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, 1999-2011 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, 24.0.50)
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 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
41 '${datadir}/emacs/site-lisp'
42 lisppath='${locallisppath}:${lispdir}:${datadir}/emacs/${version}/leim'
43 etcdir='${datadir}/emacs/${version}/etc'
44 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
45 docdir='${datadir}/emacs/${version}/etc'
46 gamedir='${localstatedir}/games/emacs'
48 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
49 dnl Create a new --with option that defaults to being disabled.
50 dnl NAME is the base name of the option. The shell variable with_NAME
51 dnl will be set to either the user's value (if the option is
52 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
53 dnl option is not specified). Note that the shell variable name is
54 dnl constructed as autoconf does, by replacing non-alphanumeric
55 dnl characters with "_".
56 dnl HELP-STRING is the help text for the option.
57 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
58 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
59 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
62 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
63 dnl Create a new --with option that defaults to being enabled. NAME
64 dnl is the base name of the option. The shell variable with_NAME
65 dnl will be set either to 'no' (for a plain --without-NAME) or to
66 dnl 'yes' (if the option is not specified). Note that the shell
67 dnl variable name is constructed as autoconf does, by replacing
68 dnl non-alphanumeric characters with "_".
69 dnl HELP-STRING is the help text for the option.
70 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
71 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
72 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=yes])dnl
75 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
76 if test "$with_pop" = yes; then
77 AC_DEFINE(MAIL_USE_POP)
79 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
81 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
82 if test "$with_kerberos" != no; then
86 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
88 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
89 if test "${with_kerberos5}" != no; then
90 if test "${with_kerberos}" = no; then
94 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
97 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
98 dnl FIXME hesiod support may not be present, so it seems like an error
99 dnl to define, or at least use, this unconditionally.
100 if test "$with_hesiod" != no; then
101 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
104 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
105 if test "$with_mmdf" != no; then
106 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
109 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
110 if test "$with_mail_unlink" != no; then
111 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
114 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
115 [string giving default POP mail host])],
116 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
118 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
120 OPTION_DEFAULT_ON([sync-input],[process async input synchronously])
121 if test "$with_sync_input" = yes; then
122 AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])
125 dnl FIXME currently it is not the last.
126 dnl This should be the last --with option, because --with-x is
127 dnl added later on when we find the path of X, and it's best to
128 dnl keep them together visually.
129 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
130 [use an X toolkit (KIT one of: yes or gtk, gtk3, lucid or athena, motif, no)])],
131 [ case "${withval}" in
132 y | ye | yes ) val=gtk ;;
134 l | lu | luc | luci | lucid ) val=lucid ;;
135 a | at | ath | athe | athen | athena ) val=athena ;;
136 m | mo | mot | moti | motif ) val=motif ;;
137 g | gt | gtk ) val=gtk ;;
140 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
141 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk' or
142 `gtk3'. `yes' and `gtk' are synonyms. `athena' and `lucid' are synonyms.])
148 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
149 if test "$with_wide_int" = yes; then
150 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
153 dnl _ON results in a '--without' option in the --help output, so
154 dnl the help text should refer to "don't compile", etc.
155 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
156 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
157 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
158 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
159 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
160 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
161 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
162 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
164 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
165 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
166 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
168 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
169 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
170 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
171 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
173 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
174 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
175 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
176 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
177 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
178 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
180 ## For the times when you want to build Emacs but don't have
181 ## a suitable makeinfo, and can live without the manuals.
182 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
183 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
185 ## This is an option because I do not know if all info/man support
186 ## compressed files, nor how to test if they do so.
187 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
188 if test $with_compress_info = yes; then
195 AC_ARG_WITH([pkg-config-prog],dnl
196 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
197 [path to pkg-config for finding GTK and librsvg])])
198 if test "X${with_pkg_config_prog}" != X; then
199 if test "${with_pkg_config_prog}" != yes; then
200 PKG_CONFIG="${with_pkg_config_prog}"
205 AC_ARG_WITH([crt-dir],dnl
206 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
207 The default is /usr/lib, or /usr/lib64 on some platforms.])])
208 CRT_DIR="${with_crt_dir}"
210 AC_ARG_WITH(gameuser,dnl
211 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
212 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
213 && gameuser="${with_gameuser}"
214 test "X$gameuser" = X && gameuser=games
216 AC_ARG_WITH([gnustep-conf],dnl
217 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
218 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
219 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
220 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
221 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
223 AC_ARG_ENABLE(ns-self-contained,
224 [AS_HELP_STRING([--disable-ns-self-contained],
225 [disable self contained build under NeXTstep])],
226 EN_NS_SELF_CONTAINED=$enableval,
227 EN_NS_SELF_CONTAINED=yes)
229 AC_ARG_ENABLE(asserts,
230 [AS_HELP_STRING([--enable-asserts], [compile code with asserts enabled])],
231 USE_XASSERTS=$enableval,
234 AC_ARG_ENABLE(maintainer-mode,
235 [AS_HELP_STRING([--disable-maintainer-mode],
236 [disable make rules and dependencies not useful (and sometimes
237 confusing) to the casual installer])],
238 USE_MAINTAINER_MODE=$enableval,
239 USE_MAINTAINER_MODE=yes)
240 if test $USE_MAINTAINER_MODE = yes; then
247 AC_ARG_ENABLE(locallisppath,
248 [AS_HELP_STRING([--enable-locallisppath=PATH],
249 [directories Emacs should search for lisp files specific
251 if test "${enableval}" = "no"; then
253 elif test "${enableval}" != "yes"; then
254 locallisppath=${enableval}
257 AC_ARG_ENABLE(checking,
258 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
259 [enable expensive run-time checks. With LIST,
260 enable only specific categories of checks.
261 Categories are: all,yes,no.
262 Flags are: stringbytes, stringoverrun, stringfreelist,
263 xmallocoverrun, conslist])],
264 [ac_checking_flags="${enableval}"],[])
265 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
266 for check in $ac_checking_flags
269 # these set all the flags to specific states
270 yes) ac_enable_checking=1 ;;
271 no) ac_enable_checking= ;
272 ac_gc_check_stringbytes= ;
273 ac_gc_check_string_overrun= ;
274 ac_gc_check_string_free_list= ;
275 ac_xmalloc_overrun= ;
276 ac_gc_check_cons_list= ;;
277 all) ac_enable_checking=1 ;
278 ac_gc_check_stringbytes=1 ;
279 ac_gc_check_string_overrun=1 ;
280 ac_gc_check_string_free_list=1 ;
281 ac_xmalloc_overrun=1 ;
282 ac_gc_check_cons_list=1 ;;
283 # these enable particular checks
284 stringbytes) ac_gc_check_stringbytes=1 ;;
285 stringoverrun) ac_gc_check_string_overrun=1 ;;
286 stringfreelist) ac_gc_check_string_free_list=1 ;;
287 xmallocoverrun) ac_xmalloc_overrun=1 ;;
288 conslist) ac_gc_check_cons_list=1 ;;
289 *) AC_MSG_ERROR(unknown check category $check) ;;
294 if test x$ac_enable_checking != x ; then
295 AC_DEFINE(ENABLE_CHECKING, 1,
296 [Enable expensive run-time checking of data types?])
298 if test x$ac_gc_check_stringbytes != x ; then
299 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
300 [Define this temporarily to hunt a bug. If defined, the size of
301 strings is redundantly recorded in sdata structures so that it can
302 be compared to the sizes recorded in Lisp strings.])
304 if test x$ac_gc_check_string_overrun != x ; then
305 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
306 [Define this to check for short string overrun.])
308 if test x$ac_gc_check_string_free_list != x ; then
309 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
310 [Define this to check the string free list.])
312 if test x$ac_xmalloc_overrun != x ; then
313 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
314 [Define this to check for malloc buffer overrun.])
316 if test x$ac_gc_check_cons_list != x ; then
317 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
318 [Define this to check for errors in cons list.])
321 AC_ARG_ENABLE(use-lisp-union-type,
322 [AS_HELP_STRING([--enable-use-lisp-union-type],
323 [use a union for the Lisp_Object data type.
324 This is only useful for development for catching certain types of bugs.])],
325 if test "${enableval}" != "no"; then
326 AC_DEFINE(USE_LISP_UNION_TYPE, 1,
327 [Define this to use a lisp union for the Lisp_Object data type.])
331 AC_ARG_ENABLE(profiling,
332 [AS_HELP_STRING([--enable-profiling],
333 [build emacs with profiling support.
334 This might not work on all platforms])],
335 [ac_enable_profiling="${enableval}"],[])
336 if test x$ac_enable_profiling != x ; then
337 PROFILING_CFLAGS="-DPROFILING=1 -pg"
341 AC_SUBST(PROFILING_CFLAGS)
343 AC_ARG_ENABLE(autodepend,
344 [AS_HELP_STRING([--enable-autodepend],
345 [automatically generate dependencies to .h-files.
346 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
348 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
350 #### Make srcdir absolute, if it isn't already. It's important to
351 #### avoid running the path through pwd unnecessarily, since pwd can
352 #### give you automounter prefixes, which can go away. We do all this
353 #### so Emacs can find its files when run uninstalled.
354 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
359 ## We may be able to use the $PWD environment variable to make this
360 ## absolute. But sometimes PWD is inaccurate.
361 ## Note: we used to use ${PWD} at the end instead of `pwd`,
362 ## but that tested only for a well-formed and valid PWD,
363 ## it did not object when PWD was well-formed and valid but just wrong.
364 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
368 srcdir="`(cd ${srcdir}; pwd)`"
371 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
374 #### Given the configuration name, set machfile and opsysfile to the
375 #### names of the m/*.h and s/*.h files we should use.
377 ### Canonicalize the configuration name.
381 configuration=${host_alias-${build_alias-$host}}
383 dnl This used to use changequote, but, apart from `changequote is evil'
384 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
385 dnl the great gob of text. Thus it's not processed for possible expansion.
386 dnl Just make sure the brackets remain balanced.
388 dnl Since Emacs can't find matching pairs of quotes, boundaries are
389 dnl indicated by comments.
393 ### If you add support for a new configuration, add code to this
394 ### switch statement to recognize your configuration name and select
395 ### the appropriate operating system and machine description files.
397 ### You would hope that you could choose an m/*.h file pretty much
398 ### based on the machine portion of the configuration name, and an s/*.h
399 ### file based on the operating system portion. However, it turns out
400 ### that each m/*.h file is pretty manufacturer-specific - for
401 ### example mips.h is MIPS
402 ### So we basically have to have a special case for each
403 ### configuration name.
405 ### As far as handling version numbers on operating systems is
406 ### concerned, make sure things will fail in a fixable way. If
407 ### /etc/MACHINES doesn't say anything about version numbers, be
408 ### prepared to handle anything reasonably. If version numbers
409 ### matter, be sure /etc/MACHINES says something about it.
411 machine='' opsys='' unported=no
412 case "${canonical}" in
414 ## GNU/Linux and similar ports
418 alpha*) machine=alpha ;;
419 s390-*) machine=ibms390 ;;
420 s390x-*) machine=ibms390x ;;
421 powerpc*) machine=macppc ;;
422 sparc*) machine=sparc ;;
423 ia64*) machine=ia64 ;;
424 m68k*) machine=m68k ;;
425 x86_64*) machine=amdx86-64 ;;
432 case "${canonical}" in
433 alpha*) machine=alpha ;;
434 amd64-*|x86_64-*) machine=amdx86-64 ;;
435 ia64-*) machine=ia64 ;;
436 i[3456]86-*) machine=intel386 ;;
437 powerpc-*) machine=macppc ;;
438 sparc-*) machine=sparc ;;
439 sparc64-*) machine=sparc ;;
443 ## FreeBSD kernel + glibc based userland
446 case "${canonical}" in
447 alpha*) machine=alpha ;;
448 amd64-*|x86_64-*) machine=amdx86-64 ;;
449 ia64-*) machine=ia64 ;;
450 i[3456]86-*) machine=intel386 ;;
451 powerpc-*) machine=macppc ;;
452 sparc-*) machine=sparc ;;
453 sparc64-*) machine=sparc ;;
460 case "${canonical}" in
461 alpha*) machine=alpha ;;
462 x86_64-*) machine=amdx86-64 ;;
463 i[3456]86-*) machine=intel386 ;;
464 m68k-*) machine=m68k ;;
465 powerpc-*) machine=macppc ;;
466 sparc*-) machine=sparc ;;
467 vax-*) machine=vax ;;
474 case "${canonical}" in
475 alpha*) machine=alpha ;;
476 x86_64-*) machine=amdx86-64 ;;
477 i386-*) machine=intel386 ;;
478 powerpc-*) machine=macppc ;;
479 sparc*) machine=sparc ;;
480 vax-*) machine=vax ;;
484 ## Apple Darwin / Mac OS X
486 case "${canonical}" in
487 i[3456]86-* ) machine=intel386 ;;
488 powerpc-* ) machine=macppc ;;
489 x86_64-* ) machine=amdx86-64 ;;
493 # Define CPP as follows to make autoconf work correctly.
