configure.in

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