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

   1 dnl  Autoconf script for GNU Emacs
   2 dnl To rebuild the `configure' script from this, execute the command
   3 dnl     autoconf
   4 dnl in the directory containing this script.
   5 dnl If you changed any AC_DEFINES, also run autoheader.
   6 dnl
   7 dnl Copyright (C) 1994-1996, 1999-2011  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, 24.0.50)
  26 AC_CONFIG_HEADER(src/config.h:src/config.in)
  27 AC_CONFIG_SRCDIR(src/lisp.h)
  28 AM_INIT_AUTOMAKE
  29
  30 dnl Support for --program-prefix, --program-suffix and
  31 dnl --program-transform-name options
  32 AC_ARG_PROGRAM
  33
  34 dnl It is important that variables on the RHS not be expanded here,
  35 dnl hence the single quotes.  This is per the GNU coding standards, see
  36 dnl (autoconf) Installation Directory Variables
  37 dnl See also epaths.h below.
  38 lispdir='${datadir}/emacs/${version}/lisp'
  39 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
  40 '${datadir}/emacs/site-lisp'
  41 lisppath='${locallisppath}:${lispdir}:${datadir}/emacs/${version}/leim'
  42 etcdir='${datadir}/emacs/${version}/etc'
  43 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
  44 docdir='${datadir}/emacs/${version}/etc'
  45 gamedir='${localstatedir}/games/emacs'
  46
  47 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
  48 dnl Create a new --with option that defaults to being disabled.
  49 dnl NAME is the base name of the option.  The shell variable with_NAME
  50 dnl   will be set to either the user's value (if the option is
  51 dnl   specified; 'yes' for a plain --with-NAME) or to 'no' (if the
  52 dnl   option is not specified).  Note that the shell variable name is
  53 dnl   constructed as autoconf does, by replacing non-alphanumeric
  54 dnl   characters with "_".
  55 dnl HELP-STRING is the help text for the option.
  56 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
  57   AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
  58     m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
  59 ])dnl
  60
  61 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
  62 dnl Create a new --with option that defaults to being enabled.  NAME
  63 dnl   is the base name of the option.  The shell variable with_NAME
  64 dnl   will be set either to 'no' (for a plain --without-NAME) or to
  65 dnl   'yes' (if the option is not specified).  Note that the shell
  66 dnl   variable name is constructed as autoconf does, by replacing
  67 dnl   non-alphanumeric characters with "_".
  68 dnl HELP-STRING is the help text for the option.
  69 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
  70   AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
  71    m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=yes])dnl
  72 ])dnl
  73
  74 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
  75 if test "$with_pop" = yes; then
  76    AC_DEFINE(MAIL_USE_POP)
  77 fi
  78 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
  79
  80 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
  81 if test "$with_kerberos" != no; then
  82    AC_DEFINE(KERBEROS)
  83 fi
  84 AH_TEMPLATE(KERBEROS,
  85             [Define to support Kerberos-authenticated POP mail retrieval.])dnl
  86
  87 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
  88 if test "${with_kerberos5}" != no; then
  89   if test "${with_kerberos}" = no; then
  90     with_kerberos=yes
  91     AC_DEFINE(KERBEROS)
  92   fi
  93   AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
  94 fi
  95
  96 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
  97 dnl FIXME hesiod support may not be present, so it seems like an error
  98 dnl to define, or at least use, this unconditionally.
  99 if test "$with_hesiod" != no; then
 100   AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
 101 fi
 102
 103 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
 104 if test "$with_mmdf" != no; then
 105    AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
 106 fi
 107
 108 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
 109 if test "$with_mail_unlink" != no; then
 110    AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
 111 fi
 112
 113 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
 114     [string giving default POP mail host])],
 115     AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
 116
 117 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
 118
 119 OPTION_DEFAULT_ON([sync-input],[process async input synchronously])
 120 if test "$with_sync_input" = yes; then
 121    AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])
 122 fi
 123
 124 dnl FIXME currently it is not the last.
 125 dnl This should be the last --with option, because --with-x is
 126 dnl added later on when we find the path of X, and it's best to
 127 dnl keep them together visually.
 128 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
 129  [use an X toolkit (KIT one of: yes or gtk, gtk3, lucid or athena, motif, no)])],
 130 [         case "${withval}" in
 131             y | ye | yes )      val=gtk ;;
 132             n | no )            val=no  ;;
 133             l | lu | luc | luci | lucid )       val=lucid ;;
 134             a | at | ath | athe | athen | athena )      val=athena ;;
 135             m | mo | mot | moti | motif )       val=motif ;;
 136             g | gt | gtk  )     val=gtk ;;
 137             gtk3  )     val=gtk3 ;;
 138             * )
 139 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
 140 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk' or
 141 `gtk3'.  `yes' and `gtk' are synonyms. `athena' and `lucid' are synonyms.])
 142             ;;
 143           esac
 144           with_x_toolkit=$val
 145 ])
 146
 147 dnl _ON results in a '--without' option in the --help output, so
 148 dnl the help text should refer to "don't compile", etc.
 149 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
 150 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
 151 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
 152 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
 153 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
 154 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
 155 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
 156 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
 157
 158 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
 159 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
 160 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
 161
 162 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
 163 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
 164 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
 165 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
 166
 167 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
 168 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
 169 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
 170 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
 171 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
 172
 173 ## For the times when you want to build Emacs but don't have
 174 ## a suitable makeinfo, and can live without the manuals.
 175 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
 176 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
 177
 178 ## This is an option because I do not know if all info/man support
 179 ## compressed files, nor how to test if they do so.
 180 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
 181 if test $with_compress_info = yes; then
 182    GZIP_INFO=yes
 183 else
 184    GZIP_INFO=
 185 fi
 186 AC_SUBST(GZIP_INFO)
 187
 188 AC_ARG_WITH([pkg-config-prog],dnl
 189 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
 190                   [path to pkg-config for finding GTK and librsvg])])
 191 if test "X${with_pkg_config_prog}" != X; then
 192    if test "${with_pkg_config_prog}" != yes; then
 193       PKG_CONFIG="${with_pkg_config_prog}"
 194    fi
 195 fi
 196
 197 CRT_DIR=
 198 AC_ARG_WITH([crt-dir],dnl
 199 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
 200 The default is /usr/lib, or /usr/lib64 on some platforms.])])
 201 CRT_DIR="${with_crt_dir}"
 202
 203 AC_ARG_WITH(gameuser,dnl
 204 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
 205 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
 206   && gameuser="${with_gameuser}"
 207 test "X$gameuser" = X && gameuser=games
 208
 209 AC_ARG_WITH([gnustep-conf],dnl
 210 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
 211 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
 212   GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
 213 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
 214      GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
 215
 216 AC_ARG_ENABLE(ns-self-contained,
 217 [AS_HELP_STRING([--disable-ns-self-contained],
 218                 [disable self contained build under NeXTstep])],
 219    EN_NS_SELF_CONTAINED=$enableval,
 220    EN_NS_SELF_CONTAINED=yes)
 221
 222 AC_ARG_ENABLE(asserts,
 223 [AS_HELP_STRING([--enable-asserts], [compile code with asserts enabled])],
 224       USE_XASSERTS=$enableval,
 225       USE_XASSERTS=no)
 226
 227 AC_ARG_ENABLE(maintainer-mode,
 228 [AS_HELP_STRING([--enable-maintainer-mode],
 229                 [enable make rules and dependencies not useful (and sometimes
 230                  confusing) to the casual installer])],
 231       USE_MAINTAINER_MODE=$enableval,
 232       USE_MAINTAINER_MODE=no)
 233 if test $USE_MAINTAINER_MODE = yes; then
 234   MAINT=
 235 else
 236   MAINT=#
 237 fi
 238 AC_SUBST(MAINT)
 239
 240 AC_ARG_ENABLE(locallisppath,
 241 [AS_HELP_STRING([--enable-locallisppath=PATH],
 242                 [directories Emacs should search for lisp files specific
 243                  to this site])],
 244 if test "${enableval}" = "no"; then
 245   locallisppath=
 246 elif test "${enableval}" != "yes"; then
 247   locallisppath=${enableval}
 248 fi)
 249
 250 AC_ARG_ENABLE(checking,
 251 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
 252                 [enable expensive run-time checks.  With LIST,
 253                  enable only specific categories of checks.
 254                  Categories are: all,yes,no.
 255                  Flags are: stringbytes, stringoverrun, stringfreelist,
 256                  xmallocoverrun, conslist])],
 257 [ac_checking_flags="${enableval}"],[])
 258 IFS="${IFS=     }"; ac_save_IFS="$IFS"; IFS="$IFS,"
 259 for check in $ac_checking_flags
 260 do
 261         case $check in
 262         # these set all the flags to specific states
 263         yes)            ac_enable_checking=1 ;;
 264         no)             ac_enable_checking= ;
 265                         ac_gc_check_stringbytes= ;
 266                         ac_gc_check_string_overrun= ;
 267                         ac_gc_check_string_free_list= ;
 268                         ac_xmalloc_overrun= ;
 269                         ac_gc_check_cons_list= ;;
 270         all)            ac_enable_checking=1 ;
 271                         ac_gc_check_stringbytes=1 ;
 272                         ac_gc_check_string_overrun=1 ;
 273                         ac_gc_check_string_free_list=1 ;
 274                         ac_xmalloc_overrun=1 ;
 275                         ac_gc_check_cons_list=1 ;;
 276         # these enable particular checks
 277         stringbytes)    ac_gc_check_stringbytes=1 ;;
 278         stringoverrun)  ac_gc_check_string_overrun=1 ;;
 279         stringfreelist) ac_gc_check_string_free_list=1 ;;
 280         xmallocoverrun) ac_xmalloc_overrun=1 ;;
 281         conslist)       ac_gc_check_cons_list=1 ;;
 282         *)      AC_MSG_ERROR(unknown check category $check) ;;
 283         esac
 284 done
 285 IFS="$ac_save_IFS"
 286
 287 if test x$ac_enable_checking != x ; then
 288   AC_DEFINE(ENABLE_CHECKING, 1,
 289 [Enable expensive run-time checking of data types?])
 290 fi
 291 if test x$ac_gc_check_stringbytes != x ; then
 292   AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
 293 [Define this temporarily to hunt a bug.  If defined, the size of
 294    strings is redundantly recorded in sdata structures so that it can
 295    be compared to the sizes recorded in Lisp strings.])
 296 fi
 297 if test x$ac_gc_check_stringoverrun != x ; then
 298   AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
 299 [Define this to check for short string overrun.])
 300 fi
 301 if test x$ac_gc_check_string_free_list != x ; then
 302   AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
 303 [Define this to check the string free list.])
 304 fi
 305 if test x$ac_xmalloc_overrun != x ; then
 306   AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
 307 [Define this to check for malloc buffer overrun.])
 308 fi
 309 if test x$ac_gc_check_cons_list != x ; then
 310   AC_DEFINE(GC_CHECK_CONS_LIST, 1,
 311 [Define this to check for errors in cons list.])
 312 fi
 313
 314 AC_ARG_ENABLE(use-lisp-union-type,
 315 [AS_HELP_STRING([--enable-use-lisp-union-type],
 316                 [use a union for the Lisp_Object data type.
 317                 This is only useful for development for catching certain types of bugs.])],
 318 if test "${enableval}" != "no"; then
 319    AC_DEFINE(USE_LISP_UNION_TYPE, 1,
 320    [Define this to use a lisp union for the Lisp_Object data type.])
 321 fi)
 322
 323
 324 AC_ARG_ENABLE(profiling,
 325 [AS_HELP_STRING([--enable-profiling],
 326                 [build emacs with profiling support.
 327                  This might not work on all platforms])],
 328 [ac_enable_profiling="${enableval}"],[])
 329 if test x$ac_enable_profiling != x ; then
 330    PROFILING_CFLAGS="-DPROFILING=1 -pg"
 331 else
 332    PROFILING_CFLAGS=
 333 fi
 334 AC_SUBST(PROFILING_CFLAGS)
 335
 336 AC_ARG_ENABLE(autodepend,
 337 [AS_HELP_STRING([--enable-autodepend],
 338                 [automatically generate dependencies to .h-files.
 339                  Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
 340                  found])],
 341 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
 342
 343 #### Make srcdir absolute, if it isn't already.  It's important to
 344 #### avoid running the path through pwd unnecessarily, since pwd can
 345 #### give you automounter prefixes, which can go away.  We do all this
 346 #### so Emacs can find its files when run uninstalled.
 347 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
 348 unset CDPATH
 349 case "${srcdir}" in
 350   /* ) ;;
 351   . )
 352     ## We may be able to use the $PWD environment variable to make this
 353     ## absolute.  But sometimes PWD is inaccurate.
 354     ## Note: we used to use ${PWD} at the end instead of `pwd`,
 355     ## but that tested only for a well-formed and valid PWD,
 356     ## it did not object when PWD was well-formed and valid but just wrong.
 357     if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`"  ;
 358     then
 359       srcdir="$PWD"
 360     else
 361       srcdir="`(cd ${srcdir}; pwd)`"
 362     fi
 363   ;;
 364   *  ) srcdir="`(cd ${srcdir}; pwd)`" ;;
 365 esac
 366
 367 #### Check if the source directory already has a configured system in it.
 368 if test `pwd` != `(cd ${srcdir} && pwd)` \
 369    && test -f "${srcdir}/src/config.h" ; then
 370   AC_MSG_WARN([[The directory tree `${srcdir}' is being used
 371    as a build directory right now; it has been configured in its own
 372    right.  To configure in another directory as well, you MUST
 373    use GNU make.  If you do not have GNU make, then you must
 374    now do `make distclean' in ${srcdir},
 375    and then run $0 again.]])
 376 fi
 377
 378 #### Given the configuration name, set machfile and opsysfile to the
 379 #### names of the m/*.h and s/*.h files we should use.
 380
 381 ### Canonicalize the configuration name.
 382
 383 AC_CANONICAL_HOST
 384 canonical=$host
 385 configuration=${host_alias-${build_alias-$host}}
 386
 387 dnl This used to use changequote, but, apart from `changequote is evil'
 388 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
 389 dnl the great gob of text.  Thus it's not processed for possible expansion.
 390 dnl Just make sure the brackets remain balanced.
 391 dnl
 392 dnl Since Emacs can't find matching pairs of quotes, boundaries are
 393 dnl indicated by comments.
 394 dnl quotation begins
 395 [
 396
 397 ### If you add support for a new configuration, add code to this
 398 ### switch statement to recognize your configuration name and select
 399 ### the appropriate operating system and machine description files.
 400
 401 ### You would hope that you could choose an m/*.h file pretty much
 402 ### based on the machine portion of the configuration name, and an s/*.h
 403 ### file based on the operating system portion.  However, it turns out
 404 ### that each m/*.h file is pretty manufacturer-specific - for
 405 ### example mips.h is MIPS
 406 ### So we basically have to have a special case for each
 407 ### configuration name.
 408 ###
 409 ### As far as handling version numbers on operating systems is
 410 ### concerned, make sure things will fail in a fixable way.  If
 411 ### /etc/MACHINES doesn't say anything about version numbers, be
 412 ### prepared to handle anything reasonably.  If version numbers
 413 ### matter, be sure /etc/MACHINES says something about it.
 414
 415 machine='' opsys='' unported=no
 416 case "${canonical}" in
 417
 418   ## GNU/Linux ports
 419   *-*-linux-gnu*)
 420     opsys=gnu-linux
 421     case ${canonical} in
 422       alpha*)   machine=alpha ;;
 423       s390-*)   machine=ibms390 ;;
 424       s390x-*)  machine=ibms390x ;;
 425       powerpc*) machine=macppc ;;
 426       sparc*)   machine=sparc ;;
 427       ia64*)    machine=ia64 ;;
 428       m68k*)    machine=m68k ;;
 429       x86_64*)  machine=amdx86-64 ;;
 430     esac
 431   ;;
 432
 433   ## FreeBSD ports
 434   *-*-freebsd* )
 435     opsys=freebsd
 436     case "${canonical}" in
 437       alpha*)           machine=alpha ;;
 438       amd64-*|x86_64-*) machine=amdx86-64 ;;
 439       ia64-*)           machine=ia64 ;;
 440       i[3456]86-*)      machine=intel386 ;;
 441       powerpc-*)        machine=macppc ;;
 442       sparc-*)          machine=sparc ;;
 443       sparc64-*)        machine=sparc ;;
 444     esac
 445   ;;
 446
 447   ## FreeBSD kernel + glibc based userland
 448   *-*-kfreebsd*gnu* )
 449     opsys=gnu-kfreebsd
 450     case "${canonical}" in
 451       alpha*)           machine=alpha ;;
 452       amd64-*|x86_64-*) machine=amdx86-64 ;;
 453       ia64-*)           machine=ia64 ;;
 454       i[3456]86-*)      machine=intel386 ;;
 455       powerpc-*)        machine=macppc ;;
 456       sparc-*)          machine=sparc ;;
 457       sparc64-*)        machine=sparc ;;
 458     esac
 459   ;;
 460
 461   ## NetBSD ports
 462   *-*-netbsd* )
 463     opsys=netbsd
 464     case "${canonical}" in
 465       alpha*)      machine=alpha ;;
 466       x86_64-*)    machine=amdx86-64 ;;
 467       i[3456]86-*) machine=intel386 ;;
 468       m68k-*)      machine=m68k ;;
 469       powerpc-*)   machine=macppc ;;
 470       sparc*-)     machine=sparc ;;
 471       vax-*)       machine=vax ;;
 472     esac
 473   ;;
 474
 475   ## OpenBSD ports
 476   *-*-openbsd* )
 477     opsys=openbsd
 478     case "${canonical}" in
 479       alpha*)    machine=alpha ;;
 480       x86_64-*)  machine=amdx86-64 ;;
 481       i386-*)    machine=intel386 ;;
 482       powerpc-*) machine=macppc ;;
 483       sparc*)    machine=sparc ;;
 484       vax-*)     machine=vax ;;
 485     esac
 486   ;;
 487
 488   ## Apple Darwin / Mac OS X
 489   *-apple-darwin* )
 490     case "${canonical}" in
 491       i[3456]86-* )  machine=intel386 ;;
 492       powerpc-* )    machine=macppc ;;
 493       x86_64-* )     machine=amdx86-64 ;;
 494       * )            unported=yes ;;
 495     esac
 496     opsys=darwin
 497     # Define CPP as follows to make autoconf work correctly.