494 CPP="${CC-cc} -E -no-cpp-precomp"
495 # Use fink packages if available.
496 if test -d /sw/include && test -d /sw/lib; then
497 GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
498 CPP="${CPP} ${GCC_TEST_OPTIONS}"
499 NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
503 ## HP 9000 series 700 and 800, running HP/UX
507 hppa*-hp-hpux1[1-9]* )
509 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
513 rs6000-ibm-aix4.[23]* )
514 machine=ibmrs6000 opsys=aix4-2
516 powerpc-ibm-aix4.[23]* )
517 machine=ibmrs6000 opsys=aix4-2
519 rs6000-ibm-aix[56]* )
520 machine=ibmrs6000 opsys=aix4-2
522 powerpc-ibm-aix[56]* )
523 machine=ibmrs6000 opsys=aix4-2
526 ## Silicon Graphics machines
530 # Without defining _LANGUAGE_C, things get masked out in the headers
531 # so that, for instance, grepping for `free' in stdlib.h fails and
532 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
533 NON_GNU_CPP="/lib/cpp -D_LANGUAGE_C"
534 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
539 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
540 | x86_64-*-solaris2* | x86_64-*-sunos5*)
541 case "${canonical}" in
542 i[3456]86-*-* ) machine=intel386 ;;
543 amd64-*-*|x86_64-*-*) machine=amdx86-64 ;;
544 sparc* ) machine=sparc ;;
547 case "${canonical}" in
548 *-sunos5.6* | *-solaris2.6* )
550 NON_GNU_CPP=/usr/ccs/lib/cpp
553 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
555 emacs_check_sunpro_c=yes
556 NON_GNU_CPP=/usr/ccs/lib/cpp
558 *-sunos5* | *-solaris* )
560 emacs_check_sunpro_c=yes
561 NON_GNU_CPP=/usr/ccs/lib/cpp
564 ## Watch out for a compiler that we know will not work.
565 case "${canonical}" in
566 *-solaris* | *-sunos5* )
567 if [ "x$CC" = x/usr/ucb/cc ]; then
568 ## /usr/ucb/cc doesn't work;
569 ## we should find some other compiler that does work.
577 ## Intel 386 machines where we don't care about the manufacturer.
580 case "${canonical}" in
581 *-cygwin ) opsys=cygwin ;;
582 *-darwin* ) opsys=darwin
583 CPP="${CC-cc} -E -no-cpp-precomp"
585 *-sysv4.2uw* ) opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
586 *-sysv5uw* ) opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
587 *-sysv5OpenUNIX* ) opsys=unixware; NON_GNU_CPP=/lib/cpp ;;
588 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
597 ### If the code above didn't choose an operating system, just choose
598 ### an operating system based on the configuration name. You really
599 ### only want to use this when you have no idea what the right
600 ### operating system is; if you know what operating systems a machine
601 ### runs, it's cleaner to make it explicit in the case statement
603 if test x"${opsys}" = x; then
604 case "${canonical}" in
605 *-gnu* ) opsys=gnu ;;
615 if test $unported = yes; then
616 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
617 Check `etc/MACHINES' for recognized configuration names.])
620 if test -n "$machine"; then
621 machfile="m/${machine}.h"
625 opsysfile="s/${opsys}.h"
628 #### Choose a compiler.
629 test -n "$CC" && cc_specified=yes
631 # Save the value of CFLAGS that the user specified.
632 SPECIFIED_CFLAGS="$CFLAGS"
634 dnl Sets GCC=yes if using gcc.
638 # Initialize gnulib right after verifying that the C compiler works.
641 # On Suns, sometimes $CPP names a directory.
642 if test -n "$CPP" && test -d "$CPP"; then
646 ## If not using gcc, and on Solaris, and no CPP specified, see if
647 ## using a Sun compiler, which needs -Xs to prevent whitespace.
648 if test x"$GCC" != xyes && test x"$emacs_check_sunpro_c" = xyes && \
649 test x"$CPP" = x; then
650 AC_MSG_CHECKING([whether we are using a Sun C compiler])
651 AC_CACHE_VAL(emacs_cv_sunpro_c,
652 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
656 ]])], emacs_cv_sunpro_c=yes, emacs_cv_sunpro_c=no)])
657 AC_MSG_RESULT($emacs_cv_sunpro_c)
659 if test x"$emacs_cv_sunpro_c" = xyes; then
660 NON_GNU_CPP="$CC -E -Xs"
664 #### Some systems specify a CPP to use unless we are using GCC.
665 #### Now that we know whether we are using GCC, we can decide whether
666 #### to use that one.
667 if test "x$NON_GNU_CPP" != x && test x$GCC != xyes && test "x$CPP" = x
672 #### Some systems specify a CC to use unless we are using GCC.
673 #### Now that we know whether we are using GCC, we can decide whether
674 #### to use that one.
675 if test "x$NON_GNU_CC" != x && test x$GCC != xyes &&
676 test x$cc_specified != xyes
681 if test x$GCC = xyes; then
682 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
684 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
687 ### Use -Wdeclaration-after-statement if the compiler supports it
688 AC_MSG_CHECKING([whether gcc understands -Wdeclaration-after-statement])
689 SAVE_CFLAGS="$CFLAGS"
690 CFLAGS="$CFLAGS -Wdeclaration-after-statement"
691 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], has_option=yes, has_option=no)
692 if test $has_option = yes; then
693 C_WARNINGS_SWITCH="-Wdeclaration-after-statement $C_WARNINGS_SWITCH"
695 AC_MSG_RESULT($has_option)
696 CFLAGS="$SAVE_CFLAGS"
700 ### Use -Wold-style-definition if the compiler supports it
701 # This can be removed when conversion to standard C is finished.
702 AC_MSG_CHECKING([whether gcc understands -Wold-style-definition])
703 SAVE_CFLAGS="$CFLAGS"
704 CFLAGS="$CFLAGS -Wold-style-definition"
705 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], has_option=yes, has_option=no)
706 if test $has_option = yes; then
707 C_WARNINGS_SWITCH="-Wold-style-definition $C_WARNINGS_SWITCH"
709 AC_MSG_RESULT($has_option)
710 CFLAGS="$SAVE_CFLAGS"
714 ### Use -Wimplicit-function-declaration if the compiler supports it
715 AC_MSG_CHECKING([whether gcc understands -Wimplicit-function-declaration])
716 SAVE_CFLAGS="$CFLAGS"
717 CFLAGS="$CFLAGS -Wimplicit-function-declaration"
718 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], has_option=yes, has_option=no)
719 if test $has_option = yes; then
720 C_WARNINGS_SWITCH="-Wimplicit-function-declaration $C_WARNINGS_SWITCH"
722 AC_MSG_RESULT($has_option)
723 CFLAGS="$SAVE_CFLAGS"
727 AC_SUBST(C_WARNINGS_SWITCH)
730 #### Some other nice autoconf tests.
732 dnl checks for programs
735 if test "x$RANLIB" = x; then
739 ## Although we're running on an amd64 kernel, we're actually compiling for
740 ## the x86 architecture. The user should probably have provided an
741 ## explicit --build to `configure', but if everything else than the kernel
742 ## is running in i386 mode, we can help them out.
743 if test "$machine" = "amdx86-64"; then
744 AC_CHECK_DECL([i386])
745 if test "$ac_cv_have_decl_i386" = "yes"; then
746 canonical=`echo "$canonical" | sed -e 's/^amd64/i386/' -e 's/^x86_64/i386/'`
748 machfile="m/${machine}.h"
752 AC_PATH_PROG(INSTALL_INFO, install-info)
753 AC_PATH_PROG(INSTALL_INFO, install-info,, /usr/sbin)
754 AC_PATH_PROG(INSTALL_INFO, install-info,:, /sbin)
755 dnl Don't use GZIP, which is used by gzip for additional parameters.
756 AC_PATH_PROG(GZIP_PROG, gzip)
759 ## Need makeinfo >= 4.6 (?) to build the manuals.
760 AC_PATH_PROG(MAKEINFO, makeinfo, no)
761 dnl By this stage, configure has already checked for egrep and set EGREP,
762 dnl or exited with an error if no egrep was found.
763 if test "$MAKEINFO" != "no" && \
764 test x"`$MAKEINFO --version 2> /dev/null | $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[6-9]]|4\.[[1-5]][[0-9]]+)'`" = x; then
768 ## Makeinfo is unusual. For a released Emacs, the manuals are
769 ## pre-built, and not deleted by the normal clean rules. makeinfo is
770 ## therefore in the category of "special tools" not normally required, which
771 ## configure does not have to check for (eg autoconf itself).
772 ## In a Bazaar checkout on the other hand, the manuals are not included.
773 ## So makeinfo is a requirement to build from Bazaar, and configure
774 ## should test for it as it does for any other build requirement.
775 ## We use the presence of $srcdir/info/emacs to distinguish a release,
776 ## with pre-built manuals, from a Bazaar checkout.
779 if test "$MAKEINFO" = "no"; then
781 if test "x${with_makeinfo}" = "xno"; then
783 elif test ! -e $srcdir/info/emacs; then
784 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.6, and your
785 source tree does not seem to have pre-built manuals in the `info' directory.
786 Either install a suitable version of makeinfo, or re-run configure
787 with the `--without-makeinfo' option to build without the manuals.] )
790 AC_SUBST(HAVE_MAKEINFO)
792 dnl Add our options to ac_link now, after it is set up.
794 if test x$GCC = xyes; then
795 test "x$GCC_LINK_TEST_OPTIONS" != x && \
796 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
798 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
799 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
802 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
803 dnl If we can link with the flag, it shouldn't do any harm anyhow.
804 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
805 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
806 dnl if not built to support GNU ld.
808 late_LDFLAGS=$LDFLAGS
809 if test x$GCC = xyes; then
810 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
812 LDFLAGS="$LDFLAGS -znocombreloc"
815 AC_MSG_CHECKING([for -znocombreloc])
816 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
817 [AC_MSG_RESULT(yes)],
818 LDFLAGS=$late_LDFLAGS
822 # The value of CPP is a quoted variable reference, so we need to do this
823 # to get its actual value...
824 CPP=`eval "echo $CPP"`
827 dnl The function dump-emacs will not be defined and temacs will do
828 dnl (load "loadup") automatically unless told otherwise.
829 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
831 your-opsys-here) CANNOT_DUMP=yes ;;
834 test "$CANNOT_DUMP" = "yes" && \
835 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
837 AC_SUBST(CANNOT_DUMP)
842 # MSDOS uses unexcoff.o
843 # MSWindows uses unexw32.o
851 UNEXEC_OBJ=unexmacosx.o
854 UNEXEC_OBJ=unexhp9k800.o
857 # Use the Solaris dldump() function, called from unexsol.c, to dump
858 # emacs, instead of the generic ELF dump code found in unexelf.c.
859 # The resulting binary has a complete symbol table, and is better
860 # for debugging and other observability tools (debuggers, pstack, etc).
862 # If you encounter a problem using dldump(), please consider sending
863 # a message to the OpenSolaris tools-linking mailing list:
864 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
866 # It is likely that dldump() works with older Solaris too, but this has
867 # not been tested, so for now this change is for Solaris 10 or newer.
875 ## Let `ld' find image libs and similar things in /usr/local/lib.
876 ## The system compiler, GCC, has apparently been modified to not
877 ## look there, contrary to what a stock GCC would do.
878 LD_SWITCH_SYSTEM=-L/usr/local/lib
882 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
883 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
887 LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
891 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
892 ## otherwise Emacs dumps core on elf systems.
893 LD_SWITCH_SYSTEM="-Z"
896 AC_SUBST(LD_SWITCH_SYSTEM)
898 ac_link="$ac_link $LD_SWITCH_SYSTEM"
900 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_AUX,
901 ## which has not been defined yet. When this was handled with cpp,
902 ## it was expanded to null when configure sourced the s/*.h file.
903 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
904 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
905 ## (or somesuch), but because it is supposed to go at the _front_
906 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
907 ## Compare with the gnu-linux case below, which added to the end
908 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
909 ## LD_SWITCH_SYSTEM_TEMACS.
912 ## _AUX_RPATH is like _AUX, but uses -rpath instead of -R.
913 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_AUX_RPATH) $LD_SWITCH_SYSTEM" ;;
918 if test "$machine" = "alpha"; then
919 AC_CHECK_DECL([__ELF__])
920 if test "$ac_cv_have_decl___ELF__" = "yes"; then
921 ## With ELF, make sure that all common symbols get allocated to in the
922 ## data section. Otherwise, the dump of temacs may miss variables in
923 ## the shared library that have been initialized. For example, with
924 ## GNU libc, __malloc_initialized would normally be resolved to the
925 ## shared library's .bss section, which is fatal.
