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dnl Autoconf script for GNU Emacs
dnl To rebuild the `configure' script from this, execute the command
dnl autoconf
dnl in the directory containing this script.
dnl If you changed any AC_DEFINES, also run autoheader.
dnl
dnl Copyright (C) 1994-1996, 1999-2015 Free Software Foundation, Inc.
dnl
dnl This file is part of GNU Emacs.
dnl
dnl GNU Emacs is free software: you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation, either version 3 of the License, or
dnl (at your option) any later version.
dnl
dnl GNU Emacs is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
AC_PREREQ(2.65)
AC_INIT(emacs, 24.4.90)
dnl We get MINGW64 with MSYS2
if test "x$MSYSTEM" = "xMINGW32" -o "x$MSYSTEM" = "xMINGW64"
then
. $srcdir/nt/mingw-cfg.site
case $srcdir in
/* | ?:*)
# srcdir is an absolute path. In this case, force the format
# "/c/foo/bar", to simplify later conversions to native Windows
# format ("c:/foo/bar")
srcdir=`cd "${srcdir}" && pwd -W`
# 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
;;
esac
fi
dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
dnl and then quoted again for a C string. Separate options with spaces.
dnl Add some environment variables, if they were passed via the environment
dnl rather than on the command-line.
emacs_config_options=
optsep=
dnl This is the documented way to record the args passed to configure,
dnl rather than $ac_configure_args.
for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
case $opt in
-n | --no-create | --no-recursion)
continue ;;
CFLAGS | CPPFLAGS | LDFLAGS)
eval 'test "${'$opt'+set}" = set' || continue
case " $*" in
*" $opt="*) continue ;;
esac
eval opt=$opt=\$$opt ;;
esac
emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
case $opt in
*[["$emacs_shell_specials"]]*)
case $opt in
*\'*)
emacs_quote_apostrophes="s/'/'\\\\''/g"
opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
esac
opt="'$opt'"
case $opt in
*[['"\\']]*)
emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
esac ;;
esac
AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
optsep=' '
done
AC_CONFIG_HEADERS(src/config.h:src/config.in)
AC_CONFIG_SRCDIR(src/lisp.h)
AC_CONFIG_AUX_DIR(build-aux)
xcsdkdir=
AC_CHECK_PROGS(XCRUN, [xcrun])
if test -n "$XCRUN"; then
if test -z "$MAKE"; then
dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
dnl SET_MAKE and with the usual MAKE variable that 'make' itself uses.
AC_CHECK_PROG([MAKE_PROG], [make], [yes])
if test -z "$MAKE_PROG"; then
MAKE="$XCRUN MAKE"
export MAKE
xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
fi
fi
fi
dnl Fairly arbitrary, older versions might work too.
AM_INIT_AUTOMAKE(1.11)
dnl Support for --program-prefix, --program-suffix and
dnl --program-transform-name options
AC_ARG_PROGRAM
dnl It is important that variables on the RHS not be expanded here,
dnl hence the single quotes. This is per the GNU coding standards, see
dnl (autoconf) Installation Directory Variables
dnl See also epaths.h below.
lispdir='${datadir}/emacs/${version}/lisp'
standardlisppath='${lispdir}'
locallisppath='${datadir}/emacs/${version}/site-lisp:'\
'${datadir}/emacs/site-lisp'
lisppath='${locallisppath}:${standardlisppath}'
etcdir='${datadir}/emacs/${version}/etc'
archlibdir='${libexecdir}/emacs/${version}/${configuration}'
etcdocdir='${datadir}/emacs/${version}/etc'
gamedir='${localstatedir}/games/emacs'
dnl Special option to disable the most of other options.
AC_ARG_WITH(all,
[AS_HELP_STRING([--without-all],
[omit almost all features and build
small executable with minimal dependencies])],
[with_features=$withval],
[with_features=yes])
dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
dnl Create a new --with option that defaults to being disabled.
dnl NAME is the base name of the option. The shell variable with_NAME
dnl will be set to either the user's value (if the option is
dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
dnl option is not specified). Note that the shell variable name is
dnl constructed as autoconf does, by replacing non-alphanumeric
dnl characters with "_".
dnl HELP-STRING is the help text for the option.
AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
])dnl
dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
dnl Create a new --with option that defaults to $with_features.
dnl NAME is the base name of the option. The shell variable with_NAME
dnl will be set either to 'no' (for a plain --without-NAME) or to
dnl 'yes' (if the option is not specified). Note that the shell
dnl variable name is constructed as autoconf does, by replacing
dnl non-alphanumeric characters with "_".
dnl HELP-STRING is the help text for the option.
AC_DEFUN([OPTION_DEFAULT_ON], [dnl
AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
])dnl
OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
if test "$with_pop" = yes; then
AC_DEFINE(MAIL_USE_POP)
fi
AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
if test "$with_kerberos" != no; then
AC_DEFINE(KERBEROS)
fi
AH_TEMPLATE(KERBEROS,
[Define to support Kerberos-authenticated POP mail retrieval.])dnl
OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
if test "${with_kerberos5}" != no; then
if test "${with_kerberos}" = no; then
with_kerberos=yes
AC_DEFINE(KERBEROS)
fi
AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
fi
OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
dnl FIXME hesiod support may not be present, so it seems like an error
dnl to define, or at least use, this unconditionally.
if test "$with_hesiod" != no; then
AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
fi
OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
if test "$with_mmdf" != no; then
AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
fi
OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
if test "$with_mail_unlink" != no; then
AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
fi
AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
[string giving default POP mail host])],
AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
[compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
[ case "${withval}" in
yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
*) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
;;
esac
with_sound=$val
],
[with_sound=$with_features])
dnl FIXME currently it is not the last.
dnl This should be the last --with option, because --with-x is
dnl added later on when we find the file name of X, and it's best to
dnl keep them together visually.
AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
[use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
[ case "${withval}" in
y | ye | yes ) val=gtk ;;
n | no ) val=no ;;
l | lu | luc | luci | lucid ) val=lucid ;;
a | at | ath | athe | athen | athena ) val=athena ;;
m | mo | mot | moti | motif ) val=motif ;;
g | gt | gtk ) val=gtk ;;
gtk2 ) val=gtk2 ;;
gtk3 ) val=gtk3 ;;
* )
AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
`gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
`athena' and `lucid' are synonyms.])
;;
esac
with_x_toolkit=$val
])
OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
if test "$with_wide_int" = yes; then
AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
fi
dnl _ON results in a '--without' option in the --help output, so
dnl the help text should refer to "don't compile", etc.
with_xpm_set=${with_xpm+set}
OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
OPTION_DEFAULT_OFF([mac],[use GUI on Mac OS X])
OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
[use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
[ case "${withval}" in
y | ye | yes ) val=yes ;;
n | no ) val=no ;;
g | gf | gfi | gfil | gfile ) val=gfile ;;
i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
w | w3 | w32 ) val=w32 ;;
* ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
`yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
otherwise for the first of `gfile' or `inotify' that is usable.])
;;
esac
with_file_notification=$val
],
[with_file_notification=$with_features])
## For the times when you want to build Emacs but don't have
## a suitable makeinfo, and can live without the manuals.
dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
## Makefile.in needs the cache file name.
AC_SUBST(cache_file)
## This is an option because I do not know if all info/man support
## compressed files, nor how to test if they do so.
OPTION_DEFAULT_ON([compress-install],
[don't compress some files (.el, .info, etc.) when installing. Equivalent to:
make GZIP_PROG= install])
AC_ARG_WITH([pkg-config-prog],dnl
[AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
[file name of pkg-config for finding GTK and librsvg])])
if test "X${with_pkg_config_prog}" != X; then
if test "${with_pkg_config_prog}" != yes; then
PKG_CONFIG="${with_pkg_config_prog}"
fi
fi
AC_ARG_WITH(gameuser,dnl
[AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
&& gameuser="${with_gameuser}"
test "X$gameuser" = X && gameuser=games
AC_ARG_ENABLE(mac-app,
[AS_HELP_STRING([--enable-mac-app@<:@=DIR@:>@],
[specify install directory for Emacs.app on Mac OS X
[DIR=/Application]])],
[ mac_appdir_x=${enableval}])
AC_ARG_WITH([gnustep-conf],dnl
[AS_HELP_STRING([--with-gnustep-conf=FILENAME],
[name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
test "X$GNUSTEP_CONFIG_FILE" = "X" && \
GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
AC_ARG_ENABLE(ns-self-contained,
[AS_HELP_STRING([--disable-ns-self-contained],
[disable self contained build under NeXTstep])],
EN_NS_SELF_CONTAINED=$enableval,
EN_NS_SELF_CONTAINED=yes)
AC_ARG_ENABLE(locallisppath,
[AS_HELP_STRING([--enable-locallisppath=PATH],
[directories Emacs should search for lisp files specific
to this site])],
if test "${enableval}" = "no"; then
locallisppath=
elif test "${enableval}" != "yes"; then
locallisppath=${enableval}
fi)
AC_ARG_ENABLE(checking,
[AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
[enable expensive run-time checks. With LIST,
enable only specific categories of checks.
Categories are: all,yes,no.