 498     CPP="${CC-cc} -E -no-cpp-precomp"
 499     # Use fink packages if available.
 500     if test -d /sw/include && test -d /sw/lib; then
 501       GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
 502       CPP="${CPP} ${GCC_TEST_OPTIONS}"
 503       NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
 504     fi
 505   ;;
 506
 507   ## HP 9000 series 700 and 800, running HP/UX
 508   hppa*-hp-hpux10.2* )
 509     opsys=hpux10-20
 510   ;;
 511   hppa*-hp-hpux1[1-9]* )
 512     opsys=hpux11
 513     CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
 514   ;;
 515
 516   ia64*-hp-hpux1[1-9]* )
 517     machine=hp800 opsys=hpux11
 518     ## FIXME.  Peter O'Gorman reports that dumping using unexelf.o doesn't
 519     ## work either: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=6811
 520     CANNOT_DUMP=yes
 521   ;;
 522
 523   hppa*-*-linux-gnu* )
 524     machine=hp800 opsys=gnu-linux
 525   ;;
 526
 527   ## IBM machines
 528   rs6000-ibm-aix4.[23]* )
 529     machine=ibmrs6000 opsys=aix4-2
 530   ;;
 531   powerpc-ibm-aix4.[23]*  )
 532     machine=ibmrs6000 opsys=aix4-2
 533   ;;
 534   rs6000-ibm-aix[56]* )
 535     machine=ibmrs6000 opsys=aix4-2
 536   ;;
 537   powerpc-ibm-aix[56]*  )
 538     machine=ibmrs6000 opsys=aix4-2
 539   ;;
 540
 541   ## Silicon Graphics machines
 542   ## Iris 4D
 543   mips-sgi-irix6.5 )
 544     machine=iris4d opsys=irix6-5
 545     # Without defining _LANGUAGE_C, things get masked out in the headers
 546     # so that, for instance, grepping for `free' in stdlib.h fails and
 547     # AC_HEADER_STD_C fails.   (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
 548     NON_GNU_CPP="/lib/cpp -D_LANGUAGE_C"
 549     NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
 550   ;;
 551
 552   ## Suns
 553   *-sun-solaris* \
 554     | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
 555     | x86_64-*-solaris2*    | x86_64-*-sunos5*)
 556     case "${canonical}" in
 557       i[3456]86-*-* )     machine=intel386 ;;
 558       amd64-*-*|x86_64-*-*)     machine=amdx86-64 ;;
 559       sparc* )          machine=sparc ;;
 560       * )               unported=yes ;;
 561     esac
 562     case "${canonical}" in
 563       *-sunos5.6* | *-solaris2.6* )
 564                 opsys=sol2-6
 565                 NON_GNU_CPP=/usr/ccs/lib/cpp
 566                 RANLIB="ar -ts"
 567                 ;;
 568       *-sunos5.[7-9]* | *-solaris2.[7-9]* )
 569                 opsys=sol2-6
 570                 emacs_check_sunpro_c=yes
 571                 NON_GNU_CPP=/usr/ccs/lib/cpp
 572                 ;;
 573       *-sunos5* | *-solaris* )
 574                 opsys=sol2-10
 575                 emacs_check_sunpro_c=yes
 576                 NON_GNU_CPP=/usr/ccs/lib/cpp
 577                 ;;
 578     esac
 579     ## Watch out for a compiler that we know will not work.
 580     case "${canonical}" in
 581      *-solaris* | *-sunos5* )
 582                 if [ "x$CC" = x/usr/ucb/cc ]; then
 583                   ## /usr/ucb/cc doesn't work;
 584                   ## we should find some other compiler that does work.
 585                   unset CC
 586                 fi
 587                 ;;
 588       *) ;;
 589     esac
 590   ;;
 591
 592   ## Intel 386 machines where we don't care about the manufacturer.
 593   i[3456]86-*-* )
 594     machine=intel386
 595     case "${canonical}" in
 596       *-cygwin )                opsys=cygwin ;;
 597       *-darwin* )               opsys=darwin
 598                                 CPP="${CC-cc} -E -no-cpp-precomp"
 599                                 ;;
 600       *-sysv4.2uw* )            opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
 601       *-sysv5uw* )              opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
 602       *-sysv5OpenUNIX* )        opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
 603       ## Otherwise, we'll fall through to the generic opsys code at the bottom.
 604     esac
 605   ;;
 606
 607   * )
 608     unported=yes
 609   ;;
 610 esac
 611
 612 ### If the code above didn't choose an operating system, just choose
 613 ### an operating system based on the configuration name.  You really
 614 ### only want to use this when you have no idea what the right
 615 ### operating system is; if you know what operating systems a machine
 616 ### runs, it's cleaner to make it explicit in the case statement
 617 ### above.
 618 if test x"${opsys}" = x; then
 619   case "${canonical}" in
 620     *-gnu* )                            opsys=gnu ;;
 621     * )
 622       unported=yes
 623     ;;
 624   esac
 625 fi
 626
 627 ]
 628 dnl quotation ends
 629
 630 if test $unported = yes; then
 631   AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
 632 Check `etc/MACHINES' for recognized configuration names.])
 633 fi
 634
 635 if test -n "$machine"; then
 636   machfile="m/${machine}.h"
 637 else
 638   machfile=
 639 fi
 640 opsysfile="s/${opsys}.h"
 641
 642
 643 #### Choose a compiler.
 644 test -n "$CC" && cc_specified=yes
 645
 646 # Save the value of CFLAGS that the user specified.
 647 SPECIFIED_CFLAGS="$CFLAGS"
 648
 649 dnl Sets GCC=yes if using gcc.
 650 AC_PROG_CC
 651 AM_PROG_CC_C_O
 652
 653 # Initialize gnulib right after verifying that the C compiler works.
 654 gl_EARLY
 655
 656 # On Suns, sometimes $CPP names a directory.
 657 if test -n "$CPP" && test -d "$CPP"; then
 658   CPP=
 659 fi
 660
 661 ## If not using gcc, and on Solaris, and no CPP specified, see if
 662 ## using a Sun compiler, which needs -Xs to prevent whitespace.
 663 if test x"$GCC" != xyes && test x"$emacs_check_sunpro_c" = xyes && \
 664  test x"$CPP" = x; then
 665   AC_MSG_CHECKING([whether we are using a Sun C compiler])
 666   AC_CACHE_VAL(emacs_cv_sunpro_c,
 667   [AC_TRY_LINK([],
 668 [#ifndef __SUNPRO_C
 669 fail;
 670 #endif
 671 ], emacs_cv_sunpro_c=yes, emacs_cv_sunpro_c=no)])
 672   AC_MSG_RESULT($emacs_cv_sunpro_c)
 673
 674   if test x"$emacs_cv_sunpro_c" = xyes; then
 675     NON_GNU_CPP="$CC -E -Xs"
 676   fi
 677 fi
 678
 679 #### Some systems specify a CPP to use unless we are using GCC.
 680 #### Now that we know whether we are using GCC, we can decide whether
 681 #### to use that one.
 682 if test "x$NON_GNU_CPP" != x && test x$GCC != xyes && test "x$CPP" = x
 683 then
 684   CPP="$NON_GNU_CPP"
 685 fi
 686
 687 #### Some systems specify a CC to use unless we are using GCC.
 688 #### Now that we know whether we are using GCC, we can decide whether
 689 #### to use that one.
 690 if test "x$NON_GNU_CC" != x && test x$GCC != xyes &&
 691   test x$cc_specified != xyes
 692 then
 693   CC="$NON_GNU_CC"
 694 fi
 695
 696 if test x$GCC = xyes; then
 697   test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
 698 else
 699   test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
 700 fi
 701
 702 ### Use -Wdeclaration-after-statement if the compiler supports it
 703 AC_MSG_CHECKING([whether gcc understands -Wdeclaration-after-statement])
 704 SAVE_CFLAGS="$CFLAGS"
 705 CFLAGS="$CFLAGS -Wdeclaration-after-statement"
 706 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 707 if test $has_option = yes; then
 708    C_WARNINGS_SWITCH="-Wdeclaration-after-statement $C_WARNINGS_SWITCH"
 709 fi
 710 AC_MSG_RESULT($has_option)
 711 CFLAGS="$SAVE_CFLAGS"
 712 unset has_option
 713 unset SAVE_CFLAGS
 714
 715 ### Use -Wold-style-definition if the compiler supports it
 716 # This can be removed when conversion to standard C is finished.
 717 AC_MSG_CHECKING([whether gcc understands -Wold-style-definition])
 718 SAVE_CFLAGS="$CFLAGS"
 719 CFLAGS="$CFLAGS -Wold-style-definition"
 720 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 721 if test $has_option = yes; then
 722    C_WARNINGS_SWITCH="-Wold-style-definition $C_WARNINGS_SWITCH"
 723 fi
 724 AC_MSG_RESULT($has_option)
 725 CFLAGS="$SAVE_CFLAGS"
 726 unset has_option
 727 unset SAVE_CFLAGS
 728
 729 ### Use -Wimplicit-function-declaration if the compiler supports it
 730 AC_MSG_CHECKING([whether gcc understands -Wimplicit-function-declaration])
 731 SAVE_CFLAGS="$CFLAGS"
 732 CFLAGS="$CFLAGS -Wimplicit-function-declaration"
 733 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 734 if test $has_option = yes; then
 735    C_WARNINGS_SWITCH="-Wimplicit-function-declaration $C_WARNINGS_SWITCH"
 736 fi
 737 AC_MSG_RESULT($has_option)
 738 CFLAGS="$SAVE_CFLAGS"
 739 unset has_option
 740 unset SAVE_CFLAGS
 741
 742 AC_SUBST(C_WARNINGS_SWITCH)
 743
 744
 745 #### Some other nice autoconf tests.
 746
 747 dnl checks for programs
 748 AC_PROG_CPP
 749 AC_PROG_INSTALL
 750 if test "x$RANLIB" = x; then
 751   AC_PROG_RANLIB
 752 fi
 753
 754 ## Although we're running on an amd64 kernel, we're actually compiling for
 755 ## the x86 architecture.  The user should probably have provided an
 756 ## explicit --build to `configure', but if everything else than the kernel
 757 ## is running in i386 mode, we can help them out.
 758 if test "$machine" = "amdx86-64"; then
 759   AC_CHECK_DECL([i386])
 760   if test "$ac_cv_have_decl_i386" = "yes"; then
 761     canonical=`echo "$canonical" | sed -e 's/^amd64/i386/' -e 's/^x86_64/i386/'`
 762     machine=intel386
 763     machfile="m/${machine}.h"
 764   fi
 765 fi
 766
 767 AC_PATH_PROG(INSTALL_INFO, install-info)
 768 AC_PATH_PROG(INSTALL_INFO, install-info,, /usr/sbin)
 769 AC_PATH_PROG(INSTALL_INFO, install-info,:, /sbin)
 770 dnl Don't use GZIP, which is used by gzip for additional parameters.
 771 AC_PATH_PROG(GZIP_PROG, gzip)
 772
 773
 774 ## Need makeinfo >= 4.6 (?) to build the manuals.
 775 AC_PATH_PROG(MAKEINFO, makeinfo, no)
 776 dnl By this stage, configure has already checked for egrep and set EGREP,
 777 dnl or exited with an error if no egrep was found.
 778 if test "$MAKEINFO" != "no" && \
 779   test x"`$MAKEINFO --version 2> /dev/null | $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[6-9]]|4\.[[1-5]][[0-9]]+)'`" = x; then
 780    MAKEINFO=no
 781 fi
 782
 783 ## Makeinfo is unusual.  For a released Emacs, the manuals are
 784 ## pre-built, and not deleted by the normal clean rules.  makeinfo is
 785 ## therefore in the category of "special tools" not normally required, which
 786 ## configure does not have to check for (eg autoconf itself).
 787 ## In a Bazaar checkout on the other hand, the manuals are not included.
 788 ## So makeinfo is a requirement to build from Bazaar, and configure
 789 ## should test for it as it does for any other build requirement.
 790 ## We use the presence of $srcdir/info/emacs to distinguish a release,
 791 ## with pre-built manuals, from a Bazaar checkout.
 792 HAVE_MAKEINFO=yes
 793
 794 if test "$MAKEINFO" = "no"; then
 795   MAKEINFO=makeinfo
 796   if test "x${with_makeinfo}" = "xno"; then
 797     HAVE_MAKEINFO=no
 798   elif test ! -e $srcdir/info/emacs; then
 799     AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.6, and your
 800 source tree does not seem to have pre-built manuals in the `info' directory.
 801 Either install a suitable version of makeinfo, or re-run configure
 802 with the `--without-makeinfo' option to build without the manuals.] )
 803   fi
 804 fi
 805 AC_SUBST(HAVE_MAKEINFO)
 806
 807 dnl Add our options to ac_link now, after it is set up.
 808
 809 if test x$GCC = xyes; then
 810   test "x$GCC_LINK_TEST_OPTIONS" != x && \
 811     ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
 812 else
 813   test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
 814     ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
 815 fi
 816
 817 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
 818 dnl If we can link with the flag, it shouldn't do any harm anyhow.
 819 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
 820 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
 821 dnl if not built to support GNU ld.
 822
 823 late_LDFLAGS=$LDFLAGS
 824 if test x$GCC = xyes; then
 825   LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
 826 else
 827   LDFLAGS="$LDFLAGS -znocombreloc"
 828 fi
 829
 830 AC_MSG_CHECKING([for -znocombreloc])
 831 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
 832   [AC_MSG_RESULT(yes)],
 833   LDFLAGS=$late_LDFLAGS
 834   [AC_MSG_RESULT(no)])
 835
 836
 837 # The value of CPP is a quoted variable reference, so we need to do this
 838 # to get its actual value...
 839 CPP=`eval "echo $CPP"`
 840
 841
 842 dnl The function dump-emacs will not be defined and temacs will do
 843 dnl (load "loadup") automatically unless told otherwise.
 844 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
 845 case "$opsys" in
 846   your-opsys-here) CANNOT_DUMP=yes ;;
 847 esac
 848
 849 test "$CANNOT_DUMP" = "yes" && \
 850   AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
 851
 852 AC_SUBST(CANNOT_DUMP)
 853
 854
 855 UNEXEC_OBJ=unexelf.o
 856 case "$opsys" in
 857   # MSDOS uses unexcoff.o
 858   # MSWindows uses unexw32.o
 859   aix4-2)
 860    UNEXEC_OBJ=unexaix.o
 861    ;;
 862   cygwin)
 863    UNEXEC_OBJ=unexcw.o
 864    ;;
 865   darwin)
 866    UNEXEC_OBJ=unexmacosx.o
 867    ;;
 868   hpux10-20 | hpux11)
 869    UNEXEC_OBJ=unexhp9k800.o
 870    ;;
 871   sol2-10)
 872    # Use the Solaris dldump() function, called from unexsol.c, to dump
 873    # emacs, instead of the generic ELF dump code found in unexelf.c.
 874    # The resulting binary has a complete symbol table, and is better
 875    # for debugging and other observability tools (debuggers, pstack, etc).
 876    #
 877    # If you encounter a problem using dldump(), please consider sending
 878    # a message to the OpenSolaris tools-linking mailing list:
 879    #      http://mail.opensolaris.org/mailman/listinfo/tools-linking
 880    #
 881    # It is likely that dldump() works with older Solaris too, but this has
 882    # not been tested, so for now this change is for Solaris 10 or newer.
 883    UNEXEC_OBJ=unexsol.o
 884    ;;
 885 esac
 886
 887 LD_SWITCH_SYSTEM=
 888 case "$opsys" in
 889   freebsd)
 890    ## Let `ld' find image libs and similar things in /usr/local/lib.
 891    ## The system compiler, GCC, has apparently been modified to not
 892    ## look there, contrary to what a stock GCC would do.
 893    LD_SWITCH_SYSTEM=-L/usr/local/lib
 894    ;;
 895
 896   gnu-linux)
 897    ## cpp test was "ifdef __mips__", but presumably this is equivalent...
 898    case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
 899    ;;
 900
 901   netbsd)
 902    LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
 903    ;;
 904
 905   openbsd)
 906    ## Han Boetes <han@mijncomputer.nl> says this is necessary,
 907    ## otherwise Emacs dumps core on elf systems.
 908    LD_SWITCH_SYSTEM="-Z"
 909    ;;
 910 esac
 911 AC_SUBST(LD_SWITCH_SYSTEM)
 912
 913 ac_link="$ac_link $LD_SWITCH_SYSTEM"
 914
 915 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_AUX,
 916 ## which has not been defined yet.  When this was handled with cpp,
 917 ## it was expanded to null when configure sourced the s/*.h file.
 918 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
 919 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
 920 ## (or somesuch), but because it is supposed to go at the _front_
 921 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
 922 ## Compare with the gnu-linux case below, which added to the end
 923 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
 924 ## LD_SWITCH_SYSTEM_TEMACS.
 925 case "$opsys" in
 926   netbsd|openbsd)
 927    ## _AUX_RPATH is like _AUX, but uses -rpath instead of -R.
 928    LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_AUX_RPATH) $LD_SWITCH_SYSTEM" ;;
 929 esac
 930
 931
 932 C_SWITCH_MACHINE=
 933 if test "$machine" = "alpha"; then
 934   AC_CHECK_DECL([__ELF__])
 935   if test "$ac_cv_have_decl___ELF__" = "yes"; then
 936     ## With ELF, make sure that all common symbols get allocated to in the
 937     ## data section.  Otherwise, the dump of temacs may miss variables in
 938     ## the shared library that have been initialized.  For example, with
 939     ## GNU libc, __malloc_initialized would normally be resolved to the
 940     ## shared library's .bss section, which is fatal.
