you have development files for image handling, i.e.
1760 tiff, gif, jpeg, png and xpm.
1761 If you are sure you want Emacs compiled without X window support, pass
1762   --without-x
1763 to configure.])
1764    fi
1765 fi
1766
1767 ### If we're using X11, we should use the X menu package.
1768 HAVE_MENUS=no
1769 case ${HAVE_X11} in
1770   yes ) HAVE_MENUS=yes ;;
1771 esac
1772
1773 # Does the opsystem file prohibit the use of the GNU malloc?
1774 # Assume not, until told otherwise.
1775 GNU_MALLOC=yes
1776
1777 AC_CACHE_CHECK(
1778   [whether malloc is Doug Lea style],
1779   [emacs_cv_var_doug_lea_malloc],
1780   [AC_LINK_IFELSE(
1781      [AC_LANG_PROGRAM(
1782         [[#include <malloc.h>
1783           static void hook (void) {}]],
1784         [[malloc_set_state (malloc_get_state ());
1785           __after_morecore_hook = hook;
1786           __malloc_initialize_hook = hook;]])],
1787      [emacs_cv_var_doug_lea_malloc=yes],
1788      [emacs_cv_var_doug_lea_malloc=no])])
1789 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1790
1791
1792 dnl See comments in aix4-2.h about maybe using system malloc there.
1793 system_malloc=no
1794 case "$opsys" in
1795   ## darwin ld insists on the use of malloc routines in the System framework.
1796   darwin|sol2-10) system_malloc=yes ;;
1797 esac
1798
1799 if test "${system_malloc}" = "yes"; then
1800   AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1801   GNU_MALLOC=no
1802   GNU_MALLOC_reason="
1803     (The GNU allocators don't work with this system configuration.)"
1804   GMALLOC_OBJ=
1805   VMLIMIT_OBJ=
1806 else
1807   test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1808   VMLIMIT_OBJ=vm-limit.o
1809
1810   AC_CHECK_HEADERS([sys/vlimit.h])
1811   AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1812     [AC_LINK_IFELSE(
1813        [AC_LANG_PROGRAM(
1814          [[extern char data_start[]; char ch;]],
1815          [[return data_start < &ch;]])],
1816        [emacs_cv_data_start=yes],
1817        [emacs_cv_data_start=no])])
1818   if test $emacs_cv_data_start = yes; then
1819     AC_DEFINE([HAVE_DATA_START], 1,
1820       [Define to 1 if data_start is the address of the start
1821        of the main data segment.])
1822   fi
1823 fi
1824 AC_SUBST(GMALLOC_OBJ)
1825 AC_SUBST(VMLIMIT_OBJ)
1826
1827 if test "$doug_lea_malloc" = "yes" ; then
1828   if test "$GNU_MALLOC" = yes ; then
1829     GNU_MALLOC_reason="
1830       (Using Doug Lea's new malloc from the GNU C Library.)"
1831   fi
1832   AC_DEFINE(DOUG_LEA_MALLOC, 1,
1833             [Define to 1 if you are using the GNU C Library.])
1834
1835   ## Use mmap directly for allocating larger buffers.
1836   ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1837   ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1838   ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1839   case "$opsys" in
1840     gnu*) REL_ALLOC=no ;;
1841   esac
1842 fi
1843
1844 if test x"${REL_ALLOC}" = x; then
1845   REL_ALLOC=${GNU_MALLOC}
1846 fi
1847
1848 use_mmap_for_buffers=no
1849 case "$opsys" in
1850   cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1851 esac
1852
1853 AC_FUNC_MMAP
1854 if test $use_mmap_for_buffers = yes; then
1855   AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1856   REL_ALLOC=no
1857 fi
1858
1859 LIBS="$LIBS_SYSTEM $LIBS"
1860
1861 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1862 AC_CHECK_LIB(dnet, dnet_ntoa)
1863 dnl This causes -lresolv to get used in subsequent tests,
1864 dnl which causes failures on some systems such as HPUX 9.
1865 dnl AC_CHECK_LIB(resolv, gethostbyname)
1866
1867 dnl FIXME replace main with a function we actually want from this library.
1868 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1869
1870 dnl Check if pthreads is available.
1871 LIB_PTHREAD=
1872 AC_CHECK_HEADERS_ONCE(pthread.h)
1873 if test "$ac_cv_header_pthread_h"; then
1874   dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1875   dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1876   dnl testing for pthread_self if Emacs uses gmalloc.c.
1877   if test "$GMALLOC_OBJ" = gmalloc.o; then
1878     emacs_pthread_function=pthread_atfork
1879   else
1880     emacs_pthread_function=pthread_self
1881   fi
1882   AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1883 fi
1884 if test "$HAVE_PTHREAD" = yes; then
1885   case "${canonical}" in
1886     *-hpux*) ;;
1887     *) LIB_PTHREAD="-lpthread"
1888        LIBS="$LIB_PTHREAD $LIBS" ;;
1889   esac
1890   AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1891 fi
1892 AC_SUBST([LIB_PTHREAD])
1893
1894 AC_CHECK_LIB(pthreads, cma_open)
1895
1896 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1897 ## HAVE_LIBPTHREADS.  That was not defined earlier in configure when
1898 ## the system file was sourced.  Hence the value of LIBS_SYSTEM
1899 ## added to LIBS in configure would never contain the pthreads part,
1900 ## but the value used in Makefiles might.  FIXME?
1901 ##
1902 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1903 ## be harmless on older versions of X where it happens to exist.
1904 test "$opsys" = "aix4-2" && \
1905   test $ac_cv_lib_pthreads_cma_open = yes && \
1906   LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1907
1908 dnl Check for need for bigtoc support on IBM AIX
1909
1910 case ${host_os} in
1911 aix*)
1912   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1913     case $GCC in
1914     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1915     *) gdb_cv_bigtoc=-bbigtoc ;;
1916     esac
1917
1918     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1919     AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1920   ])
1921   ;;
1922 esac
1923
1924 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1925 # used for the tests that follow.  We set them back to REAL_CFLAGS and
1926 # REAL_CPPFLAGS later on.
1927
1928 REAL_CFLAGS="$CFLAGS"
1929 REAL_CPPFLAGS="$CPPFLAGS"
1930
1931 if test "${HAVE_X11}" = "yes"; then
1932   DEFS="$C_SWITCH_X_SITE $DEFS"
1933   LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1934   LIBS="-lX11 $LIBS"
1935   CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1936   CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1937
1938   # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1939   # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1940   # but it's more convenient here to set LD_RUN_PATH since this
1941   # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1942   if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1943     LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1944     export LD_RUN_PATH
1945   fi
1946
1947   if test "${opsys}" = "gnu-linux"; then
1948     AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1949     AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1950      [[XOpenDisplay ("foo");]])],
1951      [xgnu_linux_first_failure=no],
1952      [xgnu_linux_first_failure=yes])
1953     if test "${xgnu_linux_first_failure}" = "yes"; then
1954       OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1955       OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1956       OLD_CPPFLAGS="$CPPFLAGS"
1957       OLD_LIBS="$LIBS"
1958       LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1959       C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1960       CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1961       LIBS="$LIBS -b i486-linuxaout"
1962       AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1963        [[XOpenDisplay ("foo");]])],
1964        [xgnu_linux_second_failure=no],
1965        [xgnu_linux_second_failure=yes])
1966       if test "${xgnu_linux_second_failure}" = "yes"; then
1967         # If we get the same failure with -b, there is no use adding -b.
1968         # So take it out.  This plays safe.
1969         LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1970         C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1971         CPPFLAGS="$OLD_CPPFLAGS"
1972         LIBS="$OLD_LIBS"
1973         AC_MSG_RESULT(no)
1974       else
1975         AC_MSG_RESULT(yes)
1976       fi
1977     else
1978       AC_MSG_RESULT(no)
1979     fi
1980   fi
1981
1982   # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1983   # header files included from there.
1984   AC_MSG_CHECKING(for Xkb)
1985   AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1986 #include <X11/XKBlib.h>]],
1987         [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1988         emacs_xkb=yes, emacs_xkb=no)
1989   AC_MSG_RESULT($emacs_xkb)
1990   if test $emacs_xkb = yes; then
1991     AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
1992   fi
1993
1994   AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1995 XScreenNumberOfScreen)
1996 fi
1997
1998 if test "${window_system}" = "x11"; then
1999   AC_MSG_CHECKING(X11 version 6)
2000   AC_CACHE_VAL(emacs_cv_x11_version_6,
2001   [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2002 [[#if XlibSpecificationRelease < 6
2003 fail;
2004 #endif
2005 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2006   if test $emacs_cv_x11_version_6 = yes; then
2007     AC_MSG_RESULT(6 or newer)
2008     AC_DEFINE(HAVE_X11R6, 1,
2009               [Define to 1 if you have the X11R6 or newer version of Xlib.])
2010     AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2011     ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2012     ## XIM support.
2013     case "$opsys" in
2014       sol2-*) : ;;
2015       *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2016            [Define if you have usable X11R6-style XIM support.])
2017          ;;
2018     esac
2019   else
2020     AC_MSG_RESULT(before 6)
2021   fi
2022 fi
2023
2024
2025 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2026 HAVE_RSVG=no
2027 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2028   if test "${with_rsvg}" != "no"; then
2029     RSVG_REQUIRED=2.11.0
2030     RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2031
2032     PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2033     AC_SUBST(RSVG_CFLAGS)
2034     AC_SUBST(RSVG_LIBS)
2035
2036     if test $HAVE_RSVG = yes; then
2037       AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2038       CFLAGS="$CFLAGS $RSVG_CFLAGS"
2039       LIBS="$RSVG_LIBS $LIBS"
2040     fi
2041   fi
2042 fi
2043
2044 HAVE_IMAGEMAGICK=no
2045 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2046   if test "${with_imagemagick}" != "no"; then
2047     ## 6.2.8 is the earliest version known to work, but earlier versions
2048     ## might work - let us know if you find one.
2049     ## 6.0.7 does not work.  See bug#7955.
2050     ## 6.8.2 makes Emacs crash; see Bug#13867.
2051     IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2052     PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2053     AC_SUBST(IMAGEMAGICK_CFLAGS)
2054     AC_SUBST(IMAGEMAGICK_LIBS)
2055
2056     if test $HAVE_IMAGEMAGICK = yes; then
2057       AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2058       CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2059       LIBS="$IMAGEMAGICK_LIBS $LIBS"
2060       AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2061     fi
2062   fi
2063 fi
2064
2065
2066 HAVE_GTK=no
2067 GTK_OBJ=
2068 gtk_term_header=$term_header
2069 check_gtk2=no
2070 gtk3_pkg_errors=
2071 if test "${opsys}" != "mingw32"; then
2072   if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2073     GLIB_REQUIRED=2.28
2074     GTK_REQUIRED=3.0
2075     GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2076
2077     dnl Checks for libraries.
2078     PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2079     if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2080        AC_MSG_ERROR($GTK_PKG_ERRORS)
2081     fi
2082     if test "$pkg_check_gtk" = "yes"; then
2083        AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2084        GTK_OBJ=emacsgtkfixed.o
2085        gtk_term_header=gtkutil.h
2086        USE_GTK_TOOLKIT="GTK3"
2087        if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2088           GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2089           GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2090        fi
2091     else
2092        check_gtk2=yes
2093        gtk3_pkg_errors="$GTK_PKG_ERRORS "
2094     fi
2095   fi
2096
2097   if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2098     GLIB_REQUIRED=2.10
2099     GTK_REQUIRED=2.10
2100     GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2101
2102     dnl Checks for libraries.
2103     PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2104     if test "$pkg_check_gtk" = "no" &&
2105        { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2106     then
2107       AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2108     fi
2109     test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2110   fi
2111 fi
2112
2113 if test x"$pkg_check_gtk" = xyes; then
2114
2115   AC_SUBST(GTK_CFLAGS)
2116   AC_SUBST(GTK_LIBS)
2117   C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2118   CFLAGS="$CFLAGS $GTK_CFLAGS"
2119   LIBS="$GTK_LIBS $LIBS"
2120   dnl Try to compile a simple GTK program.
2121   AC_MSG_CHECKING([whether GTK compiles])
2122   GTK_COMPILES=no
2123   AC_LINK_IFELSE(
2124     [AC_LANG_PROGRAM(
2125        [[/* Check the Gtk and Glib APIs.  */
2126          #include <gtk/gtk.h>
2127          #include <glib-object.h>
2128          static void
2129          callback (GObject *go, GParamSpec *spec, gpointer user_data)
2130          {}
2131        ]],
2132        [[
2133          GtkSettings *gs = 0;
2134          /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2135             strict C prohibits this.  Use gtk_main_iteration to test that the
2136             libraries are there.  */
2137          if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2138                                     0, 0, 0, G_CALLBACK (callback), 0))
2139            gtk_main_iteration ();
2140        ]])],
2141     [GTK_COMPILES=yes])
2142   AC_MSG_RESULT([$GTK_COMPILES])
2143   if test "${GTK_COMPILES}" != "yes"; then
2144     GTK_OBJ=
2145     if test "$USE_X_TOOLKIT" != "maybe"; then
2146       AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log.  Maybe some x11-devel files missing?]);
2147     fi
2148   else
2149     HAVE_GTK=yes
2150     AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2151     GTK_OBJ="gtkutil.o $GTK_OBJ"
2152     term_header=$gtk_term_header
2153     USE_X_TOOLKIT=none
2154     if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2155       :
2156     else
2157       AC_MSG_WARN([[Your version of Gtk+ will have problems with
2158        closing open displays.  This is no problem if you just use
2159        one display, but if you use more than one and close one of them
2160        Emacs may crash.]])
2161       sleep 3
2162     fi
2163   fi
2164
2165 fi
2166 AC_SUBST(GTK_OBJ)
2167
2168
2169 if test "${HAVE_GTK}" = "yes"; then
2170
2171   dnl  GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2172   dnl  a lot if #ifdef:s, say we have toolkit scrollbars.