Flags are: stringbytes, stringoverrun, stringfreelist,
xmallocoverrun, conslist, glyphs])],
[ac_checking_flags="${enableval}"],[])
IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
for check in $ac_checking_flags
do
case $check in
# these set all the flags to specific states
yes) ac_enable_checking=1 ;;
no) ac_enable_checking= ;
ac_gc_check_stringbytes= ;
ac_gc_check_string_overrun= ;
ac_gc_check_string_free_list= ;
ac_xmalloc_overrun= ;
ac_gc_check_cons_list= ;
ac_glyphs_debug= ;;
all) ac_enable_checking=1 ;
ac_gc_check_stringbytes=1 ;
ac_gc_check_string_overrun=1 ;
ac_gc_check_string_free_list=1 ;
ac_xmalloc_overrun=1 ;
ac_gc_check_cons_list=1 ;
ac_glyphs_debug=1 ;;
# these enable particular checks
stringbytes) ac_gc_check_stringbytes=1 ;;
stringoverrun) ac_gc_check_string_overrun=1 ;;
stringfreelist) ac_gc_check_string_free_list=1 ;;
xmallocoverrun) ac_xmalloc_overrun=1 ;;
conslist) ac_gc_check_cons_list=1 ;;
glyphs) ac_glyphs_debug=1 ;;
*) AC_MSG_ERROR(unknown check category $check) ;;
esac
done
IFS="$ac_save_IFS"
if test x$ac_enable_checking != x ; then
AC_DEFINE(ENABLE_CHECKING, 1,
[Define to 1 if expensive run-time data type and consistency checks are enabled.])
fi
if test x$ac_gc_check_stringbytes != x ; then
AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
[Define this temporarily to hunt a bug. If defined, the size of
strings is redundantly recorded in sdata structures so that it can
be compared to the sizes recorded in Lisp strings.])
fi
if test x$ac_gc_check_string_overrun != x ; then
AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
[Define this to check for short string overrun.])
fi
if test x$ac_gc_check_string_free_list != x ; then
AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
[Define this to check the string free list.])
fi
if test x$ac_xmalloc_overrun != x ; then
AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
[Define this to check for malloc buffer overrun.])
fi
if test x$ac_gc_check_cons_list != x ; then
AC_DEFINE(GC_CHECK_CONS_LIST, 1,
[Define this to check for errors in cons list.])
fi
if test x$ac_glyphs_debug != x ; then
AC_DEFINE(GLYPH_DEBUG, 1,
[Define this to enable glyphs debugging code.])
fi
AC_ARG_ENABLE(check-lisp-object-type,
[AS_HELP_STRING([--enable-check-lisp-object-type],
[enable compile time checks for the Lisp_Object data type.
This is useful for development for catching certain types of bugs.])],
if test "${enableval}" != "no"; then
AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
[Define this to enable compile time checks for the Lisp_Object data type.])
fi)
dnl The name of this option is unfortunate. It predates, and has no
dnl relation to, the "sampling-based elisp profiler" added in 24.3.
dnl Actually, it stops it working.
dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
AC_ARG_ENABLE(profiling,
[AS_HELP_STRING([--enable-profiling],
[build emacs with low-level, gprof profiling support.
Mainly useful for debugging Emacs itself. May not work on
all platforms. Stops profiler.el working.])],
[ac_enable_profiling="${enableval}"],[])
if test x$ac_enable_profiling != x ; then
PROFILING_CFLAGS="-DPROFILING=1 -pg"
else
PROFILING_CFLAGS=
fi
AC_SUBST(PROFILING_CFLAGS)
AC_ARG_ENABLE(autodepend,
[AS_HELP_STRING([--enable-autodepend],
[automatically generate dependencies to .h-files.
Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
found])],
[ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
AC_ARG_ENABLE(gtk-deprecation-warnings,
[AS_HELP_STRING([--enable-gtk-deprecation-warnings],
[Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
[ac_enable_gtk_deprecation_warnings="${enableval}"],[])
### Canonicalize the configuration name.
AC_CANONICAL_HOST
canonical=$host
configuration=${host_alias-${build_alias-$host}}
dnl This used to use changequote, but, apart from `changequote is evil'
dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
dnl the great gob of text. Thus it's not processed for possible expansion.
dnl Just make sure the brackets remain balanced.
dnl
dnl Since Emacs can't find matching pairs of quotes, boundaries are
dnl indicated by comments.
dnl quotation begins
[
### If you add support for a new configuration, add code to this
### switch statement to recognize your configuration name and select
### the appropriate opsys.
### As far as handling version numbers on operating systems is
### concerned, make sure things will fail in a fixable way. If
### /etc/MACHINES doesn't say anything about version numbers, be
### prepared to handle anything reasonably. If version numbers
### matter, be sure /etc/MACHINES says something about it.
opsys='' unported=no
case "${canonical}" in
## GNU/Linux and similar ports
*-*-linux* )
opsys=gnu-linux
;;
## FreeBSD ports
*-*-freebsd* )
opsys=freebsd
;;
## DragonFly ports
*-*-dragonfly* )
opsys=dragonfly
;;
## FreeBSD kernel + glibc based userland
*-*-kfreebsd*gnu* )
opsys=gnu-kfreebsd
;;
## NetBSD ports
*-*-netbsd* )
opsys=netbsd
;;
## OpenBSD ports
*-*-openbsd* | *-*-mirbsd* )
opsys=openbsd
;;
## Apple Darwin / Mac OS X
*-apple-darwin* )
case "${canonical}" in
i[3456]86-* ) ;;
powerpc-* ) ;;
x86_64-* ) ;;
* ) unported=yes ;;
esac
opsys=darwin
## Use fink packages if available.
## FIXME find a better way to do this: http://debbugs.gnu.org/11507
## if test -d /sw/include && test -d /sw/lib; then
## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
## fi
;;
## Cygwin ports
*-*-cygwin )
opsys=cygwin
;;
## HP 9000 series 700 and 800, running HP/UX
hppa*-hp-hpux10.2* )
opsys=hpux10-20
;;
hppa*-hp-hpux1[1-9]* )
opsys=hpux11
CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
;;
## IBM machines
rs6000-ibm-aix4.[23]* )
opsys=aix4-2
;;
powerpc-ibm-aix4.[23]* )
opsys=aix4-2
;;
rs6000-ibm-aix[56]* )
opsys=aix4-2
;;
powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
opsys=aix4-2
;;
## Silicon Graphics machines
## Iris 4D
mips-sgi-irix6.5 )
opsys=irix6-5
# Without defining _LANGUAGE_C, things get masked out in the headers
# so that, for instance, grepping for `free' in stdlib.h fails and
# AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
;;
## Suns
*-sun-solaris* \
| i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
| x86_64-*-solaris2* | x86_64-*-sunos5*)
case "${canonical}" in
i[3456]86-*-* ) ;;
amd64-*-*|x86_64-*-*) ;;
sparc* ) ;;
* ) unported=yes ;;
esac
case "${canonical}" in
*-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
opsys=sol2-10
emacs_check_sunpro_c=yes
;;
*-sunos5.6* | *-solaris2.6* )
opsys=sol2-6
RANLIB="ar -ts"
;;
*-sunos5.[7-9]* | *-solaris2.[7-9]* )
opsys=sol2-6
emacs_check_sunpro_c=yes
;;
esac
## Watch out for a compiler that we know will not work.
case "${canonical}" in
*-solaris* | *-sunos5* )
if [ "x$CC" = x/usr/ucb/cc ]; then
## /usr/ucb/cc doesn't work;
## we should find some other compiler that does work.
unset CC
fi
;;
*) ;;
esac
;;
## Intel 386 machines where we don't care about the manufacturer.
i[3456]86-*-* )
case "${canonical}" in
*-darwin* ) opsys=darwin ;;
*-mingw32 )
opsys=mingw32
# MinGW overrides and adds some system headers in nt/inc.
GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
;;
*-sysv4.2uw* ) opsys=unixware ;;
*-sysv5uw* ) opsys=unixware ;;
*-sysv5OpenUNIX* ) opsys=unixware ;;
## Otherwise, we'll fall through to the generic opsys code at the bottom.
esac
;;
# MinGW64
x86_64-*-* )
case "${canonical}" in
*-mingw32 )
opsys=mingw32
# MinGW overrides and adds some system headers in nt/inc.
GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
;;
## Otherwise, we'll fall through to the generic opsys code at the bottom.
esac
;;
* )
unported=yes
;;
esac
### If the code above didn't choose an operating system, just choose
### an operating system based on the configuration name. You really
### only want to use this when you have no idea what the right
### operating system is; if you know what operating systems a machine
### runs, it's cleaner to make it explicit in the case statement
### above.
if test x"${opsys}" = x; then
case "${canonical}" in
*-gnu* ) opsys=gnu ;;
* )
unported=yes
;;
esac
fi
]
dnl quotation ends
if test $unported = yes; then
AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
If you think it should, please send a report to bug-gnu-emacs@gnu.org.
Check `etc/MACHINES' for recognized configuration names.])
fi
#### Choose a compiler.
dnl Sets GCC=yes if using gcc.
AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
if test -n "$XCRUN"; then
AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
test -n "$AR" && export AR
fi
AM_PROG_CC_C_O
if test x$GCC = xyes; then
test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
else
test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
fi
dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
dnl alternative to lib/gnulib.mk, so as to avoid generating header files
dnl that clash with MinGW.
AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
# Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
AC_DEFUN([gl_CRYPTO_CHECK])
# Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
# as we don't use them.
AC_DEFUN([gl_FCNTL_O_FLAGS])
# Avoid gnulib's threadlib module, as we do threads our own way.
AC_DEFUN([gl_THREADLIB])
# Initialize gnulib right after choosing the compiler.
dnl Amongst other things, this sets AR and ARFLAGS.
gl_EARLY
if test "$ac_test_CFLAGS" != set; then
# It's helpful to have C macros available to GDB, so prefer -g3 to -g
# if -g3 works and the user does not specify CFLAGS.
# This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
case $CFLAGS in
'-g')
emacs_g3_CFLAGS='-g3';;
'-g -O2')
emacs_g3_CFLAGS='-g3 -O2';;
*)
emacs_g3_CFLAGS='';;
esac
if test -n "$emacs_g3_CFLAGS"; then
emacs_save_CFLAGS=$CFLAGS
CFLAGS=$emacs_g3_CFLAGS
AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
[emacs_cv_prog_cc_g3],
[AC_LINK_IFELSE([AC_LANG_PROGRAM()],
[emacs_cv_prog_cc_g3=yes],
[emacs_cv_prog_cc_g3=no])])
if test $emacs_cv_prog_cc_g3 != yes; then
CFLAGS=$emacs_save_CFLAGS
fi
if test $opsys = mingw32; then
CFLAGS="$CFLAGS -gdwarf-2"
fi
fi
case $CFLAGS in
*-O*) ;;
*)
# No optimization flag was inferred for this non-GCC compiler.
# Try -O. This is needed for xlc on AIX; see Bug#14258.
emacs_save_CFLAGS=$CFLAGS
test -z "$CFLAGS" || CFLAGS="$CFLAGS "
CFLAGS=${CFLAGS}-O
AC_CACHE_CHECK([whether $CC accepts -O],
[emacs_cv_prog_cc_o],
[AC_LINK_IFELSE([AC_LANG_PROGRAM()],
[emacs_cv_prog_cc_o=yes],
[emacs_cv_prog_cc_o=no])])
if test $emacs_cv_prog_cc_o != yes; then
CFLAGS=$emacs_save_CFLAGS
fi ;;
esac
fi
AC_ARG_ENABLE([gcc-warnings],
[AS_HELP_STRING([--enable-gcc-warnings],
[turn on lots of GCC warnings/errors. This is intended for
developers, and may generate false alarms when used
with older or non-GNU development tools.])],
[case $enableval in
yes|no) ;;
*) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
esac
gl_gcc_warnings=$enableval],
[gl_gcc_warnings=no]
)
AC_ARG_ENABLE(link-time-optimization,
[AS_HELP_STRING([--enable-link-time-optimization],
[build emacs with link-time optimization.
This requires GCC 4.5.0 or later.
It also makes Emacs harder to debug, and when we tried it
with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
recommended for typical use.])],
if test "${enableval}" != "no"; then
AC_MSG_CHECKING([whether link-time optimization is supported])
ac_lto_supported=no
if test x$GCC = xyes; then
CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
if test x$CPUS != x; then
LTO="-flto=$CPUS"
else
LTO="-flto"
fi
old_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS $LTO"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
[ac_lto_supported=yes], [ac_lto_supported=no])
CFLAGS="$old_CFLAGS"
fi
AC_MSG_RESULT([$ac_lto_supported])
if test "$ac_lto_supported" = "yes"; then
CFLAGS="$CFLAGS $LTO"
dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
dnl dump core on Fedora 20, so play it safe for now.
gl_COMPILER_OPTION_IF([-ffat-lto-objects],
[CFLAGS="$CFLAGS -ffat-lto-objects"])
fi
fi)
# clang is unduly picky about some things.
AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[
#ifndef __clang__
error "not clang";
#endif
]])],
[emacs_cv_clang=yes],
[emacs_cv_clang=no])])
# When compiling with GCC, prefer -isystem to -I when including system
# include files, to avoid generating useless diagnostics for the files.
if test "$gl_gcc_warnings" != yes; then
isystem='-I'
if test "$emacs_cv_clang" = yes
then
# Turn off some warnings if supported.
gl_WARN_ADD([-Wno-switch])
gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
gl_WARN_ADD([-Wno-pointer-sign])
fi
else
isystem='-isystem '
# This, $nw, is the list of warnings we disable.
nw=
case $with_x_toolkit in
lucid | athena | motif)
# Old toolkits mishandle 'const'.
nw="$nw -Wwrite-strings"
;;
*)
gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
;;
esac
AC_SUBST([WERROR_CFLAGS])
nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
nw="$nw -Woverlength-strings" # Not a problem these days
nw="$nw -Wlogical-op" # any use of fwrite provokes this
nw="$nw -Wformat-nonliteral" # we do this a lot
nw="$nw -Wvla" # warnings in gettext.h
nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
nw="$nw -Wswitch-default" # Too many warnings for now
nw="$nw -Winline" # OK to ignore 'inline'
nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
nw="$nw -Wstrict-overflow" # OK to optimize assuming that
# signed overflow has undefined behavior
nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
nw="$nw -Wbad-function-cast" # These casts are no worse than others.
# Emacs doesn't care about shadowing; see
# <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
nw="$nw -Wshadow"
# Emacs's use of alloca inhibits protecting the stack.
nw="$nw -Wstack-protector"
# The following line should be removable at some point.
nw="$nw -Wsuggest-attribute=pure"
# This part is merely for shortening the command line,
# since -Wno-FOO needs to be added below regardless.
nw="$nw -Wmissing-field-initializers"
nw="$nw -Wswitch"
nw="$nw -Wtype-limits"
nw="$nw -Wunused-parameter"
if test $emacs_cv_clang = yes; then
nw="$nw -Wcast-align"
fi
gl_MANYWARN_ALL_GCC([ws])
gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
for w in $ws; do
gl_WARN_ADD([$w])
done
gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
gl_WARN_ADD([-Wno-format-nonliteral])
# In spite of excluding -Wlogical-op above, it is enabled, as of
# gcc 4.5.0 20090517.
gl_WARN_ADD([-Wno-logical-op])
# More things that clang is unduly picky about.
if test $emacs_cv_clang = yes; then
gl_WARN_ADD([-Wno-format-extra-args])
gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
gl_WARN_ADD([-Wno-unused-command-line-argument])
gl_WARN_ADD([-Wno-unused-value])
fi
AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
AH_VERBATIM([FORTIFY_SOURCE],
[/* Enable compile-time and run-time bounds-checking, and some warnings,
without upsetting glibc 2.15+. */
#if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
# define _FORTIFY_SOURCE 2
#endif
])
AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
# We use a slightly smaller set of warning options for lib/.
# Remove the following and save the result in GNULIB_WARN_CFLAGS.
nw=
nw="$nw -Wunused-macros"
gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
AC_SUBST([GNULIB_WARN_CFLAGS])
fi
edit_cflags="
s,///*,/,g
s/^/ /
s/ -I/ $isystem/g
s/^ //
"
dnl Some other nice autoconf tests.
dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
dnl AC_PROG_INSTALL
dnl AC_PROG_MKDIR_P
dnl if test "x$RANLIB" = x; then
dnl AC_PROG_RANLIB
dnl fi
dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
dnl can be made to directories. This is not relevant for our usage, and
dnl excludes some cases that work fine for us. Eg MS Windows or files
dnl hosted on AFS, both examples where simple links work, but links to
dnl directories fail. We use a cut-down version instead.
dnl AC_PROG_LN_S
AC_MSG_CHECKING([whether ln -s works for files in the same directory])
rm -f conf$$ conf$$.file
LN_S_FILEONLY='cp -p'
dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
dnl random program in the current directory.
if (echo >conf$$.file) 2>/dev/null; then
if ln -s conf$$.file conf$$ 2>/dev/null; then
if test "$opsys" = "mingw32"; then
LN_S_FILEONLY='/bin/ln -s'
else
LN_S_FILEONLY='ln -s'
fi
elif ln conf$$.file conf$$ 2>/dev/null; then
if test "$opsys" = "mingw32"; then
LN_S_FILEONLY=/bin/ln
else
LN_S_FILEONLY=ln
fi
fi
fi
rm -f conf$$ conf$$.file
if test "$LN_S_FILEONLY" = "ln -s"; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no, using $LN_S_FILEONLY])
fi
AC_SUBST(LN_S_FILEONLY)
dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
dnl doesn't support links to directories, as in "ln file dir". But that
dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
dnl executables at "make install" time.
dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
dnl for more details.
if test "$opsys" = "mingw32"; then
LN_S="/bin/ln"
fi
dnl On some Debian versions, "install-info" prints irritating messages
dnl "This is not dpkg install-info anymore, but GNU install-info"
dnl if called via an absolute file name.
dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
dnl Sadly some people may have an old ginstall-info installed on
dnl non-Debian systems, so we can't use this.
dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
AC_PATH_PROG(INSTALL_INFO, install-info, :,
$PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
dnl Don't use GZIP, which is used by gzip for additional parameters.
AC_PATH_PROG(GZIP_PROG, gzip)
test $with_compress_install != yes && test -n "$GZIP_PROG" && \
GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
if test $opsys = gnu-linux; then
AC_PATH_PROG(PAXCTL, paxctl,,
[$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
if test "X$PAXCTL" != X; then
AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
[if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
else AC_MSG_RESULT(no); PAXCTL=""; fi])
fi
if test "${SETFATTR+set}" != set; then
AC_CACHE_CHECK([for setfattr],
[emacs_cv_prog_setfattr],
[touch conftest.tmp
if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
emacs_cv_prog_setfattr=yes
else
emacs_cv_prog_setfattr=no
fi])
if test "$emacs_cv_prog_setfattr" = yes; then
SETFATTR=setfattr
else
SETFATTR=
fi
rm -f conftest.tmp
AC_SUBST([SETFATTR])
fi
fi
## Need makeinfo >= 4.7 (?) to build the manuals.
AC_PATH_PROG(MAKEINFO, makeinfo, no)
dnl By this stage, configure has already checked for egrep and set EGREP,
dnl or exited with an error if no egrep was found.
if test "$MAKEINFO" != "no"; then
case `
$MAKEINFO --version 2> /dev/null |
$EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
` in
'') MAKEINFO=no;;
esac
fi
## Makeinfo is unusual. For a released Emacs, the manuals are
## pre-built, and not deleted by the normal clean rules. makeinfo is
## therefore in the category of "special tools" not normally required, which
## configure does not have to check for (eg autoconf itself).
## In a repository checkout on the other hand, the manuals are not included.
## So makeinfo is a requirement to build from the repository, and configure
## should test for it as it does for any other build requirement.
## We use the presence of $srcdir/info/emacs to distinguish a release,
## with pre-built manuals, from a repository checkout.
HAVE_MAKEINFO=yes
if test "$MAKEINFO" = "no"; then
MAKEINFO=makeinfo
if test "x${with_makeinfo}" = "xno"; then
HAVE_MAKEINFO=no
elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
source tree does not seem to have pre-built manuals in the `info' directory.
