1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2012 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
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.
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.
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/>.
25 AC_INIT(emacs, 24.2.50)
26 AC_CONFIG_HEADER(src/config.h:src/config.in)
27 AC_CONFIG_SRCDIR(src/lisp.h)
28 AC_CONFIG_AUX_DIR(build-aux)
29 dnl Fairly arbitrary, older versions might work too.
30 AM_INIT_AUTOMAKE(1.11)
32 dnl Support for --program-prefix, --program-suffix and
33 dnl --program-transform-name options
36 dnl It is important that variables on the RHS not be expanded here,
37 dnl hence the single quotes. This is per the GNU coding standards, see
38 dnl (autoconf) Installation Directory Variables
39 dnl See also epaths.h below.
40 lispdir='${datadir}/emacs/${version}/lisp'
41 leimdir='${datadir}/emacs/${version}/leim'
42 standardlisppath='${lispdir}:${leimdir}'
43 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
44 '${datadir}/emacs/site-lisp'
45 lisppath='${locallisppath}:${standardlisppath}'
46 etcdir='${datadir}/emacs/${version}/etc'
47 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
48 docdir='${datadir}/emacs/${version}/etc'
49 gamedir='${localstatedir}/games/emacs'
51 dnl Special option to disable the most of other options.
53 [AS_HELP_STRING([--without-all],
54 [omit almost all features and build
55 small executable with minimal dependencies])],
56 with_features=$withval,
59 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
60 dnl Create a new --with option that defaults to being disabled.
61 dnl NAME is the base name of the option. The shell variable with_NAME
62 dnl will be set to either the user's value (if the option is
63 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
64 dnl option is not specified). Note that the shell variable name is
65 dnl constructed as autoconf does, by replacing non-alphanumeric
66 dnl characters with "_".
67 dnl HELP-STRING is the help text for the option.
68 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
69 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
70 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
73 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
74 dnl Create a new --with option that defaults to $enable_features.
75 dnl NAME is the base name of the option. The shell variable with_NAME
76 dnl will be set either to 'no' (for a plain --without-NAME) or to
77 dnl 'yes' (if the option is not specified). Note that the shell
78 dnl variable name is constructed as autoconf does, by replacing
79 dnl non-alphanumeric characters with "_".
80 dnl HELP-STRING is the help text for the option.
81 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
82 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
83 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
86 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
87 if test "$with_pop" = yes; then
88 AC_DEFINE(MAIL_USE_POP)
90 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
92 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
93 if test "$with_kerberos" != no; then
97 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
99 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
100 if test "${with_kerberos5}" != no; then
101 if test "${with_kerberos}" = no; then
105 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
108 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
109 dnl FIXME hesiod support may not be present, so it seems like an error
110 dnl to define, or at least use, this unconditionally.
111 if test "$with_hesiod" != no; then
112 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
115 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
116 if test "$with_mmdf" != no; then
117 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
120 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
121 if test "$with_mail_unlink" != no; then
122 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
125 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
126 [string giving default POP mail host])],
127 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
129 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
131 OPTION_DEFAULT_ON([sync-input],[process async input synchronously])
132 if test "$with_sync_input" = yes; then
133 AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])
136 dnl FIXME currently it is not the last.
137 dnl This should be the last --with option, because --with-x is
138 dnl added later on when we find the path of X, and it's best to
139 dnl keep them together visually.
140 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
141 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
142 [ case "${withval}" in
143 y | ye | yes ) val=gtk ;;
145 l | lu | luc | luci | lucid ) val=lucid ;;
146 a | at | ath | athe | athen | athena ) val=athena ;;
147 m | mo | mot | moti | motif ) val=motif ;;
148 g | gt | gtk ) val=gtk ;;
152 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
153 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
154 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
155 `athena' and `lucid' are synonyms.])
161 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
162 if test "$with_wide_int" = yes; then
163 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
166 dnl _ON results in a '--without' option in the --help output, so
167 dnl the help text should refer to "don't compile", etc.
168 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
169 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
170 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
171 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
172 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
173 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
174 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
175 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
177 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
178 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
179 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
181 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
182 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
183 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
184 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
186 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
187 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
188 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
189 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
190 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
191 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
193 ## For the times when you want to build Emacs but don't have
194 ## a suitable makeinfo, and can live without the manuals.
195 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
196 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
198 ## Makefile.in needs the cache file name.
201 ## This is an option because I do not know if all info/man support
202 ## compressed files, nor how to test if they do so.
203 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
204 if test $with_compress_info = yes; then
211 AC_ARG_WITH([pkg-config-prog],dnl
212 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
213 [path to pkg-config for finding GTK and librsvg])])
214 if test "X${with_pkg_config_prog}" != X; then
215 if test "${with_pkg_config_prog}" != yes; then
216 PKG_CONFIG="${with_pkg_config_prog}"
221 AC_ARG_WITH([crt-dir],dnl
222 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
223 The default is /usr/lib, or /usr/lib64 on some platforms.])])
224 CRT_DIR="${with_crt_dir}"
226 AC_ARG_WITH(gameuser,dnl
227 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
228 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
229 && gameuser="${with_gameuser}"
230 test "X$gameuser" = X && gameuser=games
232 AC_ARG_WITH([gnustep-conf],dnl
233 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
234 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
235 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
236 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
237 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
239 AC_ARG_ENABLE(ns-self-contained,
240 [AS_HELP_STRING([--disable-ns-self-contained],
241 [disable self contained build under NeXTstep])],
242 EN_NS_SELF_CONTAINED=$enableval,
243 EN_NS_SELF_CONTAINED=yes)
245 AC_ARG_ENABLE(locallisppath,
246 [AS_HELP_STRING([--enable-locallisppath=PATH],
247 [directories Emacs should search for lisp files specific
249 if test "${enableval}" = "no"; then
251 elif test "${enableval}" != "yes"; then
252 locallisppath=${enableval}
255 AC_ARG_ENABLE(checking,
256 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
257 [enable expensive run-time checks. With LIST,
258 enable only specific categories of checks.
259 Categories are: all,yes,no.
260 Flags are: stringbytes, stringoverrun, stringfreelist,
261 xmallocoverrun, conslist, glyphs])],
262 [ac_checking_flags="${enableval}"],[])
263 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
264 for check in $ac_checking_flags
267 # these set all the flags to specific states
268 yes) ac_enable_checking=1 ;;
269 no) ac_enable_checking= ;
270 ac_gc_check_stringbytes= ;
271 ac_gc_check_string_overrun= ;
272 ac_gc_check_string_free_list= ;
273 ac_xmalloc_overrun= ;
274 ac_gc_check_cons_list= ;
276 all) ac_enable_checking=1 ;
277 ac_gc_check_stringbytes=1 ;
278 ac_gc_check_string_overrun=1 ;
279 ac_gc_check_string_free_list=1 ;
280 ac_xmalloc_overrun=1 ;
281 ac_gc_check_cons_list=1 ;
283 # these enable particular checks
284 stringbytes) ac_gc_check_stringbytes=1 ;;
285 stringoverrun) ac_gc_check_string_overrun=1 ;;
286 stringfreelist) ac_gc_check_string_free_list=1 ;;
287 xmallocoverrun) ac_xmalloc_overrun=1 ;;
288 conslist) ac_gc_check_cons_list=1 ;;
289 glyphs) ac_glyphs_debug=1 ;;
290 *) AC_MSG_ERROR(unknown check category $check) ;;
295 if test x$ac_enable_checking != x ; then
296 AC_DEFINE(ENABLE_CHECKING, 1,
297 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
299 if test x$ac_gc_check_stringbytes != x ; then
300 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
301 [Define this temporarily to hunt a bug. If defined, the size of
302 strings is redundantly recorded in sdata structures so that it can
303 be compared to the sizes recorded in Lisp strings.])
305 if test x$ac_gc_check_string_overrun != x ; then
306 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
307 [Define this to check for short string overrun.])
309 if test x$ac_gc_check_string_free_list != x ; then
310 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
311 [Define this to check the string free list.])
313 if test x$ac_xmalloc_overrun != x ; then
314 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
315 [Define this to check for malloc buffer overrun.])
317 if test x$ac_gc_check_cons_list != x ; then
318 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
319 [Define this to check for errors in cons list.])
321 if test x$ac_glyphs_debug != x ; then
322 AC_DEFINE(GLYPH_DEBUG, 1,
323 [Define this to enable glyphs debugging code.])
326 AC_ARG_ENABLE(check-lisp-object-type,
327 [AS_HELP_STRING([--enable-check-lisp-object-type],
328 [enable compile time checks for the Lisp_Object data type.
329 This is useful for development for catching certain types of bugs.])],
330 if test "${enableval}" != "no"; then
331 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
332 [Define this to enable compile time checks for the Lisp_Object data type.])
336 AC_ARG_ENABLE(profiling,
337 [AS_HELP_STRING([--enable-profiling],
338 [build emacs with profiling support.
339 This might not work on all platforms])],
340 [ac_enable_profiling="${enableval}"],[])
341 if test x$ac_enable_profiling != x ; then
342 PROFILING_CFLAGS="-DPROFILING=1 -pg"
346 AC_SUBST(PROFILING_CFLAGS)
348 AC_ARG_ENABLE(autodepend,
349 [AS_HELP_STRING([--enable-autodepend],
350 [automatically generate dependencies to .h-files.
351 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
353 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
355 #### Make srcdir absolute, if it isn't already. It's important to
356 #### avoid running the path through pwd unnecessarily, since pwd can
357 #### give you automounter prefixes, which can go away. We do all this
358 #### so Emacs can find its files when run uninstalled.
359 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
364 ## We may be able to use the $PWD environment variable to make this
365 ## absolute. But sometimes PWD is inaccurate.
366 ## Note: we used to use ${PWD} at the end instead of `pwd`,
367 ## but that tested only for a well-formed and valid PWD,
368 ## it did not object when PWD was well-formed and valid but just wrong.
369 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
373 srcdir="`(cd ${srcdir}; pwd)`"
376 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
379 ### Canonicalize the configuration name.
383 configuration=${host_alias-${build_alias-$host}}
385 dnl This used to use changequote, but, apart from `changequote is evil'
386 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
387 dnl the great gob of text. Thus it's not processed for possible expansion.
388 dnl Just make sure the brackets remain balanced.
390 dnl Since Emacs can't find matching pairs of quotes, boundaries are
391 dnl indicated by comments.
395 ### If you add support for a new configuration, add code to this
396 ### switch statement to recognize your configuration name and select
397 ### the appropriate operating system file.
399 ### You would hope that you could choose an s/*.h
400 ### file based on the operating system portion. However, it turns out
401 ### that each s/*.h file is pretty manufacturer-specific.
402 ### So we basically have to have a special case for each
403 ### configuration name.
405 ### As far as handling version numbers on operating systems is
406 ### concerned, make sure things will fail in a fixable way. If
407 ### /etc/MACHINES doesn't say anything about version numbers, be
408 ### prepared to handle anything reasonably. If version numbers
409 ### matter, be sure /etc/MACHINES says something about it.
412 case "${canonical}" in
414 ## GNU/Linux and similar ports
424 ## FreeBSD kernel + glibc based userland
439 ## Apple Darwin / Mac OS X
441 case "${canonical}" in
448 ## Use fink packages if available.
449 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
450 ## if test -d /sw/include && test -d /sw/lib; then
451 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
452 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
456 ## HP 9000 series 700 and 800, running HP/UX
460 hppa*-hp-hpux1[1-9]* )
462 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
466 rs6000-ibm-aix4.[23]* )
469 powerpc-ibm-aix4.[23]* )
472 rs6000-ibm-aix[56]* )
475 powerpc-ibm-aix[56]* )
479 ## Silicon Graphics machines
483 # Without defining _LANGUAGE_C, things get masked out in the headers
484 # so that, for instance, grepping for `free' in stdlib.h fails and
485 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
486 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
491 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
492 | x86_64-*-solaris2* | x86_64-*-sunos5*)
493 case "${canonical}" in
495 amd64-*-*|x86_64-*-*) ;;
499 case "${canonical}" in
500 *-sunos5.6* | *-solaris2.6* )
504 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
506 emacs_check_sunpro_c=yes
508 *-sunos5* | *-solaris* )
510 emacs_check_sunpro_c=yes
513 ## Watch out for a compiler that we know will not work.
514 case "${canonical}" in
515 *-solaris* | *-sunos5* )
516 if [ "x$CC" = x/usr/ucb/cc ]; then
517 ## /usr/ucb/cc doesn't work;
518 ## we should find some other compiler that does work.
526 ## Intel 386 machines where we don't care about the manufacturer.
528 case "${canonical}" in
529 *-cygwin ) opsys=cygwin ;;
530 *-darwin* ) opsys=darwin ;;
531 *-sysv4.2uw* ) opsys=unixware ;;
532 *-sysv5uw* ) opsys=unixware ;;
533 *-sysv5OpenUNIX* ) opsys=unixware ;;
534 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
543 ### If the code above didn't choose an operating system, just choose
544 ### an operating system based on the configuration name. You really
545 ### only want to use this when you have no idea what the right
546 ### operating system is; if you know what operating systems a machine
547 ### runs, it's cleaner to make it explicit in the case statement
549 if test x"${opsys}" = x; then
550 case "${canonical}" in
551 *-gnu* ) opsys=gnu ;;
561 if test $unported = yes; then
562 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
563 Check `etc/MACHINES' for recognized configuration names.])
567 #### Choose a compiler.