2173   if test "$with_toolkit_scroll_bars" != no; then
2174     with_toolkit_scroll_bars=yes
2175   fi
2176
2177   dnl  Check if we have the old file selection dialog declared and
2178   dnl  in the link library.  In 2.x it may be in the library,
2179   dnl  but not declared if deprecated featured has been selected out.
2180   dnl  AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2181   HAVE_GTK_FILE_SELECTION=no
2182   AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2183                    HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2184 #include <gtk/gtk.h>])
2185   if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2186     AC_CHECK_FUNCS(gtk_file_selection_new)
2187   fi
2188
2189   dnl Same as above for gtk_handle_box.
2190   HAVE_GTK_HANDLE_BOX=no
2191   AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2192                    HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2193 #include <gtk/gtk.h>])
2194   if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2195     AC_CHECK_FUNCS(gtk_handle_box_new)
2196   fi
2197
2198   dnl Same as above for gtk_tearoff_menu_item.
2199   HAVE_GTK_TEAROFF_MENU_ITEM=no
2200   AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2201                    HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2202 #include <gtk/gtk.h>])
2203   if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2204     AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2205   fi
2206
2207   dnl Check for functions introduced in 2.14 and later.
2208   AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2209                  gtk_dialog_get_action_area gtk_widget_get_sensitive \
2210                  gtk_widget_get_mapped gtk_adjustment_get_page_size \
2211                  gtk_orientable_set_orientation \
2212                  gtk_window_set_has_resize_grip)
2213
2214  term_header=gtkutil.h
2215 fi
2216
2217 dnl D-Bus has been tested under GNU/Linux only.  Must be adapted for
2218 dnl other platforms.
2219 HAVE_DBUS=no
2220 DBUS_OBJ=
2221 if test "${with_dbus}" = "yes"; then
2222    PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2223    if test "$HAVE_DBUS" = yes; then
2224      LIBS="$LIBS $DBUS_LIBS"
2225      AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2226      dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2227      dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2228      dnl D-Bus 1.5.12.
2229      AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2230                     dbus_type_is_valid \
2231                     dbus_validate_bus_name \
2232                     dbus_validate_path \
2233                     dbus_validate_interface \
2234                     dbus_validate_member)
2235      DBUS_OBJ=dbusbind.o
2236    fi
2237 fi
2238 AC_SUBST(DBUS_OBJ)
2239
2240 dnl GSettings has been tested under GNU/Linux only.
2241 HAVE_GSETTINGS=no
2242 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2243    PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2244    if test "$HAVE_GSETTINGS" = "yes"; then
2245       AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2246       SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2247       SETTINGS_LIBS="$GSETTINGS_LIBS"
2248    fi
2249 fi
2250
2251 dnl GConf has been tested under GNU/Linux only.
2252 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2253 HAVE_GCONF=no
2254 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2255    PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2256    if test "$HAVE_GCONF" = yes; then
2257       AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2258       dnl Newer GConf doesn't link with g_objects, so this is not defined.
2259       SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2260       SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2261    fi
2262 fi
2263
2264 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2265     PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2266     if test "$HAVE_GOBJECT" = "yes"; then
2267        SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2268        SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2269     fi
2270     SAVE_CFLAGS="$CFLAGS"
2271     SAVE_LIBS="$LIBS"
2272     CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2273     LIBS="$SETTINGS_LIBS $LIBS"
2274     AC_CHECK_FUNCS([g_type_init])
2275     CFLAGS="$SAVE_CFLAGS"
2276     LIBS="$SAVE_LIBS"
2277 fi
2278 AC_SUBST(SETTINGS_CFLAGS)
2279 AC_SUBST(SETTINGS_LIBS)
2280
2281
2282 dnl SELinux is available for GNU/Linux only.
2283 HAVE_LIBSELINUX=no
2284 LIBSELINUX_LIBS=
2285 if test "${with_selinux}" = "yes"; then
2286    AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2287    if test "$HAVE_LIBSELINUX" = yes; then
2288       AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2289       LIBSELINUX_LIBS=-lselinux
2290    fi
2291 fi
2292 AC_SUBST(LIBSELINUX_LIBS)
2293
2294 HAVE_GNUTLS=no
2295 if test "${with_gnutls}" = "yes" ; then
2296   PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2297   if test "${HAVE_GNUTLS}" = "yes"; then
2298     AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2299   fi
2300
2301   # Windows loads GnuTLS dynamically
2302   if test "${opsys}" = "mingw32"; then
2303     LIBGNUTLS_LIBS=
2304   else
2305     CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2306     LIBS="$LIBGNUTLS_LIBS $LIBS"
2307   fi
2308 fi
2309
2310 AC_SUBST(LIBGNUTLS_LIBS)
2311 AC_SUBST(LIBGNUTLS_CFLAGS)
2312
2313 NOTIFY_OBJ=
2314 NOTIFY_SUMMARY=no
2315
2316 dnl FIXME?  Don't auto-detect on NS, but do allow someone to specify
2317 dnl a particular library.  This doesn't make much sense?
2318 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2319   with_file_notification=no
2320 fi
2321
2322 if test "${with_file_notification}" != "no"; then
2323
2324   dnl MS Windows native file monitor is available for mingw32 only.
2325   if test "${with_file_notification}" = "w32" || \
2326      ( test "${opsys}" = "mingw32" && \
2327        test "${with_file_notification}" = "yes" ); then
2328      AC_CHECK_HEADER(windows.h)
2329      if test "$ac_cv_header_windows_h" = yes ; then
2330         AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2331         NOTIFY_OBJ=w32notify.o
2332         NOTIFY_SUMMARY="yes (w32)"
2333      elif test "${with_file_notification}" = "w32"; then
2334        AC_MSG_ERROR([File notification `w32' requested but requirements not found.])
2335      elif test "${opsys}" = "mingw32"; then
2336        dnl Do not try any further.
2337        with_file_notification=no
2338      fi
2339   fi
2340
2341   dnl g_file_monitor exists since glib 2.18.  G_FILE_MONITOR_EVENT_MOVED
2342   dnl has been added in glib 2.24.  It has been tested under
2343   dnl GNU/Linux only.  We take precedence over inotify, but this makes
2344   dnl only sense when glib has been compiled with inotify support.  How
2345   dnl to check?
2346   if test "${with_file_notification}" = "gfile" || \
2347     test "${with_file_notification}" = "yes"; then
2348      PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2349      if test "$HAVE_GFILENOTIFY" = "yes"; then
2350         AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2351         NOTIFY_OBJ=gfilenotify.o
2352         NOTIFY_SUMMARY="yes -lgio (gfile)"
2353         with_file_notification=gfile
2354      elif test "${with_file_notification}" = "gfile"; then
2355         AC_MSG_ERROR([File notification `gfile' requested but requirements not found.])
2356      fi
2357   fi
2358
2359   dnl inotify is only available on GNU/Linux.
2360   if test "${with_file_notification}" = "inotify" || \
2361     test "${with_file_notification}" = "yes"; then
2362      AC_CHECK_HEADER(sys/inotify.h)
2363      if test "$ac_cv_header_sys_inotify_h" = yes ; then
2364          AC_CHECK_FUNC(inotify_init1)
2365          if test "$ac_cv_func_inotify_init1" = yes; then
2366              AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2367            NOTIFY_OBJ=inotify.o
2368            NOTIFY_SUMMARY="yes -lglibc (inotify)"
2369            with_file_notification=inotify
2370          fi
2371      fi
2372      if test "${with_file_notification}" = "inotify" && \
2373        test -z "${NOTIFY_OBJ}"; then
2374         AC_MSG_ERROR([File notification `inotify' requested but requirements not found.])
2375      fi
2376   fi
2377 fi                              dnl ${with_file_notification} != no
2378
2379 if test -n "$NOTIFY_OBJ"; then
2380    AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2381 fi
2382 AC_SUBST(NOTIFY_OBJ)
2383 AC_SUBST(GFILENOTIFY_CFLAGS)
2384 AC_SUBST(GFILENOTIFY_LIBS)
2385
2386 dnl Do not put whitespace before the #include statements below.
2387 dnl Older compilers (eg sunos4 cc) choke on it.
2388 HAVE_XAW3D=no
2389 LUCID_LIBW=
2390 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2391   if test "$with_xaw3d" != no; then
2392     AC_CACHE_VAL(emacs_cv_xaw3d,
2393     [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2394 #include <X11/Intrinsic.h>
2395 #include <X11/Xaw3d/Simple.h>]],
2396       [[]])],
2397       [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2398                     emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2399       emacs_cv_xaw3d=no)])
2400   else
2401     emacs_cv_xaw3d=no
2402   fi
2403   if test $emacs_cv_xaw3d = yes; then
2404     AC_MSG_CHECKING(for xaw3d)
2405     AC_MSG_RESULT([yes; using Lucid toolkit])
2406     USE_X_TOOLKIT=LUCID
2407     HAVE_XAW3D=yes
2408     LUCID_LIBW=-lXaw3d
2409     AC_DEFINE(HAVE_XAW3D, 1,
2410               [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2411   else
2412     AC_MSG_CHECKING(for xaw3d)
2413     AC_MSG_RESULT(no)
2414     AC_MSG_CHECKING(for libXaw)
2415     AC_CACHE_VAL(emacs_cv_xaw,
2416     [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2417 #include <X11/Intrinsic.h>
2418 #include <X11/Xaw/Simple.h>]],
2419       [[]])],
2420       emacs_cv_xaw=yes,
2421       emacs_cv_xaw=no)])
2422     if test $emacs_cv_xaw = yes; then
2423       AC_MSG_RESULT([yes; using Lucid toolkit])
2424       USE_X_TOOLKIT=LUCID
2425       LUCID_LIBW=-lXaw
2426     elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2427       AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2428     else
2429       AC_MSG_ERROR([No X toolkit could be found.
2430 If you are sure you want Emacs compiled without an X toolkit, pass
2431   --with-x-toolkit=no
2432 to configure.  Otherwise, install the development libraries for the toolkit
2433 that you want to use (e.g. Gtk+) and re-run configure.])
2434     fi
2435   fi
2436 fi
2437
2438 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2439
2440 LIBXTR6=
2441 if test "${USE_X_TOOLKIT}" != "none"; then
2442   AC_MSG_CHECKING(X11 toolkit version)
2443   AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2444   [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2445 [[#if XtSpecificationRelease < 6
2446 fail;
2447 #endif
2448 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2449   HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2450   if test $emacs_cv_x11_toolkit_version_6 = yes; then
2451     AC_MSG_RESULT(6 or newer)
2452     AC_DEFINE(HAVE_X11XTR6, 1,
2453               [Define to 1 if you have the X11R6 or newer version of Xt.])
2454     LIBXTR6="-lSM -lICE"
2455     case "$opsys" in
2456       ## Use libw.a along with X11R6 Xt.
2457       unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2458     esac
2459   else
2460     AC_MSG_RESULT(before 6)
2461   fi
2462
2463 dnl If using toolkit, check whether libXmu.a exists.
2464 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2465   OLDLIBS="$LIBS"
2466   if test x$HAVE_X11XTR6 = xyes; then
2467     LIBS="-lXt -lSM -lICE $LIBS"
2468   else
2469     LIBS="-lXt $LIBS"
2470   fi
2471   AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2472   test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2473   dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2474 fi
2475 AC_SUBST(LIBXTR6)
2476
2477 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2478 dnl Why not just test for libxmu in the normal way?
2479 LIBXMU=-lXmu
2480 case $opsys in
2481   ## These systems don't supply Xmu.
2482   hpux* | aix4-2 )
2483     test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2484     ;;
2485   mingw32 )
2486     LIBXMU=
2487     ;;
2488 esac
2489 AC_SUBST(LIBXMU)
2490
2491 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2492 if test "${HAVE_X11}" = "yes"; then
2493   if test "${USE_X_TOOLKIT}" != "none"; then
2494     AC_CHECK_LIB(Xext, XShapeQueryExtension)
2495   fi
2496 fi
2497
2498 LIBXP=
2499 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2500   # OpenMotif may be installed in such a way on some GNU/Linux systems.
2501   if test -d /usr/include/openmotif; then
2502     CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2503     emacs_cv_openmotif=yes
2504     case "$canonical" in
2505       x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2506       test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2507       ;;
2508       *)
2509       test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2510     esac
2511   else
2512     emacs_cv_openmotif=no
2513   fi
2514   AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2515   [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2516     [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2517 int x = 5;
2518 #else
2519 Motif version prior to 2.1.
2520 #endif]])],
2521     emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2522   if test $emacs_cv_motif_version_2_1 = yes; then
2523     AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2524     if test x$emacs_cv_openmotif = xyes; then
2525       REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2526     fi
2527   else
2528     AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2529     # We put this in CFLAGS temporarily to precede other -I options
2530     # that might be in CFLAGS temporarily.
2531     # We put this in CPPFLAGS where it precedes the other -I options.
2532     OLD_CPPFLAGS=$CPPFLAGS
2533     OLD_CFLAGS=$CFLAGS
2534     CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2535     CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2536     [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2537       [[int x = 5;]])],
2538       emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2539     if test $emacs_cv_lesstif = yes; then
2540       # Make sure this -I option remains in CPPFLAGS after it is set
2541       # back to REAL_CPPFLAGS.