926 if test "x$GCC" = "xyes"; then
927 C_SWITCH_MACHINE="-fno-common"
929 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
932 UNEXEC_OBJ=unexalpha.o
935 AC_SUBST(C_SWITCH_MACHINE)
940 ## Some programs in src produce warnings saying certain subprograms
941 ## are too complex and need a MAXMEM value greater than 2000 for
942 ## additional optimization. --nils@exp-math.uni-essen.de
943 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
944 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
945 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
946 ## It is redundant in glibc2, since we define _GNU_SOURCE.
947 AC_SUBST(C_SWITCH_SYSTEM)
952 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
953 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
955 freebsd) LIBS_SYSTEM="-lutil" ;;
957 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
959 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
961 ## Motif needs -lgen.
962 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
964 AC_SUBST(LIBS_SYSTEM)
967 ### Make sure subsequent tests use flags consistent with the build flags.
969 if test x"${OVERRIDE_CPPFLAGS}" != x; then
970 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
972 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
975 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
976 AC_DEFUN([AC_TYPE_SIZE_T])
977 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
978 AC_DEFUN([AC_TYPE_UID_T])
980 dnl Do this early because it can frob feature test macros for Unix-98 &c.
988 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
992 START_FILES='pre-crt0.o'
995 ## Adding -lm confuses the dynamic linker, so omit it.
997 START_FILES='pre-crt0.o'
1000 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1001 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1003 gnu-linux | gnu-kfreebsd )
1004 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1005 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1007 hpux10-20 | hpux11 )
1009 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1011 dnl NB this may be adjusted below.
1013 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1014 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1019 AC_SUBST(START_FILES)
1021 dnl Not all platforms use crtn.o files. Check if the current one does.
1024 for file in x $LIB_STANDARD $START_FILES; do
1026 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1030 if test "x$crt_files" != x; then
1032 ## If user specified a crt-dir, use that unconditionally.
1035 if test "X$CRT_DIR" = "X"; then
1037 CRT_DIR=/usr/lib # default
1039 case "$canonical" in
1040 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1041 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1042 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1043 ## For anything else (eg /usr/lib32), it is up the user to specify
1044 ## the location (bug#5655).
1045 ## Test for crtn.o, not just the directory, because sometimes the
1046 ## directory exists but does not have the relevant files (bug#1287).
1047 ## FIXME better to test for binary compatibility somehow.
1048 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1051 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1055 hpux10-20) CRT_DIR=/lib ;;
1058 test "x${GCC}" = xyes && crt_gcc=yes
1064 for file in $crt_files; do
1066 ## If we're using gcc, try to determine it automatically by asking
1067 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1068 ## system-dependent default from above.]
1069 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1071 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1074 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1079 dnl We expect all the files to be in a single directory, so after the
1080 dnl first there is no point asking gcc.
1083 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1086 test "x$crt_missing" = x || \
1087 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1088 Try using the --with-crt-dir option.])
1090 fi # crt_files != ""
1096 if test -f $CRT_DIR/crti.o; then
1098 test -f $CRT_DIR/crtn.o || \
1099 AC_MSG_ERROR([Required file not found: crtn.o])
1101 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1102 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1108 dnl This function definition taken from Gnome 2.0
1109 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1110 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1111 dnl also defines GSTUFF_PKG_ERRORS on error
1112 AC_DEFUN([PKG_CHECK_MODULES], [
1115 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1117 if test "$PKG_CONFIG" = "no" ; then
1118 ifelse([$4], , [AC_MSG_ERROR([
1119 *** 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])
1121 PKG_CONFIG_MIN_VERSION=0.9.0
1122 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1123 AC_MSG_CHECKING(for $2)
1125 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD; then
1129 AC_MSG_CHECKING($1_CFLAGS)
1130 $1_CFLAGS=`$PKG_CONFIG --cflags "$2"|sed -e 's,///*,/,g'`
1131 AC_MSG_RESULT($$1_CFLAGS)
1133 AC_MSG_CHECKING($1_LIBS)
1134 $1_LIBS=`$PKG_CONFIG --libs "$2"|sed -e 's,///*,/,g'`
1135 AC_MSG_RESULT($$1_LIBS)
1140 ## If we have a custom action on failure, don't print errors, but
1141 ## do set a variable so people can do so.
1142 $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1143 ifelse([$4], ,echo $$1_PKG_ERRORS,)
1149 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1150 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1154 if test $succeeded = yes; then
1155 ifelse([$3], , :, [$3])
1157 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.])], [$4])
1162 if test "${with_sound}" != "no"; then
1163 # Sound support for GNU/Linux and the free BSDs.
1164 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1165 have_sound_header=yes)
1166 # Emulation library used on NetBSD.
1167 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1171 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1172 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1173 if test $HAVE_ALSA = yes; then
1174 SAVE_CFLAGS="$CFLAGS"
1175 SAVE_LDFLAGS="$LDFLAGS"
1176 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1177 LDFLAGS="$ALSA_LIBS $LDFLAGS"
1178 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1179 emacs_alsa_normal=yes,
1180 emacs_alsa_normal=no)
1181 if test "$emacs_alsa_normal" != yes; then
1182 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1183 [[snd_lib_error_set_handler (0);]])],
1184 emacs_alsa_subdir=yes,
1185 emacs_alsa_subdir=no)
1186 if test "$emacs_alsa_subdir" != yes; then
1187 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1189 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1192 CFLAGS="$SAVE_CFLAGS"
1193 LDFLAGS="$SAVE_LDFLAGS"
1194 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1195 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1196 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1199 dnl Define HAVE_SOUND if we have sound support. We know it works and
1200 dnl compiles only on the specified platforms. For others, it
1201 dnl probably doesn't make sense to try.
1202 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1204 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1205 gnu-linux|freebsd|netbsd)
1206 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1211 AC_SUBST(CFLAGS_SOUND)
1214 dnl checks for header files
1215 AC_CHECK_HEADERS(sys/select.h sys/time.h unistd.h utime.h \
1216 linux/version.h sys/systeminfo.h \
1217 stdio_ext.h fcntl.h coff.h pty.h sys/mman.h \
1218 sys/vlimit.h sys/resource.h locale.h sys/_mbstate_t.h \
1219 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1221 AC_MSG_CHECKING(if personality LINUX32 can be set)
1222 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1223 emacs_cv_personality_linux32=yes,
1224 emacs_cv_personality_linux32=no)
1225 AC_MSG_RESULT($emacs_cv_personality_linux32)
1227 if test $emacs_cv_personality_linux32 = yes; then
1228 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1229 [Define to 1 if personality LINUX32 can be set.])
1232 dnl On Solaris 8 there's a compilation warning for term.h because
1233 dnl it doesn't define `bool'.
1234 AC_CHECK_HEADERS(term.h, , , -)
1236 AC_CHECK_DECLS([sys_siglist])
1237 if test $ac_cv_have_decl_sys_siglist != yes; then
1238 # For Tru64, at least:
1239 AC_CHECK_DECLS([__sys_siglist])
1240 if test $ac_cv_have_decl___sys_siglist = yes; then
1241 AC_DEFINE(sys_siglist, __sys_siglist,
1242 [Define to any substitute for sys_siglist.])
1247 dnl Some systems have utime.h but don't declare the struct anyplace.
1248 AC_CACHE_CHECK(for struct utimbuf, emacs_cv_struct_utimbuf,
1249 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#ifdef TIME_WITH_SYS_TIME
1250 #include <sys/time.h>
1253 #ifdef HAVE_SYS_TIME_H
1254 #include <sys/time.h>
1261 #endif]], [[static struct utimbuf x; x.actime = x.modtime;]])],
1262 emacs_cv_struct_utimbuf=yes, emacs_cv_struct_utimbuf=no))
1263 if test $emacs_cv_struct_utimbuf = yes; then
1264 AC_DEFINE(HAVE_STRUCT_UTIMBUF, 1, [Define to 1 if `struct utimbuf' is declared by <utime.h>.])
1267 dnl Check for speed_t typedef.
1268 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1269 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1270 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1271 if test $emacs_cv_speed_t = yes; then
1272 AC_DEFINE(HAVE_SPEED_T, 1,
1273 [Define to 1 if `speed_t' is declared by <termios.h>.])
1276 AC_CACHE_CHECK(for struct timeval, emacs_cv_struct_timeval,
1277 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#ifdef TIME_WITH_SYS_TIME
1278 #include <sys/time.h>
1281 #ifdef HAVE_SYS_TIME_H
1282 #include <sys/time.h>
1286 #endif]], [[static struct timeval x; x.tv_sec = x.tv_usec;]])],
1287 emacs_cv_struct_timeval=yes, emacs_cv_struct_timeval=no))
1288 HAVE_TIMEVAL=$emacs_cv_struct_timeval
1289 if test $emacs_cv_struct_timeval = yes; then
1290 AC_DEFINE(HAVE_TIMEVAL, 1, [Define to 1 if `struct timeval' is declared by <sys/time.h>.])
1293 AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1294 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]],
1295 [[static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;]])],
1296 emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1297 HAVE_EXCEPTION=$emacs_cv_struct_exception
1298 if test $emacs_cv_struct_exception != yes; then
1299 AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])
1302 AC_CHECK_HEADERS(sys/socket.h)
1303 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1304 #if HAVE_SYS_SOCKET_H
1305 #include <sys/socket.h>
1307 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1308 #if HAVE_SYS_SOCKET_H
1309 #include <sys/socket.h>
1311 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1312 #if HAVE_SYS_SOCKET_H
1313 #include <sys/socket.h>
1315 AC_CHECK_FUNCS(getifaddrs freeifaddrs)
1317 dnl checks for structure members
1320 AC_CHECK_MEMBER(struct tm.tm_gmtoff,
1321 [AC_DEFINE(HAVE_TM_GMTOFF, 1,
1322 [Define to 1 if `tm_gmtoff' is member of `struct tm'.])],,
1323 [#include <time.h>])
1324 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1325 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1326 struct ifreq.ifr_addr,
1327 struct ifreq.ifr_addr.sa_len], , ,
1328 [AC_INCLUDES_DEFAULT
1329 #if HAVE_SYS_SOCKET_H
1330 #include <sys/socket.h>
1336 dnl checks for compiler characteristics
1338 dnl Testing __STDC__ to determine prototype support isn't good enough.
1339 dnl DEC C, for instance, doesn't define it with default options, and
1340 dnl is used on 64-bit systems (OSF Alphas). Similarly for volatile
1345 AC_CACHE_CHECK([for void * support], emacs_cv_void_star,
1346 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[void * foo;]])],
1347 emacs_cv_void_star=yes, emacs_cv_void_star=no)])
1348 if test $emacs_cv_void_star = yes; then
1349 AC_DEFINE(POINTER_TYPE, void)
1351 AC_DEFINE(POINTER_TYPE, char)
1353 AH_TEMPLATE(POINTER_TYPE,
1354 [Define as `void' if your compiler accepts `void *'; otherwise
1355 define as `char'.])dnl
1357 dnl Check for endianess
1360 AC_CACHE_CHECK([for __attribute__ ((__aligned__ (expr)))],
1361 [emacs_cv_attribute_aligned],
1364 [[char __attribute__ ((__aligned__ (1 << 3))) c;]],
1366 [emacs_cv_attribute_aligned=yes],
1367 [emacs_cv_attribute_aligned=no])])
1368 if test $emacs_cv_attribute_aligned = yes; then
1369 AC_DEFINE([HAVE_ATTRIBUTE_ALIGNED], 1,
1370 [Define to 1 if GCC-style __attribute__ ((__aligned__ (expr))) works.])
1373 dnl check for Make feature
1379 dnl check for GNU Make if we have GCC and autodepend is on.
1380 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1381 AC_MSG_CHECKING([whether we are using GNU Make])
1383 testval=`make --version 2>/dev/null | grep 'GNU Make'`
1384 if test "x$testval" != x; then
1387 ac_enable_autodepend=no
1389 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1390 if test $HAVE_GNU_MAKE = yes; then
1391 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1392 SAVE_CFLAGS="$CFLAGS"
1393 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1394 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1395 CFLAGS="$SAVE_CFLAGS"
1396 test -f deps.d || ac_enable_autodepend=no
1398 AC_MSG_RESULT([$ac_enable_autodepend])
1400 if test $ac_enable_autodepend = yes; then
1401 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1402 ## In parallel builds, another make might create depdir between
1403 ## the first test and mkdir, so stick another test on the end.
1404 ## Or use install-sh -d? mkdir -p is not portable.
1405 MKDEPDIR='test -d ${DEPDIR} || mkdir ${DEPDIR} || test -d ${DEPDIR}'
1406 deps_frag=autodeps.mk
1409 deps_frag=$srcdir/src/$deps_frag
1412 AC_SUBST_FILE(deps_frag)
1415 lisp_frag=$srcdir/src/lisp.mk
1416 AC_SUBST_FILE(lisp_frag)
1419 dnl checks for operating system services
1420 AC_SYS_LONG_FILE_NAMES
1422 #### Choose a window system.
