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 $NON_GCC_TEST_OPTIONS"
 700 fi
 701
 702 ### Use -Wno-pointer-sign if the compiler supports it
 703 AC_MSG_CHECKING([whether gcc understands -Wno-pointer-sign])
 704 SAVE_CFLAGS="$CFLAGS"
 705 CFLAGS="$CFLAGS -Wno-pointer-sign"
 706 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 707 if test $has_option = yes; then
 708    C_WARNINGS_SWITCH="-Wno-pointer-sign $C_WARNINGS_SWITCH"
 709 fi
 710 AC_MSG_RESULT($has_option)
 711 CFLAGS="$SAVE_CFLAGS"
 712 unset has_option
 713 unset SAVE_CFLAGS
 714
 715 ### Use -Wdeclaration-after-statement if the compiler supports it
 716 AC_MSG_CHECKING([whether gcc understands -Wdeclaration-after-statement])
 717 SAVE_CFLAGS="$CFLAGS"
 718 CFLAGS="$CFLAGS -Wdeclaration-after-statement"
 719 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 720 if test $has_option = yes; then
 721    C_WARNINGS_SWITCH="-Wdeclaration-after-statement $C_WARNINGS_SWITCH"
 722 fi
 723 AC_MSG_RESULT($has_option)
 724 CFLAGS="$SAVE_CFLAGS"
 725 unset has_option
 726 unset SAVE_CFLAGS
 727
 728 ### Use -Wold-style-definition if the compiler supports it
 729 # This can be removed when conversion to standard C is finished.
 730 AC_MSG_CHECKING([whether gcc understands -Wold-style-definition])
 731 SAVE_CFLAGS="$CFLAGS"
 732 CFLAGS="$CFLAGS -Wold-style-definition"
 733 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 734 if test $has_option = yes; then
 735    C_WARNINGS_SWITCH="-Wold-style-definition $C_WARNINGS_SWITCH"
 736 fi
 737 AC_MSG_RESULT($has_option)
 738 CFLAGS="$SAVE_CFLAGS"
 739 unset has_option
 740 unset SAVE_CFLAGS
 741
 742 ### Use -Wimplicit-function-declaration if the compiler supports it
 743 AC_MSG_CHECKING([whether gcc understands -Wimplicit-function-declaration])
 744 SAVE_CFLAGS="$CFLAGS"
 745 CFLAGS="$CFLAGS -Wimplicit-function-declaration"
 746 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 747 if test $has_option = yes; then
 748    C_WARNINGS_SWITCH="-Wimplicit-function-declaration $C_WARNINGS_SWITCH"
 749 fi
 750 AC_MSG_RESULT($has_option)
 751 CFLAGS="$SAVE_CFLAGS"
 752 unset has_option
 753 unset SAVE_CFLAGS
 754
 755 AC_SUBST(C_WARNINGS_SWITCH)
 756
 757
 758 #### Some other nice autoconf tests.
 759
 760 dnl checks for programs
 761 AC_PROG_CPP
 762 AC_PROG_INSTALL
 763 if test "x$RANLIB" = x; then
 764   AC_PROG_RANLIB
 765 fi
 766
 767 ## Although we're running on an amd64 kernel, we're actually compiling for
 768 ## the x86 architecture.  The user should probably have provided an
 769 ## explicit --build to `configure', but if everything else than the kernel
 770 ## is running in i386 mode, we can help them out.
 771 if test "$machine" = "amdx86-64"; then
 772   AC_CHECK_DECL([i386])
 773   if test "$ac_cv_have_decl_i386" = "yes"; then
 774     canonical=`echo "$canonical" | sed -e 's/^amd64/i386/' -e 's/^x86_64/i386/'`
 775     machine=intel386
 776     machfile="m/${machine}.h"
 777   fi
 778 fi
 779
 780 AC_PATH_PROG(INSTALL_INFO, install-info)
 781 AC_PATH_PROG(INSTALL_INFO, install-info,, /usr/sbin)
 782 AC_PATH_PROG(INSTALL_INFO, install-info,:, /sbin)
 783 dnl Don't use GZIP, which is used by gzip for additional parameters.
 784 AC_PATH_PROG(GZIP_PROG, gzip)
 785
 786
 787 ## Need makeinfo >= 4.6 (?) to build the manuals.
 788 AC_PATH_PROG(MAKEINFO, makeinfo, no)
 789 dnl By this stage, configure has already checked for egrep and set EGREP,
 790 dnl or exited with an error if no egrep was found.
 791 if test "$MAKEINFO" != "no" && \
 792   test x"`$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
 793    MAKEINFO=no
 794 fi
 795
 796 ## Makeinfo is unusual.  For a released Emacs, the manuals are
 797 ## pre-built, and not deleted by the normal clean rules.  makeinfo is
 798 ## therefore in the category of "special tools" not normally required, which
 799 ## configure does not have to check for (eg autoconf itself).
 800 ## In a Bazaar checkout on the other hand, the manuals are not included.
 801 ## So makeinfo is a requirement to build from Bazaar, and configure
 802 ## should test for it as it does for any other build requirement.
 803 ## We use the presence of $srcdir/info/emacs to distinguish a release,
 804 ## with pre-built manuals, from a Bazaar checkout.
 805 HAVE_MAKEINFO=yes
 806
 807 if test "$MAKEINFO" = "no"; then
 808   MAKEINFO=makeinfo
 809   if test "x${with_makeinfo}" = "xno"; then
 810     HAVE_MAKEINFO=no
 811   elif test ! -e $srcdir/info/emacs; then
 812     AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.6, and your
 813 source tree does not seem to have pre-built manuals in the `info' directory.
 814 Either install a suitable version of makeinfo, or re-run configure
 815 with the `--without-makeinfo' option to build without the manuals.] )
 816   fi
 817 fi
 818 AC_SUBST(HAVE_MAKEINFO)
 819
 820 dnl Add our options to ac_link now, after it is set up.
 821
 822 if test x$GCC = xyes; then
 823   test "x$GCC_LINK_TEST_OPTIONS" != x && \
 824     ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
 825 else
 826   test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
 827     ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
 828 fi
 829
 830 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
 831 dnl If we can link with the flag, it shouldn't do any harm anyhow.
 832 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
 833 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
 834 dnl if not built to support GNU ld.
 835
 836 late_LDFLAGS=$LDFLAGS
 837 if test x$GCC = xyes; then
 838   LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
 839 else
 840   LDFLAGS="$LDFLAGS -znocombreloc"
 841 fi
 842
 843 AC_MSG_CHECKING([for -znocombreloc])
 844 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
 845   [AC_MSG_RESULT(yes)],
 846   LDFLAGS=$late_LDFLAGS
 847   [AC_MSG_RESULT(no)])
 848
 849
 850 # The value of CPP is a quoted variable reference, so we need to do this
 851 # to get its actual value...
 852 CPP=`eval "echo $CPP"`
 853
 854
 855 dnl The function dump-emacs will not be defined and temacs will do
 856 dnl (load "loadup") automatically unless told otherwise.
 857 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
 858 case "$opsys" in
 859   your-opsys-here) CANNOT_DUMP=yes ;;
 860 esac
 861
 862 test "$CANNOT_DUMP" = "yes" && \
 863   AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
 864
 865 AC_SUBST(CANNOT_DUMP)
 866
 867
 868 UNEXEC_OBJ=unexelf.o
 869 case "$opsys" in
 870   # MSDOS uses unexcoff.o
 871   # MSWindows uses unexw32.o
 872   aix4-2)
 873    UNEXEC_OBJ=unexaix.o
 874    ;;
 875   cygwin)
 876    UNEXEC_OBJ=unexcw.o
 877    ;;
 878   darwin)
 879    UNEXEC_OBJ=unexmacosx.o
 880    ;;
 881   hpux10-20 | hpux11)
 882    UNEXEC_OBJ=unexhp9k800.o
 883    ;;
 884   sol2-10)
 885    # Use the Solaris dldump() function, called from unexsol.c, to dump
 886    # emacs, instead of the generic ELF dump code found in unexelf.c.
 887    # The resulting binary has a complete symbol table, and is better
 888    # for debugging and other observability tools (debuggers, pstack, etc).
 889    #
 890    # If you encounter a problem using dldump(), please consider sending
 891    # a message to the OpenSolaris tools-linking mailing list:
 892    #      http://mail.opensolaris.org/mailman/listinfo/tools-linking
 893    #
 894    # It is likely that dldump() works with older Solaris too, but this has
 895    # not been tested, so for now this change is for Solaris 10 or newer.
 896    UNEXEC_OBJ=unexsol.o
 897    ;;
 898 esac
 899
 900 LD_SWITCH_SYSTEM=
 901 case "$opsys" in
 902   freebsd)
 903    ## Let `ld' find image libs and similar things in /usr/local/lib.
 904    ## The system compiler, GCC, has apparently been modified to not
 905    ## look there, contrary to what a stock GCC would do.
 906    LD_SWITCH_SYSTEM=-L/usr/local/lib
 907    ;;
 908
 909   gnu-linux)
 910    ## cpp test was "ifdef __mips__", but presumably this is equivalent...
 911    case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
 912    ;;
 913
 914   netbsd)
 915    LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
 916    ;;
 917
 918   openbsd)
 919    ## Han Boetes <han@mijncomputer.nl> says this is necessary,
 920    ## otherwise Emacs dumps core on elf systems.
 921    LD_SWITCH_SYSTEM="-Z"
 922    ;;
 923 esac
 924 AC_SUBST(LD_SWITCH_SYSTEM)
 925
 926 ac_link="$ac_link $LD_SWITCH_SYSTEM"
 927
 928 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_AUX,
 929 ## which has not been defined yet.  When this was handled with cpp,
 930 ## it was expanded to null when configure sourced the s/*.h file.
 931 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
 932 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
 933 ## (or somesuch), but because it is supposed to go at the _front_
 934 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
 935 ## Compare with the gnu-linux case below, which added to the end
 936 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
 937 ## LD_SWITCH_SYSTEM_TEMACS.
 938 case "$opsys" in
 939   netbsd|openbsd)
 940    ## _AUX_RPATH is like _AUX, but uses -rpath instead of -R.
 941    LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_AUX_RPATH) $LD_SWITCH_SYSTEM" ;;
 942 esac
 943
 944
 945 C_SWITCH_MACHINE=
 946 if test "$machine" = "alpha"; then
 947   AC_CHECK_DECL([__ELF__])
 948   if test "$ac_cv_have_decl___ELF__" = "yes"; then
 949     ## With ELF, make sure that all common symbols get allocated to in the
 950     ## data section.  Otherwise, the dump of temacs may miss variables in
 951     ## the shared library that have been initialized.  For example, with
 952     ## GNU libc, __malloc_initialized would normally be resolved to the
 953     ## shared library's .bss section, which is fatal.
 954     if test "x$GCC" = "xyes"; then
 955       C_SWITCH_MACHINE="-fno-common"
 956     else
 957       AC_MSG_ERROR([What gives?  Fix me if DEC Unix supports ELF now.])
 958     fi
 959   else
 960     UNEXEC_OBJ=unexalpha.o
 961   fi
 962 fi
 963 AC_SUBST(C_SWITCH_MACHINE)
 964
 965 AC_SUBST(UNEXEC_OBJ)
 966
 967 C_SWITCH_SYSTEM=
 968 ## Some programs in src produce warnings saying certain subprograms
 969 ## are too complex and need a MAXMEM value greater than 2000 for
 970 ## additional optimization.  --nils@exp-math.uni-essen.de
 971 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
 972   C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
 973 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
 974 ## It is redundant in glibc2, since we define _GNU_SOURCE.
 975 AC_SUBST(C_SWITCH_SYSTEM)
 976
 977
 978 LIBS_SYSTEM=
 979 case "$opsys" in
 980   ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
 981   aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
 982
 983   freebsd) LIBS_SYSTEM="-lutil" ;;
 984
 985   hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
 986
 987   sol2*) LIBS_SYSTEM="-lsocket -lnsl -lkstat" ;;
 988
 989   ## Motif needs -lgen.
 990   unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
 991 esac
 992 AC_SUBST(LIBS_SYSTEM)
 993
 994
 995 ### Make sure subsequent tests use flags consistent with the build flags.
 996
 997 if test x"${OVERRIDE_CPPFLAGS}" != x; then
 998   CPPFLAGS="${OVERRIDE_CPPFLAGS}"
 999 else
1000   CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1001 fi
1002
1003 dnl For AC_FUNC_GETLOADAVG, at least:
1004 AC_CONFIG_LIBOBJ_DIR(src)
1005
1006 dnl Do this early because it can frob feature test macros for Unix-98 &c.
1007 AC_SYS_LARGEFILE
1008
1009
1010 ## If user specified a crt-dir, use that unconditionally.
1011 if test "X$CRT_DIR" = "X"; then
1012
1013   case "$canonical" in
1014     x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1015     ## On x86-64 and s390x GNU/Linux distributions, the standard library
1016     ## can be in a variety of places.  We only try /usr/lib64 and /usr/lib.
1017     ## For anything else (eg /usr/lib32), it is up the user to specify
1018     ## the location (bug#5655).
1019     ## Test for crtn.o, not just the directory, because sometimes the
1020     ## directory exists but does not have the relevant files (bug#1287).
1021     ## FIXME better to test for binary compatibility somehow.
1022     test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1023     ;;
1024
1025     powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1026   esac
1027
1028   case "$opsys" in
1029     hpux10-20) CRT_DIR=/lib ;;
1030   esac
1031
1032   ## Default is /usr/lib.
1033   test "X$CRT_DIR" = "X" && CRT_DIR=/usr/lib
1034
1035 else
1036
1037   ## Some platforms don't use any of these files, so it is not
1038   ## appropriate to put this test outside the if block.
1039   test -e $CRT_DIR/crtn.o || test -e $CRT_DIR/crt0.o || \
1040     AC_MSG_ERROR([crt*.o not found in specified location.])
1041
1042 fi
1043
1044 AC_SUBST(CRT_DIR)
1045
1046 LIB_MATH=-lm
1047 LIB_STANDARD=
1048 START_FILES=
1049
1050 case $opsys in
1051   cygwin )
1052     LIB_MATH=
1053     START_FILES='pre-crt0.o'
1054     ;;
1055   darwin )
1056     ## Adding -lm confuses the dynamic linker, so omit it.