2542       # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2543       # have those other -I options anyway.  Ultimately, having this
2544       # directory ultimately in CPPFLAGS will be enough.
2545       REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2546       LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2547     else
2548       CFLAGS=$OLD_CFLAGS
2549       CPPFLAGS=$OLD_CPPFLAGS
2550     fi
2551   fi
2552   AC_CHECK_HEADER([Xm/BulletinB.h], [],
2553     [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2554 fi
2555
2556 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2557 dnl using Motif or Xaw3d is available, and unless
2558 dnl --with-toolkit-scroll-bars=no was specified.
2559
2560 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2561             [Define to 1 if we should use toolkit scroll bars.])dnl
2562 USE_TOOLKIT_SCROLL_BARS=no
2563 if test "${with_toolkit_scroll_bars}" != "no"; then
2564   if test "${USE_X_TOOLKIT}" != "none"; then
2565     if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2566       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2567       HAVE_XAW3D=no
2568       USE_TOOLKIT_SCROLL_BARS=yes
2569     elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2570       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2571       USE_TOOLKIT_SCROLL_BARS=yes
2572     fi
2573   elif test "${HAVE_GTK}" = "yes"; then
2574     AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2575     USE_TOOLKIT_SCROLL_BARS=yes
2576   elif test "${HAVE_NS}" = "yes"; then
2577     AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2578     USE_TOOLKIT_SCROLL_BARS=yes
2579   elif test "${HAVE_W32}" = "yes"; then
2580     AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2581     USE_TOOLKIT_SCROLL_BARS=yes
2582   fi
2583 fi
2584
2585 dnl See if XIM is available.
2586 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2587           #include <X11/Xlib.h>
2588           #include <X11/Xresource.h>]],
2589          [[XIMProc  callback;]])],
2590          [HAVE_XIM=yes
2591          AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2592          HAVE_XIM=no)
2593
2594 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2595
2596 if test "${with_xim}" != "no"; then
2597   AC_DEFINE(USE_XIM, 1,
2598             [Define to 1 if we should use XIM, if it is available.])
2599 fi
2600
2601
2602 if test "${HAVE_XIM}" != "no"; then
2603   late_CFLAGS=$CFLAGS
2604   if test "$GCC" = yes; then
2605     CFLAGS="$CFLAGS --pedantic-errors"
2606   fi
2607   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2608 #include <X11/Xlib.h>
2609 #include <X11/Xresource.h>]],
2610 [[Display *display;
2611 XrmDatabase db;
2612 char *res_name;
2613 char *res_class;
2614 XIMProc  callback;
2615 XPointer *client_data;
2616 #ifndef __GNUC__
2617 /* If we're not using GCC, it's probably not XFree86, and this is
2618    probably right, but we can't use something like --pedantic-errors.  */
2619 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2620                                            char*, XIMProc, XPointer*);
2621 #endif
2622 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2623    client_data);]])],
2624     [emacs_cv_arg6_star=yes])
2625   AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2626          [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2627 either XPointer or XPointer*.])dnl
2628   if test "$emacs_cv_arg6_star" = yes; then
2629     AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2630   else
2631     AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2632   fi
2633   CFLAGS=$late_CFLAGS
2634 fi
2635
2636 ### Start of font-backend (under any platform) section.
2637 # (nothing here yet -- this is a placeholder)
2638 ### End of font-backend (under any platform) section.
2639
2640 ### Start of font-backend (under X11) section.
2641 if test "${HAVE_X11}" = "yes"; then
2642    PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2643
2644    ## Use -lXft if available, unless `--with-xft=no'.
2645    HAVE_XFT=maybe
2646     if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2647       with_xft="no";
2648     fi
2649     if test "x${with_xft}" != "xno"; then
2650
2651       PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2652       ## Because xftfont.c uses XRenderQueryExtension, we also
2653       ## need to link to -lXrender.
2654       HAVE_XRENDER=no
2655       AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2656       if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2657         OLD_CPPFLAGS="$CPPFLAGS"
2658         OLD_CFLAGS="$CFLAGS"
2659         OLD_LIBS="$LIBS"
2660         CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2661         CFLAGS="$CFLAGS $XFT_CFLAGS"
2662         XFT_LIBS="-lXrender $XFT_LIBS"
2663         LIBS="$XFT_LIBS $LIBS"
2664         AC_CHECK_HEADER(X11/Xft/Xft.h,
2665           AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2666           [[#include <X11/X.h>]])
2667
2668         if test "${HAVE_XFT}" = "yes"; then
2669           AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2670             AC_SUBST(XFT_LIBS)
2671           C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2672         else
2673           CPPFLAGS="$OLD_CPPFLAGS"
2674           CFLAGS="$OLD_CFLAGS"
2675           LIBS="$OLD_LIBS"
2676         fi                        # "${HAVE_XFT}" = "yes"
2677       fi                          # "$HAVE_XFT" != no
2678     fi                            # "x${with_xft}" != "xno"
2679
2680     ## We used to allow building with FreeType and without Xft.
2681     ## However, the ftx font backend driver is not in good shape.
2682     if test "$HAVE_XFT" != "yes"; then
2683        dnl For the "Does Emacs use" message at the end.
2684        HAVE_XFT=no
2685        HAVE_FREETYPE=no
2686     else
2687        dnl Strict linkers fail with
2688        dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2689        dnl if -lfreetype is not specified.
2690        dnl The following is needed to set FREETYPE_LIBS.
2691        PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2692                          HAVE_FREETYPE=no)
2693
2694        test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2695     fi
2696
2697     HAVE_LIBOTF=no
2698     if test "${HAVE_FREETYPE}" = "yes"; then
2699       AC_DEFINE(HAVE_FREETYPE, 1,
2700                 [Define to 1 if using the freetype and fontconfig libraries.])
2701       if test "${with_libotf}" != "no"; then
2702         PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2703                           HAVE_LIBOTF=no)
2704         if test "$HAVE_LIBOTF" = "yes"; then
2705           AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2706           AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2707                        HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2708                        HAVE_OTF_GET_VARIATION_GLYPHS=no)
2709           if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2710             AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2711                       [Define to 1 if libotf has OTF_get_variation_glyphs.])
2712           fi
2713         fi
2714       fi
2715     dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2716     dnl Does the new font backend require it, or can it work without it?
2717     fi
2718
2719     HAVE_M17N_FLT=no
2720     if test "${HAVE_LIBOTF}" = yes; then
2721       if test "${with_m17n_flt}" != "no"; then
2722         PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2723         if test "$HAVE_M17N_FLT" = "yes"; then
2724           AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2725         fi
2726       fi
2727     fi
2728 else
2729     HAVE_XFT=no
2730     HAVE_FREETYPE=no
2731     HAVE_LIBOTF=no
2732     HAVE_M17N_FLT=no
2733 fi
2734
2735 ### End of font-backend (under X11) section.
2736
2737 AC_SUBST(FREETYPE_CFLAGS)
2738 AC_SUBST(FREETYPE_LIBS)
2739 AC_SUBST(FONTCONFIG_CFLAGS)
2740 AC_SUBST(FONTCONFIG_LIBS)
2741 AC_SUBST(LIBOTF_CFLAGS)
2742 AC_SUBST(LIBOTF_LIBS)
2743 AC_SUBST(M17N_FLT_CFLAGS)
2744 AC_SUBST(M17N_FLT_LIBS)
2745
2746 ### Use -lXpm if available, unless `--with-xpm=no'.
2747 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2748 HAVE_XPM=no
2749 LIBXPM=
2750 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2751   if test "${with_xpm}" != "no"; then
2752     SAVE_CPPFLAGS="$CPPFLAGS"
2753     SAVE_LDFLAGS="$LDFLAGS"
2754     CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2755     LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2756     AC_CHECK_HEADER(X11/xpm.h,
2757       [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2758     if test "${HAVE_XPM}" = "yes"; then
2759       AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2760       AC_EGREP_CPP(no_return_alloc_pixels,
2761       [#include "X11/xpm.h"
2762 #ifndef XpmReturnAllocPixels
2763 no_return_alloc_pixels
2764 #endif
2765       ], HAVE_XPM=no, HAVE_XPM=yes)
2766
2767       if test "${HAVE_XPM}" = "yes"; then
2768         REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2769         AC_MSG_RESULT(yes)
2770       else
2771         AC_MSG_RESULT(no)
2772         CPPFLAGS="$SAVE_CPPFLAGS"
2773         LDFLAGS="$SAVE_LDFLAGS"
2774       fi
2775     fi
2776   fi
2777
2778   if test "${HAVE_XPM}" = "yes"; then
2779     AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2780     LIBXPM=-lXpm
2781   fi
2782 fi
2783
2784 if test "${HAVE_X11}" = "yes"; then
2785   if test "${with_xpm}" != "no"; then
2786     AC_CHECK_HEADER(X11/xpm.h,
2787       [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2788     if test "${HAVE_XPM}" = "yes"; then
2789       AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2790       AC_EGREP_CPP(no_return_alloc_pixels,
2791       [#include "X11/xpm.h"
2792 #ifndef XpmReturnAllocPixels
2793 no_return_alloc_pixels
2794 #endif
2795       ], HAVE_XPM=no, HAVE_XPM=yes)
2796
2797       if test "${HAVE_XPM}" = "yes"; then
2798         AC_MSG_RESULT(yes)
2799       else
2800         AC_MSG_RESULT(no)
2801       fi
2802     fi
2803   fi
2804
2805   if test "${HAVE_XPM}" = "yes"; then
2806     AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2807     LIBXPM=-lXpm
2808   fi
2809 fi
2810
2811 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2812 ### slightly different requirements wrt image libraries (it doesn't
2813 ### use -lXpm because it loads the xpm shared library dynamically at
2814 ### run time).
2815 if test "${opsys}" = "mingw32"; then
2816   if test "${with_xpm}" != "no"; then
2817     AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2818 #define FOR_MSW 1])
2819   fi
2820
2821   if test "${HAVE_XPM}" = "yes"; then
2822     AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2823   fi
2824 fi
2825
2826 AC_SUBST(LIBXPM)
2827
2828 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2829 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2830 HAVE_JPEG=no
2831 LIBJPEG=
2832 if test "${opsys}" = "mingw32"; then
2833   if test "${with_jpeg}" != "no"; then
2834     dnl Checking for jpeglib.h can lose because of a redefinition of
2835     dnl HAVE_STDLIB_H.
2836     AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2837   fi
2838   AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2839   if test "${HAVE_JPEG}" = "yes"; then
2840     AC_DEFINE(HAVE_JPEG)
2841     AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2842         [#include <jpeglib.h>
2843          version=JPEG_LIB_VERSION
2844 ],
2845         [AC_DEFINE(HAVE_JPEG)],
2846         [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2847         HAVE_JPEG=no])
2848   fi
2849 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2850   if test "${with_jpeg}" != "no"; then
2851     dnl Checking for jpeglib.h can lose because of a redefinition of
2852     dnl  HAVE_STDLIB_H.
2853     AC_CHECK_HEADER(jerror.h,
2854       [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2855   fi
2856
2857   AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2858   if test "${HAVE_JPEG}" = "yes"; then
2859     AC_DEFINE(HAVE_JPEG)
2860     AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2861         [#include <jpeglib.h>
2862          version=JPEG_LIB_VERSION
2863 ],
2864         [AC_DEFINE(HAVE_JPEG)],
2865         [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2866         HAVE_JPEG=no])
2867   fi
2868   if test "${HAVE_JPEG}" = "yes"; then
2869     LIBJPEG=-ljpeg
2870   fi
2871 fi
2872 AC_SUBST(LIBJPEG)
2873
2874 ### Use -lpng if available, unless `--with-png=no'.
2875 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2876 HAVE_PNG=no
2877 LIBPNG=
2878 if test "${opsys}" = "mingw32"; then
2879   if test "${with_png}" != "no"; then
2880     AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2881   fi
2882   if test "${HAVE_PNG}" = "yes"; then
2883     AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2884
2885     AC_CHECK_DECL(png_longjmp,
2886       [],
2887       [AC_DEFINE(PNG_DEPSTRUCT, [],
2888          [Define to empty to suppress deprecation warnings when building
2889           with --enable-gcc-warnings and with libpng versions before 1.5,
2890           which lack png_longjmp.])],
2891       [[#ifdef HAVE_LIBPNG_PNG_H
2892         # include <libpng/png.h>
2893         #else
2894         # include <png.h>
2895         #endif
2896       ]])
2897   fi
2898 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2899   if test "${with_png}" != "no"; then
2900     # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2901     # in /usr/include/libpng.
2902     AC_CHECK_HEADERS(png.h libpng/png.h, break)
2903     if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2904       AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2905     fi
2906   fi
2907
2908   if test "${HAVE_PNG}" = "yes"; then
2909     AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2910     LIBPNG="-lpng -lz -lm"
2911
2912     AC_CHECK_DECL(png_longjmp,
2913       [],
2914       [AC_DEFINE(PNG_DEPSTRUCT, [],
2915          [Define to empty to suppress deprecation warnings when building
2916           with --enable-gcc-warnings and with libpng versions before 1.5,
2917           which lack png_longjmp.])],
2918       [[#ifdef HAVE_LIBPNG_PNG_H
2919         # include <libpng/png.h>
2920         #else
2921         # include <png.h>
2922         #endif
2923       ]])
2924   fi
2925 fi
2926 AC_SUBST(LIBPNG)
2927
2928 ### Use -ltiff if available, unless `--with-tiff=no'.