1425 if test "$no_x" = yes; then
1431 ## Workaround for bug in autoconf <= 2.62.
1432 ## http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01551.html
1433 ## No need to do anything special for these standard directories.
1434 if test -n "${x_libraries}" && test x"${x_libraries}" != xNONE; then
1436 x_libraries=`echo :${x_libraries}: | sed -e 's|:/usr/lib64:|:|g' -e 's|:/lib64:|:|g' -e 's|^:||' -e 's|:$||'`
1440 LD_SWITCH_X_SITE_AUX=
1441 LD_SWITCH_X_SITE_AUX_RPATH=
1442 if test "${x_libraries}" != NONE; then
1443 if test -n "${x_libraries}"; then
1444 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1445 LD_SWITCH_X_SITE_AUX=-R`echo ${x_libraries} | sed -e "s/:/ -R/g"`
1446 LD_SWITCH_X_SITE_AUX_RPATH=`echo ${LD_SWITCH_X_SITE_AUX} | sed -e 's/-R/-Wl,-rpath,/'`
1448 x_default_search_path=""
1449 x_search_path=${x_libraries}
1450 if test -z "${x_search_path}"; then
1451 x_search_path=/usr/lib
1453 for x_library in `echo ${x_search_path}: | \
1454 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1456 ${x_library}/X11/%L/%T/%N%C%S:\
1457 ${x_library}/X11/%l/%T/%N%C%S:\
1458 ${x_library}/X11/%T/%N%C%S:\
1459 ${x_library}/X11/%L/%T/%N%S:\
1460 ${x_library}/X11/%l/%T/%N%S:\
1461 ${x_library}/X11/%T/%N%S"
1462 if test x"${x_default_search_path}" = x; then
1463 x_default_search_path=${x_search_path}
1465 x_default_search_path="${x_search_path}:${x_default_search_path}"
1469 AC_SUBST(LD_SWITCH_X_SITE_AUX)
1470 AC_SUBST(LD_SWITCH_X_SITE_AUX_RPATH)
1472 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1473 C_SWITCH_X_SITE=-I`echo ${x_includes} | sed -e "s/:/ -I/g"`
1476 if test x"${x_includes}" = x; then
1477 bitmapdir=/usr/include/X11/bitmaps
1479 # accumulate include directories that have X11 bitmap subdirectories
1481 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1482 if test -d "${bmd}/X11/bitmaps"; then
1483 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1485 if test -d "${bmd}/bitmaps"; then
1486 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1489 if test ${bmd_acc} != "dummyval"; then
1490 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1497 tmp_CPPFLAGS="$CPPFLAGS"
1498 tmp_CFLAGS="$CFLAGS"
1499 CPPFLAGS="$CPPFLAGS -x objective-c"
1500 CFLAGS="$CFLAGS -x objective-c"
1501 TEMACS_LDFLAGS2="\${LDFLAGS}"
1503 dnl I don't think it's especially important, but src/Makefile.in
1504 dnl (now the only user of ns_appdir) used to go to the trouble of adding a
1505 dnl trailing "/" to it, so now we do it here.
1506 if test "${with_ns}" != no; then
1507 if test "${opsys}" = darwin; then
1509 ns_appdir=`pwd`/nextstep/Emacs.app
1510 ns_appbindir=${ns_appdir}/Contents/MacOS/
1511 ns_appresdir=${ns_appdir}/Contents/Resources
1512 ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base
1513 elif test -f $GNUSTEP_CONFIG_FILE; then
1515 ns_appdir=`pwd`/nextstep/Emacs.app
1516 ns_appbindir=${ns_appdir}/
1517 ns_appresdir=${ns_appdir}/Resources
1518 ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base
1519 dnl FIXME sourcing this several times in subshells seems inefficient.
1520 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1521 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1522 dnl I seemed to need these as well with GNUstep-startup 0.25.
1523 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1524 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1525 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1526 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1527 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1528 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1529 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1530 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1531 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1535 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1536 dnl If they had chosen to either define it or not, we could have
1537 dnl just used AC_CHECK_DECL here.
1538 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1539 emacs_cv_objc_exceptions,
1540 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1541 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1545 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1546 if test $emacs_cv_objc_exceptions = yes; then
1547 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1548 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1549 [Define if GNUstep uses ObjC exceptions.])
1550 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1554 dnl This is only used while we test the NS headers, it gets reset below.
1555 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1557 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1558 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1559 files are missing or cannot be compiled.])])
1560 NS_HAVE_NSINTEGER=yes
1561 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1563 ns_have_nsinteger=yes,
1564 ns_have_nsinteger=no)
1565 if test $ns_have_nsinteger = no; then
1566 NS_HAVE_NSINTEGER=no
1569 AC_SUBST(TEMACS_LDFLAGS2)
1574 if test "${HAVE_NS}" = yes; then
1575 window_system=nextstep
1577 # set up packaging dirs
1578 exec_prefix=${ns_appbindir}
1579 libexecdir=${ns_appbindir}/libexec
1580 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1581 prefix=${ns_appresdir}
1583 ns_frag=$srcdir/src/ns.mk
1584 NS_OBJ="fontset.o fringe.o image.o"
1585 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1587 CFLAGS="$tmp_CFLAGS"
1588 CPPFLAGS="$tmp_CPPFLAGS"
1590 AC_SUBST(NS_OBJC_OBJ)
1591 AC_SUBST(LIB_STANDARD)
1592 AC_SUBST_FILE(ns_frag)
1594 case "${window_system}" in
1598 case "${with_x_toolkit}" in
1599 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1600 motif ) USE_X_TOOLKIT=MOTIF ;;
1602 dnl Dont set this for GTK. A lot of tests below assumes Xt when
1603 dnl USE_X_TOOLKIT is set.
1604 USE_X_TOOLKIT=none ;;
1605 gtk3 ) with_gtk3=yes
1606 USE_X_TOOLKIT=none ;;
1607 no ) USE_X_TOOLKIT=none ;;
1608 dnl If user did not say whether to use a toolkit, make this decision later:
1609 dnl use the toolkit if we have gtk, or X11R5 or newer.
1610 * ) USE_X_TOOLKIT=maybe ;;
1620 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1621 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1622 if test "$HAVE_XSERVER" = true ||
1623 test -n "$DISPLAY" ||
1624 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1625 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1626 were found. You should install the relevant development files for X
1627 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1628 sure you have development files for image handling, i.e.
1629 tiff, gif, jpeg, png and xpm.
1630 If you are sure you want Emacs compiled without X window support, pass
1636 ### If we're using X11, we should use the X menu package.
1639 yes ) HAVE_MENUS=yes ;;
1642 # Do the opsystem or machine files prohibit the use of the GNU malloc?
1643 # Assume not, until told otherwise.
1646 AC_CHECK_FUNC(malloc_get_state, ,doug_lea_malloc=no)
1647 AC_CHECK_FUNC(malloc_set_state, ,doug_lea_malloc=no)
1648 AC_CACHE_CHECK(whether __after_morecore_hook exists,
1649 emacs_cv_var___after_morecore_hook,
1650 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern void (* __after_morecore_hook)();]],[[__after_morecore_hook = 0]])],
1651 emacs_cv_var___after_morecore_hook=yes,
1652 emacs_cv_var___after_morecore_hook=no)])
1653 if test $emacs_cv_var___after_morecore_hook = no; then
1658 dnl See comments in aix4-2.h about maybe using system malloc there.
1661 ## darwin ld insists on the use of malloc routines in the System framework.
1662 darwin|sol2-10) system_malloc=yes ;;
1665 if test "${system_malloc}" = "yes"; then
1666 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1669 (The GNU allocators don't work with this system configuration.)"
1673 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1674 VMLIMIT_OBJ=vm-limit.o
1676 AC_SUBST(GMALLOC_OBJ)
1677 AC_SUBST(VMLIMIT_OBJ)
1679 if test "$doug_lea_malloc" = "yes" ; then
1680 if test "$GNU_MALLOC" = yes ; then
1682 (Using Doug Lea's new malloc from the GNU C Library.)"
1684 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1685 [Define to 1 if you are using the GNU C Library.])
1687 ## Use mmap directly for allocating larger buffers.
1688 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1689 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1690 ## Does the AC_FUNC_MMAP test below make this check unecessary?
1692 gnu*) REL_ALLOC=no ;;
1696 if test x"${REL_ALLOC}" = x; then
1697 REL_ALLOC=${GNU_MALLOC}
1700 use_mmap_for_buffers=no
1702 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1706 if test $use_mmap_for_buffers = yes; then
1707 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1711 LIBS="$LIBS_SYSTEM $LIBS"
1713 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1714 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1715 AC_CHECK_LIB(dnet, dnet_ntoa)
1716 dnl This causes -lresolv to get used in subsequent tests,
1717 dnl which causes failures on some systems such as HPUX 9.
1718 dnl AC_CHECK_LIB(resolv, gethostbyname)
1720 dnl FIXME replace main with a function we actually want from this library.
1721 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1723 dnl Check if pthreads is available.
1725 AC_CHECK_HEADERS(pthread.h)
1726 if test "$ac_cv_header_pthread_h"; then
1727 AC_CHECK_LIB(pthread, pthread_self, HAVE_PTHREAD=yes)
1729 if test "$HAVE_PTHREAD" = yes; then
1730 case "${canonical}" in
1732 *) LIB_PTHREAD="-lpthread" ;;
1734 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1736 AC_SUBST([LIB_PTHREAD])
1738 AC_CHECK_LIB(pthreads, cma_open)
1740 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1741 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1742 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1743 ## added to LIBS in configure would never contain the pthreads part,
1744 ## but the value used in Makefiles might. FIXME?
1746 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1747 ## be harmless on older versions of X where it happens to exist.
1748 test "$opsys" = "aix4-2" && \
1749 test $ac_cv_lib_pthreads_cma_open = yes && \
1750 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1752 dnl Check for need for bigtoc support on IBM AIX
1756 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1758 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1759 *) gdb_cv_bigtoc=-bbigtoc ;;
1762 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1763 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1768 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1769 # used for the tests that follow. We set them back to REAL_CFLAGS and
1770 # REAL_CPPFLAGS later on.
1772 REAL_CFLAGS="$CFLAGS"
1773 REAL_CPPFLAGS="$CPPFLAGS"
1775 if test "${HAVE_X11}" = "yes"; then
1776 DEFS="$C_SWITCH_X_SITE $DEFS"
1777 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1779 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1780 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1782 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1783 # This is handled by LD_SWITCH_X_SITE_AUX during the real build,
1784 # but it's more convenient here to set LD_RUN_PATH
1785 # since this also works on hosts that don't understand LD_SWITCH_X_SITE_AUX.
1786 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1787 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1791 if test "${opsys}" = "gnu-linux"; then
1792 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1793 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1794 [[XOpenDisplay ("foo");]])],
1795 [xlinux_first_failure=no],
1796 [xlinux_first_failure=yes])
1797 if test "${xlinux_first_failure}" = "yes"; then
1798 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1799 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1800 OLD_CPPFLAGS="$CPPFLAGS"
1802 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1803 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1804 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1805 LIBS="$LIBS -b i486-linuxaout"
1806 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1807 [[XOpenDisplay ("foo");]])],
1808 [xlinux_second_failure=no],
1809 [xlinux_second_failure=yes])
1810 if test "${xlinux_second_failure}" = "yes"; then
1811 # If we get the same failure with -b, there is no use adding -b.
1812 # So take it out. This plays safe.
1813 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1814 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1815 CPPFLAGS="$OLD_CPPFLAGS"
1826 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1827 # header files included from there.
1828 AC_MSG_CHECKING(for Xkb)
1829 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1830 #include <X11/XKBlib.h>]],
1831 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1832 emacs_xkb=yes, emacs_xkb=no)
1833 AC_MSG_RESULT($emacs_xkb)
1834 if test $emacs_xkb = yes; then
1835 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1838 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1839 XScreenNumberOfScreen XSetWMProtocols)
1842 if test "${window_system}" = "x11"; then
1843 AC_MSG_CHECKING(X11 version 6)
1844 AC_CACHE_VAL(emacs_cv_x11_version_6,
1845 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1846 [[#if XlibSpecificationRelease < 6
1849 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1850 if test $emacs_cv_x11_version_6 = yes; then
1851 AC_MSG_RESULT(6 or newer)
1852 AC_DEFINE(HAVE_X11R6, 1,
1853 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1854 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1855 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1859 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1860 [Define if you have usable X11R6-style XIM support.])