1057     LIB_MATH=
1058     START_FILES='pre-crt0.o'
1059     ;;
1060   freebsd )
1061     LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1062     START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1063     ;;
1064   gnu-linux | gnu-kfreebsd )
1065     LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1066     START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1067     ;;
1068   hpux10-20 | hpux11 )
1069     LIB_STANDARD=-lc
1070     START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1071     ;;
1072   netbsd | openbsd )
1073     if test -f $CRT_DIR/crti.o; then
1074         LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1075         START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1076     else
1077         LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1078         START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1079     fi
1080     ;;
1081 esac
1082
1083 AC_SUBST(LIB_MATH)
1084 AC_SUBST(START_FILES)
1085
1086 dnl This function definition taken from Gnome 2.0
1087 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1088 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1089 dnl also defines GSTUFF_PKG_ERRORS on error
1090 AC_DEFUN([PKG_CHECK_MODULES], [
1091   succeeded=no
1092
1093   AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1094
1095   if test "$PKG_CONFIG" = "no" ; then
1096      ifelse([$4], , [AC_MSG_ERROR([
1097       *** 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])
1098   else
1099      PKG_CONFIG_MIN_VERSION=0.9.0
1100      if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1101         AC_MSG_CHECKING(for $2)
1102
1103         if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD; then
1104             AC_MSG_RESULT(yes)
1105             succeeded=yes
1106
1107             AC_MSG_CHECKING($1_CFLAGS)
1108             $1_CFLAGS=`$PKG_CONFIG --cflags "$2"|sed -e 's,///*,/,g'`
1109             AC_MSG_RESULT($$1_CFLAGS)
1110
1111             AC_MSG_CHECKING($1_LIBS)
1112             $1_LIBS=`$PKG_CONFIG --libs "$2"|sed -e 's,///*,/,g'`
1113             AC_MSG_RESULT($$1_LIBS)
1114         else
1115             AC_MSG_RESULT(no)
1116             $1_CFLAGS=""
1117             $1_LIBS=""
1118             ## If we have a custom action on failure, don't print errors, but
1119             ## do set a variable so people can do so.
1120             $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1121             ifelse([$4], ,echo $$1_PKG_ERRORS,)
1122         fi
1123
1124         AC_SUBST($1_CFLAGS)
1125         AC_SUBST($1_LIBS)
1126      else
1127         echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1128         echo "*** See http://www.freedesktop.org/software/pkgconfig"
1129      fi
1130   fi
1131
1132   if test $succeeded = yes; then
1133      ifelse([$3], , :, [$3])
1134   else
1135      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.])], [$4])
1136   fi
1137 ])
1138
1139
1140 if test "${with_sound}" != "no"; then
1141   # Sound support for GNU/Linux and the free BSDs.
1142   AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1143     have_sound_header=yes)
1144   # Emulation library used on NetBSD.
1145   AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1146   AC_SUBST(LIBSOUND)
1147
1148   ALSA_REQUIRED=1.0.0
1149   ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1150   PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1151   if test $HAVE_ALSA = yes; then
1152     SAVE_CFLAGS="$CFLAGS"
1153     SAVE_LDFLAGS="$LDFLAGS"
1154     CFLAGS="$ALSA_CFLAGS $CFLAGS"
1155     LDFLAGS="$ALSA_LIBS $LDFLAGS"
1156     AC_TRY_COMPILE([#include <asoundlib.h>], [snd_lib_error_set_handler (0);],
1157                     emacs_alsa_normal=yes,
1158                     emacs_alsa_normal=no)
1159     if test "$emacs_alsa_normal" != yes; then
1160       AC_TRY_COMPILE([#include <alsa/asoundlib.h>],
1161                      [snd_lib_error_set_handler (0);],
1162                      emacs_alsa_subdir=yes,
1163                      emacs_alsa_subdir=no)
1164       if test "$emacs_alsa_subdir" != yes; then
1165         AC_MSG_ERROR([pkg-config found alsa, but it does not compile.  See config.log for error messages.])
1166       fi
1167       ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1168     fi
1169
1170     CFLAGS="$SAVE_CFLAGS"
1171     LDFLAGS="$SAVE_LDFLAGS"
1172     LIBSOUND="$LIBSOUND $ALSA_LIBS"
1173     CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1174     AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1175   fi
1176
1177   dnl Define HAVE_SOUND if we have sound support.  We know it works and
1178   dnl compiles only on the specified platforms.  For others, it
1179   dnl probably doesn't make sense to try.
1180   if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1181      case "$opsys" in
1182        dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1183        gnu-linux|freebsd|netbsd)
1184          AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1185          ;;
1186      esac
1187   fi
1188
1189   AC_SUBST(CFLAGS_SOUND)
1190 fi
1191
1192 dnl checks for header files
1193 AC_CHECK_HEADERS(sys/select.h sys/time.h unistd.h utime.h \
1194   linux/version.h sys/systeminfo.h limits.h \
1195   stdio_ext.h fcntl.h coff.h pty.h sys/mman.h \
1196   sys/vlimit.h sys/resource.h locale.h sys/_mbstate_t.h \
1197   sys/utsname.h pwd.h utmp.h dirent.h util.h)
1198
1199 AC_MSG_CHECKING(if personality LINUX32 can be set)
1200 AC_TRY_COMPILE([#include <sys/personality.h>], [personality (PER_LINUX32)],
1201                emacs_cv_personality_linux32=yes,
1202                emacs_cv_personality_linux32=no)
1203 AC_MSG_RESULT($emacs_cv_personality_linux32)
1204
1205 if test $emacs_cv_personality_linux32 = yes; then
1206   AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1207             [Define to 1 if personality LINUX32 can be set.])
1208 fi
1209
1210 dnl On Solaris 8 there's a compilation warning for term.h because
1211 dnl it doesn't define `bool'.
1212 AC_CHECK_HEADERS(term.h, , , -)
1213 AC_HEADER_STDC
1214 AC_HEADER_TIME
1215 AC_CHECK_DECLS([sys_siglist])
1216 if test $ac_cv_have_decl_sys_siglist != yes; then
1217   # For Tru64, at least:
1218   AC_CHECK_DECLS([__sys_siglist])
1219   if test $ac_cv_have_decl___sys_siglist = yes; then
1220     AC_DEFINE(sys_siglist, __sys_siglist,
1221               [Define to any substitute for sys_siglist.])
1222   fi
1223 fi
1224 AC_HEADER_SYS_WAIT
1225
1226 dnl Some systems have utime.h but don't declare the struct anyplace.
1227 AC_CACHE_CHECK(for struct utimbuf, emacs_cv_struct_utimbuf,
1228 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
1229 #include <sys/time.h>
1230 #include <time.h>
1231 #else
1232 #ifdef HAVE_SYS_TIME_H
1233 #include <sys/time.h>
1234 #else
1235 #include <time.h>
1236 #endif
1237 #endif
1238 #ifdef HAVE_UTIME_H
1239 #include <utime.h>
1240 #endif], [static struct utimbuf x; x.actime = x.modtime;],
1241   emacs_cv_struct_utimbuf=yes, emacs_cv_struct_utimbuf=no))
1242 if test $emacs_cv_struct_utimbuf = yes; then
1243   AC_DEFINE(HAVE_STRUCT_UTIMBUF, 1, [Define to 1 if `struct utimbuf' is declared by <utime.h>.])
1244 fi
1245
1246 dnl checks for typedefs
1247 AC_TYPE_SIGNAL
1248
1249 dnl Check for speed_t typedef.
1250 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1251   [AC_TRY_COMPILE([#include <termios.h>], [speed_t x = 1;],
1252     emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1253 if test $emacs_cv_speed_t = yes; then
1254   AC_DEFINE(HAVE_SPEED_T, 1,
1255            [Define to 1 if `speed_t' is declared by <termios.h>.])
1256 fi
1257
1258 AC_CACHE_CHECK(for struct timeval, emacs_cv_struct_timeval,
1259 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
1260 #include <sys/time.h>
1261 #include <time.h>
1262 #else
1263 #ifdef HAVE_SYS_TIME_H
1264 #include <sys/time.h>
1265 #else
1266 #include <time.h>
1267 #endif
1268 #endif], [static struct timeval x; x.tv_sec = x.tv_usec;],
1269   emacs_cv_struct_timeval=yes, emacs_cv_struct_timeval=no))
1270 HAVE_TIMEVAL=$emacs_cv_struct_timeval
1271 if test $emacs_cv_struct_timeval = yes; then
1272   AC_DEFINE(HAVE_TIMEVAL, 1, [Define to 1 if `struct timeval' is declared by <sys/time.h>.])
1273 fi
1274
1275 AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1276 AC_TRY_COMPILE([#include <math.h>],
1277 [static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;],
1278   emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1279 HAVE_EXCEPTION=$emacs_cv_struct_exception
1280 if test $emacs_cv_struct_exception != yes; then
1281   AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])
1282 fi
1283
1284 AC_CHECK_HEADERS(sys/socket.h)
1285 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1286 #if HAVE_SYS_SOCKET_H
1287 #include <sys/socket.h>
1288 #endif])
1289
1290 dnl checks for structure members
1291 AC_STRUCT_TM
1292 AC_STRUCT_TIMEZONE
1293 AC_CHECK_MEMBER(struct tm.tm_gmtoff,
1294                 [AC_DEFINE(HAVE_TM_GMTOFF, 1,
1295                            [Define to 1 if `tm_gmtoff' is member of `struct tm'.])],,
1296                 [#include <time.h>])
1297 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1298                   struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1299                   struct ifreq.ifr_addr], , ,
1300                  [AC_INCLUDES_DEFAULT
1301 #if HAVE_SYS_SOCKET_H
1302 #include <sys/socket.h>
1303 #endif
1304 #if HAVE_NET_IF_H
1305 #include <net/if.h>
1306 #endif])
1307
1308 dnl checks for compiler characteristics
1309
1310 dnl Testing __STDC__ to determine prototype support isn't good enough.
1311 dnl DEC C, for instance, doesn't define it with default options, and
1312 dnl is used on 64-bit systems (OSF Alphas).  Similarly for volatile
1313 dnl and void *.
1314 AC_C_PROTOTYPES
1315 AC_C_VOLATILE
1316 AC_C_CONST
1317 dnl This isn't useful because we can't turn on use of `inline' unless
1318 dnl the compiler groks `extern inline'.
1319 dnl AC_C_INLINE
1320 AC_CACHE_CHECK([for void * support], emacs_cv_void_star,
1321   [AC_TRY_COMPILE(, [void * foo;],
1322                    emacs_cv_void_star=yes, emacs_cv_void_star=no)])
1323 if test $emacs_cv_void_star = yes; then
1324   AC_DEFINE(POINTER_TYPE, void)
1325 else
1326   AC_DEFINE(POINTER_TYPE, char)
1327 fi
1328 AH_TEMPLATE(POINTER_TYPE,
1329             [Define as `void' if your compiler accepts `void *'; otherwise
1330              define as `char'.])dnl
1331
1332 dnl Check for endianess
1333 AC_C_BIGENDIAN
1334
1335 AC_CACHE_CHECK([for  __attribute__ ((__aligned__ (expr)))],
1336   [emacs_cv_attribute_aligned],
1337   [AC_COMPILE_IFELSE(
1338      [AC_LANG_PROGRAM(
1339         [[char __attribute__ ((__aligned__ (1 << 3))) c;]],
1340         [[]])],
1341      [emacs_cv_attribute_aligned=yes],
1342      [emacs_cv_attribute_aligned=no])])
1343 if test $emacs_cv_attribute_aligned = yes; then
1344   AC_DEFINE([HAVE_ATTRIBUTE_ALIGNED], 1,
1345     [Define to 1 if GCC-style __attribute__ ((__aligned__ (expr))) works.])
1346 fi
1347
1348 dnl check for Make feature
1349 AC_PROG_MAKE_SET
1350
1351 DEPFLAGS=
1352 MKDEPDIR=":"
1353 deps_frag=deps.mk
1354 dnl check for GNU Make if we have GCC and autodepend is on.
1355 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1356    AC_MSG_CHECKING([whether we are using GNU Make])
1357    HAVE_GNU_MAKE=no
1358    testval=`make --version 2>/dev/null | grep 'GNU Make'`
1359    if test "x$testval" != x; then
1360       HAVE_GNU_MAKE=yes
1361    else
1362       ac_enable_autodepend=no
1363    fi
1364    AC_MSG_RESULT([$HAVE_GNU_MAKE])
1365    if test $HAVE_GNU_MAKE = yes; then
1366       AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1367       SAVE_CFLAGS="$CFLAGS"
1368       CFLAGS="$CFLAGS -MMD -MF deps.d"
1369       AC_TRY_COMPILE([], [], , ac_enable_autodepend=no)
1370       CFLAGS="$SAVE_CFLAGS"
1371       test -f deps.d || ac_enable_autodepend=no
1372       rm -rf deps.d
1373       AC_MSG_RESULT([$ac_enable_autodepend])
1374    fi
1375    if test $ac_enable_autodepend = yes; then
1376       DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d'
1377       ## In parallel builds, another make might create depdir between
1378       ## the first test and mkdir, so stick another test on the end.
1379       ## Or use mkinstalldirs?  mkdir -p is not portable.
1380       MKDEPDIR='test -d ${DEPDIR} || mkdir ${DEPDIR} || test -d ${DEPDIR}'
1381       deps_frag=autodeps.mk
1382    fi
1383 fi
1384 deps_frag=$srcdir/src/$deps_frag
1385 AC_SUBST(MKDEPDIR)
1386 AC_SUBST(DEPFLAGS)
1387 AC_SUBST_FILE(deps_frag)
1388
1389
1390 dnl checks for operating system services
1391 AC_SYS_LONG_FILE_NAMES
1392
1393 #### Choose a window system.
1394
1395 AC_PATH_X
1396 if test "$no_x" = yes; then
1397   window_system=none
1398 else
1399   window_system=x11
1400 fi
1401
1402 ## Workaround for bug in autoconf <= 2.62.
1403 ## http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01551.html
1404 ## No need to do anything special for these standard directories.