 941     if test "x$GCC" = "xyes"; then
 942       C_SWITCH_MACHINE="-fno-common"
 943     else
 944       AC_MSG_ERROR([What gives?  Fix me if DEC Unix supports ELF now.])
 945     fi
 946   else
 947     UNEXEC_OBJ=unexalpha.o
 948   fi
 949 fi
 950 AC_SUBST(C_SWITCH_MACHINE)
 951
 952 AC_SUBST(UNEXEC_OBJ)
 953
 954 C_SWITCH_SYSTEM=
 955 ## Some programs in src produce warnings saying certain subprograms
 956 ## are too complex and need a MAXMEM value greater than 2000 for
 957 ## additional optimization.  --nils@exp-math.uni-essen.de
 958 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
 959   C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
 960 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
 961 ## It is redundant in glibc2, since we define _GNU_SOURCE.
 962 AC_SUBST(C_SWITCH_SYSTEM)
 963
 964
 965 LIBS_SYSTEM=
 966 case "$opsys" in
 967   ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
 968   aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
 969
 970   freebsd) LIBS_SYSTEM="-lutil" ;;
 971
 972   hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
 973
 974   sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
 975
 976   ## Motif needs -lgen.
 977   unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
 978 esac
 979 AC_SUBST(LIBS_SYSTEM)
 980
 981
 982 ### Make sure subsequent tests use flags consistent with the build flags.
 983
 984 if test x"${OVERRIDE_CPPFLAGS}" != x; then
 985   CPPFLAGS="${OVERRIDE_CPPFLAGS}"
 986 else
 987   CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
 988 fi
 989
 990 dnl Do this early because it can frob feature test macros for Unix-98 &c.
 991 AC_SYS_LARGEFILE
 992
 993
 994 ## If user specified a crt-dir, use that unconditionally.
 995 if test "X$CRT_DIR" = "X"; then
 996
 997   case "$canonical" in
 998     x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
 999     ## On x86-64 and s390x GNU/Linux distributions, the standard library
1000     ## can be in a variety of places.  We only try /usr/lib64 and /usr/lib.
1001     ## For anything else (eg /usr/lib32), it is up the user to specify
1002     ## the location (bug#5655).
1003     ## Test for crtn.o, not just the directory, because sometimes the
1004     ## directory exists but does not have the relevant files (bug#1287).
1005     ## FIXME better to test for binary compatibility somehow.
1006     test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1007     ;;
1008
1009     powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1010   esac
1011
1012   case "$opsys" in
1013     hpux10-20) CRT_DIR=/lib ;;
1014   esac
1015
1016   ## Default is /usr/lib.
1017   test "X$CRT_DIR" = "X" && CRT_DIR=/usr/lib
1018
1019 else
1020
1021   ## Some platforms don't use any of these files, so it is not
1022   ## appropriate to put this test outside the if block.
1023   test -e $CRT_DIR/crtn.o || test -e $CRT_DIR/crt0.o || \
1024     AC_MSG_ERROR([crt*.o not found in specified location.])
1025
1026 fi
1027
1028 AC_SUBST(CRT_DIR)
1029
1030 LIB_MATH=-lm
1031 LIB_STANDARD=
1032 START_FILES=
1033
1034 case $opsys in
1035   cygwin )
1036     LIB_MATH=
1037     START_FILES='pre-crt0.o'
1038     ;;
1039   darwin )
1040     ## Adding -lm confuses the dynamic linker, so omit it.
1041     LIB_MATH=
1042     START_FILES='pre-crt0.o'
1043     ;;
1044   freebsd )
1045     LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1046     START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1047     ;;
1048   gnu-linux | gnu-kfreebsd )
1049     LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1050     START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1051     ;;
1052   hpux10-20 | hpux11 )
1053     LIB_STANDARD=-lc
1054     START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1055     ;;
1056   netbsd | openbsd )
1057     if test -f $CRT_DIR/crti.o; then
1058         LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1059         START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1060     else
1061         LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1062         START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1063     fi
1064     ;;
1065 esac
1066
1067 AC_SUBST(LIB_MATH)
1068 AC_SUBST(START_FILES)
1069
1070 dnl This function definition taken from Gnome 2.0
1071 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1072 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1073 dnl also defines GSTUFF_PKG_ERRORS on error
1074 AC_DEFUN([PKG_CHECK_MODULES], [
1075   succeeded=no
1076
1077   AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1078
1079   if test "$PKG_CONFIG" = "no" ; then
1080      ifelse([$4], , [AC_MSG_ERROR([
1081       *** The pkg-config script could not be found. Make sure it is in your path, or give the full path to pkg-config with the PKG_CONFIG environment variable or --with-pkg-config-prog.  Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config.])], [$4])
1082   else
1083      PKG_CONFIG_MIN_VERSION=0.9.0
1084      if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1085         AC_MSG_CHECKING(for $2)
1086
1087         if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD; then
1088             AC_MSG_RESULT(yes)
1089             succeeded=yes
1090
1091             AC_MSG_CHECKING($1_CFLAGS)
1092             $1_CFLAGS=`$PKG_CONFIG --cflags "$2"|sed -e 's,///*,/,g'`
1093             AC_MSG_RESULT($$1_CFLAGS)
1094
1095             AC_MSG_CHECKING($1_LIBS)
1096             $1_LIBS=`$PKG_CONFIG --libs "$2"|sed -e 's,///*,/,g'`
1097             AC_MSG_RESULT($$1_LIBS)
1098         else
1099             AC_MSG_RESULT(no)
1100             $1_CFLAGS=""
1101             $1_LIBS=""
1102             ## If we have a custom action on failure, don't print errors, but
1103             ## do set a variable so people can do so.
1104             $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1105             ifelse([$4], ,echo $$1_PKG_ERRORS,)
1106         fi
1107
1108         AC_SUBST($1_CFLAGS)
1109         AC_SUBST($1_LIBS)
1110      else
1111         echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1112         echo "*** See http://www.freedesktop.org/software/pkgconfig"
1113      fi
1114   fi
1115
1116   if test $succeeded = yes; then
1117      ifelse([$3], , :, [$3])
1118   else
1119      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.])], [$4])
1120   fi
1121 ])
1122
1123
1124 if test "${with_sound}" != "no"; then
1125   # Sound support for GNU/Linux and the free BSDs.
1126   AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1127     have_sound_header=yes)
1128   # Emulation library used on NetBSD.
1129   AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1130   AC_SUBST(LIBSOUND)
1131
1132   ALSA_REQUIRED=1.0.0
1133   ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1134   PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1135   if test $HAVE_ALSA = yes; then
1136     SAVE_CFLAGS="$CFLAGS"
1137     SAVE_LDFLAGS="$LDFLAGS"
1138     CFLAGS="$ALSA_CFLAGS $CFLAGS"
1139     LDFLAGS="$ALSA_LIBS $LDFLAGS"
1140     AC_TRY_COMPILE([#include <asoundlib.h>], [snd_lib_error_set_handler (0);],
1141                     emacs_alsa_normal=yes,
1142                     emacs_alsa_normal=no)
1143     if test "$emacs_alsa_normal" != yes; then
1144       AC_TRY_COMPILE([#include <alsa/asoundlib.h>],
1145                      [snd_lib_error_set_handler (0);],
1146                      emacs_alsa_subdir=yes,
1147                      emacs_alsa_subdir=no)
1148       if test "$emacs_alsa_subdir" != yes; then
1149         AC_MSG_ERROR([pkg-config found alsa, but it does not compile.  See config.log for error messages.])
1150       fi
1151       ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1152     fi
1153
1154     CFLAGS="$SAVE_CFLAGS"
1155     LDFLAGS="$SAVE_LDFLAGS"
1156     LIBSOUND="$LIBSOUND $ALSA_LIBS"
1157     CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1158     AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1159   fi
1160
1161   dnl Define HAVE_SOUND if we have sound support.  We know it works and
1162   dnl compiles only on the specified platforms.  For others, it
1163   dnl probably doesn't make sense to try.
1164   if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1165      case "$opsys" in
1166        dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1167        gnu-linux|freebsd|netbsd)
1168          AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1169          ;;
1170      esac
1171   fi
1172
1173   AC_SUBST(CFLAGS_SOUND)
1174 fi
1175
1176 dnl checks for header files
1177 AC_CHECK_HEADERS(sys/select.h sys/time.h unistd.h utime.h \
1178   linux/version.h sys/systeminfo.h limits.h \
1179   stdio_ext.h fcntl.h coff.h pty.h sys/mman.h \
1180   sys/vlimit.h sys/resource.h locale.h sys/_mbstate_t.h \
1181   sys/utsname.h pwd.h utmp.h dirent.h util.h)
1182
1183 AC_MSG_CHECKING(if personality LINUX32 can be set)
1184 AC_TRY_COMPILE([#include <sys/personality.h>], [personality (PER_LINUX32)],
1185                emacs_cv_personality_linux32=yes,
1186                emacs_cv_personality_linux32=no)
1187 AC_MSG_RESULT($emacs_cv_personality_linux32)
1188
1189 if test $emacs_cv_personality_linux32 = yes; then
1190   AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1191             [Define to 1 if personality LINUX32 can be set.])
1192 fi
1193
1194 dnl On Solaris 8 there's a compilation warning for term.h because
1195 dnl it doesn't define `bool'.
1196 AC_CHECK_HEADERS(term.h, , , -)
1197 AC_HEADER_STDC
1198 AC_HEADER_TIME
1199 AC_CHECK_DECLS([sys_siglist])
1200 if test $ac_cv_have_decl_sys_siglist != yes; then
1201   # For Tru64, at least:
1202   AC_CHECK_DECLS([__sys_siglist])
1203   if test $ac_cv_have_decl___sys_siglist = yes; then
1204     AC_DEFINE(sys_siglist, __sys_siglist,
1205               [Define to any substitute for sys_siglist.])
1206   fi
1207 fi
1208 AC_HEADER_SYS_WAIT
1209
1210 dnl Some systems have utime.h but don't declare the struct anyplace.
1211 AC_CACHE_CHECK(for struct utimbuf, emacs_cv_struct_utimbuf,
1212 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
1213 #include <sys/time.h>
1214 #include <time.h>
1215 #else
1216 #ifdef HAVE_SYS_TIME_H
1217 #include <sys/time.h>
1218 #else
1219 #include <time.h>
1220 #endif
1221 #endif
1222 #ifdef HAVE_UTIME_H
1223 #include <utime.h>
1224 #endif], [static struct utimbuf x; x.actime = x.modtime;],
1225   emacs_cv_struct_utimbuf=yes, emacs_cv_struct_utimbuf=no))
1226 if test $emacs_cv_struct_utimbuf = yes; then
1227   AC_DEFINE(HAVE_STRUCT_UTIMBUF, 1, [Define to 1 if `struct utimbuf' is declared by <utime.h>.])
1228 fi
1229
1230 dnl checks for typedefs
1231 AC_TYPE_SIGNAL
1232
1233 dnl Check for speed_t typedef.
1234 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1235   [AC_TRY_COMPILE([#include <termios.h>], [speed_t x = 1;],
1236     emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1237 if test $emacs_cv_speed_t = yes; then
1238   AC_DEFINE(HAVE_SPEED_T, 1,
1239            [Define to 1 if `speed_t' is declared by <termios.h>.])
1240 fi
1241
1242 AC_CACHE_CHECK(for struct timeval, emacs_cv_struct_timeval,
1243 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
1244 #include <sys/time.h>
1245 #include <time.h>
1246 #else
1247 #ifdef HAVE_SYS_TIME_H
1248 #include <sys/time.h>
1249 #else
1250 #include <time.h>
1251 #endif
1252 #endif], [static struct timeval x; x.tv_sec = x.tv_usec;],
1253   emacs_cv_struct_timeval=yes, emacs_cv_struct_timeval=no))
1254 HAVE_TIMEVAL=$emacs_cv_struct_timeval
1255 if test $emacs_cv_struct_timeval = yes; then
1256   AC_DEFINE(HAVE_TIMEVAL, 1, [Define to 1 if `struct timeval' is declared by <sys/time.h>.])
1257 fi
1258
1259 AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1260 AC_TRY_COMPILE([#include <math.h>],
1261 [static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;],
1262   emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1263 HAVE_EXCEPTION=$emacs_cv_struct_exception
1264 if test $emacs_cv_struct_exception != yes; then
1265   AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])
1266 fi
1267
1268 AC_CHECK_HEADERS(sys/socket.h)
1269 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1270 #if HAVE_SYS_SOCKET_H
1271 #include <sys/socket.h>
1272 #endif])
1273
1274 dnl checks for structure members
1275 AC_STRUCT_TM
1276 AC_STRUCT_TIMEZONE
1277 AC_CHECK_MEMBER(struct tm.tm_gmtoff,
1278                 [AC_DEFINE(HAVE_TM_GMTOFF, 1,
1279                            [Define to 1 if `tm_gmtoff' is member of `struct tm'.])],,
1280                 [#include <time.h>])
1281 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1282                   struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1283                   struct ifreq.ifr_addr], , ,
1284                  [AC_INCLUDES_DEFAULT
1285 #if HAVE_SYS_SOCKET_H
1286 #include <sys/socket.h>
1287 #endif
1288 #if HAVE_NET_IF_H
1289 #include <net/if.h>
1290 #endif])
1291
1292 dnl checks for compiler characteristics
1293
1294 dnl Testing __STDC__ to determine prototype support isn't good enough.
1295 dnl DEC C, for instance, doesn't define it with default options, and
1296 dnl is used on 64-bit systems (OSF Alphas).  Similarly for volatile
1297 dnl and void *.
1298 AC_C_PROTOTYPES
1299 AC_C_VOLATILE
1300 AC_C_CONST
1301 dnl This isn't useful because we can't turn on use of `inline' unless
1302 dnl the compiler groks `extern inline'.
1303 dnl AC_C_INLINE
1304 AC_CACHE_CHECK([for void * support], emacs_cv_void_star,
1305   [AC_TRY_COMPILE(, [void * foo;],
1306                    emacs_cv_void_star=yes, emacs_cv_void_star=no)])
1307 if test $emacs_cv_void_star = yes; then
1308   AC_DEFINE(POINTER_TYPE, void)
1309 else
1310   AC_DEFINE(POINTER_TYPE, char)
1311 fi
1312 AH_TEMPLATE(POINTER_TYPE,
1313             [Define as `void' if your compiler accepts `void *'; otherwise
1314              define as `char'.])dnl
1315
1316 dnl Check for endianess
1317 AC_C_BIGENDIAN
1318
1319 AC_CACHE_CHECK([for  __attribute__ ((__aligned__ (expr)))],
1320   [emacs_cv_attribute_aligned],
1321   [AC_COMPILE_IFELSE(
1322      [AC_LANG_PROGRAM(
1323         [[char __attribute__ ((__aligned__ (1 << 3))) c;]],
1324         [[]])],
1325      [emacs_cv_attribute_aligned=yes],
1326      [emacs_cv_attribute_aligned=no])])
1327 if test $emacs_cv_attribute_aligned = yes; then
1328   AC_DEFINE([HAVE_ATTRIBUTE_ALIGNED], 1,
1329     [Define to 1 if GCC-style __attribute__ ((__aligned__ (expr))) works.])
1330 fi
1331
1332 dnl check for Make feature
1333 AC_PROG_MAKE_SET
1334
1335 DEPFLAGS=
1336 MKDEPDIR=":"
1337 deps_frag=deps.mk
1338 dnl check for GNU Make if we have GCC and autodepend is on.
1339 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1340    AC_MSG_CHECKING([whether we are using GNU Make])
1341    HAVE_GNU_MAKE=no
1342    testval=`make --version 2>/dev/null | grep 'GNU Make'`
1343    if test "x$testval" != x; then
1344       HAVE_GNU_MAKE=yes
1345    else
1346       ac_enable_autodepend=no
1347    fi
1348    AC_MSG_RESULT([$HAVE_GNU_MAKE])
1349    if test $HAVE_GNU_MAKE = yes; then
1350       AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1351       SAVE_CFLAGS="$CFLAGS"
1352       CFLAGS="$CFLAGS -MMD -MF deps.d"
1353       AC_TRY_COMPILE([], [], , ac_enable_autodepend=no)
1354       CFLAGS="$SAVE_CFLAGS"
1355       test -f deps.d || ac_enable_autodepend=no
1356       rm -rf deps.d
1357       AC_MSG_RESULT([$ac_enable_autodepend])
1358    fi
1359    if test $ac_enable_autodepend = yes; then
1360       DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d'
1361       ## In parallel builds, another make might create depdir between
1362       ## the first test and mkdir, so stick another test on the end.
1363       ## Or use mkinstalldirs?  mkdir -p is not portable.
1364       MKDEPDIR='test -d ${DEPDIR} || mkdir ${DEPDIR} || test -d ${DEPDIR}'
1365       deps_frag=autodeps.mk
1366    fi
1367 fi
1368 deps_frag=$srcdir/src/$deps_frag
1369 AC_SUBST(MKDEPDIR)
1370 AC_SUBST(DEPFLAGS)
1371 AC_SUBST_FILE(deps_frag)
1372
1373
1374 dnl checks for operating system services
1375 AC_SYS_LONG_FILE_NAMES
1376
1377 #### Choose a window system.
1378
1379 AC_PATH_X
1380 if test "$no_x" = yes; then
1381   window_system=none
1382 else
1383   window_system=x11
1384 fi
1385
1386 ## Workaround for bug in autoconf <= 2.62.
1387 ## http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01551.html
1388 ## No need to do anything special for these standard directories.