Either install a suitable version of makeinfo, or re-run configure
with the `--without-makeinfo' option to build without the manuals.] )
fi
fi
AC_SUBST(HAVE_MAKEINFO)
dnl Just so that there is only a single place we need to edit.
INFO_EXT=.info
INFO_OPTS=--no-split
AC_SUBST(INFO_EXT)
AC_SUBST(INFO_OPTS)
if test $opsys = mingw32; then
DOCMISC_W32=efaq-w32
else
DOCMISC_W32=
fi
AC_SUBST(DOCMISC_W32)
dnl Add our options to ac_link now, after it is set up.
if test x$GCC = xyes; then
test "x$GCC_LINK_TEST_OPTIONS" != x && \
ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
else
test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
fi
dnl We need -znocombreloc if we're using a relatively recent GNU ld.
dnl If we can link with the flag, it shouldn't do any harm anyhow.
dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
dnl if not built to support GNU ld.
dnl For a long time, -znocombreloc was added to LDFLAGS rather than
dnl LD_SWITCH_SYSTEM_TEMACS. That is:
dnl * inappropriate, as LDFLAGS is a user option but this is essential.
dnl Eg "make LDFLAGS=... all" could run into problems,
dnl http://bugs.debian.org/684788
dnl * unnecessary, since temacs is the only thing that actually needs it.
dnl Indeed this is where it was originally, prior to:
dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
late_LDFLAGS="$LDFLAGS"
if test x$GCC = xyes; then
LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
else
LDFLAGS_NOCOMBRELOC="-znocombreloc"
fi
LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
AC_MSG_CHECKING([for -znocombreloc])
AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
[AC_MSG_RESULT(yes)],
LDFLAGS_NOCOMBRELOC=
[AC_MSG_RESULT(no)])
LDFLAGS="$late_LDFLAGS"
AC_CACHE_CHECK([whether addresses are sanitized],
[emacs_cv_sanitize_address],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#ifndef __has_feature
#define __has_feature(f) 0
#endif
#if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
#else
error "Addresses are not sanitized.";
#endif
]])],
[emacs_cv_sanitize_address=yes],
[emacs_cv_sanitize_address=no])])
dnl The function dump-emacs will not be defined and temacs will do
dnl (load "loadup") automatically unless told otherwise.
test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
case "$opsys" in
your-opsys-here) CANNOT_DUMP=yes ;;
esac
if test "$CANNOT_DUMP" = "yes"; then
AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
elif test "$emacs_cv_sanitize_address" = yes; then
AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
fi
AC_SUBST(CANNOT_DUMP)
UNEXEC_OBJ=unexelf.o
case "$opsys" in
# MSDOS uses unexcoff.o
aix4-2)
UNEXEC_OBJ=unexaix.o
;;
cygwin)
UNEXEC_OBJ=unexcw.o
;;
darwin)
UNEXEC_OBJ=unexmacosx.o
;;
hpux10-20 | hpux11)
UNEXEC_OBJ=unexhp9k800.o
;;
mingw32)
UNEXEC_OBJ=unexw32.o
;;
sol2-10)
# Use the Solaris dldump() function, called from unexsol.c, to dump
# emacs, instead of the generic ELF dump code found in unexelf.c.
# The resulting binary has a complete symbol table, and is better
# for debugging and other observability tools (debuggers, pstack, etc).
#
# If you encounter a problem using dldump(), please consider sending
# a message to the OpenSolaris tools-linking mailing list:
# http://mail.opensolaris.org/mailman/listinfo/tools-linking
#
# It is likely that dldump() works with older Solaris too, but this has
# not been tested, so for now this change is for Solaris 10 or newer.
UNEXEC_OBJ=unexsol.o
;;
esac
LD_SWITCH_SYSTEM=
case "$opsys" in
freebsd|dragonfly)
## Let `ld' find image libs and similar things in /usr/local/lib.
## The system compiler, GCC, has apparently been modified to not
## look there, contrary to what a stock GCC would do.
### It's not our place to do this. See bug#10313#17.
### LD_SWITCH_SYSTEM=-L/usr/local/lib
:
;;
gnu-linux)
## cpp test was "ifdef __mips__", but presumably this is equivalent...
case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
;;
netbsd)
### It's not our place to do this. See bug#10313#17.
### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
:
;;
openbsd)
## Han Boetes <han@boetes.org> says this is necessary,
## otherwise Emacs dumps core on elf systems.
LD_SWITCH_SYSTEM="-Z"
;;
esac
AC_SUBST(LD_SWITCH_SYSTEM)
ac_link="$ac_link $LD_SWITCH_SYSTEM"
## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
## which has not been defined yet. When this was handled with cpp,
## it was expanded to null when configure sourced the s/*.h file.
## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
## (or somesuch), but because it is supposed to go at the _front_
## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
## Compare with the gnu-linux case below, which added to the end
## of LD_SWITCH_SYSTEM, and so can instead go at the front of
## LD_SWITCH_SYSTEM_TEMACS.
case "$opsys" in
netbsd|openbsd)
LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
esac
C_SWITCH_MACHINE=
case $canonical in
alpha*)
AC_CHECK_DECL([__ELF__])
if test "$ac_cv_have_decl___ELF__" = "yes"; then
## With ELF, make sure that all common symbols get allocated to in the
## data section. Otherwise, the dump of temacs may miss variables in
## the shared library that have been initialized. For example, with
## GNU libc, __malloc_initialized would normally be resolved to the
## shared library's .bss section, which is fatal.
if test "x$GCC" = "xyes"; then
C_SWITCH_MACHINE="-fno-common"
else
AC_MSG_ERROR([Non-GCC compilers are not supported.])
fi
else
dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
dnl albeit under the mistaken assumption that said file
dnl was no longer used.
AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
fi
;;
esac
AC_SUBST(C_SWITCH_MACHINE)
AC_SUBST(UNEXEC_OBJ)
C_SWITCH_SYSTEM=
## Some programs in src produce warnings saying certain subprograms
## are too complex and need a MAXMEM value greater than 2000 for
## additional optimization. --nils@exp-math.uni-essen.de
test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
if test "$opsys" = "mingw32"; then
case "$canonical" in
x86_64-*-mingw32) C_SWITCH_SYSTEM="-mtune=generic" ;;
*) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
esac
fi
## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
## It is redundant in glibc2, since we define _GNU_SOURCE.
AC_SUBST(C_SWITCH_SYSTEM)
LIBS_SYSTEM=
case "$opsys" in
## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
## Motif needs -lgen.
unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
esac
AC_SUBST(LIBS_SYSTEM)
### Make sure subsequent tests use flags consistent with the build flags.
if test x"${OVERRIDE_CPPFLAGS}" != x; then
CPPFLAGS="${OVERRIDE_CPPFLAGS}"
else
CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
fi
# Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
AC_DEFUN([AC_TYPE_SIZE_T])
# Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
AC_DEFUN([AC_TYPE_UID_T])
LIB_MATH=-lm
dnl Current possibilities handled by sed (aix4-2 -> aix,
dnl gnu-linux -> gnu/linux, etc.):
dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
case $opsys in
cygwin )
LIB_MATH=
;;
darwin )
## Adding -lm confuses the dynamic linker, so omit it.
LIB_MATH=
;;
freebsd | dragonfly )
SYSTEM_TYPE=berkeley-unix
;;
gnu-linux | gnu-kfreebsd )
;;
hpux10-20 | hpux11 )
;;
mingw32 )
LIB_MATH=
SYSTEM_TYPE=windows-nt
;;
dnl NB this may be adjusted below.
netbsd | openbsd )
SYSTEM_TYPE=berkeley-unix
;;
sol2* | unixware )
SYSTEM_TYPE=usg-unix-v
;;
esac
AC_SUBST(LIB_MATH)
AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
[The type of system you are compiling for; sets `system-type'.])
pre_PKG_CONFIG_CFLAGS=$CFLAGS
pre_PKG_CONFIG_LIBS=$LIBS
AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
dnl This function definition taken from Gnome 2.0
dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
dnl also defines GSTUFF_PKG_ERRORS on error
AC_DEFUN([PKG_CHECK_MODULES], [
succeeded=no
if test "$PKG_CONFIG" = "no" ; then
ifelse([$4], , [AC_MSG_ERROR([
*** The pkg-config script could not be found. Make sure it is in your path, or give the full name of 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])
else
PKG_CONFIG_MIN_VERSION=0.9.0
if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
AC_MSG_CHECKING(for $2)
if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
$1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
$1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
$1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
succeeded=yes
else
AC_MSG_RESULT(no)
$1_CFLAGS=""
$1_LIBS=""
## If we have a custom action on failure, don't print errors, but
## do set a variable so people can do so. Do it in a subshell
## to capture any diagnostics in invoking pkg-config.
$1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
ifelse([$4], ,echo "$$1_PKG_ERRORS",)
fi
AC_SUBST($1_CFLAGS)
AC_SUBST($1_LIBS)
else
echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
echo "*** See http://www.freedesktop.org/software/pkgconfig"
fi
fi
if test $succeeded = yes; then
ifelse([$3], , :, [$3])
else
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.])], [$4])
fi
])
HAVE_SOUND=no
if test "${with_sound}" != "no"; then
# Sound support for GNU/Linux, the free BSDs, and MinGW.
AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
have_sound_header=yes, [], [
#ifdef __MINGW32__
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
])
test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
AC_MSG_ERROR([OSS sound support requested but not found.])
if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
# Emulation library used on NetBSD.
AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
dnl Traditionally, we go on to check for alsa too. Does that make sense?