1405 if test -n "${x_libraries}" && test x"${x_libraries}" != xNONE; then
1406
1407    x_libraries=`echo :${x_libraries}: | sed -e 's|:/usr/lib64:|:|g' -e 's|:/lib64:|:|g' -e 's|^:||' -e 's|:$||'`
1408
1409 fi
1410
1411 LD_SWITCH_X_SITE_AUX=
1412 LD_SWITCH_X_SITE_AUX_RPATH=
1413 if test "${x_libraries}" != NONE; then
1414   if test -n "${x_libraries}"; then
1415     LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1416     LD_SWITCH_X_SITE_AUX=-R`echo ${x_libraries} | sed -e "s/:/ -R/g"`
1417     LD_SWITCH_X_SITE_AUX_RPATH=`echo ${LD_SWITCH_X_SITE_AUX} | sed -e 's/-R/-Wl,-rpath,/'`
1418   fi
1419   x_default_search_path=""
1420   x_search_path=${x_libraries}
1421   if test -z "${x_search_path}"; then
1422     x_search_path=/usr/lib
1423   fi
1424   for x_library in `echo ${x_search_path}: | \
1425                     sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1426     x_search_path="\
1427 ${x_library}/X11/%L/%T/%N%C%S:\
1428 ${x_library}/X11/%l/%T/%N%C%S:\
1429 ${x_library}/X11/%T/%N%C%S:\
1430 ${x_library}/X11/%L/%T/%N%S:\
1431 ${x_library}/X11/%l/%T/%N%S:\
1432 ${x_library}/X11/%T/%N%S"
1433     if test x"${x_default_search_path}" = x; then
1434       x_default_search_path=${x_search_path}
1435     else
1436       x_default_search_path="${x_search_path}:${x_default_search_path}"
1437     fi
1438   done
1439 fi
1440 AC_SUBST(LD_SWITCH_X_SITE_AUX)
1441 AC_SUBST(LD_SWITCH_X_SITE_AUX_RPATH)
1442
1443 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1444   C_SWITCH_X_SITE=-I`echo ${x_includes} | sed -e "s/:/ -I/g"`
1445 fi
1446
1447 if test x"${x_includes}" = x; then
1448   bitmapdir=/usr/include/X11/bitmaps
1449 else
1450   # accumulate include directories that have X11 bitmap subdirectories
1451   bmd_acc="dummyval"
1452   for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1453     if test -d "${bmd}/X11/bitmaps"; then
1454       bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1455     fi
1456     if test -d "${bmd}/bitmaps"; then
1457       bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1458     fi
1459   done
1460   if test ${bmd_acc} != "dummyval"; then
1461     bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1462   fi
1463 fi
1464
1465 HAVE_NS=no
1466 NS_IMPL_COCOA=no
1467 NS_IMPL_GNUSTEP=no
1468 tmp_CPPFLAGS="$CPPFLAGS"
1469 tmp_CFLAGS="$CFLAGS"
1470 CPPFLAGS="$CPPFLAGS -x objective-c"
1471 CFLAGS="$CFLAGS -x objective-c"
1472 TEMACS_LDFLAGS2="\${LDFLAGS}"
1473 dnl I don't think it's especially important, but src/Makefile.in
1474 dnl (now the only user of ns_appdir) used to go to the trouble of adding a
1475 dnl trailing "/" to it, so now we do it here.
1476 if test "${with_ns}" != no; then
1477   if test "${opsys}" = darwin; then
1478      NS_IMPL_COCOA=yes
1479      ns_appdir=`pwd`/nextstep/Emacs.app
1480      ns_appbindir=${ns_appdir}/Contents/MacOS/
1481      ns_appresdir=${ns_appdir}/Contents/Resources
1482      ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base
1483   elif test -f $GNUSTEP_CONFIG_FILE; then
1484      NS_IMPL_GNUSTEP=yes
1485      ns_appdir=`pwd`/nextstep/Emacs.app
1486      ns_appbindir=${ns_appdir}/
1487      ns_appresdir=${ns_appdir}/Resources
1488      ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base
1489      dnl FIXME sourcing this several times in subshells seems inefficient.
1490      GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1491      GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1492      dnl I seemed to need these as well with GNUstep-startup 0.25.
1493      GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1494      GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1495      test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1496        GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1497      test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1498        GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1499      CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1500      CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1501      LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1502      LIB_STANDARD=
1503      START_FILES=
1504      TEMACS_LDFLAGS2=
1505   fi
1506   AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1507                   [AC_MSG_ERROR([`--with-ns' was specified, but the include
1508   files are missing or cannot be compiled.])])
1509   NS_HAVE_NSINTEGER=yes
1510   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1511                                      [NSInteger i;])],
1512                     ns_have_nsinteger=yes,
1513                     ns_have_nsinteger=no)
1514   if test $ns_have_nsinteger = no; then
1515     NS_HAVE_NSINTEGER=no
1516   fi
1517 fi
1518 AC_SUBST(TEMACS_LDFLAGS2)
1519
1520 ns_frag=/dev/null
1521 NS_OBJ=
1522 NS_SUPPORT=
1523 if test "${HAVE_NS}" = yes; then
1524   window_system=nextstep
1525   with_xft=no
1526   # set up packaging dirs
1527   exec_prefix=${ns_appbindir}
1528   libexecdir=${ns_appbindir}/libexec
1529   if test "${EN_NS_SELF_CONTAINED}" = yes; then
1530      prefix=${ns_appresdir}
1531   fi
1532   ns_frag=$srcdir/src/ns.mk
1533   NS_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o fontset.o fringe.o image.o"
1534   NS_SUPPORT="\${lispsource}/emacs-lisp/easymenu.elc \${lispsource}/term/ns-win.elc"
1535 fi
1536 CFLAGS="$tmp_CFLAGS"
1537 CPPFLAGS="$tmp_CPPFLAGS"
1538 AC_SUBST(NS_OBJ)
1539 AC_SUBST(NS_SUPPORT)
1540 AC_SUBST(LIB_STANDARD)
1541 AC_SUBST_FILE(ns_frag)
1542
1543 case "${window_system}" in
1544   x11 )
1545     HAVE_X_WINDOWS=yes
1546     HAVE_X11=yes
1547     case "${with_x_toolkit}" in
1548       athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1549       motif ) USE_X_TOOLKIT=MOTIF ;;
1550       gtk ) with_gtk=yes
1551 dnl Dont set this for GTK.  A lot of tests below assumes Xt when
1552 dnl USE_X_TOOLKIT is set.
1553             USE_X_TOOLKIT=none ;;
1554       gtk3 ) with_gtk3=yes
1555              USE_X_TOOLKIT=none ;;
1556       no ) USE_X_TOOLKIT=none ;;
1557 dnl If user did not say whether to use a toolkit, make this decision later:
1558 dnl use the toolkit if we have gtk, or X11R5 or newer.
1559       * ) USE_X_TOOLKIT=maybe ;;
1560     esac
1561   ;;
1562   nextstep | none )
1563     HAVE_X_WINDOWS=no
1564     HAVE_X11=no
1565     USE_X_TOOLKIT=none
1566   ;;
1567 esac
1568
1569 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1570    AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1571    if test "$HAVE_XSERVER" = true ||
1572       test -n "$DISPLAY" ||
1573       test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1574         AC_MSG_ERROR([You seem to be running X, but no X development libraries
1575 were found.  You should install the relevant development files for X
1576 and for the toolkit you want, such as Gtk+, Lesstif or Motif.  Also make
1577 sure you have development files for image handling, i.e.
1578 tiff, gif, jpeg, png and xpm.
1579 If you are sure you want Emacs compiled without X window support, pass
1580   --without-x
1581 to configure.])
1582    fi
1583 fi
1584
1585 ### If we're using X11, we should use the X menu package.
1586 HAVE_MENUS=no
1587 case ${HAVE_X11} in
1588   yes ) HAVE_MENUS=yes ;;
1589 esac
1590
1591 # Do the opsystem or machine files prohibit the use of the GNU malloc?
1592 # Assume not, until told otherwise.
1593 GNU_MALLOC=yes
1594 doug_lea_malloc=yes
1595 AC_CHECK_FUNC(malloc_get_state, ,doug_lea_malloc=no)
1596 AC_CHECK_FUNC(malloc_set_state, ,doug_lea_malloc=no)
1597 AC_CACHE_CHECK(whether __after_morecore_hook exists,
1598                emacs_cv_var___after_morecore_hook,
1599 [AC_TRY_LINK([extern void (* __after_morecore_hook)();],[__after_morecore_hook = 0],
1600   emacs_cv_var___after_morecore_hook=yes,
1601   emacs_cv_var___after_morecore_hook=no)])
1602 if test $emacs_cv_var___after_morecore_hook = no; then
1603   doug_lea_malloc=no
1604 fi
1605
1606
1607 dnl See comments in aix4-2.h about maybe using system malloc there.
1608 system_malloc=no
1609 case "$opsys" in
1610   ## darwin ld insists on the use of malloc routines in the System framework.
1611   darwin|sol2-10) system_malloc=yes ;;
1612 esac
1613
1614 if test "${system_malloc}" = "yes"; then
1615   AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1616   GNU_MALLOC=no
1617   GNU_MALLOC_reason="
1618     (The GNU allocators don't work with this system configuration.)"
1619   GMALLOC_OBJ=
1620   VMLIMIT_OBJ=
1621 else
1622   test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1623   VMLIMIT_OBJ=vm-limit.o
1624 fi
1625 AC_SUBST(GMALLOC_OBJ)
1626 AC_SUBST(VMLIMIT_OBJ)
1627
1628 if test "$doug_lea_malloc" = "yes" ; then
1629   if test "$GNU_MALLOC" = yes ; then
1630     GNU_MALLOC_reason="
1631       (Using Doug Lea's new malloc from the GNU C Library.)"
1632   fi
1633   AC_DEFINE(DOUG_LEA_MALLOC, 1,
1634             [Define to 1 if you are using the GNU C Library.])
1635
1636   ## Use mmap directly for allocating larger buffers.
1637   ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1638   ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1639   ## Does the AC_FUNC_MMAP test below make this check unecessary?
1640   case "$opsys" in
1641     gnu*) REL_ALLOC=no ;;
1642   esac
1643 fi
1644
1645 if test x"${REL_ALLOC}" = x; then
1646   REL_ALLOC=${GNU_MALLOC}
1647 fi
1648
1649 use_mmap_for_buffers=no
1650 case "$opsys" in
1651   freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1652 esac
1653
1654 AC_FUNC_MMAP
1655 if test $use_mmap_for_buffers = yes; then
1656   AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1657   REL_ALLOC=no
1658 fi
1659
1660 LIBS="$LIBS_SYSTEM $LIBS"
1661
1662 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1663 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1664 AC_CHECK_LIB(dnet, dnet_ntoa)
1665 dnl This causes -lresolv to get used in subsequent tests,
1666 dnl which causes failures on some systems such as HPUX 9.
1667 dnl AC_CHECK_LIB(resolv, gethostbyname)
1668
1669 dnl FIXME replace main with a function we actually want from this library.
1670 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1671
1672 AC_CHECK_LIB(pthreads, cma_open)
1673
1674 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1675 ## HAVE_LIBPTHREADS.  That was not defined earlier in configure when
1676 ## the system file was sourced.  Hence the value of LIBS_SYSTEM
1677 ## added to LIBS in configure would never contain the pthreads part,
1678 ## but the value used in Makefiles might.  FIXME?
1679 ##
1680 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1681 ## be harmless on older versions of X where it happens to exist.
1682 test "$opsys" = "aix4-2" && \
1683   test $ac_cv_lib_pthreads_cma_open = yes && \
1684   LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1685
1686 dnl Check for need for bigtoc support on IBM AIX
1687
1688 case ${host_os} in
1689 aix*)
1690   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1691     case $GCC in
1692     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1693     *) gdb_cv_bigtoc=-bbigtoc ;;
1694     esac
1695
1696     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1697     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1698   ])
1699   ;;
1700 esac
1701
1702 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1703 # used for the tests that follow.  We set them back to REAL_CFLAGS and
1704 # REAL_CPPFLAGS later on.
1705
1706 REAL_CFLAGS="$CFLAGS"
1707 REAL_CPPFLAGS="$CPPFLAGS"
1708
1709 if test "${HAVE_X11}" = "yes"; then
1710   DEFS="$C_SWITCH_X_SITE $DEFS"
1711   LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1712   LIBS="-lX11 $LIBS"
1713   CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1714   CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1715
1716   # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1717   # This is handled by LD_SWITCH_X_SITE_AUX during the real build,
1718   # but it's more convenient here to set LD_RUN_PATH
1719   # since this also works on hosts that don't understand LD_SWITCH_X_SITE_AUX.
1720   if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1721     LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1722     export LD_RUN_PATH
1723   fi
1724
1725   if test "${opsys}" = "gnu-linux"; then
1726     AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1727     AC_TRY_LINK([],
1728      [XOpenDisplay ("foo");],
1729      [xlinux_first_failure=no],
1730      [xlinux_first_failure=yes])
1731     if test "${xlinux_first_failure}" = "yes"; then
1732       OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1733       OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1734       OLD_CPPFLAGS="$CPPFLAGS"
1735       OLD_LIBS="$LIBS"
1736       LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1737       C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1738       CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1739       LIBS="$LIBS -b i486-linuxaout"
1740       AC_TRY_LINK([],
1741        [XOpenDisplay ("foo");],
1742        [xlinux_second_failure=no],
1743        [xlinux_second_failure=yes])
1744       if test "${xlinux_second_failure}" = "yes"; then
1745         # If we get the same failure with -b, there is no use adding -b.
1746         # So take it out.  This plays safe.
1747         LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1748         C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1749         CPPFLAGS="$OLD_CPPFLAGS"
1750         LIBS="$OLD_LIBS"
1751         AC_MSG_RESULT(no)
1752       else
1753         AC_MSG_RESULT(yes)
1754       fi
1755     else
1756       AC_MSG_RESULT(no)
1757     fi
1758   fi
1759
1760   # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1761   # header files included from there.
1762   AC_MSG_CHECKING(for Xkb)
1763   AC_TRY_LINK([#include <X11/Xlib.h>
1764 #include <X11/XKBlib.h>],
1765         [XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);],
1766         emacs_xkb=yes, emacs_xkb=no)
1767   AC_MSG_RESULT($emacs_xkb)
1768   if test $emacs_xkb = yes; then
1769     AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1770   fi
1771
1772   AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1773 XScreenNumberOfScreen XSetWMProtocols)
1774 fi
1775
1776 if test "${window_system}" = "x11"; then
1777   AC_MSG_CHECKING(X11 version 6)
1778   AC_CACHE_VAL(emacs_cv_x11_version_6,
1779   [AC_TRY_LINK([#include <X11/Xlib.h>],
1780 [#if XlibSpecificationRelease < 6
1781 fail;
1782 #endif
1783 ], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1784   if test $emacs_cv_x11_version_6 = yes; then
1785     AC_MSG_RESULT(6 or newer)
1786     AC_DEFINE(HAVE_X11R6, 1,
1787               [Define to 1 if you have the X11R6 or newer version of Xlib.])
1788     AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1789     ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1790     ## XIM support.
1791     case "$opsys" in
1792       sol2-*) : ;;
1793       *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1794            [Define if you have usable X11R6-style XIM support.])