1864 AC_MSG_RESULT(before 6)
1869 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1871 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1872 if test "${with_rsvg}" != "no"; then
1873 RSVG_REQUIRED=2.11.0
1874 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1876 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1877 AC_SUBST(RSVG_CFLAGS)
1880 if test $HAVE_RSVG = yes; then
1881 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1882 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1883 LIBS="$RSVG_LIBS $LIBS"
1889 if test "${HAVE_X11}" = "yes"; then
1890 if test "${with_imagemagick}" != "no"; then
1891 ## 6.2.8 is the earliest version known to work, but earlier versions
1892 ## might work - let us know if you find one.
1893 ## 6.0.7 does not work. See bug#7955.
1894 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1895 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1896 AC_SUBST(IMAGEMAGICK_CFLAGS)
1897 AC_SUBST(IMAGEMAGICK_LIBS)
1899 if test $HAVE_IMAGEMAGICK = yes; then
1900 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1901 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1902 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1903 AC_CHECK_FUNCS(MagickExportImagePixels)
1911 if test "${with_gtk3}" = "yes"; then
1914 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1916 dnl Checks for libraries.
1917 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1918 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1919 AC_MSG_ERROR($GTK_PKG_ERRORS)
1921 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1922 GTK_OBJ=emacsgtkfixed.o
1925 if test "$pkg_check_gtk" != "yes"; then
1927 if test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1930 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1932 dnl Checks for libraries.
1933 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1934 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1935 AC_MSG_ERROR($GTK_PKG_ERRORS)
1940 if test x"$pkg_check_gtk" = xyes; then
1942 AC_SUBST(GTK_CFLAGS)
1944 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1945 CFLAGS="$CFLAGS $GTK_CFLAGS"
1946 LIBS="$GTK_LIBS $LIBS"
1947 dnl Try to compile a simple GTK program.
1949 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1950 if test "${GTK_COMPILES}" != "yes"; then
1951 if test "$USE_X_TOOLKIT" != "maybe"; then
1952 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
1956 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1957 GTK_OBJ="gtkutil.o $GTK_OBJ"
1959 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1962 AC_MSG_WARN([[Your version of Gtk+ will have problems with
1963 closing open displays. This is no problem if you just use
1964 one display, but if you use more than one and close one of them
1974 if test "${HAVE_GTK}" = "yes"; then
1976 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1977 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
1978 if test "$with_toolkit_scroll_bars" != no; then
1979 with_toolkit_scroll_bars=yes
1982 dnl Check if we have the old file selection dialog declared and
1983 dnl in the link library. In 2.x it may be in the library,
1984 dnl but not declared if deprecated featured has been selected out.
1985 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1986 HAVE_GTK_FILE_SELECTION=no
1987 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1988 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1989 #include <gtk/gtk.h>])
1990 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1991 AC_CHECK_FUNCS(gtk_file_selection_new)
1995 dnl Check for functions introduced in 2.14 and later.
1996 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
1997 gtk_dialog_get_action_area gtk_widget_get_sensitive \
1998 gtk_widget_get_mapped gtk_adjustment_get_page_size \
1999 gtk_orientable_set_orientation)
2003 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2004 dnl other platforms. Support for higher D-Bus versions than 1.0 is
2005 dnl also not configured.
2008 if test "${with_dbus}" = "yes"; then
2009 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2010 if test "$HAVE_DBUS" = yes; then
2011 LIBS="$LIBS $DBUS_LIBS"
2012 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2013 AC_CHECK_FUNCS([dbus_watch_get_unix_fd])
2019 dnl GSettings has been tested under GNU/Linux only.
2021 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2022 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2023 if test "$HAVE_GSETTINGS" = "yes"; then
2024 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2025 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2026 SETTINGS_LIBS="$GSETTINGS_LIBS"
2030 dnl GConf has been tested under GNU/Linux only.
2031 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2033 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2034 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2035 if test "$HAVE_GCONF" = yes; then
2036 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2037 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2038 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2039 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2043 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2044 SAVE_CFLAGS="$CFLAGS"
2045 SAVE_LDFLAGS="$LDFLAGS"
2046 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2047 LDFLAGS="$SETTINGS_LIBS $LDFLAGS"
2048 AC_CHECK_FUNCS([g_type_init])
2049 CFLAGS="$SAVE_CFLAGS"
2050 LDFLAGS="$SAVE_LDFLAGS"
2052 AC_SUBST(SETTINGS_CFLAGS)
2053 AC_SUBST(SETTINGS_LIBS)
2056 dnl SELinux is available for GNU/Linux only.
2059 if test "${with_selinux}" = "yes"; then
2060 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2061 if test "$HAVE_LIBSELINUX" = yes; then
2062 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2063 LIBSELINUX_LIBS=-lselinux
2066 AC_SUBST(LIBSELINUX_LIBS)
2069 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2070 if test "${with_gnutls}" = "yes" ; then
2071 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.0], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2072 if test "${HAVE_GNUTLS}" = "yes"; then
2073 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2076 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2077 LIBS="$LIBGNUTLS_LIBS $LIBS"
2078 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2080 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2081 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2085 AC_SUBST(LIBGNUTLS_LIBS)
2086 AC_SUBST(LIBGNUTLS_CFLAGS)
2088 dnl Do not put whitespace before the #include statements below.
2089 dnl Older compilers (eg sunos4 cc) choke on it.
2092 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2093 if test "$with_xaw3d" != no; then
2094 AC_MSG_CHECKING(for xaw3d)
2095 AC_CACHE_VAL(emacs_cv_xaw3d,
2096 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2097 #include <X11/Intrinsic.h>
2098 #include <X11/Xaw3d/Simple.h>]],
2100 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2101 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2102 emacs_cv_xaw3d=no)])
2106 if test $emacs_cv_xaw3d = yes; then
2107 AC_MSG_RESULT([yes; using Lucid toolkit])
2111 AC_DEFINE(HAVE_XAW3D, 1,
2112 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2115 AC_MSG_CHECKING(for libXaw)
2116 AC_CACHE_VAL(emacs_cv_xaw,
2117 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2118 #include <X11/Intrinsic.h>
2119 #include <X11/Xaw/Simple.h>]],
2123 if test $emacs_cv_xaw = yes; then
2124 AC_MSG_RESULT([yes; using Lucid toolkit])
2127 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2128 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2130 AC_MSG_ERROR([No X toolkit could be found.
2131 If you are sure you want Emacs compiled without an X toolkit, pass
2133 to configure. Otherwise, install the development libraries for the toolkit
2134 that you want to use (e.g. Gtk+) and re-run configure.])
2139 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2142 if test "${USE_X_TOOLKIT}" != "none"; then
2143 AC_MSG_CHECKING(X11 toolkit version)
2144 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2145 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2146 [[#if XtSpecificationRelease < 6
2149 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2150 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2151 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2152 AC_MSG_RESULT(6 or newer)
2153 AC_DEFINE(HAVE_X11XTR6, 1,
2154 [Define to 1 if you have the X11R6 or newer version of Xt.])
2155 LIBXTR6="-lSM -lICE"
2157 ## Use libw.a along with X11R6 Xt.
2158 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2161 AC_MSG_RESULT(before 6)
2164 dnl If using toolkit, check whether libXmu.a exists.
2165 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2167 if test x$HAVE_X11XTR6 = xyes; then
2168 LIBS="-lXt -lSM -lICE $LIBS"
2172 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2173 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2177 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2178 dnl Why not just test for libxmu in the normal way?
2181 ## These systems don't supply Xmu.
2183 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2188 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2189 if test "${HAVE_X11}" = "yes"; then
2190 if test "${USE_X_TOOLKIT}" != "none"; then
2191 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2196 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2197 AC_CACHE_CHECK(for Motif version 2.1, emacs_cv_motif_version_2_1,
2198 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2199 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2202 Motif version prior to 2.1.
2204 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2205 if test $emacs_cv_motif_version_2_1 = yes; then
2206 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2208 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2209 # We put this in CFLAGS temporarily to precede other -I options
2210 # that might be in CFLAGS temporarily.
2211 # We put this in CPPFLAGS where it precedes the other -I options.
2212 OLD_CPPFLAGS=$CPPFLAGS
2214 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2215 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2216 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2218 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2219 if test $emacs_cv_lesstif = yes; then
2220 # Make sure this -I option remains in CPPFLAGS after it is set
2221 # back to REAL_CPPFLAGS.
2222 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2223 # have those other -I options anyway. Ultimately, having this
2224 # directory ultimately in CPPFLAGS will be enough.
2225 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2226 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2229 CPPFLAGS=$OLD_CPPFLAGS
2234 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2235 dnl using Motif or Xaw3d is available, and unless
2236 dnl --with-toolkit-scroll-bars=no was specified.
2238 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2239 [Define to 1 if we should use toolkit scroll bars.])dnl
2240 USE_TOOLKIT_SCROLL_BARS=no
2241 if test "${with_toolkit_scroll_bars}" != "no"; then
2242 if test "${USE_X_TOOLKIT}" != "none"; then
2243 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2244 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2246 USE_TOOLKIT_SCROLL_BARS=yes
2247 elif test "${HAVE_XAW3D}" = "yes"; then
2248 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2249 USE_TOOLKIT_SCROLL_BARS=yes
2251 elif test "${HAVE_GTK}" = "yes"; then
2252 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2253 USE_TOOLKIT_SCROLL_BARS=yes
2254 elif test "${HAVE_NS}" = "yes"; then
2255 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2256 USE_TOOLKIT_SCROLL_BARS=yes
2260 dnl See if XIM is available.
2261 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2262 #include <X11/Xlib.h>
2263 #include <X11/Xresource.h>]],
2264 [[XIMProc callback;]])],
2266 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2269 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2271 if test "${with_xim}" != "no"; then
2272 AC_DEFINE(USE_XIM, 1,
2273 [Define to 1 if we should use XIM, if it is available.])
2277 if test "${HAVE_XIM}" != "no"; then
2279 if test "$GCC" = yes; then
2280 CFLAGS="$CFLAGS --pedantic-errors"
2282 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2283 #include <X11/Xlib.h>
2284 #include <X11/Xresource.h>]],
2290 XPointer *client_data;
2292 /* If we're not using GCC, it's probably not XFree86, and this is
2293 probably right, but we can't use something like --pedantic-errors. */
2294 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2295 char*, XIMProc, XPointer*);
2297 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2299 [emacs_cv_arg6_star=yes])
2300 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2301 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2302 either XPointer or XPointer*.])dnl
2303 if test "$emacs_cv_arg6_star" = yes; then
2304 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2306 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2311 ### Start of font-backend (under any platform) section.
2312 # (nothing here yet -- this is a placeholder)
2313 ### End of font-backend (under any platform) section.
2315 ### Start of font-backend (under X11) section.
2316 if test "${HAVE_X11}" = "yes"; then
2317 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2319 ## Use -lXft if available, unless `--with-xft=no'.
2321 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2324 if test "x${with_xft}" != "xno"; then
2326 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2327 ## Because xftfont.c uses XRenderQueryExtension, we also
2328 ## need to link to -lXrender.
2330 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2331 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2332 OLD_CPPFLAGS="$CPPFLAGS"
2333 OLD_CFLAGS="$CFLAGS"
2335 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2336 CFLAGS="$CFLAGS $XFT_CFLAGS"
2337 XFT_LIBS="-lXrender $XFT_LIBS"
2338 LIBS="$XFT_LIBS $LIBS"
2339 AC_CHECK_HEADER(X11/Xft/Xft.h,
2340 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2342 if test "${HAVE_XFT}" = "yes"; then
2343 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2345 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2347 CPPFLAGS="$OLD_CPPFLAGS"
2348 CFLAGS="$OLD_CFLAGS"
2350 fi # "${HAVE_XFT}" = "yes"
2351 fi # "$HAVE_XFT" != no
2352 fi # "x${with_xft}" != "xno"
2354 ## We used to allow building with FreeType and without Xft.
2355 ## However, the ftx font backend driver is not in good shape.
2356 if test "$HAVE_XFT" != "yes"; then
2357 dnl For the "Does Emacs use" message at the end.
2361 dnl Strict linkers fail with
2362 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2363 dnl if -lfreetype is not specified.
2364 dnl The following is needed to set FREETYPE_LIBS.
2365 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2368 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2372 if test "${HAVE_FREETYPE}" = "yes"; then
2373 AC_DEFINE(HAVE_FREETYPE, 1,
2374 [Define to 1 if using the freetype and fontconfig libraries.])
2375 if test "${with_libotf}" != "no"; then
2376 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2378 if test "$HAVE_LIBOTF" = "yes"; then
2379 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2380 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2381 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2382 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2383 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2384 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2385 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2389 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2390 dnl Does the new font backend require it, or can it work without it?
2394 if test "${HAVE_LIBOTF}" = yes; then
2395 if test "${with_m17n_flt}" != "no"; then
2396 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2397 if test "$HAVE_M17N_FLT" = "yes"; then
2398 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2409 ### End of font-backend (under X11) section.