fi
AC_SUBST(LIBSOUND)
if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
ALSA_REQUIRED=1.0.0
ALSA_MODULES="alsa >= $ALSA_REQUIRED"
PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
if test $HAVE_ALSA = yes; then
SAVE_CFLAGS="$CFLAGS"
SAVE_LIBS="$LIBS"
CFLAGS="$ALSA_CFLAGS $CFLAGS"
LIBS="$ALSA_LIBS $LIBS"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
emacs_alsa_normal=yes,
emacs_alsa_normal=no)
if test "$emacs_alsa_normal" != yes; then
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
[[snd_lib_error_set_handler (0);]])],
emacs_alsa_subdir=yes,
emacs_alsa_subdir=no)
if test "$emacs_alsa_subdir" != yes; then
AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
fi
ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
fi
CFLAGS="$SAVE_CFLAGS"
LIBS="$SAVE_LIBS"
LIBSOUND="$LIBSOUND $ALSA_LIBS"
CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
elif test "${with_sound}" = "alsa"; then
AC_MSG_ERROR([ALSA sound support requested but not found.])
fi
fi dnl with_sound = alsa|yes
dnl Define HAVE_SOUND if we have sound support. We know it works and
dnl compiles only on the specified platforms. For others, it
dnl probably doesn't make sense to try.
dnl FIXME So surely we should bypass this whole section if not using
dnl one of these platforms?
if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
case "$opsys" in
dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
dnl Adjust the --with-sound help text if you change this.
gnu-linux|freebsd|netbsd|mingw32)
AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
HAVE_SOUND=yes
;;
esac
fi
AC_SUBST(CFLAGS_SOUND)
fi
dnl checks for header files
AC_CHECK_HEADERS_ONCE(
sys/systeminfo.h
coff.h pty.h
sys/resource.h
sys/utsname.h pwd.h utmp.h util.h)
AC_MSG_CHECKING(if personality LINUX32 can be set)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
emacs_cv_personality_linux32=yes,
emacs_cv_personality_linux32=no)
AC_MSG_RESULT($emacs_cv_personality_linux32)
if test $emacs_cv_personality_linux32 = yes; then
AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
[Define to 1 if personality LINUX32 can be set.])
fi
dnl On Solaris 8 there's a compilation warning for term.h because
dnl it doesn't define `bool'.
AC_CHECK_HEADERS(term.h, , , -)
AC_HEADER_TIME
AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
]])
if test $ac_cv_have_decl_sys_siglist != yes; then
# For Tru64, at least:
AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
]])
fi
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS_ONCE(sys/socket.h)
AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif])
AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif])
AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif])
dnl checks for structure members
AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
struct ifreq.ifr_addr,
struct ifreq.ifr_addr.sa_len], , ,
[AC_INCLUDES_DEFAULT
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#if HAVE_NET_IF_H
#include <net/if.h>
#endif])
dnl Check for endianness.
dnl AC_C_BIGENDIAN is done by gnulib.
dnl check for Make feature
dnl AC_PROG_MAKE_SET is done by Automake.
DEPFLAGS=
MKDEPDIR=":"
deps_frag=deps.mk
dnl check for GNU Make if we have GCC and autodepend is on.
if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
AC_MSG_CHECKING([whether we are using GNU Make])
HAVE_GNU_MAKE=no
testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
if test "x$testval" != x; then
HAVE_GNU_MAKE=yes
else
ac_enable_autodepend=no
fi
AC_MSG_RESULT([$HAVE_GNU_MAKE])
if test $HAVE_GNU_MAKE = yes; then
AC_MSG_CHECKING([whether gcc understands -MMD -MF])
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
CFLAGS="$SAVE_CFLAGS"
test -f deps.d || ac_enable_autodepend=no
rm -rf deps.d
AC_MSG_RESULT([$ac_enable_autodepend])
fi
if test $ac_enable_autodepend = yes; then
DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
MKDEPDIR='${MKDIR_P} ${DEPDIR}'
deps_frag=autodeps.mk
fi
fi
deps_frag=$srcdir/src/$deps_frag
AC_SUBST(MKDEPDIR)
AC_SUBST(DEPFLAGS)
AC_SUBST_FILE(deps_frag)
lisp_frag=$srcdir/src/lisp.mk
AC_SUBST_FILE(lisp_frag)
dnl checks for operating system services
AC_SYS_LONG_FILE_NAMES
#### Choose a window system.
## We leave window_system equal to none if
## we end up building without one. Any new window system should
## set window_system to an appropriate value and add objects to
## window-system-specific substs.
window_system=none
AC_PATH_X
if test "$no_x" != yes; then
window_system=x11
fi
LD_SWITCH_X_SITE_RPATH=
if test "${x_libraries}" != NONE; then
if test -n "${x_libraries}"; then
LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
fi
x_default_search_path=""
x_search_path=${x_libraries}
if test -z "${x_search_path}"; then
x_search_path=/usr/lib
fi
for x_library in `echo ${x_search_path}: | \
sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
x_search_path="\
${x_library}/X11/%L/%T/%N%C%S:\
${x_library}/X11/%l/%T/%N%C%S:\
${x_library}/X11/%T/%N%C%S:\
${x_library}/X11/%L/%T/%N%S:\
${x_library}/X11/%l/%T/%N%S:\
${x_library}/X11/%T/%N%S"
if test x"${x_default_search_path}" = x; then
x_default_search_path=${x_search_path}
else
x_default_search_path="${x_search_path}:${x_default_search_path}"
fi
done
fi
AC_SUBST(LD_SWITCH_X_SITE_RPATH)
if test "${x_includes}" != NONE && test -n "${x_includes}"; then
C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
fi
if test x"${x_includes}" = x; then
bitmapdir=/usr/include/X11/bitmaps
else
# accumulate include directories that have X11 bitmap subdirectories
bmd_acc="dummyval"
for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
if test -d "${bmd}/X11/bitmaps"; then
bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
fi
if test -d "${bmd}/bitmaps"; then
bmd_acc="${bmd_acc}:${bmd}/bitmaps"
fi
done
if test ${bmd_acc} != "dummyval"; then
bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
fi
fi
HAVE_MACGUI=no
if test "${with_mac}" != no; then
AC_CHECK_HEADER(Carbon/Carbon.h, HAVE_MACGUI=yes)
test "${HAVE_MACGUI}" = yes && window_system=mac
fi
HAVE_NS=no
NS_IMPL_COCOA=no
NS_IMPL_GNUSTEP=no
tmp_CPPFLAGS="$CPPFLAGS"
tmp_CFLAGS="$CFLAGS"
CPPFLAGS="$CPPFLAGS -x objective-c"
CFLAGS="$CFLAGS -x objective-c"
GNU_OBJC_CFLAGS=
LIBS_GNUSTEP=
if test "${with_ns}" != no; then
if test "${opsys}" = darwin; then
NS_IMPL_COCOA=yes
ns_appdir=`pwd`/nextstep/Emacs.app
ns_appbindir=${ns_appdir}/Contents/MacOS
ns_appresdir=${ns_appdir}/Contents/Resources
ns_appsrc=Cocoa/Emacs.base
elif test -f $GNUSTEP_CONFIG_FILE; then
NS_IMPL_GNUSTEP=yes
ns_appdir=`pwd`/nextstep/Emacs.app
ns_appbindir=${ns_appdir}
ns_appresdir=${ns_appdir}/Resources
ns_appsrc=GNUstep/Emacs.base
dnl FIXME sourcing this several times in subshells seems inefficient.
GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
dnl I seemed to need these as well with GNUstep-startup 0.25.
GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
dnl If they had chosen to either define it or not, we could have
dnl just used AC_CHECK_DECL here.
AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
emacs_cv_objc_exceptions,
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
[[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1;
#else
fail;
#endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
if test $emacs_cv_objc_exceptions = yes; then
dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
[Define if GNUstep uses ObjC exceptions.])
GNU_OBJC_CFLAGS="-fobjc-exceptions"
fi
fi
dnl This is only used while we test the NS headers, it gets reset below.
CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
[AC_MSG_ERROR([`--with-ns' was specified, but the include
files are missing or cannot be compiled.])])
macfont_file=""
if test "${NS_IMPL_COCOA}" = "yes"; then
AC_MSG_CHECKING([for OSX 10.4 or newer])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
[
#ifdef MAC_OS_X_VERSION_MAX_ALLOWED
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
; /* OK */
#else
error "OSX 10.4 or newer required";
#endif
#endif
])],
ns_osx_have_104=yes,
ns_osx_have_104=no)
AC_MSG_RESULT([$ns_osx_have_104])
if test $ns_osx_have_104 = no; then
AC_MSG_ERROR([`OSX 10.4 or newer is required']);
fi
AC_MSG_CHECKING([for OSX 10.5 or newer])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
[
#ifdef MAC_OS_X_VERSION_MAX_ALLOWED
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
; /* OK */
#else
error "OSX 10.5 not found";
#endif
#endif
])],
ns_osx_have_105=yes,
ns_osx_have_105=no)
AC_MSG_RESULT([$ns_osx_have_105])
if test $ns_osx_have_105 = yes; then
macfont_file="macfont.o"
fi
fi
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
[NSInteger i;])],
ns_have_nsinteger=yes,
ns_have_nsinteger=no)
if test $ns_have_nsinteger = yes; then
AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
fi
fi
AC_SUBST(LIBS_GNUSTEP)
MAC_OBJ=
MAC_OBJC_OBJ=
if test "${HAVE_MACGUI}" = yes; then
MAC_OBJ="mac.o macterm.o macfns.o macmenu.o macselect.o"
MAC_OBJC_OBJ="macappkit.o macfont.o"
fi
AC_SUBST(MAC_OBJ)
AC_SUBST(MAC_OBJC_OBJ)
INSTALL_ARCH_INDEP_EXTRA=install-etc
ns_self_contained=no
NS_OBJ=
NS_OBJC_OBJ=
if test "${HAVE_NS}" = yes; then
test "${window_system}" = mac && HAVE_MACGUI=no
if test "$with_toolkit_scroll_bars" = "no"; then
AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
fi
window_system=nextstep
# set up packaging dirs
if test "${EN_NS_SELF_CONTAINED}" = yes; then
ns_self_contained=yes
prefix=${ns_appresdir}
exec_prefix=${ns_appbindir}
dnl This one isn't really used, only archlibdir is.