1389 if test -n "${x_libraries}" && test x"${x_libraries}" != xNONE; then
1390
1391    x_libraries=`echo :${x_libraries}: | sed -e 's|:/usr/lib64:|:|g' -e 's|:/lib64:|:|g' -e 's|^:||' -e 's|:$||'`
1392
1393 fi
1394
1395 LD_SWITCH_X_SITE_AUX=
1396 LD_SWITCH_X_SITE_AUX_RPATH=
1397 if test "${x_libraries}" != NONE; then
1398   if test -n "${x_libraries}"; then
1399     LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1400     LD_SWITCH_X_SITE_AUX=-R`echo ${x_libraries} | sed -e "s/:/ -R/g"`
1401     LD_SWITCH_X_SITE_AUX_RPATH=`echo ${LD_SWITCH_X_SITE_AUX} | sed -e 's/-R/-Wl,-rpath,/'`
1402   fi
1403   x_default_search_path=""
1404   x_search_path=${x_libraries}
1405   if test -z "${x_search_path}"; then
1406     x_search_path=/usr/lib
1407   fi
1408   for x_library in `echo ${x_search_path}: | \
1409                     sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1410     x_search_path="\
1411 ${x_library}/X11/%L/%T/%N%C%S:\
1412 ${x_library}/X11/%l/%T/%N%C%S:\
1413 ${x_library}/X11/%T/%N%C%S:\
1414 ${x_library}/X11/%L/%T/%N%S:\
1415 ${x_library}/X11/%l/%T/%N%S:\
1416 ${x_library}/X11/%T/%N%S"
1417     if test x"${x_default_search_path}" = x; then
1418       x_default_search_path=${x_search_path}
1419     else
1420       x_default_search_path="${x_search_path}:${x_default_search_path}"
1421     fi
1422   done
1423 fi
1424 AC_SUBST(LD_SWITCH_X_SITE_AUX)
1425 AC_SUBST(LD_SWITCH_X_SITE_AUX_RPATH)
1426
1427 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1428   C_SWITCH_X_SITE=-I`echo ${x_includes} | sed -e "s/:/ -I/g"`
1429 fi
1430
1431 if test x"${x_includes}" = x; then
1432   bitmapdir=/usr/include/X11/bitmaps
1433 else
1434   # accumulate include directories that have X11 bitmap subdirectories
1435   bmd_acc="dummyval"
1436   for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1437     if test -d "${bmd}/X11/bitmaps"; then
1438       bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1439     fi
1440     if test -d "${bmd}/bitmaps"; then
1441       bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1442     fi
1443   done
1444   if test ${bmd_acc} != "dummyval"; then
1445     bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1446   fi
1447 fi
1448
1449 HAVE_NS=no
1450 NS_IMPL_COCOA=no
1451 NS_IMPL_GNUSTEP=no
1452 tmp_CPPFLAGS="$CPPFLAGS"
1453 tmp_CFLAGS="$CFLAGS"
1454 CPPFLAGS="$CPPFLAGS -x objective-c"
1455 CFLAGS="$CFLAGS -x objective-c"
1456 TEMACS_LDFLAGS2="\${LDFLAGS}"
1457 dnl I don't think it's especially important, but src/Makefile.in
1458 dnl (now the only user of ns_appdir) used to go to the trouble of adding a
1459 dnl trailing "/" to it, so now we do it here.
1460 if test "${with_ns}" != no; then
1461   if test "${opsys}" = darwin; then
1462      NS_IMPL_COCOA=yes
1463      ns_appdir=`pwd`/nextstep/Emacs.app
1464      ns_appbindir=${ns_appdir}/Contents/MacOS/
1465      ns_appresdir=${ns_appdir}/Contents/Resources
1466      ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base
1467   elif test -f $GNUSTEP_CONFIG_FILE; then
1468      NS_IMPL_GNUSTEP=yes
1469      ns_appdir=`pwd`/nextstep/Emacs.app
1470      ns_appbindir=${ns_appdir}/
1471      ns_appresdir=${ns_appdir}/Resources
1472      ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base
1473      dnl FIXME sourcing this several times in subshells seems inefficient.
1474      GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1475      GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1476      dnl I seemed to need these as well with GNUstep-startup 0.25.
1477      GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1478      GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1479      test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1480        GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1481      test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1482        GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1483      CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1484      CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1485      LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1486      LIB_STANDARD=
1487      START_FILES=
1488      TEMACS_LDFLAGS2=
1489   fi
1490   AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1491                   [AC_MSG_ERROR([`--with-ns' was specified, but the include
1492   files are missing or cannot be compiled.])])
1493   NS_HAVE_NSINTEGER=yes
1494   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1495                                      [NSInteger i;])],
1496                     ns_have_nsinteger=yes,
1497                     ns_have_nsinteger=no)
1498   if test $ns_have_nsinteger = no; then
1499     NS_HAVE_NSINTEGER=no
1500   fi
1501 fi
1502 AC_SUBST(TEMACS_LDFLAGS2)
1503
1504 ns_frag=/dev/null
1505 NS_OBJ=
1506 NS_OBJC_OBJ=
1507 NS_SUPPORT=
1508 if test "${HAVE_NS}" = yes; then
1509   window_system=nextstep
1510   with_xft=no
1511   # set up packaging dirs
1512   exec_prefix=${ns_appbindir}
1513   libexecdir=${ns_appbindir}/libexec
1514   if test "${EN_NS_SELF_CONTAINED}" = yes; then
1515      prefix=${ns_appresdir}
1516   fi
1517   ns_frag=$srcdir/src/ns.mk
1518   NS_OBJ="fontset.o fringe.o image.o"
1519   NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1520   NS_SUPPORT="\${lispsource}/emacs-lisp/easymenu.elc \${lispsource}/term/ns-win.elc"
1521 fi
1522 CFLAGS="$tmp_CFLAGS"
1523 CPPFLAGS="$tmp_CPPFLAGS"
1524 AC_SUBST(NS_OBJ)
1525 AC_SUBST(NS_OBJC_OBJ)
1526 AC_SUBST(NS_SUPPORT)
1527 AC_SUBST(LIB_STANDARD)
1528 AC_SUBST_FILE(ns_frag)
1529
1530 case "${window_system}" in
1531   x11 )
1532     HAVE_X_WINDOWS=yes
1533     HAVE_X11=yes
1534     case "${with_x_toolkit}" in
1535       athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1536       motif ) USE_X_TOOLKIT=MOTIF ;;
1537       gtk ) with_gtk=yes
1538 dnl Dont set this for GTK.  A lot of tests below assumes Xt when
1539 dnl USE_X_TOOLKIT is set.
1540             USE_X_TOOLKIT=none ;;
1541       gtk3 ) with_gtk3=yes
1542              USE_X_TOOLKIT=none ;;
1543       no ) USE_X_TOOLKIT=none ;;
1544 dnl If user did not say whether to use a toolkit, make this decision later:
1545 dnl use the toolkit if we have gtk, or X11R5 or newer.
1546       * ) USE_X_TOOLKIT=maybe ;;
1547     esac
1548   ;;
1549   nextstep | none )
1550     HAVE_X_WINDOWS=no
1551     HAVE_X11=no
1552     USE_X_TOOLKIT=none
1553   ;;
1554 esac
1555
1556 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1557    AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1558    if test "$HAVE_XSERVER" = true ||
1559       test -n "$DISPLAY" ||
1560       test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1561         AC_MSG_ERROR([You seem to be running X, but no X development libraries
1562 were found.  You should install the relevant development files for X
1563 and for the toolkit you want, such as Gtk+, Lesstif or Motif.  Also make
1564 sure you have development files for image handling, i.e.
1565 tiff, gif, jpeg, png and xpm.
1566 If you are sure you want Emacs compiled without X window support, pass
1567   --without-x
1568 to configure.])
1569    fi
1570 fi
1571
1572 ### If we're using X11, we should use the X menu package.
1573 HAVE_MENUS=no
1574 case ${HAVE_X11} in
1575   yes ) HAVE_MENUS=yes ;;
1576 esac
1577
1578 # Do the opsystem or machine files prohibit the use of the GNU malloc?
1579 # Assume not, until told otherwise.
1580 GNU_MALLOC=yes
1581 doug_lea_malloc=yes
1582 AC_CHECK_FUNC(malloc_get_state, ,doug_lea_malloc=no)
1583 AC_CHECK_FUNC(malloc_set_state, ,doug_lea_malloc=no)
1584 AC_CACHE_CHECK(whether __after_morecore_hook exists,
1585                emacs_cv_var___after_morecore_hook,
1586 [AC_TRY_LINK([extern void (* __after_morecore_hook)();],[__after_morecore_hook = 0],
1587   emacs_cv_var___after_morecore_hook=yes,
1588   emacs_cv_var___after_morecore_hook=no)])
1589 if test $emacs_cv_var___after_morecore_hook = no; then
1590   doug_lea_malloc=no
1591 fi
1592
1593
1594 dnl See comments in aix4-2.h about maybe using system malloc there.
1595 system_malloc=no
1596 case "$opsys" in
1597   ## darwin ld insists on the use of malloc routines in the System framework.
1598   darwin|sol2-10) system_malloc=yes ;;
1599 esac
1600
1601 if test "${system_malloc}" = "yes"; then
1602   AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1603   GNU_MALLOC=no
1604   GNU_MALLOC_reason="
1605     (The GNU allocators don't work with this system configuration.)"
1606   GMALLOC_OBJ=
1607   VMLIMIT_OBJ=
1608 else
1609   test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1610   VMLIMIT_OBJ=vm-limit.o
1611 fi
1612 AC_SUBST(GMALLOC_OBJ)
1613 AC_SUBST(VMLIMIT_OBJ)
1614
1615 if test "$doug_lea_malloc" = "yes" ; then
1616   if test "$GNU_MALLOC" = yes ; then
1617     GNU_MALLOC_reason="
1618       (Using Doug Lea's new malloc from the GNU C Library.)"
1619   fi
1620   AC_DEFINE(DOUG_LEA_MALLOC, 1,
1621             [Define to 1 if you are using the GNU C Library.])
1622
1623   ## Use mmap directly for allocating larger buffers.
1624   ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1625   ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1626   ## Does the AC_FUNC_MMAP test below make this check unecessary?
1627   case "$opsys" in
1628     gnu*) REL_ALLOC=no ;;
1629   esac
1630 fi
1631
1632 if test x"${REL_ALLOC}" = x; then
1633   REL_ALLOC=${GNU_MALLOC}
1634 fi
1635
1636 use_mmap_for_buffers=no
1637 case "$opsys" in
1638   freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1639 esac
1640
1641 AC_FUNC_MMAP
1642 if test $use_mmap_for_buffers = yes; then
1643   AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1644   REL_ALLOC=no
1645 fi
1646
1647 LIBS="$LIBS_SYSTEM $LIBS"
1648
1649 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1650 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1651 AC_CHECK_LIB(dnet, dnet_ntoa)
1652 dnl This causes -lresolv to get used in subsequent tests,
1653 dnl which causes failures on some systems such as HPUX 9.
1654 dnl AC_CHECK_LIB(resolv, gethostbyname)
1655
1656 dnl FIXME replace main with a function we actually want from this library.
1657 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1658
1659 AC_CHECK_LIB(pthreads, cma_open)
1660
1661 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1662 ## HAVE_LIBPTHREADS.  That was not defined earlier in configure when
1663 ## the system file was sourced.  Hence the value of LIBS_SYSTEM
1664 ## added to LIBS in configure would never contain the pthreads part,
1665 ## but the value used in Makefiles might.  FIXME?
1666 ##
1667 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1668 ## be harmless on older versions of X where it happens to exist.
1669 test "$opsys" = "aix4-2" && \
1670   test $ac_cv_lib_pthreads_cma_open = yes && \
1671   LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1672
1673 dnl Check for need for bigtoc support on IBM AIX
1674
1675 case ${host_os} in
1676 aix*)
1677   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1678     case $GCC in
1679     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1680     *) gdb_cv_bigtoc=-bbigtoc ;;
1681     esac
1682
1683     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1684     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1685   ])
1686   ;;
1687 esac
1688
1689 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1690 # used for the tests that follow.  We set them back to REAL_CFLAGS and
1691 # REAL_CPPFLAGS later on.
1692
1693 REAL_CFLAGS="$CFLAGS"
1694 REAL_CPPFLAGS="$CPPFLAGS"
1695
1696 if test "${HAVE_X11}" = "yes"; then
1697   DEFS="$C_SWITCH_X_SITE $DEFS"
1698   LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1699   LIBS="-lX11 $LIBS"
1700   CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1701   CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1702
1703   # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1704   # This is handled by LD_SWITCH_X_SITE_AUX during the real build,
1705   # but it's more convenient here to set LD_RUN_PATH
1706   # since this also works on hosts that don't understand LD_SWITCH_X_SITE_AUX.
1707   if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1708     LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1709     export LD_RUN_PATH
1710   fi
1711
1712   if test "${opsys}" = "gnu-linux"; then
1713     AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1714     AC_TRY_LINK([],
1715      [XOpenDisplay ("foo");],
1716      [xlinux_first_failure=no],
1717      [xlinux_first_failure=yes])
1718     if test "${xlinux_first_failure}" = "yes"; then
1719       OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1720       OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1721       OLD_CPPFLAGS="$CPPFLAGS"
1722       OLD_LIBS="$LIBS"
1723       LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1724       C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1725       CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1726       LIBS="$LIBS -b i486-linuxaout"
1727       AC_TRY_LINK([],
1728        [XOpenDisplay ("foo");],
1729        [xlinux_second_failure=no],
1730        [xlinux_second_failure=yes])
1731       if test "${xlinux_second_failure}" = "yes"; then
1732         # If we get the same failure with -b, there is no use adding -b.
1733         # So take it out.  This plays safe.
1734         LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1735         C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1736         CPPFLAGS="$OLD_CPPFLAGS"
1737         LIBS="$OLD_LIBS"
1738         AC_MSG_RESULT(no)
1739       else
1740         AC_MSG_RESULT(yes)
1741       fi
1742     else
1743       AC_MSG_RESULT(no)
1744     fi
1745   fi
1746
1747   # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1748   # header files included from there.
1749   AC_MSG_CHECKING(for Xkb)
1750   AC_TRY_LINK([#include <X11/Xlib.h>
1751 #include <X11/XKBlib.h>],
1752         [XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);],
1753         emacs_xkb=yes, emacs_xkb=no)
1754   AC_MSG_RESULT($emacs_xkb)
1755   if test $emacs_xkb = yes; then
1756     AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1757   fi
1758
1759   AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1760 XScreenNumberOfScreen XSetWMProtocols)
1761 fi
1762
1763 if test "${window_system}" = "x11"; then
1764   AC_MSG_CHECKING(X11 version 6)
1765   AC_CACHE_VAL(emacs_cv_x11_version_6,
1766   [AC_TRY_LINK([#include <X11/Xlib.h>],
1767 [#if XlibSpecificationRelease < 6
1768 fail;
1769 #endif
1770 ], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1771   if test $emacs_cv_x11_version_6 = yes; then
1772     AC_MSG_RESULT(6 or newer)
1773     AC_DEFINE(HAVE_X11R6, 1,
1774               [Define to 1 if you have the X11R6 or newer version of Xlib.])
1775     AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1776     ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1777     ## XIM support.
1778     case "$opsys" in
1779       sol2-*) : ;;
1780       *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1781            [Define if you have usable X11R6-style XIM support.])
1782          ;;
1783     esac
1784   else
1785     AC_MSG_RESULT(before 6)
1786   fi
1787 fi
1788
1789
1790 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1791 HAVE_RSVG=no
1792 if test "${HAVE_X11}" = "yes" || test "${NS_IMPL_GNUSTEP}" = "yes"; then
1793   if test "${with_rsvg}" != "no"; then
1794     RSVG_REQUIRED=2.11.0
1795     RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1796
1797     PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1798     AC_SUBST(RSVG_CFLAGS)
1799     AC_SUBST(RSVG_LIBS)
1800
1801     if test $HAVE_RSVG = yes; then
1802       AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1803       CFLAGS="$CFLAGS $RSVG_CFLAGS"
1804       LIBS="$RSVG_LIBS $LIBS"
1805     fi
1806   fi
1807 fi
1808
1809 HAVE_IMAGEMAGICK=no
1810 if test "${HAVE_X11}" = "yes"; then
1811   if test "${with_imagemagick}" != "no"; then
1812     IMAGEMAGICK_MODULE="Wand"
1813     PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1814     AC_SUBST(IMAGEMAGICK_CFLAGS)
1815     AC_SUBST(IMAGEMAGICK_LIBS)
1816
1817     if test $HAVE_IMAGEMAGICK = yes; then
1818       AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1819       CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1820       LIBS="$IMAGEMAGICK_LIBS $LIBS"
1821       AC_CHECK_FUNCS(MagickExportImagePixels)
1822     fi
1823   fi
1824 fi
1825
1826
1827 HAVE_GTK=no
1828 if test "${with_gtk3}" = "yes"; then
1829   GLIB_REQUIRED=2.28
1830   GTK_REQUIRED=3.0
1831   GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1832
1833   dnl Checks for libraries.
1834   PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1835   if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1836      AC_MSG_ERROR($GTK_PKG_ERRORS)
1837   fi
1838   AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1839 fi
1840
1841 if test "$pkg_check_gtk" != "yes"; then
1842   HAVE_GTK=no
1843 if test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1844   GLIB_REQUIRED=2.6
1845   GTK_REQUIRED=2.6
1846   GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1847
1848   dnl Checks for libraries.
1849   PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1850   if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1851      AC_MSG_ERROR($GTK_PKG_ERRORS)
1852   fi
1853 fi
1854 fi
1855
1856 GTK_OBJ=
1857 if test x"$pkg_check_gtk" = xyes; then
1858
1859   AC_SUBST(GTK_CFLAGS)
1860   AC_SUBST(GTK_LIBS)
1861   C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1862   CFLAGS="$CFLAGS $GTK_CFLAGS"
1863   LIBS="$GTK_LIBS $LIBS"
1864   dnl Try to compile a simple GTK program.