1795          ;;
1796     esac
1797   else
1798     AC_MSG_RESULT(before 6)
1799   fi
1800 fi
1801
1802
1803 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1804 HAVE_RSVG=no
1805 if test "${HAVE_X11}" = "yes" || test "${NS_IMPL_GNUSTEP}" = "yes"; then
1806   if test "${with_rsvg}" != "no"; then
1807     RSVG_REQUIRED=2.11.0
1808     RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1809
1810     PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1811     AC_SUBST(RSVG_CFLAGS)
1812     AC_SUBST(RSVG_LIBS)
1813
1814     if test $HAVE_RSVG = yes; then
1815       AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1816       CFLAGS="$CFLAGS $RSVG_CFLAGS"
1817       LIBS="$RSVG_LIBS $LIBS"
1818     fi
1819   fi
1820 fi
1821
1822 HAVE_IMAGEMAGICK=no
1823 if test "${HAVE_X11}" = "yes"; then
1824   if test "${with_imagemagick}" != "no"; then
1825     IMAGEMAGICK_MODULE="Wand"
1826     PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1827     AC_SUBST(IMAGEMAGICK_CFLAGS)
1828     AC_SUBST(IMAGEMAGICK_LIBS)
1829
1830     if test $HAVE_IMAGEMAGICK = yes; then
1831       AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1832       CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1833       LIBS="$IMAGEMAGICK_LIBS $LIBS"
1834       AC_CHECK_FUNCS(MagickExportImagePixels)
1835     fi
1836   fi
1837 fi
1838
1839
1840 HAVE_GTK=no
1841 if test "${with_gtk3}" = "yes"; then
1842   GLIB_REQUIRED=2.6
1843   GTK_REQUIRED=2.90
1844   GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1845
1846   dnl Checks for libraries.
1847   PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1848   if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1849      AC_MSG_ERROR($GTK_PKG_ERRORS)
1850   fi
1851 fi
1852
1853 if test "$pkg_check_gtk" != "yes"; then
1854   HAVE_GTK=no
1855 if test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1856   GLIB_REQUIRED=2.6
1857   GTK_REQUIRED=2.6
1858   GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1859
1860   dnl Checks for libraries.
1861   PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1862   if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1863      AC_MSG_ERROR($GTK_PKG_ERRORS)
1864   fi
1865 fi
1866 fi
1867
1868 GTK_OBJ=
1869 if test x"$pkg_check_gtk" = xyes; then
1870
1871   AC_SUBST(GTK_CFLAGS)
1872   AC_SUBST(GTK_LIBS)
1873   C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1874   CFLAGS="$CFLAGS $GTK_CFLAGS"
1875   LIBS="$GTK_LIBS $LIBS"
1876   dnl Try to compile a simple GTK program.
1877   GTK_COMPILES=no
1878   AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1879   if test "${GTK_COMPILES}" != "yes"; then
1880     if test "$USE_X_TOOLKIT" != "maybe"; then
1881       AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log.  Maybe some x11-devel files missing?]);
1882     fi
1883   else
1884     HAVE_GTK=yes
1885     AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1886     GTK_OBJ=gtkutil.o
1887     USE_X_TOOLKIT=none
1888     if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1889       :
1890     else
1891       AC_MSG_WARN([[Your version of Gtk+ will have problems with
1892        closing open displays.  This is no problem if you just use
1893        one display, but if you use more than one and close one of them
1894        Emacs may crash.]])
1895       sleep 3
1896     fi
1897   fi
1898
1899 fi
1900 AC_SUBST(GTK_OBJ)
1901
1902
1903 if test "${HAVE_GTK}" = "yes"; then
1904
1905   dnl  GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1906   dnl  a lot if #ifdef:s, say we have toolkit scrollbars.
1907   if test "$with_toolkit_scroll_bars" != no; then
1908     with_toolkit_scroll_bars=yes
1909   fi
1910
1911   dnl  Check if we have the old file selection dialog declared and
1912   dnl  in the link library.  In 2.x it may be in the library,
1913   dnl  but not declared if deprecated featured has been selected out.
1914   dnl  AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1915   HAVE_GTK_FILE_SELECTION=no
1916   AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1917                    HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1918 #include <gtk/gtk.h>])
1919   if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1920     AC_CHECK_FUNCS(gtk_file_selection_new)
1921   fi
1922
1923   dnl Check if pthreads are available.  Emacs only needs this when using
1924   dnl gtk_file_chooser under Gnome.
1925     HAVE_GTK_AND_PTHREAD=no
1926     AC_CHECK_HEADERS(pthread.h)
1927     if test "$ac_cv_header_pthread_h"; then
1928       AC_CHECK_LIB(pthread, pthread_self, HAVE_GTK_AND_PTHREAD=yes)
1929     fi
1930     if test "$HAVE_GTK_AND_PTHREAD" = yes; then
1931       case "${canonical}" in
1932         *-hpux*) ;;
1933         *) GTK_LIBS="$GTK_LIBS -lpthread" ;;
1934       esac
1935       AC_DEFINE(HAVE_GTK_AND_PTHREAD, 1,
1936                [Define to 1 if you have GTK and pthread (-lpthread).])
1937     fi
1938
1939   dnl Check for functions introduced in 2.14 and later.
1940   AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
1941                  gtk_dialog_get_action_area gtk_widget_get_sensitive \
1942                  gtk_widget_get_mapped gtk_adjustment_get_page_size \
1943                  gtk_orientable_set_orientation)
1944
1945 fi
1946
1947 dnl D-Bus has been tested under GNU/Linux only.  Must be adapted for
1948 dnl other platforms.  Support for higher D-Bus versions than 1.0 is
1949 dnl also not configured.
1950 HAVE_DBUS=no
1951 DBUS_OBJ=
1952 if test "${with_dbus}" = "yes"; then
1953    PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
1954    if test "$HAVE_DBUS" = yes; then
1955      LIBS="$LIBS $DBUS_LIBS"
1956      AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
1957      AC_CHECK_FUNCS([dbus_watch_get_unix_fd])
1958      DBUS_OBJ=dbusbind.o
1959    fi
1960 fi
1961 AC_SUBST(DBUS_OBJ)
1962
1963 dnl GConf has been tested under GNU/Linux only.
1964 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
1965 HAVE_GCONF=no
1966 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
1967    PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
1968    if test "$HAVE_GCONF" = yes; then
1969       AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
1970       dnl Newer GConf doesn't link with g_objects, so this is not defined.
1971       AC_CHECK_FUNCS([g_type_init])
1972    fi
1973 fi
1974
1975 dnl SELinux is available for GNU/Linux only.
1976 HAVE_LIBSELINUX=no
1977 LIBSELINUX_LIBS=
1978 if test "${with_selinux}" = "yes"; then
1979    AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
1980    if test "$HAVE_LIBSELINUX" = yes; then
1981       AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
1982       LIBSELINUX_LIBS=-lselinux
1983    fi
1984 fi
1985 AC_SUBST(LIBSELINUX_LIBS)
1986
1987 HAVE_GNUTLS=no
1988 if test "${with_gnutls}" = "yes" ; then
1989   PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.2.4], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
1990   if test "${HAVE_GNUTLS}" = "yes"; then
1991     AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
1992   fi
1993 fi
1994 AC_SUBST(LIBGNUTLS_LIBS)
1995 AC_SUBST(LIBGNUTLS_CFLAGS)
1996
1997 dnl Do not put whitespace before the #include statements below.
1998 dnl Older compilers (eg sunos4 cc) choke on it.
1999 HAVE_XAW3D=no
2000 LUCID_LIBW=
2001 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2002   if test "$with_xaw3d" != no; then
2003     AC_MSG_CHECKING(for xaw3d)
2004     AC_CACHE_VAL(emacs_cv_xaw3d,
2005     [AC_TRY_LINK([
2006 #include <X11/Intrinsic.h>
2007 #include <X11/Xaw3d/Simple.h>],
2008       [],
2009       emacs_cv_xaw3d=yes,
2010       emacs_cv_xaw3d=no)])
2011   else
2012     emacs_cv_xaw3d=no
2013   fi
2014   if test $emacs_cv_xaw3d = yes; then
2015     AC_MSG_RESULT([yes; using Lucid toolkit])
2016     USE_X_TOOLKIT=LUCID
2017     HAVE_XAW3D=yes
2018     LUCID_LIBW=-lXaw3d
2019     AC_DEFINE(HAVE_XAW3D, 1,
2020               [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2021   else
2022     AC_MSG_RESULT(no)
2023     AC_MSG_CHECKING(for libXaw)
2024     AC_CACHE_VAL(emacs_cv_xaw,
2025     [AC_TRY_LINK([
2026 #include <X11/Intrinsic.h>
2027 #include <X11/Xaw/Simple.h>],
2028       [],
2029       emacs_cv_xaw=yes,
2030       emacs_cv_xaw=no)])
2031     if test $emacs_cv_xaw = yes; then
2032       AC_MSG_RESULT([yes; using Lucid toolkit])
2033       USE_X_TOOLKIT=LUCID
2034       LUCID_LIBW=-lXaw
2035     elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2036       AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2037     else
2038       AC_MSG_RESULT([no; do not use toolkit by default])
2039       USE_X_TOOLKIT=none
2040     fi
2041   fi
2042 fi
2043
2044 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2045
2046 LIBXTR6=
2047 if test "${USE_X_TOOLKIT}" != "none"; then
2048   AC_MSG_CHECKING(X11 toolkit version)
2049   AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2050   [AC_TRY_LINK([#include <X11/Intrinsic.h>],
2051 [#if XtSpecificationRelease < 6
2052 fail;
2053 #endif
2054 ], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2055   HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2056   if test $emacs_cv_x11_toolkit_version_6 = yes; then
2057     AC_MSG_RESULT(6 or newer)
2058     AC_DEFINE(HAVE_X11XTR6, 1,
2059               [Define to 1 if you have the X11R6 or newer version of Xt.])
2060     LIBXTR6="-lSM -lICE"
2061     case "$opsys" in
2062       ## Use libw.a along with X11R6 Xt.
2063       unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2064     esac
2065   else
2066     AC_MSG_RESULT(before 6)
2067   fi
2068
2069 dnl If using toolkit, check whether libXmu.a exists.
2070 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2071   OLDLIBS="$LIBS"
2072   if test x$HAVE_X11XTR6 = xyes; then
2073     LIBS="-lXt -lSM -lICE $LIBS"
2074   else
2075     LIBS="-lXt $LIBS"
2076   fi
2077   AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2078   test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2079 fi
2080 AC_SUBST(LIBXTR6)
2081
2082 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2083 dnl Why not just test for libxmu in the normal way?
2084 LIBXMU=-lXmu
2085 case $opsys in
2086   ## These systems don't supply Xmu.
2087   hpux* | aix4-2 )
2088     test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2089     ;;
2090 esac
2091 AC_SUBST(LIBXMU)
2092
2093 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2094 if test "${HAVE_X11}" = "yes"; then
2095   if test "${USE_X_TOOLKIT}" != "none"; then
2096     AC_CHECK_LIB(Xext, XShapeQueryExtension)
2097   fi
2098 fi
2099
2100 LIBXP=
2101 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2102   AC_CACHE_CHECK(for Motif version 2.1, emacs_cv_motif_version_2_1,
2103   [AC_TRY_COMPILE([#include <Xm/Xm.h>],
2104     [#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2105 int x = 5;
2106 #else
2107 Motif version prior to 2.1.
2108 #endif],
2109     emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2110   if test $emacs_cv_motif_version_2_1 = yes; then
2111     AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2112   else
2113     AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2114     # We put this in CFLAGS temporarily to precede other -I options
2115     # that might be in CFLAGS temporarily.
2116     # We put this in CPPFLAGS where it precedes the other -I options.
2117     OLD_CPPFLAGS=$CPPFLAGS
2118     OLD_CFLAGS=$CFLAGS
2119     CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2120     CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2121     [AC_TRY_COMPILE([#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>],
2122       [int x = 5;],
2123       emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2124     if test $emacs_cv_lesstif = yes; then
2125       # Make sure this -I option remains in CPPFLAGS after it is set
2126       # back to REAL_CPPFLAGS.
2127       # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2128       # have those other -I options anyway.  Ultimately, having this
2129       # directory ultimately in CPPFLAGS will be enough.
2130       REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2131       LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2132     else
2133       CFLAGS=$OLD_CFLAGS
2134       CPPFLAGS=$OLD_CPPFLAGS
2135     fi
2136   fi
2137 fi
2138
2139 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2140 dnl using Motif or Xaw3d is available, and unless
2141 dnl --with-toolkit-scroll-bars=no was specified.
2142
2143 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2144             [Define to 1 if we should use toolkit scroll bars.])dnl
2145 USE_TOOLKIT_SCROLL_BARS=no
2146 if test "${with_toolkit_scroll_bars}" != "no"; then
2147   if test "${USE_X_TOOLKIT}" != "none"; then
2148     if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2149       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2150       HAVE_XAW3D=no
2151       USE_TOOLKIT_SCROLL_BARS=yes
2152     elif test "${HAVE_XAW3D}" = "yes"; then
2153       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2154       USE_TOOLKIT_SCROLL_BARS=yes
2155     fi
2156   elif test "${HAVE_GTK}" = "yes"; then
2157     AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2158     USE_TOOLKIT_SCROLL_BARS=yes
2159   elif test "${HAVE_NS}" = "yes"; then
2160     AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2161     USE_TOOLKIT_SCROLL_BARS=yes
2162   fi
2163 fi
2164
2165 dnl See if XIM is available.
2166 AC_TRY_COMPILE([
2167           #include <X11/Xlib.h>
2168           #include <X11/Xresource.h>],
2169          [XIMProc  callback;],
2170          [HAVE_XIM=yes
2171          AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2172          HAVE_XIM=no)
2173
2174 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2175
2176 if test "${with_xim}" != "no"; then
2177   AC_DEFINE(USE_XIM, 1,
2178             [Define to 1 if we should use XIM, if it is available.])
2179 fi
2180
2181
2182 if test "${HAVE_XIM}" != "no"; then
2183   late_CFLAGS=$CFLAGS
2184   if test "$GCC" = yes; then
2185     CFLAGS="$CFLAGS --pedantic-errors"
2186   fi
2187   AC_TRY_COMPILE([
2188 #include <X11/Xlib.h>
2189 #include <X11/Xresource.h>],
2190 [Display *display;
2191 XrmDatabase db;
2192 char *res_name;
2193 char *res_class;
2194 XIMProc  callback;
2195 XPointer *client_data;
2196 #ifndef __GNUC__
2197 /* If we're not using GCC, it's probably not XFree86, and this is
2198    probably right, but we can't use something like --pedantic-errors.  */
2199 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2200                                            char*, XIMProc, XPointer*);
2201 #endif
2202 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2203    client_data);],
2204     [emacs_cv_arg6_star=yes])
2205   AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2206          [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2207 either XPointer or XPointer*.])dnl
2208   if test "$emacs_cv_arg6_star" = yes; then
2209     AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2210   else
2211     AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2212   fi
2213   CFLAGS=$late_CFLAGS
2214 fi
2215
2216 ### Start of font-backend (under any platform) section.
2217 # (nothing here yet -- this is a placeholder)
2218 ### End of font-backend (under any platform) section.