569 dnl Sets GCC=yes if using gcc.
573 if test x$GCC = xyes; then
574 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
576 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
579 # Initialize gnulib right after choosing the compiler.
582 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
583 # if -g3 works and the user does not specify CFLAGS.
584 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
585 if test "$ac_test_CFLAGS" != set; then
588 emacs_g3_CFLAGS='-g3';;
590 emacs_g3_CFLAGS='-g3 -O2';;
594 if test -n "$emacs_g3_CFLAGS"; then
595 emacs_save_CFLAGS=$CFLAGS
596 CFLAGS=$emacs_g3_CFLAGS
597 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
598 [emacs_cv_prog_cc_g3],
599 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
600 [emacs_cv_prog_cc_g3=yes],
601 [emacs_cv_prog_cc_g3=no])])
602 if test $emacs_cv_prog_cc_g3 = yes; then
603 CFLAGS=$emacs_g3_CFLAGS
605 CFLAGS=$emacs_save_CFLAGS
610 AC_ARG_ENABLE([gcc-warnings],
611 [AS_HELP_STRING([--enable-gcc-warnings],
612 [turn on lots of GCC warnings. This is intended for
613 developers, and may generate false alarms when used
614 with older or non-GNU development tools.])],
617 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
619 gl_gcc_warnings=$enableval],
623 AC_ARG_ENABLE(link-time-optimization,
624 [AS_HELP_STRING([--enable-link-time-optimization],
625 [build emacs with link-time optimization.
626 This is supported only for GCC since 4.5.0.])],
627 if test "${enableval}" != "no"; then
628 AC_MSG_CHECKING([whether link-time optimization is supported])
630 if test x$GCC = xyes; then
631 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
632 if test x$CPUS != x; then
638 CFLAGS="$CFLAGS $LTO"
639 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
640 [ac_lto_supported=yes], [ac_lto_supported=no])
643 AC_MSG_RESULT([$ac_lto_supported])
644 if test "$ac_lto_supported" = "yes"; then
645 CFLAGS="$CFLAGS $LTO"
649 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
650 # ------------------------------------------------
651 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
652 # Otherwise, run RUN-IF-NOT-FOUND.
653 AC_DEFUN([gl_GCC_VERSION_IFELSE],
657 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
660 # error "your version of gcc is older than $1.$2"
667 # When compiling with GCC, prefer -isystem to -I when including system
668 # include files, to avoid generating useless diagnostics for the files.
669 if test "$gl_gcc_warnings" != yes; then
674 # This, $nw, is the list of warnings we disable.
677 case $with_x_toolkit in
678 lucid | athena | motif)
679 # Old toolkits mishandle 'const'.
680 nw="$nw -Wwrite-strings"
683 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
686 AC_SUBST([WERROR_CFLAGS])
688 nw="$nw -Waggregate-return" # anachronistic
689 nw="$nw -Wlong-long" # C90 is anachronistic
690 nw="$nw -Wc++-compat" # We don't care about C++ compilers
691 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
692 nw="$nw -Wtraditional" # Warns on #elif which we use often
693 nw="$nw -Wcast-qual" # Too many warnings for now
694 nw="$nw -Wconversion" # Too many warnings for now
695 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
696 nw="$nw -Wsign-conversion" # Too many warnings for now
697 nw="$nw -Woverlength-strings" # Not a problem these days
698 nw="$nw -Wtraditional-conversion" # Too many warnings for now
699 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
700 nw="$nw -Wpadded" # Our structs are not padded
701 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
702 nw="$nw -Wlogical-op" # any use of fwrite provokes this
703 nw="$nw -Wformat-nonliteral" # we do this a lot
704 nw="$nw -Wvla" # warnings in gettext.h
705 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
706 nw="$nw -Wswitch-enum" # Too many warnings for now
707 nw="$nw -Wswitch-default" # Too many warnings for now
708 nw="$nw -Wfloat-equal" # warns about high-quality code
709 nw="$nw -Winline" # OK to ignore 'inline'
710 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
711 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
712 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
714 # Emacs doesn't care about shadowing; see
715 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
718 # The following lines should be removable at some point.
719 nw="$nw -Wstack-protector"
720 nw="$nw -Wstrict-overflow"
721 nw="$nw -Wsuggest-attribute=pure"
723 gl_MANYWARN_ALL_GCC([ws])
724 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
728 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
729 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
730 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
731 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
732 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
733 gl_WARN_ADD([-Wno-format-nonliteral])
735 # In spite of excluding -Wlogical-op above, it is enabled, as of
736 # gcc 4.5.0 20090517.
737 gl_WARN_ADD([-Wno-logical-op])
739 gl_WARN_ADD([-fdiagnostics-show-option])
740 gl_WARN_ADD([-funit-at-a-time])
742 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
743 AH_VERBATIM([FORTIFY_SOURCE],
744 [/* Enable compile-time and run-time bounds-checking, and some warnings,
745 without upsetting glibc 2.15+. */
746 #if defined __OPTIMIZE__ && __OPTIMIZE__
747 # define _FORTIFY_SOURCE 2
750 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
752 # We use a slightly smaller set of warning options for lib/.
753 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
755 nw="$nw -Wunused-macros"
757 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
758 AC_SUBST([GNULIB_WARN_CFLAGS])
763 dnl Some other nice autoconf tests.
764 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
767 dnl if test "x$RANLIB" = x; then
772 AC_PATH_PROG(INSTALL_INFO, install-info, :,
773 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
774 dnl Don't use GZIP, which is used by gzip for additional parameters.
775 AC_PATH_PROG(GZIP_PROG, gzip)
777 if test $opsys = gnu-linux; then
778 AC_PATH_PROG(PAXCTL, paxctl,,
779 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
780 if test "X$PAXCTL" != X; then
781 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
782 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
783 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
784 else AC_MSG_RESULT(no); PAXCTL=""; fi])
788 ## Need makeinfo >= 4.7 (?) to build the manuals.
789 AC_PATH_PROG(MAKEINFO, makeinfo, no)
790 dnl By this stage, configure has already checked for egrep and set EGREP,
791 dnl or exited with an error if no egrep was found.
792 if test "$MAKEINFO" != "no" && \
793 test x"`$MAKEINFO --version 2> /dev/null | $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'`" = x; then
797 ## Makeinfo is unusual. For a released Emacs, the manuals are
798 ## pre-built, and not deleted by the normal clean rules. makeinfo is
799 ## therefore in the category of "special tools" not normally required, which
800 ## configure does not have to check for (eg autoconf itself).
801 ## In a Bazaar checkout on the other hand, the manuals are not included.
802 ## So makeinfo is a requirement to build from Bazaar, and configure
803 ## should test for it as it does for any other build requirement.
804 ## We use the presence of $srcdir/info/emacs to distinguish a release,
805 ## with pre-built manuals, from a Bazaar checkout.
808 if test "$MAKEINFO" = "no"; then
810 if test "x${with_makeinfo}" = "xno"; then
812 elif test ! -e $srcdir/info/emacs; then
813 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
814 source tree does not seem to have pre-built manuals in the `info' directory.
815 Either install a suitable version of makeinfo, or re-run configure
816 with the `--without-makeinfo' option to build without the manuals.] )
819 AC_SUBST(HAVE_MAKEINFO)
821 dnl Just so that there is only a single place we need to edit.
827 dnl Add our options to ac_link now, after it is set up.
829 if test x$GCC = xyes; then
830 test "x$GCC_LINK_TEST_OPTIONS" != x && \
831 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
833 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
834 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
837 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
838 dnl If we can link with the flag, it shouldn't do any harm anyhow.
839 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
840 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
841 dnl if not built to support GNU ld.
843 late_LDFLAGS=$LDFLAGS
844 if test x$GCC = xyes; then
845 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
847 LDFLAGS="$LDFLAGS -znocombreloc"
850 AC_MSG_CHECKING([for -znocombreloc])
851 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
852 [AC_MSG_RESULT(yes)],
853 LDFLAGS=$late_LDFLAGS
857 dnl The function dump-emacs will not be defined and temacs will do
858 dnl (load "loadup") automatically unless told otherwise.
859 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
861 your-opsys-here) CANNOT_DUMP=yes ;;
864 test "$CANNOT_DUMP" = "yes" && \
865 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
867 AC_SUBST(CANNOT_DUMP)
872 # MSDOS uses unexcoff.o
873 # MSWindows uses unexw32.o
881 UNEXEC_OBJ=unexmacosx.o
884 UNEXEC_OBJ=unexhp9k800.o
887 # Use the Solaris dldump() function, called from unexsol.c, to dump
888 # emacs, instead of the generic ELF dump code found in unexelf.c.
889 # The resulting binary has a complete symbol table, and is better
890 # for debugging and other observability tools (debuggers, pstack, etc).
892 # If you encounter a problem using dldump(), please consider sending
893 # a message to the OpenSolaris tools-linking mailing list:
894 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
896 # It is likely that dldump() works with older Solaris too, but this has
897 # not been tested, so for now this change is for Solaris 10 or newer.
905 ## Let `ld' find image libs and similar things in /usr/local/lib.
906 ## The system compiler, GCC, has apparently been modified to not
907 ## look there, contrary to what a stock GCC would do.
908 ### It's not our place to do this. See bug#10313#17.
909 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
914 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
915 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
919 ### It's not our place to do this. See bug#10313#17.
920 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
925 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
926 ## otherwise Emacs dumps core on elf systems.
927 LD_SWITCH_SYSTEM="-Z"
930 AC_SUBST(LD_SWITCH_SYSTEM)
932 ac_link="$ac_link $LD_SWITCH_SYSTEM"
934 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
935 ## which has not been defined yet. When this was handled with cpp,
936 ## it was expanded to null when configure sourced the s/*.h file.
937 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
938 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
939 ## (or somesuch), but because it is supposed to go at the _front_
940 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
941 ## Compare with the gnu-linux case below, which added to the end
942 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
943 ## LD_SWITCH_SYSTEM_TEMACS.
946 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
953 AC_CHECK_DECL([__ELF__])
954 if test "$ac_cv_have_decl___ELF__" = "yes"; then
955 ## With ELF, make sure that all common symbols get allocated to in the
956 ## data section. Otherwise, the dump of temacs may miss variables in
957 ## the shared library that have been initialized. For example, with
958 ## GNU libc, __malloc_initialized would normally be resolved to the
959 ## shared library's .bss section, which is fatal.
960 if test "x$GCC" = "xyes"; then
961 C_SWITCH_MACHINE="-fno-common"
963 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
966 UNEXEC_OBJ=unexalpha.o
970 AC_SUBST(C_SWITCH_MACHINE)
975 ## Some programs in src produce warnings saying certain subprograms
976 ## are too complex and need a MAXMEM value greater than 2000 for
977 ## additional optimization. --nils@exp-math.uni-essen.de
978 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
979 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
980 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
981 ## It is redundant in glibc2, since we define _GNU_SOURCE.
982 AC_SUBST(C_SWITCH_SYSTEM)
987 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
988 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
990 freebsd) LIBS_SYSTEM="-lutil" ;;
992 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
994 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
996 ## Motif needs -lgen.
997 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
999 AC_SUBST(LIBS_SYSTEM)
1002 ### Make sure subsequent tests use flags consistent with the build flags.
1004 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1005 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1007 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1010 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1011 AC_DEFUN([AC_TYPE_SIZE_T])
1012 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1013 AC_DEFUN([AC_TYPE_UID_T])
1019 dnl Current possibilities handled by sed (aix4-2 -> aix,
1020 dnl gnu-linux -> gnu/linux, etc.):
1021 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1022 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1023 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1025 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1029 START_FILES='pre-crt0.o'
1032 ## Adding -lm confuses the dynamic linker, so omit it.
1034 START_FILES='pre-crt0.o'
1037 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1038 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1039 SYSTEM_TYPE=berkeley-unix
1041 gnu-linux | gnu-kfreebsd )
1042 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1043 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1045 hpux10-20 | hpux11 )
1047 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1049 dnl NB this may be adjusted below.
1051 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1052 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1053 SYSTEM_TYPE=berkeley-unix
1057 SYSTEM_TYPE=usg-unix-v
1063 AC_SUBST(START_FILES)
1064 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1065 [The type of system you are compiling for; sets `system-type'.])
1067 dnl Not all platforms use crtn.o files. Check if the current one does.
1070 for file in x $LIB_STANDARD $START_FILES; do
1072 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1076 if test "x$crt_files" != x; then
1078 ## If user specified a crt-dir, use that unconditionally.
1081 if test "X$CRT_DIR" = "X"; then
1083 CRT_DIR=/usr/lib # default
1085 case "$canonical" in
1086 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1087 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1088 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1089 ## For anything else (eg /usr/lib32), it is up the user to specify
1090 ## the location (bug#5655).
1091 ## Test for crtn.o, not just the directory, because sometimes the
1092 ## directory exists but does not have the relevant files (bug#1287).
1093 ## FIXME better to test for binary compatibility somehow.
1094 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1097 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1101 hpux10-20) CRT_DIR=/lib ;;
1104 test "x${GCC}" = xyes && crt_gcc=yes
1110 for file in $crt_files; do
1112 ## If we're using gcc, try to determine it automatically by asking
1113 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1114 ## system-dependent default from above.]