2411 AC_SUBST(FREETYPE_CFLAGS)
2412 AC_SUBST(FREETYPE_LIBS)
2413 AC_SUBST(FONTCONFIG_CFLAGS)
2414 AC_SUBST(FONTCONFIG_LIBS)
2415 AC_SUBST(LIBOTF_CFLAGS)
2416 AC_SUBST(LIBOTF_LIBS)
2417 AC_SUBST(M17N_FLT_CFLAGS)
2418 AC_SUBST(M17N_FLT_LIBS)
2420 ### Use -lXpm if available, unless `--with-xpm=no'.
2423 if test "${HAVE_X11}" = "yes"; then
2424 if test "${with_xpm}" != "no"; then
2425 AC_CHECK_HEADER(X11/xpm.h,
2426 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2427 if test "${HAVE_XPM}" = "yes"; then
2428 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2429 AC_EGREP_CPP(no_return_alloc_pixels,
2430 [#include "X11/xpm.h"
2431 #ifndef XpmReturnAllocPixels
2432 no_return_alloc_pixels
2434 ], HAVE_XPM=no, HAVE_XPM=yes)
2436 if test "${HAVE_XPM}" = "yes"; then
2444 if test "${HAVE_XPM}" = "yes"; then
2445 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm libary (-lXpm).])
2451 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2454 if test "${HAVE_X11}" = "yes"; then
2455 if test "${with_jpeg}" != "no"; then
2456 dnl Checking for jpeglib.h can lose because of a redefinition of
2458 AC_CHECK_HEADER(jerror.h,
2459 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2462 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2463 if test "${HAVE_JPEG}" = "yes"; then
2464 AC_DEFINE(HAVE_JPEG)
2465 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2466 [#include <jpeglib.h>
2467 version=JPEG_LIB_VERSION
2469 [AC_DEFINE(HAVE_JPEG)],
2470 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2473 if test "${HAVE_JPEG}" = "yes"; then
2479 ### Use -lpng if available, unless `--with-png=no'.
2482 if test "${HAVE_X11}" = "yes"; then
2483 if test "${with_png}" != "no"; then
2484 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2485 # in /usr/include/libpng.
2486 AC_CHECK_HEADERS(png.h libpng/png.h)
2487 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2488 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2492 if test "${HAVE_PNG}" = "yes"; then
2493 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2494 LIBPNG="-lpng -lz -lm"
2499 ### Use -ltiff if available, unless `--with-tiff=no'.
2502 if test "${HAVE_X11}" = "yes"; then
2503 if test "${with_tiff}" != "no"; then
2504 AC_CHECK_HEADER(tiffio.h,
2506 # At least one tiff package requires the jpeg library.
2507 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2508 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2511 if test "${HAVE_TIFF}" = "yes"; then
2512 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2513 dnl FIXME -lz -lm, as per libpng?
2519 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2522 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2523 AC_CHECK_HEADER(gif_lib.h,
2524 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2525 # Earlier versions can crash Emacs.
2526 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2528 if test "$HAVE_GIF" = yes; then
2530 elif test "$HAVE_GIF" = maybe; then
2531 # If gif_lib.h but no libgif, try libungif.
2532 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2533 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2536 if test "${HAVE_GIF}" = "yes"; then
2537 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2542 dnl Check for required libraries.
2543 if test "${HAVE_X11}" = "yes"; then
2546 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2547 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2548 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2549 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2550 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2551 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2552 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2553 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2554 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2555 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2557 if test "X${MISSING}" != X; then
2558 AC_MSG_ERROR([The following required libraries were not found:
2560 Maybe some development libraries/packages are missing?
2561 If you don't want to link with them give
2563 as options to configure])
2567 ### Use -lgpm if available, unless `--with-gpm=no'.
2570 if test "${with_gpm}" != "no"; then
2571 AC_CHECK_HEADER(gpm.h,
2572 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2574 if test "${HAVE_GPM}" = "yes"; then
2575 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2581 dnl Check for malloc/malloc.h on darwin
2582 AC_CHECK_HEADER(malloc/malloc.h, [AC_DEFINE(HAVE_MALLOC_MALLOC_H, 1, [Define to 1 if you have the <malloc/malloc.h> header file.])])
2585 ### Use NeXTstep API to implement GUI.
2586 if test "${HAVE_NS}" = "yes"; then
2587 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2588 if test "${NS_IMPL_COCOA}" = "yes"; then
2589 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2591 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2592 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2593 # See also .m.o rule in Makefile.in */
2594 # FIXME: are all these flags really needed? Document here why. */
2595 C_SWITCH_X_SYSTEM="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2596 ## Extra CFLAGS applied to src/*.m files.
2597 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
2599 if test "${NS_HAVE_NSINTEGER}" = "yes"; then
2600 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
2602 # We also have mouse menus.
2608 ### Use session management (-lSM -lICE) if available
2611 if test "${HAVE_X11}" = "yes"; then
2612 AC_CHECK_HEADER(X11/SM/SMlib.h,
2613 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2615 if test "${HAVE_X_SM}" = "yes"; then
2616 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2620 *) LIBS="$LIBXSM $LIBS" ;;
2626 ### Use libxml (-lxml2) if available
2627 if test "${with_xml2}" != "no"; then
2628 ### I'm not sure what the version number should be, so I just guessed.
2629 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2630 if test "${HAVE_LIBXML2}" = "yes"; then
2631 LIBS="$LIBXML2_LIBS $LIBS"
2632 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2633 if test "${HAVE_LIBXML2}" = "yes"; then
2634 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2641 AC_SUBST(LIBXML2_LIBS)
2642 AC_SUBST(LIBXML2_CFLAGS)
2644 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2645 AC_CACHE_CHECK(whether netdb declares h_errno,
2646 emacs_cv_netdb_declares_h_errno,
2647 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2648 [[return h_errno;]])],
2649 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2650 if test $emacs_cv_netdb_declares_h_errno = yes; then
2651 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2654 # fmod, logb, and frexp are found in -lm on most systems.
2655 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
2656 AC_CHECK_LIB(m, sqrt)
2658 # Check for mail-locking functions in a "mail" library. Probably this should
2659 # have the same check as for liblockfile below.
2660 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2661 if test $have_mail = yes; then
2663 LIBS="$LIBS_MAIL $LIBS"
2664 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2668 dnl Debian, at least:
2669 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2670 if test $have_lockfile = yes; then
2671 LIBS_MAIL=-llockfile
2672 LIBS="$LIBS_MAIL $LIBS"
2673 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2675 # If we have the shared liblockfile, assume we must use it for mail
2676 # locking (e.g. Debian). If we couldn't link against liblockfile
2677 # (no liblockfile.a installed), ensure that we don't need to.
2678 dnl This works for files generally, not just executables.
2679 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2680 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2681 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2682 if test $ac_cv_prog_liblockfile = yes; then
2683 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2684 This probably means that movemail could lose mail.
2685 There may be a `development' package to install containing liblockfile.])
2688 AC_CHECK_FUNCS(touchlock)
2689 AC_CHECK_HEADERS(maillock.h)
2692 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2693 ## interlock access to the mail spool. The alternative is a lock file named
2694 ## /usr/spool/mail/$USER.lock.
2697 aix4-2) mail_lock="lockf" ;;
2699 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2701 ## On GNU/Linux systems, both methods are used by various mail programs.
2702 ## I assume most people are using newer mailers that have heard of flock.
2703 ## Change this if you need to.
2704 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2705 ## configure gets the right answers, and that means *NOT* using flock.
2706 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2707 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2708 ## Debian maintainer hasn't provided a clean fix for Emacs.
2709 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2710 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2711 ## correct logic. -- fx
2712 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2713 ## liblockfile is a Free Software replacement for libmail, used on
2714 ## Debian systems and elsewhere. -rfr.
2717 if test $have_mail = yes || test $have_lockfile = yes; then
2718 test $ac_cv_header_maillock_h = yes && mail_lock=no
2724 case "$mail_lock" in
2725 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2727 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2729 *) BLESSMAIL_TARGET="need-blessmail" ;;
2731 AC_SUBST(BLESSMAIL_TARGET)
2734 AC_CHECK_FUNCS(gethostname getdomainname \
2735 rename closedir mkdir rmdir sysinfo getrusage get_current_dir_name \
2736 random lrand48 logb frexp fmod rint cbrt ftime setsid \
2737 strerror fpathconf select euidaccess getpagesize tzset setlocale \
2738 utimes getrlimit setrlimit setpgid getcwd getwd shutdown getaddrinfo \
2739 __fpending mblen mbrlen mbsinit strsignal setitimer ualarm \
2740 sendto recvfrom getsockopt setsockopt getsockname getpeername \
2741 gai_strerror mkstemp getline getdelim mremap fsync sync \
2742 difftime mempcpy mblen mbrlen posix_memalign \
2743 cfmakeraw cfsetspeed copysign __executable_start)
2745 dnl Cannot use AC_CHECK_FUNCS
2746 AC_CACHE_CHECK([for __builtin_unwind_init],
2747 emacs_cv_func___builtin_unwind_init,
2748 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2749 emacs_cv_func___builtin_unwind_init=yes,
2750 emacs_cv_func___builtin_unwind_init=no)])
2751 if test $emacs_cv_func___builtin_unwind_init = yes; then
2752 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2753 [Define to 1 if you have the `__builtin_unwind_init' function.])
2756 AC_CHECK_HEADERS(sys/un.h)
2763 AC_CHECK_FUNCS(grantpt)
2765 # PTY-related GNU extensions.
2766 AC_CHECK_FUNCS(getpt)
2768 # Check this now, so that we will NOT find the above functions in ncurses.
2769 # That is because we have not set up to link ncurses in lib-src.
2770 # It's better to believe a function is not available
2771 # than to expect to find it in ncurses.
2772 # Also we need tputs and friends to be able to build at all.
2773 have_tputs_et_al=true
2774 AC_SEARCH_LIBS(tputs, [ncurses terminfo termcap], , have_tputs_et_al=false)
2775 if test "$have_tputs_et_al" != true; then
2776 AC_MSG_ERROR([I couldn't find termcap functions (tputs and friends).
2777 Maybe some development libraries/packages are missing? Try installing
2778 libncurses-dev(el), libterminfo-dev(el) or similar.])
2780 # Must define this when any termcap library is found.
2781 AC_DEFINE(HAVE_LIBNCURSES, 1,
2782 [Define to 1 if you have the `ncurses' library (-lncurses).])
2783 ## FIXME This was the cpp logic, but I am not sure it is right.
2784 ## The above test has not necessarily found libncurses.
2787 ## Use terminfo instead of termcap?
2788 ## Note only system files NOT using terminfo are:
2789 ## freebsd < 40000, ms-w32, msdos, netbsd < 599002500, and
2790 ## darwin|gnu without ncurses.
2794 ## cygwin: Fewer environment variables to go wrong, more terminal types.
2795 ## hpux10-20: Use the system provided termcap(3) library.
2796 ## openbsd: David Mazieres <dm@reeducation-labor.lcs.mit.edu> says this
2797 ## is necessary. Otherwise Emacs dumps core when run -nw.
2798 aix4-2|cygwin|hpux*|irix6-5|openbsd|sol2*|unixware) TERMINFO=yes ;;
2800 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2801 ## The ncurses library has been moved out of the System framework in
2802 ## Mac OS X 10.2. So if configure detects it, set the command-line
2803 ## option to use it.
2805 ## (HAVE_LIBNCURSES was not always true, but is since 2010-03-18.)
2806 if test "x$HAVE_LIBNCURSES" = "xyes"; then
2808 LIBS_TERMCAP="-lncurses"
2813 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2814 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2815 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2816 [[#if __FreeBSD_version < 400000
2819 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2821 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2823 if test $emacs_cv_freebsd_terminfo = yes; then
2825 LIBS_TERMCAP="-lncurses"
2827 LIBS_TERMCAP="-ltermcap"
2832 if test $ac_cv_search_tputs = -lterminfo; then
2834 LIBS_TERMCAP="-lterminfo"
2836 LIBS_TERMCAP="-ltermcap"
2843 ## hpux: Make sure we get select from libc rather than from libcurses
2844 ## because libcurses on HPUX 10.10 has a broken version of select.
2845 ## We used to use -lc -lcurses, but this may be cleaner.
2846 hpux*) LIBS_TERMCAP="-ltermcap" ;;
2848 openbsd) LIBS_TERMCAP="-lncurses" ;;
2850 ## Must use system termcap, if we use any termcap. It does special things.
2851 sol2*) test "$TERMINFO" != yes && LIBS_TERMCAP="-ltermcap" ;;
2854 TERMCAP_OBJ=tparam.o
2855 if test $TERMINFO = yes; then
2856 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
2858 ## Default used to be -ltermcap. Add a case above if need something else.