2219
2220 ### Start of font-backend (under X11) section.
2221 if test "${HAVE_X11}" = "yes"; then
2222    PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2223
2224    ## Use -lXft if available, unless `--with-xft=no'.
2225    HAVE_XFT=maybe
2226     if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2227       with_xft="no";
2228     fi
2229     if test "x${with_xft}" != "xno"; then
2230
2231       PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2232       ## Because xftfont.c uses XRenderQueryExtension, we also
2233       ## need to link to -lXrender.
2234       HAVE_XRENDER=no
2235       AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2236       if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2237         OLD_CPPFLAGS="$CPPFLAGS"
2238         OLD_CFLAGS="$CFLAGS"
2239         OLD_LIBS="$LIBS"
2240         CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2241         CFLAGS="$CFLAGS $XFT_CFLAGS"
2242         XFT_LIBS="-lXrender $XFT_LIBS"
2243         LIBS="$XFT_LIBS $LIBS"
2244         AC_CHECK_HEADER(X11/Xft/Xft.h,
2245           AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2246
2247         if test "${HAVE_XFT}" = "yes"; then
2248           AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2249             AC_SUBST(XFT_LIBS)
2250           C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2251         else
2252           CPPFLAGS="$OLD_CPPFLAGS"
2253           CFLAGS="$OLD_CFLAGS"
2254           LIBS="$OLD_LIBS"
2255         fi                        # "${HAVE_XFT}" = "yes"
2256       fi                          # "$HAVE_XFT" != no
2257     fi                            # "x${with_xft}" != "xno"
2258
2259     dnl For the "Does Emacs use" message at the end.
2260     if test "$HAVE_XFT" != "yes"; then
2261        HAVE_XFT=no
2262     fi
2263
2264     ## We used to allow building with FreeType and without Xft.
2265     ## However, the ftx font backend driver is not in good shape.
2266     HAVE_FREETYPE=$HAVE_XFT
2267
2268     HAVE_LIBOTF=no
2269     if test "${HAVE_FREETYPE}" = "yes"; then
2270       AC_DEFINE(HAVE_FREETYPE, 1,
2271                 [Define to 1 if using the freetype and fontconfig libraries.])
2272       if test "${with_libotf}" != "no"; then
2273         PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2274                           HAVE_LIBOTF=no)
2275         if test "$HAVE_LIBOTF" = "yes"; then
2276           AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2277           AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2278                        HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2279                        HAVE_OTF_GET_VARIATION_GLYPHS=no)
2280           if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2281             AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2282                       [Define to 1 if libotf has OTF_get_variation_glyphs.])
2283           fi
2284         fi
2285       fi
2286     dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2287     dnl Does the new font backend require it, or can it work without it?
2288     fi
2289
2290     HAVE_M17N_FLT=no
2291     if test "${HAVE_LIBOTF}" = yes; then
2292       if test "${with_m17n_flt}" != "no"; then
2293         PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2294         if test "$HAVE_M17N_FLT" = "yes"; then
2295           AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2296         fi
2297       fi
2298     fi
2299 else
2300     HAVE_XFT=no
2301     HAVE_FREETYPE=no
2302     HAVE_LIBOTF=no
2303     HAVE_M17N_FLT=no
2304 fi
2305
2306 ### End of font-backend (under X11) section.
2307
2308 AC_SUBST(FREETYPE_CFLAGS)
2309 AC_SUBST(FREETYPE_LIBS)
2310 AC_SUBST(FONTCONFIG_CFLAGS)
2311 AC_SUBST(FONTCONFIG_LIBS)
2312 AC_SUBST(LIBOTF_CFLAGS)
2313 AC_SUBST(LIBOTF_LIBS)
2314 AC_SUBST(M17N_FLT_CFLAGS)
2315 AC_SUBST(M17N_FLT_LIBS)
2316
2317 ### Use -lXpm if available, unless `--with-xpm=no'.
2318 HAVE_XPM=no
2319 LIBXPM=
2320 if test "${HAVE_X11}" = "yes"; then
2321   if test "${with_xpm}" != "no"; then
2322     AC_CHECK_HEADER(X11/xpm.h,
2323       [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2324     if test "${HAVE_XPM}" = "yes"; then
2325       AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2326       AC_EGREP_CPP(no_return_alloc_pixels,
2327       [#include "X11/xpm.h"
2328 #ifndef XpmReturnAllocPixels
2329 no_return_alloc_pixels
2330 #endif
2331       ], HAVE_XPM=no, HAVE_XPM=yes)
2332
2333       if test "${HAVE_XPM}" = "yes"; then
2334         AC_MSG_RESULT(yes)
2335       else
2336         AC_MSG_RESULT(no)
2337       fi
2338     fi
2339   fi
2340
2341   if test "${HAVE_XPM}" = "yes"; then
2342     AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm libary (-lXpm).])
2343     LIBXPM=-lXpm
2344   fi
2345 fi
2346 AC_SUBST(LIBXPM)
2347
2348 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2349 HAVE_JPEG=no
2350 LIBJPEG=
2351 if test "${HAVE_X11}" = "yes"; then
2352   if test "${with_jpeg}" != "no"; then
2353     dnl Checking for jpeglib.h can lose because of a redefinition of
2354     dnl  HAVE_STDLIB_H.
2355     AC_CHECK_HEADER(jerror.h,
2356       [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2357   fi
2358
2359   AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2360   if test "${HAVE_JPEG}" = "yes"; then
2361     AC_DEFINE(HAVE_JPEG)
2362     AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2363         [#include <jpeglib.h>
2364          version=JPEG_LIB_VERSION
2365 ],
2366         [AC_DEFINE(HAVE_JPEG)],
2367         [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2368         HAVE_JPEG=no])
2369   fi
2370   if test "${HAVE_JPEG}" = "yes"; then
2371     LIBJPEG=-ljpeg
2372   fi
2373 fi
2374 AC_SUBST(LIBJPEG)
2375
2376 ### Use -lpng if available, unless `--with-png=no'.
2377 HAVE_PNG=no
2378 LIBPNG=
2379 if test "${HAVE_X11}" = "yes"; then
2380   if test "${with_png}" != "no"; then
2381     # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2382     # in /usr/include/libpng.
2383     AC_CHECK_HEADERS(png.h libpng/png.h)
2384     if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2385       AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2386     fi
2387   fi
2388
2389   if test "${HAVE_PNG}" = "yes"; then
2390     AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2391     LIBPNG="-lpng -lz -lm"
2392   fi
2393 fi
2394 AC_SUBST(LIBPNG)
2395
2396 ### Use -ltiff if available, unless `--with-tiff=no'.
2397 HAVE_TIFF=no
2398 LIBTIFF=
2399 if test "${HAVE_X11}" = "yes"; then
2400   if test "${with_tiff}" != "no"; then
2401     AC_CHECK_HEADER(tiffio.h,
2402       [tifflibs="-lz -lm"
2403       # At least one tiff package requires the jpeg library.
2404       if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2405       AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2406   fi
2407
2408   if test "${HAVE_TIFF}" = "yes"; then
2409     AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2410     dnl FIXME -lz -lm, as per libpng?
2411     LIBTIFF=-ltiff
2412   fi
2413 fi
2414 AC_SUBST(LIBTIFF)
2415
2416 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2417 HAVE_GIF=no
2418 LIBGIF=
2419 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2420   AC_CHECK_HEADER(gif_lib.h,
2421 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2422 # Earlier versions can crash Emacs.
2423     [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2424
2425   if test "$HAVE_GIF" = yes; then
2426     LIBGIF=-lgif
2427   elif test "$HAVE_GIF" = maybe; then
2428 # If gif_lib.h but no libgif, try libungif.
2429     AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2430     test "$HAVE_GIF" = yes && LIBGIF=-lungif
2431   fi
2432
2433   if test "${HAVE_GIF}" = "yes"; then
2434     AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2435   fi
2436 fi
2437 AC_SUBST(LIBGIF)
2438
2439 dnl Check for required libraries.
2440 if test "${HAVE_X11}" = "yes"; then
2441   MISSING=""
2442   WITH_NO=""
2443   test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2444     MISSING="libXpm" && WITH_NO="--with-xpm=no"
2445   test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2446     MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2447   test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2448     MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2449   test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2450     MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2451   test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2452     MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2453
2454   if test "X${MISSING}" != X; then
2455     AC_MSG_ERROR([The following required libraries were not found:
2456     $MISSING
2457 Maybe some development libraries/packages are missing?
2458 If you don't want to link with them give
2459     $WITH_NO
2460 as options to configure])
2461   fi
2462 fi
2463
2464 ### Use -lgpm if available, unless `--with-gpm=no'.
2465 HAVE_GPM=no
2466 LIBGPM=
2467 MOUSE_SUPPORT=
2468 if test "${with_gpm}" != "no"; then
2469   AC_CHECK_HEADER(gpm.h,
2470     [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2471
2472   if test "${HAVE_GPM}" = "yes"; then
2473     AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2474     LIBGPM=-lgpm
2475     ## May be reset below.
2476     MOUSE_SUPPORT="\$(GPM_MOUSE_SUPPORT)"
2477   fi
2478 fi
2479 AC_SUBST(LIBGPM)
2480
2481 dnl Check for malloc/malloc.h on darwin
2482 AC_CHECK_HEADER(malloc/malloc.h, [AC_DEFINE(HAVE_MALLOC_MALLOC_H, 1, [Define to 1 if you have the <malloc/malloc.h> header file.])])
2483
2484 C_SWITCH_X_SYSTEM=
2485 ### Use NeXTstep API to implement GUI.
2486 if test "${HAVE_NS}" = "yes"; then
2487   AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2488   if test "${NS_IMPL_COCOA}" = "yes"; then
2489     AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2490     GNU_OBJC_CFLAGS=
2491   fi
2492   if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2493     AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2494     # See also .m.o rule in Makefile.in */
2495     # FIXME: are all these flags really needed?  Document here why.  */
2496     C_SWITCH_X_SYSTEM="-D_REENTRANT -fPIC -fno-strict-aliasing"
2497     GNU_OBJC_CFLAGS="-fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
2498   fi
2499   if test "${NS_HAVE_NSINTEGER}" = "yes"; then
2500     AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
2501   fi
2502   # We also have mouse menus.
2503   HAVE_MENUS=yes
2504   OTHER_FILES=ns-app
2505 fi
2506
2507
2508 ### Use session management (-lSM -lICE) if available
2509 HAVE_X_SM=no
2510 LIBXSM=
2511 if test "${HAVE_X11}" = "yes"; then
2512   AC_CHECK_HEADER(X11/SM/SMlib.h,
2513     [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2514
2515   if test "${HAVE_X_SM}" = "yes"; then
2516     AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2517     LIBXSM="-lSM -lICE"
2518     case "$LIBS" in
2519       *-lSM*) ;;
2520       *)      LIBS="$LIBXSM $LIBS" ;;
2521     esac
2522   fi
2523 fi
2524 AC_SUBST(LIBXSM)
2525
2526 ### Use libxml (-lxml2) if available
2527 if test "${with_xml2}" != "no"; then
2528   ### I'm not sure what the version number should be, so I just guessed.
2529   PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2530   if test "${HAVE_LIBXML2}" = "yes"; then
2531     LIBS="$LIBXML2_LIBS $LIBS"
2532     AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2533     if test "${HAVE_LIBXML2}" = "yes"; then
2534       AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2535     else
2536       LIBXML2_LIBS=""
2537       LIBXML2_CFLAGS=""
2538     fi
2539   fi
2540 fi
2541 AC_SUBST(LIBXML2_LIBS)
2542 AC_SUBST(LIBXML2_CFLAGS)
2543
2544 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2545 AC_CACHE_CHECK(whether netdb declares h_errno,
2546                emacs_cv_netdb_declares_h_errno,
2547 [AC_TRY_LINK([#include <netdb.h>],
2548   [return h_errno;],
2549   emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2550 if test $emacs_cv_netdb_declares_h_errno = yes; then
2551   AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2552 fi
2553
2554 AC_FUNC_ALLOCA
2555
2556 dnl src/alloca.c has been removed.  Could also check if $ALLOCA is set?
2557 dnl FIXME is there an autoconf test that does the right thing, without
2558 dnl needing to call A_M_E afterwards?
2559 if test x"$ac_cv_func_alloca_works" != xyes; then
2560    AC_MSG_ERROR( [a system implementation of alloca is required] )
2561 fi
2562
2563 # fmod, logb, and frexp are found in -lm on most systems.
2564 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
2565 AC_CHECK_LIB(m, sqrt)
2566
2567 # Check for mail-locking functions in a "mail" library.  Probably this should
2568 # have the same check as for liblockfile below.
2569 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2570 if test $have_mail = yes; then
2571   LIBS_MAIL=-lmail
2572   LIBS="$LIBS_MAIL $LIBS"
2573   AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2574 else
2575   LIBS_MAIL=
2576 fi
2577 dnl Debian, at least:
2578 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2579 if test $have_lockfile = yes; then
2580    LIBS_MAIL=-llockfile
2581    LIBS="$LIBS_MAIL $LIBS"
2582    AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2583 else
2584 # If we have the shared liblockfile, assume we must use it for mail
2585 # locking (e.g. Debian).  If we couldn't link against liblockfile
2586 # (no liblockfile.a installed), ensure that we don't need to.
2587   dnl This works for files generally, not just executables.
2588   dnl Should we look elsewhere for it?  Maybe examine /etc/ld.so.conf?
2589   AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2590                 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2591   if test $ac_cv_prog_liblockfile = yes; then
2592     AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2593 This probably means that movemail could lose mail.
2594 There may be a `development' package to install containing liblockfile.])
2595   fi
2596 fi
2597 AC_CHECK_FUNCS(touchlock)
2598 AC_CHECK_HEADERS(maillock.h)
2599 AC_SUBST(LIBS_MAIL)
2600
2601 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2602 ## interlock access to the mail spool.  The alternative is a lock file named
2603 ## /usr/spool/mail/$USER.lock.
2604 mail_lock=no
2605 case "$opsys" in
2606   aix4-2) mail_lock="lockf" ;;
2607
2608   gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2609
2610   ## On GNU/Linux systems, both methods are used by various mail programs.
2611   ## I assume most people are using newer mailers that have heard of flock.
2612   ## Change this if you need to.
2613   ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2614   ## configure gets the right answers, and that means *NOT* using flock.
2615   ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2616   ## for details.'' and then uses `#ifdef DEBIAN'.  Unfortunately the
2617   ## Debian maintainer hasn't provided a clean fix for Emacs.
2618   ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2619   ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2620   ## correct logic.  -- fx
2621   ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2622   ## liblockfile is a Free Software replacement for libmail, used on
2623   ## Debian systems and elsewhere. -rfr.
