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
   6 dnl  Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2003,
   7 dnl    2004, 2005, 2006, 2007, 2008, 2009, 2010  Free Software Foundation, Inc.
   8 dnl
   9 dnl  This file is part of GNU Emacs.
  10 dnl
  11 dnl  GNU Emacs is free software: you can redistribute it and/or modify
  12 dnl  it under the terms of the GNU General Public License as published by
  13 dnl  the Free Software Foundation, either version 3 of the License, or
  14 dnl  (at your option) any later version.
  15 dnl
  16 dnl  GNU Emacs is distributed in the hope that it will be useful,
  17 dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 dnl  GNU General Public License for more details.
  20 dnl
  21 dnl  You should have received a copy of the GNU General Public License
  22 dnl  along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 AC_PREREQ(2.62)
  25 AC_INIT(emacs, 24.0.50)
  26 AC_CONFIG_HEADER(src/config.h:src/config.in)
  27 AC_CONFIG_SRCDIR(src/lisp.h)
  28
  29 dnl Support for --program-prefix, --program-suffix and
  30 dnl --program-transform-name options
  31 AC_ARG_PROGRAM
  32
  33 lispdir='${datadir}/emacs/${version}/lisp'
  34 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
  35 '${datadir}/emacs/site-lisp'
  36 lisppath='${locallisppath}:${lispdir}:${datadir}/emacs/${version}/leim'
  37 etcdir='${datadir}/emacs/${version}/etc'
  38 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
  39 docdir='${datadir}/emacs/${version}/etc'
  40 gamedir='${localstatedir}/games/emacs'
  41
  42 gameuser=games
  43
  44 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
  45 dnl Create a new --with option that defaults to being disabled.
  46 dnl NAME is the base name of the option.  The shell variable with_NAME
  47 dnl   will be set to either the user's value (if the option is
  48 dnl   specified; 'yes' for a plain --with-NAME) or to 'no' (if the
  49 dnl   option is not specified).  Note that the shell variable name is
  50 dnl   constructed as autoconf does, by replacing non-alphanumeric
  51 dnl   characters with "_".
  52 dnl HELP-STRING is the help text for the option.
  53 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
  54   AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
  55     m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
  56 ])dnl
  57
  58 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
  59 dnl Create a new --with option that defaults to being enabled.  NAME
  60 dnl   is the base name of the option.  The shell variable with_NAME
  61 dnl   will be set either to 'no' (for a plain --without-NAME) or to
  62 dnl   'yes' (if the option is not specified).  Note that the shell
  63 dnl   variable name is constructed as autoconf does, by replacing
  64 dnl   non-alphanumeric characters with "_".
  65 dnl HELP-STRING is the help text for the option.
  66 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
  67   AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
  68    m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=yes])dnl
  69 ])dnl
  70
  71 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
  72 if test "$with_pop" = yes; then
  73    AC_DEFINE(MAIL_USE_POP)
  74 fi
  75 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
  76
  77 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
  78 if test "$with_kerberos" != no; then
  79    AC_DEFINE(KERBEROS)
  80 fi
  81 AH_TEMPLATE(KERBEROS,
  82             [Define to support Kerberos-authenticated POP mail retrieval.])dnl
  83
  84 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
  85 if test "${with_kerberos5}" != no; then
  86   if test "${with_kerberos}" = no; then
  87     with_kerberos=yes
  88     AC_DEFINE(KERBEROS)
  89   fi
  90   AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
  91 fi
  92
  93 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
  94 dnl FIXME hesiod support may not be present, so it seems like an error
  95 dnl to define, or at least use, this unconditionally.
  96 if test "$with_hesiod" != no; then
  97   AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
  98 fi
  99
 100 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
 101 if test "$with_mmdf" != no; then
 102    AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
 103 fi
 104
 105 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
 106 if test "$with_mail_unlink" != no; then
 107    AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
 108 fi
 109
 110 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
 111     [string giving default POP mail host])],
 112     AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
 113
 114 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
 115
 116 OPTION_DEFAULT_ON([sync-input],[process async input synchronously])
 117 if test "$with_sync_input" = yes; then
 118    AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])
 119 fi
 120
 121 dnl FIXME currently it is not the last.
 122 dnl This should be the last --with option, because --with-x is
 123 dnl added later on when we find the path of X, and it's best to
 124 dnl keep them together visually.
 125 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
 126  [use an X toolkit (KIT one of: yes or gtk, lucid or athena, motif, no)])],
 127 [         case "${withval}" in
 128             y | ye | yes )      val=gtk ;;
 129             n | no )            val=no  ;;
 130             l | lu | luc | luci | lucid )       val=lucid ;;
 131             a | at | ath | athe | athen | athena )      val=athena ;;
 132             m | mo | mot | moti | motif )       val=motif ;;
 133             g | gt | gtk  )     val=gtk ;;
 134             * )
 135 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
 136 this option's value should be `yes', `no', `lucid', `athena', `motif' or `gtk'.
 137 `yes' and `gtk' are synonyms. `athena' and `lucid' are synonyms.])
 138             ;;
 139           esac
 140           with_x_toolkit=$val
 141 ])
 142
 143 dnl _ON results in a '--without' option in the --help output, so
 144 dnl the help text should refer to "don't compile", etc.
 145 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
 146 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
 147 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
 148 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
 149 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
 150 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
 151
 152 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
 153 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
 154 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
 155
 156 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
 157 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
 158 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
 159 OPTION_DEFAULT_OFF([ns],[use nextstep (Cocoa or GNUstep) windowing system])
 160
 161 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
 162 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
 163 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
 164 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
 165
 166 ## For the times when you want to build Emacs but don't have
 167 ## a suitable makeinfo, and can live without the manuals.
 168 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
 169 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
 170
 171 dnl Can remove these in Emacs 24.
 172 AC_ARG_WITH([gtk],,
 173   [AC_MSG_ERROR([--with-gtk has been removed.  Use --with-x-toolkit to
 174 specify a toolkit.])],,)
 175
 176 AC_ARG_WITH([gcc],,
 177   [AC_MSG_ERROR([--with-gcc has been removed.  Set the `CC' environment
 178 variable to specify a compiler.])],,)
 179
 180 AC_ARG_WITH([pkg-config-prog],dnl
 181 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
 182                   [path to pkg-config for finding GTK and librsvg])])
 183 if test "X${with_pkg_config_prog}" != X; then
 184    if test "${with_pkg_config_prog}" != yes; then
 185       PKG_CONFIG="${with_pkg_config_prog}"
 186    fi
 187 fi
 188
 189 CRT_DIR=
 190 AC_ARG_WITH([crt-dir],dnl
 191 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
 192 The default is /usr/lib, or /usr/lib64 on some platforms.])])
 193 CRT_DIR="${with_crt_dir}"
 194
 195 AC_ARG_WITH([gnustep-conf],dnl
 196 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
 197 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
 198   GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
 199 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
 200      GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
 201
 202 AC_ARG_ENABLE(ns-self-contained,
 203 [AS_HELP_STRING([--disable-ns-self-contained],
 204                 [disable self contained build under NeXTstep])],
 205    EN_NS_SELF_CONTAINED=$enableval,
 206    EN_NS_SELF_CONTAINED=yes)
 207
 208 AC_ARG_ENABLE(asserts,
 209 [AS_HELP_STRING([--enable-asserts], [compile code with asserts enabled])],
 210       USE_XASSERTS=$enableval,
 211       USE_XASSERTS=no)
 212
 213 AC_ARG_ENABLE(maintainer-mode,
 214 [AS_HELP_STRING([--enable-maintainer-mode],
 215                 [enable make rules and dependencies not useful (and sometimes
 216                  confusing) to the casual installer])],
 217       USE_MAINTAINER_MODE=$enableval,
 218       USE_MAINTAINER_MODE=no)
 219 if test $USE_MAINTAINER_MODE = yes; then
 220   MAINT=
 221 else
 222   MAINT=#
 223 fi
 224 AC_SUBST(MAINT)
 225
 226 AC_ARG_ENABLE(locallisppath,
 227 [AS_HELP_STRING([--enable-locallisppath=PATH],
 228                 [directories Emacs should search for lisp files specific
 229                  to this site])],
 230 if test "${enableval}" = "no"; then
 231   locallisppath=
 232 elif test "${enableval}" != "yes"; then
 233   locallisppath=${enableval}
 234 fi)
 235
 236 AC_ARG_ENABLE(checking,
 237 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
 238                 [enable expensive run-time checks.  With LIST,
 239                  enable only specific categories of checks.
 240                  Categories are: all,yes,no.
 241                  Flags are: stringbytes, stringoverrun, stringfreelist,
 242                  xmallocoverrun, conslist])],
 243 [ac_checking_flags="${enableval}"],[])
 244 IFS="${IFS=     }"; ac_save_IFS="$IFS"; IFS="$IFS,"
 245 for check in $ac_checking_flags
 246 do
 247         case $check in
 248         # these set all the flags to specific states
 249         yes)            ac_enable_checking=1 ;;
 250         no)             ac_enable_checking= ;
 251                         ac_gc_check_stringbytes= ;
 252                         ac_gc_check_string_overrun= ;
 253                         ac_gc_check_string_free_list= ;
 254                         ac_xmalloc_overrun= ;
 255                         ac_gc_check_cons_list= ;;
 256         all)            ac_enable_checking=1 ;
 257                         ac_gc_check_stringbytes=1 ;
 258                         ac_gc_check_string_overrun=1 ;
 259                         ac_gc_check_string_free_list=1 ;
 260                         ac_xmalloc_overrun=1 ;
 261                         ac_gc_check_cons_list=1 ;;
 262         # these enable particular checks
 263         stringbytes)    ac_gc_check_stringbytes=1 ;;
 264         stringoverrun)  ac_gc_check_string_overrun=1 ;;
 265         stringfreelist) ac_gc_check_string_free_list=1 ;;
 266         xmallocoverrun) ac_xmalloc_overrun=1 ;;
 267         conslist)       ac_gc_check_cons_list=1 ;;
 268         *)      AC_MSG_ERROR(unknown check category $check) ;;
 269         esac
 270 done
 271 IFS="$ac_save_IFS"
 272
 273 if test x$ac_enable_checking != x ; then
 274   AC_DEFINE(ENABLE_CHECKING, 1,
 275 [Enable expensive run-time checking of data types?])
 276 fi
 277 if test x$ac_gc_check_stringbytes != x ; then
 278   AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
 279 [Define this temporarily to hunt a bug.  If defined, the size of
 280    strings is redundantly recorded in sdata structures so that it can
 281    be compared to the sizes recorded in Lisp strings.])
 282 fi
 283 if test x$ac_gc_check_stringoverrun != x ; then
 284   AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
 285 [Define this to check for short string overrun.])
 286 fi
 287 if test x$ac_gc_check_string_free_list != x ; then
 288   AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
 289 [Define this to check the string free list.])
 290 fi
 291 if test x$ac_xmalloc_overrun != x ; then
 292   AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
 293 [Define this to check for malloc buffer overrun.])
 294 fi
 295 if test x$ac_gc_check_cons_list != x ; then
 296   AC_DEFINE(GC_CHECK_CONS_LIST, 1,
 297 [Define this to check for errors in cons list.])
 298 fi
 299
 300 AC_ARG_ENABLE(profiling,
 301 [AS_HELP_STRING([--enable-profiling],
 302                 [build emacs with profiling support.
 303                  This might not work on all platforms])],
 304 [ac_enable_profiling="${enableval}"],[])
 305 if test x$ac_enable_profiling != x ; then
 306    PROFILING_CFLAGS="-DPROFILING=1 -pg"
 307    PROFILING_LDFLAGS="-pg"
 308 else
 309    PROFILING_CFLAGS=
 310    PROFILING_LDFLAGS=
 311 fi
 312
 313 AC_ARG_ENABLE(autodepend,
 314 [AS_HELP_STRING([--enable-autodepend],
 315                 [automatically generate dependencies to .h-files.
 316                  Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
 317                  found])],
 318 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
 319
 320 #### Make srcdir absolute, if it isn't already.  It's important to
 321 #### avoid running the path through pwd unnecessarily, since pwd can
 322 #### give you automounter prefixes, which can go away.  We do all this
 323 #### so Emacs can find its files when run uninstalled.
 324 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
 325 unset CDPATH
 326 case "${srcdir}" in
 327   /* ) ;;
 328   . )
 329     ## We may be able to use the $PWD environment variable to make this
 330     ## absolute.  But sometimes PWD is inaccurate.
 331     ## Note: we used to use ${PWD} at the end instead of `pwd`,
 332     ## but that tested only for a well-formed and valid PWD,
 333     ## it did not object when PWD was well-formed and valid but just wrong.
 334     if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`"  ;
 335     then
 336       srcdir="$PWD"
 337     else
 338       srcdir="`(cd ${srcdir}; pwd)`"
 339     fi
 340   ;;
 341   *  ) srcdir="`(cd ${srcdir}; pwd)`" ;;
 342 esac
 343
 344 #### Check if the source directory already has a configured system in it.
 345 if test `pwd` != `(cd ${srcdir} && pwd)` \
 346    && test -f "${srcdir}/src/config.h" ; then
 347   AC_MSG_WARN([[The directory tree `${srcdir}' is being used
 348    as a build directory right now; it has been configured in its own
 349    right.  To configure in another directory as well, you MUST
 350    use GNU make.  If you do not have GNU make, then you must
 351    now do `make distclean' in ${srcdir},
 352    and then run $0 again.]])
 353 fi
 354
 355 #### Given the configuration name, set machfile and opsysfile to the
 356 #### names of the m/*.h and s/*.h files we should use.
 357
 358 ### Canonicalize the configuration name.
 359
 360 AC_CANONICAL_HOST
 361 canonical=$host
 362 configuration=${host_alias-${build_alias-$host}}
 363
 364 dnl This used to use changequote, but, apart from `changequote is evil'
 365 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
 366 dnl the great gob of text.  Thus it's not processed for possible expansion.
 367 dnl Just make sure the brackets remain balanced.
 368 dnl
 369 dnl Since Emacs can't find matching pairs of quotes, boundaries are
 370 dnl indicated by comments.
 371 dnl quotation begins
 372 [
 373
 374 ### If you add support for a new configuration, add code to this
 375 ### switch statement to recognize your configuration name and select
 376 ### the appropriate operating system and machine description files.
 377
 378 ### You would hope that you could choose an m/*.h file pretty much
 379 ### based on the machine portion of the configuration name, and an s-
 380 ### file based on the operating system portion.  However, it turns out
 381 ### that each m/*.h file is pretty manufacturer-specific - for
 382 ### example mips.h is MIPS
 383 ### So we basically have to have a special case for each
 384 ### configuration name.
 385 ###
 386 ### As far as handling version numbers on operating systems is
 387 ### concerned, make sure things will fail in a fixable way.  If
 388 ### /etc/MACHINES doesn't say anything about version numbers, be
 389 ### prepared to handle anything reasonably.  If version numbers
 390 ### matter, be sure /etc/MACHINES says something about it.
 391 ###
 392 ### Eric Raymond says we should accept strings like "sysvr4" to mean
 393 ### "System V Release 4"; he writes, "The old convention encouraged
 394 ### confusion between `system' and `release' levels'."
 395
 396 machine='' opsys='' unported=no
 397 case "${canonical}" in
 398
 399   ## FreeBSD ports
 400   *-*-freebsd* )
 401     opsys=freebsd
 402     case "${canonical}" in
 403       alpha*-*-freebsd*)        machine=alpha ;;
 404       arm*-*-freebsd*)          machine=arm ;;
 405       ia64-*-freebsd*)          machine=ia64 ;;
 406       sparc-*-freebsd*)         machine=sparc ;;
 407       sparc64-*-freebsd*)       machine=sparc ;;
 408       powerpc-*-freebsd*)       machine=macppc ;;
 409       i[3456]86-*-freebsd*)     machine=intel386 ;;
 410       amd64-*-freebsd*|x86_64-*-freebsd*) machine=amdx86-64 ;;
 411     esac
 412   ;;
 413
 414   ## FreeBSD kernel + glibc based userland
 415   *-*-kfreebsd*gnu* )
 416     opsys=gnu-kfreebsd
 417     case "${canonical}" in
 418       alpha*-*-kfreebsd*)       machine=alpha ;;
 419       ia64-*-kfreebsd*)         machine=ia64 ;;
 420       sparc-*-kfreebsd*)        machine=sparc ;;
 421       sparc64-*-kfreebsd*)      machine=sparc ;;
 422       powerpc-*-kfreebsd*)      machine=macppc ;;
 423       i[3456]86-*-kfreebsd*)    machine=intel386 ;;
 424       amd64-*-kfreebsd*|x86_64-*-kfreebsd*) machine=amdx86-64 ;;
 425     esac
 426   ;;
 427
 428   ## NetBSD ports
 429   *-*-netbsd* )
 430     opsys=netbsd
 431     if test -f /usr/lib/crti.o; then]
 432 dnl The close and open brackets here are because this section is quoted --
 433 dnl see the `changequote' comment above.
