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, 24.1.50)
26 AC_CONFIG_HEADER(src/config.h:src/config.in)
27 AC_CONFIG_SRCDIR(src/lisp.h)
28 AC_CONFIG_AUX_DIR(build-aux)
31 dnl Support for --program-prefix, --program-suffix and
32 dnl --program-transform-name options
35 dnl It is important that variables on the RHS not be expanded here,
36 dnl hence the single quotes. This is per the GNU coding standards, see
37 dnl (autoconf) Installation Directory Variables
38 dnl See also epaths.h below.
39 lispdir='${datadir}/emacs/${version}/lisp'
40 leimdir='${datadir}/emacs/${version}/leim'
41 standardlisppath='${lispdir}:${leimdir}'
42 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
43 '${datadir}/emacs/site-lisp'
44 lisppath='${locallisppath}:${standardlisppath}'
45 etcdir='${datadir}/emacs/${version}/etc'
46 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
47 docdir='${datadir}/emacs/${version}/etc'
48 gamedir='${localstatedir}/games/emacs'
50 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
51 dnl Create a new --with option that defaults to being disabled.
52 dnl NAME is the base name of the option. The shell variable with_NAME
53 dnl will be set to either the user's value (if the option is
54 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
55 dnl option is not specified). Note that the shell variable name is
56 dnl constructed as autoconf does, by replacing non-alphanumeric
57 dnl characters with "_".
58 dnl HELP-STRING is the help text for the option.
59 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
60 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
61 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
64 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
65 dnl Create a new --with option that defaults to being enabled. NAME
66 dnl is the base name of the option. The shell variable with_NAME
67 dnl will be set either to 'no' (for a plain --without-NAME) or to
68 dnl 'yes' (if the option is not specified). Note that the shell
69 dnl variable name is constructed as autoconf does, by replacing
70 dnl non-alphanumeric characters with "_".
71 dnl HELP-STRING is the help text for the option.
72 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
73 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
74 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=yes])dnl
77 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
78 if test "$with_pop" = yes; then
79 AC_DEFINE(MAIL_USE_POP)
81 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
83 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
84 if test "$with_kerberos" != no; then
88 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
90 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
91 if test "${with_kerberos5}" != no; then
92 if test "${with_kerberos}" = no; then
96 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
99 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
100 dnl FIXME hesiod support may not be present, so it seems like an error
101 dnl to define, or at least use, this unconditionally.
102 if test "$with_hesiod" != no; then
103 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
106 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
107 if test "$with_mmdf" != no; then
108 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
111 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
112 if test "$with_mail_unlink" != no; then
113 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
116 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
117 [string giving default POP mail host])],
118 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
120 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
122 OPTION_DEFAULT_ON([sync-input],[process async input synchronously])
123 if test "$with_sync_input" = yes; then
124 AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])
127 dnl FIXME currently it is not the last.
128 dnl This should be the last --with option, because --with-x is
129 dnl added later on when we find the path of X, and it's best to
130 dnl keep them together visually.
131 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
132 [use an X toolkit (KIT one of: yes or gtk, gtk3, lucid or athena, motif, no)])],
133 [ case "${withval}" in
134 y | ye | yes ) val=gtk ;;
136 l | lu | luc | luci | lucid ) val=lucid ;;
137 a | at | ath | athe | athen | athena ) val=athena ;;
138 m | mo | mot | moti | motif ) val=motif ;;
139 g | gt | gtk ) val=gtk ;;
142 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
143 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk' or
144 `gtk3'. `yes' and `gtk' are synonyms. `athena' and `lucid' are synonyms.])
150 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
151 if test "$with_wide_int" = yes; then
152 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
155 dnl _ON results in a '--without' option in the --help output, so
156 dnl the help text should refer to "don't compile", etc.
157 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
158 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
159 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
160 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
161 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
162 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
163 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
164 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
166 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
167 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
168 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
170 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
171 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
172 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
173 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
175 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
176 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
177 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
178 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
179 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
180 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
182 ## For the times when you want to build Emacs but don't have
183 ## a suitable makeinfo, and can live without the manuals.
184 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
185 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
187 ## Makefile.in needs the cache file name.
190 ## This is an option because I do not know if all info/man support
191 ## compressed files, nor how to test if they do so.
192 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
193 if test $with_compress_info = yes; then
200 AC_ARG_WITH([pkg-config-prog],dnl
201 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
202 [path to pkg-config for finding GTK and librsvg])])
203 if test "X${with_pkg_config_prog}" != X; then
204 if test "${with_pkg_config_prog}" != yes; then
205 PKG_CONFIG="${with_pkg_config_prog}"
210 AC_ARG_WITH([crt-dir],dnl
211 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
212 The default is /usr/lib, or /usr/lib64 on some platforms.])])
213 CRT_DIR="${with_crt_dir}"
215 AC_ARG_WITH(gameuser,dnl
216 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
217 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
218 && gameuser="${with_gameuser}"
219 test "X$gameuser" = X && gameuser=games
221 AC_ARG_WITH([gnustep-conf],dnl
222 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
223 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
224 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
225 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
226 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
228 AC_ARG_ENABLE(ns-self-contained,
229 [AS_HELP_STRING([--disable-ns-self-contained],
230 [disable self contained build under NeXTstep])],
231 EN_NS_SELF_CONTAINED=$enableval,
232 EN_NS_SELF_CONTAINED=yes)
234 AC_ARG_ENABLE(locallisppath,
235 [AS_HELP_STRING([--enable-locallisppath=PATH],
236 [directories Emacs should search for lisp files specific
238 if test "${enableval}" = "no"; then
240 elif test "${enableval}" != "yes"; then
241 locallisppath=${enableval}
244 AC_ARG_ENABLE(checking,
245 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
246 [enable expensive run-time checks. With LIST,
247 enable only specific categories of checks.
248 Categories are: all,yes,no.
249 Flags are: stringbytes, stringoverrun, stringfreelist,
250 xmallocoverrun, conslist, glyphs])],
251 [ac_checking_flags="${enableval}"],[])
252 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
253 for check in $ac_checking_flags
256 # these set all the flags to specific states
257 yes) ac_enable_checking=1 ;;
258 no) ac_enable_checking= ;
259 ac_gc_check_stringbytes= ;
260 ac_gc_check_string_overrun= ;
261 ac_gc_check_string_free_list= ;
262 ac_xmalloc_overrun= ;
263 ac_gc_check_cons_list= ;
265 all) ac_enable_checking=1 ;
266 ac_gc_check_stringbytes=1 ;
267 ac_gc_check_string_overrun=1 ;
268 ac_gc_check_string_free_list=1 ;
269 ac_xmalloc_overrun=1 ;
270 ac_gc_check_cons_list=1 ;
272 # these enable particular checks
273 stringbytes) ac_gc_check_stringbytes=1 ;;
274 stringoverrun) ac_gc_check_string_overrun=1 ;;
275 stringfreelist) ac_gc_check_string_free_list=1 ;;
276 xmallocoverrun) ac_xmalloc_overrun=1 ;;
277 conslist) ac_gc_check_cons_list=1 ;;
278 glyphs) ac_glyphs_debug=1 ;;
279 *) AC_MSG_ERROR(unknown check category $check) ;;
284 if test x$ac_enable_checking != x ; then
285 AC_DEFINE(ENABLE_CHECKING, 1,
286 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
288 if test x$ac_gc_check_stringbytes != x ; then
289 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
290 [Define this temporarily to hunt a bug. If defined, the size of
291 strings is redundantly recorded in sdata structures so that it can
292 be compared to the sizes recorded in Lisp strings.])
294 if test x$ac_gc_check_string_overrun != x ; then
295 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
296 [Define this to check for short string overrun.])
298 if test x$ac_gc_check_string_free_list != x ; then
299 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
300 [Define this to check the string free list.])
302 if test x$ac_xmalloc_overrun != x ; then
303 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
304 [Define this to check for malloc buffer overrun.])
306 if test x$ac_gc_check_cons_list != x ; then
307 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
308 [Define this to check for errors in cons list.])
310 if test x$ac_glyphs_debug != x ; then
311 AC_DEFINE(GLYPH_DEBUG, 1,
312 [Define this to enable glyphs debugging code.])
315 AC_ARG_ENABLE(check-lisp-object-type,
316 [AS_HELP_STRING([--enable-check-lisp-object-type],
317 [enable compile time checks for the Lisp_Object data type.
318 This is useful for development for catching certain types of bugs.])],
319 if test "${enableval}" != "no"; then
320 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
321 [Define this to enable compile time checks for the Lisp_Object data type.])
325 AC_ARG_ENABLE(profiling,
326 [AS_HELP_STRING([--enable-profiling],
327 [build emacs with profiling support.
328 This might not work on all platforms])],
329 [ac_enable_profiling="${enableval}"],[])
330 if test x$ac_enable_profiling != x ; then
331 PROFILING_CFLAGS="-DPROFILING=1 -pg"
335 AC_SUBST(PROFILING_CFLAGS)
337 AC_ARG_ENABLE(autodepend,
338 [AS_HELP_STRING([--enable-autodepend],
339 [automatically generate dependencies to .h-files.
340 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
342 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
344 #### Make srcdir absolute, if it isn't already. It's important to
345 #### avoid running the path through pwd unnecessarily, since pwd can
346 #### give you automounter prefixes, which can go away. We do all this
347 #### so Emacs can find its files when run uninstalled.
348 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
353 ## We may be able to use the $PWD environment variable to make this
354 ## absolute. But sometimes PWD is inaccurate.
355 ## Note: we used to use ${PWD} at the end instead of `pwd`,
356 ## but that tested only for a well-formed and valid PWD,
357 ## it did not object when PWD was well-formed and valid but just wrong.
358 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
362 srcdir="`(cd ${srcdir}; pwd)`"
365 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
368 ### Canonicalize the configuration name.
372 configuration=${host_alias-${build_alias-$host}}
374 dnl This used to use changequote, but, apart from `changequote is evil'
375 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
376 dnl the great gob of text. Thus it's not processed for possible expansion.
377 dnl Just make sure the brackets remain balanced.
379 dnl Since Emacs can't find matching pairs of quotes, boundaries are
380 dnl indicated by comments.
384 ### If you add support for a new configuration, add code to this
385 ### switch statement to recognize your configuration name and select
386 ### the appropriate operating system file.
388 ### You would hope that you could choose an s/*.h
389 ### file based on the operating system portion. However, it turns out
390 ### that each s/*.h file is pretty manufacturer-specific.
391 ### So we basically have to have a special case for each
392 ### configuration name.
394 ### As far as handling version numbers on operating systems is
395 ### concerned, make sure things will fail in a fixable way. If
396 ### /etc/MACHINES doesn't say anything about version numbers, be
397 ### prepared to handle anything reasonably. If version numbers
398 ### matter, be sure /etc/MACHINES says something about it.
401 case "${canonical}" in
403 ## GNU/Linux and similar ports
413 ## FreeBSD kernel + glibc based userland
428 ## Apple Darwin / Mac OS X
430 case "${canonical}" in
437 ## Use fink packages if available.
438 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
439 ## if test -d /sw/include && test -d /sw/lib; then
440 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
441 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
445 ## HP 9000 series 700 and 800, running HP/UX
449 hppa*-hp-hpux1[1-9]* )
451 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
455 rs6000-ibm-aix4.[23]* )
458 powerpc-ibm-aix4.[23]* )
461 rs6000-ibm-aix[56]* )
464 powerpc-ibm-aix[56]* )
468 ## Silicon Graphics machines
472 # Without defining _LANGUAGE_C, things get masked out in the headers
473 # so that, for instance, grepping for `free' in stdlib.h fails and
474 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
475 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
480 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
481 | x86_64-*-solaris2* | x86_64-*-sunos5*)
482 case "${canonical}" in
484 amd64-*-*|x86_64-*-*) ;;
488 case "${canonical}" in
489 *-sunos5.6* | *-solaris2.6* )
493 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
495 emacs_check_sunpro_c=yes
497 *-sunos5* | *-solaris* )
499 emacs_check_sunpro_c=yes
502 ## Watch out for a compiler that we know will not work.
503 case "${canonical}" in
504 *-solaris* | *-sunos5* )
505 if [ "x$CC" = x/usr/ucb/cc ]; then
506 ## /usr/ucb/cc doesn't work;
507 ## we should find some other compiler that does work.
515 ## Intel 386 machines where we don't care about the manufacturer.
517 case "${canonical}" in
518 *-cygwin ) opsys=cygwin ;;
519 *-darwin* ) opsys=darwin ;;
520 *-sysv4.2uw* ) opsys=unixware ;;
521 *-sysv5uw* ) opsys=unixware ;;
522 *-sysv5OpenUNIX* ) opsys=unixware ;;
523 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
532 ### If the code above didn't choose an operating system, just choose
533 ### an operating system based on the configuration name. You really
534 ### only want to use this when you have no idea what the right
535 ### operating system is; if you know what operating systems a machine
536 ### runs, it's cleaner to make it explicit in the case statement
538 if test x"${opsys}" = x; then
539 case "${canonical}" in
540 *-gnu* ) opsys=gnu ;;
550 if test $unported = yes; then
551 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
552 Check `etc/MACHINES' for recognized configuration names.])
556 #### Choose a compiler.