libexecdir="\${ns_appbindir}/libexec"
archlibdir="\${ns_appbindir}/libexec"
etcdocdir="\${ns_appresdir}/etc"
etcdir="\${ns_appresdir}/etc"
dnl FIXME maybe set datarootdir instead.
dnl That would also get applications, icons, man.
infodir="\${ns_appresdir}/info"
mandir="\${ns_appresdir}/man"
lispdir="\${ns_appresdir}/lisp"
INSTALL_ARCH_INDEP_EXTRA=
fi
NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
fi
CFLAGS="$tmp_CFLAGS"
CPPFLAGS="$tmp_CPPFLAGS"
AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
AC_SUBST(ns_self_contained)
AC_SUBST(NS_OBJ)
AC_SUBST(NS_OBJC_OBJ)
HAVE_W32=no
W32_OBJ=
W32_LIBS=
EMACSRES=
CLIENTRES=
CLIENTW=
W32_RES_LINK=
EMACS_MANIFEST=
UPDATE_MANIFEST=
if test "${with_w32}" != no; then
case "${opsys}" in
cygwin)
AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
[AC_MSG_ERROR([`--with-w32' was specified, but windows.h
cannot be found.])])
;;
mingw32)
## Using --with-w32 with MinGW is a no-op, but we allow it.
;;
*)
AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
;;
esac
fi
if test "${opsys}" = "mingw32"; then
AC_MSG_CHECKING([whether Windows API headers are recent enough])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <windows.h>
#include <usp10.h>]],
[[PIMAGE_NT_HEADERS pHeader;
PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
[emacs_cv_w32api=yes
HAVE_W32=yes],
emacs_cv_w32api=no)
AC_MSG_RESULT($emacs_cv_w32api)
if test "${emacs_cv_w32api}" = "no"; then
AC_MSG_ERROR([the Windows API headers are too old to support this build.])
fi
fi
FIRSTFILE_OBJ=
NTDIR=
LIBS_ECLIENT=
LIB_WSOCK32=
NTLIB=
CM_OBJ="cm.o"
XARGS_LIMIT=
if test "${HAVE_W32}" = "yes"; then
AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
if test "$with_toolkit_scroll_bars" = "no"; then
AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
fi
AC_CHECK_TOOL(WINDRES, [windres],
[AC_MSG_ERROR([No resource compiler found.])])
W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
EMACSRES="emacs.res"
case "$canonical" in
x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
*) EMACS_MANIFEST="emacs-x86.manifest" ;;
esac
if test "${opsys}" = "cygwin"; then
W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
# Tell the linker that emacs.res is an object (which we compile from
# the rc file), not a linker script.
W32_RES_LINK="-Wl,emacs.res"
else
UPDATE_MANIFEST=update-game-score.exe.manifest
W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
W32_RES_LINK="\$(EMACSRES)"
CLIENTRES="emacsclient.res"
CLIENTW="emacsclientw\$(EXEEXT)"
FIRSTFILE_OBJ=firstfile.o
NTDIR=nt
CM_OBJ=
LIBS_ECLIENT="-lcomctl32"
LIB_WSOCK32="-lwsock32"
NTLIB="ntlib.$ac_objext"
XARGS_LIMIT="-s 10000"
fi
fi
AC_SUBST(W32_OBJ)
AC_SUBST(W32_LIBS)
AC_SUBST(EMACSRES)
AC_SUBST(EMACS_MANIFEST)
AC_SUBST(UPDATE_MANIFEST)
AC_SUBST(CLIENTRES)
AC_SUBST(CLIENTW)
AC_SUBST(W32_RES_LINK)
AC_SUBST(FIRSTFILE_OBJ)
AC_SUBST(NTDIR)
AC_SUBST(CM_OBJ)
AC_SUBST(LIBS_ECLIENT)
AC_SUBST(LIB_WSOCK32)
AC_SUBST(NTLIB)
AC_SUBST(XARGS_LIMIT)
if test "${HAVE_W32}" = "yes"; then
window_system=w32
with_xft=no
fi
## $window_system is now set to the window system we will
## ultimately use.
if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
# Too many warnings for now.
nw=
nw="$nw -Wsuggest-attribute=const"
nw="$nw -Wsuggest-attribute=noreturn"
gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
gl_WARN_ADD([-Wno-unused-variable])
gl_WARN_ADD([-Wno-unused-but-set-variable])
gl_WARN_ADD([-Wno-unused-but-set-parameter])
fi
term_header=
HAVE_X_WINDOWS=no
HAVE_X11=no
USE_X_TOOLKIT=none
case "${window_system}" in
x11 )
HAVE_X_WINDOWS=yes
HAVE_X11=yes
term_header=xterm.h
case "${with_x_toolkit}" in
athena | lucid ) USE_X_TOOLKIT=LUCID ;;
motif ) USE_X_TOOLKIT=MOTIF ;;
gtk ) with_gtk=yes
term_header=gtkutil.h
dnl Don't set this for GTK. A lot of tests below assumes Xt when
dnl USE_X_TOOLKIT is set.
USE_X_TOOLKIT=none ;;
gtk2 ) with_gtk2=yes
term_header=gtkutil.h
USE_X_TOOLKIT=none ;;
gtk3 ) with_gtk3=yes
term_header=gtkutil.h
USE_X_TOOLKIT=none ;;
no ) USE_X_TOOLKIT=none ;;
dnl If user did not say whether to use a toolkit, make this decision later:
dnl use the toolkit if we have gtk, or X11R5 or newer.
* ) USE_X_TOOLKIT=maybe ;;
esac
;;
mac )
term_header=macterm.h
;;
nextstep )
term_header=nsterm.h
;;
w32 )
term_header=w32term.h
;;
esac
if test "$window_system" = none && test "X$with_x" != "Xno"; then
AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
if test "$HAVE_XSERVER" = true ||
test -n "$DISPLAY" ||
test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
AC_MSG_ERROR([You seem to be running X, but no X development libraries
were found. You should install the relevant development files for X
and for the toolkit you want, such as Gtk+ or Motif. Also make
sure you have development files for image handling, i.e.
tiff, gif, jpeg, png and xpm.
If you are sure you want Emacs compiled without X window support, pass
--without-x
to configure.])
fi
fi
# Does the opsystem file prohibit the use of the GNU malloc?
# Assume not, until told otherwise.
GNU_MALLOC=yes
AC_CACHE_CHECK(
[whether malloc is Doug Lea style],
[emacs_cv_var_doug_lea_malloc],
[emacs_cv_var_doug_lea_malloc=no
dnl Hooks do not work with address sanitization.
if test "$emacs_cv_sanitize_address" != yes; then
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <malloc.h>
static void hook (void) {}]],
[[malloc_set_state (malloc_get_state ());
__after_morecore_hook = hook;
__malloc_initialize_hook = hook;]])],
[emacs_cv_var_doug_lea_malloc=yes])])
fi
doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
system_malloc=$emacs_cv_sanitize_address
case "$opsys" in
## darwin ld insists on the use of malloc routines in the System framework.
darwin|sol2-10) system_malloc=yes ;;
esac
GMALLOC_OBJ=
if test "${system_malloc}" = "yes"; then
AC_DEFINE([SYSTEM_MALLOC], 1,
[Define to 1 to use the system memory allocator, even if it is not
Doug Lea style.])
GNU_MALLOC=no
GNU_MALLOC_reason="
(The GNU allocators don't work with this system configuration.)"
VMLIMIT_OBJ=
else
test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
VMLIMIT_OBJ=vm-limit.o
AC_CHECK_HEADERS([sys/vlimit.h])
AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
[AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[extern char data_start[]; char ch;]],
[[return data_start < &ch;]])],
[emacs_cv_data_start=yes],
[emacs_cv_data_start=no])])
if test $emacs_cv_data_start = yes; then
AC_DEFINE([HAVE_DATA_START], 1,
[Define to 1 if data_start is the address of the start
of the main data segment.])
fi
fi
AC_SUBST(GMALLOC_OBJ)
AC_SUBST(VMLIMIT_OBJ)
if test "$doug_lea_malloc" = "yes" ; then
if test "$GNU_MALLOC" = yes ; then
GNU_MALLOC_reason="
(Using Doug Lea's new malloc from the GNU C Library.)"
fi
AC_DEFINE(DOUG_LEA_MALLOC, 1,
[Define to 1 if the system memory allocator is Doug Lea style,
with malloc hooks and malloc_set_state.])
## Use mmap directly for allocating larger buffers.
## FIXME this comes from src/s/{gnu,gnu-linux}.h:
## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
## Does the AC_FUNC_MMAP test below make this check unnecessary?
case "$opsys" in
gnu*) REL_ALLOC=no ;;
esac
fi
if test x"${REL_ALLOC}" = x; then
REL_ALLOC=${GNU_MALLOC}
fi
use_mmap_for_buffers=no
case "$opsys" in
cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
esac
AC_FUNC_MMAP
if test $use_mmap_for_buffers = yes; then
AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
REL_ALLOC=no
fi
LIBS="$LIBS_SYSTEM $LIBS"
dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
AC_CHECK_LIB(dnet, dnet_ntoa)
dnl This causes -lresolv to get used in subsequent tests,
dnl which causes failures on some systems such as HPUX 9.
dnl AC_CHECK_LIB(resolv, gethostbyname)
dnl FIXME replace main with a function we actually want from this library.
AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
dnl Check if pthreads is available.
LIB_PTHREAD=
AC_CHECK_HEADERS_ONCE(pthread.h)
if test "$ac_cv_header_pthread_h"; then
dnl gmalloc.c uses pthread_atfork, which is not available on older-style
dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
dnl testing for pthread_self if Emacs uses gmalloc.c.
if test "$GMALLOC_OBJ" = gmalloc.o; then
emacs_pthread_function=pthread_atfork
else
emacs_pthread_function=pthread_self
fi
AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
fi
if test "$HAVE_PTHREAD" = yes; then
case "${canonical}" in
*-hpux*) ;;
*) LIB_PTHREAD="-lpthread"
LIBS="$LIB_PTHREAD $LIBS" ;;
esac
AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
# Some systems optimize for single-threaded programs by default, and
# need special flags to disable these optimizations. For example, the
# definition of 'errno' in <errno.h>.
case $opsys in
sol*)
AC_DEFINE([_REENTRANT], 1,
[Define to 1 if your system requires this in multithreaded code.]);;
aix4-2)
AC_DEFINE([_THREAD_SAFE], 1,
[Define to 1 if your system requires this in multithreaded code.]);;
esac
fi
AC_SUBST([LIB_PTHREAD])
AC_CHECK_LIB(pthreads, cma_open)
## Note: when using cpp in s/aix4.2.h, this definition depended on
## HAVE_LIBPTHREADS. That was not defined earlier in configure when
## the system file was sourced. Hence the value of LIBS_SYSTEM
## added to LIBS in configure would never contain the pthreads part,
## but the value used in Makefiles might. FIXME?
##
## -lpthreads seems to be necessary for Xlib in X11R6, and should
## be harmless on older versions of X where it happens to exist.
test "$opsys" = "aix4-2" && \
test $ac_cv_lib_pthreads_cma_open = yes && \
LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
dnl Check for need for bigtoc support on IBM AIX
case ${host_os} in
aix*)
AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
case $GCC in
yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
*) gdb_cv_bigtoc=-bbigtoc ;;
esac
LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
])
;;
esac
# Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
# used for the tests that follow. We set them back to REAL_CFLAGS and
# REAL_CPPFLAGS later on.
REAL_CFLAGS="$CFLAGS"
REAL_CPPFLAGS="$CPPFLAGS"
if test "${HAVE_X11}" = "yes"; then
DEFS="$C_SWITCH_X_SITE $DEFS"
LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
LIBS="-lX11 $LIBS"
CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
# On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
# This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
# but it's more convenient here to set LD_RUN_PATH since this
# also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
export LD_RUN_PATH
fi
if test "${opsys}" = "gnu-linux"; then
AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
[[XOpenDisplay ("foo");]])],
[xgnu_linux_first_failure=no],
[xgnu_linux_first_failure=yes])
if test "${xgnu_linux_first_failure}" = "yes"; then
OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
OLD_CPPFLAGS="$CPPFLAGS"
OLD_LIBS="$LIBS"
LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
LIBS="$LIBS -b i486-linuxaout"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
[[XOpenDisplay ("foo");]])],
[xgnu_linux_second_failure=no],
[xgnu_linux_second_failure=yes])
if test "${xgnu_linux_second_failure}" = "yes"; then
# If we get the same failure with -b, there is no use adding -b.
# So take it out. This plays safe.
LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
CPPFLAGS="$OLD_CPPFLAGS"
LIBS="$OLD_LIBS"
AC_MSG_RESULT(no)
else
AC_MSG_RESULT(yes)
fi
else
AC_MSG_RESULT(no)
fi
fi
# Reportedly, some broken Solaris systems have XKBlib.h but are missing
# header files included from there.
AC_MSG_CHECKING(for Xkb)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
#include <X11/XKBlib.h>]],
[[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
emacs_xkb=yes, emacs_xkb=no)
AC_MSG_RESULT($emacs_xkb)
if test $emacs_xkb = yes; then
AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
fi
AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
XScreenNumberOfScreen)
fi
if test "${window_system}" = "x11"; then
AC_MSG_CHECKING(X11 version 6)
AC_CACHE_VAL(emacs_cv_x11_version_6,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
[[#if XlibSpecificationRelease < 6
fail;
#endif
]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
if test $emacs_cv_x11_version_6 = yes; then
AC_MSG_RESULT(6 or newer)
AC_DEFINE(HAVE_X11R6, 1,
[Define to 1 if you have the X11R6 or newer version of Xlib.])
AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
## XIM support.
case "$opsys" in
sol2-*) : ;;
*) AC_DEFINE(HAVE_X11R6_XIM, 1,
[Define if you have usable X11R6-style XIM support.])
;;
esac
else
AC_MSG_RESULT(before 6)
fi
fi
### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
HAVE_RSVG=no
if test "${HAVE_X11}" = "yes" || test "${HAVE_MACGUI}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
if test "${with_rsvg}" != "no"; then
RSVG_REQUIRED=2.11.0
RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
AC_SUBST(RSVG_CFLAGS)
AC_SUBST(RSVG_LIBS)
if test $HAVE_RSVG = yes; then
AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
CFLAGS="$CFLAGS $RSVG_CFLAGS"
# Windows loads librsvg dynamically
if test "${opsys}" = "mingw32"; then
RSVG_LIBS=
fi
LIBS="$RSVG_LIBS $LIBS"
fi
fi
fi
HAVE_IMAGEMAGICK=no
if test "${HAVE_X11}" = "yes" || test "${HAVE_MACGUI}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
if test "${with_imagemagick}" != "no"; then
## 6.3.5 is the earliest version known to work; see Bug#17339.
## 6.8.2 makes Emacs crash; see Bug#13867.
IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
AC_SUBST(IMAGEMAGICK_CFLAGS)
AC_SUBST(IMAGEMAGICK_LIBS)
if test $HAVE_IMAGEMAGICK = yes; then
AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
LIBS="$IMAGEMAGICK_LIBS $LIBS"
AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
fi
fi
fi
HAVE_GTK=no
GTK_OBJ=
gtk_term_header=$term_header
check_gtk2=no
gtk3_pkg_errors=
if test "${opsys}" != "mingw32"; then
if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
GLIB_REQUIRED=2.28
GTK_REQUIRED=3.0
GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
dnl Checks for libraries.
PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
AC_MSG_ERROR($GTK_PKG_ERRORS)
fi
if test "$pkg_check_gtk" = "yes"; then
AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
GTK_OBJ=emacsgtkfixed.o
gtk_term_header=gtkutil.h
USE_GTK_TOOLKIT="GTK3"
if test "x$ac_enable_gtk_deprecation_warnings" = x; then
AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
[Define to 1 to disable GTK+/GDK deprecation warnings.])
AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
[Define to 1 to disable Glib deprecation warnings.])
fi
else
check_gtk2=yes
gtk3_pkg_errors="$GTK_PKG_ERRORS "
fi
fi
if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
GLIB_REQUIRED=2.10
GTK_REQUIRED=2.10
GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
dnl Checks for libraries.
PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
if test "$pkg_check_gtk" = "no" &&
{ test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
then
AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
fi
test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
fi
fi
if test x"$pkg_check_gtk" = xyes; then
AC_SUBST(GTK_LIBS)
C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
CFLAGS="$CFLAGS $GTK_CFLAGS"
LIBS="$GTK_LIBS $LIBS"
dnl Try to compile a simple GTK program.
AC_MSG_CHECKING([whether GTK compiles])
GTK_COMPILES=no
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[/* Check the Gtk and Glib APIs. */
#include <gtk/gtk.h>
#include <glib-object.h>
static void
callback (GObject *go, GParamSpec *spec, gpointer user_data)
{}
]],
[[
GtkSettings *gs = 0;
/* Use G_CALLBACK to make sure function pointers can be cast to void *;
strict C prohibits this. Use gtk_main_iteration to test that the
libraries are there. */
if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
0, 0, 0, G_CALLBACK (callback), 0))
gtk_main_iteration ();
]])],
[GTK_COMPILES=yes])
AC_MSG_RESULT([$GTK_COMPILES])
if test "${GTK_COMPILES}" != "yes"; then
GTK_OBJ=
if test "$USE_X_TOOLKIT" != "maybe"; then
AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
fi
else
HAVE_GTK=yes
AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
GTK_OBJ="gtkutil.o $GTK_OBJ"
term_header=$gtk_term_header
USE_X_TOOLKIT=none
if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
:
else
AC_MSG_WARN([[Your version of Gtk+ will have problems with
closing open displays. This is no problem if you just use
one display, but if you use more than one and close one of them
Emacs may crash.]])
sleep 3
fi
fi
fi
AC_SUBST(GTK_OBJ)
if test "${HAVE_GTK}" = "yes"; then
dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
dnl a lot if #ifdef:s, say we have toolkit scrollbars.
if test "$with_toolkit_scroll_bars" != no; then
with_toolkit_scroll_bars=yes
fi
dnl Check if we have the old file selection dialog declared and
dnl in the link library. In 2.x it may be in the library,
dnl but not declared if deprecated featured has been selected out.
dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
HAVE_GTK_FILE_SELECTION=no
AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
#include <gtk/gtk.h>])
if test "$HAVE_GTK_FILE_SELECTION" = yes; then
AC_CHECK_FUNCS(gtk_file_selection_new)
fi
dnl Same as above for gtk_handle_box.
HAVE_GTK_HANDLE_BOX=no
AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
#include <gtk/gtk.h>])
if test "$HAVE_GTK_HANDLE_BOX" = yes; then
AC_CHECK_FUNCS(gtk_handle_box_new)
fi
dnl Same as above for gtk_tearoff_menu_item.