 434       AC_DEFINE(HAVE_CRTIN, [], [Define to 1 if you have /usr/lib/crti.o.])
 435 [   fi
 436
 437     case "${canonical}" in
 438       alpha*-*-netbsd*) machine=alpha ;;
 439       i[3456]86-*-netbsd*) machine=intel386 ;;
 440       mips-*-netbsd*)   machine=mips ;;
 441       mipsel-*-netbsd*) machine=mips ;;
 442       mipseb-*-netbsd*) machine=mips ;;
 443       powerpc-*-netbsd*) machine=macppc ;;
 444       sparc*-*-netbsd*) machine=sparc ;;
 445       vax-*-netbsd*)    machine=vax ;;
 446       arm-*-netbsd*)    machine=arm ;;
 447       x86_64-*-netbsd*) machine=amdx86-64 ;;
 448       hppa-*-netbsd*)   machine=hp800 ;;
 449       m68k-*-netbsd*)   machine=m68k ;;
 450     esac
 451   ;;
 452
 453   ## OpenBSD ports
 454   *-*-openbsd* )
 455     opsys=openbsd
 456     case "${canonical}" in
 457       alpha*-*-openbsd*)        machine=alpha ;;
 458       arm-*-openbsd*)          machine=arm ;;
 459       i386-*-openbsd*)         machine=intel386 ;;
 460       powerpc-*-openbsd*)      machine=macppc ;;
 461       sparc*-*-openbsd*)       machine=sparc ;;
 462       vax-*-openbsd*)          machine=vax ;;
 463       x86_64-*-openbsd*)       machine=amdx86-64 ;;
 464       hppa-*-openbsd*)         machine=hp800 ;;
 465     esac
 466   ;;
 467
 468   alpha*-*-linux-gnu* )
 469     machine=alpha opsys=gnu-linux
 470   ;;
 471
 472   arm*-*-linux-gnu* )
 473     machine=arm opsys=gnu-linux
 474   ;;
 475
 476   ## Apple Darwin / Mac OS X
 477   *-apple-darwin* )
 478     case "${canonical}" in
 479       i[3456]86-* )  machine=intel386 ;;
 480       powerpc-* )    machine=macppc ;;
 481       x86_64-* )     machine=amdx86-64 ;;
 482       * )            unported=yes ;;
 483     esac
 484     opsys=darwin
 485     # Define CPP as follows to make autoconf work correctly.
 486     CPP="${CC-cc} -E -no-cpp-precomp"
 487     # Use fink packages if available.
 488     if test -d /sw/include && test -d /sw/lib; then
 489       GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
 490       CPP="${CPP} ${GCC_TEST_OPTIONS}"
 491       NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
 492     fi
 493   ;;
 494
 495   ## HP 9000 series 700 and 800, running HP/UX
 496   hppa*-hp-hpux10.2* )
 497     machine=hp800 opsys=hpux10-20
 498   ;;
 499   hppa*-hp-hpux1[1-9]* )
 500     machine=hp800 opsys=hpux11
 501     CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
 502   ;;
 503
 504   hppa*-*-linux-gnu* )
 505     machine=hp800 opsys=gnu-linux
 506   ;;
 507
 508   ## IBM machines
 509   s390-*-linux-gnu* )
 510     machine=ibms390 opsys=gnu-linux
 511   ;;
 512   s390x-*-linux-gnu* )
 513     machine=ibms390x opsys=gnu-linux
 514   ;;
 515   rs6000-ibm-aix4.2* | powerpc-ibm-aix4.2*  )
 516     machine=ibmrs6000 opsys=aix4-2
 517   ;;
 518   rs6000-ibm-aix4.3* | powerpc-ibm-aix4.3*  )
 519     machine=ibmrs6000 opsys=aix4-2
 520   ;;
 521   rs6000-ibm-aix5* | powerpc-ibm-aix5*  )
 522     machine=ibmrs6000 opsys=aix4-2
 523   ;;
 524   rs6000-ibm-aix6* | powerpc-ibm-aix6*  )
 525     machine=ibmrs6000 opsys=aix4-2
 526   ;;
 527
 528   ## Macintosh PowerPC
 529   powerpc*-*-linux-gnu* )
 530     machine=macppc opsys=gnu-linux
 531   ;;
 532
 533   ## Silicon Graphics machines
 534   ## Iris 4D
 535   mips-sgi-irix6.5 )
 536     machine=iris4d opsys=irix6-5
 537     # Without defining _LANGUAGE_C, things get masked out in the headers
 538     # so that, for instance, grepping for `free' in stdlib.h fails and
 539     # AC_HEADER_STD_C fails.   (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
 540     NON_GNU_CPP="/lib/cpp -D_LANGUAGE_C"
 541     NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
 542   ;;
 543
 544   ## Suns
 545   sparc-*-linux-gnu* | sparc64-*-linux-gnu* )
 546     machine=sparc opsys=gnu-linux
 547   ;;
 548
 549   *-sun-solaris* \
 550     | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
 551     | x86_64-*-solaris2*    | x86_64-*-sunos5*)
 552     case "${canonical}" in
 553       i[3456]86-*-* )     machine=intel386 ;;
 554       amd64-*-*|x86_64-*-*)     machine=amdx86-64 ;;
 555       sparc* )          machine=sparc ;;
 556       * )               unported=yes ;;
 557     esac
 558     case "${canonical}" in
 559       *-sunos5.6* | *-solaris2.6* )
 560                 opsys=sol2-6
 561                 NON_GNU_CPP=/usr/ccs/lib/cpp
 562                 RANLIB="ar -ts"
 563                 ;;
 564       *-sunos5.[7-9]* | *-solaris2.[7-9]* )
 565                 opsys=sol2-6
 566                 emacs_check_sunpro_c=yes
 567                 NON_GNU_CPP=/usr/ccs/lib/cpp
 568                 ;;
 569       *-sunos5* | *-solaris* )
 570                 opsys=sol2-10
 571                 emacs_check_sunpro_c=yes
 572                 NON_GNU_CPP=/usr/ccs/lib/cpp
 573                 ;;
 574     esac
 575     ## Watch out for a compiler that we know will not work.
 576     case "${canonical}" in
 577      *-solaris* | *-sunos5* )
 578                 if [ "x$CC" = x/usr/ucb/cc ]; then
 579                   ## /usr/ucb/cc doesn't work;
 580                   ## we should find some other compiler that does work.
 581                   unset CC
 582                 fi
 583                 ;;
 584       *) ;;
 585     esac
 586   ;;
 587
 588   ## IA-64
 589   ia64*-*-linux* )
 590     machine=ia64 opsys=gnu-linux
 591   ;;
 592
 593   ## Intel 386 machines where we don't care about the manufacturer
 594   i[3456]86-*-* )
 595     machine=intel386
 596     case "${canonical}" in
 597       *-cygwin )                opsys=cygwin ;;
 598       *-darwin* )               opsys=darwin
 599                                 CPP="${CC-cc} -E -no-cpp-precomp"
 600                                 ;;
 601       *-linux-gnu* )            opsys=gnu-linux ;;
 602       *-sysv4.2uw* )            opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
 603       *-sysv5uw* )              opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
 604       *-sysv5OpenUNIX* )        opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
 605       ## Otherwise, we'll fall through to the generic opsys code at the bottom.
 606     esac
 607   ;;
 608
 609   ## m68k Linux-based GNU system
 610   m68k-*-linux-gnu* )
 611     machine=m68k opsys=gnu-linux
 612   ;;
 613
 614   ## Mips Linux-based GNU system
 615   mips-*-linux-gnu* | mipsel-*-linux-gnu* \
 616     | mips64-*-linux-gnu* | mips64el-*-linux-gnu* )
 617     machine=mips opsys=gnu-linux
 618   ;;
 619
 620   ## AMD x86-64 Linux-based GNU system
 621   x86_64-*-linux-gnu* )
 622     machine=amdx86-64 opsys=gnu-linux
 623   ;;
 624
 625   ## Tensilica Xtensa Linux-based GNU system
 626   xtensa*-*-linux-gnu* )
 627     machine=xtensa opsys=gnu-linux
 628     ;;
 629
 630   ## SuperH Linux-based GNU system
 631   sh[34]*-*-linux-gnu* )
 632     machine=sh3 opsys=gnu-linux
 633   ;;
 634
 635   * )
 636     unported=yes
 637   ;;
 638 esac
 639
 640 ### If the code above didn't choose an operating system, just choose
 641 ### an operating system based on the configuration name.  You really
 642 ### only want to use this when you have no idea what the right
 643 ### operating system is; if you know what operating systems a machine
 644 ### runs, it's cleaner to make it explicit in the case statement
 645 ### above.
 646 if test x"${opsys}" = x; then
 647   case "${canonical}" in
 648     *-gnu* )                            opsys=gnu ;;
 649     * )
 650       unported=yes
 651     ;;
 652   esac
 653 fi
 654
 655 ]
 656 dnl quotation ends
 657
 658 if test $unported = yes; then
 659   AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
 660 Check `etc/MACHINES' for recognized configuration names.])
 661 fi
 662
 663 machfile="m/${machine}.h"
 664 opsysfile="s/${opsys}.h"
 665
 666
 667 #### Choose a compiler.
 668 test -n "$CC" && cc_specified=yes
 669
 670 # Save the value of CFLAGS that the user specified.
 671 SPECIFIED_CFLAGS="$CFLAGS"
 672
 673 dnl Sets GCC=yes if using gcc.
 674 AC_PROG_CC
 675
 676 # On Suns, sometimes $CPP names a directory.
 677 if test -n "$CPP" && test -d "$CPP"; then
 678   CPP=
 679 fi
 680
 681 ## If not using gcc, and on Solaris, and no CPP specified, see if
 682 ## using a Sun compiler, which needs -Xs to prevent whitespace.
 683 if test x"$GCC" != xyes && test x"$emacs_check_sunpro_c" = xyes && \
 684  test x"$CPP" = x; then
 685   AC_MSG_CHECKING([whether we are using a Sun C compiler])
 686   AC_CACHE_VAL(emacs_cv_sunpro_c,
 687   [AC_TRY_LINK([],
 688 [#ifndef __SUNPRO_C
 689 fail;
 690 #endif
 691 ], emacs_cv_sunpro_c=yes, emacs_cv_sunpro_c=no)])
 692   AC_MSG_RESULT($emacs_cv_sunpro_c)
 693
 694   if test x"$emacs_cv_sunpro_c" = xyes; then
 695     NON_GNU_CPP="$CC -E -Xs"
 696   fi
 697 fi
 698
 699 #### Some systems specify a CPP to use unless we are using GCC.
 700 #### Now that we know whether we are using GCC, we can decide whether
 701 #### to use that one.
 702 if test "x$NON_GNU_CPP" != x && test x$GCC != xyes && test "x$CPP" = x
 703 then
 704   CPP="$NON_GNU_CPP"
 705 fi
 706
 707 #### Some systems specify a CC to use unless we are using GCC.
 708 #### Now that we know whether we are using GCC, we can decide whether
 709 #### to use that one.
 710 if test "x$NON_GNU_CC" != x && test x$GCC != xyes &&
 711   test x$cc_specified != xyes
 712 then
 713   CC="$NON_GNU_CC"
 714 fi
 715
 716 if test x$GCC = xyes && test "x$GCC_TEST_OPTIONS" != x
 717 then
 718   CC="$CC $GCC_TEST_OPTIONS"
 719 fi
 720
 721 if test x$GCC = x && test "x$NON_GCC_TEST_OPTIONS" != x
 722 then
 723   CC="$CC $NON_GCC_TEST_OPTIONS"
 724 fi
 725
 726 dnl checks for Unix variants
 727 AC_USE_SYSTEM_EXTENSIONS
 728
 729 ### Use -Wno-pointer-sign if the compiler supports it
 730 AC_MSG_CHECKING([whether gcc understands -Wno-pointer-sign])
 731 SAVE_CFLAGS="$CFLAGS"
 732 CFLAGS="$CFLAGS -Wno-pointer-sign"
 733 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 734 if test $has_option = yes; then
 735    C_WARNINGS_SWITCH="-Wno-pointer-sign $C_WARNINGS_SWITCH"
 736 fi
 737 AC_MSG_RESULT($has_option)
 738 CFLAGS="$SAVE_CFLAGS"
 739 unset has_option
 740 unset SAVE_CFLAGS
 741
 742 ### Use -Wdeclaration-after-statement if the compiler supports it
 743 AC_MSG_CHECKING([whether gcc understands -Wdeclaration-after-statement])
 744 SAVE_CFLAGS="$CFLAGS"
 745 CFLAGS="$CFLAGS -Wdeclaration-after-statement"
 746 AC_TRY_COMPILE([], [], has_option=yes, has_option=no,)
 747 if test $has_option = yes; then
 748    C_WARNINGS_SWITCH="-Wdeclaration-after-statement $C_WARNINGS_SWITCH"
 749 fi
 750 AC_MSG_RESULT($has_option)
 751 CFLAGS="$SAVE_CFLAGS"
 752 unset has_option
 753 unset SAVE_CFLAGS
 754
 755 #### Some other nice autoconf tests.
 756
 757 dnl checks for programs
 758 AC_PROG_LN_S
 759 AC_PROG_CPP
 760 AC_PROG_INSTALL
 761 if test "x$RANLIB" = x; then
 762   AC_PROG_RANLIB
 763 fi
 764
 765 ## Although we're running on an amd64 kernel, we're actually compiling for
 766 ## the x86 architecture.  The user should probably have provided an
 767 ## explicit --build to `configure', but if everything else than the kernel
 768 ## is running in i386 mode, we can help them out.
 769 if test "$machine" = "amdx86-64"; then
 770   AC_CHECK_DECL([i386])
 771   if test "$ac_cv_have_decl_i386" = "yes"; then
 772     canonical=`echo "$canonical" | sed -e 's/^amd64/i386/' -e 's/^x86_64/i386/'`
 773     machine=intel386
 774     machfile="m/${machine}.h"
 775   fi
 776 fi
 777
 778 AC_PATH_PROG(INSTALL_INFO, install-info)
 779 AC_PATH_PROG(INSTALL_INFO, install-info,, /usr/sbin)
 780 AC_PATH_PROG(INSTALL_INFO, install-info,:, /sbin)
 781 dnl Don't use GZIP, which is used by gzip for additional parameters.
 782 AC_PATH_PROG(GZIP_PROG, gzip)
 783
 784
 785 ## Need makeinfo >= 4.6 (?) to build the manuals.
 786 AC_PATH_PROG(MAKEINFO, makeinfo, no)
 787 dnl By this stage, configure has already checked for egrep and set EGREP,
 788 dnl or exited with an error if no egrep was found.
 789 if test "$MAKEINFO" != "no" && \
 790   test x"`$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
 791    MAKEINFO=no
 792 fi
 793
 794 ## Makeinfo is unusual.  For a released Emacs, the manuals are
 795 ## pre-built, and not deleted by the normal clean rules.  makeinfo is
 796 ## therefore in the category of "special tools" not normally required, which
 797 ## configure does not have to check for (eg autoconf itself).
 798 ## In a Bazaar checkout on the other hand, the manuals are not included.
 799 ## So makeinfo is a requirement to build from Bazaar, and configure
 800 ## should test for it as it does for any other build requirement.
 801 ## We use the presence of $srcdir/info/emacs to distinguish a release,
 802 ## with pre-built manuals, from a Bazaar checkout.
 803 if test "$MAKEINFO" = "no"; then
 804   if test "x${with_makeinfo}" = "xno"; then
 805     MAKEINFO=off
 806   elif test ! -e $srcdir/info/emacs; then
 807     AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.6, and your
 808 source tree does not seem to have pre-built manuals in the `info' directory.
 809 Either install a suitable version of makeinfo, or re-run configure
 810 with the `--without-makeinfo' option to build without the manuals.] )
 811   fi
 812 fi
 813
 814 dnl Add our options to ac_link now, after it is set up.
 815
 816 if test x$GCC = xyes && test "x$GCC_LINK_TEST_OPTIONS" != x
 817 then
 818   ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
 819 fi
 820
 821 if test x$GCC = x && test "x$NON_GCC_LINK_TEST_OPTIONS" != x
 822 then
 823   ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
 824 fi
 825
 826 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
 827 dnl If we can link with the flag, it shouldn't do any harm anyhow.
 828 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
 829 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
 830 dnl if not built to support GNU ld.
 831
 832 late_LDFLAGS=$LDFLAGS
 833 if test "$GCC" = yes; then
 834   LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
 835 else
 836   LDFLAGS="$LDFLAGS -znocombreloc"
 837 fi
 838
 839 AC_MSG_CHECKING([for -znocombreloc])
 840 AC_LINK_IFELSE([main(){return 0;}],
 841   [AC_MSG_RESULT(yes)],
 842   LDFLAGS=$late_LDFLAGS
 843   [AC_MSG_RESULT(no)])
 844
 845 LIB_MATH=-lm
 846
 847 case $opsys in
 848   cygwin )
 849     LIB_MATH=
 850     ;;
 851   darwin )
 852     ## Adding -lm confuses the dynamic linker, so omit it.
 853     LIB_MATH=
 854     ;;
 855 esac
 856
 857 AC_SUBST(LIB_MATH)
 858
 859 #### Extract some information from the operating system and machine files.
 860
 861 AC_CHECKING([the machine- and system-dependent files to find out
 862  - which libraries the lib-src programs will want, and
 863  - whether the GNU malloc routines are usable])
 864
 865 ### First figure out CFLAGS (which we use for running the compiler here)
 866 ### and REAL_CFLAGS (which we use for real compilation).
 867 ### The two are the same except on a few systems, where they are made
 868 ### different to work around various lossages.  For example,
 869 ### GCC 2.5 on GNU/Linux needs them to be different because it treats -g
 870 ### as implying static linking.
 871
 872 ### If the CFLAGS env var is specified, we use that value
 873 ### instead of the default.