558 dnl Sets GCC=yes if using gcc.
562 if test x$GCC = xyes; then
563 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
565 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
568 # Initialize gnulib right after choosing the compiler.
571 AC_ARG_ENABLE([gcc-warnings],
572 [AS_HELP_STRING([--enable-gcc-warnings],
573 [turn on lots of GCC warnings. This is intended for
574 developers, and may generate false alarms when used
575 with older or non-GNU development tools.])],
578 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
580 gl_gcc_warnings=$enableval],
584 AC_ARG_ENABLE(link-time-optimization,
585 [AS_HELP_STRING([--enable-link-time-optimization],
586 [build emacs with link-time optimization.
587 This is supported only for GCC since 4.5.0.])],
588 if test "${enableval}" != "no"; then
589 AC_MSG_CHECKING([whether link-time optimization is supported])
591 if test x$GCC = xyes; then
592 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
593 if test x$CPUS != x; then
599 CFLAGS="$CFLAGS $LTO"
600 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
601 [ac_lto_supported=yes], [ac_lto_supported=no])
604 AC_MSG_RESULT([$ac_lto_supported])
605 if test "$ac_lto_supported" = "yes"; then
606 CFLAGS="$CFLAGS $LTO"
610 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
611 # ------------------------------------------------
612 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
613 # Otherwise, run RUN-IF-NOT-FOUND.
614 AC_DEFUN([gl_GCC_VERSION_IFELSE],
618 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
621 # error "your version of gcc is older than $1.$2"
628 # When compiling with GCC, prefer -isystem to -I when including system
629 # include files, to avoid generating useless diagnostics for the files.
630 if test "$gl_gcc_warnings" != yes; then
635 # This, $nw, is the list of warnings we disable.
638 case $with_x_toolkit in
639 lucid | athena | motif)
640 # Old toolkits mishandle 'const'.
641 nw="$nw -Wwrite-strings"
644 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
647 AC_SUBST([WERROR_CFLAGS])
649 nw="$nw -Waggregate-return" # anachronistic
650 nw="$nw -Wlong-long" # C90 is anachronistic
651 nw="$nw -Wc++-compat" # We don't care about C++ compilers
652 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
653 nw="$nw -Wtraditional" # Warns on #elif which we use often
654 nw="$nw -Wcast-qual" # Too many warnings for now
655 nw="$nw -Wconversion" # Too many warnings for now
656 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
657 nw="$nw -Wsign-conversion" # Too many warnings for now
658 nw="$nw -Woverlength-strings" # Not a problem these days
659 nw="$nw -Wtraditional-conversion" # Too many warnings for now
660 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
661 nw="$nw -Wpadded" # Our structs are not padded
662 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
663 nw="$nw -Wlogical-op" # any use of fwrite provokes this
664 nw="$nw -Wformat-nonliteral" # we do this a lot
665 nw="$nw -Wvla" # warnings in gettext.h
666 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
667 nw="$nw -Wswitch-enum" # Too many warnings for now
668 nw="$nw -Wswitch-default" # Too many warnings for now
669 nw="$nw -Wfloat-equal" # warns about high-quality code
670 nw="$nw -Winline" # OK to ignore 'inline'
671 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
672 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
674 # Emacs doesn't care about shadowing; see
675 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
678 # The following lines should be removable at some point.
679 nw="$nw -Wstack-protector"
680 nw="$nw -Wstrict-overflow"
681 nw="$nw -Wsuggest-attribute=pure"
683 gl_MANYWARN_ALL_GCC([ws])
684 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
688 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
689 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
690 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
691 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
692 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
693 gl_WARN_ADD([-Wno-format-nonliteral])
695 # In spite of excluding -Wlogical-op above, it is enabled, as of
696 # gcc 4.5.0 20090517.
697 gl_WARN_ADD([-Wno-logical-op])
699 gl_WARN_ADD([-fdiagnostics-show-option])
700 gl_WARN_ADD([-funit-at-a-time])
702 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
703 AC_DEFINE([_FORTIFY_SOURCE], [2],
704 [enable compile-time and run-time bounds-checking, and some warnings])
705 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
707 # We use a slightly smaller set of warning options for lib/.
708 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
710 nw="$nw -Wunused-macros"
712 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
713 AC_SUBST([GNULIB_WARN_CFLAGS])
718 dnl Some other nice autoconf tests.
719 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
722 dnl if test "x$RANLIB" = x; then
726 AC_PATH_PROG(INSTALL_INFO, install-info, :,
727 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
728 dnl Don't use GZIP, which is used by gzip for additional parameters.
729 AC_PATH_PROG(GZIP_PROG, gzip)
731 if test $opsys = gnu-linux; then
732 AC_PATH_PROG(PAXCTL, paxctl,,
733 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
736 ## Need makeinfo >= 4.7 (?) to build the manuals.
737 AC_PATH_PROG(MAKEINFO, makeinfo, no)
738 dnl By this stage, configure has already checked for egrep and set EGREP,
739 dnl or exited with an error if no egrep was found.
740 if test "$MAKEINFO" != "no" && \
741 test x"`$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
745 ## Makeinfo is unusual. For a released Emacs, the manuals are
746 ## pre-built, and not deleted by the normal clean rules. makeinfo is
747 ## therefore in the category of "special tools" not normally required, which
748 ## configure does not have to check for (eg autoconf itself).
749 ## In a Bazaar checkout on the other hand, the manuals are not included.
750 ## So makeinfo is a requirement to build from Bazaar, and configure
751 ## should test for it as it does for any other build requirement.
752 ## We use the presence of $srcdir/info/emacs to distinguish a release,
753 ## with pre-built manuals, from a Bazaar checkout.
756 if test "$MAKEINFO" = "no"; then
758 if test "x${with_makeinfo}" = "xno"; then
760 elif test ! -e $srcdir/info/emacs; then
761 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
762 source tree does not seem to have pre-built manuals in the `info' directory.
763 Either install a suitable version of makeinfo, or re-run configure
764 with the `--without-makeinfo' option to build without the manuals.] )
767 AC_SUBST(HAVE_MAKEINFO)
769 dnl Just so that there is only a single place we need to edit.
775 dnl Add our options to ac_link now, after it is set up.
777 if test x$GCC = xyes; then
778 test "x$GCC_LINK_TEST_OPTIONS" != x && \
779 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
781 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
782 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
785 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
786 dnl If we can link with the flag, it shouldn't do any harm anyhow.
787 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
788 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
789 dnl if not built to support GNU ld.
791 late_LDFLAGS=$LDFLAGS
792 if test x$GCC = xyes; then
793 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
795 LDFLAGS="$LDFLAGS -znocombreloc"
798 AC_MSG_CHECKING([for -znocombreloc])
799 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
800 [AC_MSG_RESULT(yes)],
801 LDFLAGS=$late_LDFLAGS
805 dnl The function dump-emacs will not be defined and temacs will do
806 dnl (load "loadup") automatically unless told otherwise.
807 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
809 your-opsys-here) CANNOT_DUMP=yes ;;
812 test "$CANNOT_DUMP" = "yes" && \
813 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
815 AC_SUBST(CANNOT_DUMP)
820 # MSDOS uses unexcoff.o
821 # MSWindows uses unexw32.o
829 UNEXEC_OBJ=unexmacosx.o
832 UNEXEC_OBJ=unexhp9k800.o
835 # Use the Solaris dldump() function, called from unexsol.c, to dump
836 # emacs, instead of the generic ELF dump code found in unexelf.c.
837 # The resulting binary has a complete symbol table, and is better
838 # for debugging and other observability tools (debuggers, pstack, etc).
840 # If you encounter a problem using dldump(), please consider sending
841 # a message to the OpenSolaris tools-linking mailing list:
842 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
844 # It is likely that dldump() works with older Solaris too, but this has
845 # not been tested, so for now this change is for Solaris 10 or newer.
853 ## Let `ld' find image libs and similar things in /usr/local/lib.
854 ## The system compiler, GCC, has apparently been modified to not
855 ## look there, contrary to what a stock GCC would do.
856 ### It's not our place to do this. See bug#10313#17.
857 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
862 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
863 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
867 ### It's not our place to do this. See bug#10313#17.
868 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
873 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
874 ## otherwise Emacs dumps core on elf systems.
875 LD_SWITCH_SYSTEM="-Z"
878 AC_SUBST(LD_SWITCH_SYSTEM)
880 ac_link="$ac_link $LD_SWITCH_SYSTEM"
882 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
883 ## which has not been defined yet. When this was handled with cpp,
884 ## it was expanded to null when configure sourced the s/*.h file.
885 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
886 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
887 ## (or somesuch), but because it is supposed to go at the _front_
888 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
889 ## Compare with the gnu-linux case below, which added to the end
890 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
891 ## LD_SWITCH_SYSTEM_TEMACS.
894 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
901 AC_CHECK_DECL([__ELF__])
902 if test "$ac_cv_have_decl___ELF__" = "yes"; then
903 ## With ELF, make sure that all common symbols get allocated to in the
904 ## data section. Otherwise, the dump of temacs may miss variables in
905 ## the shared library that have been initialized. For example, with
906 ## GNU libc, __malloc_initialized would normally be resolved to the
907 ## shared library's .bss section, which is fatal.
908 if test "x$GCC" = "xyes"; then
909 C_SWITCH_MACHINE="-fno-common"
911 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
914 UNEXEC_OBJ=unexalpha.o
918 AC_SUBST(C_SWITCH_MACHINE)
923 ## Some programs in src produce warnings saying certain subprograms
924 ## are too complex and need a MAXMEM value greater than 2000 for
925 ## additional optimization. --nils@exp-math.uni-essen.de
926 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
927 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
928 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
929 ## It is redundant in glibc2, since we define _GNU_SOURCE.
930 AC_SUBST(C_SWITCH_SYSTEM)
935 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
936 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
938 freebsd) LIBS_SYSTEM="-lutil" ;;
940 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
942 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
944 ## Motif needs -lgen.
945 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
947 AC_SUBST(LIBS_SYSTEM)
950 ### Make sure subsequent tests use flags consistent with the build flags.
952 if test x"${OVERRIDE_CPPFLAGS}" != x; then
953 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
955 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
958 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
959 AC_DEFUN([AC_TYPE_SIZE_T])
960 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
961 AC_DEFUN([AC_TYPE_UID_T])
967 dnl Current possibilities handled by sed (aix4-2 -> aix,
968 dnl gnu-linux -> gnu/linux, etc.):
969 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
970 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
971 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
973 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
977 START_FILES='pre-crt0.o'
980 ## Adding -lm confuses the dynamic linker, so omit it.
982 START_FILES='pre-crt0.o'
985 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
986 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
987 SYSTEM_TYPE=berkeley-unix
989 gnu-linux | gnu-kfreebsd )
990 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
991 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
995 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
997 dnl NB this may be adjusted below.
999 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1000 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1001 SYSTEM_TYPE=berkeley-unix
1005 SYSTEM_TYPE=usg-unix-v
1011 AC_SUBST(START_FILES)
1012 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1013 [The type of system you are compiling for; sets `system-type'.])
1015 dnl Not all platforms use crtn.o files. Check if the current one does.
1018 for file in x $LIB_STANDARD $START_FILES; do
1020 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1024 if test "x$crt_files" != x; then
1026 ## If user specified a crt-dir, use that unconditionally.
1029 if test "X$CRT_DIR" = "X"; then
1031 CRT_DIR=/usr/lib # default
1033 case "$canonical" in
1034 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1035 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1036 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1037 ## For anything else (eg /usr/lib32), it is up the user to specify
1038 ## the location (bug#5655).
1039 ## Test for crtn.o, not just the directory, because sometimes the
1040 ## directory exists but does not have the relevant files (bug#1287).
1041 ## FIXME better to test for binary compatibility somehow.
1042 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1045 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1049 hpux10-20) CRT_DIR=/lib ;;
1052 test "x${GCC}" = xyes && crt_gcc=yes
1058 for file in $crt_files; do
1060 ## If we're using gcc, try to determine it automatically by asking
1061 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1062 ## system-dependent default from above.]
1063 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1065 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1068 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1073 dnl We expect all the files to be in a single directory, so after the
1074 dnl first there is no point asking gcc.
1077 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1080 test "x$crt_missing" = x || \
1081 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1082 Try using the --with-crt-dir option.])
1084 fi # crt_files != ""
1090 if test -f $CRT_DIR/crti.o; then
1092 test -f $CRT_DIR/crtn.o || \
1093 AC_MSG_ERROR([Required file not found: crtn.o])
1095 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1096 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1102 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1103 pre_PKG_CONFIG_LIBS=$LIBS
1105 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1107 dnl This function definition taken from Gnome 2.0
1108 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1109 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1110 dnl also defines GSTUFF_PKG_ERRORS on error
1111 AC_DEFUN([PKG_CHECK_MODULES], [
1114 if test "$PKG_CONFIG" = "no" ; then
1115 ifelse([$4], , [AC_MSG_ERROR([
1116 *** 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])
1118 PKG_CONFIG_MIN_VERSION=0.9.0
1119 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1120 AC_MSG_CHECKING(for $2)
1122 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1123 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1124 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1131 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1132 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1133 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1139 ## If we have a custom action on failure, don't print errors, but
1140 ## do set a variable so people can do so.