1865   GTK_COMPILES=no
1866   AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1867   if test "${GTK_COMPILES}" != "yes"; then
1868     if test "$USE_X_TOOLKIT" != "maybe"; then
1869       AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log.  Maybe some x11-devel files missing?]);
1870     fi
1871   else
1872     HAVE_GTK=yes
1873     AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1874     GTK_OBJ=gtkutil.o
1875     USE_X_TOOLKIT=none
1876     if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1877       :
1878     else
1879       AC_MSG_WARN([[Your version of Gtk+ will have problems with
1880        closing open displays.  This is no problem if you just use
1881        one display, but if you use more than one and close one of them
1882        Emacs may crash.]])
1883       sleep 3
1884     fi
1885   fi
1886
1887 fi
1888 AC_SUBST(GTK_OBJ)
1889
1890
1891 if test "${HAVE_GTK}" = "yes"; then
1892
1893   dnl  GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1894   dnl  a lot if #ifdef:s, say we have toolkit scrollbars.
1895   if test "$with_toolkit_scroll_bars" != no; then
1896     with_toolkit_scroll_bars=yes
1897   fi
1898
1899   dnl  Check if we have the old file selection dialog declared and
1900   dnl  in the link library.  In 2.x it may be in the library,
1901   dnl  but not declared if deprecated featured has been selected out.
1902   dnl  AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1903   HAVE_GTK_FILE_SELECTION=no
1904   AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1905                    HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1906 #include <gtk/gtk.h>])
1907   if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1908     AC_CHECK_FUNCS(gtk_file_selection_new)
1909   fi
1910
1911   dnl Check if pthreads are available.  Emacs only needs this when using
1912   dnl gtk_file_chooser under Gnome.
1913     HAVE_GTK_AND_PTHREAD=no
1914     AC_CHECK_HEADERS(pthread.h)
1915     if test "$ac_cv_header_pthread_h"; then
1916       AC_CHECK_LIB(pthread, pthread_self, HAVE_GTK_AND_PTHREAD=yes)
1917     fi
1918     if test "$HAVE_GTK_AND_PTHREAD" = yes; then
1919       case "${canonical}" in
1920         *-hpux*) ;;
1921         *) GTK_LIBS="$GTK_LIBS -lpthread" ;;
1922       esac
1923       AC_DEFINE(HAVE_GTK_AND_PTHREAD, 1,
1924                [Define to 1 if you have GTK and pthread (-lpthread).])
1925     fi
1926
1927   dnl Check for functions introduced in 2.14 and later.
1928   AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
1929                  gtk_dialog_get_action_area gtk_widget_get_sensitive \
1930                  gtk_widget_get_mapped gtk_adjustment_get_page_size \
1931                  gtk_orientable_set_orientation)
1932
1933 fi
1934
1935 dnl D-Bus has been tested under GNU/Linux only.  Must be adapted for
1936 dnl other platforms.  Support for higher D-Bus versions than 1.0 is
1937 dnl also not configured.
1938 HAVE_DBUS=no
1939 DBUS_OBJ=
1940 if test "${with_dbus}" = "yes"; then
1941    PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
1942    if test "$HAVE_DBUS" = yes; then
1943      LIBS="$LIBS $DBUS_LIBS"
1944      AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
1945      AC_CHECK_FUNCS([dbus_watch_get_unix_fd])
1946      DBUS_OBJ=dbusbind.o
1947    fi
1948 fi
1949 AC_SUBST(DBUS_OBJ)
1950
1951 dnl GConf has been tested under GNU/Linux only.
1952 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
1953 HAVE_GCONF=no
1954 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
1955    PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
1956    if test "$HAVE_GCONF" = yes; then
1957       AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
1958       dnl Newer GConf doesn't link with g_objects, so this is not defined.
1959       AC_CHECK_FUNCS([g_type_init])
1960    fi
1961 fi
1962
1963 dnl SELinux is available for GNU/Linux only.
1964 HAVE_LIBSELINUX=no
1965 LIBSELINUX_LIBS=
1966 if test "${with_selinux}" = "yes"; then
1967    AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
1968    if test "$HAVE_LIBSELINUX" = yes; then
1969       AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
1970       LIBSELINUX_LIBS=-lselinux
1971    fi
1972 fi
1973 AC_SUBST(LIBSELINUX_LIBS)
1974
1975 HAVE_GNUTLS=no
1976 if test "${with_gnutls}" = "yes" ; then
1977   PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.2.4], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
1978   if test "${HAVE_GNUTLS}" = "yes"; then
1979     AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
1980   fi
1981 fi
1982 AC_SUBST(LIBGNUTLS_LIBS)
1983 AC_SUBST(LIBGNUTLS_CFLAGS)
1984
1985 dnl Do not put whitespace before the #include statements below.
1986 dnl Older compilers (eg sunos4 cc) choke on it.
1987 HAVE_XAW3D=no
1988 LUCID_LIBW=
1989 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
1990   if test "$with_xaw3d" != no; then
1991     AC_MSG_CHECKING(for xaw3d)
1992     AC_CACHE_VAL(emacs_cv_xaw3d,
1993     [AC_TRY_LINK([
1994 #include <X11/Intrinsic.h>
1995 #include <X11/Xaw3d/Simple.h>],
1996       [],
1997       [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
1998                     emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
1999       emacs_cv_xaw3d=no)])
2000   else
2001     emacs_cv_xaw3d=no
2002   fi
2003   if test $emacs_cv_xaw3d = yes; then
2004     AC_MSG_RESULT([yes; using Lucid toolkit])
2005     USE_X_TOOLKIT=LUCID
2006     HAVE_XAW3D=yes
2007     LUCID_LIBW=-lXaw3d
2008     AC_DEFINE(HAVE_XAW3D, 1,
2009               [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2010   else
2011     AC_MSG_RESULT(no)
2012     AC_MSG_CHECKING(for libXaw)
2013     AC_CACHE_VAL(emacs_cv_xaw,
2014     [AC_TRY_LINK([
2015 #include <X11/Intrinsic.h>
2016 #include <X11/Xaw/Simple.h>],
2017       [],
2018       emacs_cv_xaw=yes,
2019       emacs_cv_xaw=no)])
2020     if test $emacs_cv_xaw = yes; then
2021       AC_MSG_RESULT([yes; using Lucid toolkit])
2022       USE_X_TOOLKIT=LUCID
2023       LUCID_LIBW=-lXaw
2024     elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2025       AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2026     else
2027       AC_MSG_RESULT([no; do not use toolkit by default])
2028       USE_X_TOOLKIT=none
2029     fi
2030   fi
2031 fi
2032
2033 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2034
2035 LIBXTR6=
2036 if test "${USE_X_TOOLKIT}" != "none"; then
2037   AC_MSG_CHECKING(X11 toolkit version)
2038   AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2039   [AC_TRY_LINK([#include <X11/Intrinsic.h>],
2040 [#if XtSpecificationRelease < 6
2041 fail;
2042 #endif
2043 ], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2044   HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2045   if test $emacs_cv_x11_toolkit_version_6 = yes; then
2046     AC_MSG_RESULT(6 or newer)
2047     AC_DEFINE(HAVE_X11XTR6, 1,
2048               [Define to 1 if you have the X11R6 or newer version of Xt.])
2049     LIBXTR6="-lSM -lICE"
2050     case "$opsys" in
2051       ## Use libw.a along with X11R6 Xt.
2052       unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2053     esac
2054   else
2055     AC_MSG_RESULT(before 6)
2056   fi
2057
2058 dnl If using toolkit, check whether libXmu.a exists.
2059 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2060   OLDLIBS="$LIBS"
2061   if test x$HAVE_X11XTR6 = xyes; then
2062     LIBS="-lXt -lSM -lICE $LIBS"
2063   else
2064     LIBS="-lXt $LIBS"
2065   fi
2066   AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2067   test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2068 fi
2069 AC_SUBST(LIBXTR6)
2070
2071 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2072 dnl Why not just test for libxmu in the normal way?
2073 LIBXMU=-lXmu
2074 case $opsys in
2075   ## These systems don't supply Xmu.
2076   hpux* | aix4-2 )
2077     test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2078     ;;
2079 esac
2080 AC_SUBST(LIBXMU)
2081
2082 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2083 if test "${HAVE_X11}" = "yes"; then
2084   if test "${USE_X_TOOLKIT}" != "none"; then
2085     AC_CHECK_LIB(Xext, XShapeQueryExtension)
2086   fi
2087 fi
2088
2089 LIBXP=
2090 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2091   AC_CACHE_CHECK(for Motif version 2.1, emacs_cv_motif_version_2_1,
2092   [AC_TRY_COMPILE([#include <Xm/Xm.h>],
2093     [#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2094 int x = 5;
2095 #else
2096 Motif version prior to 2.1.
2097 #endif],
2098     emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2099   if test $emacs_cv_motif_version_2_1 = yes; then
2100     AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2101   else
2102     AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2103     # We put this in CFLAGS temporarily to precede other -I options
2104     # that might be in CFLAGS temporarily.
2105     # We put this in CPPFLAGS where it precedes the other -I options.
2106     OLD_CPPFLAGS=$CPPFLAGS
2107     OLD_CFLAGS=$CFLAGS
2108     CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2109     CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2110     [AC_TRY_COMPILE([#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>],
2111       [int x = 5;],
2112       emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2113     if test $emacs_cv_lesstif = yes; then
2114       # Make sure this -I option remains in CPPFLAGS after it is set
2115       # back to REAL_CPPFLAGS.
2116       # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2117       # have those other -I options anyway.  Ultimately, having this
2118       # directory ultimately in CPPFLAGS will be enough.
2119       REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2120       LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2121     else
2122       CFLAGS=$OLD_CFLAGS
2123       CPPFLAGS=$OLD_CPPFLAGS
2124     fi
2125   fi
2126 fi
2127
2128 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2129 dnl using Motif or Xaw3d is available, and unless
2130 dnl --with-toolkit-scroll-bars=no was specified.
2131
2132 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2133             [Define to 1 if we should use toolkit scroll bars.])dnl
2134 USE_TOOLKIT_SCROLL_BARS=no
2135 if test "${with_toolkit_scroll_bars}" != "no"; then
2136   if test "${USE_X_TOOLKIT}" != "none"; then
2137     if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2138       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2139       HAVE_XAW3D=no
2140       USE_TOOLKIT_SCROLL_BARS=yes
2141     elif test "${HAVE_XAW3D}" = "yes"; then
2142       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2143       USE_TOOLKIT_SCROLL_BARS=yes
2144     fi
2145   elif test "${HAVE_GTK}" = "yes"; then
2146     AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2147     USE_TOOLKIT_SCROLL_BARS=yes
2148   elif test "${HAVE_NS}" = "yes"; then
2149     AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2150     USE_TOOLKIT_SCROLL_BARS=yes
2151   fi
2152 fi
2153
2154 dnl See if XIM is available.
2155 AC_TRY_COMPILE([
2156           #include <X11/Xlib.h>
2157           #include <X11/Xresource.h>],
2158          [XIMProc  callback;],
2159          [HAVE_XIM=yes
2160          AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2161          HAVE_XIM=no)
2162
2163 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2164
2165 if test "${with_xim}" != "no"; then
2166   AC_DEFINE(USE_XIM, 1,
2167             [Define to 1 if we should use XIM, if it is available.])
2168 fi
2169
2170
2171 if test "${HAVE_XIM}" != "no"; then
2172   late_CFLAGS=$CFLAGS
2173   if test "$GCC" = yes; then
2174     CFLAGS="$CFLAGS --pedantic-errors"
2175   fi
2176   AC_TRY_COMPILE([
2177 #include <X11/Xlib.h>
2178 #include <X11/Xresource.h>],
2179 [Display *display;
2180 XrmDatabase db;
2181 char *res_name;
2182 char *res_class;
2183 XIMProc  callback;
2184 XPointer *client_data;
2185 #ifndef __GNUC__
2186 /* If we're not using GCC, it's probably not XFree86, and this is
2187    probably right, but we can't use something like --pedantic-errors.  */
2188 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2189                                            char*, XIMProc, XPointer*);
2190 #endif
2191 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2192    client_data);],
2193     [emacs_cv_arg6_star=yes])
2194   AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2195          [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2196 either XPointer or XPointer*.])dnl
2197   if test "$emacs_cv_arg6_star" = yes; then
2198     AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2199   else
2200     AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2201   fi
2202   CFLAGS=$late_CFLAGS
2203 fi
2204
2205 ### Start of font-backend (under any platform) section.
2206 # (nothing here yet -- this is a placeholder)
2207 ### End of font-backend (under any platform) section.
2208
2209 ### Start of font-backend (under X11) section.
2210 if test "${HAVE_X11}" = "yes"; then
2211    PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2212
2213    ## Use -lXft if available, unless `--with-xft=no'.
2214    HAVE_XFT=maybe
2215     if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2216       with_xft="no";
2217     fi
2218     if test "x${with_xft}" != "xno"; then
2219
2220       PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2221       ## Because xftfont.c uses XRenderQueryExtension, we also
2222       ## need to link to -lXrender.
2223       HAVE_XRENDER=no
2224       AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2225       if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2226         OLD_CPPFLAGS="$CPPFLAGS"
2227         OLD_CFLAGS="$CFLAGS"
2228         OLD_LIBS="$LIBS"
2229         CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2230         CFLAGS="$CFLAGS $XFT_CFLAGS"
2231         XFT_LIBS="-lXrender $XFT_LIBS"
2232         LIBS="$XFT_LIBS $LIBS"
2233         AC_CHECK_HEADER(X11/Xft/Xft.h,
2234           AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2235
2236         if test "${HAVE_XFT}" = "yes"; then
2237           AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2238             AC_SUBST(XFT_LIBS)
2239           C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2240         else
2241           CPPFLAGS="$OLD_CPPFLAGS"
2242           CFLAGS="$OLD_CFLAGS"
2243           LIBS="$OLD_LIBS"
2244         fi                        # "${HAVE_XFT}" = "yes"
2245       fi                          # "$HAVE_XFT" != no
2246     fi                            # "x${with_xft}" != "xno"
2247
2248     ## We used to allow building with FreeType and without Xft.
2249     ## However, the ftx font backend driver is not in good shape.
2250     if test "$HAVE_XFT" != "yes"; then
2251        dnl For the "Does Emacs use" message at the end.
2252        HAVE_XFT=no
2253        HAVE_FREETYPE=no
2254     else
2255        dnl Strict linkers fail with
2256        dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2257        dnl if -lfreetype is not specified.
2258        dnl The following is needed to set FREETYPE_LIBS.
2259        PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2260                          HAVE_FREETYPE=no)
2261
2262        test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2263     fi
2264
2265     HAVE_LIBOTF=no
2266     if test "${HAVE_FREETYPE}" = "yes"; then
2267       AC_DEFINE(HAVE_FREETYPE, 1,
2268                 [Define to 1 if using the freetype and fontconfig libraries.])
2269       if test "${with_libotf}" != "no"; then
2270         PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2271                           HAVE_LIBOTF=no)
2272         if test "$HAVE_LIBOTF" = "yes"; then
2273           AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2274           AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2275                        HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2276                        HAVE_OTF_GET_VARIATION_GLYPHS=no)
2277           if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2278             AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2279                       [Define to 1 if libotf has OTF_get_variation_glyphs.])
2280           fi
2281         fi
2282       fi
2283     dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2284     dnl Does the new font backend require it, or can it work without it?
2285     fi
2286
2287     HAVE_M17N_FLT=no
2288     if test "${HAVE_LIBOTF}" = yes; then
2289       if test "${with_m17n_flt}" != "no"; then
2290         PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2291         if test "$HAVE_M17N_FLT" = "yes"; then
2292           AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2293         fi
2294       fi
2295     fi
2296 else
2297     HAVE_XFT=no
2298     HAVE_FREETYPE=no
2299     HAVE_LIBOTF=no
2300     HAVE_M17N_FLT=no
2301 fi
2302
2303 ### End of font-backend (under X11) section.
2304
2305 AC_SUBST(FREETYPE_CFLAGS)
2306 AC_SUBST(FREETYPE_LIBS)
2307 AC_SUBST(FONTCONFIG_CFLAGS)
2308 AC_SUBST(FONTCONFIG_LIBS)
2309 AC_SUBST(LIBOTF_CFLAGS)
2310 AC_SUBST(LIBOTF_LIBS)
2311 AC_SUBST(M17N_FLT_CFLAGS)
2312 AC_SUBST(M17N_FLT_LIBS)
2313
2314 ### Use -lXpm if available, unless `--with-xpm=no'.
2315 HAVE_XPM=no
2316 LIBXPM=
2317 if test "${HAVE_X11}" = "yes"; then
2318   if test "${with_xpm}" != "no"; then
2319     AC_CHECK_HEADER(X11/xpm.h,
2320       [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2321     if test "${HAVE_XPM}" = "yes"; then
2322       AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2323       AC_EGREP_CPP(no_return_alloc_pixels,
2324       [#include "X11/xpm.h"
2325 #ifndef XpmReturnAllocPixels
2326 no_return_alloc_pixels
2327 #endif
2328       ], HAVE_XPM=no, HAVE_XPM=yes)
2329
2330       if test "${HAVE_XPM}" = "yes"; then
2331         AC_MSG_RESULT(yes)
2332       else
2333         AC_MSG_RESULT(no)
2334       fi
2335     fi
2336   fi
2337
2338   if test "${HAVE_XPM}" = "yes"; then
2339     AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm libary (-lXpm).])
2340     LIBXPM=-lXpm
2341   fi
2342 fi
2343 AC_SUBST(LIBXPM)
2344
2345 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2346 HAVE_JPEG=no
2347 LIBJPEG=
2348 if test "${HAVE_X11}" = "yes"; then
2349   if test "${with_jpeg}" != "no"; then
2350     dnl Checking for jpeglib.h can lose because of a redefinition of
2351     dnl  HAVE_STDLIB_H.