1115 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1117 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1120 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1125 dnl We expect all the files to be in a single directory, so after the
1126 dnl first there is no point asking gcc.
1129 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1132 test "x$crt_missing" = x || \
1133 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1134 Try using the --with-crt-dir option.])
1136 fi # crt_files != ""
1142 if test -f $CRT_DIR/crti.o; then
1144 test -f $CRT_DIR/crtn.o || \
1145 AC_MSG_ERROR([Required file not found: crtn.o])
1147 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1148 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1154 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1155 pre_PKG_CONFIG_LIBS=$LIBS
1157 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1159 dnl This function definition taken from Gnome 2.0
1160 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1161 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1162 dnl also defines GSTUFF_PKG_ERRORS on error
1163 AC_DEFUN([PKG_CHECK_MODULES], [
1166 if test "$PKG_CONFIG" = "no" ; then
1167 ifelse([$4], , [AC_MSG_ERROR([
1168 *** 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])
1170 PKG_CONFIG_MIN_VERSION=0.9.0
1171 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1172 AC_MSG_CHECKING(for $2)
1174 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1175 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1176 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1183 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1184 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1185 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1191 ## If we have a custom action on failure, don't print errors, but
1192 ## do set a variable so people can do so.
1193 $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1194 ifelse([$4], ,echo $$1_PKG_ERRORS,)
1200 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1201 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1205 if test $succeeded = yes; then
1206 ifelse([$3], , :, [$3])
1208 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])
1213 if test "${with_sound}" != "no"; then
1214 # Sound support for GNU/Linux and the free BSDs.
1215 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1216 have_sound_header=yes)
1217 # Emulation library used on NetBSD.
1218 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1222 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1223 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1224 if test $HAVE_ALSA = yes; then
1225 SAVE_CFLAGS="$CFLAGS"
1227 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1228 LIBS="$ALSA_LIBS $LIBS"
1229 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1230 emacs_alsa_normal=yes,
1231 emacs_alsa_normal=no)
1232 if test "$emacs_alsa_normal" != yes; then
1233 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1234 [[snd_lib_error_set_handler (0);]])],
1235 emacs_alsa_subdir=yes,
1236 emacs_alsa_subdir=no)
1237 if test "$emacs_alsa_subdir" != yes; then
1238 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1240 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1243 CFLAGS="$SAVE_CFLAGS"
1245 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1246 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1247 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1250 dnl Define HAVE_SOUND if we have sound support. We know it works and
1251 dnl compiles only on the specified platforms. For others, it
1252 dnl probably doesn't make sense to try.
1253 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1255 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1256 gnu-linux|freebsd|netbsd)
1257 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1262 AC_SUBST(CFLAGS_SOUND)
1265 dnl checks for header files
1266 AC_CHECK_HEADERS_ONCE(
1267 linux/version.h sys/systeminfo.h
1268 stdio_ext.h fcntl.h coff.h pty.h
1269 sys/vlimit.h sys/resource.h
1270 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1272 AC_MSG_CHECKING(if personality LINUX32 can be set)
1273 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1274 emacs_cv_personality_linux32=yes,
1275 emacs_cv_personality_linux32=no)
1276 AC_MSG_RESULT($emacs_cv_personality_linux32)
1278 if test $emacs_cv_personality_linux32 = yes; then
1279 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1280 [Define to 1 if personality LINUX32 can be set.])
1283 dnl On Solaris 8 there's a compilation warning for term.h because
1284 dnl it doesn't define `bool'.
1285 AC_CHECK_HEADERS(term.h, , , -)
1287 AC_CHECK_DECLS([sys_siglist])
1288 if test $ac_cv_have_decl_sys_siglist != yes; then
1289 # For Tru64, at least:
1290 AC_CHECK_DECLS([__sys_siglist])
1291 if test $ac_cv_have_decl___sys_siglist = yes; then
1292 AC_DEFINE(sys_siglist, __sys_siglist,
1293 [Define to any substitute for sys_siglist.])
1298 dnl Check for speed_t typedef.
1299 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1300 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1301 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1302 if test $emacs_cv_speed_t = yes; then
1303 AC_DEFINE(HAVE_SPEED_T, 1,
1304 [Define to 1 if `speed_t' is declared by <termios.h>.])
1307 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1308 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1309 #if HAVE_SYS_SOCKET_H
1310 #include <sys/socket.h>
1312 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1313 #if HAVE_SYS_SOCKET_H
1314 #include <sys/socket.h>
1316 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1317 #if HAVE_SYS_SOCKET_H
1318 #include <sys/socket.h>
1321 dnl checks for structure members
1322 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1323 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1324 struct ifreq.ifr_addr,
1325 struct ifreq.ifr_addr.sa_len], , ,
1326 [AC_INCLUDES_DEFAULT
1327 #if HAVE_SYS_SOCKET_H
1328 #include <sys/socket.h>
1334 dnl Check for endianness.
1335 dnl AC_C_BIGENDIAN is done by gnulib.
1337 dnl check for Make feature
1338 dnl AC_PROG_MAKE_SET is done by Automake.
1343 dnl check for GNU Make if we have GCC and autodepend is on.
1344 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1345 AC_MSG_CHECKING([whether we are using GNU Make])
1347 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1348 if test "x$testval" != x; then
1351 ac_enable_autodepend=no
1353 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1354 if test $HAVE_GNU_MAKE = yes; then
1355 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1356 SAVE_CFLAGS="$CFLAGS"
1357 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1358 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1359 CFLAGS="$SAVE_CFLAGS"
1360 test -f deps.d || ac_enable_autodepend=no
1362 AC_MSG_RESULT([$ac_enable_autodepend])
1364 if test $ac_enable_autodepend = yes; then
1365 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1366 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1367 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1368 deps_frag=autodeps.mk
1371 deps_frag=$srcdir/src/$deps_frag
1374 AC_SUBST_FILE(deps_frag)
1377 lisp_frag=$srcdir/src/lisp.mk
1378 AC_SUBST_FILE(lisp_frag)
1381 dnl checks for operating system services
1382 AC_SYS_LONG_FILE_NAMES
1384 #### Choose a window system.
1386 ## We leave window_system equal to none if
1387 ## we end up building without one. Any new window system should
1388 ## set window_system to an appropriate value and add objects to
1389 ## window-system-specific substs.
1393 if test "$no_x" != yes; then
1397 LD_SWITCH_X_SITE_RPATH=
1398 if test "${x_libraries}" != NONE; then
1399 if test -n "${x_libraries}"; then
1400 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1401 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1403 x_default_search_path=""
1404 x_search_path=${x_libraries}
1405 if test -z "${x_search_path}"; then
1406 x_search_path=/usr/lib
1408 for x_library in `echo ${x_search_path}: | \
1409 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1411 ${x_library}/X11/%L/%T/%N%C%S:\
1412 ${x_library}/X11/%l/%T/%N%C%S:\
1413 ${x_library}/X11/%T/%N%C%S:\
1414 ${x_library}/X11/%L/%T/%N%S:\
1415 ${x_library}/X11/%l/%T/%N%S:\
1416 ${x_library}/X11/%T/%N%S"
1417 if test x"${x_default_search_path}" = x; then
1418 x_default_search_path=${x_search_path}
1420 x_default_search_path="${x_search_path}:${x_default_search_path}"
1424 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1426 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1427 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1430 if test x"${x_includes}" = x; then
1431 bitmapdir=/usr/include/X11/bitmaps
1433 # accumulate include directories that have X11 bitmap subdirectories
1435 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1436 if test -d "${bmd}/X11/bitmaps"; then
1437 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1439 if test -d "${bmd}/bitmaps"; then
1440 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1443 if test ${bmd_acc} != "dummyval"; then
1444 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1451 tmp_CPPFLAGS="$CPPFLAGS"
1452 tmp_CFLAGS="$CFLAGS"
1453 CPPFLAGS="$CPPFLAGS -x objective-c"
1454 CFLAGS="$CFLAGS -x objective-c"
1455 TEMACS_LDFLAGS2="\${LDFLAGS}"
1457 if test "${with_ns}" != no; then
1458 if test "${opsys}" = darwin; then
1460 ns_appdir=`pwd`/nextstep/Emacs.app
1461 ns_appbindir=${ns_appdir}/Contents/MacOS
1462 ns_appresdir=${ns_appdir}/Contents/Resources
1463 ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base
1464 elif test -f $GNUSTEP_CONFIG_FILE; then
1466 ns_appdir=`pwd`/nextstep/Emacs.app
1467 ns_appbindir=${ns_appdir}
1468 ns_appresdir=${ns_appdir}/Resources
1469 ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base
1470 dnl FIXME sourcing this several times in subshells seems inefficient.
1471 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1472 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1473 dnl I seemed to need these as well with GNUstep-startup 0.25.
1474 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1475 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1476 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1477 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1478 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1479 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1480 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1481 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1482 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1486 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1487 dnl If they had chosen to either define it or not, we could have
1488 dnl just used AC_CHECK_DECL here.
1489 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1490 emacs_cv_objc_exceptions,
1491 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1492 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1496 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1497 if test $emacs_cv_objc_exceptions = yes; then
1498 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1499 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1500 [Define if GNUstep uses ObjC exceptions.])
1501 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1505 dnl This is only used while we test the NS headers, it gets reset below.
1506 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1508 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1509 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1510 files are missing or cannot be compiled.])])
1511 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1513 ns_have_nsinteger=yes,
1514 ns_have_nsinteger=no)
1515 if test $ns_have_nsinteger = yes; then
1516 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1519 AC_SUBST(TEMACS_LDFLAGS2)
1521 INSTALL_ARCH_INDEP_EXTRA=install-etc
1522 ns_self_contained=no
1526 if test "${HAVE_NS}" = yes; then
1527 if test "$with_toolkit_scroll_bars" = "no"; then
1528 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1531 window_system=nextstep
1532 # set up packaging dirs
1533 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1534 ns_self_contained=yes
1535 prefix=${ns_appresdir}
1536 exec_prefix=${ns_appbindir}
1537 dnl This one isn't really used, only archlibdir is.
1538 libexecdir="\${ns_appbindir}/libexec"
1539 archlibdir="\${ns_appbindir}/libexec"
1540 docdir="\${ns_appresdir}/etc"
1541 etcdir="\${ns_appresdir}/etc"
1542 dnl FIXME maybe set datarootdir instead.
1543 dnl That would also get applications, icons, man.
1544 infodir="\${ns_appresdir}/info"
1545 mandir="\${ns_appresdir}/man"
1546 lispdir="\${ns_appresdir}/lisp"
1547 leimdir="\${ns_appresdir}/leim"
1548 INSTALL_ARCH_INDEP_EXTRA=
1550 ns_frag=$srcdir/src/ns.mk
1551 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1553 CFLAGS="$tmp_CFLAGS"
1554 CPPFLAGS="$tmp_CPPFLAGS"
1555 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1556 AC_SUBST(ns_self_contained)
1558 AC_SUBST(NS_OBJC_OBJ)
1559 AC_SUBST(LIB_STANDARD)
1560 AC_SUBST_FILE(ns_frag)
1562 ## $window_system is now set to the window system we will
1570 case "${window_system}" in
1575 case "${with_x_toolkit}" in
1576 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1577 motif ) USE_X_TOOLKIT=MOTIF ;;
1579 term_header=gtkutil.h
1580 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1581 dnl USE_X_TOOLKIT is set.
1582 USE_X_TOOLKIT=none ;;
1583 gtk2 ) with_gtk2=yes
1584 term_header=gtkutil.h
1585 USE_X_TOOLKIT=none ;;
1586 gtk3 ) with_gtk3=yes
1587 term_header=gtkutil.h
1588 USE_X_TOOLKIT=none ;;
1589 no ) USE_X_TOOLKIT=none ;;
1590 dnl If user did not say whether to use a toolkit, make this decision later:
1591 dnl use the toolkit if we have gtk, or X11R5 or newer.
1592 * ) USE_X_TOOLKIT=maybe ;;
1596 term_header=nsterm.h
1600 if test -n "${term_header}"; then
1601 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1602 [Define to the header for the built-in window system.])
1605 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1606 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1607 if test "$HAVE_XSERVER" = true ||
1608 test -n "$DISPLAY" ||
1609 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1610 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1611 were found. You should install the relevant development files for X
1612 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1613 sure you have development files for image handling, i.e.
1614 tiff, gif, jpeg, png and xpm.
1615 If you are sure you want Emacs compiled without X window support, pass
1621 ### If we're using X11, we should use the X menu package.
1624 yes ) HAVE_MENUS=yes ;;
1627 # Does the opsystem file prohibit the use of the GNU malloc?
1628 # Assume not, until told otherwise.
1632 [whether malloc is Doug Lea style],
1633 [emacs_cv_var_doug_lea_malloc],
1636 [[#include <malloc.h>
1637 static void hook (void) {}]],
1638 [[malloc_set_state (malloc_get_state ());
1639 __after_morecore_hook = hook;
1640 __malloc_initialize_hook = hook;]])],
1641 [emacs_cv_var_doug_lea_malloc=yes],
1642 [emacs_cv_var_doug_lea_malloc=no])])
1643 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1646 dnl See comments in aix4-2.h about maybe using system malloc there.
1649 ## darwin ld insists on the use of malloc routines in the System framework.