1141 $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1142 ifelse([$4], ,echo $$1_PKG_ERRORS,)
1148 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1149 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1153 if test $succeeded = yes; then
1154 ifelse([$3], , :, [$3])
1156 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])
1161 if test "${with_sound}" != "no"; then
1162 # Sound support for GNU/Linux and the free BSDs.
1163 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1164 have_sound_header=yes)
1165 # Emulation library used on NetBSD.
1166 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1170 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1171 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1172 if test $HAVE_ALSA = yes; then
1173 SAVE_CFLAGS="$CFLAGS"
1175 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1176 LIBS="$ALSA_LIBS $LIBS"
1177 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1178 emacs_alsa_normal=yes,
1179 emacs_alsa_normal=no)
1180 if test "$emacs_alsa_normal" != yes; then
1181 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1182 [[snd_lib_error_set_handler (0);]])],
1183 emacs_alsa_subdir=yes,
1184 emacs_alsa_subdir=no)
1185 if test "$emacs_alsa_subdir" != yes; then
1186 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1188 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1191 CFLAGS="$SAVE_CFLAGS"
1193 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1194 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1195 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1198 dnl Define HAVE_SOUND if we have sound support. We know it works and
1199 dnl compiles only on the specified platforms. For others, it
1200 dnl probably doesn't make sense to try.
1201 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1203 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1204 gnu-linux|freebsd|netbsd)
1205 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1210 AC_SUBST(CFLAGS_SOUND)
1213 dnl checks for header files
1214 AC_CHECK_HEADERS_ONCE(
1215 linux/version.h sys/systeminfo.h
1216 stdio_ext.h fcntl.h coff.h pty.h
1217 sys/vlimit.h sys/resource.h
1218 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1220 AC_MSG_CHECKING(if personality LINUX32 can be set)
1221 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1222 emacs_cv_personality_linux32=yes,
1223 emacs_cv_personality_linux32=no)
1224 AC_MSG_RESULT($emacs_cv_personality_linux32)
1226 if test $emacs_cv_personality_linux32 = yes; then
1227 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1228 [Define to 1 if personality LINUX32 can be set.])
1231 dnl On Solaris 8 there's a compilation warning for term.h because
1232 dnl it doesn't define `bool'.
1233 AC_CHECK_HEADERS(term.h, , , -)
1235 AC_CHECK_DECLS([sys_siglist])
1236 if test $ac_cv_have_decl_sys_siglist != yes; then
1237 # For Tru64, at least:
1238 AC_CHECK_DECLS([__sys_siglist])
1239 if test $ac_cv_have_decl___sys_siglist = yes; then
1240 AC_DEFINE(sys_siglist, __sys_siglist,
1241 [Define to any substitute for sys_siglist.])
1246 dnl Check for speed_t typedef.
1247 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1248 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1249 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1250 if test $emacs_cv_speed_t = yes; then
1251 AC_DEFINE(HAVE_SPEED_T, 1,
1252 [Define to 1 if `speed_t' is declared by <termios.h>.])
1255 AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1256 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]],
1257 [[static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;]])],
1258 emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1259 HAVE_EXCEPTION=$emacs_cv_struct_exception
1260 dnl Define on Darwin so emacs symbols will not conflict with those
1261 dnl in the System framework. Otherwise -prebind will not work.
1262 if test $emacs_cv_struct_exception != yes || test $opsys = darwin; then
1263 AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])
1266 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1267 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1268 #if HAVE_SYS_SOCKET_H
1269 #include <sys/socket.h>
1271 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1272 #if HAVE_SYS_SOCKET_H
1273 #include <sys/socket.h>
1275 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1276 #if HAVE_SYS_SOCKET_H
1277 #include <sys/socket.h>
1280 dnl checks for structure members
1281 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1282 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1283 struct ifreq.ifr_addr,
1284 struct ifreq.ifr_addr.sa_len], , ,
1285 [AC_INCLUDES_DEFAULT
1286 #if HAVE_SYS_SOCKET_H
1287 #include <sys/socket.h>
1293 dnl Check for endianness.
1294 dnl AC_C_BIGENDIAN is done by gnulib.
1296 dnl check for Make feature
1297 dnl AC_PROG_MAKE_SET is done by Automake.
1302 dnl check for GNU Make if we have GCC and autodepend is on.
1303 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1304 AC_MSG_CHECKING([whether we are using GNU Make])
1306 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1307 if test "x$testval" != x; then
1310 ac_enable_autodepend=no
1312 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1313 if test $HAVE_GNU_MAKE = yes; then
1314 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1315 SAVE_CFLAGS="$CFLAGS"
1316 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1317 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1318 CFLAGS="$SAVE_CFLAGS"
1319 test -f deps.d || ac_enable_autodepend=no
1321 AC_MSG_RESULT([$ac_enable_autodepend])
1323 if test $ac_enable_autodepend = yes; then
1324 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1325 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1326 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1327 deps_frag=autodeps.mk
1330 deps_frag=$srcdir/src/$deps_frag
1333 AC_SUBST_FILE(deps_frag)
1336 lisp_frag=$srcdir/src/lisp.mk
1337 AC_SUBST_FILE(lisp_frag)
1340 dnl checks for operating system services
1341 AC_SYS_LONG_FILE_NAMES
1343 #### Choose a window system.
1346 if test "$no_x" = yes; then
1352 LD_SWITCH_X_SITE_RPATH=
1353 if test "${x_libraries}" != NONE; then
1354 if test -n "${x_libraries}"; then
1355 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1356 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1358 x_default_search_path=""
1359 x_search_path=${x_libraries}
1360 if test -z "${x_search_path}"; then
1361 x_search_path=/usr/lib
1363 for x_library in `echo ${x_search_path}: | \
1364 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1366 ${x_library}/X11/%L/%T/%N%C%S:\
1367 ${x_library}/X11/%l/%T/%N%C%S:\
1368 ${x_library}/X11/%T/%N%C%S:\
1369 ${x_library}/X11/%L/%T/%N%S:\
1370 ${x_library}/X11/%l/%T/%N%S:\
1371 ${x_library}/X11/%T/%N%S"
1372 if test x"${x_default_search_path}" = x; then
1373 x_default_search_path=${x_search_path}
1375 x_default_search_path="${x_search_path}:${x_default_search_path}"
1379 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1381 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1382 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1385 if test x"${x_includes}" = x; then
1386 bitmapdir=/usr/include/X11/bitmaps
1388 # accumulate include directories that have X11 bitmap subdirectories
1390 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1391 if test -d "${bmd}/X11/bitmaps"; then
1392 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1394 if test -d "${bmd}/bitmaps"; then
1395 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1398 if test ${bmd_acc} != "dummyval"; then
1399 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1406 tmp_CPPFLAGS="$CPPFLAGS"
1407 tmp_CFLAGS="$CFLAGS"
1408 CPPFLAGS="$CPPFLAGS -x objective-c"
1409 CFLAGS="$CFLAGS -x objective-c"
1410 TEMACS_LDFLAGS2="\${LDFLAGS}"
1412 if test "${with_ns}" != no; then
1413 if test "${opsys}" = darwin; then
1415 ns_appdir=`pwd`/nextstep/Emacs.app
1416 ns_appbindir=${ns_appdir}/Contents/MacOS
1417 ns_appresdir=${ns_appdir}/Contents/Resources
1418 ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base
1419 elif test -f $GNUSTEP_CONFIG_FILE; then
1421 ns_appdir=`pwd`/nextstep/Emacs.app
1422 ns_appbindir=${ns_appdir}
1423 ns_appresdir=${ns_appdir}/Resources
1424 ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base
1425 dnl FIXME sourcing this several times in subshells seems inefficient.
1426 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1427 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1428 dnl I seemed to need these as well with GNUstep-startup 0.25.
1429 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1430 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1431 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1432 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1433 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1434 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1435 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1436 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1437 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1441 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1442 dnl If they had chosen to either define it or not, we could have
1443 dnl just used AC_CHECK_DECL here.
1444 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1445 emacs_cv_objc_exceptions,
1446 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1447 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1451 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1452 if test $emacs_cv_objc_exceptions = yes; then
1453 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1454 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1455 [Define if GNUstep uses ObjC exceptions.])
1456 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1460 dnl This is only used while we test the NS headers, it gets reset below.
1461 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1463 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1464 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1465 files are missing or cannot be compiled.])])
1466 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1468 ns_have_nsinteger=yes,
1469 ns_have_nsinteger=no)
1470 if test $ns_have_nsinteger = yes; then
1471 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1474 AC_SUBST(TEMACS_LDFLAGS2)
1476 INSTALL_ARCH_INDEP_EXTRA=install-etc
1477 ns_self_contained=no
1481 if test "${HAVE_NS}" = yes; then
1482 if test "$with_toolkit_scroll_bars" = "no"; then
1483 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1486 window_system=nextstep
1488 # set up packaging dirs
1489 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1490 ns_self_contained=yes
1491 prefix=${ns_appresdir}
1492 exec_prefix=${ns_appbindir}
1493 dnl This one isn't really used, only archlibdir is.
1494 libexecdir="\${ns_appbindir}/libexec"
1495 archlibdir="\${ns_appbindir}/libexec"
1496 docdir="\${ns_appresdir}/etc"
1497 etcdir="\${ns_appresdir}/etc"
1498 dnl FIXME maybe set datarootdir instead.
1499 dnl That would also get applications, icons, man.
1500 infodir="\${ns_appresdir}/info"
1501 mandir="\${ns_appresdir}/man"
1502 lispdir="\${ns_appresdir}/lisp"
1503 leimdir="\${ns_appresdir}/leim"
1504 INSTALL_ARCH_INDEP_EXTRA=
1506 ns_frag=$srcdir/src/ns.mk
1507 NS_OBJ="fontset.o fringe.o image.o"
1508 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1510 CFLAGS="$tmp_CFLAGS"
1511 CPPFLAGS="$tmp_CPPFLAGS"
1512 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1513 AC_SUBST(ns_self_contained)
1515 AC_SUBST(NS_OBJC_OBJ)
1516 AC_SUBST(LIB_STANDARD)
1517 AC_SUBST_FILE(ns_frag)
1519 case "${window_system}" in
1523 case "${with_x_toolkit}" in
1524 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1525 motif ) USE_X_TOOLKIT=MOTIF ;;
1527 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1528 dnl USE_X_TOOLKIT is set.
1529 USE_X_TOOLKIT=none ;;
1530 gtk3 ) with_gtk3=yes
1531 USE_X_TOOLKIT=none ;;
1532 no ) USE_X_TOOLKIT=none ;;
1533 dnl If user did not say whether to use a toolkit, make this decision later:
1534 dnl use the toolkit if we have gtk, or X11R5 or newer.
1535 * ) USE_X_TOOLKIT=maybe ;;
1545 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1546 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1547 if test "$HAVE_XSERVER" = true ||
1548 test -n "$DISPLAY" ||
1549 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1550 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1551 were found. You should install the relevant development files for X
1552 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1553 sure you have development files for image handling, i.e.
1554 tiff, gif, jpeg, png and xpm.
1555 If you are sure you want Emacs compiled without X window support, pass
1561 ### If we're using X11, we should use the X menu package.
1564 yes ) HAVE_MENUS=yes ;;
1567 # Does the opsystem file prohibit the use of the GNU malloc?
1568 # Assume not, until told otherwise.
1572 [whether malloc is Doug Lea style],
1573 [emacs_cv_var_doug_lea_malloc],
1576 [[#include <malloc.h>
1577 static void hook (void) {}]],
1578 [[malloc_set_state (malloc_get_state ());
1579 __after_morecore_hook = hook;
1580 __malloc_initialize_hook = hook;]])],
1581 [emacs_cv_var_doug_lea_malloc=yes],
1582 [emacs_cv_var_doug_lea_malloc=no])])
1583 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1586 dnl See comments in aix4-2.h about maybe using system malloc there.
1589 ## darwin ld insists on the use of malloc routines in the System framework.
1590 darwin|sol2-10) system_malloc=yes ;;
1593 if test "${system_malloc}" = "yes"; then
1594 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1597 (The GNU allocators don't work with this system configuration.)"
1601 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1602 VMLIMIT_OBJ=vm-limit.o
1604 AC_SUBST(GMALLOC_OBJ)
1605 AC_SUBST(VMLIMIT_OBJ)
1607 if test "$doug_lea_malloc" = "yes" ; then
1608 if test "$GNU_MALLOC" = yes ; then
1610 (Using Doug Lea's new malloc from the GNU C Library.)"
1612 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1613 [Define to 1 if you are using the GNU C Library.])
1615 ## Use mmap directly for allocating larger buffers.
1616 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1617 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1618 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1620 gnu*) REL_ALLOC=no ;;
1624 if test x"${REL_ALLOC}" = x; then
1625 REL_ALLOC=${GNU_MALLOC}
1628 use_mmap_for_buffers=no
1630 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1634 if test $use_mmap_for_buffers = yes; then
1635 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1639 LIBS="$LIBS_SYSTEM $LIBS"
1641 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1642 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1643 AC_CHECK_LIB(dnet, dnet_ntoa)
1644 dnl This causes -lresolv to get used in subsequent tests,
1645 dnl which causes failures on some systems such as HPUX 9.