2859 test "x$LIBS_TERMCAP" = "x" && LIBS_TERMCAP="-lcurses"
2861 TERMCAP_OBJ=terminfo.o
2863 AC_SUBST(LIBS_TERMCAP)
2864 AC_SUBST(TERMCAP_OBJ)
2867 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2869 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2870 #include <arpa/nameser.h>
2871 #include <resolv.h>]],
2872 [[return res_init();]])],
2873 have_res_init=yes, have_res_init=no)
2874 if test "$have_res_init" = no; then
2876 LIBS="$LIBS -lresolv"
2877 AC_MSG_CHECKING(for res_init with -lresolv)
2878 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2879 #include <arpa/nameser.h>
2880 #include <resolv.h>]],
2881 [[return res_init();]])],
2882 have_res_init=yes, have_res_init=no)
2883 AC_MSG_RESULT($have_res_init)
2884 if test "$have_res_init" = yes ; then
2890 if test "$have_res_init" = yes; then
2891 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2894 # Do we need the Hesiod library to provide the support routines?
2896 if test "$with_hesiod" != no ; then
2897 # Don't set $LIBS here -- see comments above. FIXME which comments?
2898 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2899 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2900 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2901 if test "$resolv" = yes ; then
2906 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2907 hesiod=yes, :, $RESOLVLIB)])
2909 if test x"$hesiod" = xyes; then
2910 AC_DEFINE(HAVE_LIBHESIOD, 1,
2911 [Define to 1 if you have the hesiod library (-lhesiod).])
2917 # Do we need libresolv (due to res_init or Hesiod)?
2918 if test "$resolv" = yes ; then
2919 AC_DEFINE(HAVE_LIBRESOLV, 1,
2920 [Define to 1 if you have the resolv library (-lresolv).])
2927 # These tell us which Kerberos-related libraries to use.
2934 if test "${with_kerberos}" != no; then
2935 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
2936 if test $have_com_err = yes; then
2937 COM_ERRLIB=-lcom_err
2938 LIBS="$COM_ERRLIB $LIBS"
2939 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
2941 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
2942 if test $have_crypto = yes; then
2944 LIBS="$CRYPTOLIB $LIBS"
2945 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
2947 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
2948 if test $have_k5crypto = yes; then
2949 CRYPTOLIB=-lk5crypto
2950 LIBS="$CRYPTOLIB $LIBS"
2951 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
2953 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
2954 if test $have_krb5=yes; then
2956 LIBS="$KRB5LIB $LIBS"
2957 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
2959 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
2960 if test "${with_kerberos5}" = no; then
2961 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
2962 if test $have_des425 = yes; then
2964 LIBS="$DESLIB $LIBS"
2965 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
2967 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
2968 if test $have_des = yes; then
2970 LIBS="$DESLIB $LIBS"
2971 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
2974 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
2975 if test $have_krb4 = yes; then
2977 LIBS="$KRB4LIB $LIBS"
2978 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
2980 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
2981 if test $have_krb = yes; then
2983 LIBS="$KRB4LIB $LIBS"
2984 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
2989 if test "${with_kerberos5}" != no; then
2990 AC_CHECK_HEADERS(krb5.h,
2991 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
2992 [#include <krb5.h>])])
2994 AC_CHECK_HEADERS(des.h,,
2995 [AC_CHECK_HEADERS(kerberosIV/des.h,,
2996 [AC_CHECK_HEADERS(kerberos/des.h)])])
2997 AC_CHECK_HEADERS(krb.h,,
2998 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
2999 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3001 AC_CHECK_HEADERS(com_err.h)
3004 AC_SUBST(COM_ERRLIB)
3010 # Solaris requires -lintl if you want strerror (which calls dgettext)
3011 # to return localized messages.
3012 AC_CHECK_LIB(intl, dgettext)
3014 AC_MSG_CHECKING(whether localtime caches TZ)
3015 AC_CACHE_VAL(emacs_cv_localtime_cache,
3016 [if test x$ac_cv_func_tzset = xyes; then
3017 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3018 char TZ_GMT0[] = "TZ=GMT0";
3019 char TZ_PST8[] = "TZ=PST8";
3022 time_t now = time ((time_t *) 0);
3023 int hour_GMT0, hour_unset;
3024 if (putenv (TZ_GMT0) != 0)
3026 hour_GMT0 = localtime (&now)->tm_hour;
3028 hour_unset = localtime (&now)->tm_hour;
3029 if (putenv (TZ_PST8) != 0)
3031 if (localtime (&now)->tm_hour == hour_GMT0)
3034 if (localtime (&now)->tm_hour != hour_unset)
3037 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3038 [# If we have tzset, assume the worst when cross-compiling.
3039 emacs_cv_localtime_cache=yes])
3041 # If we lack tzset, report that localtime does not cache TZ,
3042 # since we can't invalidate the cache if we don't have tzset.
3043 emacs_cv_localtime_cache=no
3045 AC_MSG_RESULT($emacs_cv_localtime_cache)
3046 if test $emacs_cv_localtime_cache = yes; then
3047 AC_DEFINE(LOCALTIME_CACHE, 1,
3048 [Define to 1 if localtime caches TZ.])
3051 if test "x$HAVE_TIMEVAL" = xyes; then
3052 AC_CHECK_FUNCS(gettimeofday)
3053 if test $ac_cv_func_gettimeofday = yes; then
3054 AC_CACHE_CHECK(whether gettimeofday can accept two arguments,
3055 emacs_cv_gettimeofday_two_arguments,
3056 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3057 #ifdef TIME_WITH_SYS_TIME
3058 #include <sys/time.h>
3061 #ifdef HAVE_SYS_TIME_H
3062 #include <sys/time.h>
3067 [[struct timeval time;
3068 gettimeofday (&time, 0);]])],
3069 emacs_cv_gettimeofday_two_arguments=yes,
3070 emacs_cv_gettimeofday_two_arguments=no)])
3071 if test $emacs_cv_gettimeofday_two_arguments = no; then
3072 AC_DEFINE(GETTIMEOFDAY_ONE_ARGUMENT, 1,
3073 [Define to 1 if gettimeofday accepts only one argument.])
3079 AC_CHECK_FUNC(socket, , ok_so_far=no)
3080 if test $ok_so_far = yes; then
3081 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3083 if test $ok_so_far = yes; then
3084 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3086 if test $ok_so_far = yes; then
3087 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3088 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3089 [Define to 1 if you have inet sockets.])
3092 if test -f /usr/lpp/X11/bin/smt.exp; then
3093 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3094 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3097 AC_MSG_CHECKING(whether system supports dynamic ptys)
3098 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3100 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3107 AC_CHECK_FUNCS(snprintf)
3109 dnl Adapted from Haible's version.
3110 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3111 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3112 [[char* cs = nl_langinfo(CODESET);]])],
3113 emacs_cv_langinfo_codeset=yes,
3114 emacs_cv_langinfo_codeset=no)
3116 if test $emacs_cv_langinfo_codeset = yes; then
3117 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3118 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3123 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3124 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3125 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3126 if test "$emacs_cv_c_restrict_arr" = yes; then
3127 AC_DEFINE(__restrict_arr, __restrict,
3128 [Define to compiler's equivalent of C99 restrict keyword in array
3129 declarations. Define as empty for no equivalent.])
3132 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3133 dnl how the tty code is related to POSIX and/or other versions of termios.
3134 dnl The following looks like a useful start.
3136 dnl AC_SYS_POSIX_TERMIOS
3137 dnl if test $ac_cv_sys_posix_termios = yes; then
3138 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3139 dnl and macros for terminal control.])
3140 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3143 # Set up the CFLAGS for real compilation, so we can substitute it.
3144 CFLAGS="$REAL_CFLAGS"
3145 CPPFLAGS="$REAL_CPPFLAGS"
3147 ## Hack to detect a buggy GCC version.
3148 if test "x$GCC" = xyes \
3149 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3150 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3151 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3152 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3155 version=$PACKAGE_VERSION
3157 ### Specify what sort of things we'll be editing into Makefile and config.h.
3158 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3160 AC_SUBST(configuration)
3165 AC_SUBST(exec_prefix)
3168 AC_SUBST(sharedstatedir)
3169 AC_SUBST(libexecdir)
3173 AC_SUBST(locallisppath)
3175 AC_SUBST(x_default_search_path)
3177 AC_SUBST(archlibdir)
3182 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
3183 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
3184 ## end of LIBX_BASE, but nothing ever set it.
3185 AC_SUBST(LD_SWITCH_X_SITE)
3186 AC_SUBST(C_SWITCH_X_SITE)
3187 AC_SUBST(C_SWITCH_X_SYSTEM)
3189 ## Used in lwlib/Makefile.in.
3190 AC_SUBST(X_TOOLKIT_TYPE)
3191 if test -n "${machfile}"; then
3192 M_FILE="\$(srcdir)/${machfile}"
3196 S_FILE="\$(srcdir)/${opsysfile}"
3200 AC_SUBST(ns_appbindir)
3201 AC_SUBST(ns_appresdir)
3203 AC_SUBST(GNU_OBJC_CFLAGS)
3204 AC_SUBST(OTHER_FILES)
3206 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
3207 [Define to the canonical Emacs configuration name.])
3208 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
3209 [Define to the options passed to configure.])
3210 if test -n "$machfile"; then
3211 AC_DEFINE_UNQUOTED(config_machfile, "${machfile}",
3212 [Define to the used machine dependent file.])
3214 AC_DEFINE_UNQUOTED(config_opsysfile, "${opsysfile}",
3215 [Define to the used os dependent file.])
3220 if test "${HAVE_X_WINDOWS}" = "yes" ; then
3221 AC_DEFINE(HAVE_X_WINDOWS, 1,
3222 [Define to 1 if you want to use the X window system.])
3224 XOBJ="xterm.o xfns.o xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o xsettings.o xgselect.o"
3226 if test "$HAVE_XFT" = "yes"; then
3227 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
3228 elif test "$HAVE_FREETYPE" = "yes"; then
3229 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
3239 if test "${USE_X_TOOLKIT}" != "none" ; then
3241 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
3242 if test "${USE_X_TOOLKIT}" = "LUCID"; then
3243 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
3244 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
3245 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
3249 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
3250 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
3254 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
3255 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
3256 MOTIF_LIBW="MOTIF_LIBW -lXimp"
3260 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
3261 MOTIF_LIBW="$MOTIF_LIBW -li18n"
3264 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
3267 AC_SUBST(WIDGET_OBJ)
3270 case "$USE_X_TOOLKIT" in
3271 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
3272 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
3273 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
3275 AC_SUBST(TOOLKIT_LIBW)
3277 if test "$USE_X_TOOLKIT" = "none"; then
3278 LIBXT_OTHER="\$(LIBXSM)"
3279 OLDXMENU_TARGET="really-oldXMenu"
3281 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
3282 OLDXMENU_TARGET="really-lwlib"
3284 AC_SUBST(LIBXT_OTHER)
3286 ## The X Menu stuff is present in the X10 distribution, but missing
3287 ## from X11. If we have X10, just use the installed library;
3288 ## otherwise, use our own copy.
3289 if test "${HAVE_X11}" = "yes" ; then
3290 AC_DEFINE(HAVE_X11, 1,
3291 [Define to 1 if you want to use version 11 of X windows.
3292 Otherwise, Emacs expects to use version 10.])
3294 if test "$USE_X_TOOLKIT" = "none"; then
3295 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
3297 OLDXMENU="\${lwlibdir}/liblw.a"
3299 LIBXMENU="\$(OLDXMENU)"
3300 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
3301 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
3303 ## For a syntactically valid Makefile; not actually used for anything.
3304 ## See comments in src/Makefile.in.
3306 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
3307 if test "${HAVE_X_WINDOWS}" = "yes"; then
3316 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
3323 AC_SUBST(OLDXMENU_TARGET)
3326 AC_SUBST(LIBX_OTHER)
3327 AC_SUBST(OLDXMENU_DEPS)
3329 if test "${HAVE_MENUS}" = "yes" ; then
3330 AC_DEFINE(HAVE_MENUS, 1,
3331 [Define to 1 if you have mouse menus.
3332 (This is automatic if you use X, but the option to specify it remains.)
3333 It is also defined with other window systems that support xmenu.c.])
3336 if test "${GNU_MALLOC}" = "yes" ; then
3337 AC_DEFINE(GNU_MALLOC, 1,
3338 [Define to 1 if you want to use the GNU memory allocator.])
3342 if test "${REL_ALLOC}" = "yes" ; then
3343 AC_DEFINE(REL_ALLOC, 1,
3344 [Define REL_ALLOC if you want to use the relocating allocator for
3347 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
3349 AC_SUBST(RALLOC_OBJ)
3351 if test "$opsys" = "cygwin"; then
3352 CYGWIN_OBJ="sheap.o"
3353 ## Cygwin differs because of its unexec().
3355 POST_ALLOC_OBJ=lastfile.o
3358 PRE_ALLOC_OBJ=lastfile.o
3361 AC_SUBST(CYGWIN_OBJ)
3362 AC_SUBST(PRE_ALLOC_OBJ)
3363 AC_SUBST(POST_ALLOC_OBJ)
3365 # Configure gnulib here, now that we know LIBS.