2352     AC_CHECK_HEADER(jerror.h,
2353       [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2354   fi
2355
2356   AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2357   if test "${HAVE_JPEG}" = "yes"; then
2358     AC_DEFINE(HAVE_JPEG)
2359     AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2360         [#include <jpeglib.h>
2361          version=JPEG_LIB_VERSION
2362 ],
2363         [AC_DEFINE(HAVE_JPEG)],
2364         [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2365         HAVE_JPEG=no])
2366   fi
2367   if test "${HAVE_JPEG}" = "yes"; then
2368     LIBJPEG=-ljpeg
2369   fi
2370 fi
2371 AC_SUBST(LIBJPEG)
2372
2373 ### Use -lpng if available, unless `--with-png=no'.
2374 HAVE_PNG=no
2375 LIBPNG=
2376 if test "${HAVE_X11}" = "yes"; then
2377   if test "${with_png}" != "no"; then
2378     # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2379     # in /usr/include/libpng.
2380     AC_CHECK_HEADERS(png.h libpng/png.h)
2381     if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2382       AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2383     fi
2384   fi
2385
2386   if test "${HAVE_PNG}" = "yes"; then
2387     AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2388     LIBPNG="-lpng -lz -lm"
2389   fi
2390 fi
2391 AC_SUBST(LIBPNG)
2392
2393 ### Use -ltiff if available, unless `--with-tiff=no'.
2394 HAVE_TIFF=no
2395 LIBTIFF=
2396 if test "${HAVE_X11}" = "yes"; then
2397   if test "${with_tiff}" != "no"; then
2398     AC_CHECK_HEADER(tiffio.h,
2399       [tifflibs="-lz -lm"
2400       # At least one tiff package requires the jpeg library.
2401       if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2402       AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2403   fi
2404
2405   if test "${HAVE_TIFF}" = "yes"; then
2406     AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2407     dnl FIXME -lz -lm, as per libpng?
2408     LIBTIFF=-ltiff
2409   fi
2410 fi
2411 AC_SUBST(LIBTIFF)
2412
2413 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2414 HAVE_GIF=no
2415 LIBGIF=
2416 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2417   AC_CHECK_HEADER(gif_lib.h,
2418 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2419 # Earlier versions can crash Emacs.
2420     [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2421
2422   if test "$HAVE_GIF" = yes; then
2423     LIBGIF=-lgif
2424   elif test "$HAVE_GIF" = maybe; then
2425 # If gif_lib.h but no libgif, try libungif.
2426     AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2427     test "$HAVE_GIF" = yes && LIBGIF=-lungif
2428   fi
2429
2430   if test "${HAVE_GIF}" = "yes"; then
2431     AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2432   fi
2433 fi
2434 AC_SUBST(LIBGIF)
2435
2436 dnl Check for required libraries.
2437 if test "${HAVE_X11}" = "yes"; then
2438   MISSING=""
2439   WITH_NO=""
2440   test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2441     MISSING="libXpm" && WITH_NO="--with-xpm=no"
2442   test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2443     MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2444   test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2445     MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2446   test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2447     MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2448   test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2449     MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2450
2451   if test "X${MISSING}" != X; then
2452     AC_MSG_ERROR([The following required libraries were not found:
2453     $MISSING
2454 Maybe some development libraries/packages are missing?
2455 If you don't want to link with them give
2456     $WITH_NO
2457 as options to configure])
2458   fi
2459 fi
2460
2461 ### Use -lgpm if available, unless `--with-gpm=no'.
2462 HAVE_GPM=no
2463 LIBGPM=
2464 MOUSE_SUPPORT=
2465 if test "${with_gpm}" != "no"; then
2466   AC_CHECK_HEADER(gpm.h,
2467     [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2468
2469   if test "${HAVE_GPM}" = "yes"; then
2470     AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2471     LIBGPM=-lgpm
2472     ## May be reset below.
2473     MOUSE_SUPPORT="\$(GPM_MOUSE_SUPPORT)"
2474   fi
2475 fi
2476 AC_SUBST(LIBGPM)
2477
2478 dnl Check for malloc/malloc.h on darwin
2479 AC_CHECK_HEADER(malloc/malloc.h, [AC_DEFINE(HAVE_MALLOC_MALLOC_H, 1, [Define to 1 if you have the <malloc/malloc.h> header file.])])
2480
2481 C_SWITCH_X_SYSTEM=
2482 ### Use NeXTstep API to implement GUI.
2483 if test "${HAVE_NS}" = "yes"; then
2484   AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2485   if test "${NS_IMPL_COCOA}" = "yes"; then
2486     AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2487     GNU_OBJC_CFLAGS=
2488   fi
2489   if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2490     AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2491     # See also .m.o rule in Makefile.in */
2492     # FIXME: are all these flags really needed?  Document here why.  */
2493     C_SWITCH_X_SYSTEM="-D_REENTRANT -fPIC -fno-strict-aliasing"
2494     GNU_OBJC_CFLAGS="-fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
2495   fi
2496   if test "${NS_HAVE_NSINTEGER}" = "yes"; then
2497     AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
2498   fi
2499   # We also have mouse menus.
2500   HAVE_MENUS=yes
2501   OTHER_FILES=ns-app
2502 fi
2503
2504
2505 ### Use session management (-lSM -lICE) if available
2506 HAVE_X_SM=no
2507 LIBXSM=
2508 if test "${HAVE_X11}" = "yes"; then
2509   AC_CHECK_HEADER(X11/SM/SMlib.h,
2510     [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2511
2512   if test "${HAVE_X_SM}" = "yes"; then
2513     AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2514     LIBXSM="-lSM -lICE"
2515     case "$LIBS" in
2516       *-lSM*) ;;
2517       *)      LIBS="$LIBXSM $LIBS" ;;
2518     esac
2519   fi
2520 fi
2521 AC_SUBST(LIBXSM)
2522
2523 ### Use libxml (-lxml2) if available
2524 if test "${with_xml2}" != "no"; then
2525   ### I'm not sure what the version number should be, so I just guessed.
2526   PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2527   if test "${HAVE_LIBXML2}" = "yes"; then
2528     LIBS="$LIBXML2_LIBS $LIBS"
2529     AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2530     if test "${HAVE_LIBXML2}" = "yes"; then
2531       AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2532     else
2533       LIBXML2_LIBS=""
2534       LIBXML2_CFLAGS=""
2535     fi
2536   fi
2537 fi
2538 AC_SUBST(LIBXML2_LIBS)
2539 AC_SUBST(LIBXML2_CFLAGS)
2540
2541 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2542 AC_CACHE_CHECK(whether netdb declares h_errno,
2543                emacs_cv_netdb_declares_h_errno,
2544 [AC_TRY_LINK([#include <netdb.h>],
2545   [return h_errno;],
2546   emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2547 if test $emacs_cv_netdb_declares_h_errno = yes; then
2548   AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2549 fi
2550
2551 AC_FUNC_ALLOCA
2552
2553 dnl src/alloca.c has been removed.  Could also check if $ALLOCA is set?
2554 dnl FIXME is there an autoconf test that does the right thing, without
2555 dnl needing to call A_M_E afterwards?
2556 if test x"$ac_cv_func_alloca_works" != xyes; then
2557    AC_MSG_ERROR( [a system implementation of alloca is required] )
2558 fi
2559
2560 # fmod, logb, and frexp are found in -lm on most systems.
2561 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
2562 AC_CHECK_LIB(m, sqrt)
2563
2564 # Check for mail-locking functions in a "mail" library.  Probably this should
2565 # have the same check as for liblockfile below.
2566 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2567 if test $have_mail = yes; then
2568   LIBS_MAIL=-lmail
2569   LIBS="$LIBS_MAIL $LIBS"
2570   AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2571 else
2572   LIBS_MAIL=
2573 fi
2574 dnl Debian, at least:
2575 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2576 if test $have_lockfile = yes; then
2577    LIBS_MAIL=-llockfile
2578    LIBS="$LIBS_MAIL $LIBS"
2579    AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2580 else
2581 # If we have the shared liblockfile, assume we must use it for mail
2582 # locking (e.g. Debian).  If we couldn't link against liblockfile
2583 # (no liblockfile.a installed), ensure that we don't need to.
2584   dnl This works for files generally, not just executables.
2585   dnl Should we look elsewhere for it?  Maybe examine /etc/ld.so.conf?
2586   AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2587                 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2588   if test $ac_cv_prog_liblockfile = yes; then
2589     AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2590 This probably means that movemail could lose mail.
2591 There may be a `development' package to install containing liblockfile.])
2592   fi
2593 fi
2594 AC_CHECK_FUNCS(touchlock)
2595 AC_CHECK_HEADERS(maillock.h)
2596 AC_SUBST(LIBS_MAIL)
2597
2598 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2599 ## interlock access to the mail spool.  The alternative is a lock file named
2600 ## /usr/spool/mail/$USER.lock.
2601 mail_lock=no
2602 case "$opsys" in
2603   aix4-2) mail_lock="lockf" ;;
2604
2605   gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2606
2607   ## On GNU/Linux systems, both methods are used by various mail programs.
2608   ## I assume most people are using newer mailers that have heard of flock.
2609   ## Change this if you need to.
2610   ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2611   ## configure gets the right answers, and that means *NOT* using flock.
2612   ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2613   ## for details.'' and then uses `#ifdef DEBIAN'.  Unfortunately the
2614   ## Debian maintainer hasn't provided a clean fix for Emacs.
2615   ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2616   ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2617   ## correct logic.  -- fx
2618   ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2619   ## liblockfile is a Free Software replacement for libmail, used on
2620   ## Debian systems and elsewhere. -rfr.
2621   gnu-*)
2622     mail_lock="flock"
2623     if test $have_mail = yes || test $have_lockfile = yes; then
2624       test $ac_cv_header_maillock_h = yes && mail_lock=no
2625     fi
2626     ;;
2627 esac
2628
2629 BLESSMAIL_TARGET=
2630 case "$mail_lock" in
2631   flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2632
2633   lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2634
2635   *) BLESSMAIL_TARGET="need-blessmail" ;;
2636 esac
2637 AC_SUBST(BLESSMAIL_TARGET)
2638
2639
2640 AC_CHECK_FUNCS(gethostname getdomainname dup2 \
2641 rename closedir mkdir rmdir sysinfo getrusage get_current_dir_name \
2642 random lrand48 logb frexp fmod rint cbrt ftime setsid \
2643 strerror fpathconf select euidaccess getpagesize tzset setlocale \
2644 utimes getrlimit setrlimit setpgid getcwd getwd shutdown getaddrinfo \
2645 __fpending mblen mbrlen mbsinit strsignal setitimer ualarm strchr strrchr \
2646 sendto recvfrom getsockopt setsockopt getsockname getpeername \
2647 gai_strerror mkstemp getline getdelim mremap memmove fsync sync \
2648 memset memcmp difftime memcpy mempcpy mblen mbrlen posix_memalign \
2649 cfmakeraw cfsetspeed isnan copysign __executable_start)
2650
2651 dnl Cannot use AC_CHECK_FUNCS
2652 AC_CACHE_CHECK([for __builtin_unwind_init],
2653                emacs_cv_func___builtin_unwind_init,
2654 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2655                 emacs_cv_func___builtin_unwind_init=yes,
2656                 emacs_cv_func___builtin_unwind_init=no)])
2657 if test $emacs_cv_func___builtin_unwind_init = yes; then
2658   AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2659             [Define to 1 if you have the `__builtin_unwind_init' function.])
2660 fi
2661
2662 AC_CHECK_HEADERS(sys/un.h)
2663
2664 AC_FUNC_FSEEKO
2665
2666 AC_FUNC_GETPGRP
2667
2668 # Configure gnulib.
2669 gl_ASSERT_NO_GNULIB_POSIXCHECK
2670 gl_ASSERT_NO_GNULIB_TESTS
2671 gl_INIT
2672
2673 # UNIX98 PTYs.
2674 AC_CHECK_FUNCS(grantpt)
2675
2676 # PTY-related GNU extensions.
2677 AC_CHECK_FUNCS(getpt)
2678
2679 # Check this now, so that we will NOT find the above functions in ncurses.
2680 # That is because we have not set up to link ncurses in lib-src.
2681 # It's better to believe a function is not available
2682 # than to expect to find it in ncurses.
2683 # Also we need tputs and friends to be able to build at all.
2684 have_tputs_et_al=true
2685 AC_SEARCH_LIBS(tputs, [ncurses terminfo termcap], , have_tputs_et_al=false)
2686 if test "$have_tputs_et_al" != true; then
2687   AC_MSG_ERROR([I couldn't find termcap functions (tputs and friends).
2688 Maybe some development libraries/packages are missing?  Try installing
2689 libncurses-dev(el), libterminfo-dev(el) or similar.])
2690 fi
2691 # Must define this when any termcap library is found.
2692 AC_DEFINE(HAVE_LIBNCURSES, 1,
2693           [Define to 1 if you have the `ncurses' library (-lncurses).])
2694 ## FIXME This was the cpp logic, but I am not sure it is right.
2695 ## The above test has not necessarily found libncurses.
2696 HAVE_LIBNCURSES=yes
2697
2698 ## Use terminfo instead of termcap?
2699 ## Note only system files NOT using terminfo are:
2700 ## freebsd < 40000, ms-w32, msdos, netbsd < 599002500, and
2701 ## darwin|gnu without ncurses.
2702 TERMINFO=no
2703 LIBS_TERMCAP=
2704 case "$opsys" in
2705   ## cygwin: Fewer environment variables to go wrong, more terminal types.
2706   ## hpux10-20: Use the system provided termcap(3) library.
2707   ## openbsd: David Mazieres <dm@reeducation-labor.lcs.mit.edu> says this
2708   ##  is necessary.  Otherwise Emacs dumps core when run -nw.
2709   aix4-2|cygwin|hpux*|irix6-5|openbsd|sol2*|unixware) TERMINFO=yes ;;
2710
2711   ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2712   ##  The ncurses library has been moved out of the System framework in
2713   ##  Mac OS X 10.2.  So if configure detects it, set the command-line
2714   ##  option to use it.
2715   darwin|gnu*)
2716     ## (HAVE_LIBNCURSES was not always true, but is since 2010-03-18.)
2717     if test "x$HAVE_LIBNCURSES" = "xyes"; then
2718       TERMINFO=yes
2719       LIBS_TERMCAP="-lncurses"
2720     fi
2721     ;;
2722
2723   freebsd)
2724     AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2725     AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2726     [AC_TRY_LINK([#include <osreldate.h>],
2727 [#if __FreeBSD_version < 400000
2728 fail;
2729 #endif
2730 ], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2731
2732     AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2733
2734     if test $emacs_cv_freebsd_terminfo = yes; then
2735       TERMINFO=yes
2736       LIBS_TERMCAP="-lncurses"
2737     else
2738       LIBS_TERMCAP="-ltermcap"
2739     fi
2740     ;;
2741
2742   netbsd)
2743     if test $ac_cv_search_tputs = -lterminfo; then
2744       TERMINFO=yes
2745       LIBS_TERMCAP="-lterminfo"
2746     else
2747       LIBS_TERMCAP="-ltermcap"
2748     fi
2749     ;;
2750
2751 esac
2752
2753 case "$opsys" in
2754   ## hpux: Make sure we get select from libc rather than from libcurses
2755   ##  because libcurses on HPUX 10.10 has a broken version of select.
2756   ##  We used to use -lc -lcurses, but this may be cleaner.
2757   hpux*) LIBS_TERMCAP="-ltermcap" ;;
2758
2759   openbsd) LIBS_TERMCAP="-lncurses" ;;
2760
2761   ## Must use system termcap, if we use any termcap.  It does special things.
2762   sol2*) test "$TERMINFO" != yes && LIBS_TERMCAP="-ltermcap" ;;
2763 esac
2764
2765 TERMCAP_OBJ=tparam.o
2766 if test $TERMINFO = yes; then
2767   AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
2768
2769   ## Default used to be -ltermcap.  Add a case above if need something else.
2770   test "x$LIBS_TERMCAP" = "x" && LIBS_TERMCAP="-lcurses"
2771
2772   TERMCAP_OBJ=terminfo.o
2773 fi
2774 AC_SUBST(LIBS_TERMCAP)
2775 AC_SUBST(TERMCAP_OBJ)
2776
2777
2778 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2779 resolv=no
2780 AC_TRY_LINK([#include <netinet/in.h>
2781 #include <arpa/nameser.h>
2782 #include <resolv.h>],
2783     [return res_init();],
2784     have_res_init=yes, have_res_init=no)
2785 if test "$have_res_init" = no; then
2786   OLIBS="$LIBS"
2787   LIBS="$LIBS -lresolv"
2788   AC_MSG_CHECKING(for res_init with -lresolv)
2789   AC_TRY_LINK([#include <netinet/in.h>
2790 #include <arpa/nameser.h>
2791 #include <resolv.h>],
2792     [return res_init();],
2793     have_res_init=yes, have_res_init=no)
2794   AC_MSG_RESULT($have_res_init)
2795   if test "$have_res_init" = yes ; then
2796     resolv=yes
2797   fi
2798   LIBS="$OLIBS"
2799 fi
2800
2801 if test "$have_res_init" = yes; then
2802   AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2803 fi
2804
2805 # Do we need the Hesiod library to provide the support routines?
2806 LIBHESIOD=
2807 if test "$with_hesiod" != no ; then
2808   # Don't set $LIBS here -- see comments above.  FIXME which comments?
2809   AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2810      [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2811                   [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2812   if test "$resolv" = yes ; then
2813     RESOLVLIB=-lresolv
2814   else
2815     RESOLVLIB=
2816   fi
2817   AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2818         hesiod=yes, :, $RESOLVLIB)])
2819
2820   if test x"$hesiod" = xyes; then
2821     AC_DEFINE(HAVE_LIBHESIOD, 1,
2822               [Define to 1 if you have the hesiod library (-lhesiod).])
2823     LIBHESIOD=-lhesiod
2824   fi
2825 fi
2826 AC_SUBST(LIBHESIOD)
2827
2828 # Do we need libresolv (due to res_init or Hesiod)?