1646 dnl AC_CHECK_LIB(resolv, gethostbyname)
1648 dnl FIXME replace main with a function we actually want from this library.
1649 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1651 dnl Check if pthreads is available.
1653 AC_CHECK_HEADERS_ONCE(pthread.h)
1654 if test "$ac_cv_header_pthread_h"; then
1655 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1656 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1657 dnl testing for pthread_self if Emacs uses gmalloc.c.
1658 if test "$GMALLOC_OBJ" = gmalloc.o; then
1659 emacs_pthread_function=pthread_atfork
1661 emacs_pthread_function=pthread_self
1663 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1665 if test "$HAVE_PTHREAD" = yes; then
1666 case "${canonical}" in
1668 *) LIB_PTHREAD="-lpthread"
1669 LIBS="$LIB_PTHREAD $LIBS" ;;
1671 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1673 AC_SUBST([LIB_PTHREAD])
1675 AC_CHECK_LIB(pthreads, cma_open)
1677 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1678 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1679 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1680 ## added to LIBS in configure would never contain the pthreads part,
1681 ## but the value used in Makefiles might. FIXME?
1683 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1684 ## be harmless on older versions of X where it happens to exist.
1685 test "$opsys" = "aix4-2" && \
1686 test $ac_cv_lib_pthreads_cma_open = yes && \
1687 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1689 dnl Check for need for bigtoc support on IBM AIX
1693 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1695 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1696 *) gdb_cv_bigtoc=-bbigtoc ;;
1699 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1700 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1705 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1706 # used for the tests that follow. We set them back to REAL_CFLAGS and
1707 # REAL_CPPFLAGS later on.
1709 REAL_CFLAGS="$CFLAGS"
1710 REAL_CPPFLAGS="$CPPFLAGS"
1712 if test "${HAVE_X11}" = "yes"; then
1713 DEFS="$C_SWITCH_X_SITE $DEFS"
1714 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1716 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1717 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1719 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1720 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1721 # but it's more convenient here to set LD_RUN_PATH since this
1722 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1723 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1724 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1728 if test "${opsys}" = "gnu-linux"; then
1729 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1730 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1731 [[XOpenDisplay ("foo");]])],
1732 [xgnu_linux_first_failure=no],
1733 [xgnu_linux_first_failure=yes])
1734 if test "${xgnu_linux_first_failure}" = "yes"; then
1735 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1736 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1737 OLD_CPPFLAGS="$CPPFLAGS"
1739 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1740 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1741 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1742 LIBS="$LIBS -b i486-linuxaout"
1743 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1744 [[XOpenDisplay ("foo");]])],
1745 [xgnu_linux_second_failure=no],
1746 [xgnu_linux_second_failure=yes])
1747 if test "${xgnu_linux_second_failure}" = "yes"; then
1748 # If we get the same failure with -b, there is no use adding -b.
1749 # So take it out. This plays safe.
1750 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1751 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1752 CPPFLAGS="$OLD_CPPFLAGS"
1763 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1764 # header files included from there.
1765 AC_MSG_CHECKING(for Xkb)
1766 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1767 #include <X11/XKBlib.h>]],
1768 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1769 emacs_xkb=yes, emacs_xkb=no)
1770 AC_MSG_RESULT($emacs_xkb)
1771 if test $emacs_xkb = yes; then
1772 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1775 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1776 XScreenNumberOfScreen)
1779 if test "${window_system}" = "x11"; then
1780 AC_MSG_CHECKING(X11 version 6)
1781 AC_CACHE_VAL(emacs_cv_x11_version_6,
1782 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1783 [[#if XlibSpecificationRelease < 6
1786 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1787 if test $emacs_cv_x11_version_6 = yes; then
1788 AC_MSG_RESULT(6 or newer)
1789 AC_DEFINE(HAVE_X11R6, 1,
1790 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1791 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1792 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1796 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1797 [Define if you have usable X11R6-style XIM support.])
1801 AC_MSG_RESULT(before 6)
1806 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1808 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1809 if test "${with_rsvg}" != "no"; then
1810 RSVG_REQUIRED=2.11.0
1811 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1813 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1814 AC_SUBST(RSVG_CFLAGS)
1817 if test $HAVE_RSVG = yes; then
1818 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1819 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1820 LIBS="$RSVG_LIBS $LIBS"
1826 if test "${HAVE_X11}" = "yes"; then
1827 if test "${with_imagemagick}" != "no"; then
1828 ## 6.2.8 is the earliest version known to work, but earlier versions
1829 ## might work - let us know if you find one.
1830 ## 6.0.7 does not work. See bug#7955.
1831 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1832 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1833 AC_SUBST(IMAGEMAGICK_CFLAGS)
1834 AC_SUBST(IMAGEMAGICK_LIBS)
1836 if test $HAVE_IMAGEMAGICK = yes; then
1837 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1838 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1839 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1840 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1848 if test "${with_gtk3}" = "yes"; then
1851 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1853 dnl Checks for libraries.
1854 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1855 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1856 AC_MSG_ERROR($GTK_PKG_ERRORS)
1858 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1859 GTK_OBJ=emacsgtkfixed.o
1862 if test "$pkg_check_gtk" != "yes"; then
1864 if test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1867 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1869 dnl Checks for libraries.
1870 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1871 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1872 AC_MSG_ERROR($GTK_PKG_ERRORS)
1877 if test x"$pkg_check_gtk" = xyes; then
1879 AC_SUBST(GTK_CFLAGS)
1881 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1882 CFLAGS="$CFLAGS $GTK_CFLAGS"
1883 LIBS="$GTK_LIBS $LIBS"
1884 dnl Try to compile a simple GTK program.
1886 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1887 if test "${GTK_COMPILES}" != "yes"; then
1888 if test "$USE_X_TOOLKIT" != "maybe"; then
1889 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
1893 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1894 GTK_OBJ="gtkutil.o $GTK_OBJ"
1896 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1899 AC_MSG_WARN([[Your version of Gtk+ will have problems with
1900 closing open displays. This is no problem if you just use
1901 one display, but if you use more than one and close one of them
1911 if test "${HAVE_GTK}" = "yes"; then
1913 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1914 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
1915 if test "$with_toolkit_scroll_bars" != no; then
1916 with_toolkit_scroll_bars=yes
1919 dnl Check if we have the old file selection dialog declared and
1920 dnl in the link library. In 2.x it may be in the library,
1921 dnl but not declared if deprecated featured has been selected out.
1922 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1923 HAVE_GTK_FILE_SELECTION=no
1924 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1925 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1926 #include <gtk/gtk.h>])
1927 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1928 AC_CHECK_FUNCS(gtk_file_selection_new)
1932 dnl Check for functions introduced in 2.14 and later.
1933 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
1934 gtk_dialog_get_action_area gtk_widget_get_sensitive \
1935 gtk_widget_get_mapped gtk_adjustment_get_page_size \
1936 gtk_orientable_set_orientation \
1937 gtk_window_set_has_resize_grip)
1940 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
1941 dnl other platforms.
1944 if test "${with_dbus}" = "yes"; then
1945 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
1946 if test "$HAVE_DBUS" = yes; then
1947 LIBS="$LIBS $DBUS_LIBS"
1948 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
1949 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
1950 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
1952 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
1953 dbus_type_is_valid \
1954 dbus_validate_bus_name \
1955 dbus_validate_path \
1956 dbus_validate_interface \
1957 dbus_validate_member)
1963 dnl GSettings has been tested under GNU/Linux only.
1965 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
1966 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
1967 if test "$HAVE_GSETTINGS" = "yes"; then
1968 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
1969 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
1970 SETTINGS_LIBS="$GSETTINGS_LIBS"
1974 dnl GConf has been tested under GNU/Linux only.
1975 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
1977 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
1978 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
1979 if test "$HAVE_GCONF" = yes; then
1980 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
1981 dnl Newer GConf doesn't link with g_objects, so this is not defined.
1982 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
1983 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
1987 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
1988 SAVE_CFLAGS="$CFLAGS"
1990 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
1991 LIBS="$SETTINGS_LIBS $LIBS"
1992 AC_CHECK_FUNCS([g_type_init])
1993 CFLAGS="$SAVE_CFLAGS"
1996 AC_SUBST(SETTINGS_CFLAGS)
1997 AC_SUBST(SETTINGS_LIBS)
2000 dnl SELinux is available for GNU/Linux only.
2003 if test "${with_selinux}" = "yes"; then
2004 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2005 if test "$HAVE_LIBSELINUX" = yes; then
2006 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2007 LIBSELINUX_LIBS=-lselinux
2010 AC_SUBST(LIBSELINUX_LIBS)
2013 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2014 if test "${with_gnutls}" = "yes" ; then
2015 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2016 if test "${HAVE_GNUTLS}" = "yes"; then
2017 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2020 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2021 LIBS="$LIBGNUTLS_LIBS $LIBS"
2022 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2024 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2025 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2029 AC_SUBST(LIBGNUTLS_LIBS)
2030 AC_SUBST(LIBGNUTLS_CFLAGS)
2032 dnl Do not put whitespace before the #include statements below.
2033 dnl Older compilers (eg sunos4 cc) choke on it.
2036 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2037 if test "$with_xaw3d" != no; then
2038 AC_MSG_CHECKING(for xaw3d)
2039 AC_CACHE_VAL(emacs_cv_xaw3d,
2040 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2041 #include <X11/Intrinsic.h>
2042 #include <X11/Xaw3d/Simple.h>]],
2044 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2045 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2046 emacs_cv_xaw3d=no)])
2050 if test $emacs_cv_xaw3d = yes; then
2051 AC_MSG_RESULT([yes; using Lucid toolkit])
2055 AC_DEFINE(HAVE_XAW3D, 1,
2056 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2059 AC_MSG_CHECKING(for libXaw)
2060 AC_CACHE_VAL(emacs_cv_xaw,
2061 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2062 #include <X11/Intrinsic.h>
2063 #include <X11/Xaw/Simple.h>]],
2067 if test $emacs_cv_xaw = yes; then
2068 AC_MSG_RESULT([yes; using Lucid toolkit])
2071 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2072 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2074 AC_MSG_ERROR([No X toolkit could be found.
2075 If you are sure you want Emacs compiled without an X toolkit, pass
2077 to configure. Otherwise, install the development libraries for the toolkit
2078 that you want to use (e.g. Gtk+) and re-run configure.])
2083 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2086 if test "${USE_X_TOOLKIT}" != "none"; then
2087 AC_MSG_CHECKING(X11 toolkit version)
2088 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2089 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2090 [[#if XtSpecificationRelease < 6
2093 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2094 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2095 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2096 AC_MSG_RESULT(6 or newer)
2097 AC_DEFINE(HAVE_X11XTR6, 1,
2098 [Define to 1 if you have the X11R6 or newer version of Xt.])
2099 LIBXTR6="-lSM -lICE"
2101 ## Use libw.a along with X11R6 Xt.
2102 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2105 AC_MSG_RESULT(before 6)
2108 dnl If using toolkit, check whether libXmu.a exists.
2109 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2111 if test x$HAVE_X11XTR6 = xyes; then
2112 LIBS="-lXt -lSM -lICE $LIBS"
2116 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2117 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2118 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2122 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2123 dnl Why not just test for libxmu in the normal way?
2126 ## These systems don't supply Xmu.
2128 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2133 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2134 if test "${HAVE_X11}" = "yes"; then
2135 if test "${USE_X_TOOLKIT}" != "none"; then
2136 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2141 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2142 AC_CACHE_CHECK(for Motif version 2.1, emacs_cv_motif_version_2_1,
2143 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2144 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2147 Motif version prior to 2.1.
2149 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2150 if test $emacs_cv_motif_version_2_1 = yes; then
2151 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2153 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2154 # We put this in CFLAGS temporarily to precede other -I options
2155 # that might be in CFLAGS temporarily.
2156 # We put this in CPPFLAGS where it precedes the other -I options.
2157 OLD_CPPFLAGS=$CPPFLAGS
2159 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2160 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2161 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2163 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2164 if test $emacs_cv_lesstif = yes; then
2165 # Make sure this -I option remains in CPPFLAGS after it is set
2166 # back to REAL_CPPFLAGS.
2167 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2168 # have those other -I options anyway. Ultimately, having this
2169 # directory ultimately in CPPFLAGS will be enough.
2170 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2171 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2174 CPPFLAGS=$OLD_CPPFLAGS
2177 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2178 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2181 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2182 dnl using Motif or Xaw3d is available, and unless
2183 dnl --with-toolkit-scroll-bars=no was specified.
2185 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2186 [Define to 1 if we should use toolkit scroll bars.])dnl
2187 USE_TOOLKIT_SCROLL_BARS=no
2188 if test "${with_toolkit_scroll_bars}" != "no"; then
2189 if test "${USE_X_TOOLKIT}" != "none"; then
2190 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2191 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2193 USE_TOOLKIT_SCROLL_BARS=yes
2194 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2195 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2196 USE_TOOLKIT_SCROLL_BARS=yes
2198 elif test "${HAVE_GTK}" = "yes"; then
2199 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2200 USE_TOOLKIT_SCROLL_BARS=yes
2201 elif test "${HAVE_NS}" = "yes"; then
2202 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2203 USE_TOOLKIT_SCROLL_BARS=yes
2207 dnl See if XIM is available.