 874
 875 ### It's not important that this name contain the PID; you can't run
 876 ### two configures in the same directory and have anything work
 877 ### anyway.
 878 tempcname="conftest.c"
 879
 880 echo '
 881 #include "'${srcdir}'/src/'${opsysfile}'"
 882 #include "'${srcdir}'/src/'${machfile}'"
 883 #ifndef LIBS_SYSTEM
 884 #define LIBS_SYSTEM
 885 #endif
 886 configure___ libsrc_libs=LIBS_SYSTEM
 887
 888 configure___ LIBX=-lX11
 889
 890 configure___ unexec=UNEXEC
 891
 892 #ifdef SYSTEM_MALLOC
 893 configure___ system_malloc=yes
 894 #else
 895 configure___ system_malloc=no
 896 #endif
 897
 898 #ifdef USE_MMAP_FOR_BUFFERS
 899 configure___ use_mmap_for_buffers=yes
 900 #else
 901 configure___ use_mmap_for_buffers=no
 902 #endif
 903
 904 #ifndef C_OPTIMIZE_SWITCH
 905 #ifdef __GNUC__
 906 #define C_OPTIMIZE_SWITCH -O2
 907 #else
 908 #define C_OPTIMIZE_SWITCH -O
 909 #endif
 910 #endif
 911
 912 #ifndef C_WARNINGS_SWITCH
 913 #define C_WARNINGS_SWITCH ${C_WARNINGS_SWITCH}
 914 #endif
 915
 916 #ifndef LD_SWITCH_SYSTEM
 917 #define LD_SWITCH_SYSTEM
 918 #endif
 919
 920 #ifndef LD_SWITCH_X_SITE_AUX
 921 #define LD_SWITCH_X_SITE_AUX
 922 #endif
 923
 924 configure___ ld_switch_system=LD_SWITCH_SYSTEM
 925
 926 #ifdef THIS_IS_CONFIGURE
 927
 928 /* Get the CFLAGS for tests in configure.  */
 929 #ifdef __GNUC__
 930 configure___ CFLAGS=-g C_OPTIMIZE_SWITCH '${SPECIFIED_CFLAGS}'
 931 #else
 932 configure___ CFLAGS='${SPECIFIED_CFLAGS}'
 933 #endif
 934
 935 #else /* not THIS_IS_CONFIGURE */
 936
 937 /* Get the CFLAGS for real compilation.  */
 938 #ifdef __GNUC__
 939 configure___ REAL_CFLAGS=-g C_OPTIMIZE_SWITCH C_WARNINGS_SWITCH ${PROFILING_CFLAGS} '${SPECIFIED_CFLAGS}'
 940 #else
 941 configure___ REAL_CFLAGS='${SPECIFIED_CFLAGS}'
 942 #endif
 943
 944 #endif /* not THIS_IS_CONFIGURE */
 945 ' > ${tempcname}
 946
 947 LDFLAGS="${LDFLAGS} ${PROFILING_LDFLAGS}"
 948
 949 # The value of CPP is a quoted variable reference, so we need to do this
 950 # to get its actual value...
 951 CPP=`eval "echo $CPP"`
 952 [eval `${CPP} -Isrc ${tempcname} \
 953        | sed -n -e 's/^configure___ \([^=]*=\)\(.*\)$/\1"\2"/p'`
 954 if test "x$SPECIFIED_CFLAGS" = x; then
 955   eval `${CPP} -Isrc -DTHIS_IS_CONFIGURE ${tempcname} \
 956          | sed -n -e 's/^configure___ \([^=]*=\)\(.*\)$/\1"\2"/p'`
 957 else
 958   REAL_CFLAGS="$CFLAGS"
 959 fi]
 960 rm ${tempcname}
 961
 962 ac_link="$ac_link $ld_switch_system"
 963
 964
 965 C_SWITCH_MACHINE=
 966 if test "$machine" = "alpha"; then
 967   AC_CHECK_DECL([__ELF__])
 968   if test "$ac_cv_have_decl___ELF__" = "yes"; then
 969     ## With ELF, make sure that all common symbols get allocated to in the
 970     ## data section.  Otherwise, the dump of temacs may miss variables in
 971     ## the shared library that have been initialized.  For example, with
 972     ## GNU libc, __malloc_initialized would normally be resolved to the
 973     ## shared library's .bss section, which is fatal.
 974     if test "x$GCC" = "xyes"; then
 975       C_SWITCH_MACHINE="-fno-common"
 976     else
 977       AC_MSG_ERROR([What gives?  Fix me if DEC Unix supports ELF now.])
 978     fi
 979   fi
 980 fi
 981 AC_SUBST(C_SWITCH_MACHINE)
 982
 983
 984 C_SWITCH_SYSTEM=
 985 ## Some programs in src produce warnings saying certain subprograms
 986 ## are too complex and need a MAXMEM value greater than 2000 for
 987 ## additional optimization.  --nils@exp-math.uni-essen.de
 988 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
 989   C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
 990 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
 991 ## It is redundant in glibc2, since we define _GNU_SOURCE.
 992 AC_SUBST(C_SWITCH_SYSTEM)
 993
 994
 995 ### Make sure subsequent tests use flags consistent with the build flags.
 996
 997 if test x"${OVERRIDE_CPPFLAGS}" != x; then
 998   CPPFLAGS="${OVERRIDE_CPPFLAGS}"
 999 else
1000   CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1001 fi
1002
1003 dnl For AC_FUNC_GETLOADAVG, at least:
1004 AC_CONFIG_LIBOBJ_DIR(src)
1005
1006 dnl Do this early because it can frob feature test macros for Unix-98 &c.
1007 AC_SYS_LARGEFILE
1008
1009
1010 ## If user specified a crt-dir, use that unconditionally.
1011 if test "X$CRT_DIR" = "X"; then
1012
1013   case "$canonical" in
1014     x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1015     ## On x86-64 and s390x GNU/Linux distributions, the standard library
1016     ## can be in a variety of places.  We only try /usr/lib64 and /usr/lib.
1017     ## For anything else (eg /usr/lib32), it is up the user to specify
1018     ## the location (bug#5655).
1019     ## Test for crtn.o, not just the directory, because sometimes the
1020     ## directory exists but does not have the relevant files (bug#1287).
1021     ## FIXME better to test for binary compatibility somehow.
1022     test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1023     ;;
1024
1025     powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1026   esac
1027
1028   case "$opsys" in
1029     hpux10-20) CRT_DIR=/lib ;;
1030   esac
1031
1032   ## Default is /usr/lib.
1033   test "X$CRT_DIR" = "X" && CRT_DIR=/usr/lib
1034
1035 else
1036
1037   ## Some platforms don't use any of these files, so it is not
1038   ## appropriate to put this test outside the if block.
1039   test -e $CRT_DIR/crtn.o || test -e $CRT_DIR/crt0.o || \
1040     AC_MSG_ERROR([crt*.o not found in specified location.])
1041
1042 fi
1043
1044 AC_SUBST(CRT_DIR)
1045
1046
1047 dnl This function defintion taken from Gnome 2.0
1048 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1049 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1050 dnl also defines GSTUFF_PKG_ERRORS on error
1051 AC_DEFUN([PKG_CHECK_MODULES], [
1052   succeeded=no
1053
1054   AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1055
1056   if test "$PKG_CONFIG" = "no" ; then
1057      ifelse([$4], , [AC_MSG_ERROR([
1058       *** 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])
1059   else
1060      PKG_CONFIG_MIN_VERSION=0.9.0
1061      if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1062         AC_MSG_CHECKING(for $2)
1063
1064         if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD; then
1065             AC_MSG_RESULT(yes)
1066             succeeded=yes
1067
1068             AC_MSG_CHECKING($1_CFLAGS)
1069             $1_CFLAGS=`$PKG_CONFIG --cflags "$2"|sed -e 's,///*,/,g'`
1070             AC_MSG_RESULT($$1_CFLAGS)
1071
1072             AC_MSG_CHECKING($1_LIBS)
1073             $1_LIBS=`$PKG_CONFIG --libs "$2"|sed -e 's,///*,/,g'`
1074             AC_MSG_RESULT($$1_LIBS)
1075         else
1076             AC_MSG_RESULT(no)
1077             $1_CFLAGS=""
1078             $1_LIBS=""
1079             ## If we have a custom action on failure, don't print errors, but
1080             ## do set a variable so people can do so.
1081             $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1082             ifelse([$4], ,echo $$1_PKG_ERRORS,)
1083         fi
1084
1085         AC_SUBST($1_CFLAGS)
1086         AC_SUBST($1_LIBS)
1087      else
1088         echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1089         echo "*** See http://www.freedesktop.org/software/pkgconfig"
1090      fi
1091   fi
1092
1093   if test $succeeded = yes; then
1094      ifelse([$3], , :, [$3])
1095   else
1096      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.])], [$4])
1097   fi
1098 ])
1099
1100
1101 if test "${with_sound}" != "no"; then
1102   # Sound support for GNU/Linux and the free BSDs.
1103   AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h)
1104   # Emulation library used on NetBSD.
1105   AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1106   AC_SUBST(LIBSOUND)
1107
1108   ALSA_REQUIRED=1.0.0
1109   ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1110   PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1111   if test $HAVE_ALSA = yes; then
1112     SAVE_CFLAGS="$CFLAGS"
1113     SAVE_LDFLAGS="$LDFLAGS"
1114     CFLAGS="$ALSA_CFLAGS $CFLAGS"
1115     LDFLAGS="$ALSA_LIBS $LDFLAGS"
1116     AC_TRY_COMPILE([#include <asoundlib.h>], [snd_lib_error_set_handler (0);],
1117                     emacs_alsa_normal=yes,
1118                     emacs_alsa_normal=no)
1119     if test "$emacs_alsa_normal" != yes; then
1120       AC_TRY_COMPILE([#include <alsa/asoundlib.h>],
1121                      [snd_lib_error_set_handler (0);],
1122                      emacs_alsa_subdir=yes,
1123                      emacs_alsa_subdir=no)
1124       if test "$emacs_alsa_subdir" != yes; then
1125         AC_MSG_ERROR([pkg-config found alsa, but it does not compile.  See config.log for error messages.])
1126       fi
1127       ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1128     fi
1129
1130     CFLAGS="$SAVE_CFLAGS"
1131     LDFLAGS="$SAVE_LDFLAGS"
1132     LIBSOUND="$LIBSOUND $ALSA_LIBS"
1133     CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1134     AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1135   fi
1136   AC_SUBST(CFLAGS_SOUND)
1137 fi
1138
1139 dnl checks for header files
1140 AC_CHECK_HEADERS(sys/select.h sys/timeb.h sys/time.h unistd.h utime.h \
1141   linux/version.h sys/systeminfo.h termios.h limits.h string.h stdlib.h \
1142   stdio_ext.h fcntl.h strings.h coff.h pty.h sys/mman.h \
1143   sys/param.h sys/vlimit.h sys/resource.h locale.h sys/_mbstate_t.h \
1144   sys/utsname.h pwd.h utmp.h)
1145
1146 AC_MSG_CHECKING(if personality LINUX32 can be set)
1147 AC_TRY_COMPILE([#include <sys/personality.h>], [personality (PER_LINUX32)],
1148                emacs_cv_personality_linux32=yes,
1149                emacs_cv_personality_linux32=no)
1150 AC_MSG_RESULT($emacs_cv_personality_linux32)
1151
1152 if test $emacs_cv_personality_linux32 = yes; then
1153   AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1154             [Define to 1 if personality LINUX32 can be set.])
1155 fi
1156
1157 dnl On Solaris 8 there's a compilation warning for term.h because
1158 dnl it doesn't define `bool'.
1159 AC_CHECK_HEADERS(term.h, , , -)
1160 AC_HEADER_STDC
1161 AC_HEADER_TIME
1162 AC_CHECK_DECLS([sys_siglist])
1163 if test $ac_cv_have_decl_sys_siglist != yes; then
1164   # For Tru64, at least:
1165   AC_CHECK_DECLS([__sys_siglist])
1166   if test $ac_cv_have_decl___sys_siglist = yes; then
1167     AC_DEFINE(sys_siglist, __sys_siglist,
1168               [Define to any substitute for sys_siglist.])
1169   fi
1170 fi
1171 AC_HEADER_SYS_WAIT
1172
1173 dnl Some systems have utime.h but don't declare the struct anyplace.
1174 AC_CACHE_CHECK(for struct utimbuf, emacs_cv_struct_utimbuf,
1175 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
1176 #include <sys/time.h>
1177 #include <time.h>
1178 #else
1179 #ifdef HAVE_SYS_TIME_H
1180 #include <sys/time.h>
1181 #else
1182 #include <time.h>
1183 #endif
1184 #endif
1185 #ifdef HAVE_UTIME_H
1186 #include <utime.h>
1187 #endif], [static struct utimbuf x; x.actime = x.modtime;],
1188   emacs_cv_struct_utimbuf=yes, emacs_cv_struct_utimbuf=no))
1189 if test $emacs_cv_struct_utimbuf = yes; then
1190   AC_DEFINE(HAVE_STRUCT_UTIMBUF, 1, [Define to 1 if `struct utimbuf' is declared by <utime.h>.])
1191 fi
1192
1193 dnl checks for typedefs
1194 AC_TYPE_SIGNAL
1195
1196 dnl Check for speed_t typedef.
1197 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1198   [AC_TRY_COMPILE([#include <termios.h>], [speed_t x = 1;],
1199     emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1200 if test $emacs_cv_speed_t = yes; then
1201   AC_DEFINE(HAVE_SPEED_T, 1,
1202            [Define to 1 if `speed_t' is declared by <termios.h>.])
1203 fi
1204
1205 AC_CACHE_CHECK(for struct timeval, emacs_cv_struct_timeval,
1206 AC_TRY_COMPILE([#ifdef TIME_WITH_SYS_TIME
1207 #include <sys/time.h>
1208 #include <time.h>
1209 #else
1210 #ifdef HAVE_SYS_TIME_H
1211 #include <sys/time.h>
1212 #else
1213 #include <time.h>
1214 #endif
1215 #endif], [static struct timeval x; x.tv_sec = x.tv_usec;],
1216   emacs_cv_struct_timeval=yes, emacs_cv_struct_timeval=no))
1217 HAVE_TIMEVAL=$emacs_cv_struct_timeval
1218 if test $emacs_cv_struct_timeval = yes; then
1219   AC_DEFINE(HAVE_TIMEVAL, 1, [Define to 1 if `struct timeval' is declared by <sys/time.h>.])
1220 fi
1221
1222 AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1223 AC_TRY_COMPILE([#include <math.h>],
1224 [static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;],
1225   emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1226 HAVE_EXCEPTION=$emacs_cv_struct_exception
1227 if test $emacs_cv_struct_exception != yes; then
1228   AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])
1229 fi
1230
1231 AC_CHECK_HEADERS(sys/socket.h)
1232 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1233 #if HAVE_SYS_SOCKET_H
1234 #include <sys/socket.h>
1235 #endif])
1236
1237 dnl checks for structure members
1238 AC_STRUCT_TM
1239 AC_STRUCT_TIMEZONE
1240 AC_CHECK_MEMBER(struct tm.tm_gmtoff,
1241                 [AC_DEFINE(HAVE_TM_GMTOFF, 1,
1242                            [Define to 1 if `tm_gmtoff' is member of `struct tm'.])],,
1243                 [#include <time.h>])
1244 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1245                   struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1246                   struct ifreq.ifr_addr], , ,
1247                  [AC_INCLUDES_DEFAULT
1248 #if HAVE_SYS_SOCKET_H
1249 #include <sys/socket.h>
1250 #endif
1251 #if HAVE_NET_IF_H
1252 #include <net/if.h>
1253 #endif])
1254
1255 dnl checks for compiler characteristics
1256
1257 dnl Testing __STDC__ to determine prototype support isn't good enough.
1258 dnl DEC C, for instance, doesn't define it with default options, and
1259 dnl is used on 64-bit systems (OSF Alphas).  Similarly for volatile
1260 dnl and void *.
1261 AC_C_PROTOTYPES
1262 AC_C_VOLATILE
1263 AC_C_CONST
1264 dnl This isn't useful because we can't turn on use of `inline' unless
1265 dnl the compiler groks `extern inline'.
1266 dnl AC_C_INLINE
1267 AC_CACHE_CHECK([for void * support], emacs_cv_void_star,
1268   [AC_TRY_COMPILE(, [void * foo;],
1269                    emacs_cv_void_star=yes, emacs_cv_void_star=no)])
1270 if test $emacs_cv_void_star = yes; then
1271   AC_DEFINE(POINTER_TYPE, void)
1272 else
1273   AC_DEFINE(POINTER_TYPE, char)
1274 fi
1275 AH_TEMPLATE(POINTER_TYPE,
1276             [Define as `void' if your compiler accepts `void *'; otherwise
1277              define as `char'.])dnl
1278
1279
1280
1281 dnl This could be used for targets which can have both byte sexes.
1282 dnl We could presumably replace the hardwired WORDS_BIG_ENDIAN generally.
1283 dnl AC_C_BIGENDIAN
1284
1285 dnl check for Make feature
1286 AC_PROG_MAKE_SET
1287
1288 dnl check for GNU Make if we have GCC and autodepend is on.