2929 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
2930 HAVE_TIFF=no
2931 LIBTIFF=
2932 if test "${opsys}" = "mingw32"; then
2933   if test "${with_tiff}" != "no"; then
2934     AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
2935   fi
2936   if test "${HAVE_TIFF}" = "yes"; then
2937     AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2938   fi
2939 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2940   if test "${with_tiff}" != "no"; then
2941     AC_CHECK_HEADER(tiffio.h,
2942       [tifflibs="-lz -lm"
2943       # At least one tiff package requires the jpeg library.
2944       if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2945       AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2946   fi
2947
2948   if test "${HAVE_TIFF}" = "yes"; then
2949     AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2950     dnl FIXME -lz -lm, as per libpng?
2951     LIBTIFF=-ltiff
2952   fi
2953 fi
2954 AC_SUBST(LIBTIFF)
2955
2956 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2957 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
2958 HAVE_GIF=no
2959 LIBGIF=
2960 if test "${opsys}" = "mingw32"; then
2961   if test "${with_gif}" != "no"; then
2962     AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
2963   fi
2964   if test "${HAVE_GIF}" = "yes"; then
2965     AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2966   fi
2967 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2968         || test "${HAVE_W32}" = "yes"; then
2969   AC_CHECK_HEADER(gif_lib.h,
2970 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2971 # Earlier versions can crash Emacs.
2972     [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2973
2974   if test "$HAVE_GIF" = yes; then
2975     LIBGIF=-lgif
2976   elif test "$HAVE_GIF" = maybe; then
2977 # If gif_lib.h but no libgif, try libungif.
2978     AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2979     test "$HAVE_GIF" = yes && LIBGIF=-lungif
2980   fi
2981
2982   if test "${HAVE_GIF}" = "yes"; then
2983     AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2984   fi
2985 fi
2986 AC_SUBST(LIBGIF)
2987
2988 dnl Check for required libraries.
2989 if test "${HAVE_X11}" = "yes"; then
2990   MISSING=""
2991   WITH_NO=""
2992   test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2993     MISSING="libXpm" && WITH_NO="--with-xpm=no"
2994   test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2995     MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2996   test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2997     MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2998   test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2999     MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3000   test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3001     MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3002
3003   if test "X${MISSING}" != X; then
3004     AC_MSG_ERROR([The following required libraries were not found:
3005     $MISSING
3006 Maybe some development libraries/packages are missing?
3007 If you don't want to link with them give
3008     $WITH_NO
3009 as options to configure])
3010   fi
3011 fi
3012
3013 ### Use -lgpm if available, unless `--with-gpm=no'.
3014 HAVE_GPM=no
3015 LIBGPM=
3016 if test "${with_gpm}" != "no"; then
3017   AC_CHECK_HEADER(gpm.h,
3018     [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3019
3020   if test "${HAVE_GPM}" = "yes"; then
3021     AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3022     LIBGPM=-lgpm
3023   fi
3024 fi
3025 AC_SUBST(LIBGPM)
3026
3027 dnl Check for malloc/malloc.h on darwin
3028 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3029
3030 GNUSTEP_CFLAGS=
3031 ### Use NeXTstep API to implement GUI.
3032 if test "${HAVE_NS}" = "yes"; then
3033   AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3034   if test "${NS_IMPL_COCOA}" = "yes"; then
3035     AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3036   fi
3037   if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3038     AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3039     # See also .m.o rule in Makefile.in */
3040     # FIXME: are all these flags really needed?  Document here why.  */
3041     GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3042     ## Extra CFLAGS applied to src/*.m files.
3043     GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3044   fi
3045   # We also have mouse menus.
3046   HAVE_MENUS=yes
3047   OTHER_FILES=ns-app
3048 fi
3049
3050 if test "${HAVE_W32}" = "yes"; then
3051   HAVE_MENUS=yes
3052 fi
3053
3054 ### Use session management (-lSM -lICE) if available
3055 HAVE_X_SM=no
3056 LIBXSM=
3057 if test "${HAVE_X11}" = "yes"; then
3058   AC_CHECK_HEADER(X11/SM/SMlib.h,
3059     [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3060
3061   if test "${HAVE_X_SM}" = "yes"; then
3062     AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3063     LIBXSM="-lSM -lICE"
3064     case "$LIBS" in
3065       *-lSM*) ;;
3066       *)      LIBS="$LIBXSM $LIBS" ;;
3067     esac
3068   fi
3069 fi
3070 AC_SUBST(LIBXSM)
3071
3072 ### Use XRandr (-lXrandr) if available
3073 HAVE_XRANDR=no
3074 if test "${HAVE_X11}" = "yes"; then
3075   XRANDR_REQUIRED=1.2.2
3076   XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3077   PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3078   if test $HAVE_XRANDR = no; then
3079     # Test old way in case pkg-config doesn't have it (older machines).
3080     AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3081       [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3082     if test $HAVE_XRANDR = yes; then
3083       XRANDR_LIBS=-lXrandr
3084       AC_SUBST(XRANDR_LIBS)
3085     fi
3086   fi
3087   if test $HAVE_XRANDR = yes; then
3088     SAVE_CFLAGS="$CFLAGS"
3089     SAVE_LIBS="$LIBS"
3090     CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3091     LIBS="$XRANDR_LIBS $LIBS"
3092     AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3093     CFLAGS="$SAVE_CFLAGS"
3094     LIBS="$SAVE_LIBS"
3095
3096     AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3097   fi
3098 fi
3099
3100 ### Use Xinerama (-lXinerama) if available
3101 HAVE_XINERAMA=no
3102 if test "${HAVE_X11}" = "yes"; then
3103   XINERAMA_REQUIRED=1.0.2
3104   XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3105   PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3106                     HAVE_XINERAMA=no)
3107   if test $HAVE_XINERAMA = no; then
3108     # Test old way in case pkg-config doesn't have it (older machines).
3109     AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3110       [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3111     if test $HAVE_XINERAMA = yes; then
3112       XINERAMA_LIBS=-lXinerama
3113       AC_SUBST(XINERAMA_LIBS)
3114     fi
3115   fi
3116   if test $HAVE_XINERAMA = yes; then
3117     AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3118   fi
3119 fi
3120
3121
3122 ### Use libxml (-lxml2) if available
3123 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3124 HAVE_LIBXML2=no
3125 if test "${with_xml2}" != "no"; then
3126   ### I'm not sure what the version number should be, so I just guessed.
3127   PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3128   # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3129   if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3130     SAVE_CPPFLAGS="$CPPFLAGS"
3131     CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3132     AC_CHECK_HEADER(libxml/HTMLparser.h,
3133       [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3134                      [#include <libxml/HTMLparser.h>])])
3135     CPPFLAGS="$SAVE_CPPFLAGS"
3136     if test "${HAVE_LIBXML2}" = "yes"; then
3137       LIBXML2_LIBS="-lxml2"
3138       LIBXML2_CFLAGS="-I/usr/include/libxml2"
3139     fi
3140   fi
3141   if test "${HAVE_LIBXML2}" = "yes"; then
3142     if test "${opsys}" != "mingw32"; then
3143       LIBS="$LIBXML2_LIBS $LIBS"
3144       AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3145     else
3146       LIBXML2_LIBS=""
3147     fi
3148     if test "${HAVE_LIBXML2}" = "yes"; then
3149       AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3150     else
3151       LIBXML2_LIBS=""
3152       LIBXML2_CFLAGS=""
3153     fi
3154   fi
3155 fi
3156 AC_SUBST(LIBXML2_LIBS)
3157 AC_SUBST(LIBXML2_CFLAGS)
3158
3159 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3160 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3161 if test "${opsys}" = "mingw32"; then
3162   emacs_cv_netdb_declares_h_errno=yes
3163 fi
3164 AC_CACHE_CHECK(whether netdb declares h_errno,
3165                emacs_cv_netdb_declares_h_errno,
3166 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3167   [[return h_errno;]])],
3168   emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3169 if test $emacs_cv_netdb_declares_h_errno = yes; then
3170   AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3171 fi
3172
3173 # sqrt and other floating-point functions such as fmod and frexp
3174 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3175 if test "${opsys}" != "mingw32"; then
3176   AC_CHECK_LIB(m, sqrt)
3177 fi
3178
3179 # Check for mail-locking functions in a "mail" library.  Probably this should
3180 # have the same check as for liblockfile below.
3181 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3182 if test $have_mail = yes; then
3183   LIBS_MAIL=-lmail
3184   LIBS="$LIBS_MAIL $LIBS"
3185   AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3186 else
3187   LIBS_MAIL=
3188 fi
3189 dnl Debian, at least:
3190 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3191 if test $have_lockfile = yes; then
3192    LIBS_MAIL=-llockfile
3193    LIBS="$LIBS_MAIL $LIBS"
3194    AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3195 else
3196 # If we have the shared liblockfile, assume we must use it for mail
3197 # locking (e.g. Debian).  If we couldn't link against liblockfile
3198 # (no liblockfile.a installed), ensure that we don't need to.
3199   dnl This works for files generally, not just executables.
3200   dnl Should we look elsewhere for it?  Maybe examine /etc/ld.so.conf?
3201   AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3202                 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3203   if test $ac_cv_prog_liblockfile = yes; then
3204     AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3205 This probably means that movemail could lose mail.
3206 There may be a `development' package to install containing liblockfile.])
3207   fi
3208 fi
3209 AC_CHECK_HEADERS_ONCE(maillock.h)
3210 AC_SUBST(LIBS_MAIL)
3211
3212 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3213 ## interlock access to the mail spool.  The alternative is a lock file named
3214 ## /usr/spool/mail/$USER.lock.
3215 mail_lock=no
3216 case "$opsys" in
3217   aix4-2) mail_lock="lockf" ;;
3218
3219   gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3220
3221   ## On GNU/Linux systems, both methods are used by various mail programs.
3222   ## I assume most people are using newer mailers that have heard of flock.
3223   ## Change this if you need to.
3224   ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3225   ## configure gets the right answers, and that means *NOT* using flock.
3226   ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3227   ## for details.'' and then uses `#ifdef DEBIAN'.  Unfortunately the
3228   ## Debian maintainer hasn't provided a clean fix for Emacs.
3229   ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3230   ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3231   ## correct logic.  -- fx
3232   ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3233   ## liblockfile is a Free Software replacement for libmail, used on
3234   ## Debian systems and elsewhere. -rfr.
3235   gnu-*)
3236     mail_lock="flock"
3237     if test $have_mail = yes || test $have_lockfile = yes; then
3238       test $ac_cv_header_maillock_h = yes && mail_lock=no
3239     fi
3240     ;;
3241
3242   mingw32)
3243     mail_lock="none-needed" ;;
3244 esac
3245
3246 BLESSMAIL_TARGET=
3247 case "$mail_lock" in
3248   flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3249
3250   lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3251
3252   none-needed) ;;
3253
3254   *) BLESSMAIL_TARGET="need-blessmail" ;;
3255 esac
3256 AC_SUBST(BLESSMAIL_TARGET)
3257
3258
3259 AC_CHECK_FUNCS(accept4 gethostname \
3260 getrusage get_current_dir_name \
3261 lrand48 \
3262 select getpagesize setlocale \
3263 getrlimit setrlimit shutdown getaddrinfo \
3264 strsignal setitimer \
3265 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3266 gai_strerror mkostemp mkstemp getline getdelim sync \
3267 difftime posix_memalign \
3268 getpwent endpwent getgrent endgrent \
3269 touchlock \
3270 cfmakeraw cfsetspeed copysign __executable_start log2)
3271
3272 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3273 ## has a broken `rint' in some library versions including math library
3274 ## version number A.09.05.
3275 ## You can fix the math library by installing patch number PHSS_4630.
3276 ## But we can fix it more reliably for Emacs by just not using rint.
3277 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3278 case $opsys in
3279    hpux*) : ;;
3280    *) AC_CHECK_FUNCS(random rint) ;;
3281 esac
3282
3283 dnl Cannot use AC_CHECK_FUNCS
3284 AC_CACHE_CHECK([for __builtin_unwind_init],
3285                emacs_cv_func___builtin_unwind_init,
3286 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3287                 emacs_cv_func___builtin_unwind_init=yes,
3288                 emacs_cv_func___builtin_unwind_init=no)])
3289 if test $emacs_cv_func___builtin_unwind_init = yes; then
3290   AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3291             [Define to 1 if you have the `__builtin_unwind_init' function.])
3292 fi
3293
3294 AC_CHECK_HEADERS_ONCE(sys/un.h)
3295
3296 AC_FUNC_FSEEKO
3297
3298 # UNIX98 PTYs.
3299 AC_CHECK_FUNCS(grantpt)
3300
3301 # PTY-related GNU extensions.
3302 AC_CHECK_FUNCS(getpt posix_openpt)
3303
3304 # Check this now, so that we will NOT find the above functions in ncurses.
3305 # That is because we have not set up to link ncurses in lib-src.
3306 # It's better to believe a function is not available
3307 # than to expect to find it in ncurses.
3308 # Also we need tputs and friends to be able to build at all.
3309 AC_MSG_CHECKING([for library containing tputs])
3310 # Run a test program that contains a call to tputs, a call that is
3311 # never executed.  This tests whether a pre-'main' dynamic linker
3312 # works with the library.  It's too much trouble to actually call
3313 # tputs in the test program, due to portability hassles.  When
3314 # cross-compiling, assume the test program will run if it links.