2208 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2209 #include <X11/Xlib.h>
2210 #include <X11/Xresource.h>]],
2211 [[XIMProc callback;]])],
2213 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2216 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2218 if test "${with_xim}" != "no"; then
2219 AC_DEFINE(USE_XIM, 1,
2220 [Define to 1 if we should use XIM, if it is available.])
2224 if test "${HAVE_XIM}" != "no"; then
2226 if test "$GCC" = yes; then
2227 CFLAGS="$CFLAGS --pedantic-errors"
2229 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2230 #include <X11/Xlib.h>
2231 #include <X11/Xresource.h>]],
2237 XPointer *client_data;
2239 /* If we're not using GCC, it's probably not XFree86, and this is
2240 probably right, but we can't use something like --pedantic-errors. */
2241 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2242 char*, XIMProc, XPointer*);
2244 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2246 [emacs_cv_arg6_star=yes])
2247 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2248 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2249 either XPointer or XPointer*.])dnl
2250 if test "$emacs_cv_arg6_star" = yes; then
2251 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2253 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2258 ### Start of font-backend (under any platform) section.
2259 # (nothing here yet -- this is a placeholder)
2260 ### End of font-backend (under any platform) section.
2262 ### Start of font-backend (under X11) section.
2263 if test "${HAVE_X11}" = "yes"; then
2264 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2266 ## Use -lXft if available, unless `--with-xft=no'.
2268 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2271 if test "x${with_xft}" != "xno"; then
2273 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2274 ## Because xftfont.c uses XRenderQueryExtension, we also
2275 ## need to link to -lXrender.
2277 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2278 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2279 OLD_CPPFLAGS="$CPPFLAGS"
2280 OLD_CFLAGS="$CFLAGS"
2282 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2283 CFLAGS="$CFLAGS $XFT_CFLAGS"
2284 XFT_LIBS="-lXrender $XFT_LIBS"
2285 LIBS="$XFT_LIBS $LIBS"
2286 AC_CHECK_HEADER(X11/Xft/Xft.h,
2287 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2289 if test "${HAVE_XFT}" = "yes"; then
2290 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2292 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2294 CPPFLAGS="$OLD_CPPFLAGS"
2295 CFLAGS="$OLD_CFLAGS"
2297 fi # "${HAVE_XFT}" = "yes"
2298 fi # "$HAVE_XFT" != no
2299 fi # "x${with_xft}" != "xno"
2301 ## We used to allow building with FreeType and without Xft.
2302 ## However, the ftx font backend driver is not in good shape.
2303 if test "$HAVE_XFT" != "yes"; then
2304 dnl For the "Does Emacs use" message at the end.
2308 dnl Strict linkers fail with
2309 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2310 dnl if -lfreetype is not specified.
2311 dnl The following is needed to set FREETYPE_LIBS.
2312 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2315 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2319 if test "${HAVE_FREETYPE}" = "yes"; then
2320 AC_DEFINE(HAVE_FREETYPE, 1,
2321 [Define to 1 if using the freetype and fontconfig libraries.])
2322 if test "${with_libotf}" != "no"; then
2323 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2325 if test "$HAVE_LIBOTF" = "yes"; then
2326 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2327 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2328 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2329 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2330 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2331 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2332 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2336 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2337 dnl Does the new font backend require it, or can it work without it?
2341 if test "${HAVE_LIBOTF}" = yes; then
2342 if test "${with_m17n_flt}" != "no"; then
2343 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2344 if test "$HAVE_M17N_FLT" = "yes"; then
2345 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2356 ### End of font-backend (under X11) section.
2358 AC_SUBST(FREETYPE_CFLAGS)
2359 AC_SUBST(FREETYPE_LIBS)
2360 AC_SUBST(FONTCONFIG_CFLAGS)
2361 AC_SUBST(FONTCONFIG_LIBS)
2362 AC_SUBST(LIBOTF_CFLAGS)
2363 AC_SUBST(LIBOTF_LIBS)
2364 AC_SUBST(M17N_FLT_CFLAGS)
2365 AC_SUBST(M17N_FLT_LIBS)
2367 ### Use -lXpm if available, unless `--with-xpm=no'.
2370 if test "${HAVE_X11}" = "yes"; then
2371 if test "${with_xpm}" != "no"; then
2372 AC_CHECK_HEADER(X11/xpm.h,
2373 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2374 if test "${HAVE_XPM}" = "yes"; then
2375 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2376 AC_EGREP_CPP(no_return_alloc_pixels,
2377 [#include "X11/xpm.h"
2378 #ifndef XpmReturnAllocPixels
2379 no_return_alloc_pixels
2381 ], HAVE_XPM=no, HAVE_XPM=yes)
2383 if test "${HAVE_XPM}" = "yes"; then
2391 if test "${HAVE_XPM}" = "yes"; then
2392 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2398 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2401 if test "${HAVE_X11}" = "yes"; then
2402 if test "${with_jpeg}" != "no"; then
2403 dnl Checking for jpeglib.h can lose because of a redefinition of
2405 AC_CHECK_HEADER(jerror.h,
2406 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2409 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2410 if test "${HAVE_JPEG}" = "yes"; then
2411 AC_DEFINE(HAVE_JPEG)
2412 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2413 [#include <jpeglib.h>
2414 version=JPEG_LIB_VERSION
2416 [AC_DEFINE(HAVE_JPEG)],
2417 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2420 if test "${HAVE_JPEG}" = "yes"; then
2426 ### Use -lpng if available, unless `--with-png=no'.
2429 if test "${HAVE_X11}" = "yes"; then
2430 if test "${with_png}" != "no"; then
2431 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2432 # in /usr/include/libpng.
2433 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2434 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2435 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2439 if test "${HAVE_PNG}" = "yes"; then
2440 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2441 LIBPNG="-lpng -lz -lm"
2443 AC_CHECK_DECL(png_longjmp,
2445 [AC_DEFINE(PNG_DEPSTRUCT, [],
2446 [Define to empty to suppress deprecation warnings when building
2447 with --enable-gcc-warnings and with libpng versions before 1.5,
2448 which lack png_longjmp.])],
2449 [[#ifdef HAVE_LIBPNG_PNG_H
2450 # include <libpng/png.h>
2459 ### Use -ltiff if available, unless `--with-tiff=no'.
2462 if test "${HAVE_X11}" = "yes"; then
2463 if test "${with_tiff}" != "no"; then
2464 AC_CHECK_HEADER(tiffio.h,
2466 # At least one tiff package requires the jpeg library.
2467 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2468 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2471 if test "${HAVE_TIFF}" = "yes"; then
2472 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2473 dnl FIXME -lz -lm, as per libpng?
2479 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2482 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2483 AC_CHECK_HEADER(gif_lib.h,
2484 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2485 # Earlier versions can crash Emacs.
2486 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2488 if test "$HAVE_GIF" = yes; then
2490 elif test "$HAVE_GIF" = maybe; then
2491 # If gif_lib.h but no libgif, try libungif.
2492 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2493 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2496 if test "${HAVE_GIF}" = "yes"; then
2497 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2502 dnl Check for required libraries.
2503 if test "${HAVE_X11}" = "yes"; then
2506 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2507 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2508 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2509 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2510 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2511 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2512 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2513 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2514 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2515 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2517 if test "X${MISSING}" != X; then
2518 AC_MSG_ERROR([The following required libraries were not found:
2520 Maybe some development libraries/packages are missing?
2521 If you don't want to link with them give
2523 as options to configure])
2527 ### Use -lgpm if available, unless `--with-gpm=no'.
2530 if test "${with_gpm}" != "no"; then
2531 AC_CHECK_HEADER(gpm.h,
2532 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2534 if test "${HAVE_GPM}" = "yes"; then
2535 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2541 dnl Check for malloc/malloc.h on darwin
2542 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2545 ### Use NeXTstep API to implement GUI.
2546 if test "${HAVE_NS}" = "yes"; then
2547 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2548 if test "${NS_IMPL_COCOA}" = "yes"; then
2549 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2551 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2552 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2553 # See also .m.o rule in Makefile.in */
2554 # FIXME: are all these flags really needed? Document here why. */
2555 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2556 ## Extra CFLAGS applied to src/*.m files.
2557 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"
2559 # We also have mouse menus.
2565 ### Use session management (-lSM -lICE) if available
2568 if test "${HAVE_X11}" = "yes"; then
2569 AC_CHECK_HEADER(X11/SM/SMlib.h,
2570 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2572 if test "${HAVE_X_SM}" = "yes"; then
2573 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2577 *) LIBS="$LIBXSM $LIBS" ;;
2583 ### Use libxml (-lxml2) if available
2585 if test "${with_xml2}" != "no"; then
2586 ### I'm not sure what the version number should be, so I just guessed.
2587 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2588 if test "${HAVE_LIBXML2}" = "yes"; then
2589 LIBS="$LIBXML2_LIBS $LIBS"
2590 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2591 if test "${HAVE_LIBXML2}" = "yes"; then
2592 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2599 AC_SUBST(LIBXML2_LIBS)
2600 AC_SUBST(LIBXML2_CFLAGS)
2602 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2603 AC_CACHE_CHECK(whether netdb declares h_errno,
2604 emacs_cv_netdb_declares_h_errno,
2605 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2606 [[return h_errno;]])],
2607 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2608 if test $emacs_cv_netdb_declares_h_errno = yes; then
2609 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2612 # fmod, logb, and frexp are found in -lm on most systems.
2613 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
2614 AC_CHECK_LIB(m, sqrt)
2616 # Check for mail-locking functions in a "mail" library. Probably this should
2617 # have the same check as for liblockfile below.
2618 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2619 if test $have_mail = yes; then
2621 LIBS="$LIBS_MAIL $LIBS"
2622 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2626 dnl Debian, at least:
2627 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2628 if test $have_lockfile = yes; then
2629 LIBS_MAIL=-llockfile
2630 LIBS="$LIBS_MAIL $LIBS"
2631 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2633 # If we have the shared liblockfile, assume we must use it for mail
2634 # locking (e.g. Debian). If we couldn't link against liblockfile
2635 # (no liblockfile.a installed), ensure that we don't need to.
2636 dnl This works for files generally, not just executables.
2637 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2638 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2639 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2640 if test $ac_cv_prog_liblockfile = yes; then
2641 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2642 This probably means that movemail could lose mail.
2643 There may be a `development' package to install containing liblockfile.])
2646 AC_CHECK_HEADERS_ONCE(maillock.h)
2649 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2650 ## interlock access to the mail spool. The alternative is a lock file named
2651 ## /usr/spool/mail/$USER.lock.
2654 aix4-2) mail_lock="lockf" ;;
2656 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2658 ## On GNU/Linux systems, both methods are used by various mail programs.
2659 ## I assume most people are using newer mailers that have heard of flock.
2660 ## Change this if you need to.
2661 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2662 ## configure gets the right answers, and that means *NOT* using flock.
2663 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2664 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2665 ## Debian maintainer hasn't provided a clean fix for Emacs.
2666 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2667 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2668 ## correct logic. -- fx
2669 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2670 ## liblockfile is a Free Software replacement for libmail, used on
2671 ## Debian systems and elsewhere. -rfr.
2674 if test $have_mail = yes || test $have_lockfile = yes; then
2675 test $ac_cv_header_maillock_h = yes && mail_lock=no
2681 case "$mail_lock" in
2682 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2684 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2686 *) BLESSMAIL_TARGET="need-blessmail" ;;
2688 AC_SUBST(BLESSMAIL_TARGET)
2691 AC_CHECK_FUNCS(gethostname \
2692 closedir getrusage get_current_dir_name \
2693 lrand48 logb frexp fmod cbrt setsid \
2694 fpathconf select euidaccess getpagesize setlocale \
2695 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2696 __fpending strsignal setitimer \
2697 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2698 gai_strerror mkstemp getline getdelim fsync sync \
2699 difftime posix_memalign \
2700 getpwent endpwent getgrent endgrent \
2702 cfmakeraw cfsetspeed copysign __executable_start)
2704 dnl FIXME Fragile: something else may test for getwd as a dependency.
2705 dnl Change to defining BROKEN_xxx ?
2706 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2707 if test $opsys != unixware; then
2708 AC_CHECK_FUNCS(getwd)
2711 dnl FIXME Fragile: see above.
2712 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2713 ## has a broken `rint' in some library versions including math library
2714 ## version number A.09.05.
2715 ## You can fix the math library by installing patch number PHSS_4630.
2716 ## But we can fix it more reliably for Emacs by just not using rint.
2717 ## We also skip HAVE_RANDOM - see comments in src/s/hpux10-20.h.
2720 *) AC_CHECK_FUNCS(random rint) ;;
2723 dnl Cannot use AC_CHECK_FUNCS
2724 AC_CACHE_CHECK([for __builtin_unwind_init],
2725 emacs_cv_func___builtin_unwind_init,
2726 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2727 emacs_cv_func___builtin_unwind_init=yes,
2728 emacs_cv_func___builtin_unwind_init=no)])
2729 if test $emacs_cv_func___builtin_unwind_init = yes; then
2730 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2731 [Define to 1 if you have the `__builtin_unwind_init' function.])
2734 AC_CHECK_HEADERS_ONCE(sys/un.h)
2741 AC_CHECK_FUNCS(grantpt)
2743 # PTY-related GNU extensions.