1650 darwin|sol2-10) system_malloc=yes ;;
1653 if test "${system_malloc}" = "yes"; then
1654 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1657 (The GNU allocators don't work with this system configuration.)"
1661 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1662 VMLIMIT_OBJ=vm-limit.o
1664 AC_SUBST(GMALLOC_OBJ)
1665 AC_SUBST(VMLIMIT_OBJ)
1667 if test "$doug_lea_malloc" = "yes" ; then
1668 if test "$GNU_MALLOC" = yes ; then
1670 (Using Doug Lea's new malloc from the GNU C Library.)"
1672 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1673 [Define to 1 if you are using the GNU C Library.])
1675 ## Use mmap directly for allocating larger buffers.
1676 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1677 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1678 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1680 gnu*) REL_ALLOC=no ;;
1684 if test x"${REL_ALLOC}" = x; then
1685 REL_ALLOC=${GNU_MALLOC}
1688 use_mmap_for_buffers=no
1690 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1694 if test $use_mmap_for_buffers = yes; then
1695 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1699 LIBS="$LIBS_SYSTEM $LIBS"
1701 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1702 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1703 AC_CHECK_LIB(dnet, dnet_ntoa)
1704 dnl This causes -lresolv to get used in subsequent tests,
1705 dnl which causes failures on some systems such as HPUX 9.
1706 dnl AC_CHECK_LIB(resolv, gethostbyname)
1708 dnl FIXME replace main with a function we actually want from this library.
1709 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1711 dnl Check if pthreads is available.
1713 AC_CHECK_HEADERS_ONCE(pthread.h)
1714 if test "$ac_cv_header_pthread_h"; then
1715 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1716 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1717 dnl testing for pthread_self if Emacs uses gmalloc.c.
1718 if test "$GMALLOC_OBJ" = gmalloc.o; then
1719 emacs_pthread_function=pthread_atfork
1721 emacs_pthread_function=pthread_self
1723 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1725 if test "$HAVE_PTHREAD" = yes; then
1726 case "${canonical}" in
1728 *) LIB_PTHREAD="-lpthread"
1729 LIBS="$LIB_PTHREAD $LIBS" ;;
1731 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1733 AC_SUBST([LIB_PTHREAD])
1735 AC_CHECK_LIB(pthreads, cma_open)
1737 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1738 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1739 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1740 ## added to LIBS in configure would never contain the pthreads part,
1741 ## but the value used in Makefiles might. FIXME?
1743 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1744 ## be harmless on older versions of X where it happens to exist.
1745 test "$opsys" = "aix4-2" && \
1746 test $ac_cv_lib_pthreads_cma_open = yes && \
1747 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1749 dnl Check for need for bigtoc support on IBM AIX
1753 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1755 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1756 *) gdb_cv_bigtoc=-bbigtoc ;;
1759 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1760 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1765 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1766 # used for the tests that follow. We set them back to REAL_CFLAGS and
1767 # REAL_CPPFLAGS later on.
1769 REAL_CFLAGS="$CFLAGS"
1770 REAL_CPPFLAGS="$CPPFLAGS"
1772 if test "${HAVE_X11}" = "yes"; then
1773 DEFS="$C_SWITCH_X_SITE $DEFS"
1774 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1776 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1777 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1779 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1780 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1781 # but it's more convenient here to set LD_RUN_PATH since this
1782 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1783 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1784 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1788 if test "${opsys}" = "gnu-linux"; then
1789 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1790 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1791 [[XOpenDisplay ("foo");]])],
1792 [xgnu_linux_first_failure=no],
1793 [xgnu_linux_first_failure=yes])
1794 if test "${xgnu_linux_first_failure}" = "yes"; then
1795 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1796 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1797 OLD_CPPFLAGS="$CPPFLAGS"
1799 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1800 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1801 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1802 LIBS="$LIBS -b i486-linuxaout"
1803 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1804 [[XOpenDisplay ("foo");]])],
1805 [xgnu_linux_second_failure=no],
1806 [xgnu_linux_second_failure=yes])
1807 if test "${xgnu_linux_second_failure}" = "yes"; then
1808 # If we get the same failure with -b, there is no use adding -b.
1809 # So take it out. This plays safe.
1810 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1811 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1812 CPPFLAGS="$OLD_CPPFLAGS"
1823 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1824 # header files included from there.
1825 AC_MSG_CHECKING(for Xkb)
1826 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1827 #include <X11/XKBlib.h>]],
1828 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1829 emacs_xkb=yes, emacs_xkb=no)
1830 AC_MSG_RESULT($emacs_xkb)
1831 if test $emacs_xkb = yes; then
1832 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1835 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1836 XScreenNumberOfScreen)
1839 if test "${window_system}" = "x11"; then
1840 AC_MSG_CHECKING(X11 version 6)
1841 AC_CACHE_VAL(emacs_cv_x11_version_6,
1842 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1843 [[#if XlibSpecificationRelease < 6
1846 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1847 if test $emacs_cv_x11_version_6 = yes; then
1848 AC_MSG_RESULT(6 or newer)
1849 AC_DEFINE(HAVE_X11R6, 1,
1850 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1851 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1852 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1856 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1857 [Define if you have usable X11R6-style XIM support.])
1861 AC_MSG_RESULT(before 6)
1866 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1868 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1869 if test "${with_rsvg}" != "no"; then
1870 RSVG_REQUIRED=2.11.0
1871 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1873 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1874 AC_SUBST(RSVG_CFLAGS)
1877 if test $HAVE_RSVG = yes; then
1878 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1879 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1880 LIBS="$RSVG_LIBS $LIBS"
1886 if test "${HAVE_X11}" = "yes"; then
1887 if test "${with_imagemagick}" != "no"; then
1888 ## 6.2.8 is the earliest version known to work, but earlier versions
1889 ## might work - let us know if you find one.
1890 ## 6.0.7 does not work. See bug#7955.
1891 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1892 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1893 AC_SUBST(IMAGEMAGICK_CFLAGS)
1894 AC_SUBST(IMAGEMAGICK_LIBS)
1896 if test $HAVE_IMAGEMAGICK = yes; then
1897 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1898 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1899 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1900 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1910 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1913 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1915 dnl Checks for libraries.
1916 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1917 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1918 AC_MSG_ERROR($GTK_PKG_ERRORS)
1920 if test "$pkg_check_gtk" = "yes"; then
1921 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1922 GTK_OBJ=emacsgtkfixed.o
1923 term_header=gtkutil.h
1926 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1930 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1933 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1935 dnl Checks for libraries.
1936 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1937 if test "$pkg_check_gtk" = "no"; then
1938 if test "$USE_X_TOOLKIT" = "maybe" || test "$with_gtk" = "yes" || test "$with_gtk2" = "yes"; then
1939 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
1944 if test x"$pkg_check_gtk" = xyes; then
1946 AC_SUBST(GTK_CFLAGS)
1948 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1949 CFLAGS="$CFLAGS $GTK_CFLAGS"
1950 LIBS="$GTK_LIBS $LIBS"
1951 dnl Try to compile a simple GTK program.
1953 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1954 if test "${GTK_COMPILES}" != "yes"; then
1955 if test "$USE_X_TOOLKIT" != "maybe"; then
1956 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
1960 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1961 GTK_OBJ="gtkutil.o $GTK_OBJ"
1963 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1966 AC_MSG_WARN([[Your version of Gtk+ will have problems with
1967 closing open displays. This is no problem if you just use
1968 one display, but if you use more than one and close one of them
1978 if test "${HAVE_GTK}" = "yes"; then
1980 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1981 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
1982 if test "$with_toolkit_scroll_bars" != no; then
1983 with_toolkit_scroll_bars=yes
1986 dnl Check if we have the old file selection dialog declared and
1987 dnl in the link library. In 2.x it may be in the library,
1988 dnl but not declared if deprecated featured has been selected out.
1989 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1990 HAVE_GTK_FILE_SELECTION=no
1991 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1992 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1993 #include <gtk/gtk.h>])
1994 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1995 AC_CHECK_FUNCS(gtk_file_selection_new)
1999 dnl Check for functions introduced in 2.14 and later.
2000 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2001 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2002 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2003 gtk_orientable_set_orientation \
2004 gtk_window_set_has_resize_grip)
2006 term_header=gtkutil.h
2009 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2010 dnl other platforms.
2013 if test "${with_dbus}" = "yes"; then
2014 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2015 if test "$HAVE_DBUS" = yes; then
2016 LIBS="$LIBS $DBUS_LIBS"
2017 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2018 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2019 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2021 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2022 dbus_type_is_valid \
2023 dbus_validate_bus_name \
2024 dbus_validate_path \
2025 dbus_validate_interface \
2026 dbus_validate_member)
2032 dnl GSettings has been tested under GNU/Linux only.
2034 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2035 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2036 if test "$HAVE_GSETTINGS" = "yes"; then
2037 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2038 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2039 SETTINGS_LIBS="$GSETTINGS_LIBS"
2043 dnl GConf has been tested under GNU/Linux only.
2044 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2046 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2047 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2048 if test "$HAVE_GCONF" = yes; then
2049 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2050 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2051 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2052 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2056 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2057 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2058 if test "$HAVE_GOBJECT" = "yes"; then
2059 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2060 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2062 SAVE_CFLAGS="$CFLAGS"
2064 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2065 LIBS="$SETTINGS_LIBS $LIBS"
2066 AC_CHECK_FUNCS([g_type_init])
2067 CFLAGS="$SAVE_CFLAGS"
2070 AC_SUBST(SETTINGS_CFLAGS)
2071 AC_SUBST(SETTINGS_LIBS)
2074 dnl SELinux is available for GNU/Linux only.
2077 if test "${with_selinux}" = "yes"; then
2078 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2079 if test "$HAVE_LIBSELINUX" = yes; then
2080 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2081 LIBSELINUX_LIBS=-lselinux
2084 AC_SUBST(LIBSELINUX_LIBS)
2087 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2088 if test "${with_gnutls}" = "yes" ; then
2089 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2090 if test "${HAVE_GNUTLS}" = "yes"; then
2091 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2094 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2095 LIBS="$LIBGNUTLS_LIBS $LIBS"
2096 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2098 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2099 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2103 AC_SUBST(LIBGNUTLS_LIBS)
2104 AC_SUBST(LIBGNUTLS_CFLAGS)
2106 dnl Do not put whitespace before the #include statements below.
2107 dnl Older compilers (eg sunos4 cc) choke on it.
2110 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2111 if test "$with_xaw3d" != no; then
2112 AC_MSG_CHECKING(for xaw3d)
2113 AC_CACHE_VAL(emacs_cv_xaw3d,
2114 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2115 #include <X11/Intrinsic.h>
2116 #include <X11/Xaw3d/Simple.h>]],
2118 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2119 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2120 emacs_cv_xaw3d=no)])
2124 if test $emacs_cv_xaw3d = yes; then
2125 AC_MSG_RESULT([yes; using Lucid toolkit])
2129 AC_DEFINE(HAVE_XAW3D, 1,
2130 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2133 AC_MSG_CHECKING(for libXaw)
2134 AC_CACHE_VAL(emacs_cv_xaw,
2135 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2136 #include <X11/Intrinsic.h>
2137 #include <X11/Xaw/Simple.h>]],
2141 if test $emacs_cv_xaw = yes; then
2142 AC_MSG_RESULT([yes; using Lucid toolkit])
2145 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2146 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2148 AC_MSG_ERROR([No X toolkit could be found.
2149 If you are sure you want Emacs compiled without an X toolkit, pass
2151 to configure. Otherwise, install the development libraries for the toolkit
2152 that you want to use (e.g. Gtk+) and re-run configure.])
2157 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2160 if test "${USE_X_TOOLKIT}" != "none"; then
2161 AC_MSG_CHECKING(X11 toolkit version)
2162 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2163 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2164 [[#if XtSpecificationRelease < 6
2167 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2168 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2169 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2170 AC_MSG_RESULT(6 or newer)
2171 AC_DEFINE(HAVE_X11XTR6, 1,
2172 [Define to 1 if you have the X11R6 or newer version of Xt.])
2173 LIBXTR6="-lSM -lICE"
2175 ## Use libw.a along with X11R6 Xt.
2176 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2179 AC_MSG_RESULT(before 6)
2182 dnl If using toolkit, check whether libXmu.a exists.
2183 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2185 if test x$HAVE_X11XTR6 = xyes; then
2186 LIBS="-lXt -lSM -lICE $LIBS"
2190 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2191 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2192 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2196 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2197 dnl Why not just test for libxmu in the normal way?
2200 ## These systems don't supply Xmu.
2202 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2207 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2208 if test "${HAVE_X11}" = "yes"; then
2209 if test "${USE_X_TOOLKIT}" != "none"; then
2210 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2215 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2216 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2217 if test -d /usr/include/openmotif; then
2218 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2219 emacs_cv_openmotif=yes
2220 case "$canonical" in
2221 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2222 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2225 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2228 emacs_cv_openmotif=no
2230 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2231 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2232 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2235 Motif version prior to 2.1.
2237 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2238 if test $emacs_cv_motif_version_2_1 = yes; then
2239 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2240 if test x$emacs_cv_openmotif = xyes; then
2241 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2244 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2245 # We put this in CFLAGS temporarily to precede other -I options
2246 # that might be in CFLAGS temporarily.
2247 # We put this in CPPFLAGS where it precedes the other -I options.