3315 AC_DEFUN([tputs_link_source], [
3316   AC_LANG_SOURCE(
3317      [[extern void tputs (const char *, int, int (*)(int));
3318        int main (int argc, char **argv)
3319        {
3320           if (argc == 10000)
3321             tputs (argv[0], 0, 0);
3322           return 0;
3323        }]])
3324 ])
3325 if test "${opsys}" = "mingw32"; then
3326   msg='none required'
3327 else
3328   # Maybe curses should be tried earlier?
3329   # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3330   for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3331     OLIBS=$LIBS
3332     if test -z "$tputs_library"; then
3333       LIBS_TERMCAP=
3334       msg='none required'
3335     else
3336       LIBS_TERMCAP=-l$tputs_library
3337       msg=$LIBS_TERMCAP
3338       LIBS="$LIBS_TERMCAP $LIBS"
3339     fi
3340     AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3341       [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3342     LIBS=$OLIBS
3343     if test "X$msg" != Xno; then
3344       break
3345     fi
3346   done
3347 fi
3348 AC_MSG_RESULT([$msg])
3349 if test "X$msg" = Xno; then
3350   AC_MSG_ERROR([The required function `tputs' was not found in any library.
3351 The following libraries were tried (in order):
3352   libtinfo, libncurses, libterminfo, libtermcap, libcurses
3353 Please try installing whichever of these libraries is most appropriate
3354 for your system, together with its header files.
3355 For example, a libncurses-dev(el) or similar package.])
3356 fi
3357
3358 ## Use termcap instead of terminfo?
3359 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3360 TERMINFO=yes
3361 ## FIXME?  In the cases below where we unconditionally set
3362 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3363 ## if that was found above to have tputs.
3364 ## Should we use the gnu* logic everywhere?
3365 case "$opsys" in
3366   ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3367   ##  The ncurses library has been moved out of the System framework in
3368   ##  Mac OS X 10.2.  So if configure detects it, set the command-line
3369   ##  option to use it.
3370   darwin) LIBS_TERMCAP="-lncurses" ;;
3371
3372   gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3373
3374   freebsd)
3375     AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3376     AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3377     [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3378 [[#if __FreeBSD_version < 400000
3379 fail;
3380 #endif
3381 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3382
3383     AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3384
3385     if test $emacs_cv_freebsd_terminfo = yes; then
3386       LIBS_TERMCAP="-lncurses"
3387     else
3388       TERMINFO=no
3389       LIBS_TERMCAP="-ltermcap"
3390     fi
3391     ;;
3392
3393   mingw32)
3394     TERMINFO=no
3395     LIBS_TERMCAP=
3396     ;;
3397
3398   netbsd)
3399     if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3400       TERMINFO=no
3401       LIBS_TERMCAP="-ltermcap"
3402     fi
3403     ;;
3404
3405   openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3406
3407   ## hpux: Make sure we get select from libc rather than from libcurses
3408   ##  because libcurses on HPUX 10.10 has a broken version of select.
3409   ##  We used to use -lc -lcurses, but this may be cleaner.
3410   ## FIXME?  But TERMINFO = yes on hpux (it used to be explicitly
3411   # set that way, now it uses the default).  Isn't this a contradiction?
3412   hpux*) LIBS_TERMCAP="-ltermcap" ;;
3413
3414 esac
3415
3416 TERMCAP_OBJ=tparam.o
3417 if test $TERMINFO = yes; then
3418   AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3419   TERMCAP_OBJ=terminfo.o
3420 fi
3421 AC_SUBST(LIBS_TERMCAP)
3422 AC_SUBST(TERMCAP_OBJ)
3423
3424
3425 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3426 # On Darwin, res_init appears not to be useful: see bug#562 and
3427 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3428 resolv=no
3429
3430 if test $opsys != darwin; then
3431
3432   AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3433 #include <arpa/nameser.h>
3434 #include <resolv.h>]],
3435     [[return res_init();]])],
3436     have_res_init=yes, have_res_init=no)
3437   if test "$have_res_init" = no; then
3438     OLIBS="$LIBS"
3439     LIBS="$LIBS -lresolv"
3440     AC_MSG_CHECKING(for res_init with -lresolv)
3441     AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3442 #include <arpa/nameser.h>
3443 #include <resolv.h>]],
3444       [[return res_init();]])],
3445       have_res_init=yes, have_res_init=no)
3446     AC_MSG_RESULT($have_res_init)
3447     if test "$have_res_init" = yes ; then
3448       resolv=yes
3449     fi
3450     LIBS="$OLIBS"
3451   fi
3452
3453   if test "$have_res_init" = yes; then
3454     AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3455   fi
3456 fi                              dnl !darwin
3457
3458 # Do we need the Hesiod library to provide the support routines?
3459 dnl FIXME?  Should we be skipping this on Darwin too?
3460 LIBHESIOD=
3461 if test "$with_hesiod" != no ; then
3462   # Don't set $LIBS here -- see comments above.  FIXME which comments?
3463   AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3464      [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3465                   [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3466   if test "$resolv" = yes ; then
3467     RESOLVLIB=-lresolv
3468   else
3469     RESOLVLIB=
3470   fi
3471   AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3472         hesiod=yes, :, $RESOLVLIB)])
3473
3474   if test x"$hesiod" = xyes; then
3475     LIBHESIOD=-lhesiod
3476   fi
3477 fi
3478 AC_SUBST(LIBHESIOD)
3479
3480 # Do we need libresolv (due to res_init or Hesiod)?
3481 if test "$resolv" = yes && test $opsys != darwin; then
3482   LIBRESOLV=-lresolv
3483 else
3484   LIBRESOLV=
3485 fi
3486 AC_SUBST(LIBRESOLV)
3487
3488 # These tell us which Kerberos-related libraries to use.
3489 COM_ERRLIB=
3490 CRYPTOLIB=
3491 KRB5LIB=
3492 DESLIB=
3493 KRB4LIB=
3494
3495 if test "${with_kerberos}" != no; then
3496   AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3497   if test $have_com_err = yes; then
3498     COM_ERRLIB=-lcom_err
3499     LIBS="$COM_ERRLIB $LIBS"
3500   fi
3501   AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3502   if test $have_crypto = yes; then
3503     CRYPTOLIB=-lcrypto
3504     LIBS="$CRYPTOLIB $LIBS"
3505   fi
3506   AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3507   if test $have_k5crypto = yes; then
3508     CRYPTOLIB=-lk5crypto
3509     LIBS="$CRYPTOLIB $LIBS"
3510   fi
3511   AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3512   if test $have_krb5=yes; then
3513     KRB5LIB=-lkrb5
3514     LIBS="$KRB5LIB $LIBS"
3515   fi
3516   dnl FIXME Simplify.  Does not match 22 logic, thanks to default_off?
3517   if test "${with_kerberos5}" = no; then
3518     AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3519     if test $have_des425 = yes; then
3520       DESLIB=-ldes425
3521       LIBS="$DESLIB $LIBS"
3522     else
3523       AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3524       if test $have_des = yes; then
3525         DESLIB=-ldes
3526         LIBS="$DESLIB $LIBS"
3527       fi
3528     fi
3529     AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3530     if test $have_krb4 = yes; then
3531       KRB4LIB=-lkrb4
3532       LIBS="$KRB4LIB $LIBS"
3533     else
3534       AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3535       if test $have_krb = yes; then
3536         KRB4LIB=-lkrb
3537         LIBS="$KRB4LIB $LIBS"
3538       fi
3539     fi
3540   fi
3541
3542   if test "${with_kerberos5}" != no; then
3543     AC_CHECK_HEADERS(krb5.h,
3544       [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3545                         [#include <krb5.h>])])
3546   else
3547     AC_CHECK_HEADERS(krb.h,,
3548                      [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3549                                        [AC_CHECK_HEADERS(kerberos/krb.h)])])
3550   fi
3551   AC_CHECK_HEADERS(com_err.h)
3552 fi
3553
3554 AC_SUBST(COM_ERRLIB)
3555 AC_SUBST(CRYPTOLIB)
3556 AC_SUBST(KRB5LIB)
3557 AC_SUBST(DESLIB)
3558 AC_SUBST(KRB4LIB)
3559
3560 AC_CHECK_FUNCS_ONCE(tzset)
3561 AC_MSG_CHECKING(whether localtime caches TZ)
3562 AC_CACHE_VAL(emacs_cv_localtime_cache,
3563 [if test x$ac_cv_func_tzset = xyes; then
3564 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3565 char TZ_GMT0[] = "TZ=GMT0";
3566 char TZ_PST8[] = "TZ=PST8";
3567 main()
3568 {
3569   time_t now = time ((time_t *) 0);
3570   int hour_GMT0, hour_unset;
3571   if (putenv (TZ_GMT0) != 0)
3572     exit (1);
3573   hour_GMT0 = localtime (&now)->tm_hour;
3574   unsetenv("TZ");
3575   hour_unset = localtime (&now)->tm_hour;
3576   if (putenv (TZ_PST8) != 0)
3577     exit (1);
3578   if (localtime (&now)->tm_hour == hour_GMT0)
3579     exit (1);
3580   unsetenv("TZ");
3581   if (localtime (&now)->tm_hour != hour_unset)
3582     exit (1);
3583   exit (0);
3584 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3585 [# If we have tzset, assume the worst when cross-compiling.
3586 emacs_cv_localtime_cache=yes])
3587 else
3588         # If we lack tzset, report that localtime does not cache TZ,
3589         # since we can't invalidate the cache if we don't have tzset.
3590         emacs_cv_localtime_cache=no
3591 fi])dnl
3592 AC_MSG_RESULT($emacs_cv_localtime_cache)
3593 if test $emacs_cv_localtime_cache = yes; then
3594   AC_DEFINE(LOCALTIME_CACHE, 1,
3595             [Define to 1 if localtime caches TZ.])
3596 fi
3597
3598 ok_so_far=yes
3599 AC_CHECK_FUNC(socket, , ok_so_far=no)
3600 if test $ok_so_far = yes; then
3601   AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3602 fi
3603 if test $ok_so_far = yes; then
3604   AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3605 fi
3606 if test $ok_so_far = yes; then
3607 dnl Fixme: Not used.  Should this be HAVE_SOCKETS?
3608   AC_DEFINE(HAVE_INET_SOCKETS, 1,
3609             [Define to 1 if you have inet sockets.])
3610 fi
3611
3612 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3613 dnl This can be removed once we assume Autoconf 2.70.
3614 case $canonical in
3615   *-solaris2.4 | *-solaris2.4.*)
3616     dnl Disable the Autoconf-generated vfork test.
3617     : ${ac_cv_func_vfork_works=no};;
3618 esac
3619
3620 AC_FUNC_FORK
3621
3622 AC_CHECK_FUNCS(snprintf)
3623
3624 dnl Check this late.  It depends on what other libraries (lrsvg, Gtk+ etc)
3625 dnl Emacs uses.
3626 XGSELOBJ=
3627 AC_MSG_CHECKING([whether GLib is linked in])
3628 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3629         [[#include <glib.h>
3630         ]],
3631         [[g_print ("Hello world");]])],
3632      [links_glib=yes],
3633      [links_glib=no])
3634 AC_MSG_RESULT([$links_glib])
3635 if test "${links_glib}" = "yes"; then
3636   AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3637   if test "$HAVE_NS" = no;then
3638     XGSELOBJ=xgselect.o
3639   fi
3640 fi
3641 AC_SUBST(XGSELOBJ)
3642
3643 dnl Adapted from Haible's version.
3644 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3645   [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3646     [[char* cs = nl_langinfo(CODESET);]])],
3647     emacs_cv_langinfo_codeset=yes,
3648     emacs_cv_langinfo_codeset=no)
3649   ])
3650 if test $emacs_cv_langinfo_codeset = yes; then
3651   AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3652     [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3653 fi
3654
3655 AC_TYPE_MBSTATE_T
3656
3657 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3658   [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3659                   emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3660 if test "$emacs_cv_c_restrict_arr" = yes; then
3661   AC_DEFINE(__restrict_arr, __restrict,
3662     [Define to compiler's equivalent of C99 restrict keyword in array
3663      declarations.  Define as empty for no equivalent.])
3664 fi
3665
3666 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3667 dnl how the tty code is related to POSIX and/or other versions of termios.
3668 dnl The following looks like a useful start.
3669 dnl
3670 dnl AC_SYS_POSIX_TERMIOS
3671 dnl if test $ac_cv_sys_posix_termios = yes; then
3672 dnl    AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3673 dnl                                and macros for terminal control.])
3674 dnl    AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3675 dnl fi
3676
3677 dnl Turned on June 1996 supposing nobody will mind it.
3678 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3679 if test "${opsys}" != "mingw32"; then
3680    AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3681      in the full name stands for the login id.])
3682 fi
3683
3684 dnl Every platform that uses configure supports this.
3685 dnl There is a create-lockfiles option you can
3686 dnl customize if you do not want the lock files to be written.
3687 dnl So it is not clear that this #define still needs to exist.
3688 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3689   so that Emacs can tell instantly when you try to modify a file that
3690   someone else has modified in his/her Emacs.])
3691
3692 dnl Everybody supports this, except MS.
3693 dnl Seems like the kind of thing we should be testing for, though.
3694 ## Note: PTYs are broken on darwin <6.  Use at your own risk.
3695 if test "${opsys}" != "mingw32"; then
3696   AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3697 fi
3698
3699 dnl Everybody supports this, except MS-DOS.
3700 dnl Seems like the kind of thing we should be testing for, though.
3701 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3702 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3703   4.2-compatible sockets.])
3704
3705 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3706
3707 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3708   a null file, or a data sink.])