2744 AC_CHECK_FUNCS(getpt)
2746 # Check this now, so that we will NOT find the above functions in ncurses.
2747 # That is because we have not set up to link ncurses in lib-src.
2748 # It's better to believe a function is not available
2749 # than to expect to find it in ncurses.
2750 # Also we need tputs and friends to be able to build at all.
2751 AC_MSG_CHECKING([for library containing tputs])
2752 # Run a test program that contains a call to tputs, a call that is
2753 # never executed. This tests whether a pre-'main' dynamic linker
2754 # works with the library. It's too much trouble to actually call
2755 # tputs in the test program, due to portability hassles. When
2756 # cross-compiling, assume the test program will run if it links.
2757 AC_DEFUN([tputs_link_source], [
2759 [[extern void tputs (const char *, int, int (*)(int));
2760 int main (int argc, char **argv)
2763 tputs (argv[0], 0, 0);
2767 # Maybe curses should be tried earlier?
2768 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2769 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2771 if test -z "$tputs_library"; then
2775 LIBS_TERMCAP=-l$tputs_library
2777 LIBS="$LIBS_TERMCAP $LIBS"
2779 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2780 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2782 if test "X$msg" != Xno; then
2786 AC_MSG_RESULT([$msg])
2787 if test "X$msg" = Xno; then
2788 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2789 The following libraries were tried (in order):
2790 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2791 Please try installing whichever of these libraries is most appropriate
2792 for your system, together with its header files.
2793 For example, a libncurses-dev(el) or similar package.])
2796 ## Use termcap instead of terminfo?
2797 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2799 ## FIXME? In the cases below where we unconditionally set
2800 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2801 ## if that was found above to have tputs.
2802 ## Should we use the gnu* logic everywhere?
2804 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2805 ## The ncurses library has been moved out of the System framework in
2806 ## Mac OS X 10.2. So if configure detects it, set the command-line
2807 ## option to use it.
2808 darwin) LIBS_TERMCAP="-lncurses" ;;
2810 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2813 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2814 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2815 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2816 [[#if __FreeBSD_version < 400000
2819 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2821 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2823 if test $emacs_cv_freebsd_terminfo = yes; then
2824 LIBS_TERMCAP="-lncurses"
2827 LIBS_TERMCAP="-ltermcap"
2832 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
2834 LIBS_TERMCAP="-ltermcap"
2838 openbsd) LIBS_TERMCAP="-lncurses" ;;
2840 ## hpux: Make sure we get select from libc rather than from libcurses
2841 ## because libcurses on HPUX 10.10 has a broken version of select.
2842 ## We used to use -lc -lcurses, but this may be cleaner.
2843 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
2844 # set that way, now it uses the default). Isn't this a contradiction?
2845 hpux*) LIBS_TERMCAP="-ltermcap" ;;
2849 TERMCAP_OBJ=tparam.o
2850 if test $TERMINFO = yes; then
2851 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
2852 TERMCAP_OBJ=terminfo.o
2854 AC_SUBST(LIBS_TERMCAP)
2855 AC_SUBST(TERMCAP_OBJ)
2858 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2859 # On Darwin, res_init appears not to be useful: see bug#562 and
2860 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
2863 if test $opsys != darwin; then
2865 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2866 #include <arpa/nameser.h>
2867 #include <resolv.h>]],
2868 [[return res_init();]])],
2869 have_res_init=yes, have_res_init=no)
2870 if test "$have_res_init" = no; then
2872 LIBS="$LIBS -lresolv"
2873 AC_MSG_CHECKING(for res_init with -lresolv)
2874 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2875 #include <arpa/nameser.h>
2876 #include <resolv.h>]],
2877 [[return res_init();]])],
2878 have_res_init=yes, have_res_init=no)
2879 AC_MSG_RESULT($have_res_init)
2880 if test "$have_res_init" = yes ; then
2886 if test "$have_res_init" = yes; then
2887 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2891 # Do we need the Hesiod library to provide the support routines?
2892 dnl FIXME? Should we be skipping this on Darwin too?
2894 if test "$with_hesiod" != no ; then
2895 # Don't set $LIBS here -- see comments above. FIXME which comments?
2896 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2897 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2898 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2899 if test "$resolv" = yes ; then
2904 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2905 hesiod=yes, :, $RESOLVLIB)])
2907 if test x"$hesiod" = xyes; then
2908 AC_DEFINE(HAVE_LIBHESIOD, 1,
2909 [Define to 1 if you have the hesiod library (-lhesiod).])
2915 # Do we need libresolv (due to res_init or Hesiod)?
2916 if test "$resolv" = yes && test $opsys != darwin; then
2917 AC_DEFINE(HAVE_LIBRESOLV, 1,
2918 [Define to 1 if you have the resolv library (-lresolv).])
2925 # These tell us which Kerberos-related libraries to use.
2932 if test "${with_kerberos}" != no; then
2933 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
2934 if test $have_com_err = yes; then
2935 COM_ERRLIB=-lcom_err
2936 LIBS="$COM_ERRLIB $LIBS"
2937 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
2939 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
2940 if test $have_crypto = yes; then
2942 LIBS="$CRYPTOLIB $LIBS"
2943 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
2945 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
2946 if test $have_k5crypto = yes; then
2947 CRYPTOLIB=-lk5crypto
2948 LIBS="$CRYPTOLIB $LIBS"
2949 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
2951 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
2952 if test $have_krb5=yes; then
2954 LIBS="$KRB5LIB $LIBS"
2955 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
2957 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
2958 if test "${with_kerberos5}" = no; then
2959 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
2960 if test $have_des425 = yes; then
2962 LIBS="$DESLIB $LIBS"
2963 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
2965 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
2966 if test $have_des = yes; then
2968 LIBS="$DESLIB $LIBS"
2969 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
2972 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
2973 if test $have_krb4 = yes; then
2975 LIBS="$KRB4LIB $LIBS"
2976 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
2978 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
2979 if test $have_krb = yes; then
2981 LIBS="$KRB4LIB $LIBS"
2982 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
2987 if test "${with_kerberos5}" != no; then
2988 AC_CHECK_HEADERS(krb5.h,
2989 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
2990 [#include <krb5.h>])])
2992 AC_CHECK_HEADERS(des.h,,
2993 [AC_CHECK_HEADERS(kerberosIV/des.h,,
2994 [AC_CHECK_HEADERS(kerberos/des.h)])])
2995 AC_CHECK_HEADERS(krb.h,,
2996 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
2997 [AC_CHECK_HEADERS(kerberos/krb.h)])])
2999 AC_CHECK_HEADERS(com_err.h)
3002 AC_SUBST(COM_ERRLIB)
3008 AC_CHECK_FUNCS_ONCE(tzset)
3009 AC_MSG_CHECKING(whether localtime caches TZ)
3010 AC_CACHE_VAL(emacs_cv_localtime_cache,
3011 [if test x$ac_cv_func_tzset = xyes; then
3012 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3013 char TZ_GMT0[] = "TZ=GMT0";
3014 char TZ_PST8[] = "TZ=PST8";
3017 time_t now = time ((time_t *) 0);
3018 int hour_GMT0, hour_unset;
3019 if (putenv (TZ_GMT0) != 0)
3021 hour_GMT0 = localtime (&now)->tm_hour;
3023 hour_unset = localtime (&now)->tm_hour;
3024 if (putenv (TZ_PST8) != 0)
3026 if (localtime (&now)->tm_hour == hour_GMT0)
3029 if (localtime (&now)->tm_hour != hour_unset)
3032 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3033 [# If we have tzset, assume the worst when cross-compiling.
3034 emacs_cv_localtime_cache=yes])
3036 # If we lack tzset, report that localtime does not cache TZ,
3037 # since we can't invalidate the cache if we don't have tzset.
3038 emacs_cv_localtime_cache=no
3040 AC_MSG_RESULT($emacs_cv_localtime_cache)
3041 if test $emacs_cv_localtime_cache = yes; then
3042 AC_DEFINE(LOCALTIME_CACHE, 1,
3043 [Define to 1 if localtime caches TZ.])
3047 AC_CHECK_FUNC(socket, , ok_so_far=no)
3048 if test $ok_so_far = yes; then
3049 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3051 if test $ok_so_far = yes; then
3052 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3054 if test $ok_so_far = yes; then
3055 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3056 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3057 [Define to 1 if you have inet sockets.])
3060 if test -f /usr/lpp/X11/bin/smt.exp; then
3061 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3062 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3065 AC_MSG_CHECKING(whether system supports dynamic ptys)
3066 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3068 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3075 AC_CHECK_FUNCS(snprintf)
3077 dnl Adapted from Haible's version.
3078 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3079 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3080 [[char* cs = nl_langinfo(CODESET);]])],
3081 emacs_cv_langinfo_codeset=yes,
3082 emacs_cv_langinfo_codeset=no)
3084 if test $emacs_cv_langinfo_codeset = yes; then
3085 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3086 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3091 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3092 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3093 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3094 if test "$emacs_cv_c_restrict_arr" = yes; then
3095 AC_DEFINE(__restrict_arr, __restrict,
3096 [Define to compiler's equivalent of C99 restrict keyword in array
3097 declarations. Define as empty for no equivalent.])
3100 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3101 dnl how the tty code is related to POSIX and/or other versions of termios.
3102 dnl The following looks like a useful start.
3104 dnl AC_SYS_POSIX_TERMIOS
3105 dnl if test $ac_cv_sys_posix_termios = yes; then
3106 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3107 dnl and macros for terminal control.])
3108 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3111 dnl Every platform that uses configure (ie every non-MS platform)
3112 dnl supports this. There is a create-lockfiles option you can
3113 dnl customize if you do not want the lock files to be written.
3114 dnl So it is not clear that this #define still needs to exist.
3115 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3116 so that Emacs can tell instantly when you try to modify a file that
3117 someone else has modified in his/her Emacs.])
3119 dnl Everybody supports this, except MS.
3120 dnl Seems like the kind of thing we should be testing for, though.
3121 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3122 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3124 dnl Everybody supports this, except MS-DOS.
3125 dnl Seems like the kind of thing we should be testing for, though.
3126 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3127 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3128 4.2-compatible sockets.])
3131 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3135 dnl Unfortunately without libXmu we cannot support EditRes.
3136 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3137 AC_DEFINE(NO_EDITRES, 1)
3142 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3143 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3144 AC_DEFINE(NO_EDITRES, 1)
3150 darwin | gnu | hpux* | *bsd )
3151 AC_DEFINE(NO_TERMIO, 1, [Define if termio.h should not be included.])
3154 irix6-5 | sol2* | unixware )
3155 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3156 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3157 dnl need the constant to dimension an array. So wire in the appropriate
3159 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3165 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3166 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3167 hpux* | irix6-5 | openbsd | sol2* | unixware )
3168 AC_DEFINE(BROKEN_SIGIO, 1, [Define if SIGIO should not be used.])
3172 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3173 AC_DEFINE(BROKEN_FIONREAD, 1, [Define if FIONREAD should not be used.])
3174 dnl As we define BROKEN_FIONREAD, SIGIO will be undefined in systty.h.
3175 dnl But, on AIX, SIGAIO, SIGPTY, and SIGPOLL are defined as SIGIO,
3176 dnl which causes compilation error at init_signals in sysdep.c.
3177 dnl So, we define these macros so that syssignal.h detects them
3178 dnl and undefine SIGAIO, SIGPTY and SIGPOLL.
3179 AC_DEFINE(BROKEN_SIGAIO, 1, [Define if SIGAIO should not be used.])
3180 AC_DEFINE(BROKEN_SIGPOLL,1, [Define if SIGPOLL should not be used.])
3181 AC_DEFINE(BROKEN_SIGPTY, 1, [Define if SIGPTY should not be used.])
3183 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3184 dnl the way this system works, libc functions that return malloced
3185 dnl memory use the libc malloc implementation. Calling xfree or
3186 dnl xrealloc on the results of such functions results in a crash.
3188 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3189 dnl but that does not currently work on this system.
3191 dnl It is possible to completely override the malloc implementation on
3192 dnl AIX, but that involves putting the malloc functions in a shared
3193 dnl library and setting the MALLOCTYPE environment variable to point to
3194 dnl that shared library.
3196 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3197 dnl to avoid a crash just use the Emacs implementation for that function.
3199 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3200 dnl of this file, so that we do not check for get_current_dir_name
3201 dnl on AIX. But that might be fragile if something else ends
3202 dnl up testing for get_current_dir_name as a dependency.
3203 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3204 get_current_dir_name should not be used.])
3208 dnl Circumvent a bug in FreeBSD. In the following sequence of
3209 dnl writes/reads on a PTY, read(2) returns bogus data:
3211 dnl write(2) 1022 bytes
3212 dnl write(2) 954 bytes, get EAGAIN
3213 dnl read(2) 1024 bytes in process_read_output
3214 dnl read(2) 11 bytes in process_read_output
3216 dnl That is, read(2) returns more bytes than have ever been written
3217 dnl successfully. The 1033 bytes read are the 1022 bytes written
3218 dnl successfully after processing (for example with CRs added if the
3219 dnl terminal is set up that way which it is here). The same bytes will
3220 dnl be seen again in a later read(2), without the CRs.