2248 OLD_CPPFLAGS=$CPPFLAGS
2250 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2251 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2252 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2254 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2255 if test $emacs_cv_lesstif = yes; then
2256 # Make sure this -I option remains in CPPFLAGS after it is set
2257 # back to REAL_CPPFLAGS.
2258 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2259 # have those other -I options anyway. Ultimately, having this
2260 # directory ultimately in CPPFLAGS will be enough.
2261 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2262 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2265 CPPFLAGS=$OLD_CPPFLAGS
2268 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2269 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2272 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2273 dnl using Motif or Xaw3d is available, and unless
2274 dnl --with-toolkit-scroll-bars=no was specified.
2276 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2277 [Define to 1 if we should use toolkit scroll bars.])dnl
2278 USE_TOOLKIT_SCROLL_BARS=no
2279 if test "${with_toolkit_scroll_bars}" != "no"; then
2280 if test "${USE_X_TOOLKIT}" != "none"; then
2281 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2282 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2284 USE_TOOLKIT_SCROLL_BARS=yes
2285 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2286 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2287 USE_TOOLKIT_SCROLL_BARS=yes
2289 elif test "${HAVE_GTK}" = "yes"; then
2290 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2291 USE_TOOLKIT_SCROLL_BARS=yes
2292 elif test "${HAVE_NS}" = "yes"; then
2293 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2294 USE_TOOLKIT_SCROLL_BARS=yes
2298 dnl See if XIM is available.
2299 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2300 #include <X11/Xlib.h>
2301 #include <X11/Xresource.h>]],
2302 [[XIMProc callback;]])],
2304 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2307 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2309 if test "${with_xim}" != "no"; then
2310 AC_DEFINE(USE_XIM, 1,
2311 [Define to 1 if we should use XIM, if it is available.])
2315 if test "${HAVE_XIM}" != "no"; then
2317 if test "$GCC" = yes; then
2318 CFLAGS="$CFLAGS --pedantic-errors"
2320 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2321 #include <X11/Xlib.h>
2322 #include <X11/Xresource.h>]],
2328 XPointer *client_data;
2330 /* If we're not using GCC, it's probably not XFree86, and this is
2331 probably right, but we can't use something like --pedantic-errors. */
2332 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2333 char*, XIMProc, XPointer*);
2335 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2337 [emacs_cv_arg6_star=yes])
2338 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2339 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2340 either XPointer or XPointer*.])dnl
2341 if test "$emacs_cv_arg6_star" = yes; then
2342 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2344 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2349 ### Start of font-backend (under any platform) section.
2350 # (nothing here yet -- this is a placeholder)
2351 ### End of font-backend (under any platform) section.
2353 ### Start of font-backend (under X11) section.
2354 if test "${HAVE_X11}" = "yes"; then
2355 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2357 ## Use -lXft if available, unless `--with-xft=no'.
2359 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2362 if test "x${with_xft}" != "xno"; then
2364 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2365 ## Because xftfont.c uses XRenderQueryExtension, we also
2366 ## need to link to -lXrender.
2368 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2369 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2370 OLD_CPPFLAGS="$CPPFLAGS"
2371 OLD_CFLAGS="$CFLAGS"
2373 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2374 CFLAGS="$CFLAGS $XFT_CFLAGS"
2375 XFT_LIBS="-lXrender $XFT_LIBS"
2376 LIBS="$XFT_LIBS $LIBS"
2377 AC_CHECK_HEADER(X11/Xft/Xft.h,
2378 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2380 if test "${HAVE_XFT}" = "yes"; then
2381 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2383 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2385 CPPFLAGS="$OLD_CPPFLAGS"
2386 CFLAGS="$OLD_CFLAGS"
2388 fi # "${HAVE_XFT}" = "yes"
2389 fi # "$HAVE_XFT" != no
2390 fi # "x${with_xft}" != "xno"
2392 ## We used to allow building with FreeType and without Xft.
2393 ## However, the ftx font backend driver is not in good shape.
2394 if test "$HAVE_XFT" != "yes"; then
2395 dnl For the "Does Emacs use" message at the end.
2399 dnl Strict linkers fail with
2400 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2401 dnl if -lfreetype is not specified.
2402 dnl The following is needed to set FREETYPE_LIBS.
2403 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2406 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2410 if test "${HAVE_FREETYPE}" = "yes"; then
2411 AC_DEFINE(HAVE_FREETYPE, 1,
2412 [Define to 1 if using the freetype and fontconfig libraries.])
2413 if test "${with_libotf}" != "no"; then
2414 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2416 if test "$HAVE_LIBOTF" = "yes"; then
2417 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2418 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2419 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2420 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2421 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2422 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2423 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2427 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2428 dnl Does the new font backend require it, or can it work without it?
2432 if test "${HAVE_LIBOTF}" = yes; then
2433 if test "${with_m17n_flt}" != "no"; then
2434 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2435 if test "$HAVE_M17N_FLT" = "yes"; then
2436 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2447 ### End of font-backend (under X11) section.
2449 AC_SUBST(FREETYPE_CFLAGS)
2450 AC_SUBST(FREETYPE_LIBS)
2451 AC_SUBST(FONTCONFIG_CFLAGS)
2452 AC_SUBST(FONTCONFIG_LIBS)
2453 AC_SUBST(LIBOTF_CFLAGS)
2454 AC_SUBST(LIBOTF_LIBS)
2455 AC_SUBST(M17N_FLT_CFLAGS)
2456 AC_SUBST(M17N_FLT_LIBS)
2458 ### Use -lXpm if available, unless `--with-xpm=no'.
2461 if test "${HAVE_X11}" = "yes"; then
2462 if test "${with_xpm}" != "no"; then
2463 AC_CHECK_HEADER(X11/xpm.h,
2464 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2465 if test "${HAVE_XPM}" = "yes"; then
2466 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2467 AC_EGREP_CPP(no_return_alloc_pixels,
2468 [#include "X11/xpm.h"
2469 #ifndef XpmReturnAllocPixels
2470 no_return_alloc_pixels
2472 ], HAVE_XPM=no, HAVE_XPM=yes)
2474 if test "${HAVE_XPM}" = "yes"; then
2482 if test "${HAVE_XPM}" = "yes"; then
2483 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2489 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2492 if test "${HAVE_X11}" = "yes"; then
2493 if test "${with_jpeg}" != "no"; then
2494 dnl Checking for jpeglib.h can lose because of a redefinition of
2496 AC_CHECK_HEADER(jerror.h,
2497 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2500 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2501 if test "${HAVE_JPEG}" = "yes"; then
2502 AC_DEFINE(HAVE_JPEG)
2503 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2504 [#include <jpeglib.h>
2505 version=JPEG_LIB_VERSION
2507 [AC_DEFINE(HAVE_JPEG)],
2508 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2511 if test "${HAVE_JPEG}" = "yes"; then
2517 ### Use -lpng if available, unless `--with-png=no'.
2520 if test "${HAVE_X11}" = "yes"; then
2521 if test "${with_png}" != "no"; then
2522 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2523 # in /usr/include/libpng.
2524 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2525 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2526 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2530 if test "${HAVE_PNG}" = "yes"; then
2531 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2532 LIBPNG="-lpng -lz -lm"
2534 AC_CHECK_DECL(png_longjmp,
2536 [AC_DEFINE(PNG_DEPSTRUCT, [],
2537 [Define to empty to suppress deprecation warnings when building
2538 with --enable-gcc-warnings and with libpng versions before 1.5,
2539 which lack png_longjmp.])],
2540 [[#ifdef HAVE_LIBPNG_PNG_H
2541 # include <libpng/png.h>
2550 ### Use -ltiff if available, unless `--with-tiff=no'.
2553 if test "${HAVE_X11}" = "yes"; then
2554 if test "${with_tiff}" != "no"; then
2555 AC_CHECK_HEADER(tiffio.h,
2557 # At least one tiff package requires the jpeg library.
2558 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2559 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2562 if test "${HAVE_TIFF}" = "yes"; then
2563 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2564 dnl FIXME -lz -lm, as per libpng?
2570 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2573 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2574 AC_CHECK_HEADER(gif_lib.h,
2575 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2576 # Earlier versions can crash Emacs.
2577 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2579 if test "$HAVE_GIF" = yes; then
2581 elif test "$HAVE_GIF" = maybe; then
2582 # If gif_lib.h but no libgif, try libungif.
2583 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2584 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2587 if test "${HAVE_GIF}" = "yes"; then
2588 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2593 dnl Check for required libraries.
2594 if test "${HAVE_X11}" = "yes"; then
2597 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2598 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2599 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2600 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2601 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2602 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2603 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2604 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2605 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2606 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2608 if test "X${MISSING}" != X; then
2609 AC_MSG_ERROR([The following required libraries were not found:
2611 Maybe some development libraries/packages are missing?
2612 If you don't want to link with them give
2614 as options to configure])
2618 ### Use -lgpm if available, unless `--with-gpm=no'.
2621 if test "${with_gpm}" != "no"; then
2622 AC_CHECK_HEADER(gpm.h,
2623 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2625 if test "${HAVE_GPM}" = "yes"; then
2626 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2632 dnl Check for malloc/malloc.h on darwin
2633 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2636 ### Use NeXTstep API to implement GUI.
2637 if test "${HAVE_NS}" = "yes"; then
2638 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2639 if test "${NS_IMPL_COCOA}" = "yes"; then
2640 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2642 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2643 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2644 # See also .m.o rule in Makefile.in */
2645 # FIXME: are all these flags really needed? Document here why. */
2646 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2647 ## Extra CFLAGS applied to src/*.m files.
2648 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
2650 # We also have mouse menus.
2656 ### Use session management (-lSM -lICE) if available
2659 if test "${HAVE_X11}" = "yes"; then
2660 AC_CHECK_HEADER(X11/SM/SMlib.h,
2661 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2663 if test "${HAVE_X_SM}" = "yes"; then
2664 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2668 *) LIBS="$LIBXSM $LIBS" ;;
2674 ### Use libxml (-lxml2) if available
2676 if test "${with_xml2}" != "no"; then
2677 ### I'm not sure what the version number should be, so I just guessed.
2678 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2679 if test "${HAVE_LIBXML2}" = "yes"; then
2680 LIBS="$LIBXML2_LIBS $LIBS"
2681 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2682 if test "${HAVE_LIBXML2}" = "yes"; then
2683 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2690 AC_SUBST(LIBXML2_LIBS)
2691 AC_SUBST(LIBXML2_CFLAGS)
2693 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2694 AC_CACHE_CHECK(whether netdb declares h_errno,
2695 emacs_cv_netdb_declares_h_errno,
2696 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2697 [[return h_errno;]])],
2698 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2699 if test $emacs_cv_netdb_declares_h_errno = yes; then
2700 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2703 # sqrt and other floating-point functions such as fmod and frexp
2704 # are found in -lm on most systems.
2705 AC_CHECK_LIB(m, sqrt)
2707 # Check for mail-locking functions in a "mail" library. Probably this should
2708 # have the same check as for liblockfile below.
2709 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2710 if test $have_mail = yes; then
2712 LIBS="$LIBS_MAIL $LIBS"
2713 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2717 dnl Debian, at least:
2718 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2719 if test $have_lockfile = yes; then
2720 LIBS_MAIL=-llockfile
2721 LIBS="$LIBS_MAIL $LIBS"
2722 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2724 # If we have the shared liblockfile, assume we must use it for mail
2725 # locking (e.g. Debian). If we couldn't link against liblockfile
2726 # (no liblockfile.a installed), ensure that we don't need to.
2727 dnl This works for files generally, not just executables.
2728 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2729 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2730 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2731 if test $ac_cv_prog_liblockfile = yes; then
2732 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2733 This probably means that movemail could lose mail.
2734 There may be a `development' package to install containing liblockfile.])
2737 AC_CHECK_HEADERS_ONCE(maillock.h)
2740 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2741 ## interlock access to the mail spool. The alternative is a lock file named
2742 ## /usr/spool/mail/$USER.lock.
2745 aix4-2) mail_lock="lockf" ;;
2747 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2749 ## On GNU/Linux systems, both methods are used by various mail programs.
2750 ## I assume most people are using newer mailers that have heard of flock.
2751 ## Change this if you need to.
2752 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2753 ## configure gets the right answers, and that means *NOT* using flock.
2754 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2755 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2756 ## Debian maintainer hasn't provided a clean fix for Emacs.
2757 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2758 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2759 ## correct logic. -- fx
2760 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2761 ## liblockfile is a Free Software replacement for libmail, used on
2762 ## Debian systems and elsewhere. -rfr.
2765 if test $have_mail = yes || test $have_lockfile = yes; then
2766 test $ac_cv_header_maillock_h = yes && mail_lock=no
2772 case "$mail_lock" in
2773 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2775 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2777 *) BLESSMAIL_TARGET="need-blessmail" ;;
2779 AC_SUBST(BLESSMAIL_TARGET)
2782 AC_CHECK_FUNCS(gethostname \
2783 closedir getrusage get_current_dir_name \
2785 fpathconf select euidaccess getpagesize setlocale \
2786 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2787 __fpending strsignal setitimer \
2788 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2789 gai_strerror mkstemp getline getdelim fsync sync \
2790 difftime posix_memalign \
2791 getpwent endpwent getgrent endgrent \
2793 cfmakeraw cfsetspeed copysign __executable_start)
2795 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2796 if test $opsys = unixware; then
2797 dnl In case some other test ends up checking for getwd.