2829 if test "$resolv" = yes ; then
2830   AC_DEFINE(HAVE_LIBRESOLV, 1,
2831             [Define to 1 if you have the resolv library (-lresolv).])
2832   LIBRESOLV=-lresolv
2833 else
2834   LIBRESOLV=
2835 fi
2836 AC_SUBST(LIBRESOLV)
2837
2838 # These tell us which Kerberos-related libraries to use.
2839 COM_ERRLIB=
2840 CRYPTOLIB=
2841 KRB5LIB=
2842 DESLIB=
2843 KRB4LIB=
2844
2845 if test "${with_kerberos}" != no; then
2846   AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
2847   if test $have_com_err = yes; then
2848     COM_ERRLIB=-lcom_err
2849     LIBS="$COM_ERRLIB $LIBS"
2850     AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
2851   fi
2852   AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
2853   if test $have_crypto = yes; then
2854     CRYPTOLIB=-lcrypto
2855     LIBS="$CRYPTOLIB $LIBS"
2856     AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
2857   fi
2858   AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
2859   if test $have_k5crypto = yes; then
2860     CRYPTOLIB=-lk5crypto
2861     LIBS="$CRYPTOLIB $LIBS"
2862     AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
2863   fi
2864   AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
2865   if test $have_krb5=yes; then
2866     KRB5LIB=-lkrb5
2867     LIBS="$KRB5LIB $LIBS"
2868     AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
2869   fi
2870   dnl FIXME Simplify.  Does not match 22 logic, thanks to default_off?
2871   if test "${with_kerberos5}" = no; then
2872     AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
2873     if test $have_des425 = yes; then
2874       DESLIB=-ldes425
2875       LIBS="$DESLIB $LIBS"
2876       AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
2877     else
2878       AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
2879       if test $have_des = yes; then
2880         DESLIB=-ldes
2881         LIBS="$DESLIB $LIBS"
2882         AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
2883       fi
2884     fi
2885     AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
2886     if test $have_krb4 = yes; then
2887       KRB4LIB=-lkrb4
2888       LIBS="$KRB4LIB $LIBS"
2889       AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
2890     else
2891       AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
2892       if test $have_krb = yes; then
2893         KRB4LIB=-lkrb
2894         LIBS="$KRB4LIB $LIBS"
2895         AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
2896       fi
2897     fi
2898   fi
2899
2900   if test "${with_kerberos5}" != no; then
2901     AC_CHECK_HEADERS(krb5.h,
2902       [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
2903                         [#include <krb5.h>])])
2904   else
2905     AC_CHECK_HEADERS(des.h,,
2906                      [AC_CHECK_HEADERS(kerberosIV/des.h,,
2907                                        [AC_CHECK_HEADERS(kerberos/des.h)])])
2908     AC_CHECK_HEADERS(krb.h,,
2909                      [AC_CHECK_HEADERS(kerberosIV/krb.h,,
2910                                        [AC_CHECK_HEADERS(kerberos/krb.h)])])
2911   fi
2912   AC_CHECK_HEADERS(com_err.h)
2913 fi
2914
2915 AC_SUBST(COM_ERRLIB)
2916 AC_SUBST(CRYPTOLIB)
2917 AC_SUBST(KRB5LIB)
2918 AC_SUBST(DESLIB)
2919 AC_SUBST(KRB4LIB)
2920
2921 # Solaris requires -lintl if you want strerror (which calls dgettext)
2922 # to return localized messages.
2923 AC_CHECK_LIB(intl, dgettext)
2924
2925 AC_MSG_CHECKING(whether localtime caches TZ)
2926 AC_CACHE_VAL(emacs_cv_localtime_cache,
2927 [if test x$ac_cv_func_tzset = xyes; then
2928 AC_TRY_RUN([#include <time.h>
2929 char TZ_GMT0[] = "TZ=GMT0";
2930 char TZ_PST8[] = "TZ=PST8";
2931 main()
2932 {
2933   time_t now = time ((time_t *) 0);
2934   int hour_GMT0, hour_unset;
2935   if (putenv (TZ_GMT0) != 0)
2936     exit (1);
2937   hour_GMT0 = localtime (&now)->tm_hour;
2938   unsetenv("TZ");
2939   hour_unset = localtime (&now)->tm_hour;
2940   if (putenv (TZ_PST8) != 0)
2941     exit (1);
2942   if (localtime (&now)->tm_hour == hour_GMT0)
2943     exit (1);
2944   unsetenv("TZ");
2945   if (localtime (&now)->tm_hour != hour_unset)
2946     exit (1);
2947   exit (0);
2948 }], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
2949 [# If we have tzset, assume the worst when cross-compiling.
2950 emacs_cv_localtime_cache=yes])
2951 else
2952         # If we lack tzset, report that localtime does not cache TZ,
2953         # since we can't invalidate the cache if we don't have tzset.
2954         emacs_cv_localtime_cache=no
2955 fi])dnl
2956 AC_MSG_RESULT($emacs_cv_localtime_cache)
2957 if test $emacs_cv_localtime_cache = yes; then
2958   AC_DEFINE(LOCALTIME_CACHE, 1,
2959             [Define to 1 if localtime caches TZ.])
2960 fi
2961
2962 if test "x$HAVE_TIMEVAL" = xyes; then
2963   AC_CHECK_FUNCS(gettimeofday)
2964   if test $ac_cv_func_gettimeofday = yes; then
2965     AC_CACHE_CHECK(whether gettimeofday can accept two arguments,
2966                    emacs_cv_gettimeofday_two_arguments,
2967     [AC_TRY_COMPILE([
2968 #ifdef TIME_WITH_SYS_TIME
2969 #include <sys/time.h>
2970 #include <time.h>
2971 #else
2972 #ifdef HAVE_SYS_TIME_H
2973 #include <sys/time.h>
2974 #else
2975 #include <time.h>
2976 #endif
2977 #endif],
2978       [struct timeval time;
2979        gettimeofday (&time, 0);],
2980       emacs_cv_gettimeofday_two_arguments=yes,
2981       emacs_cv_gettimeofday_two_arguments=no)])
2982     if test $emacs_cv_gettimeofday_two_arguments = no; then
2983       AC_DEFINE(GETTIMEOFDAY_ONE_ARGUMENT, 1,
2984                 [Define to 1 if gettimeofday accepts only one argument.])
2985     fi
2986   fi
2987 fi
2988
2989 ok_so_far=yes
2990 AC_CHECK_FUNC(socket, , ok_so_far=no)
2991 if test $ok_so_far = yes; then
2992   AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
2993 fi
2994 if test $ok_so_far = yes; then
2995   AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
2996 fi
2997 if test $ok_so_far = yes; then
2998 dnl Fixme: Not used.  Should this be HAVE_SOCKETS?
2999   AC_DEFINE(HAVE_INET_SOCKETS, 1,
3000             [Define to 1 if you have inet sockets.])
3001 fi
3002
3003 if test -f /usr/lpp/X11/bin/smt.exp; then
3004   AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3005             [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3006 fi
3007
3008 AC_MSG_CHECKING(whether system supports dynamic ptys)
3009 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3010   AC_MSG_RESULT(yes)
3011   AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3012 else
3013   AC_MSG_RESULT(no)
3014 fi
3015
3016 AC_FUNC_FORK
3017
3018 dnl Adapted from Haible's version.
3019 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3020   [AC_TRY_LINK([#include <langinfo.h>],
3021     [char* cs = nl_langinfo(CODESET);],
3022     emacs_cv_langinfo_codeset=yes,
3023     emacs_cv_langinfo_codeset=no)
3024   ])
3025 if test $emacs_cv_langinfo_codeset = yes; then
3026   AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3027     [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3028 fi
3029
3030 AC_CHECK_TYPES(size_t)
3031
3032 AC_TYPE_MBSTATE_T
3033
3034 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3035   [AC_TRY_COMPILE([void fred (int x[__restrict]);], [],
3036                   emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3037 if test "$emacs_cv_c_restrict_arr" = yes; then
3038   AC_DEFINE(__restrict_arr, __restrict,
3039     [Define to compiler's equivalent of C99 restrict keyword in array
3040      declarations.  Define as empty for no equivalent.])
3041 fi
3042
3043 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3044 dnl how the tty code is related to POSIX and/or other versions of termios.
3045 dnl The following looks like a useful start.
3046 dnl
3047 dnl AC_SYS_POSIX_TERMIOS
3048 dnl if test $ac_cv_sys_posix_termios = yes; then
3049 dnl    AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3050 dnl                                and macros for terminal control.])
3051 dnl    AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3052 dnl fi
3053
3054 dnl Fixme: Use AC_FUNC_MEMCMP since memcmp is used.  (Needs libobj replacement.)
3055
3056 # Set up the CFLAGS for real compilation, so we can substitute it.
3057 CFLAGS="$REAL_CFLAGS"
3058 CPPFLAGS="$REAL_CPPFLAGS"
3059
3060 ## Hack to detect a buggy GCC version.
3061 if test "x$GCC" = xyes \
3062    && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3063    && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3064    && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3065    AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3066 fi
3067
3068 version=$PACKAGE_VERSION
3069
3070 ### Specify what sort of things we'll be editing into Makefile and config.h.
3071 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3072 AC_SUBST(version)
3073 AC_SUBST(configuration)
3074 ## Unused?
3075 AC_SUBST(canonical)
3076 AC_SUBST(srcdir)
3077 AC_SUBST(prefix)
3078 AC_SUBST(exec_prefix)
3079 AC_SUBST(bindir)
3080 AC_SUBST(datadir)
3081 AC_SUBST(sharedstatedir)
3082 AC_SUBST(libexecdir)
3083 AC_SUBST(mandir)
3084 AC_SUBST(infodir)
3085 AC_SUBST(lispdir)
3086 AC_SUBST(locallisppath)
3087 AC_SUBST(lisppath)
3088 AC_SUBST(x_default_search_path)
3089 AC_SUBST(etcdir)
3090 AC_SUBST(archlibdir)
3091 AC_SUBST(docdir)
3092 AC_SUBST(bitmapdir)
3093 AC_SUBST(gamedir)
3094 AC_SUBST(gameuser)
3095 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
3096 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
3097 ## end of LIBX_BASE, but nothing ever set it.
3098 AC_SUBST(LD_SWITCH_X_SITE)
3099 AC_SUBST(C_SWITCH_X_SITE)
3100 AC_SUBST(C_SWITCH_X_SYSTEM)
3101 AC_SUBST(CFLAGS)
3102 ## Used in lwlib/Makefile.in.
3103 AC_SUBST(X_TOOLKIT_TYPE)
3104 if test -n "${machfile}"; then
3105   M_FILE="\$(srcdir)/${machfile}"
3106 else
3107   M_FILE=
3108 fi
3109 S_FILE="\$(srcdir)/${opsysfile}"
3110 AC_SUBST(M_FILE)
3111 AC_SUBST(S_FILE)
3112 AC_SUBST(ns_appdir)
3113 AC_SUBST(ns_appbindir)
3114 AC_SUBST(ns_appresdir)
3115 AC_SUBST(ns_appsrc)
3116 AC_SUBST(GNU_OBJC_CFLAGS)
3117 AC_SUBST(OTHER_FILES)
3118
3119 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION,  "${canonical}",
3120                    [Define to the canonical Emacs configuration name.])
3121 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
3122                    [Define to the options passed to configure.])
3123 if test -n "$machfile"; then
3124   AC_DEFINE_UNQUOTED(config_machfile,  "${machfile}",
3125                      [Define to the used machine dependent file.])
3126 fi
3127 AC_DEFINE_UNQUOTED(config_opsysfile, "${opsysfile}",
3128                    [Define to the used os dependent file.])
3129
3130 XMENU_OBJ=
3131 XOBJ=
3132 FONT_OBJ=
3133 if test "${HAVE_X_WINDOWS}" = "yes" ; then
3134   AC_DEFINE(HAVE_X_WINDOWS, 1,
3135             [Define to 1 if you want to use the X window system.])
3136   XMENU_OBJ=xmenu.o
3137   XOBJ="xterm.o xfns.o xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o xsettings.o xgselect.o"
3138   FONT_OBJ=xfont.o
3139   if test "$HAVE_XFT" = "yes"; then
3140     FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
3141   elif test "$HAVE_FREETYPE" = "yes"; then
3142     FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
3143   fi
3144   AC_SUBST(FONT_OBJ)
3145 fi
3146 AC_SUBST(XMENU_OBJ)
3147 AC_SUBST(XOBJ)
3148 AC_SUBST(FONT_OBJ)
3149
3150 WIDGET_OBJ=
3151 MOTIF_LIBW=
3152 if test "${USE_X_TOOLKIT}" != "none" ; then
3153   WIDGET_OBJ=widget.o
3154   AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
3155   if test "${USE_X_TOOLKIT}" = "LUCID"; then
3156     AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
3157   elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
3158     AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
3159     MOTIF_LIBW=-lXm
3160     case "$opsys" in
3161       gnu-linux)
3162         ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
3163         MOTIF_LIBW="$MOTIF_LIBW -lXpm"
3164         ;;
3165
3166       unixware)
3167         ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
3168         ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
3169         MOTIF_LIBW="MOTIF_LIBW -lXimp"
3170         ;;
3171
3172       aix4-2)
3173         ## olson@mcs.anl.gov says -li18n is needed by -lXm.
3174         MOTIF_LIBW="$MOTIF_LIBW -li18n"
3175         ;;
3176     esac
3177     MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
3178   fi
3179 fi
3180 AC_SUBST(WIDGET_OBJ)
3181
3182 TOOLKIT_LIBW=
3183 case "$USE_X_TOOLKIT" in
3184   MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
3185   LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
3186   none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
3187 esac
3188 AC_SUBST(TOOLKIT_LIBW)
3189
3190 if test "$USE_X_TOOLKIT" = "none"; then
3191   LIBXT_OTHER="\$(LIBXSM)"
3192   OLDXMENU_TARGET="really-oldXMenu"
3193 else
3194   LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
3195   OLDXMENU_TARGET="really-lwlib"
3196 fi
3197 AC_SUBST(LIBXT_OTHER)
3198
3199 ## The X Menu stuff is present in the X10 distribution, but missing
3200 ## from X11.  If we have X10, just use the installed library;
3201 ## otherwise, use our own copy.
3202 if test "${HAVE_X11}" = "yes" ; then
3203   AC_DEFINE(HAVE_X11, 1,
3204             [Define to 1 if you want to use version 11 of X windows.
3205              Otherwise, Emacs expects to use version 10.])
3206
3207   if test "$USE_X_TOOLKIT" = "none"; then
3208     OLDXMENU="\${oldXMenudir}/libXMenu11.a"
3209   else
3210     OLDXMENU="\${lwlibdir}/liblw.a"
3211   fi
3212   LIBXMENU="\$(OLDXMENU)"
3213   LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
3214   OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
3215 else
3216   ## For a syntactically valid Makefile; not actually used for anything.
3217   ## See comments in src/Makefile.in.
3218   OLDXMENU=nothing
3219   ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
3220   if test "${HAVE_X_WINDOWS}" = "yes"; then
3221     LIBXMENU="-lXMenu"
3222   else
3223     LIBXMENU=
3224   fi
3225   LIBX_OTHER=
3226   OLDXMENU_DEPS=
3227 fi
3228
3229 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
3230   OLDXMENU_TARGET=
3231   OLDXMENU=nothing
3232   LIBXMENU=
3233   OLDXMENU_DEPS=
3234 fi
3235
3236 AC_SUBST(OLDXMENU_TARGET)
3237 AC_SUBST(OLDXMENU)
3238 AC_SUBST(LIBXMENU)
3239 AC_SUBST(LIBX_OTHER)
3240 AC_SUBST(OLDXMENU_DEPS)
3241
3242 if test "${HAVE_MENUS}" = "yes" ; then
3243   AC_DEFINE(HAVE_MENUS, 1,
3244             [Define to 1 if you have mouse menus.
3245              (This is automatic if you use X, but the option to specify it remains.)
3246              It is also defined with other window systems that support xmenu.c.])
3247 fi
3248
3249 if test "${GNU_MALLOC}" = "yes" ; then
3250   AC_DEFINE(GNU_MALLOC, 1,
3251             [Define to 1 if you want to use the GNU memory allocator.])
3252 fi
3253
3254 RALLOC_OBJ=
3255 if test "${REL_ALLOC}" = "yes" ; then
3256   AC_DEFINE(REL_ALLOC, 1,
3257             [Define REL_ALLOC if you want to use the relocating allocator for
3258              buffer space.])
3259
3260   test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
3261 fi
3262 AC_SUBST(RALLOC_OBJ)
3263
3264 if test "$opsys" = "cygwin"; then
3265   CYGWIN_OBJ="sheap.o"
3266   ## Cygwin differs because of its unexec().
3267   PRE_ALLOC_OBJ=
3268   POST_ALLOC_OBJ=lastfile.o
3269 else
3270   CYGWIN_OBJ=
3271   PRE_ALLOC_OBJ=lastfile.o
3272   POST_ALLOC_OBJ=
3273 fi
3274 AC_SUBST(CYGWIN_OBJ)
3275 AC_SUBST(PRE_ALLOC_OBJ)
3276 AC_SUBST(POST_ALLOC_OBJ)
3277
3278
3279 case "$opsys" in
3280   aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
3281
3282   darwin)
3283    ## The -headerpad option tells ld (see man page) to leave room at the
3284    ## end of the header for adding load commands.  Needed for dumping.
3285    ## 0x690 is the total size of 30 segment load commands (at 56
3286    ## each); under Cocoa 31 commands are required.