3221 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3222 work around an issue when reading from a PTY.])
3225 dnl Define the following so emacs symbols will not conflict with those
3226 dnl in the System framework. Otherwise -prebind will not work.
3228 AC_DEFINE(NO_ABORT, 1, [Do not define abort in emacs.c.])
3234 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3235 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3240 darwin | freebsd | netbsd | openbsd )
3241 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3242 close a pty to make it a controlling terminal (it is already a
3243 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3247 dnl FIXME Surely we can test for this rather than hard-code it.
3249 netbsd | openbsd) sound_device="/dev/audio" ;;
3250 *) sound_device="/dev/dsp" ;;
3254 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3255 [Name of the default sound device.])
3258 dnl Emacs can read input using SIGIO and buffering characters itself,
3259 dnl or using CBREAK mode and making C-g cause SIGINT.
3260 dnl The choice is controlled by the variable interrupt_input.
3262 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3264 dnl Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros
3265 dnl to indicate whether or not signal-driven I/O is possible. It uses
3266 dnl INTERRUPT_INPUT to decide whether to use it by default.
3268 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3269 dnl CBREAK mode has two disadvantages
3270 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3271 dnl I hear that in system V this problem does not exist.
3272 dnl 2) Control-G causes output to be discarded.
3273 dnl I do not know whether this can be fixed in system V.
3275 dnl Another method of doing input is planned but not implemented.
3276 dnl It would have Emacs fork off a separate process
3277 dnl to read the input and send it to the true Emacs process
3280 darwin | gnu-linux | gnu-kfreebsd )
3281 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3286 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3287 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3288 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3289 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3290 dnl taking float or double parameters.
3292 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3293 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3294 file defines `NeedWidePrototypes' as `NO'.])
3299 dnl Used in process.c, this must be a loop, even if it only runs once.
3300 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3301 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3302 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3303 dnl trying suffixes 0-16.
3304 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3305 first PTY, if PTYs are supported.])
3306 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3307 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3308 end of a PTY, if non-standard.])
3309 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3310 end of a PTY, if non-standard.])
3314 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)] )
3315 dnl You allocate a pty by opening /dev/ptc to get the master side.
3316 dnl To get the name of the slave side, you just ttyname() the master side.
3317 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");] )
3318 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));] )
3322 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)] )
3323 dnl multi-line AC_DEFINEs are hard. :(
3324 AC_DEFINE(PTY_OPEN, [ do { int dummy; SIGMASKTYPE mask; mask = sigblock (sigmask (SIGCHLD)); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; sigsetmask (mask); if (fd >= 0) emacs_close (dummy); } while (0)] )
3325 AC_DEFINE(PTY_NAME_SPRINTF, [] )
3326 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [] )
3330 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)] )
3331 dnl Not used, because PTY_ITERATION is defined.
3332 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3333 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3334 dnl But we don't have to block SIGCHLD because it is blocked in the
3335 dnl implementation of grantpt.
3336 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)] )
3337 AC_DEFINE(PTY_NAME_SPRINTF, [] )
3338 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [] )
3341 gnu | freebsd | netbsd | openbsd )
3342 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3345 gnu-linux | gnu-kfreebsd )
3347 if test "x$ac_cv_func_grantpt" = xyes; then
3348 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3349 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)] )
3350 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3351 dnl to prevent sigchld_handler from intercepting the child's death.
3352 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname; sigblock (sigmask (SIGCHLD)); if (grantpt (fd) == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname(fd))) { sigunblock (sigmask (SIGCHLD)); close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); sigunblock (sigmask (SIGCHLD)); }] )
3354 if test "x$ac_cv_func_getpt" = xyes; then
3355 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3356 AC_DEFINE(PTY_NAME_SPRINTF, [] )
3358 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");] )
3361 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3366 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3367 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);] )
3368 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);] )
3372 dnl It looks like this cannot be right, because it is not a loop.
3373 dnl However, process.c actually does this:
3379 dnl which presumably makes it OK, since irix == sgi (?).
3380 dnl FIXME it seems like this special treatment is unnecessary?
3381 dnl Why can't irix use a single-trip loop like eg cygwin?
3382 AC_DEFINE(PTY_ITERATION, [])
3383 dnl Not used, because PTY_ITERATION is defined.
3384 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3385 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); }] )
3386 dnl No need to get the pty name at all.
3387 AC_DEFINE(PTY_NAME_SPRINTF, [] )
3388 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3389 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [] )
3393 dnl Uses sigblock/sigunblock rather than sighold/sigrelse,
3394 dnl which appear to be BSD4.1 specific. It may also be appropriate
3395 dnl for SVR4.x (x<2) but I'm not sure. fnf@cygnus.com
3396 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3397 dnl from intercepting that death. If any child but grantpt's should die
3398 dnl within, it should be caught after sigrelse(2).
3399 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; sigblock (sigmask (SIGCLD)); if (grantpt (fd) == -1) { emacs_close (fd); return -1; } sigunblock (sigmask (SIGCLD)); if (unlockpt (fd) == -1) { emacs_close (fd); return -1; } if (!(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }] )
3403 dnl Comments are as per sol2*.
3404 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; sigblock(sigmask(SIGCLD)); if (grantpt(fd) == -1) fatal("could not grant slave pty"); sigunblock(sigmask(SIGCLD)); 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); }] )
3411 dnl This change means that we don't loop through allocate_pty too
3412 dnl many times in the (rare) event of a failure.
3413 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3414 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");] )
3415 dnl Push various streams modules onto a PTY channel. Used in process.c.
3416 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.])
3421 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3422 "typing" a signal character on the pty.])
3425 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3426 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3427 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3428 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3431 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3432 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3433 gnu-linux | gnu-kfreebsd )
3435 AC_MSG_CHECKING([for signals via characters])
3436 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3437 #include <linux/version.h>
3438 #if LINUX_VERSION_CODE < 0x20400
3439 # error "Linux version too old"
3441 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3443 AC_MSG_RESULT([$emacs_signals_via_chars])
3444 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3449 dnl Used in dispnew.c
3450 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3451 buffer of a stdio stream.])
3453 dnl FIXME just PENDING_OUTPUT_COUNT should suffice.
3454 AH_TEMPLATE(GNU_LIBRARY_PENDING_OUTPUT_COUNT, [Value of
3455 PENDING_OUTPUT_COUNT if using the GNU C library.])
3458 cygwin | darwin | freebsd | netbsd | openbsd )
3459 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3463 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3466 gnu | gnu-linux | gnu-kfreebsd )
3467 AC_MSG_CHECKING([for style of pending output formalism])
3468 dnl In autoconf 2.67 and later, we could use a single test
3469 dnl since the preprocessed output is accessible in "conftest.i".
3470 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3472 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3473 # error "stdio definitions not found"
3475 ]], [[]])], emacs_pending_output=new, emacs_pending_output=unknown)
3477 if test $emacs_pending_output = unknown; then
3479 gnu-linux | gnu-kfreebsd)
3480 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3483 # error "not using uclibc"
3485 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3490 AC_MSG_RESULT([$emacs_pending_output])
3492 case $emacs_pending_output in
3494 dnl New C libio names.
3495 AC_DEFINE(GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE),
3496 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3499 dnl Using the uClibc library.
3500 AC_DEFINE(GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE),
3501 [((FILE)->__bufpos - (FILE)->__bufstart)])
3504 dnl Old C++ iostream names.
3505 AC_DEFINE(GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE),
3506 [((FILE)->_pptr - (FILE)->_pbase)])
3513 dnl Used in vm-limit.c
3514 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3515 dnl Used in lisp.h, emacs.c, mem-limits.h
3516 dnl NEWS.18 describes this as "a number which contains
3517 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3518 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3519 stored in a Lisp_Object.])
3520 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3524 dnl libc defines data_start.
3525 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3529 dnl The data segment on this machine always starts at address 0x40000000.
3530 AC_DEFINE(DATA_START, [0x40000000])
3531 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3534 AC_DEFINE(DATA_START, [0x10000000])
3535 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3540 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3541 AH_TEMPLATE(TAB3, [Undocumented.])
3544 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3546 gnu | freebsd | netbsd | openbsd )
3547 AC_DEFINE(TABDLY, OXTABS, [Undocumented.] )
3548 AC_DEFINE(TAB3, OXTABS)
3551 gnu-linux | gnu-kfreebsd )
3552 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3553 dnl library, we cannot get the maximum address for brk.
3554 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3558 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3560 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3564 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3565 [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)],
3566 [Mark a secondary stack, like the register stack on the ia64.]), [])
3570 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3571 run_time_remap; for HPUX.])
3575 dnl Ulimit(UL_GMEMLIM) is busted...
3576 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3581 dnl These won't be used automatically yet. We also need to know, at least,
3582 dnl that the stack is continuous.
3583 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3584 registers relevant for conservative garbage collection in the jmp_buf.])
3586 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3587 conservative garbage collection is not known to work.])
3591 aix4-2 | hpux* | unixware)
3592 dnl Conservative garbage collection has not been tested, so for now
3593 dnl play it safe and stick with the old-fashioned way of marking.
3594 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3597 dnl Not all the architectures are tested, but there are Debian packages
3598 dnl for SCM and/or Guile on them, so the technique must work. See also
3599 dnl comments in alloc.c concerning setjmp and gcc.
3600 dnl Fixme: it's probably safe to just use the GCC conditional below.
3601 gnu-linux | gnu-kfreebsd )
3602 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3603 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3604 || defined __alpha__ || defined __mips__ || defined __s390__ \
3605 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3606 || defined __ia64__ || defined __sh__
3609 # error "setjmp not known to work on this arch"
3611 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3612 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3617 if test x$GCC = xyes; then
3618 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3619 AC_DEFINE(GC_SETJMP_WORKS, 1)
3622 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3623 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3624 AC_DEFINE(GC_SETJMP_WORKS, 1)
3632 dnl setjmp and longjmp can safely replace _setjmp and _longjmp,
3633 dnl but they will run more slowly.
3634 AC_DEFINE(_setjmp, setjmp, [Some platforms redefine this.])
3635 AC_DEFINE(_longjmp, longjmp, [Some platforms redefine this.])
3636 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3637 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3638 dnl and this is all we need.
3639 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3643 dnl Used in process.c.
3645 irix6-5 | sol2* | unixware )
3646 dnl It is possible to receive SIGCHLD when there are no children
3647 dnl waiting, because a previous waitsys(2) cleaned up the carcass
3648 dnl of child without clearing the SIGCHLD pending info. So, use a
3649 dnl non-blocking wait3 instead, which maps to waitpid(2) in SysVr4.
3650 AC_DEFINE(wait3(status, options, rusage),
3651 [waitpid ((pid_t) -1, (status), (options))],
3652 [Some platforms redefine this.])
3653 dnl FIXME this makes no sense, because WRETCODE is only used in
3654 dnl process.c, which includes syswait.h aftet config.h, and the
3655 dnl former unconditionally redefines WRETCODE.
3656 AC_DEFINE(WRETCODE(w), [(w >> 8)], [Some platforms redefine this.])
3663 dnl Used in xfaces.c.
3664 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3665 some systems, where it requires time.h.])
3669 dnl Greg A. Woods <woods@weird.com> says we must include signal.h
3670 dnl before syssignal.h is included, to work around interface conflicts
3671 dnl that are handled with CPP __RENAME() macro in signal.h.
3672 AC_DEFINE(SIGNAL_H_AHB, 1, [Define if AH_BOTTOM should include signal.h.])
3677 dnl Define symbols to identify the version of Unix this is.
3678 dnl Define all the symbols that apply correctly.
3679 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3680 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3681 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3682 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3683 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3689 dnl This symbol should be defined on AIX Version 3 ???????
3690 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3692 # error "_AIX not defined"
3694 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3698 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3702 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3703 AC_DEFINE(BSD4_2, [])
3704 AC_DEFINE(BSD_SYSTEM, [])
3705 dnl More specific than the above two. We cannot use __APPLE__ as this
3706 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3707 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3708 dnl distinguish OS X from pure Darwin.
3709 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3713 AC_DEFINE(BSD4_2, [])
3714 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3715 dnl Would not be needed with autoconf >= 2.67, where the
3716 dnl preprocessed output is accessible in "conftest.i".
3717 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3720 gnu | netbsd | openbsd )
3721 AC_DEFINE(BSD4_2, [])
3722 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3724 # error "BSD_SYSTEM not defined"
3726 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3729 gnu-linux | gnu-kfreebsd )
3731 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3737 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3743 AC_DEFINE(USG5_4, [])
3744 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3750 AC_DEFINE(USG5_4, [])
3751 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3757 AC_DEFINE(USG5_4, [])
3763 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3764 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3765 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3766 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3768 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3769 G_SLICE environment variable to "always-malloc" at startup, if
3774 dnl See comments in sysdep.c:sys_signal.
3775 dnl SA_RESTART resets the timeout of `select' on hpux11.
3776 dnl Defining BROKEN_SA_RESTART is not the same as undef'ing SA_RESTART.
3777 AC_DEFINE(BROKEN_SA_RESTART, 1, [Define if SA_RESTART should only
3778 be used in batch mode.])
3779 dnl It works to open the pty's tty in the parent (Emacs), then
3780 dnl close and reopen it in the child.