1289 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1290    AC_MSG_CHECKING([whether we are using GNU Make])
1291    HAVE_GNU_MAKE=no
1292    testval=`make --version 2>/dev/null | grep 'GNU Make'`
1293    if test "x$testval" != x; then
1294       HAVE_GNU_MAKE=yes
1295    else
1296       ac_enable_autodepend=no
1297    fi
1298    AC_MSG_RESULT([$HAVE_GNU_MAKE])
1299    if test $HAVE_GNU_MAKE = yes; then
1300       AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1301       SAVE_CFLAGS="$CFLAGS"
1302       CFLAGS="$CFLAGS -MMD -MF deps.d"
1303       AC_TRY_COMPILE([], [], , ac_enable_autodepend=no)
1304       CFLAGS="$SAVE_CFLAGS"
1305       test -f deps.d || ac_enable_autodepend=no
1306       rm -rf deps.d
1307       AC_MSG_RESULT([$ac_enable_autodepend])
1308    fi
1309    if test $ac_enable_autodepend = yes; then
1310       AC_DEFINE(AUTO_DEPEND, 1, [Generate dependencies with gcc.])
1311    fi
1312 fi
1313
1314 dnl checks for operating system services
1315 AC_SYS_LONG_FILE_NAMES
1316
1317 #### Choose a window system.
1318
1319 AC_PATH_X
1320 if test "$no_x" = yes; then
1321   window_system=none
1322 else
1323   window_system=x11
1324 fi
1325
1326 ## Workaround for bug in autoconf <= 2.62.
1327 ## http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01551.html
1328 ## No need to do anything special for these standard directories.
1329 ## This is an experiment, take it out if it causes problems.
1330 if test -n "${x_libraries}" && test x"${x_libraries}" != xNONE; then
1331
1332    x_libraries=`echo :${x_libraries}: | sed -e 's|:/usr/lib64:|:|g' -e 's|:/lib64:|:|g' -e 's|^:||' -e 's|:$||'`
1333
1334 fi
1335
1336 if test "${x_libraries}" != NONE; then
1337   if test -n "${x_libraries}"; then
1338     LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1339     LD_SWITCH_X_SITE_AUX=-R`echo ${x_libraries} | sed -e "s/:/ -R/g"`
1340   fi
1341   x_default_search_path=""
1342   x_search_path=${x_libraries}
1343   if test -z "${x_search_path}"; then
1344     x_search_path=/usr/lib
1345   fi
1346   for x_library in `echo ${x_search_path}: | \
1347                     sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1348     x_search_path="\
1349 ${x_library}/X11/%L/%T/%N%C%S:\
1350 ${x_library}/X11/%l/%T/%N%C%S:\
1351 ${x_library}/X11/%T/%N%C%S:\
1352 ${x_library}/X11/%L/%T/%N%S:\
1353 ${x_library}/X11/%l/%T/%N%S:\
1354 ${x_library}/X11/%T/%N%S"
1355     if test x"${x_default_search_path}" = x; then
1356       x_default_search_path=${x_search_path}
1357     else
1358       x_default_search_path="${x_search_path}:${x_default_search_path}"
1359     fi
1360   done
1361 fi
1362 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1363   C_SWITCH_X_SITE=-I`echo ${x_includes} | sed -e "s/:/ -I/g"`
1364 fi
1365
1366 if test x"${x_includes}" = x; then
1367   bitmapdir=/usr/include/X11/bitmaps
1368 else
1369   # accumulate include directories that have X11 bitmap subdirectories
1370   bmd_acc="dummyval"
1371   for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1372     if test -d "${bmd}/X11/bitmaps"; then
1373       bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1374     fi
1375     if test -d "${bmd}/bitmaps"; then
1376       bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1377     fi
1378   done
1379   if test ${bmd_acc} != "dummyval"; then
1380     bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1381   fi
1382 fi
1383
1384 HAVE_NS=no
1385 NS_IMPL_COCOA=no
1386 NS_IMPL_GNUSTEP=no
1387 tmp_CPPFLAGS="$CPPFLAGS"
1388 tmp_CFLAGS="$CFLAGS"
1389 CPPFLAGS="$CPPFLAGS -x objective-c"
1390 CFLAGS="$CFLAGS -x objective-c"
1391 if test "${with_ns}" != no; then
1392   if test "${opsys}" = darwin; then
1393      NS_IMPL_COCOA=yes
1394      ns_appdir=`pwd`/nextstep/Emacs.app
1395      ns_appbindir=`pwd`/nextstep/Emacs.app/Contents/MacOS
1396      ns_appresdir=`pwd`/nextstep/Emacs.app/Contents/Resources
1397      ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base
1398   elif test -f $GNUSTEP_CONFIG_FILE; then
1399      NS_IMPL_GNUSTEP=yes
1400      ns_appdir=`pwd`/nextstep/Emacs.app
1401      ns_appbindir=`pwd`/nextstep/Emacs.app
1402      ns_appresdir=`pwd`/nextstep/Emacs.app/Resources
1403      ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base
1404      dnl FIXME sourcing this 3 times in subshells seems inefficient.
1405      GNUSTEP_MAKEFILES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_MAKEFILES)"
1406      GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1407      GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1408      CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS}"
1409      CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS}"
1410      REAL_CFLAGS="$REAL_CFLAGS -I${GNUSTEP_SYSTEM_HEADERS}"
1411      LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES}"
1412   fi
1413   AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1414                   [AC_MSG_ERROR([`--with-ns' was specified, but the include
1415   files are missing or cannot be compiled.])])
1416   NS_HAVE_NSINTEGER=yes
1417   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1418                                      [NSInteger i;])],
1419                     ns_have_nsinteger=yes,
1420                     ns_have_nsinteger=no)
1421   if test $ns_have_nsinteger = no; then
1422     NS_HAVE_NSINTEGER=no
1423   fi
1424 fi
1425
1426 NS_OBJ=
1427 NS_SUPPORT=
1428 if test "${HAVE_NS}" = yes; then
1429   window_system=nextstep
1430   with_xft=no
1431   # set up packaging dirs
1432   exec_prefix=${ns_appbindir}
1433   libexecdir=${ns_appbindir}/libexec
1434   if test "${EN_NS_SELF_CONTAINED}" = yes; then
1435      prefix=${ns_appresdir}
1436   fi
1437   NS_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o fontset.o fringe.o image.o"
1438   NS_SUPPORT="\${lispsource}emacs-lisp/easymenu.elc \${lispsource}term/ns-win.elc"
1439 fi
1440 CFLAGS="$tmp_CFLAGS"
1441 CPPFLAGS="$tmp_CPPFLAGS"
1442 AC_SUBST(NS_OBJ)
1443 AC_SUBST(NS_SUPPORT)
1444
1445 case "${window_system}" in
1446   x11 )
1447     HAVE_X_WINDOWS=yes
1448     HAVE_X11=yes
1449     case "${with_x_toolkit}" in
1450       athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1451       motif ) USE_X_TOOLKIT=MOTIF ;;
1452       gtk ) with_gtk=yes
1453 dnl Dont set this for GTK.  A lot of tests below assumes Xt when
1454 dnl USE_X_TOOLKIT is set.
1455             USE_X_TOOLKIT=none ;;
1456       no ) USE_X_TOOLKIT=none ;;
1457 dnl If user did not say whether to use a toolkit, make this decision later:
1458 dnl use the toolkit if we have gtk, or X11R5 or newer.
1459       * ) USE_X_TOOLKIT=maybe ;;
1460     esac
1461   ;;
1462   nextstep | none )
1463     HAVE_X_WINDOWS=no
1464     HAVE_X11=no
1465     USE_X_TOOLKIT=none
1466   ;;
1467 esac
1468
1469 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1470    AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1471    if test "$HAVE_XSERVER" = true ||
1472       test -n "$DISPLAY" ||
1473       test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1474         AC_MSG_ERROR([You seem to be running X, but no X development libraries
1475 were found.  You should install the relevant development files for X
1476 and for the toolkit you want, such as Gtk+, Lesstif or Motif.  Also make
1477 sure you have development files for image handling, i.e.
1478 tiff, gif, jpeg, png and xpm.
1479 If you are sure you want Emacs compiled without X window support, pass
1480   --without-x
1481 to configure.])
1482    fi
1483 fi
1484
1485 ### If we're using X11, we should use the X menu package.
1486 HAVE_MENUS=no
1487 case ${HAVE_X11} in
1488   yes ) HAVE_MENUS=yes ;;
1489 esac
1490
1491 # Do the opsystem or machine files prohibit the use of the GNU malloc?
1492 # Assume not, until told otherwise.
1493 GNU_MALLOC=yes
1494 doug_lea_malloc=yes
1495 AC_CHECK_FUNC(malloc_get_state, ,doug_lea_malloc=no)
1496 AC_CHECK_FUNC(malloc_set_state, ,doug_lea_malloc=no)
1497 AC_CACHE_CHECK(whether __after_morecore_hook exists,
1498                emacs_cv_var___after_morecore_hook,
1499 [AC_TRY_LINK([extern void (* __after_morecore_hook)();],[__after_morecore_hook = 0],
1500   emacs_cv_var___after_morecore_hook=yes,
1501   emacs_cv_var___after_morecore_hook=no)])
1502 if test $emacs_cv_var___after_morecore_hook = no; then
1503   doug_lea_malloc=no
1504 fi
1505 if test "${system_malloc}" = "yes"; then
1506   GNU_MALLOC=no
1507   GNU_MALLOC_reason="
1508     (The GNU allocators don't work with this system configuration.)"
1509 fi
1510 if test "$doug_lea_malloc" = "yes" ; then
1511   if test "$GNU_MALLOC" = yes ; then
1512     GNU_MALLOC_reason="
1513       (Using Doug Lea's new malloc from the GNU C Library.)"
1514   fi
1515   AC_DEFINE(DOUG_LEA_MALLOC, 1,
1516             [Define to 1 if you are using the GNU C Library.])
1517 fi
1518
1519 if test x"${REL_ALLOC}" = x; then
1520   REL_ALLOC=${GNU_MALLOC}
1521 fi
1522
1523 dnl For now, need to use an explicit `#define USE_MMAP_FOR_BUFFERS 1'
1524 dnl the system configuration file (s/*.h) to turn the use of mmap
1525 dnl in the relocating allocator on.
1526
1527 AC_FUNC_MMAP
1528 if test $use_mmap_for_buffers = yes; then
1529   REL_ALLOC=no
1530 fi
1531
1532 LIBS="$libsrc_libs $LIBS"
1533
1534 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1535 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1536 AC_CHECK_LIB(dnet, dnet_ntoa)
1537 dnl This causes -lresolv to get used in subsequent tests,
1538 dnl which causes failures on some systems such as HPUX 9.
1539 dnl AC_CHECK_LIB(resolv, gethostbyname)
1540
1541 dnl FIXME replace main with a function we actually want from this library.
1542 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1543
1544 AC_CHECK_LIB(pthreads, cma_open)
1545
1546 dnl Check for need for bigtoc support on IBM AIX
1547
1548 case ${host_os} in
1549 aix*)
1550   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1551     case $GCC in
1552     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1553     *) gdb_cv_bigtoc=-bbigtoc ;;
1554     esac
1555
1556     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1557     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1558   ])
1559   ;;
1560 esac
1561
1562 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1563 # used for the tests that follow.  We set them back to REAL_CFLAGS and
1564 # REAL_CPPFLAGS later on.
1565
1566 REAL_CPPFLAGS="$CPPFLAGS"
1567
1568 if test "${HAVE_X11}" = "yes"; then
1569   DEFS="$C_SWITCH_X_SITE $DEFS"
1570   LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1571   LIBS="$LIBX $LIBS"
1572   CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1573   CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1574
1575   # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1576   # This is handled by LD_SWITCH_X_SITE_AUX during the real build,
1577   # but it's more convenient here to set LD_RUN_PATH
1578   # since this also works on hosts that don't understand LD_SWITCH_X_SITE_AUX.
1579   if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1580     LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1581     export LD_RUN_PATH
1582   fi
1583
1584   if test "${opsys}" = "gnu-linux"; then
1585     AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1586     AC_TRY_LINK([],
1587      [XOpenDisplay ("foo");],
1588      [xlinux_first_failure=no],
1589      [xlinux_first_failure=yes])
1590     if test "${xlinux_first_failure}" = "yes"; then
1591       OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1592       OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1593       OLD_CPPFLAGS="$CPPFLAGS"
1594       OLD_LIBS="$LIBS"
1595       LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1596       C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1597       CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1598       LIBS="$LIBS -b i486-linuxaout"
1599       AC_TRY_LINK([],
1600        [XOpenDisplay ("foo");],
1601        [xlinux_second_failure=no],
1602        [xlinux_second_failure=yes])
1603       if test "${xlinux_second_failure}" = "yes"; then
1604         # If we get the same failure with -b, there is no use adding -b.
1605         # So take it out.  This plays safe.
1606         LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1607         C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1608         CPPFLAGS="$OLD_CPPFLAGS"
1609         LIBS="$OLD_LIBS"
1610         AC_MSG_RESULT(no)
1611       else
1612         AC_MSG_RESULT(yes)
1613       fi
1614     else
1615       AC_MSG_RESULT(no)
1616     fi
1617   fi
1618
1619   # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1620   # header files included from there.
1621   AC_MSG_CHECKING(for Xkb)
1622   AC_TRY_LINK([#include <X11/Xlib.h>
1623 #include <X11/XKBlib.h>],
1624         [XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);],
1625         emacs_xkb=yes, emacs_xkb=no)
1626   AC_MSG_RESULT($emacs_xkb)
1627   if test $emacs_xkb = yes; then
1628     AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1629   fi
1630
1631   AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1632 XScreenNumberOfScreen XSetWMProtocols)
1633 fi
1634
1635 if test "${window_system}" = "x11"; then
1636   AC_MSG_CHECKING(X11 version 6)
1637   AC_CACHE_VAL(emacs_cv_x11_version_6,
1638   [AC_TRY_LINK([#include <X11/Xlib.h>],
1639 [#if XlibSpecificationRelease < 6
1640 fail;
1641 #endif
1642 ], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1643   if test $emacs_cv_x11_version_6 = yes; then
1644     AC_MSG_RESULT(6 or newer)
1645     AC_DEFINE(HAVE_X11R6, 1,
1646               [Define to 1 if you have the X11R6 or newer version of Xlib.])
1647   else
1648     AC_MSG_RESULT(before 6)
1649   fi
1650 fi
1651
1652
1653 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1654 HAVE_RSVG=no
1655 if test "${HAVE_X11}" = "yes" || test "${NS_IMPL_GNUSTEP}" = "yes"; then
1656   if test "${with_rsvg}" != "no"; then
1657     RSVG_REQUIRED=2.11.0
1658     RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1659
1660     PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, :, :)
1661     AC_SUBST(RSVG_CFLAGS)
1662     AC_SUBST(RSVG_LIBS)
1663
1664     if test ".${RSVG_CFLAGS}" != "."; then
1665       HAVE_RSVG=yes
1666       AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1667       CFLAGS="$CFLAGS $RSVG_CFLAGS"
1668       LIBS="$RSVG_LIBS $LIBS"
1669     fi
1670   fi
1671 fi
1672
1673
1674 HAVE_GTK=no
1675 if test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1676   GLIB_REQUIRED=2.6
1677   GTK_REQUIRED=2.6
1678   GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1679
1680   dnl Checks for libraries.
1681   PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1682   if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1683      AC_MSG_ERROR($GTK_PKG_ERRORS)
1684   fi
1685 fi
1686
1687
1688 GTK_OBJ=
1689 if test x"$pkg_check_gtk" = xyes; then
1690
1691   AC_SUBST(GTK_CFLAGS)
1692   AC_SUBST(GTK_LIBS)
1693   C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1694   CFLAGS="$CFLAGS $GTK_CFLAGS"
1695   LIBS="$GTK_LIBS $LIBS"
1696   dnl Try to compile a simple GTK program.
1697   GTK_COMPILES=no
1698   AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1699   if test "${GTK_COMPILES}" != "yes"; then
1700     if test "$USE_X_TOOLKIT" != "maybe"; then
1701       AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log.  Maybe some x11-devel files missing?]);
1702     fi
1703   else
1704     HAVE_GTK=yes
1705     AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1706     GTK_OBJ=gtkutil.o
1707     USE_X_TOOLKIT=none
1708     if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1709       :
1710     else
1711       AC_MSG_WARN([[Your version of Gtk+ will have problems with
1712        closing open displays.  This is no problem if you just use
1713        one display, but if you use more than one and close one of them
1714        Emacs may crash.]])
1715       sleep 3
1716     fi
1717   fi
1718
1719 fi
1720 AC_SUBST(GTK_OBJ)
1721
1722
1723 if test "${HAVE_GTK}" = "yes"; then
1724
1725   dnl  GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1726   dnl  a lot if #ifdef:s, say we have toolkit scrollbars.
1727   if test "$with_toolkit_scroll_bars" != no; then
1728     with_toolkit_scroll_bars=yes
1729   fi
1730
1731   dnl  Check if we can use multiple displays with this GTK version.
1732   dnl  If gdk_display_open exists, assume all others are there also.
1733   HAVE_GTK_MULTIDISPLAY=no
1734   AC_CHECK_FUNCS(gdk_display_open, HAVE_GTK_MULTIDISPLAY=yes)
1735   if test "${HAVE_GTK_MULTIDISPLAY}" = "yes"; then
1736     AC_DEFINE(HAVE_GTK_MULTIDISPLAY, 1,
1737               [Define to 1 if GTK can handle more than one display.])
1738   fi
1739
1740   dnl  Check if we have the old file selection dialog declared and
1741   dnl  in the link library.  In 2.x it may be in the library,
1742   dnl  but not declared if deprecated featured has been selected out.