3709 if test "${opsys}" = "mingw32"; then
3710   AC_DEFINE(NULL_DEVICE, ["NUL:"])
3711 else
3712   AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3713 fi
3714
3715 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3716 if test "${opsys}" = "mingw32"; then
3717   AC_DEFINE(SEPCHAR, [';'])
3718 else
3719   AC_DEFINE(SEPCHAR, [':'])
3720 fi
3721
3722 dnl Everybody supports this, except MS-DOS.
3723 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3724
3725 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3726
3727
3728 AC_DEFINE(DIRECTORY_SEP, ['/'],
3729   [Character that separates directories in a file name.])
3730
3731 if test "${opsys}" = "mingw32"; then
3732   AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3733     [Returns true if character is a device separator.])
3734
3735   AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3736     [Returns true if character is a directory separator.])
3737
3738   AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3739     [Returns true if character is any form of separator.])
3740 else
3741   AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3742     [Returns true if character is a device separator.])
3743
3744   AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3745     [Returns true if character is a directory separator.])
3746
3747   AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3748     [Returns true if character is any form of separator.])
3749 fi
3750
3751 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3752
3753 case $opsys in
3754   aix4-2)
3755     dnl Unfortunately without libXmu we cannot support EditRes.
3756     if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3757       AC_DEFINE(NO_EDITRES, 1)
3758     fi
3759     ;;
3760
3761   hpux*)
3762     dnl Assar Westerlund <assar@sics.se> says this is necessary for
3763     dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3764     AC_DEFINE(NO_EDITRES, 1)
3765     ;;
3766 esac
3767
3768
3769 case $opsys in
3770   irix6-5 | sol2* | unixware )
3771     dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3772     dnl instead, there's a system variable _sys_nsig.  Unfortunately, we
3773     dnl need the constant to dimension an array.  So wire in the appropriate
3774     dnl value here.
3775     AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3776     ;;
3777 esac
3778
3779 emacs_broken_SIGIO=no
3780
3781 case $opsys in
3782   dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3783   dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3784   hpux* | irix6-5 | openbsd | sol2* | unixware | gnu-kfreebsd )
3785     emacs_broken_SIGIO=yes
3786     ;;
3787
3788   aix4-2)
3789     dnl On AIX Emacs uses the gmalloc.c malloc implementation.  But given
3790     dnl the way this system works, libc functions that return malloced
3791     dnl memory use the libc malloc implementation. Calling xfree or
3792     dnl xrealloc on the results of such functions results in a crash.
3793     dnl
3794     dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3795     dnl but that does not currently work on this system.
3796     dnl
3797     dnl It is possible to completely override the malloc implementation on
3798     dnl AIX, but that involves putting the malloc functions in a shared
3799     dnl library and setting the MALLOCTYPE environment variable to point to
3800     dnl that shared library.
3801     dnl
3802     dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3803     dnl to avoid a crash just use the Emacs implementation for that function.
3804     dnl
3805     dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3806     dnl of this file, so that we do not check for get_current_dir_name
3807     dnl on AIX.  But that might be fragile if something else ends
3808     dnl up testing for get_current_dir_name as a dependency.
3809     AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3810       get_current_dir_name should not be used.])
3811     ;;
3812
3813   freebsd)
3814     dnl Circumvent a bug in FreeBSD.  In the following sequence of
3815     dnl writes/reads on a PTY, read(2) returns bogus data:
3816     dnl
3817     dnl write(2)  1022 bytes
3818     dnl write(2)   954 bytes, get EAGAIN
3819     dnl read(2)   1024 bytes in process_read_output
3820     dnl read(2)     11 bytes in process_read_output
3821     dnl
3822     dnl That is, read(2) returns more bytes than have ever been written
3823     dnl successfully.  The 1033 bytes read are the 1022 bytes written
3824     dnl successfully after processing (for example with CRs added if the
3825     dnl terminal is set up that way which it is here).  The same bytes will
3826     dnl be seen again in a later read(2), without the CRs.
3827     AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3828       work around an issue when reading from a PTY.])
3829     ;;
3830 esac
3831
3832 case $opsys in
3833   gnu-* | sol2-10 )
3834     dnl FIXME Can't we test if this exists (eg /proc/$$)?
3835     AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3836   ;;
3837 esac
3838
3839 case $opsys in
3840   darwin | dragonfly | freebsd | netbsd | openbsd )
3841     AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3842       close a pty to make it a controlling terminal (it is already a
3843       controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3844   ;;
3845 esac
3846
3847 dnl FIXME Surely we can test for this rather than hard-code it.
3848 case $opsys in
3849   netbsd | openbsd) sound_device="/dev/audio" ;;
3850   *) sound_device="/dev/dsp" ;;
3851 esac
3852
3853 dnl Used in sound.c
3854 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3855   [Name of the default sound device.])
3856
3857
3858 dnl Emacs can read input using SIGIO and buffering characters itself,
3859 dnl or using CBREAK mode and making C-g cause SIGINT.
3860 dnl The choice is controlled by the variable interrupt_input.
3861 dnl
3862 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3863 dnl
3864 dnl Emacs uses the presence of the USABLE_SIGIO macro
3865 dnl to indicate whether or not signal-driven I/O is possible.  It uses
3866 dnl INTERRUPT_INPUT to decide whether to use it by default.
3867 dnl
3868 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3869 dnl CBREAK mode has two disadvantages
3870 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3871 dnl I hear that in system V this problem does not exist.
3872 dnl 2) Control-G causes output to be discarded.
3873 dnl I do not know whether this can be fixed in system V.
3874 dnl
3875 dnl Another method of doing input is planned but not implemented.
3876 dnl It would have Emacs fork off a separate process
3877 dnl to read the input and send it to the true Emacs process
3878 dnl through a pipe.
3879 case $opsys in
3880   darwin | gnu-linux | gnu-kfreebsd )
3881     AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3882   ;;
3883 esac
3884
3885
3886 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3887 dnl as `NO', we must define NARROWPROTO manually.  Such a define is
3888 dnl generated in the Makefile generated by `xmkmf'.  If we don't define
3889 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3890 dnl taking float or double parameters.
3891 case $opsys in
3892   cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3893     AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3894       file defines `NeedWidePrototypes' as `NO'.])
3895   ;;
3896 esac
3897
3898
3899 dnl Used in process.c, this must be a loop, even if it only runs once.
3900 dnl (Except on SGI; see below.  Take that, clarity and consistency!)
3901 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3902 dnl Only used if !PTY_ITERATION.  Iterate from FIRST_PTY_LETTER to z,
3903 dnl trying suffixes 0-16.
3904 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3905   first PTY, if PTYs are supported.])
3906 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3907 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3908   end of a PTY, if non-standard.])
3909 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3910   end of a PTY, if non-standard.])
3911
3912 case $opsys in
3913   aix4-2 )
3914     AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3915     dnl You allocate a pty by opening /dev/ptc to get the master side.
3916     dnl To get the name of the slave side, you just ttyname() the master side.
3917     AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3918     AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3919     ;;
3920
3921   cygwin )
3922     AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3923     dnl multi-line AC_DEFINEs are hard. :(
3924     AC_DEFINE(PTY_OPEN, [ do { int dummy; sigset_t blocked, procmask; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, &procmask); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; pthread_sigmask (SIG_SETMASK, &procmask, 0); if (fd >= 0) emacs_close (dummy); } while (0)])
3925     AC_DEFINE(PTY_NAME_SPRINTF, [])
3926     AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3927     ;;
3928
3929   dnl FIXME?  Maybe use same as freebsd - see bug#12040.
3930   darwin )
3931     AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3932     dnl Not used, because PTY_ITERATION is defined.
3933     AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3934     dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3935     dnl But we don't have to block SIGCHLD because it is blocked in the
3936     dnl implementation of grantpt.
3937     AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3938     AC_DEFINE(PTY_NAME_SPRINTF, [])
3939     AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3940     ;;
3941
3942   gnu | openbsd )
3943     AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3944     ;;
3945
3946   gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
3947     dnl if HAVE_GRANTPT
3948     if test "x$ac_cv_func_grantpt" = xyes; then
3949       AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3950       AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3951       dnl Note that grantpt and unlockpt may fork.  We must block SIGCHLD
3952       dnl to prevent sigchld_handler from intercepting the child's death.
3953       AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3954       dnl if HAVE_POSIX_OPENPT
3955       if test "x$ac_cv_func_posix_openpt" = xyes; then
3956         AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY)])
3957         AC_DEFINE(PTY_NAME_SPRINTF, [])
3958       dnl if HAVE_GETPT
3959       elif test "x$ac_cv_func_getpt" = xyes; then
3960         AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3961         AC_DEFINE(PTY_NAME_SPRINTF, [])
3962       else
3963         AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3964       fi
3965     else
3966       AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3967     fi
3968     ;;
3969
3970   hpux*)
3971     AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3972     AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3973     AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3974     ;;
3975
3976   irix6-5 )
3977     dnl It looks like this cannot be right, because it is not a loop.
3978     dnl However, process.c actually does this:
3979     dnl # ifndef __sgi
3980     dnl   continue;
3981     dnl # else
3982     dnl   return -1;
3983     dnl # endif
3984     dnl which presumably makes it OK, since irix == sgi (?).
3985     dnl FIXME it seems like this special treatment is unnecessary?
3986     dnl Why can't irix use a single-trip loop like eg cygwin?
3987     AC_DEFINE(PTY_ITERATION, [])
3988     dnl Not used, because PTY_ITERATION is defined.
3989     AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3990     AC_DEFINE(PTY_OPEN, [ { struct sigaction ocstat, cstat; struct stat stb; char * name; sigemptyset(&cstat.sa_mask); cstat.sa_handler = SIG_DFL; cstat.sa_flags = 0; sigaction(SIGCHLD, &cstat, &ocstat); name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); sigaction(SIGCHLD, &ocstat, (struct sigaction *)0); if (name == 0) return -1; if (fd < 0) return -1; if (fstat (fd, &stb) < 0) return -1; strcpy (pty_name, name); }])
3991     dnl No need to get the pty name at all.
3992     AC_DEFINE(PTY_NAME_SPRINTF, [])
3993     dnl No need to use sprintf to get the tty name--we get that from _getpty.
3994     AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3995     ;;
3996
3997   sol2* )
3998     dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3999     dnl from intercepting that death.  If any child but grantpt's should die
4000     dnl within, it should be caught after sigrelse(2).
4001     AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
4002     ;;
4003
4004   unixware )
4005     dnl Comments are as per sol2*.
4006     AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) fatal("could not grant slave pty"); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
4007     ;;
4008 esac
4009
4010
4011 case $opsys in
4012   sol2* | unixware )
4013     dnl This change means that we don't loop through allocate_pty too
4014     dnl many times in the (rare) event of a failure.
4015     AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4016     AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4017     dnl Push various streams modules onto a PTY channel.  Used in process.c.
4018     AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (xforkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (xforkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
4019     ;;
4020 esac
4021
4022
4023 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4024 "typing" a signal character on the pty.])
4025
4026 case $opsys in
4027   dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4028   dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4029   aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4030     AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4031     ;;
4032
4033   dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4034   dnl FIXME Does gnu-kfreebsd have linux/version.h?  It seems unlikely...
4035   gnu-linux | gnu-kfreebsd )
4036
4037     AC_MSG_CHECKING([for signals via characters])
4038     AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4039 #include <linux/version.h>
4040 #if LINUX_VERSION_CODE < 0x20400
4041 # error "Linux version too old"
4042 #endif
4043       ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4044
4045     AC_MSG_RESULT([$emacs_signals_via_chars])
4046     test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4047     ;;
4048 esac
4049
4050
4051 dnl Used in lisp.h, emacs.c, vm-limit.c
4052 dnl NEWS.18 describes this as "a number which contains
4053 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4054 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4055 stored in a Lisp_Object.])
4056 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4057
4058 case $opsys in
4059   aix*)
4060     dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4061     AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4062     ;;
4063   hpux*)
4064     dnl The data segment on this machine always starts at address 0x40000000.
4065     AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4066     ;;
4067   irix6-5)
4068     AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4069     ;;
4070 esac
4071
4072
4073 AH_TEMPLATE(TAB3, [Undocumented.])
4074
4075 case $opsys in
4076   darwin) AC_DEFINE(TAB3, OXTABS) ;;
4077
4078   gnu | dragonfly | freebsd | netbsd | openbsd )
4079     AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4080     AC_DEFINE(TAB3, OXTABS)
4081     ;;
4082
4083   gnu-linux | gnu-kfreebsd )
4084     AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4085 #ifndef __ia64__
4086 # error "not ia64"
4087 #endif
4088       ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4089         [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (0)],
4090         [Mark a secondary stack, like the register stack on the ia64.]), [])
4091     ;;
4092
4093   hpux*)
4094     AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4095       run_time_remap; for HPUX.])
4096     ;;
4097 esac
4098
4099
4100 dnl This won't be used automatically yet.  We also need to know, at least,
4101 dnl that the stack is continuous.
4102 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4103   registers relevant for conservative garbage collection in the jmp_buf.])
4104
4105
4106 case $opsys in
4107   dnl Not all the architectures are tested, but there are Debian packages
4108   dnl for SCM and/or Guile on them, so the technique must work.  See also
4109   dnl comments in alloc.c concerning setjmp and gcc.
4110   dnl Fixme: it's probably safe to just use the GCC conditional below.
4111   gnu-linux | gnu-kfreebsd )
4112     AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4113 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4114   || defined __alpha__ || defined __mips__ || defined __s390__ \
4115   || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4116   || defined __ia64__ || defined __sh__
4117 /* ok */
4118 #else
4119 # error "setjmp not known to work on this arch"
4120 #endif
4121     ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4122     ;;
4123 esac
4124
4125
4126 if test x$GCC = xyes; then
4127    dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4128    AC_DEFINE(GC_SETJMP_WORKS, 1)
4129 else
4130   case $opsys in
4131     dnl irix: Tested on Irix 6.5.  SCM worked on earlier versions.