2798 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2800 AC_CHECK_FUNCS(getwd)
2803 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2804 ## has a broken `rint' in some library versions including math library
2805 ## version number A.09.05.
2806 ## You can fix the math library by installing patch number PHSS_4630.
2807 ## But we can fix it more reliably for Emacs by just not using rint.
2808 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2811 *) AC_CHECK_FUNCS(random rint) ;;
2814 dnl Cannot use AC_CHECK_FUNCS
2815 AC_CACHE_CHECK([for __builtin_unwind_init],
2816 emacs_cv_func___builtin_unwind_init,
2817 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2818 emacs_cv_func___builtin_unwind_init=yes,
2819 emacs_cv_func___builtin_unwind_init=no)])
2820 if test $emacs_cv_func___builtin_unwind_init = yes; then
2821 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2822 [Define to 1 if you have the `__builtin_unwind_init' function.])
2825 AC_CHECK_HEADERS_ONCE(sys/un.h)
2832 AC_CHECK_FUNCS(grantpt)
2834 # PTY-related GNU extensions.
2835 AC_CHECK_FUNCS(getpt posix_openpt)
2837 # Check this now, so that we will NOT find the above functions in ncurses.
2838 # That is because we have not set up to link ncurses in lib-src.
2839 # It's better to believe a function is not available
2840 # than to expect to find it in ncurses.
2841 # Also we need tputs and friends to be able to build at all.
2842 AC_MSG_CHECKING([for library containing tputs])
2843 # Run a test program that contains a call to tputs, a call that is
2844 # never executed. This tests whether a pre-'main' dynamic linker
2845 # works with the library. It's too much trouble to actually call
2846 # tputs in the test program, due to portability hassles. When
2847 # cross-compiling, assume the test program will run if it links.
2848 AC_DEFUN([tputs_link_source], [
2850 [[extern void tputs (const char *, int, int (*)(int));
2851 int main (int argc, char **argv)
2854 tputs (argv[0], 0, 0);
2858 # Maybe curses should be tried earlier?
2859 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2860 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2862 if test -z "$tputs_library"; then
2866 LIBS_TERMCAP=-l$tputs_library
2868 LIBS="$LIBS_TERMCAP $LIBS"
2870 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2871 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2873 if test "X$msg" != Xno; then
2877 AC_MSG_RESULT([$msg])
2878 if test "X$msg" = Xno; then
2879 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2880 The following libraries were tried (in order):
2881 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2882 Please try installing whichever of these libraries is most appropriate
2883 for your system, together with its header files.
2884 For example, a libncurses-dev(el) or similar package.])
2887 ## Use termcap instead of terminfo?
2888 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2890 ## FIXME? In the cases below where we unconditionally set
2891 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2892 ## if that was found above to have tputs.
2893 ## Should we use the gnu* logic everywhere?
2895 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2896 ## The ncurses library has been moved out of the System framework in
2897 ## Mac OS X 10.2. So if configure detects it, set the command-line
2898 ## option to use it.
2899 darwin) LIBS_TERMCAP="-lncurses" ;;
2901 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2904 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2905 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2906 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2907 [[#if __FreeBSD_version < 400000
2910 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2912 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2914 if test $emacs_cv_freebsd_terminfo = yes; then
2915 LIBS_TERMCAP="-lncurses"
2918 LIBS_TERMCAP="-ltermcap"
2923 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
2925 LIBS_TERMCAP="-ltermcap"
2929 openbsd) LIBS_TERMCAP="-lncurses" ;;
2931 ## hpux: Make sure we get select from libc rather than from libcurses
2932 ## because libcurses on HPUX 10.10 has a broken version of select.
2933 ## We used to use -lc -lcurses, but this may be cleaner.
2934 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
2935 # set that way, now it uses the default). Isn't this a contradiction?
2936 hpux*) LIBS_TERMCAP="-ltermcap" ;;
2940 TERMCAP_OBJ=tparam.o
2941 if test $TERMINFO = yes; then
2942 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
2943 TERMCAP_OBJ=terminfo.o
2945 AC_SUBST(LIBS_TERMCAP)
2946 AC_SUBST(TERMCAP_OBJ)
2949 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2950 # On Darwin, res_init appears not to be useful: see bug#562 and
2951 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
2954 if test $opsys != darwin; then
2956 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2957 #include <arpa/nameser.h>
2958 #include <resolv.h>]],
2959 [[return res_init();]])],
2960 have_res_init=yes, have_res_init=no)
2961 if test "$have_res_init" = no; then
2963 LIBS="$LIBS -lresolv"
2964 AC_MSG_CHECKING(for res_init with -lresolv)
2965 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2966 #include <arpa/nameser.h>
2967 #include <resolv.h>]],
2968 [[return res_init();]])],
2969 have_res_init=yes, have_res_init=no)
2970 AC_MSG_RESULT($have_res_init)
2971 if test "$have_res_init" = yes ; then
2977 if test "$have_res_init" = yes; then
2978 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2982 # Do we need the Hesiod library to provide the support routines?
2983 dnl FIXME? Should we be skipping this on Darwin too?
2985 if test "$with_hesiod" != no ; then
2986 # Don't set $LIBS here -- see comments above. FIXME which comments?
2987 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2988 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2989 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2990 if test "$resolv" = yes ; then
2995 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2996 hesiod=yes, :, $RESOLVLIB)])
2998 if test x"$hesiod" = xyes; then
2999 AC_DEFINE(HAVE_LIBHESIOD, 1,
3000 [Define to 1 if you have the hesiod library (-lhesiod).])
3006 # Do we need libresolv (due to res_init or Hesiod)?
3007 if test "$resolv" = yes && test $opsys != darwin; then
3008 AC_DEFINE(HAVE_LIBRESOLV, 1,
3009 [Define to 1 if you have the resolv library (-lresolv).])
3016 # These tell us which Kerberos-related libraries to use.
3023 if test "${with_kerberos}" != no; then
3024 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3025 if test $have_com_err = yes; then
3026 COM_ERRLIB=-lcom_err
3027 LIBS="$COM_ERRLIB $LIBS"
3028 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3030 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3031 if test $have_crypto = yes; then
3033 LIBS="$CRYPTOLIB $LIBS"
3034 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3036 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3037 if test $have_k5crypto = yes; then
3038 CRYPTOLIB=-lk5crypto
3039 LIBS="$CRYPTOLIB $LIBS"
3040 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3042 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3043 if test $have_krb5=yes; then
3045 LIBS="$KRB5LIB $LIBS"
3046 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3048 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3049 if test "${with_kerberos5}" = no; then
3050 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3051 if test $have_des425 = yes; then
3053 LIBS="$DESLIB $LIBS"
3054 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3056 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3057 if test $have_des = yes; then
3059 LIBS="$DESLIB $LIBS"
3060 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3063 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3064 if test $have_krb4 = yes; then
3066 LIBS="$KRB4LIB $LIBS"
3067 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3069 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3070 if test $have_krb = yes; then
3072 LIBS="$KRB4LIB $LIBS"
3073 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3078 if test "${with_kerberos5}" != no; then
3079 AC_CHECK_HEADERS(krb5.h,
3080 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3081 [#include <krb5.h>])])
3083 AC_CHECK_HEADERS(des.h,,
3084 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3085 [AC_CHECK_HEADERS(kerberos/des.h)])])
3086 AC_CHECK_HEADERS(krb.h,,
3087 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3088 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3090 AC_CHECK_HEADERS(com_err.h)
3093 AC_SUBST(COM_ERRLIB)
3099 AC_CHECK_FUNCS_ONCE(tzset)
3100 AC_MSG_CHECKING(whether localtime caches TZ)
3101 AC_CACHE_VAL(emacs_cv_localtime_cache,
3102 [if test x$ac_cv_func_tzset = xyes; then
3103 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3104 char TZ_GMT0[] = "TZ=GMT0";
3105 char TZ_PST8[] = "TZ=PST8";
3108 time_t now = time ((time_t *) 0);
3109 int hour_GMT0, hour_unset;
3110 if (putenv (TZ_GMT0) != 0)
3112 hour_GMT0 = localtime (&now)->tm_hour;
3114 hour_unset = localtime (&now)->tm_hour;
3115 if (putenv (TZ_PST8) != 0)
3117 if (localtime (&now)->tm_hour == hour_GMT0)
3120 if (localtime (&now)->tm_hour != hour_unset)
3123 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3124 [# If we have tzset, assume the worst when cross-compiling.
3125 emacs_cv_localtime_cache=yes])
3127 # If we lack tzset, report that localtime does not cache TZ,
3128 # since we can't invalidate the cache if we don't have tzset.
3129 emacs_cv_localtime_cache=no
3131 AC_MSG_RESULT($emacs_cv_localtime_cache)
3132 if test $emacs_cv_localtime_cache = yes; then
3133 AC_DEFINE(LOCALTIME_CACHE, 1,
3134 [Define to 1 if localtime caches TZ.])
3138 AC_CHECK_FUNC(socket, , ok_so_far=no)
3139 if test $ok_so_far = yes; then
3140 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3142 if test $ok_so_far = yes; then
3143 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3145 if test $ok_so_far = yes; then
3146 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3147 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3148 [Define to 1 if you have inet sockets.])
3151 if test -f /usr/lpp/X11/bin/smt.exp; then
3152 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3153 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3156 AC_MSG_CHECKING(whether system supports dynamic ptys)
3157 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3159 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3166 AC_CHECK_FUNCS(snprintf)
3168 dnl Adapted from Haible's version.
3169 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3170 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3171 [[char* cs = nl_langinfo(CODESET);]])],
3172 emacs_cv_langinfo_codeset=yes,
3173 emacs_cv_langinfo_codeset=no)
3175 if test $emacs_cv_langinfo_codeset = yes; then
3176 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3177 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3182 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3183 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3184 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3185 if test "$emacs_cv_c_restrict_arr" = yes; then
3186 AC_DEFINE(__restrict_arr, __restrict,
3187 [Define to compiler's equivalent of C99 restrict keyword in array
3188 declarations. Define as empty for no equivalent.])
3191 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3192 dnl how the tty code is related to POSIX and/or other versions of termios.
3193 dnl The following looks like a useful start.
3195 dnl AC_SYS_POSIX_TERMIOS
3196 dnl if test $ac_cv_sys_posix_termios = yes; then
3197 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3198 dnl and macros for terminal control.])
3199 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3202 dnl Turned on June 1996 supposing nobody will mind it.
3203 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3204 in the full name stands for the login id.])
3206 dnl Every platform that uses configure (ie every non-MS platform)
3207 dnl supports this. There is a create-lockfiles option you can
3208 dnl customize if you do not want the lock files to be written.
3209 dnl So it is not clear that this #define still needs to exist.
3210 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3211 so that Emacs can tell instantly when you try to modify a file that
3212 someone else has modified in his/her Emacs.])
3214 dnl Everybody supports this, except MS.
3215 dnl Seems like the kind of thing we should be testing for, though.
3216 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3217 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3219 dnl Everybody supports this, except MS-DOS.
3220 dnl Seems like the kind of thing we should be testing for, though.
3221 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3222 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3223 4.2-compatible sockets.])
3225 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3227 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3228 a null file, or a data sink.])
3230 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3232 dnl Everybody supports this, except MS-DOS.
3233 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3235 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3238 AC_DEFINE(DIRECTORY_SEP, ['/'],
3239 [Character that separates directories in a file name.])
3241 dnl Only used on MS platforms.
3242 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3244 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3245 [Returns true if character is a device separator.])
3247 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3248 [Returns true if character is a directory separator.])
3250 dnl On MS, this also accepts IS_DEVICE_SEP.
3251 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3252 [Returns true if character is any form of separator.])
3255 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3259 dnl Unfortunately without libXmu we cannot support EditRes.
3260 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3261 AC_DEFINE(NO_EDITRES, 1)
3266 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3267 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3268 AC_DEFINE(NO_EDITRES, 1)
3274 irix6-5 | sol2* | unixware )
3275 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3276 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3277 dnl need the constant to dimension an array. So wire in the appropriate
3279 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3283 emacs_broken_SIGIO=no
3286 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3287 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3288 hpux* | irix6-5 | openbsd | sol2* | unixware )
3289 emacs_broken_SIGIO=yes
3293 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3294 dnl the way this system works, libc functions that return malloced
3295 dnl memory use the libc malloc implementation. Calling xfree or
3296 dnl xrealloc on the results of such functions results in a crash.
3298 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3299 dnl but that does not currently work on this system.
3301 dnl It is possible to completely override the malloc implementation on
3302 dnl AIX, but that involves putting the malloc functions in a shared
3303 dnl library and setting the MALLOCTYPE environment variable to point to
3304 dnl that shared library.
3306 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3307 dnl to avoid a crash just use the Emacs implementation for that function.
3309 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3310 dnl of this file, so that we do not check for get_current_dir_name
3311 dnl on AIX. But that might be fragile if something else ends
3312 dnl up testing for get_current_dir_name as a dependency.
3313 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3314 get_current_dir_name should not be used.])