2624   gnu-*)
2625     mail_lock="flock"
2626     if test $have_mail = yes || test $have_lockfile = yes; then
2627       test $ac_cv_header_maillock_h = yes && mail_lock=no
2628     fi
2629     ;;
2630 esac
2631
2632 BLESSMAIL_TARGET=
2633 case "$mail_lock" in
2634   flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2635
2636   lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2637
2638   *) BLESSMAIL_TARGET="need-blessmail" ;;
2639 esac
2640 AC_SUBST(BLESSMAIL_TARGET)
2641
2642
2643 AC_CHECK_FUNCS(gethostname getdomainname dup2 \
2644 rename closedir mkdir rmdir sysinfo getrusage get_current_dir_name \
2645 random lrand48 logb frexp fmod rint cbrt ftime setsid \
2646 strerror fpathconf select euidaccess getpagesize tzset setlocale \
2647 utimes getrlimit setrlimit setpgid getcwd getwd shutdown getaddrinfo \
2648 __fpending mblen mbrlen mbsinit strsignal setitimer ualarm strchr strrchr \
2649 sendto recvfrom getsockopt setsockopt getsockname getpeername \
2650 gai_strerror mkstemp getline getdelim mremap memmove fsync sync \
2651 memset memcmp difftime memcpy mempcpy mblen mbrlen posix_memalign \
2652 cfmakeraw cfsetspeed isnan copysign __executable_start)
2653
2654 dnl Cannot use AC_CHECK_FUNCS
2655 AC_CACHE_CHECK([for __builtin_unwind_init],
2656                emacs_cv_func___builtin_unwind_init,
2657 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2658                 emacs_cv_func___builtin_unwind_init=yes,
2659                 emacs_cv_func___builtin_unwind_init=no)])
2660 if test $emacs_cv_func___builtin_unwind_init = yes; then
2661   AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2662             [Define to 1 if you have the `__builtin_unwind_init' function.])
2663 fi
2664
2665 AC_CHECK_HEADERS(sys/un.h)
2666
2667 AC_FUNC_GETLOADAVG
2668
2669 AC_FUNC_FSEEKO
2670
2671 AC_FUNC_GETPGRP
2672
2673 # Configure gnulib.
2674 gl_ASSERT_NO_GNULIB_POSIXCHECK
2675 gl_ASSERT_NO_GNULIB_TESTS
2676 gl_INIT
2677
2678 # UNIX98 PTYs.
2679 AC_CHECK_FUNCS(grantpt)
2680
2681 # PTY-related GNU extensions.
2682 AC_CHECK_FUNCS(getpt)
2683
2684 # Check this now, so that we will NOT find the above functions in ncurses.
2685 # That is because we have not set up to link ncurses in lib-src.
2686 # It's better to believe a function is not available
2687 # than to expect to find it in ncurses.
2688 # Also we need tputs and friends to be able to build at all.
2689 have_tputs_et_al=true
2690 AC_SEARCH_LIBS(tputs, [ncurses terminfo termcap], , have_tputs_et_al=false)
2691 if test "$have_tputs_et_al" != true; then
2692   AC_MSG_ERROR([I couldn't find termcap functions (tputs and friends).
2693 Maybe some development libraries/packages are missing?  Try installing
2694 libncurses-dev(el), libterminfo-dev(el) or similar.])
2695 fi
2696 # Must define this when any termcap library is found.
2697 AC_DEFINE(HAVE_LIBNCURSES, 1,
2698           [Define to 1 if you have the `ncurses' library (-lncurses).])
2699 ## FIXME This was the cpp logic, but I am not sure it is right.
2700 ## The above test has not necessarily found libncurses.
2701 HAVE_LIBNCURSES=yes
2702
2703 ## Use terminfo instead of termcap?
2704 ## Note only system files NOT using terminfo are:
2705 ## freebsd < 40000, ms-w32, msdos, netbsd < 599002500, and
2706 ## darwin|gnu without ncurses.
2707 TERMINFO=no
2708 LIBS_TERMCAP=
2709 case "$opsys" in
2710   ## cygwin: Fewer environment variables to go wrong, more terminal types.
2711   ## hpux10-20: Use the system provided termcap(3) library.
2712   ## openbsd: David Mazieres <dm@reeducation-labor.lcs.mit.edu> says this
2713   ##  is necessary.  Otherwise Emacs dumps core when run -nw.
2714   aix4-2|cygwin|hpux*|irix6-5|openbsd|sol2*|unixware) TERMINFO=yes ;;
2715
2716   ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2717   ##  The ncurses library has been moved out of the System framework in
2718   ##  Mac OS X 10.2.  So if configure detects it, set the command-line
2719   ##  option to use it.
2720   darwin|gnu*)
2721     ## (HAVE_LIBNCURSES was not always true, but is since 2010-03-18.)
2722     if test "x$HAVE_LIBNCURSES" = "xyes"; then
2723       TERMINFO=yes
2724       LIBS_TERMCAP="-lncurses"
2725     fi
2726     ;;
2727
2728   freebsd)
2729     AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2730     AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2731     [AC_TRY_LINK([#include <osreldate.h>],
2732 [#if __FreeBSD_version < 400000
2733 fail;
2734 #endif
2735 ], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2736
2737     AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2738
2739     if test $emacs_cv_freebsd_terminfo = yes; then
2740       TERMINFO=yes
2741       LIBS_TERMCAP="-lncurses"
2742     else
2743       LIBS_TERMCAP="-ltermcap"
2744     fi
2745     ;;
2746
2747   netbsd)
2748     if test $ac_cv_search_tputs = -lterminfo; then
2749       TERMINFO=yes
2750       LIBS_TERMCAP="-lterminfo"
2751     else
2752       LIBS_TERMCAP="-ltermcap"
2753     fi
2754     ;;
2755
2756 esac
2757
2758 case "$opsys" in
2759   ## hpux: Make sure we get select from libc rather than from libcurses
2760   ##  because libcurses on HPUX 10.10 has a broken version of select.
2761   ##  We used to use -lc -lcurses, but this may be cleaner.
2762   hpux*) LIBS_TERMCAP="-ltermcap" ;;
2763
2764   openbsd) LIBS_TERMCAP="-lncurses" ;;
2765
2766   ## Must use system termcap, if we use any termcap.  It does special things.
2767   sol2*) test "$TERMINFO" != yes && LIBS_TERMCAP="-ltermcap" ;;
2768 esac
2769
2770 TERMCAP_OBJ=tparam.o
2771 if test $TERMINFO = yes; then
2772   AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
2773
2774   ## Default used to be -ltermcap.  Add a case above if need something else.
2775   test "x$LIBS_TERMCAP" = "x" && LIBS_TERMCAP="-lcurses"
2776
2777   TERMCAP_OBJ=terminfo.o
2778 fi
2779 AC_SUBST(LIBS_TERMCAP)
2780 AC_SUBST(TERMCAP_OBJ)
2781
2782
2783 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2784 resolv=no
2785 AC_TRY_LINK([#include <netinet/in.h>
2786 #include <arpa/nameser.h>
2787 #include <resolv.h>],
2788     [return res_init();],
2789     have_res_init=yes, have_res_init=no)
2790 if test "$have_res_init" = no; then
2791   OLIBS="$LIBS"
2792   LIBS="$LIBS -lresolv"
2793   AC_MSG_CHECKING(for res_init with -lresolv)
2794   AC_TRY_LINK([#include <netinet/in.h>
2795 #include <arpa/nameser.h>
2796 #include <resolv.h>],
2797     [return res_init();],
2798     have_res_init=yes, have_res_init=no)
2799   AC_MSG_RESULT($have_res_init)
2800   if test "$have_res_init" = yes ; then
2801     resolv=yes
2802   fi
2803   LIBS="$OLIBS"
2804 fi
2805
2806 if test "$have_res_init" = yes; then
2807   AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2808 fi
2809
2810 # Do we need the Hesiod library to provide the support routines?
2811 LIBHESIOD=
2812 if test "$with_hesiod" != no ; then
2813   # Don't set $LIBS here -- see comments above.  FIXME which comments?
2814   AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2815      [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2816                   [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2817   if test "$resolv" = yes ; then
2818     RESOLVLIB=-lresolv
2819   else
2820     RESOLVLIB=
2821   fi
2822   AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2823         hesiod=yes, :, $RESOLVLIB)])
2824
2825   if test x"$hesiod" = xyes; then
2826     AC_DEFINE(HAVE_LIBHESIOD, 1,
2827               [Define to 1 if you have the hesiod library (-lhesiod).])
2828     LIBHESIOD=-lhesiod
2829   fi
2830 fi
2831 AC_SUBST(LIBHESIOD)
2832
2833 # Do we need libresolv (due to res_init or Hesiod)?
2834 if test "$resolv" = yes ; then
2835   AC_DEFINE(HAVE_LIBRESOLV, 1,
2836             [Define to 1 if you have the resolv library (-lresolv).])
2837   LIBRESOLV=-lresolv
2838 else
2839   LIBRESOLV=
2840 fi
2841 AC_SUBST(LIBRESOLV)
2842
2843 # These tell us which Kerberos-related libraries to use.
2844 COM_ERRLIB=
2845 CRYPTOLIB=
2846 KRB5LIB=
2847 DESLIB=
2848 KRB4LIB=
2849
2850 if test "${with_kerberos}" != no; then
2851   AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
2852   if test $have_com_err = yes; then
2853     COM_ERRLIB=-lcom_err
2854     LIBS="$COM_ERRLIB $LIBS"
2855     AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
2856   fi
2857   AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
2858   if test $have_crypto = yes; then
2859     CRYPTOLIB=-lcrypto
2860     LIBS="$CRYPTOLIB $LIBS"
2861     AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
2862   fi
2863   AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
2864   if test $have_k5crypto = yes; then
2865     CRYPTOLIB=-lk5crypto
2866     LIBS="$CRYPTOLIB $LIBS"
2867     AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
2868   fi
2869   AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
2870   if test $have_krb5=yes; then
2871     KRB5LIB=-lkrb5
2872     LIBS="$KRB5LIB $LIBS"
2873     AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
2874   fi
2875   dnl FIXME Simplify.  Does not match 22 logic, thanks to default_off?
2876   if test "${with_kerberos5}" = no; then
2877     AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
2878     if test $have_des425 = yes; then
2879       DESLIB=-ldes425
2880       LIBS="$DESLIB $LIBS"
2881       AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
2882     else
2883       AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
2884       if test $have_des = yes; then
2885         DESLIB=-ldes
2886         LIBS="$DESLIB $LIBS"
2887         AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
2888       fi
2889     fi
2890     AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
2891     if test $have_krb4 = yes; then
2892       KRB4LIB=-lkrb4
2893       LIBS="$KRB4LIB $LIBS"
2894       AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
2895     else
2896       AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
2897       if test $have_krb = yes; then
2898         KRB4LIB=-lkrb
2899         LIBS="$KRB4LIB $LIBS"
2900         AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
2901       fi
2902     fi
2903   fi
2904
2905   if test "${with_kerberos5}" != no; then
2906     AC_CHECK_HEADERS(krb5.h,
2907       [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
2908                         [#include <krb5.h>])])
2909   else
2910     AC_CHECK_HEADERS(des.h,,
2911                      [AC_CHECK_HEADERS(kerberosIV/des.h,,
2912                                        [AC_CHECK_HEADERS(kerberos/des.h)])])
2913     AC_CHECK_HEADERS(krb.h,,
2914                      [AC_CHECK_HEADERS(kerberosIV/krb.h,,
2915                                        [AC_CHECK_HEADERS(kerberos/krb.h)])])
2916   fi
2917   AC_CHECK_HEADERS(com_err.h)
2918 fi
2919
2920 AC_SUBST(COM_ERRLIB)
2921 AC_SUBST(CRYPTOLIB)
2922 AC_SUBST(KRB5LIB)
2923 AC_SUBST(DESLIB)
2924 AC_SUBST(KRB4LIB)
2925
2926 # Solaris requires -lintl if you want strerror (which calls dgettext)
2927 # to return localized messages.
2928 AC_CHECK_LIB(intl, dgettext)
2929
2930 AC_MSG_CHECKING(whether localtime caches TZ)
2931 AC_CACHE_VAL(emacs_cv_localtime_cache,
2932 [if test x$ac_cv_func_tzset = xyes; then
2933 AC_TRY_RUN([#include <time.h>
2934 char TZ_GMT0[] = "TZ=GMT0";
2935 char TZ_PST8[] = "TZ=PST8";
2936 main()
2937 {
2938   time_t now = time ((time_t *) 0);
2939   int hour_GMT0, hour_unset;
2940   if (putenv (TZ_GMT0) != 0)
2941     exit (1);
2942   hour_GMT0 = localtime (&now)->tm_hour;
2943   unsetenv("TZ");
2944   hour_unset = localtime (&now)->tm_hour;
2945   if (putenv (TZ_PST8) != 0)
2946     exit (1);
2947   if (localtime (&now)->tm_hour == hour_GMT0)
2948     exit (1);
2949   unsetenv("TZ");
2950   if (localtime (&now)->tm_hour != hour_unset)
2951     exit (1);
2952   exit (0);
2953 }], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
2954 [# If we have tzset, assume the worst when cross-compiling.
2955 emacs_cv_localtime_cache=yes])
2956 else
2957         # If we lack tzset, report that localtime does not cache TZ,
2958         # since we can't invalidate the cache if we don't have tzset.
2959         emacs_cv_localtime_cache=no
2960 fi])dnl
2961 AC_MSG_RESULT($emacs_cv_localtime_cache)
2962 if test $emacs_cv_localtime_cache = yes; then
2963   AC_DEFINE(LOCALTIME_CACHE, 1,
2964             [Define to 1 if localtime caches TZ.])
2965 fi
2966
2967 if test "x$HAVE_TIMEVAL" = xyes; then
2968   AC_CHECK_FUNCS(gettimeofday)
2969   if test $ac_cv_func_gettimeofday = yes; then
2970     AC_CACHE_CHECK(whether gettimeofday can accept two arguments,
2971                    emacs_cv_gettimeofday_two_arguments,
2972     [AC_TRY_COMPILE([
2973 #ifdef TIME_WITH_SYS_TIME
2974 #include <sys/time.h>
2975 #include <time.h>
2976 #else
2977 #ifdef HAVE_SYS_TIME_H
2978 #include <sys/time.h>
2979 #else
2980 #include <time.h>
2981 #endif
2982 #endif],
2983       [struct timeval time;
2984        gettimeofday (&time, 0);],
2985       emacs_cv_gettimeofday_two_arguments=yes,
2986       emacs_cv_gettimeofday_two_arguments=no)])
2987     if test $emacs_cv_gettimeofday_two_arguments = no; then
2988       AC_DEFINE(GETTIMEOFDAY_ONE_ARGUMENT, 1,
2989                 [Define to 1 if gettimeofday accepts only one argument.])