1743   dnl  AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1744   HAVE_GTK_FILE_SELECTION=no
1745   AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1746                    HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1747 #include <gtk/gtk.h>])
1748   if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1749     AC_CHECK_FUNCS(gtk_file_selection_new, HAVE_GTK_FILE_SELECTION=yes,
1750                    HAVE_GTK_FILE_SELECTION=no)
1751   fi
1752
1753   dnl  Check if we have the new file chooser dialog
1754   HAVE_GTK_FILE_CHOOSER=no
1755   AC_CHECK_DECL(GTK_TYPE_FILE_CHOOSER, HAVE_GTK_FILE_CHOOSER=yes,
1756                 HAVE_GTK_FILE_CHOOSER=no, [AC_INCLUDES_DEFAULT
1757 #include <gtk/gtk.h>])
1758   if test "$HAVE_GTK_FILE_CHOOSER" = yes; then
1759     AC_CHECK_FUNCS(gtk_file_chooser_dialog_new, HAVE_GTK_FILE_CHOOSER=yes,
1760                    HAVE_GTK_FILE_CHOOSER=no)
1761   fi
1762
1763   if test "$HAVE_GTK_FILE_SELECTION" = yes \
1764      && test "$HAVE_GTK_FILE_CHOOSER" = yes;  then
1765     AC_DEFINE(HAVE_GTK_FILE_BOTH, 1,
1766               [Define to 1 if GTK has both file selection and chooser dialog.])
1767   fi
1768
1769   dnl Check if pthreads are available.  Emacs only needs this when using
1770   dnl gtk_file_chooser under Gnome.
1771   if test "$HAVE_GTK_FILE_CHOOSER" = yes; then
1772     HAVE_GTK_AND_PTHREAD=no
1773     AC_CHECK_HEADERS(pthread.h)
1774     if test "$ac_cv_header_pthread_h"; then
1775       AC_CHECK_LIB(pthread, pthread_self, HAVE_GTK_AND_PTHREAD=yes)
1776     fi
1777     if test "$HAVE_GTK_AND_PTHREAD" = yes; then
1778       case "${canonical}" in
1779         *-hpux*) ;;
1780         *) GTK_LIBS="$GTK_LIBS -lpthread" ;;
1781       esac
1782       AC_DEFINE(HAVE_GTK_AND_PTHREAD, 1,
1783                [Define to 1 if you have GTK and pthread (-lpthread).])
1784     fi
1785   fi
1786 fi
1787
1788 dnl D-Bus has been tested under GNU/Linux only.  Must be adapted for
1789 dnl other platforms.  Support for higher D-Bus versions than 1.0 is
1790 dnl also not configured.
1791 HAVE_DBUS=no
1792 DBUS_OBJ=
1793 if test "${with_dbus}" = "yes"; then
1794    PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
1795    if test "$HAVE_DBUS" = yes; then
1796      LIBS="$LIBS $DBUS_LIBS"
1797      AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
1798      AC_CHECK_FUNCS([dbus_watch_get_unix_fd])
1799      DBUS_OBJ=dbusbind.o
1800    fi
1801 fi
1802 AC_SUBST(DBUS_OBJ)
1803
1804 dnl GConf has been tested under GNU/Linux only.
1805 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
1806 HAVE_GCONF=no
1807 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
1808    PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
1809    if test "$HAVE_GCONF" = yes; then
1810       AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
1811    fi
1812 fi
1813
1814 dnl SELinux is available for GNU/Linux only.
1815 HAVE_LIBSELINUX=no
1816 LIBSELINUX_LIBS=
1817 if test "${with_selinux}" = "yes"; then
1818    AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
1819    if test "$HAVE_LIBSELINUX" = yes; then
1820       AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
1821       LIBSELINUX_LIBS=-lselinux
1822    fi
1823 fi
1824 AC_SUBST(LIBSELINUX_LIBS)
1825
1826 dnl Do not put whitespace before the #include statements below.
1827 dnl Older compilers (eg sunos4 cc) choke on it.
1828 HAVE_XAW3D=no
1829 LUCID_LIBW=
1830 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
1831   if test "$with_xaw3d" != no; then
1832     AC_MSG_CHECKING(for xaw3d)
1833     AC_CACHE_VAL(emacs_cv_xaw3d,
1834     [AC_TRY_LINK([
1835 #include <X11/Intrinsic.h>
1836 #include <X11/Xaw3d/Simple.h>],
1837       [],
1838       emacs_cv_xaw3d=yes,
1839       emacs_cv_xaw3d=no)])
1840   else
1841     emacs_cv_xaw3d=no
1842   fi
1843   if test $emacs_cv_xaw3d = yes; then
1844     AC_MSG_RESULT([yes; using Lucid toolkit])
1845     USE_X_TOOLKIT=LUCID
1846     HAVE_XAW3D=yes
1847     LUCID_LIBW=-lXaw3d
1848     AC_DEFINE(HAVE_XAW3D, 1,
1849               [Define to 1 if you have the Xaw3d library (-lXaw3d).])
1850   else
1851     AC_MSG_RESULT(no)
1852     AC_MSG_CHECKING(for libXaw)
1853     AC_CACHE_VAL(emacs_cv_xaw,
1854     [AC_TRY_LINK([
1855 #include <X11/Intrinsic.h>
1856 #include <X11/Xaw/Simple.h>],
1857       [],
1858       emacs_cv_xaw=yes,
1859       emacs_cv_xaw=no)])
1860     if test $emacs_cv_xaw = yes; then
1861       AC_MSG_RESULT([yes; using Lucid toolkit])
1862       USE_X_TOOLKIT=LUCID
1863       LUCID_LIBW=-lXaw
1864     elif test x"${USE_X_TOOLKIT}" = xLUCID; then
1865       AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
1866     else
1867       AC_MSG_RESULT([no; do not use toolkit by default])
1868       USE_X_TOOLKIT=none
1869     fi
1870   fi
1871 fi
1872
1873 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
1874
1875 LIBXTR6=
1876 if test "${USE_X_TOOLKIT}" != "none"; then
1877   AC_MSG_CHECKING(X11 toolkit version)
1878   AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
1879   [AC_TRY_LINK([#include <X11/Intrinsic.h>],
1880 [#if XtSpecificationRelease < 6
1881 fail;
1882 #endif
1883 ], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
1884   HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
1885   if test $emacs_cv_x11_toolkit_version_6 = yes; then
1886     AC_MSG_RESULT(6 or newer)
1887     AC_DEFINE(HAVE_X11XTR6, 1,
1888               [Define to 1 if you have the X11R6 or newer version of Xt.])
1889     LIBXTR6="-lSM -lICE"
1890     case "$opsys" in
1891       ## Use libw.a along with X11R6 Xt.
1892       unixware) LIBXTR6="$LIBXTR6 -lw" ;;
1893     esac
1894   else
1895     AC_MSG_RESULT(before 6)
1896   fi
1897
1898 dnl If using toolkit, check whether libXmu.a exists.
1899 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
1900   OLDLIBS="$LIBS"
1901   if test x$HAVE_X11XTR6 = xyes; then
1902     LIBS="-lXt -lSM -lICE $LIBS"
1903   else
1904     LIBS="-lXt $LIBS"
1905   fi
1906   AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
1907   test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
1908 fi
1909 AC_SUBST(LIBXTR6)
1910
1911 dnl FIXME the logic here seems weird, but this is what cpp was doing.
1912 dnl Why not just test for libxmu in the normal way?
1913 LIBXMU=-lXmu
1914 case "$machine" in
1915   ## These machines don't supply Xmu.
1916   hpux* | aix4-2 )
1917     test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
1918     ;;
1919 esac
1920 AC_SUBST(LIBXMU)
1921
1922 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
1923 if test "${HAVE_X11}" = "yes"; then
1924   if test "${USE_X_TOOLKIT}" != "none"; then
1925     AC_CHECK_LIB(Xext, XShapeQueryExtension)
1926   fi
1927 fi
1928
1929 LIBXP=
1930 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
1931   AC_CACHE_CHECK(for Motif version 2.1, emacs_cv_motif_version_2_1,
1932   [AC_TRY_COMPILE([#include <Xm/Xm.h>],
1933     [#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
1934 int x = 5;
1935 #else
1936 Motif version prior to 2.1.
1937 #endif],
1938     emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
1939   if test $emacs_cv_motif_version_2_1 = yes; then
1940     AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
1941   else
1942     AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
1943     # We put this in CFLAGS temporarily to precede other -I options
1944     # that might be in CFLAGS temporarily.
1945     # We put this in CPPFLAGS where it precedes the other -I options.
1946     OLD_CPPFLAGS=$CPPFLAGS
1947     OLD_CFLAGS=$CFLAGS
1948     CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
1949     CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
1950     [AC_TRY_COMPILE([#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>],
1951       [int x = 5;],
1952       emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
1953     if test $emacs_cv_lesstif = yes; then
1954       # Make sure this -I option remains in CPPFLAGS after it is set
1955       # back to REAL_CPPFLAGS.
1956       # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
1957       # have those other -I options anyway.  Ultimately, having this
1958       # directory ultimately in CPPFLAGS will be enough.
1959       REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
1960       LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
1961     else
1962       CFLAGS=$OLD_CFLAGS
1963       CPPFLAGS=$OLD_CPPFLAGS
1964     fi
1965   fi
1966 fi
1967
1968 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
1969 dnl using Motif or Xaw3d is available, and unless
1970 dnl --with-toolkit-scroll-bars=no was specified.
1971
1972 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
1973             [Define to 1 if we should use toolkit scroll bars.])dnl
1974 USE_TOOLKIT_SCROLL_BARS=no
1975 if test "${with_toolkit_scroll_bars}" != "no"; then
1976   if test "${USE_X_TOOLKIT}" != "none"; then
1977     if test "${USE_X_TOOLKIT}" = "MOTIF"; then
1978       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
1979       HAVE_XAW3D=no
1980       USE_TOOLKIT_SCROLL_BARS=yes
1981     elif test "${HAVE_XAW3D}" = "yes"; then
1982       AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
1983       USE_TOOLKIT_SCROLL_BARS=yes
1984     fi
1985   elif test "${HAVE_GTK}" = "yes"; then
1986     AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
1987     USE_TOOLKIT_SCROLL_BARS=yes
1988   elif test "${HAVE_NS}" = "yes"; then
1989     AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
1990     USE_TOOLKIT_SCROLL_BARS=yes
1991   fi
1992 fi
1993
1994 dnl See if XIM is available.
1995 AC_TRY_COMPILE([
1996           #include <X11/Xlib.h>
1997           #include <X11/Xresource.h>],
1998          [XIMProc  callback;],
1999          [HAVE_XIM=yes
2000          AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2001          HAVE_XIM=no)
2002
2003 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2004
2005 if test "${with_xim}" != "no"; then
2006   AC_DEFINE(USE_XIM, 1,
2007             [Define to 1 if we should use XIM, if it is available.])
2008 fi
2009
2010
2011 if test "${HAVE_XIM}" != "no"; then
2012   late_CFLAGS=$CFLAGS
2013   if test "$GCC" = yes; then
2014     CFLAGS="$CFLAGS --pedantic-errors"
2015   fi
2016   AC_TRY_COMPILE([
2017 #include <X11/Xlib.h>
2018 #include <X11/Xresource.h>],
2019 [Display *display;
2020 XrmDatabase db;
2021 char *res_name;
2022 char *res_class;
2023 XIMProc  callback;
2024 XPointer *client_data;
2025 #ifndef __GNUC__
2026 /* If we're not using GCC, it's probably not XFree86, and this is
2027    probably right, but we can't use something like --pedantic-errors.  */
2028 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2029                                            char*, XIMProc, XPointer*);
2030 #endif
2031 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2032    client_data);],
2033     [emacs_cv_arg6_star=yes])
2034   AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2035          [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2036 either XPointer or XPointer*.])dnl
2037   if test "$emacs_cv_arg6_star" = yes; then
2038     AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2039   else
2040     AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2041   fi
2042   CFLAGS=$late_CFLAGS
2043 fi
2044
2045 ### Start of font-backend (under any platform) section.
2046 # (nothing here yet -- this is a placeholder)
2047 ### End of font-backend (under any platform) section.
2048
2049 ### Start of font-backend (under X11) section.
2050 if test "${HAVE_X11}" = "yes"; then
2051    PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2052
2053    ## Use -lXft if available, unless `--with-xft=no'.
2054    HAVE_XFT=maybe
2055     if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2056       with_xft="no";
2057     fi
2058     if test "x${with_xft}" != "xno"; then
2059
2060       PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2061       ## Because xftfont.c uses XRenderQueryExtension, we also
2062       ## need to link to -lXrender.
2063       HAVE_XRENDER=no
2064       AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2065       if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2066         OLD_CPPFLAGS="$CPPFLAGS"
2067         OLD_CFLAGS="$CFLAGS"
2068         OLD_LIBS="$LIBS"
2069         CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2070         CFLAGS="$CFLAGS $XFT_CFLAGS"
2071         XFT_LIBS="-lXrender $XFT_LIBS"
2072         LIBS="$XFT_LIBS $LIBS"
2073         AC_CHECK_HEADER(X11/Xft/Xft.h,
2074           AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2075
2076         if test "${HAVE_XFT}" = "yes"; then
2077           AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2078             AC_SUBST(XFT_LIBS)
2079           C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2080         else
2081           CPPFLAGS="$OLD_CPPFLAGS"
2082           CFLAGS="$OLD_CFLAGS"
2083           LIBS="$OLD_LIBS"
2084         fi                        # "${HAVE_XFT}" = "yes"
2085       fi                          # "$HAVE_XFT" != no
2086     fi                            # "x${with_xft}" != "xno"
2087
2088     dnl For the "Does Emacs use" message at the end.
2089     if test "$HAVE_XFT" != "yes"; then
2090        HAVE_XFT=no
2091     fi
2092
2093
2094     HAVE_FREETYPE=no
2095     ## We used to allow building with FreeType and without Xft.
2096     ## However, the ftx font backend driver is not in good shape.
2097     if test "${HAVE_XFT}" = "yes"; then
2098       dnl As we use Xft, we anyway use freetype.
2099       dnl There's no need for additional CFLAGS and LIBS.
2100       HAVE_FREETYPE=yes
2101       FONTCONFIG_CFLAGS=
2102       FONTCONFIG_LIBS=
2103     fi
2104
2105     HAVE_LIBOTF=no
2106     if test "${HAVE_FREETYPE}" = "yes"; then
2107       AC_DEFINE(HAVE_FREETYPE, 1,
2108                 [Define to 1 if using the freetype and fontconfig libraries.])
2109       if test "${with_libotf}" != "no"; then
2110         PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2111                           HAVE_LIBOTF=no)
2112         if test "$HAVE_LIBOTF" = "yes"; then
2113           AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2114           AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2115                        HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2116                        HAVE_OTF_GET_VARIATION_GLYPHS=no)
2117           if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2118             AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2119                       [Define to 1 if libotf has OTF_get_variation_glyphs.])
2120           fi
2121         fi
2122       fi
2123     dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2124     dnl Does the new font backend require it, or can it work without it?
2125     fi
2126
2127     HAVE_M17N_FLT=no
2128     if test "${HAVE_LIBOTF}" = yes; then
2129       if test "${with_m17n_flt}" != "no"; then
2130         PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2131         if test "$HAVE_M17N_FLT" = "yes"; then
2132           AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2133         fi
2134       fi
2135     fi
2136 else
2137     HAVE_XFT=no
2138     HAVE_FREETYPE=no
2139     HAVE_LIBOTF=no
2140     HAVE_M17N_FLT=no
2141 fi
2142
2143 FONT_OBJ=xfont.o
2144 if test "$HAVE_XFT" = "yes"; then
2145   FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
2146 elif test "$HAVE_FREETYPE" = "yes"; then
2147   FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
2148 fi
2149 AC_SUBST(FONT_OBJ)
2150
2151 ### End of font-backend (under X11) section.
2152
2153 AC_SUBST(FREETYPE_CFLAGS)
2154 AC_SUBST(FREETYPE_LIBS)
2155 AC_SUBST(FONTCONFIG_CFLAGS)
2156 AC_SUBST(FONTCONFIG_LIBS)
2157 AC_SUBST(LIBOTF_CFLAGS)
2158 AC_SUBST(LIBOTF_LIBS)
2159 AC_SUBST(M17N_FLT_CFLAGS)
2160 AC_SUBST(M17N_FLT_LIBS)
2161
2162 ### Use -lXpm if available, unless `--with-xpm=no'.
2163 HAVE_XPM=no
2164 LIBXPM=
2165 if test "${HAVE_X11}" = "yes"; then
2166   if test "${with_xpm}" != "no"; then
2167     AC_CHECK_HEADER(X11/xpm.h,
2168       [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2169     if test "${HAVE_XPM}" = "yes"; then
2170       AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2171       AC_EGREP_CPP(no_return_alloc_pixels,
2172       [#include "X11/xpm.h"
2173 #ifndef XpmReturnAllocPixels
2174 no_return_alloc_pixels
2175 #endif
2176       ], HAVE_XPM=no, HAVE_XPM=yes)
2177
2178       if test "${HAVE_XPM}" = "yes"; then
2179         AC_MSG_RESULT(yes)
2180       else
2181         AC_MSG_RESULT(no)
2182       fi
2183     fi
2184   fi
2185
2186   if test "${HAVE_XPM}" = "yes"; then
2187     AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm libary (-lXpm).])
2188     LIBXPM=-lXpm
2189   fi
2190 fi
2191 AC_SUBST(LIBXPM)
2192
2193 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2194 HAVE_JPEG=no
2195 LIBJPEG=
2196 if test "${HAVE_X11}" = "yes"; then
2197   if test "${with_jpeg}" != "no"; then
2198     dnl Checking for jpeglib.h can lose because of a redefinition of
2199     dnl  HAVE_STDLIB_H.