3318 dnl Circumvent a bug in FreeBSD. In the following sequence of
3319 dnl writes/reads on a PTY, read(2) returns bogus data:
3321 dnl write(2) 1022 bytes
3322 dnl write(2) 954 bytes, get EAGAIN
3323 dnl read(2) 1024 bytes in process_read_output
3324 dnl read(2) 11 bytes in process_read_output
3326 dnl That is, read(2) returns more bytes than have ever been written
3327 dnl successfully. The 1033 bytes read are the 1022 bytes written
3328 dnl successfully after processing (for example with CRs added if the
3329 dnl terminal is set up that way which it is here). The same bytes will
3330 dnl be seen again in a later read(2), without the CRs.
3331 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3332 work around an issue when reading from a PTY.])
3338 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3339 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3344 darwin | freebsd | netbsd | openbsd )
3345 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3346 close a pty to make it a controlling terminal (it is already a
3347 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3351 dnl FIXME Surely we can test for this rather than hard-code it.
3353 netbsd | openbsd) sound_device="/dev/audio" ;;
3354 *) sound_device="/dev/dsp" ;;
3358 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3359 [Name of the default sound device.])
3362 dnl Emacs can read input using SIGIO and buffering characters itself,
3363 dnl or using CBREAK mode and making C-g cause SIGINT.
3364 dnl The choice is controlled by the variable interrupt_input.
3366 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3368 dnl Emacs uses the presence of the USABLE_SIGIO macro
3369 dnl to indicate whether or not signal-driven I/O is possible. It uses
3370 dnl INTERRUPT_INPUT to decide whether to use it by default.
3372 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3373 dnl CBREAK mode has two disadvantages
3374 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3375 dnl I hear that in system V this problem does not exist.
3376 dnl 2) Control-G causes output to be discarded.
3377 dnl I do not know whether this can be fixed in system V.
3379 dnl Another method of doing input is planned but not implemented.
3380 dnl It would have Emacs fork off a separate process
3381 dnl to read the input and send it to the true Emacs process
3384 darwin | gnu-linux | gnu-kfreebsd )
3385 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3390 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3391 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3392 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3393 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3394 dnl taking float or double parameters.
3396 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3397 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3398 file defines `NeedWidePrototypes' as `NO'.])
3403 dnl Used in process.c, this must be a loop, even if it only runs once.
3404 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3405 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3406 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3407 dnl trying suffixes 0-16.
3408 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3409 first PTY, if PTYs are supported.])
3410 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3411 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3412 end of a PTY, if non-standard.])
3413 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3414 end of a PTY, if non-standard.])
3418 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3419 dnl You allocate a pty by opening /dev/ptc to get the master side.
3420 dnl To get the name of the slave side, you just ttyname() the master side.
3421 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3422 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3426 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3427 dnl multi-line AC_DEFINEs are hard. :(
3428 AC_DEFINE(PTY_OPEN, [ do { int dummy; sigset_t blocked, procmask; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, &procmask); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; pthread_sigmask (SIG_SETMASK, &procmask, 0); if (fd >= 0) emacs_close (dummy); } while (0)])
3429 AC_DEFINE(PTY_NAME_SPRINTF, [])
3430 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3433 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3435 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3436 dnl Not used, because PTY_ITERATION is defined.
3437 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3438 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3439 dnl But we don't have to block SIGCHLD because it is blocked in the
3440 dnl implementation of grantpt.
3441 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3442 AC_DEFINE(PTY_NAME_SPRINTF, [])
3443 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3447 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3450 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3452 if test "x$ac_cv_func_grantpt" = xyes; then
3453 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3454 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3455 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3456 dnl to prevent sigchld_handler from intercepting the child's death.
3457 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3458 dnl if HAVE_POSIX_OPENPT
3459 if test "x$ac_cv_func_posix_openpt" = xyes; then
3460 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3461 AC_DEFINE(PTY_NAME_SPRINTF, [])
3463 elif test "x$ac_cv_func_getpt" = xyes; then
3464 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3465 AC_DEFINE(PTY_NAME_SPRINTF, [])
3467 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3470 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3475 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3476 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3477 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3481 dnl It looks like this cannot be right, because it is not a loop.
3482 dnl However, process.c actually does this:
3488 dnl which presumably makes it OK, since irix == sgi (?).
3489 dnl FIXME it seems like this special treatment is unnecessary?
3490 dnl Why can't irix use a single-trip loop like eg cygwin?
3491 AC_DEFINE(PTY_ITERATION, [])
3492 dnl Not used, because PTY_ITERATION is defined.
3493 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3494 AC_DEFINE(PTY_OPEN, [ { struct sigaction ocstat, cstat; struct stat stb; char * name; sigemptyset(&cstat.sa_mask); cstat.sa_handler = SIG_DFL; cstat.sa_flags = 0; sigaction(SIGCLD, &cstat, &ocstat); name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); sigaction(SIGCLD, &ocstat, (struct sigaction *)0); if (name == 0) return -1; if (fd < 0) return -1; if (fstat (fd, &stb) < 0) return -1; strcpy (pty_name, name); }])
3495 dnl No need to get the pty name at all.
3496 AC_DEFINE(PTY_NAME_SPRINTF, [])
3497 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3498 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3502 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3503 dnl from intercepting that death. If any child but grantpt's should die
3504 dnl within, it should be caught after sigrelse(2).
3505 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3509 dnl Comments are as per sol2*.
3510 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) fatal("could not grant slave pty"); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3517 dnl This change means that we don't loop through allocate_pty too
3518 dnl many times in the (rare) event of a failure.
3519 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3520 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3521 dnl Push various streams modules onto a PTY channel. Used in process.c.
3522 AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (xforkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (xforkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
3527 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3528 "typing" a signal character on the pty.])
3531 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3532 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3533 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3534 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3537 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3538 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3539 gnu-linux | gnu-kfreebsd )
3541 AC_MSG_CHECKING([for signals via characters])
3542 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3543 #include <linux/version.h>
3544 #if LINUX_VERSION_CODE < 0x20400
3545 # error "Linux version too old"
3547 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3549 AC_MSG_RESULT([$emacs_signals_via_chars])
3550 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3555 dnl Used in dispnew.c
3556 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3557 buffer of a stdio stream.])
3559 AC_MSG_CHECKING([whether we are using the GNU C library])
3560 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3561 #include <features.h>
3562 #ifndef __GNU_LIBRARY__
3563 # error "this is not the GNU C library"
3565 ]], [[]])], emacs_glibc=yes, emacs_glibc=no)
3566 AC_MSG_RESULT([$emacs_glibc])
3568 if test $emacs_glibc = yes; then
3570 emacs_pending_output=unknown
3573 gnu | gnu-linux | gnu-kfreebsd )
3574 AC_MSG_CHECKING([for style of pending output formalism])
3575 dnl In autoconf 2.67 and later, we could use a single test
3576 dnl since the preprocessed output is accessible in "conftest.i".
3577 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3579 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3580 # error "stdio definitions not found"
3582 ]], [[]])], emacs_pending_output=new, [])
3584 if test $emacs_pending_output = unknown; then
3586 gnu-linux | gnu-kfreebsd)
3587 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3590 # error "not using uclibc"
3592 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3597 AC_MSG_RESULT([$emacs_pending_output])
3599 case $emacs_pending_output in
3601 dnl New C libio names.
3602 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3603 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3606 dnl Using the uClibc library.
3607 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3608 [((FILE)->__bufpos - (FILE)->__bufstart)])
3611 dnl Old C++ iostream names.
3612 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3613 [((FILE)->_pptr - (FILE)->_pbase)])
3619 if test $emacs_pending_output = unknown; then
3620 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__bufp - (FILE)->__buffer)])
3623 else dnl !emacs_glibc
3626 cygwin | darwin | freebsd | netbsd | openbsd )
3627 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3631 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3635 dnl HAVE_STDIO_EXT_H && HAVE___FPENDING
3636 if test x$ac_cv_header_stdio_ext_h = xyes && \
3637 test x$ac_cv_func___fpending = xyes; then
3638 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [__fpending (FILE)])
3639 AC_DEFINE(DISPNEW_NEEDS_STDIO_EXT, 1,
3640 [Define if dispnew.c should include stdio_ext.h.])
3642 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_ptr - (FILE)->_base)])
3649 dnl Used in vm-limit.c
3650 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3651 dnl Used in lisp.h, emacs.c, mem-limits.h
3652 dnl NEWS.18 describes this as "a number which contains
3653 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3654 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3655 stored in a Lisp_Object.])
3656 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3660 dnl libc defines data_start.
3661 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3665 dnl The data segment on this machine always starts at address 0x40000000.
3666 AC_DEFINE(DATA_START, [0x40000000])
3667 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3670 AC_DEFINE(DATA_START, [0x10000000])
3671 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3676 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3677 AH_TEMPLATE(TAB3, [Undocumented.])
3680 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3682 gnu | freebsd | netbsd | openbsd )
3683 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3684 AC_DEFINE(TAB3, OXTABS)
3687 gnu-linux | gnu-kfreebsd )
3688 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3689 dnl library, we cannot get the maximum address for brk.
3690 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3694 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3696 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3700 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3701 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (0)],
3702 [Mark a secondary stack, like the register stack on the ia64.]), [])
3706 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3707 run_time_remap; for HPUX.])
3711 dnl Ulimit(UL_GMEMLIM) is busted...
3712 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3717 dnl These won't be used automatically yet. We also need to know, at least,
3718 dnl that the stack is continuous.
3719 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3720 registers relevant for conservative garbage collection in the jmp_buf.])
3722 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3723 conservative garbage collection is not known to work.])
3727 aix4-2 | hpux* | unixware)
3728 dnl Conservative garbage collection has not been tested, so for now
3729 dnl play it safe and stick with the old-fashioned way of marking.
3730 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3733 dnl Not all the architectures are tested, but there are Debian packages
3734 dnl for SCM and/or Guile on them, so the technique must work. See also
3735 dnl comments in alloc.c concerning setjmp and gcc.
3736 dnl Fixme: it's probably safe to just use the GCC conditional below.
3737 gnu-linux | gnu-kfreebsd )
3738 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3739 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3740 || defined __alpha__ || defined __mips__ || defined __s390__ \
3741 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3742 || defined __ia64__ || defined __sh__
3745 # error "setjmp not known to work on this arch"
3747 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3748 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3753 if test x$GCC = xyes; then
3754 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3755 AC_DEFINE(GC_SETJMP_WORKS, 1)
3758 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3759 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3760 AC_DEFINE(GC_SETJMP_WORKS, 1)
3765 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3768 [[#include <setjmp.h>
3772 _longjmp (j, 1);]])],
3773 [emacs_cv_func__setjmp=yes],
3774 [emacs_cv_func__setjmp=no])])
3775 if test $emacs_cv_func__setjmp = no; then
3776 AC_DEFINE([_setjmp], [setjmp],
3777 [Define to setjmp if _setjmp and _longjmp do not work. See _longjmp.])
3778 AC_DEFINE([_longjmp], [longjmp],
3779 [Define to longjmp if _setjmp and _longjmp do not work.
3780 Because longjmp may alter signal masks, callers of _longjmp
3781 should not assume that it leaves signal masks alone.])
3786 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3787 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3788 dnl and this is all we need.
3789 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3796 dnl Used in xfaces.c.
3797 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3798 some systems, where it requires time.h.])
3803 dnl Define symbols to identify the version of Unix this is.
3804 dnl Define all the symbols that apply correctly.
3805 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3806 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3807 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3808 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3809 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3810 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3811 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3817 dnl This symbol should be defined on AIX Version 3 ???????
3818 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3820 # error "_AIX not defined"
3822 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3826 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3830 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3831 AC_DEFINE(BSD4_2, [])
3832 AC_DEFINE(BSD_SYSTEM, [])
3833 dnl More specific than the above two. We cannot use __APPLE__ as this
3834 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3835 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3836 dnl distinguish OS X from pure Darwin.
3837 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3841 AC_DEFINE(BSD4_2, [])
3842 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3843 dnl Would not be needed with autoconf >= 2.67, where the
3844 dnl preprocessed output is accessible in "conftest.i".
3845 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3848 gnu | netbsd | openbsd )
3849 AC_DEFINE(BSD4_2, [])
3850 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3852 # error "BSD_SYSTEM not defined"
3854 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3857 gnu-linux | gnu-kfreebsd )
3859 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3865 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3871 AC_DEFINE(USG5_4, [])
3872 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3878 AC_DEFINE(USG5_4, [])
3879 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3885 AC_DEFINE(USG5_4, [])
3889 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
3892 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3893 emacs_cv_usable_FIONREAD=no
3898 [AC_LANG_PROGRAM([[#include <sys/types.h>
3899 #include <sys/ioctl.h>
3901 # include <sys/filio.h>
3904 [[int foo = ioctl (0, FIONREAD, &foo);]])],
3905 [emacs_cv_usable_FIONREAD=yes],
3906 [emacs_cv_usable_FIONREAD=no])
3909 if test $emacs_cv_usable_FIONREAD = yes; then
3910 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
3912 if test $emacs_broken_SIGIO = no; then
3913 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
3915 [AC_LANG_PROGRAM([[#include <fcntl.h>
3918 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
3919 [emacs_cv_usable_SIGIO=yes],
3920 [emacs_cv_usable_SIGIO=no])],
3921 [emacs_cv_usable_SIGIO=yes],
3922 [emacs_cv_usable_SIGIO=no])
3923 if test $emacs_cv_usable_SIGIO = yes; then
3924 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
3931 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3932 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3933 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3934 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3936 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3937 G_SLICE environment variable to "always-malloc" at startup, if
3942 dnl See comments in sysdep.c:sys_signal.