3366 gl_ASSERT_NO_GNULIB_POSIXCHECK
3367 gl_ASSERT_NO_GNULIB_TESTS
3371 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
3374 ## The -headerpad option tells ld (see man page) to leave room at the
3375 ## end of the header for adding load commands. Needed for dumping.
3376 ## 0x690 is the total size of 30 segment load commands (at 56
3377 ## each); under Cocoa 31 commands are required.
3378 if test "$HAVE_NS" = "yes"; then
3379 libs_nsgui="-framework AppKit"
3385 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
3387 ## This is here because src/Makefile.in did some extra fiddling around
3388 ## with LD_SWITCH_SYSTEM. The cpp logic was:
3389 ## #ifndef LD_SWITCH_SYSTEM
3390 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
3391 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
3392 ## not using gcc, darwin system not on an alpha (ie darwin, since
3393 ## darwin + alpha does not occur).
3394 ## Because this was done in src/Makefile.in, the resulting part of
3395 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
3396 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
3397 ## rather than LD_SWITCH_SYSTEM.
3398 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
3399 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
3402 ## LD_SWITCH_X_SITE_AUX is a -R option saying where to find X at run-time.
3403 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at
3404 ## the point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_AUX
3405 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
3406 ## had different values in configure (in ac_link) and src/Makefile.in.
3407 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
3408 gnu-linux) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_AUX)" ;;
3410 *) LD_SWITCH_SYSTEM_TEMACS= ;;
3413 if test "$NS_IMPL_GNUSTEP" = "yes"; then
3414 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
3417 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
3423 ## gnu: GNU needs its own crt0.
3424 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
3426 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
3427 ## library search parth, i.e. it won't search /usr/lib for libc and
3428 ## friends. Using -nostartfiles instead avoids this problem, and
3429 ## will also work on earlier NetBSD releases.
3430 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
3432 ## macpcc: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
3433 ## MkLinux/LinuxPPC needs this.
3434 ## ibms390x only supports opsys = gnu-linux so it can be added here.
3437 macppc|ibms390x) LD_FIRSTFLAG="-nostdlib" ;;
3443 if test "x$ORDINARY_LINK" = "xyes"; then
3446 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
3448 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
3449 ## freebsd, gnu-* not on macppc|ibms390x.
3450 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
3452 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
3453 ## places that are difficult to figure out at make time. Fortunately,
3454 ## these same versions allow you to pass arbitrary flags on to the
3455 ## linker, so there is no reason not to use it as a linker.
3457 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
3458 ## searching for libraries in its internal directories, so we have to
3459 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
3460 LD_FIRSTFLAG="-nostdlib"
3463 ## FIXME? What setting of EDIT_LDFLAGS should this have?
3464 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
3466 AC_SUBST(LD_FIRSTFLAG)
3469 ## FIXME? The logic here is not precisely the same as that above.
3470 ## There is no check here for a pre-defined LD_FIRSTFLAG.
3471 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
3473 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
3476 freebsd|netbsd|openbsd) LIB_GCC= ;;
3479 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
3480 ## build on ARM EABI under GNU/Linux. (Bug#5518)
3486 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
3487 ## immediately undefine it again and redefine it to empty.
3488 ## Was the C_SWITCH_X_SITE part really necessary?
3489 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
3495 ## Ask GCC where to find libgcc.a.
3496 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
3502 ## If we're using X11/GNUstep, define some consequences.
3503 if test "$HAVE_X_WINDOWS" = "yes" || test "$HAVE_NS" = "yes"; then
3504 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
3505 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
3509 AH_TOP([/* GNU Emacs site configuration template file.
3511 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2011
3512 Free Software Foundation, Inc.
3514 This file is part of GNU Emacs.
3516 GNU Emacs is free software: you can redistribute it and/or modify
3517 it under the terms of the GNU General Public License as published by
3518 the Free Software Foundation, either version 3 of the License, or
3519 (at your option) any later version.
3521 GNU Emacs is distributed in the hope that it will be useful,
3522 but WITHOUT ANY WARRANTY; without even the implied warranty of
3523 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3524 GNU General Public License for more details.
3526 You should have received a copy of the GNU General Public License
3527 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
3530 /* No code in Emacs #includes config.h twice, but some bits of code
3531 intended to work with other packages as well (like gmalloc.c)
3532 think they can include it as many times as they like. */
3533 #ifndef EMACS_CONFIG_H
3534 #define EMACS_CONFIG_H
3538 /* On AIX 3 this must be included before any other include file. */
3541 # error "alloca not available on this machine"
3544 /* Define AMPERSAND_FULL_NAME if you use the convention
3545 that & in the full name stands for the login id. */
3546 /* Turned on June 1996 supposing nobody will mind it. */
3547 #define AMPERSAND_FULL_NAME
3549 /* `subprocesses' should be defined if you want to
3550 have code for asynchronous subprocesses
3551 (as used in M-x compile and M-x shell).
3552 Only MSDOS does not support this (it overrides
3553 this in its config_opsysfile below). */
3555 #define subprocesses
3557 /* Include the os and machine dependent files. */
3558 #include config_opsysfile
3559 #ifdef config_machfile
3560 # include config_machfile
3563 /* GNUstep needs a bit more pure memory. Of the existing knobs,
3564 SYSTEM_PURESIZE_EXTRA seems like the least likely to cause problems.
3565 (There is probably a better place to do this, but right now the
3566 Cocoa side does this in s/darwin.h and we cannot parallel this
3567 exactly since GNUstep is multi-OS. */
3568 #if defined HAVE_NS && defined NS_IMPL_GNUSTEP
3569 # define SYSTEM_PURESIZE_EXTRA 30000
3572 #ifdef emacs /* Don't do this for lib-src. */
3573 /* Tell regex.c to use a type compatible with Emacs. */
3574 #define RE_TRANSLATE_TYPE Lisp_Object
3575 #define RE_TRANSLATE(TBL, C) CHAR_TABLE_TRANSLATE (TBL, C)
3577 /* If make_number is a macro, use it. */
3578 #define RE_TRANSLATE_P(TBL) (!EQ (TBL, make_number (0)))
3580 /* If make_number is a function, avoid it. */
3581 #define RE_TRANSLATE_P(TBL) (!(INTEGERP (TBL) && XINT (TBL) == 0))
3585 /* These default definitions are good for almost all machines.
3586 Any exceptions should override them in m/MACHINE.h.
3587 They must be usable in preprocessor conditionals. */
3589 #ifndef BITS_PER_CHAR
3590 #define BITS_PER_CHAR 8
3593 #ifndef BITS_PER_SHORT
3594 #define BITS_PER_SHORT 16
3597 #ifndef BITS_PER_INT
3598 #define BITS_PER_INT 32
3601 #ifndef BITS_PER_LONG
3603 #define BITS_PER_LONG 64
3605 #define BITS_PER_LONG 32
3609 #if !defined BITS_PER_LONG_LONG && HAVE_LONG_LONG_INT
3610 #define BITS_PER_LONG_LONG 64
3613 /* Define if the compiler supports function prototypes. It may do so but
3614 not define __STDC__ (e.g. DEC C by default) or may define it as zero. */
3620 #if defined __GNUC__ && (__GNUC__ > 2 \
3621 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5))
3622 #define NO_RETURN __attribute__ ((__noreturn__))
3624 #define NO_RETURN /* nothing */
3627 #if __GNUC__ >= 3 /* On GCC 3.0 we might get a warning. */
3628 #define NO_INLINE __attribute__((noinline))
3633 #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))
3634 #define EXTERNALLY_VISIBLE __attribute__((externally_visible))
3636 #define EXTERNALLY_VISIBLE
3639 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
3640 # define ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
3642 # define ATTRIBUTE_FORMAT(spec) /* empty */
3645 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
3646 # define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
3647 ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument))
3649 # define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
3650 ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
3653 /* Some versions of GNU/Linux define noinline in their headers. */
3658 /* These won't be used automatically yet. We also need to know, at least,
3659 that the stack is continuous. */
3661 # ifndef GC_SETJMP_WORKS
3662 /* GC_SETJMP_WORKS is nearly always appropriate for GCC. */
3663 # define GC_SETJMP_WORKS 1
3665 # ifndef GC_LISP_OBJECT_ALIGNMENT
3666 # define GC_LISP_OBJECT_ALIGNMENT (__alignof__ (Lisp_Object))
3670 #endif /* EMACS_CONFIG_H */
3679 #### Report on what we decided to do.
3680 #### Report GTK as a toolkit, even if it doesn't use Xt.
3681 #### It makes printing result more understandable as using GTK sets
3682 #### toolkit_scroll_bars to yes by default.
3683 if test "${HAVE_GTK}" = "yes"; then
3688 if test -n "$machfile"; then
3689 and_machfile=" and \`${machfile}'"
3693 Configured for \`${canonical}'.
3695 Where should the build process find the source code? ${srcdir}
3696 What operating system and machine description files should Emacs use?
3697 \`${opsysfile}'${and_machfile}
3698 What compiler should emacs be built with? ${CC} ${CFLAGS}
3699 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
3700 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
3701 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
3702 What window system should Emacs use? ${window_system}
3703 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
3705 if test -n "${x_includes}"; then
3706 echo " Where do we find X Windows header files? ${x_includes}"
3708 echo " Where do we find X Windows header files? Standard dirs"
3710 if test -n "${x_libraries}"; then
3711 echo " Where do we find X Windows libraries? ${x_libraries}"
3713 echo " Where do we find X Windows libraries? Standard dirs"
3716 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
3717 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
3718 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
3719 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
3720 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
3721 echo " Does Emacs use -lpng? ${HAVE_PNG}"
3722 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
3723 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
3725 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
3726 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
3727 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
3728 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
3729 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
3730 echo " Does Emacs use -lgnutls (2.6.x or higher)? ${HAVE_GNUTLS}"
3731 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
3733 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
3734 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
3735 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
3736 echo " Does Emacs use -lxft? ${HAVE_XFT}"
3738 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
3741 if test $USE_XASSERTS = yes; then
3742 echo " Compiling with asserts turned on."
3743 CPPFLAGS="$CPPFLAGS -DXASSERTS=1"
3748 if test "$HAVE_NS" = "yes"; then
3750 echo "You must run \"make install\" in order to test the built application.
3751 The installed application will go to nextstep/Emacs.app and can be
3752 run or moved from there."
3753 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
3754 echo "The application will be fully self-contained."
3756 echo "The lisp resources for the application will be installed under ${prefix}.
3757 You may need to run \"make install\" with sudo. The application will fail
3758 to run if these resources are not installed."
3764 # Remove any trailing slashes in these variables.
3765 [test "${prefix}" != NONE &&
3766 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
3767 test "${exec_prefix}" != NONE &&
3768 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
3770 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
3771 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
3772 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
3773 dnl (else you get "no `Makefile.am' found for any configure output").
3774 dnl This will work, but you get a config.status that is not quite right
3775 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
3776 dnl That doesn't have any obvious consequences for Emacs, but on the whole
3777 dnl it seems better to just live with the duplication.
3778 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"
3780 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
3781 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
3782 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
3785 dnl test/ is not present in release tarfiles.
3786 opt_makefile=test/automated/Makefile
3788 if test -f $srcdir/${opt_makefile}.in; then
3789 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
3790 dnl Again, it's best not to use a variable. Though you can add
3791 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
3792 AC_CONFIG_FILES([test/automated/Makefile])
3795 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
3797 AC_SUBST(SUBDIR_MAKEFILES_IN)
3799 dnl Make the necessary directories, if they don't exist.
3800 AC_CONFIG_COMMANDS([mkdirs], [
3801 for dir in etc lisp ; do
3802 test -d ${dir} || mkdir ${dir}
3806 dnl You might wonder (I did) why epaths.h is generated by running make,
3807 dnl rather than just letting configure generate it from epaths.in.
3808 dnl One reason is that the various paths are not fully expanded (see above);
3809 dnl eg gamedir=${prefix}/var/games/emacs.
3810 dnl Secondly, the GNU Coding standards require that one should be able
3811 dnl to run `make prefix=/some/where/else' and override the values set
3812 dnl by configure. This also explains the `move-if-change' test and
3813 dnl the use of force in the `epaths-force' rule in Makefile.in.
3814 AC_CONFIG_COMMANDS([epaths], [
3815 echo creating src/epaths.h
3816 ${MAKE-make} epaths-force
3817 ], [GCC="$GCC" NON_GNU_CPP="$NON_GNU_CPP" CPP="$CPP" CPPFLAGS="$CPPFLAGS"])
3819 AC_CONFIG_COMMANDS([gdbinit], [
3820 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
3821 echo creating src/.gdbinit
3822 echo source $srcdir/src/.gdbinit > src/.gdbinit
3828 dnl configure.in ends here