2200     AC_CHECK_HEADER(jerror.h,
2201       [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2202   fi
2203
2204   AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2205   if test "${HAVE_JPEG}" = "yes"; then
2206     AC_DEFINE(HAVE_JPEG)
2207     AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2208         [#include <jpeglib.h>
2209          version=JPEG_LIB_VERSION
2210 ],
2211         [AC_DEFINE(HAVE_JPEG)],
2212         [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2213         HAVE_JPEG=no])
2214   fi
2215   if test "${HAVE_JPEG}" = "yes"; then
2216     LIBJPEG=-ljpeg
2217   fi
2218 fi
2219 AC_SUBST(LIBJPEG)
2220
2221 ### Use -lpng if available, unless `--with-png=no'.
2222 HAVE_PNG=no
2223 LIBPNG=
2224 if test "${HAVE_X11}" = "yes"; then
2225   if test "${with_png}" != "no"; then
2226     # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2227     # in /usr/include/libpng.
2228     AC_CHECK_HEADERS(png.h libpng/png.h)
2229     if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2230       AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2231     fi
2232   fi
2233
2234   if test "${HAVE_PNG}" = "yes"; then
2235     AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2236     LIBPNG="-lpng -lz -lm"
2237   fi
2238 fi
2239 AC_SUBST(LIBPNG)
2240
2241 ### Use -ltiff if available, unless `--with-tiff=no'.
2242 HAVE_TIFF=no
2243 LIBTIFF=
2244 if test "${HAVE_X11}" = "yes"; then
2245   if test "${with_tiff}" != "no"; then
2246     AC_CHECK_HEADER(tiffio.h,
2247       [tifflibs="-lz -lm"
2248       # At least one tiff package requires the jpeg library.
2249       if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2250       AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2251   fi
2252
2253   if test "${HAVE_TIFF}" = "yes"; then
2254     AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2255     dnl FIXME -lz -lm, as per libpng?
2256     LIBTIFF=-ltiff
2257   fi
2258 fi
2259 AC_SUBST(LIBTIFF)
2260
2261 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2262 HAVE_GIF=no
2263 LIBGIF=
2264 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2265   AC_CHECK_HEADER(gif_lib.h,
2266 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2267 # Earlier versions can crash Emacs.
2268     [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2269
2270   if test "$HAVE_GIF" = yes; then
2271     LIBGIF=-lgif
2272   elif test "$HAVE_GIF" = maybe; then
2273 # If gif_lib.h but no libgif, try libungif.
2274     AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2275     test "$HAVE_GIF" = yes && LIBGIF=-lungif
2276   fi
2277
2278   if test "${HAVE_GIF}" = "yes"; then
2279     AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2280   fi
2281 fi
2282 AC_SUBST(LIBGIF)
2283
2284 dnl Check for required libraries.
2285 if test "${HAVE_X11}" = "yes"; then
2286   MISSING=""
2287   WITH_NO=""
2288   test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2289     MISSING="libXpm" && WITH_NO="--with-xpm=no"
2290   test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2291     MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2292   test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2293     MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2294   test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2295     MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2296   test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2297     MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2298
2299   if test "X${MISSING}" != X; then
2300     AC_MSG_ERROR([The following required libraries were not found:
2301     $MISSING
2302 Maybe some development libraries/packages are missing?
2303 If you don't want to link with them give
2304     $WITH_NO
2305 as options to configure])
2306   fi
2307 fi
2308
2309 ### Use -lgpm if available, unless `--with-gpm=no'.
2310 HAVE_GPM=no
2311 LIBGPM=
2312 GPM_MOUSE_SUPPORT=
2313 if test "${with_gpm}" != "no"; then
2314   AC_CHECK_HEADER(gpm.h,
2315     [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2316
2317   if test "${HAVE_GPM}" = "yes"; then
2318     AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2319     LIBGPM=-lgpm
2320     GPM_MOUSE_SUPPORT="\${lispsource}mouse.elc"
2321   fi
2322 fi
2323 AC_SUBST(LIBGPM)
2324 AC_SUBST(GPM_MOUSE_SUPPORT)
2325
2326 dnl Check for malloc/malloc.h on darwin
2327 AC_CHECK_HEADER(malloc/malloc.h, [AC_DEFINE(HAVE_MALLOC_MALLOC_H, 1, [Define to 1 if you have the <malloc/malloc.h> header file.])])
2328
2329 C_SWITCH_X_SYSTEM=
2330 ### Use NeXTstep API to implement GUI.
2331 if test "${HAVE_NS}" = "yes"; then
2332   AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2333   if test "${NS_IMPL_COCOA}" = "yes"; then
2334     AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2335     GNU_OBJC_CFLAGS=
2336   fi
2337   if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2338     AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2339     # See also .m.o rule in Makefile.in */
2340     # FIXME: are all these flags really needed?  Document here why.  */
2341     C_SWITCH_X_SYSTEM="-D_REENTRANT -fPIC -fno-strict-aliasing"
2342     GNU_OBJC_CFLAGS="-fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
2343   fi
2344   if test "${NS_HAVE_NSINTEGER}" = "yes"; then
2345     AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
2346   fi
2347   # We also have mouse menus.
2348   HAVE_MENUS=yes
2349   OTHER_FILES=ns-app
2350 fi
2351
2352
2353 ### Use session management (-lSM -lICE) if available
2354 HAVE_X_SM=no
2355 LIBXSM=
2356 if test "${HAVE_X11}" = "yes"; then
2357   AC_CHECK_HEADER(X11/SM/SMlib.h,
2358     [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2359
2360   if test "${HAVE_X_SM}" = "yes"; then
2361     AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2362     LIBXSM="-lSM -lICE"
2363     case "$LIBS" in
2364       *-lSM*) ;;
2365       *)      LIBS="$LIBXSM $LIBS" ;;
2366     esac
2367   fi
2368 fi
2369 AC_SUBST(LIBXSM)
2370
2371 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2372 AC_CACHE_CHECK(whether netdb declares h_errno,
2373                emacs_cv_netdb_declares_h_errno,
2374 [AC_TRY_LINK([#include <netdb.h>],
2375   [return h_errno;],
2376   emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2377 if test $emacs_cv_netdb_declares_h_errno = yes; then
2378   AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2379 fi
2380
2381 AC_FUNC_ALLOCA
2382
2383 dnl src/alloca.c has been removed.  Could also check if $ALLOCA is set?
2384 dnl FIXME is there an autoconf test that does the right thing, without
2385 dnl needing to call A_M_E afterwards?
2386 if test x"$ac_cv_func_alloca_works" != xyes; then
2387    AC_MSG_ERROR( [a system implementation of alloca is required] )
2388 fi
2389
2390 # fmod, logb, and frexp are found in -lm on most systems.
2391 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
2392 AC_CHECK_LIB(m, sqrt)
2393
2394 # Check for mail-locking functions in a "mail" library.  Probably this should
2395 # have the same check as for liblockfile below.
2396 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2397 if test $have_mail = yes; then
2398   LIBS_MAIL=-lmail
2399   LIBS="$LIBS_MAIL $LIBS"
2400   AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2401 else
2402   LIBS_MAIL=
2403 fi
2404 dnl Debian, at least:
2405 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2406 if test $have_lockfile = yes; then
2407    LIBS_MAIL=-llockfile
2408    LIBS="$LIBS_MAIL $LIBS"
2409    AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2410 else
2411 # If we have the shared liblockfile, assume we must use it for mail
2412 # locking (e.g. Debian).  If we couldn't link against liblockfile
2413 # (no liblockfile.a installed), ensure that we don't need to.
2414   dnl This works for files generally, not just executables.
2415   dnl Should we look elsewhere for it?  Maybe examine /etc/ld.so.conf?
2416   AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2417                 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2418   if test $ac_cv_prog_liblockfile = yes; then
2419     AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2420 This probably means that movemail could lose mail.
2421 There may be a `development' package to install containing liblockfile.])
2422   fi
2423 fi
2424 AC_CHECK_FUNCS(touchlock)
2425 AC_CHECK_HEADERS(maillock.h)
2426 AC_SUBST(LIBS_MAIL)
2427
2428 AC_CHECK_FUNCS(gethostname getdomainname dup2 \
2429 rename closedir mkdir rmdir sysinfo getrusage get_current_dir_name \
2430 random lrand48 bcopy bcmp logb frexp fmod rint cbrt ftime setsid \
2431 strerror fpathconf select mktime euidaccess getpagesize tzset setlocale \
2432 utimes getrlimit setrlimit setpgid getcwd getwd shutdown getaddrinfo \
2433 __fpending mblen mbrlen mbsinit strsignal setitimer ualarm index rindex \
2434 sendto recvfrom getsockopt setsockopt getsockname getpeername \
2435 gai_strerror mkstemp getline getdelim mremap memmove fsync sync bzero \
2436 memset memcmp difftime memcpy mempcpy mblen mbrlen posix_memalign \
2437 cfmakeraw cfsetspeed)
2438
2439 AC_CHECK_HEADERS(sys/un.h)
2440
2441 AC_FUNC_MKTIME
2442 if test "$ac_cv_func_working_mktime" = no; then
2443   AC_DEFINE(BROKEN_MKTIME, 1, [Define to 1 if the mktime function is broken.])
2444 fi
2445
2446 AC_FUNC_GETLOADAVG
2447
2448 AC_FUNC_FSEEKO
2449
2450 # Configure getopt.
2451 m4_include([m4/getopt.m4])
2452 gl_GETOPT_IFELSE([
2453   gl_GETOPT_SUBSTITUTE_HEADER
2454   gl_PREREQ_GETOPT
2455   GETOPTOBJS='getopt.o getopt1.o'
2456 ])
2457 AC_SUBST(GETOPTOBJS)
2458
2459 AC_FUNC_GETPGRP
2460
2461 AC_FUNC_STRFTIME
2462
2463 # UNIX98 PTYs.
2464 AC_CHECK_FUNCS(grantpt)
2465
2466 # PTY-related GNU extensions.
2467 AC_CHECK_FUNCS(getpt)
2468
2469 # Check this now, so that we will NOT find the above functions in ncurses.
2470 # That is because we have not set up to link ncurses in lib-src.
2471 # It's better to believe a function is not available
2472 # than to expect to find it in ncurses.
2473 # Also we need tputs and frieds to be able to build at all.
2474 have_tputs_et_al=true
2475 AC_SEARCH_LIBS(tputs, [ncurses terminfo termcap], , have_tputs_et_al=false)
2476 if test "$have_tputs_et_al" != true; then
2477   AC_MSG_ERROR([I couldn't find termcap functions (tputs and friends).
2478 Maybe some development libraries/packages are missing?  Try installing
2479 libncurses-dev(el), libterminfo-dev(el) or similar.])
2480 fi
2481 # Must define this when any termcap library is found.
2482 AC_DEFINE(HAVE_LIBNCURSES, 1,
2483           [Define to 1 if you have the `ncurses' library (-lncurses).])
2484
2485 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2486
2487 resolv=no
2488 AC_TRY_LINK([#include <netinet/in.h>
2489 #include <arpa/nameser.h>
2490 #include <resolv.h>],
2491     [return res_init();],
2492     have_res_init=yes, have_res_init=no)
2493 if test "$have_res_init" = no; then
2494   OLIBS="$LIBS"
2495   LIBS="$LIBS -lresolv"
2496   AC_MSG_CHECKING(for res_init with -lresolv)
2497   AC_TRY_LINK([#include <netinet/in.h>
2498 #include <arpa/nameser.h>
2499 #include <resolv.h>],
2500     [return res_init();],
2501     have_res_init=yes, have_res_init=no)
2502   AC_MSG_RESULT($have_res_init)
2503   if test "$have_res_init" = yes ; then
2504     resolv=yes
2505   fi
2506   LIBS="$OLIBS"
2507 fi
2508
2509 if test "$have_res_init" = yes; then
2510   AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2511 fi
2512
2513 # Do we need the Hesiod library to provide the support routines?
2514 LIBHESIOD=
2515 if test "$with_hesiod" != no ; then
2516   # Don't set $LIBS here -- see comments above.  FIXME which comments?
2517   AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2518      [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2519                   [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2520   if test "$resolv" = yes ; then
2521     RESOLVLIB=-lresolv
2522   else
2523     RESOLVLIB=
2524   fi
2525   AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2526         hesiod=yes, :, $RESOLVLIB)])
2527
2528   if test x"$hesiod" = xyes; then
2529     AC_DEFINE(HAVE_LIBHESIOD, 1,
2530               [Define to 1 if you have the hesiod library (-lhesiod).])
2531     LIBHESIOD=-lhesiod
2532   fi
2533 fi
2534 AC_SUBST(LIBHESIOD)
2535
2536 # Do we need libresolv (due to res_init or Hesiod)?
2537 if test "$resolv" = yes ; then
2538   AC_DEFINE(HAVE_LIBRESOLV, 1,
2539             [Define to 1 if you have the resolv library (-lresolv).])
2540   LIBRESOLV=-lresolv
2541 else
2542   LIBRESOLV=
2543 fi
2544 AC_SUBST(LIBRESOLV)
2545
2546 # These tell us which Kerberos-related libraries to use.
2547 COM_ERRLIB=
2548 CRYPTOLIB=
2549 KRB5LIB=
2550 DESLIB=
2551 KRB4LIB=
2552
2553 if test "${with_kerberos}" != no; then
2554   AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
2555   if test $have_com_err = yes; then
2556     COM_ERRLIB=-lcom_err
2557     LIBS="$COM_ERRLIB $LIBS"
2558     AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
2559   fi
2560   AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
2561   if test $have_crypto = yes; then
2562     CRYPTOLIB=-lcrypto
2563     LIBS="$CRYPTOLIB $LIBS"
2564     AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
2565   fi
2566   AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
2567   if test $have_k5crypto = yes; then
2568     CRYPTOLIB=-lk5crypto
2569     LIBS="$CRYPTOLIB $LIBS"
2570     AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
2571   fi
2572   AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
2573   if test $have_krb5=yes; then
2574     KRB5LIB=-lkrb5
2575     LIBS="$KRB5LIB $LIBS"
2576     AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
2577   fi
2578   dnl FIXME Simplify.  Does not match 22 logic, thanks to default_off?
2579   if test "${with_kerberos5}" = no; then
2580     AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
2581     if test $have_des425 = yes; then
2582       DESLIB=-ldes425
2583       LIBS="$DESLIB $LIBS"
2584       AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
2585     else
2586       AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
2587       if test $have_des = yes; then
2588         DESLIB=-ldes
2589         LIBS="$DESLIB $LIBS"
2590         AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
2591       fi
2592     fi
2593     AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
2594     if test $have_krb4 = yes; then
2595       KRB4LIB=-lkrb4
2596       LIBS="$KRB4LIB $LIBS"
2597       AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
2598     else
2599       AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
2600       if test $have_krb = yes; then
2601         KRB4LIB=-lkrb
2602         LIBS="$KRB4LIB $LIBS"
2603         AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
2604       fi
2605     fi
2606   fi
2607
2608   if test "${with_kerberos5}" != no; then
2609     AC_CHECK_HEADERS(krb5.h,
2610       [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
2611                         [#include <krb5.h>])])
2612   else
2613     AC_CHECK_HEADERS(des.h,,
2614                      [AC_CHECK_HEADERS(kerberosIV/des.h,,
2615                                        [AC_CHECK_HEADERS(kerberos/des.h)])])
2616     AC_CHECK_HEADERS(krb.h,,
2617                      [AC_CHECK_HEADERS(kerberosIV/krb.h,,
2618                                        [AC_CHECK_HEADERS(kerberos/krb.h)])])
2619   fi
2620   AC_CHECK_HEADERS(com_err.h)
2621 fi
2622
2623 AC_SUBST(COM_ERRLIB)
2624 AC_SUBST(CRYPTOLIB)
2625 AC_SUBST(KRB5LIB)
2626 AC_SUBST(DESLIB)
2627 AC_SUBST(KRB4LIB)
2628
2629 # Solaris requires -lintl if you want strerror (which calls dgettext)
2630 # to return localized messages.
2631 AC_CHECK_LIB(intl, dgettext)
2632
2633 AC_MSG_CHECKING(whether localtime caches TZ)
2634 AC_CACHE_VAL(emacs_cv_localtime_cache,
2635 [if test x$ac_cv_func_tzset = xyes; then
2636 AC_TRY_RUN([#include <time.h>
2637 extern char **environ;
2638 unset_TZ ()
2639 {
2640   char **from, **to;
2641   for (to = from = environ; (*to = *from); from++)
2642     if (! (to[0][0] == 'T' && to[0][1] == 'Z' && to[0][2] == '='))
2643       to++;
2644 }
2645 char TZ_GMT0[] = "TZ=GMT0";
2646 char TZ_PST8[] = "TZ=PST8";
2647 main()
2648 {
2649   time_t now = time ((time_t *) 0);
2650   int hour_GMT0, hour_unset;
2651   if (putenv (TZ_GMT0) != 0)
2652     exit (1);
2653   hour_GMT0 = localtime (&now)->tm_hour;
2654   unset_TZ ();
2655   hour_unset = localtime (&now)->tm_hour;
2656   if (putenv (TZ_PST8) != 0)
2657     exit (1);
2658   if (localtime (&now)->tm_hour == hour_GMT0)
2659     exit (1);
2660   unset_TZ ();
2661   if (localtime (&now)->tm_hour != hour_unset)
2662     exit (1);
2663   exit (0);
2664 }], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
2665 [# If we have tzset, assume the worst when cross-compiling.