3943 dnl SA_RESTART resets the timeout of `select' on hpux11.
3944 dnl Defining BROKEN_SA_RESTART is not the same as undef'ing SA_RESTART.
3945 AC_DEFINE(BROKEN_SA_RESTART, 1, [Define if SA_RESTART should only
3946 be used in batch mode.])
3947 dnl It works to open the pty's tty in the parent (Emacs), then
3948 dnl close and reopen it in the child.
3949 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3950 works to open a pty's tty in the parent process, then close and
3951 reopen it in the child.])
3955 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3956 use VSUSP instead of VSWTCH.])
3957 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
3958 should not call setpgrp.])
3962 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
3967 # Set up the CFLAGS for real compilation, so we can substitute it.
3968 CFLAGS="$REAL_CFLAGS"
3969 CPPFLAGS="$REAL_CPPFLAGS"
3971 ## Hack to detect a buggy GCC version.
3972 if test "x$GCC" = xyes \
3973 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3974 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3975 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3976 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3979 version=$PACKAGE_VERSION
3981 ### Specify what sort of things we'll be editing into Makefile and config.h.
3982 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3984 AC_SUBST(configuration)
3989 AC_SUBST(exec_prefix)
3992 AC_SUBST(sharedstatedir)
3993 AC_SUBST(libexecdir)
3998 AC_SUBST(standardlisppath)
3999 AC_SUBST(locallisppath)
4001 AC_SUBST(x_default_search_path)
4003 AC_SUBST(archlibdir)
4008 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4009 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4010 ## end of LIBX_BASE, but nothing ever set it.
4011 AC_SUBST(LD_SWITCH_X_SITE)
4012 AC_SUBST(C_SWITCH_X_SITE)
4013 AC_SUBST(GNUSTEP_CFLAGS)
4015 ## Used in lwlib/Makefile.in.
4016 AC_SUBST(X_TOOLKIT_TYPE)
4018 AC_SUBST(ns_appbindir)
4019 AC_SUBST(ns_appresdir)
4021 AC_SUBST(GNU_OBJC_CFLAGS)
4022 AC_SUBST(OTHER_FILES)
4024 if test -n "${term_header}"; then
4025 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4026 [Define to the header for the built-in window system.])
4029 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4030 [Define to the canonical Emacs configuration name.])
4031 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4032 [Define to the options passed to configure.])
4033 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4034 define this to include extra configuration information.])
4039 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4040 AC_DEFINE(HAVE_X_WINDOWS, 1,
4041 [Define to 1 if you want to use the X window system.])
4043 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4045 if test "$HAVE_XFT" = "yes"; then
4046 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4047 elif test "$HAVE_FREETYPE" = "yes"; then
4048 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4058 if test "${USE_X_TOOLKIT}" != "none" ; then
4060 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4061 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4062 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4063 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4064 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4068 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4069 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4073 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4074 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4075 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4079 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4080 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4083 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4086 AC_SUBST(WIDGET_OBJ)
4089 case "$USE_X_TOOLKIT" in
4090 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4091 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4092 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4094 AC_SUBST(TOOLKIT_LIBW)
4096 if test "$USE_X_TOOLKIT" = "none"; then
4097 LIBXT_OTHER="\$(LIBXSM)"
4098 OLDXMENU_TARGET="really-oldXMenu"
4100 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4101 OLDXMENU_TARGET="really-lwlib"
4103 AC_SUBST(LIBXT_OTHER)
4105 ## The X Menu stuff is present in the X10 distribution, but missing
4106 ## from X11. If we have X10, just use the installed library;
4107 ## otherwise, use our own copy.
4108 if test "${HAVE_X11}" = "yes" ; then
4109 AC_DEFINE(HAVE_X11, 1,
4110 [Define to 1 if you want to use version 11 of X windows.
4111 Otherwise, Emacs expects to use version 10.])
4113 if test "$USE_X_TOOLKIT" = "none"; then
4114 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4116 OLDXMENU="\${lwlibdir}/liblw.a"
4118 LIBXMENU="\$(OLDXMENU)"
4119 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4120 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4122 ## For a syntactically valid Makefile; not actually used for anything.
4123 ## See comments in src/Makefile.in.
4125 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4126 if test "${HAVE_X_WINDOWS}" = "yes"; then
4135 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4142 AC_SUBST(OLDXMENU_TARGET)
4145 AC_SUBST(LIBX_OTHER)
4146 AC_SUBST(OLDXMENU_DEPS)
4148 if test "${HAVE_MENUS}" = "yes" ; then
4149 AC_DEFINE(HAVE_MENUS, 1,
4150 [Define to 1 if you have mouse menus.
4151 (This is automatic if you use X, but the option to specify it remains.)
4152 It is also defined with other window systems that support xmenu.c.])
4155 if test "${GNU_MALLOC}" = "yes" ; then
4156 AC_DEFINE(GNU_MALLOC, 1,
4157 [Define to 1 if you want to use the GNU memory allocator.])
4161 if test "${REL_ALLOC}" = "yes" ; then
4162 AC_DEFINE(REL_ALLOC, 1,
4163 [Define REL_ALLOC if you want to use the relocating allocator for
4166 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4168 AC_SUBST(RALLOC_OBJ)
4170 if test "$opsys" = "cygwin"; then
4171 CYGWIN_OBJ="sheap.o"
4172 ## Cygwin differs because of its unexec().
4174 POST_ALLOC_OBJ=lastfile.o
4177 PRE_ALLOC_OBJ=lastfile.o
4180 AC_SUBST(CYGWIN_OBJ)
4181 AC_SUBST(PRE_ALLOC_OBJ)
4182 AC_SUBST(POST_ALLOC_OBJ)
4184 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4185 # it temporarily reverts them to their pre-pkg-config values,
4186 # because gnulib needs to work with both src (which uses the
4187 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4188 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4189 # and it therefore needs to run in an environment where LIBS does not
4190 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4191 # for some package unrelated to lib-src.
4194 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4195 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4196 gl_ASSERT_NO_GNULIB_POSIXCHECK
4197 gl_ASSERT_NO_GNULIB_TESTS
4203 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4206 ## The -headerpad option tells ld (see man page) to leave room at the
4207 ## end of the header for adding load commands. Needed for dumping.
4208 ## 0x690 is the total size of 30 segment load commands (at 56
4209 ## each); under Cocoa 31 commands are required.
4210 if test "$HAVE_NS" = "yes"; then
4211 libs_nsgui="-framework AppKit"
4217 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4219 ## This is here because src/Makefile.in did some extra fiddling around
4220 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4221 ## #ifndef LD_SWITCH_SYSTEM
4222 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4223 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4224 ## not using gcc, darwin.
4225 ## Because this was done in src/Makefile.in, the resulting part of
4226 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4227 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4228 ## rather than LD_SWITCH_SYSTEM.
4229 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4230 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4233 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4234 ## find X at run-time.
4235 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4236 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4237 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4238 ## had different values in configure (in ac_link) and src/Makefile.in.
4239 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4240 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4242 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4245 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4246 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4249 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4255 ## gnu: GNU needs its own crt0.
4256 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4258 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4259 ## library search parth, i.e. it won't search /usr/lib for libc and
4260 ## friends. Using -nostartfiles instead avoids this problem, and
4261 ## will also work on earlier NetBSD releases.
4262 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4264 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4265 ## MkLinux/LinuxPPC needs this.
4266 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4268 case "$canonical" in
4269 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4275 if test "x$ORDINARY_LINK" = "xyes"; then
4278 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4280 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4281 ## freebsd, gnu-* not on powerpc*|s390x*.
4282 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4284 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4285 ## places that are difficult to figure out at make time. Fortunately,
4286 ## these same versions allow you to pass arbitrary flags on to the
4287 ## linker, so there is no reason not to use it as a linker.
4289 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4290 ## searching for libraries in its internal directories, so we have to
4291 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4292 LD_FIRSTFLAG="-nostdlib"
4295 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4296 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4298 AC_SUBST(LD_FIRSTFLAG)
4301 ## FIXME? The logic here is not precisely the same as that above.
4302 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4303 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4305 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4308 freebsd|netbsd|openbsd) LIB_GCC= ;;
4311 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4312 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4318 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4319 ## immediately undefine it again and redefine it to empty.
4320 ## Was the C_SWITCH_X_SITE part really necessary?
4321 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4327 ## Ask GCC where to find libgcc.a.
4328 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4333 ## Common for all window systems
4334 if test "$window_system" != "none"; then
4335 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4336 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4337 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4340 AC_SUBST(WINDOW_SYSTEM_OBJ)
4342 AH_TOP([/* GNU Emacs site configuration template file.
4344 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4345 Free Software Foundation, Inc.
4347 This file is part of GNU Emacs.
4349 GNU Emacs is free software: you can redistribute it and/or modify
4350 it under the terms of the GNU General Public License as published by
4351 the Free Software Foundation, either version 3 of the License, or
4352 (at your option) any later version.
4354 GNU Emacs is distributed in the hope that it will be useful,
4355 but WITHOUT ANY WARRANTY; without even the implied warranty of
4356 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4357 GNU General Public License for more details.
4359 You should have received a copy of the GNU General Public License
4360 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4363 /* No code in Emacs #includes config.h twice, but some bits of code
4364 intended to work with other packages as well (like gmalloc.c)
4365 think they can include it as many times as they like. */
4366 #ifndef EMACS_CONFIG_H
4367 #define EMACS_CONFIG_H
4370 AH_BOTTOM([#include <conf_post.h>
4372 #endif /* EMACS_CONFIG_H */
4381 #### Report on what we decided to do.
4382 #### Report GTK as a toolkit, even if it doesn't use Xt.
4383 #### It makes printing result more understandable as using GTK sets
4384 #### toolkit_scroll_bars to yes by default.
4385 if test "${HAVE_GTK}" = "yes"; then
4386 if test "${with_gtk3}" = "yes"; then
4394 Configured for \`${canonical}'.
4396 Where should the build process find the source code? ${srcdir}
4397 What compiler should emacs be built with? ${CC} ${CFLAGS}
4398 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4399 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4400 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4401 What window system should Emacs use? ${window_system}
4402 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4404 if test -n "${x_includes}"; then
4405 echo " Where do we find X Windows header files? ${x_includes}"
4407 echo " Where do we find X Windows header files? Standard dirs"
4409 if test -n "${x_libraries}"; then
4410 echo " Where do we find X Windows libraries? ${x_libraries}"
4412 echo " Where do we find X Windows libraries? Standard dirs"
4415 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4416 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4417 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4418 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4419 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4420 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4421 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4422 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4424 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4425 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4426 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4427 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4428 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4429 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4430 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4432 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4433 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4434 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4435 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4437 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4440 if test -n "${EMACSDATA}"; then
4441 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4443 if test -n "${EMACSDOC}"; then
4444 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4449 if test "$HAVE_NS" = "yes"; then
4451 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4452 The installed application will go to nextstep/Emacs.app and can be
4453 run or moved from there."
4454 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4455 echo "The application will be fully self-contained."
4457 echo "The lisp resources for the application will be installed under ${prefix}.
4458 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4459 to run if these resources are not installed."
4464 if test "${opsys}" = "cygwin"; then
4466 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4472 # Remove any trailing slashes in these variables.
4473 [test "${prefix}" != NONE &&
4474 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4475 test "${exec_prefix}" != NONE &&
4476 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4478 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4479 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4480 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4481 dnl (else you get "no `Makefile.am' found for any configure output").
4482 dnl This will work, but you get a config.status that is not quite right
4483 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4484 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4485 dnl it seems better to just live with the duplication.
4486 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile"
4488 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4489 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4490 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4493 dnl test/ is not present in release tarfiles.
4494 opt_makefile=test/automated/Makefile
4496 if test -f $srcdir/${opt_makefile}.in; then
4497 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4498 dnl Again, it's best not to use a variable. Though you can add
4499 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4500 AC_CONFIG_FILES([test/automated/Makefile])
4504 dnl admin/ may or may not be present.
4505 opt_makefile=admin/unidata/Makefile
4507 if test -f $srcdir/${opt_makefile}.in; then
4508 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4509 AC_CONFIG_FILES([admin/unidata/Makefile])
4513 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4515 AC_SUBST(SUBDIR_MAKEFILES_IN)
4517 dnl Make the necessary directories, if they don't exist.
4518 AC_CONFIG_COMMANDS([mkdirs], [
4519 for dir in etc lisp ; do
4520 test -d ${dir} || mkdir ${dir}
4524 dnl You might wonder (I did) why epaths.h is generated by running make,
4525 dnl rather than just letting configure generate it from epaths.in.
4526 dnl One reason is that the various paths are not fully expanded (see above);
4527 dnl eg gamedir=${prefix}/var/games/emacs.
4528 dnl Secondly, the GNU Coding standards require that one should be able
4529 dnl to run `make prefix=/some/where/else' and override the values set
4530 dnl by configure. This also explains the `move-if-change' test and
4531 dnl the use of force in the `epaths-force' rule in Makefile.in.
4532 AC_CONFIG_COMMANDS([epaths], [
4533 echo creating src/epaths.h
4534 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4535 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4537 AC_CONFIG_COMMANDS([gdbinit], [
4538 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4539 echo creating src/.gdbinit
4540 echo source $srcdir/src/.gdbinit > src/.gdbinit