3287    if test "$HAVE_NS" = "yes"; then
3288      libs_nsgui="-framework AppKit"
3289      headerpad_extra=6C8
3290    else
3291      libs_nsgui=
3292      headerpad_extra=690
3293    fi
3294    LD_SWITCH_SYSTEM_TEMACS="-prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
3295
3296    ## This is here because src/Makefile.in did some extra fiddling around
3297    ## with LD_SWITCH_SYSTEM.  The cpp logic was:
3298    ##   #ifndef LD_SWITCH_SYSTEM
3299    ##   #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
3300    ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
3301    ## not using gcc, darwin system not on an alpha (ie darwin, since
3302    ## darwin + alpha does not occur).
3303    ## Because this was done in src/Makefile.in, the resulting part of
3304    ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
3305    ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
3306    ## rather than LD_SWITCH_SYSTEM.
3307    test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
3308      LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
3309    ;;
3310
3311   ## LD_SWITCH_X_SITE_AUX is a -R option saying where to find X at run-time.
3312   ## When handled by cpp, this was in LD_SWITCH_SYSTEM.  However, at
3313   ## the point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_AUX
3314   ## had not yet been defined and was expanded to null.  Hence LD_SWITCH_SYSTEM
3315   ## had different values in configure (in ac_link) and src/Makefile.in.
3316   ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
3317   gnu-linux) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_AUX)" ;;
3318
3319   *) LD_SWITCH_SYSTEM_TEMACS= ;;
3320 esac
3321
3322 if test "$NS_IMPL_GNUSTEP" = "yes"; then
3323   LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
3324 fi
3325
3326 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
3327
3328
3329 LD_FIRSTFLAG=
3330 ORDINARY_LINK=
3331 case "$opsys" in
3332   ## gnu: GNU needs its own crt0.
3333   aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
3334
3335   ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
3336   ## library search parth, i.e. it won't search /usr/lib for libc and
3337   ## friends.  Using -nostartfiles instead avoids this problem, and
3338   ## will also work on earlier NetBSD releases.
3339   netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
3340
3341   ## macpcc: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
3342   ##   MkLinux/LinuxPPC needs this.
3343   ## ibms390x only supports opsys = gnu-linux so it can be added here.
3344   gnu-*)
3345     case "$machine" in
3346       macppc|ibms390x) LD_FIRSTFLAG="-nostdlib" ;;
3347     esac
3348     ;;
3349 esac
3350
3351
3352 if test "x$ORDINARY_LINK" = "xyes"; then
3353
3354   LD_FIRSTFLAG=""
3355   AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
3356
3357 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
3358 ## freebsd, gnu-* not on macppc|ibms390x.
3359 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
3360
3361   ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
3362   ## places that are difficult to figure out at make time.  Fortunately,
3363   ## these same versions allow you to pass arbitrary flags on to the
3364   ## linker, so there is no reason not to use it as a linker.
3365   ##
3366   ## Well, it is not quite perfect.  The "-nostdlib" keeps GCC from
3367   ## searching for libraries in its internal directories, so we have to
3368   ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
3369   LD_FIRSTFLAG="-nostdlib"
3370 fi
3371
3372 ## FIXME? What setting of EDIT_LDFLAGS should this have?
3373 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
3374
3375 AC_SUBST(LD_FIRSTFLAG)
3376
3377
3378 ## FIXME? The logic here is not precisely the same as that above.
3379 ## There is no check here for a pre-defined LD_FIRSTFLAG.
3380 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
3381 LIB_GCC=
3382 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
3383
3384   case "$opsys" in
3385     freebsd|netbsd|openbsd) LIB_GCC= ;;
3386
3387     gnu-*)
3388       ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
3389       ## build on ARM EABI under GNU/Linux.  (Bug#5518)
3390       case $host_cpu in
3391       arm*)
3392         LIB_GCC="-lgcc_s"
3393         ;;
3394       *)
3395         ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
3396         ## immediately undefine it again and redefine it to empty.
3397         ## Was the C_SWITCH_X_SITE part really necessary?
3398 ##      LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
3399         LIB_GCC=
3400         ;;
3401       esac
3402       ;;
3403
3404     ## Ask GCC where to find libgcc.a.
3405     *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
3406   esac
3407 fi                              dnl if $GCC
3408 AC_SUBST(LIB_GCC)
3409
3410
3411 TOOLTIP_SUPPORT=
3412 WINDOW_SUPPORT=
3413 ## If we're using X11/GNUstep, define some consequences.
3414 if test "$HAVE_X_WINDOWS" = "yes" || test "$HAVE_NS" = "yes"; then
3415   AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
3416   AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
3417   MOUSE_SUPPORT="\$(REAL_MOUSE_SUPPORT)"
3418   TOOLTIP_SUPPORT="\${lispsource}/mouse.elc"
3419
3420   WINDOW_SUPPORT="\$(BASE_WINDOW_SUPPORT)"
3421   test "$HAVE_X_WINDOWS" = "yes" && \
3422     WINDOW_SUPPORT="$WINDOW_SUPPORT \$(X_WINDOW_SUPPORT)"
3423
3424 fi
3425 AC_SUBST(MOUSE_SUPPORT)
3426 AC_SUBST(TOOLTIP_SUPPORT)
3427 AC_SUBST(WINDOW_SUPPORT)
3428
3429
3430 AH_TOP([/* GNU Emacs site configuration template file.
3431
3432 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2011
3433   Free Software Foundation, Inc.
3434
3435 This file is part of GNU Emacs.
3436
3437 GNU Emacs is free software: you can redistribute it and/or modify
3438 it under the terms of the GNU General Public License as published by
3439 the Free Software Foundation, either version 3 of the License, or
3440 (at your option) any later version.
3441
3442 GNU Emacs is distributed in the hope that it will be useful,
3443 but WITHOUT ANY WARRANTY; without even the implied warranty of
3444 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
3445 GNU General Public License for more details.
3446
3447 You should have received a copy of the GNU General Public License
3448 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
3449
3450
3451 /* No code in Emacs #includes config.h twice, but some bits of code
3452    intended to work with other packages as well (like gmalloc.c)
3453    think they can include it as many times as they like.  */
3454 #ifndef EMACS_CONFIG_H
3455 #define EMACS_CONFIG_H
3456 ])dnl
3457
3458 AH_BOTTOM([
3459 /* Define AMPERSAND_FULL_NAME if you use the convention
3460    that & in the full name stands for the login id.  */
3461 /* Turned on June 1996 supposing nobody will mind it.  */
3462 #define AMPERSAND_FULL_NAME
3463
3464 /* If using GNU, then support inline function declarations.  */
3465 /* Don't try to switch on inline handling as detected by AC_C_INLINE
3466    generally, because even if non-gcc compilers accept `inline', they
3467    may reject `extern inline'.  */
3468 #if defined (__GNUC__)
3469 #define INLINE __inline__
3470 #else
3471 #define INLINE
3472 #endif
3473
3474 /* `subprocesses' should be defined if you want to
3475    have code for asynchronous subprocesses
3476    (as used in M-x compile and M-x shell).
3477    Only MSDOS does not support this (it overrides
3478    this in its config_opsysfile below).  */
3479
3480 #define subprocesses
3481
3482 /* Include the os and machine dependent files.  */
3483 #include config_opsysfile
3484 #ifdef config_machfile
3485 # include config_machfile
3486 #endif
3487
3488 /* GNUstep needs a bit more pure memory.  Of the existing knobs,
3489    SYSTEM_PURESIZE_EXTRA seems like the least likely to cause problems.
3490   (There is probably a better place to do this, but right now the
3491    Cocoa side does this in s/darwin.h and we cannot parallel this
3492    exactly since GNUstep is multi-OS.  */
3493 #if defined HAVE_NS && defined NS_IMPL_GNUSTEP
3494 #  define SYSTEM_PURESIZE_EXTRA 30000
3495 #endif
3496
3497 /* SIGTYPE is the macro we actually use.  */
3498 #ifndef SIGTYPE
3499 #define SIGTYPE RETSIGTYPE
3500 #endif
3501
3502 #ifdef emacs /* Don't do this for lib-src.  */
3503 /* Tell regex.c to use a type compatible with Emacs.  */
3504 #define RE_TRANSLATE_TYPE Lisp_Object
3505 #define RE_TRANSLATE(TBL, C) CHAR_TABLE_TRANSLATE (TBL, C)
3506 #ifdef make_number
3507 /* If make_number is a macro, use it.  */
3508 #define RE_TRANSLATE_P(TBL) (!EQ (TBL, make_number (0)))
3509 #else
3510 /* If make_number is a function, avoid it.  */
3511 #define RE_TRANSLATE_P(TBL) (!(INTEGERP (TBL) && XINT (TBL) == 0))
3512 #endif
3513 #endif
3514
3515 /* These default definitions are good for almost all machines.
3516    The exceptions override them in m/MACHINE.h.  */
3517
3518 #ifndef BITS_PER_CHAR
3519 #define BITS_PER_CHAR 8
3520 #endif
3521
3522 #ifndef BITS_PER_SHORT
3523 #define BITS_PER_SHORT 16
3524 #endif
3525
3526 /* Note that lisp.h uses this in a preprocessor conditional, so it
3527    would not work to use sizeof.  That being so, we do all of them
3528    without sizeof, for uniformity's sake.  */
3529 #ifndef BITS_PER_INT
3530 #define BITS_PER_INT 32
3531 #endif
3532
3533 #ifndef BITS_PER_LONG
3534 #ifdef _LP64
3535 #define BITS_PER_LONG 64
3536 #else
3537 #define BITS_PER_LONG 32
3538 #endif
3539 #endif
3540
3541 /* Define if the compiler supports function prototypes.  It may do so but
3542    not define __STDC__ (e.g. DEC C by default) or may define it as zero.  */
3543 #undef PROTOTYPES
3544
3545 #include <string.h>
3546 #include <stdlib.h>
3547
3548 #ifdef HAVE_ALLOCA_H
3549 # include <alloca.h>
3550 #elif defined __GNUC__
3551 # define alloca __builtin_alloca
3552 #elif defined _AIX
3553 # define alloca __alloca
3554 #else
3555 # include <stddef.h>
3556 # ifdef  __cplusplus
3557 extern "C"
3558 # endif
3559 void *alloca (size_t);
3560 #endif
3561
3562 #ifndef HAVE_SIZE_T
3563 typedef unsigned size_t;
3564 #endif
3565
3566 #ifndef HAVE_STRCHR
3567 #define strchr(a, b) index (a, b)
3568 #endif
3569
3570 #ifndef HAVE_STRRCHR
3571 #define strrchr(a, b) rindex (a, b)
3572 #endif
3573
3574 #if defined __GNUC__ && (__GNUC__ > 2 \
3575                          || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5))
3576 #define NO_RETURN       __attribute__ ((__noreturn__))
3577 #else
3578 #define NO_RETURN       /* nothing */
3579 #endif
3580
3581 #if __GNUC__ >= 3  /* On GCC 3.0 we might get a warning.  */
3582 #define NO_INLINE __attribute__((noinline))
3583 #else
3584 #define NO_INLINE
3585 #endif
3586
3587 #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))
3588 #define EXTERNALLY_VISIBLE __attribute__((externally_visible))
3589 #else
3590 #define EXTERNALLY_VISIBLE
3591 #endif
3592
3593 /* Some versions of GNU/Linux define noinline in their headers.  */
3594 #ifdef noinline
3595 #undef noinline
3596 #endif
3597
3598 /* These won't be used automatically yet.  We also need to know, at least,
3599    that the stack is continuous.  */
3600 #ifdef __GNUC__
3601 #  ifndef GC_SETJMP_WORKS
3602   /* GC_SETJMP_WORKS is nearly always appropriate for GCC.  */
3603 #    define GC_SETJMP_WORKS 1
3604 #  endif
3605 #  ifndef GC_LISP_OBJECT_ALIGNMENT
3606 #    define GC_LISP_OBJECT_ALIGNMENT (__alignof__ (Lisp_Object))
3607 #  endif
3608 #endif
3609
3610 #endif /* EMACS_CONFIG_H */
3611
3612 /*
3613 Local Variables:
3614 mode: c
3615 End:
3616 */
3617 ])dnl
3618
3619 #### Report on what we decided to do.
3620 #### Report GTK as a toolkit, even if it doesn't use Xt.
3621 #### It makes printing result more understandable as using GTK sets
3622 #### toolkit_scroll_bars to yes by default.
3623 if test "${HAVE_GTK}" = "yes"; then
3624   USE_X_TOOLKIT=GTK
3625 fi
3626
3627 and_machfile=
3628 if test -n "$machfile"; then
3629   and_machfile=" and \`${machfile}'"
3630 fi
3631
3632 echo "
3633 Configured for \`${canonical}'.
3634
3635   Where should the build process find the source code?    ${srcdir}
3636   What operating system and machine description files should Emacs use?
3637         \`${opsysfile}'${and_machfile}
3638   What compiler should emacs be built with?               ${CC} ${CFLAGS}
3639   Should Emacs use the GNU version of malloc?             ${GNU_MALLOC}${GNU_MALLOC_reason}
3640   Should Emacs use a relocating allocator for buffers?    ${REL_ALLOC}
3641   Should Emacs use mmap(2) for buffer allocation?         $use_mmap_for_buffers
3642   What window system should Emacs use?                    ${window_system}
3643   What toolkit should Emacs use?                          ${USE_X_TOOLKIT}"
3644
3645 if test -n "${x_includes}"; then
3646 echo "  Where do we find X Windows header files?                ${x_includes}"
3647 else
3648 echo "  Where do we find X Windows header files?                Standard dirs"
3649 fi
3650 if test -n "${x_libraries}"; then
3651 echo "  Where do we find X Windows libraries?                   ${x_libraries}"
3652 else
3653 echo "  Where do we find X Windows libraries?                   Standard dirs"
3654 fi
3655
3656 echo "  Does Emacs use -lXaw3d?                                 ${HAVE_XAW3D}"
3657 echo "  Does Emacs use -lXpm?                                   ${HAVE_XPM}"
3658 echo "  Does Emacs use -ljpeg?                                  ${HAVE_JPEG}"
3659 echo "  Does Emacs use -ltiff?                                  ${HAVE_TIFF}"
3660 echo "  Does Emacs use a gif library?                           ${HAVE_GIF} $LIBGIF"
3661 echo "  Does Emacs use -lpng?                                   ${HAVE_PNG}"
3662 echo "  Does Emacs use -lrsvg-2?                                ${HAVE_RSVG}"
3663 echo "  Does Emacs use imagemagick?                             ${HAVE_IMAGEMAGICK}"
3664
3665 echo "  Does Emacs use -lgpm?                                   ${HAVE_GPM}"
3666 echo "  Does Emacs use -ldbus?                                  ${HAVE_DBUS}"
3667 echo "  Does Emacs use -lgconf?                                 ${HAVE_GCONF}"
3668 echo "  Does Emacs use -lselinux?                               ${HAVE_LIBSELINUX}"
3669 echo "  Does Emacs use -lgnutls?                                ${HAVE_GNUTLS}"
3670 echo "  Does Emacs use -lxml2?                                  ${HAVE_LIBXML2}"
3671
3672 echo "  Does Emacs use -lfreetype?                              ${HAVE_FREETYPE}"
3673 echo "  Does Emacs use -lm17n-flt?                              ${HAVE_M17N_FLT}"
3674 echo "  Does Emacs use -lotf?                                   ${HAVE_LIBOTF}"
3675 echo "  Does Emacs use -lxft?                                   ${HAVE_XFT}"
3676
3677 echo "  Does Emacs use toolkit scroll bars?                     ${USE_TOOLKIT_SCROLL_BARS}"
3678 echo
3679
3680 if test $USE_XASSERTS = yes; then
3681    echo "  Compiling with asserts turned on."
3682    CPPFLAGS="$CPPFLAGS -DXASSERTS=1"
3683 fi
3684
3685 echo
3686
3687 if test "$HAVE_NS" = "yes"; then
3688    echo
3689    echo "You must run \"make install\" in order to test the built application.
3690 The installed application will go to nextstep/Emacs.app and can be
3691 run or moved from there."
3692    if test "$EN_NS_SELF_CONTAINED" = "yes"; then
3693       echo "The application will be fully self-contained."
3694     else
3695       echo "The lisp resources for the application will be installed under ${prefix}.
3696 You may need to run \"make install\" with sudo.  The application will fail
3697 to run if these resources are not installed."
3698    fi
3699    echo
3700 fi
3701
3702
3703 # Remove any trailing slashes in these variables.
3704 [test "${prefix}" != NONE &&
3705   prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
3706 test "${exec_prefix}" != NONE &&
3707   exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
3708
3709 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
3710         doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
3711         doc/lispref/Makefile src/Makefile \
3712         lwlib/Makefile lisp/Makefile leim/Makefile test/automated/Makefile])
3713
3714 dnl Make the necessary directories, if they don't exist.
3715 AC_CONFIG_COMMANDS([mkdirs], [
3716 for dir in etc lisp ; do
3717   test -d ${dir} || mkdir ${dir}
3718 done
3719 ])
3720
3721 dnl You might wonder (I did) why epaths.h is generated by running make,
3722 dnl rather than just letting configure generate it from epaths.in.
3723 dnl One reason is that the various paths are not fully expanded (see above);
3724 dnl eg gamedir=${prefix}/var/games/emacs.
3725 dnl Secondly, the GNU Coding standards require that one should be able
3726 dnl to run `make prefix=/some/where/else' and override the values set
3727 dnl by configure.  This also explains the `move-if-change' test and
3728 dnl the use of force in the `epaths-force' rule in Makefile.in.
3729 AC_CONFIG_COMMANDS([epaths], [
3730 echo creating src/epaths.h
3731 ${MAKE-make} epaths-force
3732 ], [GCC="$GCC" NON_GNU_CPP="$NON_GNU_CPP" CPP="$CPP" CPPFLAGS="$CPPFLAGS"])
3733
3734 AC_CONFIG_COMMANDS([gdbinit], [
3735 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
3736   echo creating src/.gdbinit
3737   echo source $srcdir/src/.gdbinit > src/.gdbinit
3738 fi
3739 ])
3740
3741 AC_OUTPUT
3742
3743 dnl configure.in ends here