4132     dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4133       AC_DEFINE(GC_SETJMP_WORKS, 1)
4134       ;;
4135   esac
4136 fi                              dnl GCC?
4137
4138 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4139 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4140   [AC_LINK_IFELSE(
4141      [AC_LANG_PROGRAM(
4142        [[#include <setjmp.h>
4143          #ifdef __MINGW32__
4144          # define _longjmp longjmp
4145          #endif
4146        ]],
4147        [[jmp_buf j;
4148          if (! _setjmp (j))
4149            _longjmp (j, 1);]])],
4150      [emacs_cv_func__setjmp=yes],
4151      [emacs_cv_func__setjmp=no])])
4152 if test $emacs_cv_func__setjmp = yes; then
4153   AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4154 else
4155   AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4156     [AC_LINK_IFELSE(
4157        [AC_LANG_PROGRAM(
4158          [[#include <setjmp.h>
4159          ]],
4160          [[sigjmp_buf j;
4161            if (! sigsetjmp (j, 1))
4162              siglongjmp (j, 1);]])],
4163        [emacs_cv_func_sigsetjmp=yes],
4164        [emacs_cv_func_sigsetjmp=no])])
4165   if test $emacs_cv_func_sigsetjmp = yes; then
4166     AC_DEFINE([HAVE_SIGSETJMP], 1,
4167       [Define to 1 if sigsetjmp and siglongjmp work.
4168        The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4169   fi
4170 fi
4171
4172 case $opsys in
4173   sol2* | unixware )
4174     dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4175     dnl subprocesses the usual way.  But TIOCSIGNAL does work for PTYs,
4176     dnl and this is all we need.
4177     AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4178     ;;
4179 esac
4180
4181
4182 case $opsys in
4183   hpux* | sol2* )
4184     dnl Used in xfaces.c.
4185     AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4186       some systems, where it requires time.h.])
4187     ;;
4188 esac
4189
4190
4191 dnl Define symbols to identify the version of Unix this is.
4192 dnl Define all the symbols that apply correctly.
4193 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4194 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4195 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4196 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4197
4198 case $opsys in
4199   aix4-2)
4200     AC_DEFINE(USG, [])
4201     dnl This symbol should be defined on AIX Version 3  ???????
4202     AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4203 #ifndef _AIX
4204 # error "_AIX not defined"
4205 #endif
4206     ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4207     ;;
4208
4209   cygwin)
4210     AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4211     ;;
4212
4213   darwin)
4214     dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4215     dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4216     dnl distinguish OS X from pure Darwin.
4217     AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4218     ;;
4219
4220   gnu-linux | gnu-kfreebsd )
4221     AC_DEFINE(USG, [])
4222     AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4223     ;;
4224
4225   hpux*)
4226     AC_DEFINE(USG, [])
4227     AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4228     ;;
4229
4230   irix6-5)
4231     AC_DEFINE(USG, [])
4232     AC_DEFINE(USG5_4, [])
4233     AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4234     ;;
4235
4236   mingw32)
4237     AC_DEFINE(DOS_NT, [])
4238     AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4239     if test "x$ac_enable_checking" != "x" ; then
4240       AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4241     fi
4242     ;;
4243
4244   sol2*)
4245     AC_DEFINE(USG, [])
4246     AC_DEFINE(USG5_4, [])
4247     AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4248     ;;
4249
4250   unixware)
4251     AC_DEFINE(USG, [])
4252     AC_DEFINE(USG5_4, [])
4253     ;;
4254 esac
4255
4256 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4257   [case $opsys in
4258      aix4-2)
4259        dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4260        emacs_cv_usable_FIONREAD=no
4261        ;;
4262
4263      mingw32)
4264        emacs_cv_usable_FIONREAD=yes
4265        ;;
4266
4267      *)
4268        AC_COMPILE_IFELSE(
4269          [AC_LANG_PROGRAM([[#include <sys/types.h>
4270                             #include <sys/ioctl.h>
4271                             #ifdef USG5_4
4272                             # include <sys/filio.h>
4273                             #endif
4274                           ]],
4275                           [[int foo = ioctl (0, FIONREAD, &foo);]])],
4276          [emacs_cv_usable_FIONREAD=yes],
4277          [emacs_cv_usable_FIONREAD=no])
4278        ;;
4279    esac])
4280 if test $emacs_cv_usable_FIONREAD = yes; then
4281   AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4282
4283   if test $emacs_broken_SIGIO = no; then
4284     AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4285       [AC_COMPILE_IFELSE(
4286          [AC_LANG_PROGRAM([[#include <fcntl.h>
4287                             #include <signal.h>
4288                           ]],
4289                           [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4290          [emacs_cv_usable_SIGIO=yes],
4291          [emacs_cv_usable_SIGIO=no])],
4292       [emacs_cv_usable_SIGIO=yes],
4293       [emacs_cv_usable_SIGIO=no])
4294     if test $emacs_cv_usable_SIGIO = yes; then
4295       AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4296     fi
4297   fi
4298 fi
4299
4300
4301 case $opsys in
4302   dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
4303   dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
4304   dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
4305   dnl returns ENOSYS.  A workaround is to set G_SLICE=always-malloc. */
4306   cygwin)
4307     AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4308       G_SLICE environment variable to "always-malloc" at startup, if
4309       using GTK.])
4310     ;;
4311
4312   hpux11)
4313     dnl It works to open the pty's tty in the parent (Emacs), then
4314     dnl close and reopen it in the child.
4315     AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4316       works to open a pty's tty in the parent process, then close and
4317       reopen it in the child.])
4318     ;;
4319
4320   irix6-5)
4321     AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4322       use VSUSP instead of VSWTCH.])
4323     ;;
4324
4325   sol2-10)
4326     AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4327       on Solaris.])
4328     ;;
4329 esac
4330
4331 # Set up the CFLAGS for real compilation, so we can substitute it.
4332 CFLAGS="$REAL_CFLAGS"
4333 CPPFLAGS="$REAL_CPPFLAGS"
4334
4335 ## Hack to detect a buggy GCC version.
4336 if test "x$GCC" = xyes \
4337    && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4338    && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4339    && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4340    AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4341 fi
4342
4343 version=$PACKAGE_VERSION
4344
4345 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4346 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4347   [Short copyright string for this version of Emacs.])
4348 AC_SUBST(copyright)
4349
4350 ### Specify what sort of things we'll be editing into Makefile and config.h.
4351 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4352 AC_SUBST(version)
4353 AC_SUBST(configuration)
4354 ## Unused?
4355 AC_SUBST(canonical)
4356 AC_SUBST(srcdir)
4357 AC_SUBST(prefix)
4358 AC_SUBST(exec_prefix)
4359 AC_SUBST(bindir)
4360 AC_SUBST(datadir)
4361 AC_SUBST(sharedstatedir)
4362 AC_SUBST(libexecdir)
4363 AC_SUBST(mandir)
4364 AC_SUBST(infodir)
4365 AC_SUBST(lispdir)
4366 AC_SUBST(leimdir)
4367 AC_SUBST(standardlisppath)
4368 AC_SUBST(locallisppath)
4369 AC_SUBST(lisppath)
4370 AC_SUBST(x_default_search_path)
4371 AC_SUBST(etcdir)
4372 AC_SUBST(archlibdir)
4373 AC_SUBST(docdir)
4374 AC_SUBST(bitmapdir)
4375 AC_SUBST(gamedir)
4376 AC_SUBST(gameuser)
4377 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4378 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4379 ## end of LIBX_BASE, but nothing ever set it.
4380 AC_SUBST(LD_SWITCH_X_SITE)
4381 AC_SUBST(C_SWITCH_X_SITE)
4382 AC_SUBST(GNUSTEP_CFLAGS)
4383 AC_SUBST(CFLAGS)
4384 ## Used in lwlib/Makefile.in.
4385 AC_SUBST(X_TOOLKIT_TYPE)
4386 AC_SUBST(ns_appdir)
4387 AC_SUBST(ns_appbindir)
4388 AC_SUBST(ns_appresdir)
4389 AC_SUBST(ns_appsrc)
4390 AC_SUBST(GNU_OBJC_CFLAGS)
4391 AC_SUBST(OTHER_FILES)
4392
4393 if test -n "${term_header}"; then
4394     AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4395         [Define to the header for the built-in window system.])
4396 fi
4397
4398 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION,  "${canonical}",
4399                    [Define to the canonical Emacs configuration name.])
4400 dnl Replace any embedded " characters (bug#13274).
4401 emacs_config_options=`echo "$emacs_config_options " | sed -e 's/--no-create //' -e 's/--no-recursion //' -e 's/ *$//' -e "s/\"/'/g"`
4402 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4403                    [Define to the options passed to configure.])
4404 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4405   define this to include extra configuration information.])
4406
4407 case $opsys in
4408   mingw32)
4409     AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4410     ;;
4411 esac
4412
4413 XMENU_OBJ=
4414 XOBJ=
4415 FONT_OBJ=
4416 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4417   AC_DEFINE(HAVE_X_WINDOWS, 1,
4418             [Define to 1 if you want to use the X window system.])
4419   XMENU_OBJ=xmenu.o
4420   XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4421   FONT_OBJ=xfont.o
4422   if test "$HAVE_XFT" = "yes"; then
4423     FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4424   elif test "$HAVE_FREETYPE" = "yes"; then
4425     FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4426   fi
4427   AC_SUBST(FONT_OBJ)
4428 fi
4429 AC_SUBST(XMENU_OBJ)
4430 AC_SUBST(XOBJ)
4431 AC_SUBST(FONT_OBJ)
4432
4433 WIDGET_OBJ=
4434 MOTIF_LIBW=
4435 if test "${USE_X_TOOLKIT}" != "none" ; then
4436   WIDGET_OBJ=widget.o
4437   AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4438   if test "${USE_X_TOOLKIT}" = "LUCID"; then
4439     AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4440   elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4441     AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4442     MOTIF_LIBW=-lXm
4443     case "$opsys" in
4444       gnu-linux)
4445         ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4446         MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4447         ;;
4448
4449       unixware)
4450         ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4451         ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4452         MOTIF_LIBW="MOTIF_LIBW -lXimp"
4453         ;;
4454
4455       aix4-2)
4456         ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4457         MOTIF_LIBW="$MOTIF_LIBW -li18n"
4458         ;;
4459     esac
4460     MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4461   fi
4462 fi
4463 AC_SUBST(WIDGET_OBJ)
4464
4465 TOOLKIT_LIBW=
4466 case "$USE_X_TOOLKIT" in
4467   MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4468   LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4469   none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4470 esac
4471 AC_SUBST(TOOLKIT_LIBW)
4472
4473 if test "${opsys}" != "mingw32"; then
4474   if test "$USE_X_TOOLKIT" = "none"; then
4475     LIBXT_OTHER="\$(LIBXSM)"
4476     OLDXMENU_TARGET="really-oldXMenu"
4477   else
4478     LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4479     OLDXMENU_TARGET="really-lwlib"
4480   fi
4481 fi
4482 AC_SUBST(LIBXT_OTHER)
4483
4484 ## The X Menu stuff is present in the X10 distribution, but missing
4485 ## from X11.  If we have X10, just use the installed library;
4486 ## otherwise, use our own copy.
4487 if test "${HAVE_X11}" = "yes" ; then
4488   AC_DEFINE(HAVE_X11, 1,
4489             [Define to 1 if you want to use version 11 of X windows.
4490              Otherwise, Emacs expects to use version 10.])
4491
4492   if test "$USE_X_TOOLKIT" = "none"; then
4493     OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4494   else
4495     OLDXMENU="\${lwlibdir}/liblw.a"
4496   fi
4497   LIBXMENU="\$(OLDXMENU)"
4498   LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4499   OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4500 else
4501   ## For a syntactically valid Makefile; not actually used for anything.
4502   ## See comments in src/Makefile.in.
4503   OLDXMENU=nothing
4504   ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4505   if test "${HAVE_X_WINDOWS}" = "yes"; then
4506     LIBXMENU="-lXMenu"
4507   else
4508     LIBXMENU=
4509   fi
4510   LIBX_OTHER=
4511   OLDXMENU_DEPS=
4512 fi
4513
4514 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4515   OLDXMENU_TARGET=
4516   OLDXMENU=nothing
4517   LIBXMENU=
4518   OLDXMENU_DEPS=
4519 fi
4520
4521 AC_SUBST(OLDXMENU_TARGET)
4522 AC_SUBST(OLDXMENU)
4523 AC_SUBST(LIBXMENU)
4524 AC_SUBST(LIBX_OTHER)
4525 AC_SUBST(OLDXMENU_DEPS)
4526
4527 if test "${HAVE_MENUS}" = "yes" ; then
4528   AC_DEFINE(HAVE_MENUS, 1,
4529             [Define to 1 if you have mouse menus.
4530              (This is automatic if you use X, but the option to specify it remains.)
4531              It is also defined with other window systems that support xmenu.c.])
4532 fi
4533
4534 if test "${GNU_MALLOC}" = "yes" ; then
4535   AC_DEFINE(GNU_MALLOC, 1,
4536             [Define to 1 if you want to use the GNU memory allocator.])
4537 fi
4538
4539 RALLOC_OBJ=
4540 if test "${REL_ALLOC}" = "yes" ; then
4541   AC_DEFINE(REL_ALLOC, 1,
4542             [Define REL_ALLOC if you want to use the relocating allocator for
4543              buffer space.])