2990     fi
2991   fi
2992 fi
2993
2994 ok_so_far=yes
2995 AC_CHECK_FUNC(socket, , ok_so_far=no)
2996 if test $ok_so_far = yes; then
2997   AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
2998 fi
2999 if test $ok_so_far = yes; then
3000   AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3001 fi
3002 if test $ok_so_far = yes; then
3003 dnl Fixme: Not used.  Should this be HAVE_SOCKETS?
3004   AC_DEFINE(HAVE_INET_SOCKETS, 1,
3005             [Define to 1 if you have inet sockets.])
3006 fi
3007
3008 if test -f /usr/lpp/X11/bin/smt.exp; then
3009   AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3010             [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3011 fi
3012
3013 AC_MSG_CHECKING(whether system supports dynamic ptys)
3014 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3015   AC_MSG_RESULT(yes)
3016   AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3017 else
3018   AC_MSG_RESULT(no)
3019 fi
3020
3021 AC_FUNC_FORK
3022
3023 dnl Adapted from Haible's version.
3024 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3025   [AC_TRY_LINK([#include <langinfo.h>],
3026     [char* cs = nl_langinfo(CODESET);],
3027     emacs_cv_langinfo_codeset=yes,
3028     emacs_cv_langinfo_codeset=no)
3029   ])
3030 if test $emacs_cv_langinfo_codeset = yes; then
3031   AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3032     [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3033 fi
3034
3035 AC_CHECK_TYPES(size_t)
3036
3037 AC_TYPE_MBSTATE_T
3038
3039 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3040   [AC_TRY_COMPILE([void fred (int x[__restrict]);], [],
3041                   emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3042 if test "$emacs_cv_c_restrict_arr" = yes; then
3043   AC_DEFINE(__restrict_arr, __restrict,
3044     [Define to compiler's equivalent of C99 restrict keyword in array
3045      declarations.  Define as empty for no equivalent.])
3046 fi
3047
3048 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3049 dnl how the tty code is related to POSIX and/or other versions of termios.
3050 dnl The following looks like a useful start.
3051 dnl
3052 dnl AC_SYS_POSIX_TERMIOS
3053 dnl if test $ac_cv_sys_posix_termios = yes; then
3054 dnl    AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3055 dnl                                and macros for terminal control.])
3056 dnl    AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3057 dnl fi
3058
3059 dnl Fixme: Use AC_FUNC_MEMCMP since memcmp is used.  (Needs libobj replacement.)
3060
3061 # Set up the CFLAGS for real compilation, so we can substitute it.
3062 CFLAGS="$REAL_CFLAGS"
3063 CPPFLAGS="$REAL_CPPFLAGS"
3064
3065 ## Hack to detect a buggy GCC version.
3066 if test "x$GCC" = xyes \
3067    && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3068    && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3069    && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3070    AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3071 fi
3072
3073 version=$PACKAGE_VERSION
3074
3075 ### Specify what sort of things we'll be editing into Makefile and config.h.
3076 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3077 AC_SUBST(version)
3078 AC_SUBST(configuration)
3079 ## Unused?
3080 AC_SUBST(canonical)
3081 AC_SUBST(srcdir)
3082 AC_SUBST(prefix)
3083 AC_SUBST(exec_prefix)
3084 AC_SUBST(bindir)
3085 AC_SUBST(datadir)
3086 AC_SUBST(sharedstatedir)
3087 AC_SUBST(libexecdir)
3088 AC_SUBST(mandir)
3089 AC_SUBST(infodir)
3090 AC_SUBST(lispdir)
3091 AC_SUBST(locallisppath)
3092 AC_SUBST(lisppath)
3093 AC_SUBST(x_default_search_path)
3094 AC_SUBST(etcdir)
3095 AC_SUBST(archlibdir)
3096 AC_SUBST(docdir)
3097 AC_SUBST(bitmapdir)
3098 AC_SUBST(gamedir)
3099 AC_SUBST(gameuser)
3100 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
3101 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
3102 ## end of LIBX_BASE, but nothing ever set it.
3103 AC_SUBST(LD_SWITCH_X_SITE)
3104 AC_SUBST(C_SWITCH_X_SITE)
3105 AC_SUBST(C_SWITCH_X_SYSTEM)
3106 AC_SUBST(CFLAGS)
3107 ## Used in lwlib/Makefile.in.
3108 AC_SUBST(X_TOOLKIT_TYPE)
3109 if test -n "${machfile}"; then
3110   M_FILE="\$(srcdir)/${machfile}"
3111 else
3112   M_FILE=
3113 fi
3114 S_FILE="\$(srcdir)/${opsysfile}"
3115 AC_SUBST(M_FILE)
3116 AC_SUBST(S_FILE)
3117 AC_SUBST(GETLOADAVG_LIBS)
3118 AC_SUBST(ns_appdir)
3119 AC_SUBST(ns_appbindir)
3120 AC_SUBST(ns_appresdir)
3121 AC_SUBST(ns_appsrc)
3122 AC_SUBST(GNU_OBJC_CFLAGS)
3123 AC_SUBST(OTHER_FILES)
3124
3125 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION,  "${canonical}",
3126                    [Define to the canonical Emacs configuration name.])
3127 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
3128                    [Define to the options passed to configure.])
3129 if test -n "$machfile"; then
3130   AC_DEFINE_UNQUOTED(config_machfile,  "${machfile}",
3131                      [Define to the used machine dependent file.])
3132 fi
3133 AC_DEFINE_UNQUOTED(config_opsysfile, "${opsysfile}",
3134                    [Define to the used os dependent file.])
3135
3136 XMENU_OBJ=
3137 XOBJ=
3138 FONT_OBJ=
3139 if test "${HAVE_X_WINDOWS}" = "yes" ; then
3140   AC_DEFINE(HAVE_X_WINDOWS, 1,
3141             [Define to 1 if you want to use the X window system.])
3142   XMENU_OBJ=xmenu.o
3143   XOBJ="xterm.o xfns.o xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o xsettings.o xgselect.o"
3144   FONT_OBJ=xfont.o
3145   if test "$HAVE_XFT" = "yes"; then
3146     FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
3147   elif test "$HAVE_FREETYPE" = "yes"; then
3148     FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
3149   fi
3150   AC_SUBST(FONT_OBJ)
3151 fi
3152 AC_SUBST(XMENU_OBJ)
3153 AC_SUBST(XOBJ)
3154 AC_SUBST(FONT_OBJ)
3155
3156 WIDGET_OBJ=
3157 MOTIF_LIBW=
3158 if test "${USE_X_TOOLKIT}" != "none" ; then
3159   WIDGET_OBJ=widget.o
3160   AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
3161   if test "${USE_X_TOOLKIT}" = "LUCID"; then
3162     AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
3163   elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
3164     AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
3165     MOTIF_LIBW=-lXm
3166     case "$opsys" in
3167       gnu-linux)
3168         ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
3169         MOTIF_LIBW="$MOTIF_LIBW -lXpm"
3170         ;;
3171
3172       unixware)
3173         ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
3174         ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
3175         MOTIF_LIBW="MOTIF_LIBW -lXimp"
3176         ;;
3177
3178       aix4-2)
3179         ## olson@mcs.anl.gov says -li18n is needed by -lXm.
3180         MOTIF_LIBW="$MOTIF_LIBW -li18n"
3181         ;;
3182     esac
3183     MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
3184   fi
3185 fi
3186 AC_SUBST(WIDGET_OBJ)
3187
3188 TOOLKIT_LIBW=
3189 case "$USE_X_TOOLKIT" in
3190   MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
3191   LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
3192   none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
3193 esac
3194 AC_SUBST(TOOLKIT_LIBW)
3195
3196 if test "$USE_X_TOOLKIT" = "none"; then
3197   LIBXT_OTHER="\$(LIBXSM)"
3198   OLDXMENU_TARGET="really-oldXMenu"
3199 else
3200   LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
3201   OLDXMENU_TARGET="really-lwlib"
3202 fi
3203 AC_SUBST(LIBXT_OTHER)
3204
3205 ## The X Menu stuff is present in the X10 distribution, but missing
3206 ## from X11.  If we have X10, just use the installed library;
3207 ## otherwise, use our own copy.
3208 if test "${HAVE_X11}" = "yes" ; then
3209   AC_DEFINE(HAVE_X11, 1,
3210             [Define to 1 if you want to use version 11 of X windows.
3211              Otherwise, Emacs expects to use version 10.])
3212
3213   if test "$USE_X_TOOLKIT" = "none"; then
3214     OLDXMENU="\${oldXMenudir}/libXMenu11.a"
3215   else
3216     OLDXMENU="\${lwlibdir}/liblw.a"
3217   fi
3218   LIBXMENU="\$(OLDXMENU)"
3219   LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
3220   OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
3221 else
3222   ## For a syntactically valid Makefile; not actually used for anything.
3223   ## See comments in src/Makefile.in.
3224   OLDXMENU=nothing
3225   ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
3226   if test "${HAVE_X_WINDOWS}" = "yes"; then
3227     LIBXMENU="-lXMenu"
3228   else
3229     LIBXMENU=
3230   fi
3231   LIBX_OTHER=
3232   OLDXMENU_DEPS=
3233 fi
3234
3235 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
3236   OLDXMENU_TARGET=
3237   OLDXMENU=nothing
3238   LIBXMENU=
3239   OLDXMENU_DEPS=
3240 fi
3241
3242 AC_SUBST(OLDXMENU_TARGET)
3243 AC_SUBST(OLDXMENU)
3244 AC_SUBST(LIBXMENU)
3245 AC_SUBST(LIBX_OTHER)
3246 AC_SUBST(OLDXMENU_DEPS)
3247
3248 if test "${HAVE_MENUS}" = "yes" ; then
3249   AC_DEFINE(HAVE_MENUS, 1,
3250             [Define to 1 if you have mouse menus.
3251              (This is automatic if you use X, but the option to specify it remains.)
3252              It is also defined with other window systems that support xmenu.c.])
3253 fi
3254
3255 if test "${GNU_MALLOC}" = "yes" ; then
3256   AC_DEFINE(GNU_MALLOC, 1,
3257             [Define to 1 if you want to use the GNU memory allocator.])
3258 fi
3259
3260 RALLOC_OBJ=
3261 if test "${REL_ALLOC}" = "yes" ; then
3262   AC_DEFINE(REL_ALLOC, 1,
3263             [Define REL_ALLOC if you want to use the relocating allocator for
3264              buffer space.])
3265
3266   test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
3267 fi
3268 AC_SUBST(RALLOC_OBJ)
3269
3270 if test "$opsys" = "cygwin"; then
3271   CYGWIN_OBJ="sheap.o"
3272   ## Cygwin differs because of its unexec().
3273   PRE_ALLOC_OBJ=
3274   POST_ALLOC_OBJ=lastfile.o
3275 else
3276   CYGWIN_OBJ=
3277   PRE_ALLOC_OBJ=lastfile.o
3278   POST_ALLOC_OBJ=
3279 fi
3280 AC_SUBST(CYGWIN_OBJ)
3281 AC_SUBST(PRE_ALLOC_OBJ)
3282 AC_SUBST(POST_ALLOC_OBJ)
3283
3284
3285 case "$opsys" in
3286   aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
3287
3288   darwin)
3289    ## The -headerpad option tells ld (see man page) to leave room at the
3290    ## end of the header for adding load commands.  Needed for dumping.
3291    ## 0x690 is the total size of 30 segment load commands (at 56
3292    ## each); under Cocoa 31 commands are required.
3293    if test "$HAVE_NS" = "yes"; then
3294      libs_nsgui="-framework AppKit"
3295      headerpad_extra=6C8
3296    else
3297      libs_nsgui=
3298      headerpad_extra=690
3299    fi
3300    LD_SWITCH_SYSTEM_TEMACS="-prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
3301
3302    ## This is here because src/Makefile.in did some extra fiddling around
3303    ## with LD_SWITCH_SYSTEM.  The cpp logic was:
3304    ##   #ifndef LD_SWITCH_SYSTEM
3305    ##   #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
3306    ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
3307    ## not using gcc, darwin system not on an alpha (ie darwin, since
3308    ## darwin + alpha does not occur).
3309    ## Because this was done in src/Makefile.in, the resulting part of
3310    ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
3311    ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
3312    ## rather than LD_SWITCH_SYSTEM.
3313    test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
3314      LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
3315    ;;
3316
3317   ## LD_SWITCH_X_SITE_AUX is a -R option saying where to find X at run-time.
3318   ## When handled by cpp, this was in LD_SWITCH_SYSTEM.  However, at
3319   ## the point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_AUX
3320   ## had not yet been defined and was expanded to null.  Hence LD_SWITCH_SYSTEM
3321   ## had different values in configure (in ac_link) and src/Makefile.in.
3322   ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
3323   gnu-linux) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_AUX)" ;;
3324
3325   *) LD_SWITCH_SYSTEM_TEMACS= ;;
3326 esac
3327
3328 if test "$NS_IMPL_GNUSTEP" = "yes"; then
3329   LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
3330 fi
3331
3332 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
3333
3334
3335 LD_FIRSTFLAG=
3336 ORDINARY_LINK=
3337 case "$opsys" in
3338   ## gnu: GNU needs its own crt0.
3339   aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
3340
3341   ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
3342   ## library search parth, i.e. it won't search /usr/lib for libc and
3343   ## friends.  Using -nostartfiles instead avoids this problem, and
3344   ## will also work on earlier NetBSD releases.
3345   netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
3346
3347   ## macpcc: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
3348   ##   MkLinux/LinuxPPC needs this.
3349   ## ibms390x only supports opsys = gnu-linux so it can be added here.
3350   gnu-*)
3351     case "$machine" in
3352       macppc|ibms390x) LD_FIRSTFLAG="-nostdlib" ;;
3353     esac
3354     ;;
3355 esac
3356
3357
3358 if test "x$ORDINARY_LINK" = "xyes"; then
3359
3360   LD_FIRSTFLAG=""
3361   AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
3362
3363 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
3364 ## freebsd, gnu-* not on macppc|ibms390x.
3365 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
3366
3367   ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
3368   ## places that are difficult to figure out at make time.  Fortunately,
3369   ## these same versions allow you to pass arbitrary flags on to the
3370   ## linker, so there is no reason not to use it as a linker.
3371   ##
3372   ## Well, it is not quite perfect.  The "-nostdlib" keeps GCC from
3373   ## searching for libraries in its internal directories, so we have to
3374   ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
3375   LD_FIRSTFLAG="-nostdlib"
3376 fi
3377
3378 ## FIXME? What setting of EDIT_LDFLAGS should this have?
3379 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
3380
3381 AC_SUBST(LD_FIRSTFLAG)
3382
3383
3384 ## FIXME? The logic here is not precisely the same as that above.