3781 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3782 works to open a pty's tty in the parent process, then close and
3783 reopen it in the child.])
3787 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3788 use VSUSP instead of VSWTCH.])
3789 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
3790 should not call setpgrp.])
3794 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
3799 # Set up the CFLAGS for real compilation, so we can substitute it.
3800 CFLAGS="$REAL_CFLAGS"
3801 CPPFLAGS="$REAL_CPPFLAGS"
3803 ## Hack to detect a buggy GCC version.
3804 if test "x$GCC" = xyes \
3805 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3806 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3807 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3808 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3811 version=$PACKAGE_VERSION
3813 ### Specify what sort of things we'll be editing into Makefile and config.h.
3814 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3816 AC_SUBST(configuration)
3821 AC_SUBST(exec_prefix)
3824 AC_SUBST(sharedstatedir)
3825 AC_SUBST(libexecdir)
3830 AC_SUBST(standardlisppath)
3831 AC_SUBST(locallisppath)
3833 AC_SUBST(x_default_search_path)
3835 AC_SUBST(archlibdir)
3840 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
3841 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
3842 ## end of LIBX_BASE, but nothing ever set it.
3843 AC_SUBST(LD_SWITCH_X_SITE)
3844 AC_SUBST(C_SWITCH_X_SITE)
3845 AC_SUBST(GNUSTEP_CFLAGS)
3847 ## Used in lwlib/Makefile.in.
3848 AC_SUBST(X_TOOLKIT_TYPE)
3852 AC_SUBST(ns_appbindir)
3853 AC_SUBST(ns_appresdir)
3855 AC_SUBST(GNU_OBJC_CFLAGS)
3856 AC_SUBST(OTHER_FILES)
3858 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
3859 [Define to the canonical Emacs configuration name.])
3860 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
3861 [Define to the options passed to configure.])
3862 if test -z "No longer used"; then
3863 AC_DEFINE(config_opsysfile, [], [Define to the used os dependent file.])
3869 if test "${HAVE_X_WINDOWS}" = "yes" ; then
3870 AC_DEFINE(HAVE_X_WINDOWS, 1,
3871 [Define to 1 if you want to use the X window system.])
3873 XOBJ="xterm.o xfns.o xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o xsettings.o xgselect.o"
3875 if test "$HAVE_XFT" = "yes"; then
3876 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
3877 elif test "$HAVE_FREETYPE" = "yes"; then
3878 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
3888 if test "${USE_X_TOOLKIT}" != "none" ; then
3890 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
3891 if test "${USE_X_TOOLKIT}" = "LUCID"; then
3892 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
3893 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
3894 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
3898 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
3899 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
3903 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
3904 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
3905 MOTIF_LIBW="MOTIF_LIBW -lXimp"
3909 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
3910 MOTIF_LIBW="$MOTIF_LIBW -li18n"
3913 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
3916 AC_SUBST(WIDGET_OBJ)
3919 case "$USE_X_TOOLKIT" in
3920 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
3921 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
3922 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
3924 AC_SUBST(TOOLKIT_LIBW)
3926 if test "$USE_X_TOOLKIT" = "none"; then
3927 LIBXT_OTHER="\$(LIBXSM)"
3928 OLDXMENU_TARGET="really-oldXMenu"
3930 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
3931 OLDXMENU_TARGET="really-lwlib"
3933 AC_SUBST(LIBXT_OTHER)
3935 ## The X Menu stuff is present in the X10 distribution, but missing
3936 ## from X11. If we have X10, just use the installed library;
3937 ## otherwise, use our own copy.
3938 if test "${HAVE_X11}" = "yes" ; then
3939 AC_DEFINE(HAVE_X11, 1,
3940 [Define to 1 if you want to use version 11 of X windows.
3941 Otherwise, Emacs expects to use version 10.])
3943 if test "$USE_X_TOOLKIT" = "none"; then
3944 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
3946 OLDXMENU="\${lwlibdir}/liblw.a"
3948 LIBXMENU="\$(OLDXMENU)"
3949 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
3950 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
3952 ## For a syntactically valid Makefile; not actually used for anything.
3953 ## See comments in src/Makefile.in.
3955 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
3956 if test "${HAVE_X_WINDOWS}" = "yes"; then
3965 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
3972 AC_SUBST(OLDXMENU_TARGET)
3975 AC_SUBST(LIBX_OTHER)
3976 AC_SUBST(OLDXMENU_DEPS)
3978 if test "${HAVE_MENUS}" = "yes" ; then
3979 AC_DEFINE(HAVE_MENUS, 1,
3980 [Define to 1 if you have mouse menus.
3981 (This is automatic if you use X, but the option to specify it remains.)
3982 It is also defined with other window systems that support xmenu.c.])
3985 if test "${GNU_MALLOC}" = "yes" ; then
3986 AC_DEFINE(GNU_MALLOC, 1,
3987 [Define to 1 if you want to use the GNU memory allocator.])
3991 if test "${REL_ALLOC}" = "yes" ; then
3992 AC_DEFINE(REL_ALLOC, 1,
3993 [Define REL_ALLOC if you want to use the relocating allocator for
3996 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
3998 AC_SUBST(RALLOC_OBJ)
4000 if test "$opsys" = "cygwin"; then
4001 CYGWIN_OBJ="sheap.o"
4002 ## Cygwin differs because of its unexec().
4004 POST_ALLOC_OBJ=lastfile.o
4007 PRE_ALLOC_OBJ=lastfile.o
4010 AC_SUBST(CYGWIN_OBJ)
4011 AC_SUBST(PRE_ALLOC_OBJ)
4012 AC_SUBST(POST_ALLOC_OBJ)
4014 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4015 # it temporarily reverts them to their pre-pkg-config values,
4016 # because gnulib needs to work with both src (which uses the
4017 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4018 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4019 # and it therefore needs to run in an environment where LIBS does not
4020 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4021 # for some package unrelated to lib-src.
4024 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4025 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4026 gl_ASSERT_NO_GNULIB_POSIXCHECK
4027 gl_ASSERT_NO_GNULIB_TESTS
4033 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4036 ## The -headerpad option tells ld (see man page) to leave room at the
4037 ## end of the header for adding load commands. Needed for dumping.
4038 ## 0x690 is the total size of 30 segment load commands (at 56
4039 ## each); under Cocoa 31 commands are required.
4040 if test "$HAVE_NS" = "yes"; then
4041 libs_nsgui="-framework AppKit"
4047 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4049 ## This is here because src/Makefile.in did some extra fiddling around
4050 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4051 ## #ifndef LD_SWITCH_SYSTEM
4052 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4053 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4054 ## not using gcc, darwin.
4055 ## Because this was done in src/Makefile.in, the resulting part of
4056 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4057 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4058 ## rather than LD_SWITCH_SYSTEM.
4059 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4060 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4063 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4064 ## find X at run-time.
4065 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4066 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4067 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4068 ## had different values in configure (in ac_link) and src/Makefile.in.
4069 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4070 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4072 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4075 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4076 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4079 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4085 ## gnu: GNU needs its own crt0.
4086 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4088 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4089 ## library search parth, i.e. it won't search /usr/lib for libc and
4090 ## friends. Using -nostartfiles instead avoids this problem, and
4091 ## will also work on earlier NetBSD releases.
4092 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4094 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4095 ## MkLinux/LinuxPPC needs this.
4096 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4098 case "$canonical" in
4099 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4105 if test "x$ORDINARY_LINK" = "xyes"; then
4108 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4110 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4111 ## freebsd, gnu-* not on powerpc*|s390x*.
4112 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4114 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4115 ## places that are difficult to figure out at make time. Fortunately,
4116 ## these same versions allow you to pass arbitrary flags on to the
4117 ## linker, so there is no reason not to use it as a linker.
4119 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4120 ## searching for libraries in its internal directories, so we have to
4121 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4122 LD_FIRSTFLAG="-nostdlib"
4125 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4126 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4128 AC_SUBST(LD_FIRSTFLAG)
4131 ## FIXME? The logic here is not precisely the same as that above.
4132 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4133 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4135 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4138 freebsd|netbsd|openbsd) LIB_GCC= ;;
4141 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4142 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4148 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4149 ## immediately undefine it again and redefine it to empty.
4150 ## Was the C_SWITCH_X_SITE part really necessary?
4151 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4157 ## Ask GCC where to find libgcc.a.
4158 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4164 ## If we're using X11/GNUstep, define some consequences.
4165 if test "$HAVE_X_WINDOWS" = "yes" || test "$HAVE_NS" = "yes"; then
4166 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4167 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4171 AH_TOP([/* GNU Emacs site configuration template file.
4173 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4174 Free Software Foundation, Inc.
4176 This file is part of GNU Emacs.
4178 GNU Emacs is free software: you can redistribute it and/or modify
4179 it under the terms of the GNU General Public License as published by
4180 the Free Software Foundation, either version 3 of the License, or
4181 (at your option) any later version.
4183 GNU Emacs is distributed in the hope that it will be useful,
4184 but WITHOUT ANY WARRANTY; without even the implied warranty of
4185 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4186 GNU General Public License for more details.
4188 You should have received a copy of the GNU General Public License
4189 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4192 /* No code in Emacs #includes config.h twice, but some bits of code
4193 intended to work with other packages as well (like gmalloc.c)
4194 think they can include it as many times as they like. */
4195 #ifndef EMACS_CONFIG_H
4196 #define EMACS_CONFIG_H
4199 AH_BOTTOM([#include <conf_post.h>
4201 #endif /* EMACS_CONFIG_H */
4210 #### Report on what we decided to do.
4211 #### Report GTK as a toolkit, even if it doesn't use Xt.
4212 #### It makes printing result more understandable as using GTK sets
4213 #### toolkit_scroll_bars to yes by default.
4214 if test "${HAVE_GTK}" = "yes"; then
4215 if test "${with_gtk3}" = "yes"; then
4223 Configured for \`${canonical}'.
4225 Where should the build process find the source code? ${srcdir}
4226 What compiler should emacs be built with? ${CC} ${CFLAGS}
4227 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4228 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4229 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4230 What window system should Emacs use? ${window_system}
4231 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4233 if test -n "${x_includes}"; then
4234 echo " Where do we find X Windows header files? ${x_includes}"
4236 echo " Where do we find X Windows header files? Standard dirs"
4238 if test -n "${x_libraries}"; then
4239 echo " Where do we find X Windows libraries? ${x_libraries}"
4241 echo " Where do we find X Windows libraries? Standard dirs"
4244 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4245 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4246 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4247 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4248 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4249 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4250 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4251 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4253 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4254 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4255 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4256 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4257 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4258 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4259 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4261 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4262 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4263 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4264 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4266 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4269 if test -n "${EMACSDATA}"; then
4270 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4272 if test -n "${EMACSDOC}"; then
4273 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4278 if test "$HAVE_NS" = "yes"; then
4280 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4281 The installed application will go to nextstep/Emacs.app and can be
4282 run or moved from there."
4283 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4284 echo "The application will be fully self-contained."
4286 echo "The lisp resources for the application will be installed under ${prefix}.
4287 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4288 to run if these resources are not installed."
4293 if test "${opsys}" = "cygwin"; then
4295 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4301 # Remove any trailing slashes in these variables.
4302 [test "${prefix}" != NONE &&
4303 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4304 test "${exec_prefix}" != NONE &&
4305 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4307 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4308 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4309 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4310 dnl (else you get "no `Makefile.am' found for any configure output").
4311 dnl This will work, but you get a config.status that is not quite right
4312 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4313 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4314 dnl it seems better to just live with the duplication.
4315 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"
4317 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4318 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4319 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4322 dnl test/ is not present in release tarfiles.
4323 opt_makefile=test/automated/Makefile
4325 if test -f $srcdir/${opt_makefile}.in; then
4326 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4327 dnl Again, it's best not to use a variable. Though you can add
4328 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4329 AC_CONFIG_FILES([test/automated/Makefile])
4333 dnl admin/ may or may not be present.
4334 opt_makefile=admin/unidata/Makefile
4336 if test -f $srcdir/${opt_makefile}.in; then
4337 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4338 AC_CONFIG_FILES([admin/unidata/Makefile])
4342 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4344 AC_SUBST(SUBDIR_MAKEFILES_IN)
4346 dnl Make the necessary directories, if they don't exist.
4347 AC_CONFIG_COMMANDS([mkdirs], [
4348 for dir in etc lisp ; do
4349 test -d ${dir} || mkdir ${dir}
4353 dnl You might wonder (I did) why epaths.h is generated by running make,
4354 dnl rather than just letting configure generate it from epaths.in.
4355 dnl One reason is that the various paths are not fully expanded (see above);
4356 dnl eg gamedir=${prefix}/var/games/emacs.
4357 dnl Secondly, the GNU Coding standards require that one should be able
4358 dnl to run `make prefix=/some/where/else' and override the values set
4359 dnl by configure. This also explains the `move-if-change' test and
4360 dnl the use of force in the `epaths-force' rule in Makefile.in.
4361 AC_CONFIG_COMMANDS([epaths], [
4362 echo creating src/epaths.h
4363 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4364 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4366 AC_CONFIG_COMMANDS([gdbinit], [
4367 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4368 echo creating src/.gdbinit
4369 echo source $srcdir/src/.gdbinit > src/.gdbinit