2666 emacs_cv_localtime_cache=yes])
2667 else
2668         # If we lack tzset, report that localtime does not cache TZ,
2669         # since we can't invalidate the cache if we don't have tzset.
2670         emacs_cv_localtime_cache=no
2671 fi])dnl
2672 AC_MSG_RESULT($emacs_cv_localtime_cache)
2673 if test $emacs_cv_localtime_cache = yes; then
2674   AC_DEFINE(LOCALTIME_CACHE, 1,
2675             [Define to 1 if localtime caches TZ.])
2676 fi
2677
2678 if test "x$HAVE_TIMEVAL" = xyes; then
2679   AC_CHECK_FUNCS(gettimeofday)
2680   if test $ac_cv_func_gettimeofday = yes; then
2681     AC_CACHE_CHECK(whether gettimeofday can accept two arguments,
2682                    emacs_cv_gettimeofday_two_arguments,
2683     [AC_TRY_COMPILE([
2684 #ifdef TIME_WITH_SYS_TIME
2685 #include <sys/time.h>
2686 #include <time.h>
2687 #else
2688 #ifdef HAVE_SYS_TIME_H
2689 #include <sys/time.h>
2690 #else
2691 #include <time.h>
2692 #endif
2693 #endif],
2694       [struct timeval time;
2695        gettimeofday (&time, 0);],
2696       emacs_cv_gettimeofday_two_arguments=yes,
2697       emacs_cv_gettimeofday_two_arguments=no)])
2698     if test $emacs_cv_gettimeofday_two_arguments = no; then
2699       AC_DEFINE(GETTIMEOFDAY_ONE_ARGUMENT, 1,
2700                 [Define to 1 if gettimeofday accepts only one argument.])
2701     fi
2702   fi
2703 fi
2704
2705 ok_so_far=yes
2706 AC_CHECK_FUNC(socket, , ok_so_far=no)
2707 if test $ok_so_far = yes; then
2708   AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
2709 fi
2710 if test $ok_so_far = yes; then
2711   AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
2712 fi
2713 if test $ok_so_far = yes; then
2714 dnl Fixme: Not used.  Should this be HAVE_SOCKETS?
2715   AC_DEFINE(HAVE_INET_SOCKETS, 1,
2716             [Define to 1 if you have inet sockets.])
2717 fi
2718
2719 AC_CHECK_HEADERS(sys/ioctl.h)
2720
2721 if test -f /usr/lpp/X11/bin/smt.exp; then
2722   AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
2723             [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
2724 fi
2725
2726 AC_MSG_CHECKING(whether system supports dynamic ptys)
2727 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
2728   AC_MSG_RESULT(yes)
2729   AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
2730 else
2731   AC_MSG_RESULT(no)
2732 fi
2733
2734 AC_FUNC_FORK
2735
2736 dnl Adapted from Haible's version.
2737 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
2738   [AC_TRY_LINK([#include <langinfo.h>],
2739     [char* cs = nl_langinfo(CODESET);],
2740     emacs_cv_langinfo_codeset=yes,
2741     emacs_cv_langinfo_codeset=no)
2742   ])
2743 if test $emacs_cv_langinfo_codeset = yes; then
2744   AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
2745     [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
2746 fi
2747
2748 AC_CHECK_TYPES(size_t)
2749
2750 AC_TYPE_MBSTATE_T
2751
2752 dnl Restrict could probably be used effectively other than in regex.c.
2753 AC_CACHE_CHECK([for C restrict keyword], emacs_cv_c_restrict,
2754   [AC_TRY_COMPILE([void fred (int *restrict x);], [],
2755                   emacs_cv_c_restrict=yes,
2756                   [AC_TRY_COMPILE([void fred (int *__restrict x);], [],
2757                                   emacs_cv_c_restrict=__restrict,
2758                                   emacs_cv_c_restrict=no)])])
2759 case "$emacs_cv_c_restrict" in
2760   yes) emacs_restrict=restrict;;
2761   no) emacs_restrict="";;
2762   *) emacs_restrict="$emacs_cv_c_restrict";;
2763 esac
2764 if test "$emacs_restrict" != __restrict; then
2765   AC_DEFINE_UNQUOTED(__restrict, $emacs_restrict,
2766     [Define to compiler's equivalent of C99 restrict keyword.
2767      Don't define if equivalent is `__restrict'.])
2768 fi
2769
2770 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
2771   [AC_TRY_COMPILE([void fred (int x[__restrict]);], [],
2772                   emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
2773 if test "$emacs_cv_c_restrict_arr" = yes; then
2774   AC_DEFINE(__restrict_arr, __restrict,
2775     [Define to compiler's equivalent of C99 restrict keyword in array
2776      declarations.  Define as empty for no equivalent.])
2777 fi
2778
2779 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
2780 dnl how the tty code is related to POSIX and/or other versions of termios.
2781 dnl The following looks like a useful start.
2782 dnl
2783 dnl AC_SYS_POSIX_TERMIOS
2784 dnl if test $ac_cv_sys_posix_termios = yes; then
2785 dnl    AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
2786 dnl                                and macros for terminal control.])
2787 dnl    AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
2788 dnl fi
2789
2790 dnl Fixme: Use AC_FUNC_MEMCMP since memcmp is used.  (Needs libobj replacement.)
2791
2792 # Set up the CFLAGS for real compilation, so we can substitute it.
2793 CFLAGS="$REAL_CFLAGS"
2794 CPPFLAGS="$REAL_CPPFLAGS"
2795
2796 #### Find out which version of Emacs this is.
2797 [version=`grep 'defconst[        ]*emacs-version' ${srcdir}/lisp/version.el \
2798          | sed -e 's/^[^"]*"\([^"]*\)".*$/\1/'`]
2799 if test x"${version}" = x; then
2800   AC_MSG_ERROR([can't find current emacs version in `${srcdir}/lisp/version.el'.])
2801 fi
2802 if test x"${version}" != x"$PACKAGE_VERSION"; then
2803   AC_MSG_WARN([version mismatch between `${srcdir}/configure.in' and `${srcdir}/lisp/version.el'.])
2804 fi
2805
2806 ### Specify what sort of things we'll be editing into Makefile and config.h.
2807 ### Use configuration here uncanonicalized to avoid exceeding size limits.
2808 AC_SUBST(version)
2809 AC_SUBST(configuration)
2810 AC_SUBST(canonical)
2811 AC_SUBST(srcdir)
2812 AC_SUBST(prefix)
2813 AC_SUBST(exec_prefix)
2814 AC_SUBST(bindir)
2815 AC_SUBST(datadir)
2816 AC_SUBST(sharedstatedir)
2817 AC_SUBST(libexecdir)
2818 AC_SUBST(mandir)
2819 AC_SUBST(infodir)
2820 AC_SUBST(lispdir)
2821 AC_SUBST(locallisppath)
2822 AC_SUBST(lisppath)
2823 AC_SUBST(x_default_search_path)
2824 AC_SUBST(etcdir)
2825 AC_SUBST(archlibdir)
2826 AC_SUBST(docdir)
2827 AC_SUBST(bitmapdir)
2828 AC_SUBST(gamedir)
2829 AC_SUBST(gameuser)
2830 AC_SUBST(unexec)
2831 AC_SUBST(LD_SWITCH_X_SITE)
2832 AC_SUBST(LD_SWITCH_X_SITE_AUX)
2833 AC_SUBST(C_SWITCH_X_SITE)
2834 AC_SUBST(C_SWITCH_X_SYSTEM)
2835 AC_SUBST(CFLAGS)
2836 ## Used in lwlib/Makefile.in.
2837 AC_SUBST(X_TOOLKIT_TYPE)
2838 AC_SUBST(machfile)
2839 AC_SUBST(opsysfile)
2840 AC_SUBST(GETLOADAVG_LIBS)
2841 AC_SUBST(ns_appdir)
2842 AC_SUBST(ns_appbindir)
2843 AC_SUBST(ns_appresdir)
2844 AC_SUBST(ns_appsrc)
2845 AC_SUBST(GNUSTEP_MAKEFILES)
2846 AC_SUBST(GNUSTEP_SYSTEM_HEADERS)
2847 AC_SUBST(GNUSTEP_SYSTEM_LIBRARIES)
2848 AC_SUBST(GNU_OBJC_CFLAGS)
2849 AC_SUBST(LIB_SRC_EXTRA_INSTALLABLES)
2850 AC_SUBST(OTHER_FILES)
2851
2852 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION,  "${canonical}",
2853                    [Define to the canonical Emacs configuration name.])
2854 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
2855                    [Define to the options passed to configure.])
2856 AC_DEFINE_UNQUOTED(config_machfile,  "${machfile}",
2857                    [Define to the used machine dependent file.])
2858 AC_DEFINE_UNQUOTED(config_opsysfile, "${opsysfile}",
2859                    [Define to the used os dependent file.])
2860 AC_DEFINE_UNQUOTED(LD_SWITCH_X_SITE, ${LD_SWITCH_X_SITE},
2861 [Define LD_SWITCH_X_SITE to contain any special flags your loader
2862  may need to deal with X Windows.  For instance, if you've defined
2863  HAVE_X_WINDOWS above and your X libraries aren't in a place that
2864  your loader can find on its own, you might want to add "-L/..." or
2865  something similar.])
2866 AC_DEFINE_UNQUOTED(LD_SWITCH_X_SITE_AUX, ${LD_SWITCH_X_SITE_AUX},
2867                    [Define LD_SWITCH_X_SITE_AUX with an -R option
2868                     in case it's needed (for Solaris, for example).])
2869 AC_DEFINE_UNQUOTED(C_SWITCH_X_SITE,  ${C_SWITCH_X_SITE},
2870 [Define C_SWITCH_X_SITE to contain any special flags your compiler
2871  may need to deal with X Windows.  For instance, if you've defined
2872  HAVE_X_WINDOWS above and your X include files aren't in a place
2873  that your compiler can find on its own, you might want to add
2874  "-I/..." or something similar.])
2875
2876 XMENU_OBJ=
2877 XOBJ=
2878 if test "${HAVE_X_WINDOWS}" = "yes" ; then
2879   AC_DEFINE(HAVE_X_WINDOWS, 1,
2880             [Define to 1 if you want to use the X window system.])
2881   XMENU_OBJ=xmenu.o
2882   XOBJ="xterm.o xfns.o xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o xsettings.o xgselect.o"
2883 fi
2884 AC_SUBST(XMENU_OBJ)
2885 AC_SUBST(XOBJ)
2886
2887 WIDGET_OBJ=
2888 MOTIF_LIBW=
2889 if test "${USE_X_TOOLKIT}" != "none" ; then
2890   WIDGET_OBJ=widget.o
2891   AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
2892   if test "${USE_X_TOOLKIT}" = "LUCID"; then
2893     AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
2894   elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
2895     AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
2896     MOTIF_LIBW=-lXm
2897     case "$opsys" in
2898       gnu-linux)
2899         ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
2900         MOTIF_LIBW="$MOTIF_LIBW -lXpm"
2901         ;;
2902
2903       unixware)
2904         ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
2905         ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
2906         MOTIF_LIBW="MOTIF_LIBW -lXimp"
2907         ;;
2908
2909       aix4-2)
2910         ## olson@mcs.anl.gov says -li18n is needed by -lXm.
2911         MOTIF_LIBW="$MOTIF_LIBW -li18n"
2912         ;;
2913     esac
2914     MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
2915   fi
2916 fi
2917 AC_SUBST(WIDGET_OBJ)
2918
2919 TOOLKIT_LIBW=
2920 case "$USE_X_TOOLKIT" in
2921   MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
2922   LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
2923   none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
2924 esac
2925 AC_SUBST(TOOLKIT_LIBW)
2926
2927 if test "$USE_X_TOOLKIT" = "none"; then
2928   LIBXT_OTHER="\$(LIBXSM)"
2929 else
2930   LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
2931 fi
2932 AC_SUBST(LIBXT_OTHER)
2933
2934 ## The X Menu stuff is present in the X10 distribution, but missing
2935 ## from X11.  If we have X10, just use the installed library;
2936 ## otherwise, use our own copy.
2937 if test "${HAVE_X11}" = "yes" ; then
2938   AC_DEFINE(HAVE_X11, 1,
2939             [Define to 1 if you want to use version 11 of X windows.
2940              Otherwise, Emacs expects to use version 10.])
2941
2942   if test "$USE_X_TOOLKIT" = "none"; then
2943     OLDXMENU="\${oldXMenudir}libXMenu11.a"
2944   else
2945     OLDXMENU="\${lwlibdir}liblw.a"
2946   fi
2947   LIBXMENU="\$(OLDXMENU)"
2948   LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
2949 else
2950   OLDXMENU=
2951   LIBXMENU="-lXMenu"
2952   LIBX_OTHER=
2953 fi
2954
2955 if test "$HAVE_GTK" = "yes"; then
2956   OLDXMENU=
2957   LIBXMENU=
2958 fi
2959
2960 AC_SUBST(OLDXMENU)
2961 AC_SUBST(LIBXMENU)
2962 AC_SUBST(LIBX_OTHER)
2963
2964 if test "${HAVE_MENUS}" = "yes" ; then
2965   AC_DEFINE(HAVE_MENUS, 1,
2966             [Define to 1 if you have mouse menus.
2967              (This is automatic if you use X, but the option to specify it remains.)
2968              It is also defined with other window systems that support xmenu.c.])
2969 fi
2970 if test "${GNU_MALLOC}" = "yes" ; then
2971   AC_DEFINE(GNU_MALLOC, 1,
2972             [Define to 1 if you want to use the GNU memory allocator.])
2973 fi
2974 if test "${REL_ALLOC}" = "yes" ; then
2975   AC_DEFINE(REL_ALLOC, 1,
2976             [Define REL_ALLOC if you want to use the relocating allocator for
2977              buffer space.])
2978 fi
2979
2980
2981 if test "$opsys" = "cygwin"; then
2982   CYGWIN_OBJ="sheap.o"
2983   ## Cygwin differs because of its unexec().
2984   PRE_ALLOC_OBJ=
2985   POST_ALLOC_OBJ="lastfile.o vm-limit.o"
2986 else
2987   CYGWIN_OBJ=
2988   PRE_ALLOC_OBJ=lastfile.o
2989   POST_ALLOC_OBJ="\$(vmlimitobj)"
2990 fi
2991 AC_SUBST(CYGWIN_OBJ)
2992 AC_SUBST(PRE_ALLOC_OBJ)
2993 AC_SUBST(POST_ALLOC_OBJ)
2994
2995
2996 case "$opsys" in
2997   aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
2998
2999   darwin)
3000   ## The -headerpad option tells ld (see man page) to leave room at the
3001   ## end of the header for adding load commands.  Needed for dumping.
3002   ## 0x690 is the total size of 30 segment load commands (at 56
3003   ## each); under Cocoa 31 commands are required.
3004   if test "$HAVE_NS" = "yes"; then
3005     libs_nsgui="-framework AppKit"
3006     headerpad_extra=6C8
3007   else
3008     libs_nsgui=
3009     headerpad_extra=690
3010   fi
3011   LD_SWITCH_SYSTEM_TEMACS="-prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
3012   ;;
3013
3014   *) LD_SWITCH_SYSTEM_TEMACS= ;;
3015 esac
3016 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
3017
3018
3019 AH_TOP([/* GNU Emacs site configuration template file.
3020    Copyright (C) 1988, 1993, 1994, 1999, 2000, 2001, 2002, 2004, 2005,
3021      2006, 2007, 2008, 2009, 2010  Free Software Foundation, Inc.
3022
3023 This file is part of GNU Emacs.
3024
3025 GNU Emacs is free software: you can redistribute it and/or modify
3026 it under the terms of the GNU General Public License as published by
3027 the Free Software Foundation, either version 3 of the License, or
3028 (at your option) any later version.