4544
4545   test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4546 fi
4547 AC_SUBST(RALLOC_OBJ)
4548
4549 if test "$opsys" = "cygwin"; then
4550   CYGWIN_OBJ="sheap.o cygw32.o"
4551   ## Cygwin differs because of its unexec().
4552   PRE_ALLOC_OBJ=
4553   POST_ALLOC_OBJ=lastfile.o
4554 elif test "$opsys" = "mingw32"; then
4555   CYGWIN_OBJ=
4556   PRE_ALLOC_OBJ=
4557   POST_ALLOC_OBJ=lastfile.o
4558 else
4559   CYGWIN_OBJ=
4560   PRE_ALLOC_OBJ=lastfile.o
4561   POST_ALLOC_OBJ=
4562 fi
4563 AC_SUBST(CYGWIN_OBJ)
4564 AC_SUBST(PRE_ALLOC_OBJ)
4565 AC_SUBST(POST_ALLOC_OBJ)
4566
4567 # Configure gnulib.  Although this does not affect CFLAGS or LIBS permanently.
4568 # it temporarily reverts them to their pre-pkg-config values,
4569 # because gnulib needs to work with both src (which uses the
4570 # pkg-config stuff) and lib-src (which does not).  For example, gnulib
4571 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4572 # and it therefore needs to run in an environment where LIBS does not
4573 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4574 # for some package unrelated to lib-src.
4575 SAVE_CFLAGS=$CFLAGS
4576 SAVE_LIBS=$LIBS
4577 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4578 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4579 gl_ASSERT_NO_GNULIB_POSIXCHECK
4580 gl_ASSERT_NO_GNULIB_TESTS
4581 gl_INIT
4582 CFLAGS=$SAVE_CFLAGS
4583 LIBS=$SAVE_LIBS
4584
4585 if test "${opsys}" = "mingw32"; then
4586   CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4587   # Remove unneeded switches from the value of CC that goes to Makefiles
4588   CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4589 fi
4590
4591 case "$opsys" in
4592   aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4593
4594   darwin)
4595    ## The -headerpad option tells ld (see man page) to leave room at the
4596    ## end of the header for adding load commands.  Needed for dumping.
4597    ## 0x690 is the total size of 30 segment load commands (at 56
4598    ## each); under Cocoa 31 commands are required.
4599    if test "$HAVE_NS" = "yes"; then
4600      libs_nsgui="-framework AppKit"
4601      if test "$NS_IMPL_COCOA" = "yes"; then
4602         libs_nsgui="$libs_nsgui -framework IOKit"
4603      fi
4604      headerpad_extra=6C8
4605    else
4606      libs_nsgui=
4607      headerpad_extra=690
4608    fi
4609    LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4610
4611    ## This is here because src/Makefile.in did some extra fiddling around
4612    ## with LD_SWITCH_SYSTEM.  It seems cleaner to put this in
4613    ## LD_SWITCH_SYSTEM_TEMACS instead,
4614    test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4615      LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4616    ;;
4617
4618   ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4619   ## find X at run-time.
4620   ## When handled by cpp, this was in LD_SWITCH_SYSTEM.  However, at the
4621   ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4622   ## had not yet been defined and was expanded to null.  Hence LD_SWITCH_SYSTEM
4623   ## had different values in configure (in ac_link) and src/Makefile.in.
4624   ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4625   gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4626
4627   mingw32)
4628    ## MinGW64 does not prepend an underscore to symbols, so we must
4629    ## pass a different -entry switch to linker.  FIXME: It is better
4630    ## to make the entry points the same by changing unexw32.c.
4631    case "$canonical" in
4632      x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4633      *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4634    esac
4635    ;;
4636
4637   openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4638
4639   *) LD_SWITCH_SYSTEM_TEMACS= ;;
4640 esac
4641
4642 if test x$ac_enable_profiling != x ; then
4643   case $opsys in
4644     *freebsd | gnu-linux) ;;
4645     *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4646   esac
4647 fi
4648
4649 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4650
4651 ## MinGW-specific post-link processing of temacs.
4652 TEMACS_POST_LINK=":"
4653 ADDSECTION=
4654 EMACS_HEAPSIZE=
4655 if test "${opsys}" = "mingw32"; then
4656   TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4657   ADDSECTION="../nt/addsection\$(EXEEXT)"
4658   ## Preload heap size of temacs.exe in MB.
4659   case "$canonical" in
4660     x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4661     *) EMACS_HEAPSIZE=27 ;;
4662   esac
4663 fi
4664
4665 AC_SUBST(ADDSECTION)
4666 AC_SUBST(TEMACS_POST_LINK)
4667 AC_SUBST(EMACS_HEAPSIZE)
4668
4669 ## Common for all window systems
4670 if test "$window_system" != "none"; then
4671   AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4672   WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4673 fi
4674
4675 AC_SUBST(WINDOW_SYSTEM_OBJ)
4676
4677 AH_TOP([/* GNU Emacs site configuration template file.
4678
4679 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4680   Free Software Foundation, Inc.
4681
4682 This file is part of GNU Emacs.
4683
4684 GNU Emacs is free software: you can redistribute it and/or modify
4685 it under the terms of the GNU General Public License as published by
4686 the Free Software Foundation, either version 3 of the License, or
4687 (at your option) any later version.
4688
4689 GNU Emacs is distributed in the hope that it will be useful,
4690 but WITHOUT ANY WARRANTY; without even the implied warranty of
4691 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
4692 GNU General Public License for more details.
4693
4694 You should have received a copy of the GNU General Public License
4695 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
4696
4697
4698 /* No code in Emacs #includes config.h twice, but some bits of code
4699    intended to work with other packages as well (like gmalloc.c)
4700    think they can include it as many times as they like.  */
4701 #ifndef EMACS_CONFIG_H
4702 #define EMACS_CONFIG_H
4703 ])dnl
4704
4705 AH_BOTTOM([#include <conf_post.h>
4706
4707 #endif /* EMACS_CONFIG_H */
4708
4709 /*
4710 Local Variables:
4711 mode: c
4712 End:
4713 */
4714 ])dnl
4715
4716 #### Report on what we decided to do.
4717 #### Report GTK as a toolkit, even if it doesn't use Xt.
4718 #### It makes printing result more understandable as using GTK sets
4719 #### toolkit_scroll_bars to yes by default.
4720 if test "${HAVE_GTK}" = "yes"; then
4721   USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4722 fi
4723
4724 if test $USE_ACL -ne 0; then
4725   acl_summary="yes $LIB_ACL"
4726 else
4727   acl_summary=no
4728 fi
4729
4730 echo "
4731 Configured for \`${canonical}'.
4732
4733   Where should the build process find the source code?    ${srcdir}
4734   What compiler should emacs be built with?               ${CC} ${CFLAGS}
4735   Should Emacs use the GNU version of malloc?             ${GNU_MALLOC}${GNU_MALLOC_reason}
4736   Should Emacs use a relocating allocator for buffers?    ${REL_ALLOC}
4737   Should Emacs use mmap(2) for buffer allocation?         $use_mmap_for_buffers
4738   What window system should Emacs use?                    ${window_system}
4739   What toolkit should Emacs use?                          ${USE_X_TOOLKIT}"
4740
4741 if test -n "${x_includes}"; then
4742 echo "  Where do we find X Windows header files?                ${x_includes}"
4743 else
4744 echo "  Where do we find X Windows header files?                Standard dirs"
4745 fi
4746 if test -n "${x_libraries}"; then
4747 echo "  Where do we find X Windows libraries?                   ${x_libraries}"
4748 else
4749 echo "  Where do we find X Windows libraries?                   Standard dirs"
4750 fi
4751
4752 echo "  Does Emacs use -lXaw3d?                                 ${HAVE_XAW3D}"
4753 echo "  Does Emacs use -lXpm?                                   ${HAVE_XPM}"
4754 echo "  Does Emacs use -ljpeg?                                  ${HAVE_JPEG}"
4755 echo "  Does Emacs use -ltiff?                                  ${HAVE_TIFF}"
4756 echo "  Does Emacs use a gif library?                           ${HAVE_GIF} $LIBGIF"
4757 echo "  Does Emacs use -lpng?                                   ${HAVE_PNG}"
4758 echo "  Does Emacs use -lrsvg-2?                                ${HAVE_RSVG}"
4759 echo "  Does Emacs use imagemagick?                             ${HAVE_IMAGEMAGICK}"
4760
4761 echo "  Does Emacs use -lgpm?                                   ${HAVE_GPM}"
4762 echo "  Does Emacs use -ldbus?                                  ${HAVE_DBUS}"
4763 echo "  Does Emacs use -lgconf?                                 ${HAVE_GCONF}"
4764 echo "  Does Emacs use GSettings?                               ${HAVE_GSETTINGS}"
4765 echo "  Does Emacs use a file notification library?             ${NOTIFY_SUMMARY}"
4766 echo "  Does Emacs use access control lists?                    ${acl_summary}"
4767 echo "  Does Emacs use -lselinux?                               ${HAVE_LIBSELINUX}"
4768 echo "  Does Emacs use -lgnutls?                                ${HAVE_GNUTLS}"
4769 echo "  Does Emacs use -lxml2?                                  ${HAVE_LIBXML2}"
4770
4771 echo "  Does Emacs use -lfreetype?                              ${HAVE_FREETYPE}"
4772 echo "  Does Emacs use -lm17n-flt?                              ${HAVE_M17N_FLT}"
4773 echo "  Does Emacs use -lotf?                                   ${HAVE_LIBOTF}"
4774 echo "  Does Emacs use -lxft?                                   ${HAVE_XFT}"
4775
4776 echo "  Does Emacs use toolkit scroll bars?                     ${USE_TOOLKIT_SCROLL_BARS}"
4777 echo
4778
4779 if test -n "${EMACSDATA}"; then
4780    echo "  Environment variable EMACSDATA set to:                  $EMACSDATA"
4781 fi
4782 if test -n "${EMACSDOC}"; then
4783    echo "  Environment variable EMACSDOC set to:                   $EMACSDOC"
4784 fi
4785
4786 echo
4787
4788 if test "$HAVE_NS" = "yes"; then
4789    echo
4790    echo "You must run \"${MAKE-make} install\" in order to test the built application.
4791 The installed application will go to nextstep/Emacs.app and can be
4792 run or moved from there."
4793    if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4794       echo "The application will be fully self-contained."
4795     else
4796       echo "The lisp resources for the application will be installed under ${prefix}.
4797 You may need to run \"${MAKE-make} install\" with sudo.  The application will fail
4798 to run if these resources are not installed."
4799    fi
4800    echo
4801 fi
4802
4803 if test "${opsys}" = "cygwin"; then
4804   case `uname -r` in
4805     1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4806            echo
4807            ;;
4808   esac
4809 fi
4810
4811 # Remove any trailing slashes in these variables.
4812 [test "${prefix}" != NONE &&
4813   prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4814 test "${exec_prefix}" != NONE &&
4815   exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4816
4817 if test "$HAVE_NS" = "yes"; then
4818   if test "$NS_IMPL_GNUSTEP" = yes; then
4819     AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4820       nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4821   else
4822     AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4823       nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4824   fi
4825 fi
4826
4827 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4828 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4829 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4830 dnl (else you get "no `Makefile.am' found for any configure output").
4831 dnl This will work, but you get a config.status that is not quite right
4832 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4833 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4834 dnl it seems better to just live with the duplication.
4835 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4836
4837 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4838        doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4839        doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4840        leim/Makefile nextstep/Makefile nt/Makefile])
4841
4842 dnl test/ is not present in release tarfiles.
4843 opt_makefile=test/automated/Makefile
4844
4845 if test -f "$srcdir/$opt_makefile.in"; then
4846   SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4847   dnl Again, it's best not to use a variable.  Though you can add
4848   dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4849   AC_CONFIG_FILES([test/automated/Makefile])
4850 fi
4851
4852
4853 dnl admin/ may or may not be present.
4854 opt_makefile=admin/unidata/Makefile
4855
4856 if test -f "$srcdir/$opt_makefile.in"; then
4857   SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4858   AC_CONFIG_FILES([admin/unidata/Makefile])
4859 fi
4860
4861
4862 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4863
4864 AC_SUBST(SUBDIR_MAKEFILES_IN)
4865
4866 dnl Make the necessary directories, if they don't exist.
4867 AC_CONFIG_COMMANDS([mkdirs], [
4868 for dir in etc lisp ; do
4869   test -d ${dir} || mkdir ${dir}
4870 done
4871 ])
4872
4873 dnl You might wonder (I did) why epaths.h is generated by running make,
4874 dnl rather than just letting configure generate it from epaths.in.
4875 dnl One reason is that the various paths are not fully expanded (see above);
4876 dnl eg gamedir=${prefix}/var/games/emacs.
4877 dnl Secondly, the GNU Coding standards require that one should be able
4878 dnl to run `make prefix=/some/where/else' and override the values set
4879 dnl by configure.  This also explains the `move-if-change' test and
4880 dnl the use of force in the `epaths-force' rule in Makefile.in.
4881 AC_CONFIG_COMMANDS([epaths], [
4882 echo creating src/epaths.h
4883 if test "${opsys}" = "mingw32"; then
4884   ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4885 else
4886   ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4887 fi
4888 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4889
4890 AC_CONFIG_COMMANDS([gdbinit], [
4891 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4892   echo creating src/.gdbinit
4893   echo "source $srcdir/src/.gdbinit" > src/.gdbinit
4894 fi
4895 ])
4896
4897 AC_OUTPUT