3385 ## There is no check here for a pre-defined LD_FIRSTFLAG.
3386 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
3387 LIB_GCC=
3388 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
3389
3390   case "$opsys" in
3391     freebsd|netbsd|openbsd) LIB_GCC= ;;
3392
3393     gnu-*)
3394       ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
3395       ## build on ARM EABI under GNU/Linux.  (Bug#5518)
3396       case $host_cpu in
3397       arm*)
3398         LIB_GCC="-lgcc_s"
3399         ;;
3400       *)
3401         ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
3402         ## immediately undefine it again and redefine it to empty.
3403         ## Was the C_SWITCH_X_SITE part really necessary?
3404 ##      LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
3405         LIB_GCC=
3406         ;;
3407       esac
3408       ;;
3409
3410     ## Ask GCC where to find libgcc.a.
3411     *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
3412   esac
3413 fi                              dnl if $GCC
3414 AC_SUBST(LIB_GCC)
3415
3416
3417 TOOLTIP_SUPPORT=
3418 WINDOW_SUPPORT=
3419 ## If we're using X11/GNUstep, define some consequences.
3420 if test "$HAVE_X_WINDOWS" = "yes" || test "$HAVE_NS" = "yes"; then
3421   AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
3422   AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
3423   MOUSE_SUPPORT="\$(REAL_MOUSE_SUPPORT)"
3424   TOOLTIP_SUPPORT="\${lispsource}/mouse.elc"
3425
3426   WINDOW_SUPPORT="\$(BASE_WINDOW_SUPPORT)"
3427   test "$HAVE_X_WINDOWS" = "yes" && \
3428     WINDOW_SUPPORT="$WINDOW_SUPPORT \$(X_WINDOW_SUPPORT)"
3429
3430 fi
3431 AC_SUBST(MOUSE_SUPPORT)
3432 AC_SUBST(TOOLTIP_SUPPORT)
3433 AC_SUBST(WINDOW_SUPPORT)
3434
3435
3436 AH_TOP([/* GNU Emacs site configuration template file.
3437
3438 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2011
3439   Free Software Foundation, Inc.
3440
3441 This file is part of GNU Emacs.
3442
3443 GNU Emacs is free software: you can redistribute it and/or modify
3444 it under the terms of the GNU General Public License as published by
3445 the Free Software Foundation, either version 3 of the License, or
3446 (at your option) any later version.
3447
3448 GNU Emacs is distributed in the hope that it will be useful,
3449 but WITHOUT ANY WARRANTY; without even the implied warranty of
3450 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
3451 GNU General Public License for more details.
3452
3453 You should have received a copy of the GNU General Public License
3454 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
3455
3456
3457 /* No code in Emacs #includes config.h twice, but some bits of code
3458    intended to work with other packages as well (like gmalloc.c)
3459    think they can include it as many times as they like.  */
3460 #ifndef EMACS_CONFIG_H
3461 #define EMACS_CONFIG_H
3462 ])dnl
3463
3464 AH_BOTTOM([
3465 /* Define AMPERSAND_FULL_NAME if you use the convention
3466    that & in the full name stands for the login id.  */
3467 /* Turned on June 1996 supposing nobody will mind it.  */
3468 #define AMPERSAND_FULL_NAME
3469
3470 /* If using GNU, then support inline function declarations.  */
3471 /* Don't try to switch on inline handling as detected by AC_C_INLINE
3472    generally, because even if non-gcc compilers accept `inline', they
3473    may reject `extern inline'.  */
3474 #if defined (__GNUC__)
3475 #define INLINE __inline__
3476 #else
3477 #define INLINE
3478 #endif
3479
3480 /* `subprocesses' should be defined if you want to
3481    have code for asynchronous subprocesses
3482    (as used in M-x compile and M-x shell).
3483    Only MSDOS does not support this (it overrides
3484    this in its config_opsysfile below).  */
3485
3486 #define subprocesses
3487
3488 /* Include the os and machine dependent files.  */
3489 #include config_opsysfile
3490 #ifdef config_machfile
3491 # include config_machfile
3492 #endif
3493
3494 /* GNUstep needs a bit more pure memory.  Of the existing knobs,
3495    SYSTEM_PURESIZE_EXTRA seems like the least likely to cause problems.
3496   (There is probably a better place to do this, but right now the
3497    Cocoa side does this in s/darwin.h and we cannot parallel this
3498    exactly since GNUstep is multi-OS.  */
3499 #if defined HAVE_NS && defined NS_IMPL_GNUSTEP
3500 #  define SYSTEM_PURESIZE_EXTRA 30000
3501 #endif
3502
3503 /* SIGTYPE is the macro we actually use.  */
3504 #ifndef SIGTYPE
3505 #define SIGTYPE RETSIGTYPE
3506 #endif
3507
3508 #ifdef emacs /* Don't do this for lib-src.  */
3509 /* Tell regex.c to use a type compatible with Emacs.  */
3510 #define RE_TRANSLATE_TYPE Lisp_Object
3511 #define RE_TRANSLATE(TBL, C) CHAR_TABLE_TRANSLATE (TBL, C)
3512 #ifdef make_number
3513 /* If make_number is a macro, use it.  */
3514 #define RE_TRANSLATE_P(TBL) (!EQ (TBL, make_number (0)))
3515 #else
3516 /* If make_number is a function, avoid it.  */
3517 #define RE_TRANSLATE_P(TBL) (!(INTEGERP (TBL) && XINT (TBL) == 0))
3518 #endif
3519 #endif
3520
3521 /* These default definitions are good for almost all machines.
3522    The exceptions override them in m/MACHINE.h.  */
3523
3524 #ifndef BITS_PER_CHAR
3525 #define BITS_PER_CHAR 8
3526 #endif
3527
3528 #ifndef BITS_PER_SHORT
3529 #define BITS_PER_SHORT 16
3530 #endif
3531
3532 /* Note that lisp.h uses this in a preprocessor conditional, so it
3533    would not work to use sizeof.  That being so, we do all of them
3534    without sizeof, for uniformity's sake.  */
3535 #ifndef BITS_PER_INT
3536 #define BITS_PER_INT 32
3537 #endif
3538
3539 #ifndef BITS_PER_LONG
3540 #ifdef _LP64
3541 #define BITS_PER_LONG 64
3542 #else
3543 #define BITS_PER_LONG 32
3544 #endif
3545 #endif
3546
3547 /* Define if the compiler supports function prototypes.  It may do so but
3548    not define __STDC__ (e.g. DEC C by default) or may define it as zero.  */
3549 #undef PROTOTYPES
3550
3551 #include <string.h>
3552 #include <stdlib.h>
3553
3554 #ifdef HAVE_ALLOCA_H
3555 # include <alloca.h>
3556 #elif defined __GNUC__
3557 # define alloca __builtin_alloca
3558 #elif defined _AIX
3559 # define alloca __alloca
3560 #else
3561 # include <stddef.h>
3562 # ifdef  __cplusplus
3563 extern "C"
3564 # endif
3565 void *alloca (size_t);
3566 #endif
3567
3568 #ifndef HAVE_SIZE_T
3569 typedef unsigned size_t;
3570 #endif
3571
3572 #ifndef HAVE_STRCHR
3573 #define strchr(a, b) index (a, b)
3574 #endif
3575
3576 #ifndef HAVE_STRRCHR
3577 #define strrchr(a, b) rindex (a, b)
3578 #endif
3579
3580 #if defined __GNUC__ && (__GNUC__ > 2 \
3581                          || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5))
3582 #define NO_RETURN       __attribute__ ((__noreturn__))
3583 #else
3584 #define NO_RETURN       /* nothing */
3585 #endif
3586
3587 #if __GNUC__ >= 3  /* On GCC 3.0 we might get a warning.  */
3588 #define NO_INLINE __attribute__((noinline))
3589 #else
3590 #define NO_INLINE
3591 #endif
3592
3593 #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))
3594 #define EXTERNALLY_VISIBLE __attribute__((externally_visible))
3595 #else
3596 #define EXTERNALLY_VISIBLE
3597 #endif
3598
3599 /* Some versions of GNU/Linux define noinline in their headers.  */
3600 #ifdef noinline
3601 #undef noinline
3602 #endif
3603
3604 /* These won't be used automatically yet.  We also need to know, at least,
3605    that the stack is continuous.  */
3606 #ifdef __GNUC__
3607 #  ifndef GC_SETJMP_WORKS
3608   /* GC_SETJMP_WORKS is nearly always appropriate for GCC.  */
3609 #    define GC_SETJMP_WORKS 1
3610 #  endif
3611 #  ifndef GC_LISP_OBJECT_ALIGNMENT
3612 #    define GC_LISP_OBJECT_ALIGNMENT (__alignof__ (Lisp_Object))
3613 #  endif
3614 #endif
3615
3616 #endif /* EMACS_CONFIG_H */
3617
3618 /*
3619 Local Variables:
3620 mode: c
3621 End:
3622 */
3623 ])dnl
3624
3625 #### Report on what we decided to do.
3626 #### Report GTK as a toolkit, even if it doesn't use Xt.
3627 #### It makes printing result more understandable as using GTK sets
3628 #### toolkit_scroll_bars to yes by default.
3629 if test "${HAVE_GTK}" = "yes"; then
3630   USE_X_TOOLKIT=GTK
3631 fi
3632
3633 and_machfile=
3634 if test -n "$machfile"; then
3635   and_machfile=" and \`${machfile}'"
3636 fi
3637
3638 echo "
3639 Configured for \`${canonical}'.
3640
3641   Where should the build process find the source code?    ${srcdir}
3642   What operating system and machine description files should Emacs use?
3643         \`${opsysfile}'${and_machfile}
3644   What compiler should emacs be built with?               ${CC} ${CFLAGS}
3645   Should Emacs use the GNU version of malloc?             ${GNU_MALLOC}${GNU_MALLOC_reason}
3646   Should Emacs use a relocating allocator for buffers?    ${REL_ALLOC}
3647   Should Emacs use mmap(2) for buffer allocation?         $use_mmap_for_buffers
3648   What window system should Emacs use?                    ${window_system}
3649   What toolkit should Emacs use?                          ${USE_X_TOOLKIT}"
3650
3651 if test -n "${x_includes}"; then
3652 echo "  Where do we find X Windows header files?                ${x_includes}"
3653 else
3654 echo "  Where do we find X Windows header files?                Standard dirs"
3655 fi
3656 if test -n "${x_libraries}"; then
3657 echo "  Where do we find X Windows libraries?                   ${x_libraries}"
3658 else
3659 echo "  Where do we find X Windows libraries?                   Standard dirs"
3660 fi
3661
3662 echo "  Does Emacs use -lXaw3d?                                 ${HAVE_XAW3D}"
3663 echo "  Does Emacs use -lXpm?                                   ${HAVE_XPM}"
3664 echo "  Does Emacs use -ljpeg?                                  ${HAVE_JPEG}"
3665 echo "  Does Emacs use -ltiff?                                  ${HAVE_TIFF}"
3666 echo "  Does Emacs use a gif library?                           ${HAVE_GIF} $LIBGIF"
3667 echo "  Does Emacs use -lpng?                                   ${HAVE_PNG}"
3668 echo "  Does Emacs use -lrsvg-2?                                ${HAVE_RSVG}"
3669 echo "  Does Emacs use imagemagick?                             ${HAVE_IMAGEMAGICK}"
3670
3671 echo "  Does Emacs use -lgpm?                                   ${HAVE_GPM}"
3672 echo "  Does Emacs use -ldbus?                                  ${HAVE_DBUS}"
3673 echo "  Does Emacs use -lgconf?                                 ${HAVE_GCONF}"
3674 echo "  Does Emacs use -lselinux?                               ${HAVE_LIBSELINUX}"
3675 echo "  Does Emacs use -lgnutls?                                ${HAVE_GNUTLS}"
3676 echo "  Does Emacs use -lxml2?                                  ${HAVE_LIBXML2}"
3677
3678 echo "  Does Emacs use -lfreetype?                              ${HAVE_FREETYPE}"
3679 echo "  Does Emacs use -lm17n-flt?                              ${HAVE_M17N_FLT}"
3680 echo "  Does Emacs use -lotf?                                   ${HAVE_LIBOTF}"
3681 echo "  Does Emacs use -lxft?                                   ${HAVE_XFT}"
3682
3683 echo "  Does Emacs use toolkit scroll bars?                     ${USE_TOOLKIT_SCROLL_BARS}"
3684 echo
3685
3686 if test $USE_XASSERTS = yes; then
3687    echo "  Compiling with asserts turned on."
3688    CPPFLAGS="$CPPFLAGS -DXASSERTS=1"
3689 fi
3690
3691 echo
3692
3693 if test "$HAVE_NS" = "yes"; then
3694    echo
3695    echo "You must run \"make install\" in order to test the built application.
3696 The installed application will go to nextstep/Emacs.app and can be
3697 run or moved from there."
3698    if test "$EN_NS_SELF_CONTAINED" = "yes"; then
3699       echo "The application will be fully self-contained."
3700     else
3701       echo "The lisp resources for the application will be installed under ${prefix}.
3702 You may need to run \"make install\" with sudo.  The application will fail
3703 to run if these resources are not installed."
3704    fi
3705    echo
3706 fi
3707
3708
3709 # Remove any trailing slashes in these variables.
3710 [test "${prefix}" != NONE &&
3711   prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
3712 test "${exec_prefix}" != NONE &&
3713   exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
3714
3715 dnl You might wonder (I did) why epaths.h is generated by running make,
3716 dnl rather than just letting configure generate it from epaths.in.
3717 dnl One reason is that the various paths are not fully expanded (see above);
3718 dnl eg gamedir=${prefix}/var/games/emacs.
3719 dnl Secondly, the GNU Coding standards require that one should be able
3720 dnl to run `make prefix=/some/where/else' and override the values set
3721 dnl by configure.  This also explains the `move-if-change' test and
3722 dnl the use of force in the `epaths-force' rule in Makefile.in.
3723 AC_OUTPUT(Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
3724         doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
3725         doc/lispref/Makefile src/Makefile \
3726         lwlib/Makefile lisp/Makefile leim/Makefile test/automated/Makefile, [
3727
3728 ### Make the necessary directories, if they don't exist.
3729 for dir in etc lisp ; do
3730   test -d ${dir} || mkdir ${dir}
3731 done
3732
3733 echo creating src/epaths.h
3734 ${MAKE-make} epaths-force
3735
3736 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
3737   echo creating src/.gdbinit
3738   echo source $srcdir/src/.gdbinit > src/.gdbinit
3739 fi
3740
3741 ], [GCC="$GCC" NON_GNU_CPP="$NON_GNU_CPP" CPP="$CPP" CPPFLAGS="$CPPFLAGS"])