3029
3030 GNU Emacs is distributed in the hope that it will be useful,
3031 but WITHOUT ANY WARRANTY; without even the implied warranty of
3032 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
3033 GNU General Public License for more details.
3034
3035 You should have received a copy of the GNU General Public License
3036 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
3037
3038
3039 /* No code in Emacs #includes config.h twice, but some bits of code
3040    intended to work with other packages as well (like gmalloc.c)
3041    think they can include it as many times as they like.  */
3042 #ifndef EMACS_CONFIG_H
3043 #define EMACS_CONFIG_H
3044 ])dnl
3045
3046 AH_BOTTOM([
3047 /* If we're using X11/Carbon/GNUstep, define some consequences.  */
3048 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
3049 #define HAVE_WINDOW_SYSTEM
3050 #define HAVE_MOUSE
3051 #endif
3052
3053 /* Define AMPERSAND_FULL_NAME if you use the convention
3054    that & in the full name stands for the login id.  */
3055 /* Turned on June 1996 supposing nobody will mind it.  */
3056 #define AMPERSAND_FULL_NAME
3057
3058 /* Define HAVE_SOUND if we have sound support.  We know it works
3059    and compiles only on the specified platforms.   For others,
3060    it probably doesn't make sense to try.  */
3061
3062 #if defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
3063 #ifdef HAVE_MACHINE_SOUNDCARD_H
3064 #define HAVE_SOUND 1
3065 #endif
3066 #ifdef HAVE_SYS_SOUNDCARD_H
3067 #define HAVE_SOUND 1
3068 #endif
3069 #ifdef HAVE_SOUNDCARD_H
3070 #define HAVE_SOUND 1
3071 #endif
3072 #ifdef HAVE_ALSA
3073 #define HAVE_SOUND 1
3074 #endif
3075 #endif /* __FreeBSD__ || __NetBSD__ || __linux__  */
3076
3077 /* If using GNU, then support inline function declarations. */
3078 /* Don't try to switch on inline handling as detected by AC_C_INLINE
3079    generally, because even if non-gcc compilers accept `inline', they
3080    may reject `extern inline'.  */
3081 #if defined (__GNUC__) && defined (OPTIMIZE)
3082 #define INLINE __inline__
3083 #else
3084 #define INLINE
3085 #endif
3086
3087 /* `subprocesses' should be defined if you want to
3088    have code for asynchronous subprocesses
3089    (as used in M-x compile and M-x shell).
3090    Only MSDOS does not support this (it overrides
3091    this in its config_opsysfile below).  */
3092
3093 #define subprocesses
3094
3095 /* Include the os and machine dependent files.  */
3096 #include config_opsysfile
3097 #include config_machfile
3098
3099 /* Set up some defines, C and LD flags for NeXTstep interface on GNUstep.
3100   (There is probably a better place to do this, but right now the Cocoa
3101    side does this in s/darwin.h and we cannot
3102    parallel this exactly since GNUstep is multi-OS. */
3103 #ifdef HAVE_NS
3104 # ifdef NS_IMPL_GNUSTEP
3105 /* GNUstep needs a bit more pure memory.  Of the existing knobs,
3106 SYSTEM_PURESIZE_EXTRA seems like the least likely to cause problems.  */
3107 #  define SYSTEM_PURESIZE_EXTRA 30000
3108 # endif /* NS_IMPL_GNUSTEP */
3109 #endif /* HAVE_NS */
3110
3111 /* SIGTYPE is the macro we actually use.  */
3112 #ifndef SIGTYPE
3113 #define SIGTYPE RETSIGTYPE
3114 #endif
3115
3116 #ifdef emacs /* Don't do this for lib-src.  */
3117 /* Tell regex.c to use a type compatible with Emacs.  */
3118 #define RE_TRANSLATE_TYPE Lisp_Object
3119 #define RE_TRANSLATE(TBL, C) CHAR_TABLE_TRANSLATE (TBL, C)
3120 #ifdef make_number
3121 /* If make_number is a macro, use it.  */
3122 #define RE_TRANSLATE_P(TBL) (!EQ (TBL, make_number (0)))
3123 #else
3124 /* If make_number is a function, avoid it.  */
3125 #define RE_TRANSLATE_P(TBL) (!(INTEGERP (TBL) && XINT (TBL) == 0))
3126 #endif
3127 #endif
3128
3129 /* Avoid link-time collision with system mktime if we will use our own.  */
3130 #if ! HAVE_MKTIME || BROKEN_MKTIME
3131 #define mktime emacs_mktime
3132 #endif
3133
3134 #define my_strftime nstrftime   /* for strftime.c */
3135
3136 /* The rest of the code currently tests the CPP symbol BSTRING.
3137    Override any claims made by the system-description files.
3138    Note that on some SCO version it is possible to have bcopy and not bcmp.  */
3139 #undef BSTRING
3140 #if defined (HAVE_BCOPY) && defined (HAVE_BCMP)
3141 #define BSTRING
3142 #endif
3143
3144 /* Some of the files of Emacs which are intended for use with other
3145    programs assume that if you have a config.h file, you must declare
3146    the type of getenv.
3147
3148    This declaration shouldn't appear when alloca.s or Makefile.in
3149    includes config.h.  */
3150 #ifndef NOT_C_CODE
3151 extern char *getenv ();
3152 #endif
3153
3154 /* These default definitions are good for almost all machines.
3155    The exceptions override them in m/MACHINE.h.  */
3156
3157 #ifndef BITS_PER_CHAR
3158 #define BITS_PER_CHAR 8
3159 #endif
3160
3161 #ifndef BITS_PER_SHORT
3162 #define BITS_PER_SHORT 16
3163 #endif
3164
3165 /* Note that lisp.h uses this in a preprocessor conditional, so it
3166    would not work to use sizeof.  That being so, we do all of them
3167    without sizeof, for uniformity's sake.  */
3168 #ifndef BITS_PER_INT
3169 #define BITS_PER_INT 32
3170 #endif
3171
3172 #ifndef BITS_PER_LONG
3173 #ifdef _LP64
3174 #define BITS_PER_LONG 64
3175 #else
3176 #define BITS_PER_LONG 32
3177 #endif
3178 #endif
3179
3180 /* Define if the compiler supports function prototypes.  It may do so
3181    but not define __STDC__ (e.g. DEC C by default) or may define it as
3182    zero.  */
3183 #undef PROTOTYPES
3184 /* For mktime.c:  */
3185 #ifndef __P
3186 # if defined PROTOTYPES
3187 #  define __P(args) args
3188 # else
3189 #  define __P(args) ()
3190 # endif  /* GCC.  */
3191 #endif /* __P */
3192
3193 /* Don't include "string.h" or <stdlib.h> in non-C code.  */
3194 #ifndef NOT_C_CODE
3195 #ifdef HAVE_STRING_H
3196 #include "string.h"
3197 #endif
3198 #ifdef HAVE_STRINGS_H
3199 #include "strings.h"  /* May be needed for bcopy & al. */
3200 #endif
3201 #ifdef HAVE_STDLIB_H
3202 #include <stdlib.h>
3203 #endif
3204 #ifndef __GNUC__
3205 # ifdef HAVE_ALLOCA_H
3206 #  include <alloca.h>
3207 # else /* AIX files deal with #pragma.  */
3208 #  ifndef alloca /* predefined by HP cc +Olibcalls */
3209 char *alloca ();
3210 #  endif
3211 # endif /* HAVE_ALLOCA_H */
3212 #endif /* __GNUC__ */
3213 #ifndef HAVE_SIZE_T
3214 typedef unsigned size_t;
3215 #endif
3216 #endif /* NOT_C_CODE */
3217
3218 /* Define HAVE_X_I18N if we have usable i18n support.  */
3219
3220 #ifdef HAVE_X11R6
3221 #define HAVE_X_I18N
3222 #elif !defined X11R5_INHIBIT_I18N
3223 #define HAVE_X_I18N
3224 #endif
3225
3226 /* Define HAVE_X11R6_XIM if we have usable X11R6-style XIM support.  */
3227
3228 #if defined HAVE_X11R6 && !defined INHIBIT_X11R6_XIM
3229 #define HAVE_X11R6_XIM
3230 #endif
3231
3232 #if defined __GNUC__ && (__GNUC__ > 2 \
3233                          || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5))
3234 #define NO_RETURN       __attribute__ ((__noreturn__))
3235 #else
3236 #define NO_RETURN       /* nothing */
3237 #endif
3238
3239 /* These won't be used automatically yet.  We also need to know, at least,
3240    that the stack is continuous.  */
3241 #ifdef __GNUC__
3242 #  ifndef GC_SETJMP_WORKS
3243   /* GC_SETJMP_WORKS is nearly always appropriate for GCC --
3244      see NON_SAVING_SETJMP in the target descriptions.  */
3245   /* Exceptions (see NON_SAVING_SETJMP in target description) are
3246      SCO5 non-ELF (but Emacs specifies ELF) and SVR3 on x86.
3247      Fixme: Deal with SVR3.  */
3248 #    define GC_SETJMP_WORKS 1
3249 #  endif
3250 #  ifndef GC_LISP_OBJECT_ALIGNMENT
3251 #    define GC_LISP_OBJECT_ALIGNMENT (__alignof__ (Lisp_Object))
3252 #  endif
3253 #endif
3254
3255 #ifndef HAVE_BCOPY
3256 #define bcopy(a,b,s) memcpy (b,a,s)
3257 #endif
3258 #ifndef HAVE_BZERO
3259 #define bzero(a,s) memset (a,0,s)
3260 #endif
3261 #ifndef HAVE_BCMP
3262 #define BCMP memcmp
3263 #endif
3264
3265 #endif /* EMACS_CONFIG_H */
3266
3267 /*
3268 Local Variables:
3269 mode: c
3270 End:
3271 */
3272 ])dnl
3273
3274 #### Report on what we decided to do.
3275 #### Report GTK as a toolkit, even if it doesn't use Xt.
3276 #### It makes printing result more understandable as using GTK sets
3277 #### toolkit_scroll_bars to yes by default.
3278 if test "${HAVE_GTK}" = "yes"; then
3279   USE_X_TOOLKIT=GTK
3280 fi
3281
3282 echo "
3283 Configured for \`${canonical}'.
3284
3285   Where should the build process find the source code?    ${srcdir}
3286   What operating system and machine description files should Emacs use?
3287         \`${opsysfile}' and \`${machfile}'
3288   What compiler should emacs be built with?               ${CC} ${CFLAGS}
3289   Should Emacs use the GNU version of malloc?             ${GNU_MALLOC}${GNU_MALLOC_reason}
3290   Should Emacs use a relocating allocator for buffers?    ${REL_ALLOC}
3291   Should Emacs use mmap(2) for buffer allocation?         $use_mmap_for_buffers
3292   What window system should Emacs use?                    ${window_system}
3293   What toolkit should Emacs use?                          ${USE_X_TOOLKIT}"
3294
3295 if test -n "${x_includes}"; then
3296 echo "  Where do we find X Windows header files?                ${x_includes}"
3297 else
3298 echo "  Where do we find X Windows header files?                Standard dirs"
3299 fi
3300 if test -n "${x_libraries}"; then
3301 echo "  Where do we find X Windows libraries?                   ${x_libraries}"
3302 else
3303 echo "  Where do we find X Windows libraries?                   Standard dirs"
3304 fi
3305
3306 echo "  Does Emacs use -lXaw3d?                                 ${HAVE_XAW3D}"
3307 echo "  Does Emacs use -lXpm?                                   ${HAVE_XPM}"
3308 echo "  Does Emacs use -ljpeg?                                  ${HAVE_JPEG}"
3309 echo "  Does Emacs use -ltiff?                                  ${HAVE_TIFF}"
3310 echo "  Does Emacs use a gif library?                           ${HAVE_GIF} $LIBGIF"
3311 echo "  Does Emacs use -lpng?                                   ${HAVE_PNG}"
3312 echo "  Does Emacs use -lrsvg-2?                                ${HAVE_RSVG}"
3313 echo "  Does Emacs use -lgpm?                                   ${HAVE_GPM}"
3314 echo "  Does Emacs use -ldbus?                                  ${HAVE_DBUS}"
3315 echo "  Does Emacs use -lgconf?                                 ${HAVE_GCONF}"
3316 echo "  Does Emacs use -lselinux?                               ${HAVE_LIBSELINUX}"
3317
3318 echo "  Does Emacs use -lfreetype?                              ${HAVE_FREETYPE}"
3319 echo "  Does Emacs use -lm17n-flt?                              ${HAVE_M17N_FLT}"
3320 echo "  Does Emacs use -lotf?                                   ${HAVE_LIBOTF}"
3321 echo "  Does Emacs use -lxft?                                   ${HAVE_XFT}"
3322
3323 echo "  Does Emacs use toolkit scroll bars?                     ${USE_TOOLKIT_SCROLL_BARS}"
3324 echo
3325
3326 if test $USE_XASSERTS = yes; then
3327    echo "  Compiling with asserts turned on."
3328    CPPFLAGS="$CPPFLAGS -DXASSERTS=1"
3329 fi
3330
3331 echo
3332
3333 if test "$HAVE_NS" = "yes"; then
3334    echo
3335    echo "You must run \"make install\" in order to test the built application.
3336 The installed application will go to nextstep/Emacs.app and can be
3337 run or moved from there."
3338    if test "$EN_NS_SELF_CONTAINED" = "yes"; then
3339       echo "The application will be fully self-contained."
3340     else
3341       echo "The lisp resources for the application will be installed under ${prefix}.
3342 You may need to run \"make install\" with sudo.  The application will fail
3343 to run if these resources are not installed."
3344    fi
3345    echo
3346 fi
3347
3348 if test "$HAVE_DBUS" = yes && test "${opsys}" != "gnu-linux"; then
3349   echo "D-Bus integration has been tested for GNU/Linux only."
3350   echo
3351 fi
3352
3353
3354 # Remove any trailing slashes in these variables.
3355 [test "${prefix}" != NONE &&
3356   prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
3357 test "${exec_prefix}" != NONE &&
3358   exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
3359
3360 # Now get this: Some word that is part of the ${srcdir} directory name
3361 # or the ${configuration} value might, just might, happen to be an
3362 # identifier like `sun4' or `i386' or something, and be predefined by
3363 # the C preprocessor to some helpful value like 1, or maybe the empty
3364 # string.  Needless to say consequent macro substitutions are less
3365 # than conducive to the makefile finding the correct directory.
3366 [cpp_undefs="`echo $srcdir $configuration $canonical unix |
3367   sed -e 's/[^a-zA-Z0-9_]/ /g' -e 's/^/ /' -e 's/  *$//' \
3368   -e 's/  */ -U/g' -e 's/-U[0-9][^ ]*//g'`"]
3369
3370 ## Check if the C preprocessor will convert `..' to `. .'.  If so, set
3371 ## CPP_NEED_TRADITIONAL to `yes' so that the code to generate Makefile
3372 ## from Makefile.c can correctly provide the arg `-traditional' to the
3373 ## C preprocessor.
3374
3375 AC_EGREP_CPP(yes..yes,
3376         [yes..yes],
3377         CPP_NEED_TRADITIONAL=no,
3378         CPP_NEED_TRADITIONAL=yes)
3379
3380 AC_OUTPUT(Makefile lib-src/Makefile.c:lib-src/Makefile.in oldXMenu/Makefile \
3381         doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
3382         doc/lispref/Makefile src/Makefile.c:src/Makefile.in \
3383         lwlib/Makefile lisp/Makefile leim/Makefile, [
3384
3385 ### Make the necessary directories, if they don't exist.
3386 for dir in etc lisp ; do
3387   test -d ${dir} || mkdir ${dir}
3388 done
3389
3390 # Build src/Makefile from ${srcdir}/src/Makefile.c
3391 # and lib-src/Makefile from ${srcdir}/lib-src/Makefile.c
3392 # This must be done after src/config.h is built, since we rely on that file.
3393
3394 echo creating src/epaths.h
3395 ${MAKE-make} epaths-force
3396
3397 # As of 2000-11-19, newest development versions of GNU cpp preprocess
3398 # `..' to `. .'  unless invoked with -traditional
3399
3400 if test "x$GCC" = xyes && test "x$CPP_NEED_TRADITIONAL" = xyes; then
3401   CPPFLAGS="$CPPFLAGS -traditional"
3402 fi
3403
3404 echo creating lib-src/Makefile
3405 ( cd lib-src
3406   rm -f junk.c junk1.c junk2.c
3407   sed -e '/start of cpp stuff/q' \
3408       < Makefile.c > junk1.c
3409   sed -e '1,/start of cpp stuff/d'\
3410       -e 's,/\*\*/#\(.*\)$,/* \1 */,' \
3411       < Makefile.c > junk.c
3412   $CPP -P $cpp_undefs -I. -I$srcdir/src $CPPFLAGS junk.c | \
3413       sed -e 's/^ /     /' -e '/^#/d' -e '/^[   \f]*$/d' > junk2.c
3414   cat junk1.c junk2.c > Makefile.new
3415   rm -f junk.c junk1.c junk2.c
3416   chmod 444 Makefile.new
3417   mv -f Makefile.new Makefile
3418 )
3419
3420 echo creating src/Makefile
3421 ( cd src
3422   rm -f junk.c junk1.c junk2.c
3423   sed -e '/start of cpp stuff/q' \
3424       < Makefile.c > junk1.c
3425   sed -e '1,/start of cpp stuff/d'\
3426       -e 's,/\*\*/#\(.*\)$,/* \1 */,' \
3427       < Makefile.c > junk.c
3428   $CPP -P $cpp_undefs -I. -I$srcdir/src $CPPFLAGS junk.c | \
3429       sed -e 's/^ /     /' -e '/^#/d' -e '/^[   \f]*$/d' > junk2.c
3430   cat junk1.c junk2.c > Makefile.new
3431   rm -f junk.c junk1.c junk2.c
3432   chmod 444 Makefile.new
3433   mv -f Makefile.new Makefile
3434 )
3435
3436 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
3437   echo creating src/.gdbinit
3438   echo source $srcdir/src/.gdbinit > src/.gdbinit
3439 fi
3440
3441 ], [GCC="$GCC" NON_GNU_CPP="$NON_GNU_CPP" CPP="$CPP" CPP_NEED_TRADITIONAL="$CPP_NEED_TRADITIONAL" CPPFLAGS="$CPPFLAGS" cpp_undefs="$cpp_undefs"])
3442
3443 m4_if(dnl       Do not change this comment
3444    arch-tag: 156a4dd5-bddc-4d18-96ac-f37742cf6a5e
3445 )dnl