HAVE_GTK_TEAROFF_MENU_ITEM=no
AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
#include <gtk/gtk.h>])
if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
fi
dnl Check for functions introduced in 2.14 and later.
AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
gtk_dialog_get_action_area gtk_widget_get_sensitive \
gtk_widget_get_mapped gtk_adjustment_get_page_size \
gtk_orientable_set_orientation \
gtk_window_set_has_resize_grip)
term_header=gtkutil.h
fi
dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
dnl other platforms.
HAVE_DBUS=no
DBUS_OBJ=
if test "${with_dbus}" = "yes"; then
PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
if test "$HAVE_DBUS" = yes; then
LIBS="$LIBS $DBUS_LIBS"
AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
dnl dbus_type_is_valid and dbus_validate_* have been introduced in
dnl D-Bus 1.5.12.
AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
dbus_type_is_valid \
dbus_validate_bus_name \
dbus_validate_path \
dbus_validate_interface \
dbus_validate_member)
DBUS_OBJ=dbusbind.o
fi
fi
AC_SUBST(DBUS_OBJ)
dnl GSettings has been tested under GNU/Linux only.
HAVE_GSETTINGS=no
if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
if test "$HAVE_GSETTINGS" = "yes"; then
old_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
old_LIBS=$LIBS
LIBS="$LIBS $GSETTINGS_LIBS"
AC_MSG_CHECKING([whether GSettings is in gio])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[/* Check that gsettings really is present. */
#include <glib-object.h>
#include <gio/gio.h>
]],
[[
GSettings *settings;
GVariant *val = g_settings_get_value (settings, "");
]])],
[], HAVE_GSETTINGS=no)
AC_MSG_RESULT([$HAVE_GSETTINGS])
if test "$HAVE_GSETTINGS" = "yes"; then
AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
SETTINGS_LIBS="$GSETTINGS_LIBS"
fi
CFLAGS=$old_CFLAGS
LIBS=$old_LIBS
fi
fi
dnl GConf has been tested under GNU/Linux only.
dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
HAVE_GCONF=no
if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
if test "$HAVE_GCONF" = yes; then
AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
dnl Newer GConf doesn't link with g_objects, so this is not defined.
SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
fi
fi
if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
if test "$HAVE_GOBJECT" = "yes"; then
SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
fi
SAVE_CFLAGS="$CFLAGS"
SAVE_LIBS="$LIBS"
CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
LIBS="$SETTINGS_LIBS $LIBS"
CFLAGS="$SAVE_CFLAGS"
LIBS="$SAVE_LIBS"
fi
AC_SUBST(SETTINGS_CFLAGS)
AC_SUBST(SETTINGS_LIBS)
dnl SELinux is available for GNU/Linux only.
HAVE_LIBSELINUX=no
LIBSELINUX_LIBS=
if test "${with_selinux}" = "yes"; then
AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
if test "$HAVE_LIBSELINUX" = yes; then
AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
LIBSELINUX_LIBS=-lselinux
fi
fi
AC_SUBST(LIBSELINUX_LIBS)
HAVE_GNUTLS=no
HAVE_GNUTLS3=no
if test "${with_gnutls}" = "yes" ; then
PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0], HAVE_GNUTLS3=yes, HAVE_GNUTLS3=no)
if test "${HAVE_GNUTLS3}" = "yes"; then
AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
HAVE_GNUTLS="yes"
else
PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
fi
if test "${HAVE_GNUTLS}" = "yes"; then
AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
fi
# Windows loads GnuTLS dynamically
if test "${opsys}" = "mingw32"; then
LIBGNUTLS_LIBS=
fi
fi
AC_SUBST(LIBGNUTLS_LIBS)
AC_SUBST(LIBGNUTLS_CFLAGS)
NOTIFY_OBJ=
NOTIFY_SUMMARY=no
dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
dnl a particular library. This doesn't make much sense?
if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
with_file_notification=no
fi
dnl MS Windows native file monitor is available for mingw32 only.
case $with_file_notification,$opsys in
w32,* | yes,mingw32)
AC_CHECK_HEADER(windows.h)
if test "$ac_cv_header_windows_h" = yes ; then
AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
NOTIFY_OBJ=w32notify.o
NOTIFY_SUMMARY="yes (w32)"
fi ;;
esac
dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
dnl has been added in glib 2.24. It has been tested under
dnl GNU/Linux only. We take precedence over inotify, but this makes
dnl only sense when glib has been compiled with inotify support. How
dnl to check?
case $with_file_notification,$NOTIFY_OBJ in
gfile, | yes,)
PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
if test "$HAVE_GFILENOTIFY" = "yes"; then
AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
NOTIFY_OBJ=gfilenotify.o
NOTIFY_SUMMARY="yes -lgio (gfile)"
fi ;;
esac
dnl inotify is only available on GNU/Linux.
case $with_file_notification,$NOTIFY_OBJ in
inotify, | yes,)
AC_CHECK_HEADER(sys/inotify.h)
if test "$ac_cv_header_sys_inotify_h" = yes ; then
AC_CHECK_FUNC(inotify_init1)
if test "$ac_cv_func_inotify_init1" = yes; then
AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
NOTIFY_OBJ=inotify.o
NOTIFY_SUMMARY="yes -lglibc (inotify)"
fi
fi ;;
esac
case $with_file_notification,$NOTIFY_OBJ in
yes,* | no,* | *,?*) ;;
*) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
esac
if test -n "$NOTIFY_OBJ"; then
AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
fi
AC_SUBST(NOTIFY_OBJ)
AC_SUBST(GFILENOTIFY_CFLAGS)
AC_SUBST(GFILENOTIFY_LIBS)
dnl Do not put whitespace before the #include statements below.
dnl Older compilers (eg sunos4 cc) choke on it.
HAVE_XAW3D=no
LUCID_LIBW=
if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
if test "$with_xaw3d" != no; then
AC_CACHE_VAL(emacs_cv_xaw3d,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <X11/Intrinsic.h>
#include <X11/Xaw3d/Simple.h>]],
[[]])],
[AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
emacs_cv_xaw3d=no)])
else
emacs_cv_xaw3d=no
fi
if test $emacs_cv_xaw3d = yes; then
AC_MSG_CHECKING(for xaw3d)
AC_MSG_RESULT([yes; using Lucid toolkit])
USE_X_TOOLKIT=LUCID
HAVE_XAW3D=yes
LUCID_LIBW=-lXaw3d
AC_DEFINE(HAVE_XAW3D, 1,
[Define to 1 if you have the Xaw3d library (-lXaw3d).])
else
AC_MSG_CHECKING(for xaw3d)
AC_MSG_RESULT(no)
AC_MSG_CHECKING(for libXaw)
AC_CACHE_VAL(emacs_cv_xaw,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <X11/Intrinsic.h>
#include <X11/Xaw/Simple.h>]],
[[]])],
emacs_cv_xaw=yes,
emacs_cv_xaw=no)])
if test $emacs_cv_xaw = yes; then
AC_MSG_RESULT([yes; using Lucid toolkit])
USE_X_TOOLKIT=LUCID
LUCID_LIBW=-lXaw
elif test x"${USE_X_TOOLKIT}" = xLUCID; then
AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
else
AC_MSG_ERROR([No X toolkit could be found.
If you are sure you want Emacs compiled without an X toolkit, pass
--with-x-toolkit=no
to configure. Otherwise, install the development libraries for the toolkit
that you want to use (e.g. Gtk+) and re-run configure.])
fi
fi
fi
X_TOOLKIT_TYPE=$USE_X_TOOLKIT
LIBXTR6=
if test "${USE_X_TOOLKIT}" != "none"; then
AC_MSG_CHECKING(X11 toolkit version)
AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
[[#if XtSpecificationRelease < 6
fail;
#endif
]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
if test $emacs_cv_x11_toolkit_version_6 = yes; then
AC_MSG_RESULT(6 or newer)
AC_DEFINE(HAVE_X11XTR6, 1,
[Define to 1 if you have the X11R6 or newer version of Xt.])
LIBXTR6="-lSM -lICE"
case "$opsys" in
## Use libw.a along with X11R6 Xt.
unixware) LIBXTR6="$LIBXTR6 -lw" ;;
esac
else
AC_MSG_RESULT(before 6)
fi
dnl If using toolkit, check whether libXmu.a exists.
dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
OLDLIBS="$LIBS"
if test x$HAVE_X11XTR6 = xyes; then
LIBS="-lXt -lSM -lICE $LIBS"
else
LIBS="-lXt $LIBS"
fi
AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
fi
AC_SUBST(LIBXTR6)
dnl FIXME the logic here seems weird, but this is what cpp was doing.
dnl Why not just test for libxmu in the normal way?
LIBXMU=-lXmu
case $opsys in
## These systems don't supply Xmu.
hpux* | aix4-2 )
test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
;;
mingw32 )
LIBXMU=
;;
esac
AC_SUBST(LIBXMU)
# On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
if test "${HAVE_X11}" = "yes"; then
if test "${USE_X_TOOLKIT}" != "none"; then
AC_CHECK_LIB(Xext, XShapeQueryExtension)
fi
fi
LIBXP=
if test "${USE_X_TOOLKIT}" = "MOTIF"; then
# OpenMotif may be installed in such a way on some GNU/Linux systems.
if test -d /usr/include/openmotif; then
CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
emacs_cv_openmotif=yes
case "$canonical" in
x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
;;
*)
test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
esac
else
emacs_cv_openmotif=no
fi
AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
[[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
int x = 5;
#else
Motif version prior to 2.1.
#endif]])],
emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
if test $emacs_cv_motif_version_2_1 = yes; then
AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
if test x$emacs_cv_openmotif = xyes; then
REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
fi
else
AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
# We put this in CFLAGS temporarily to precede other -I options
# that might be in CFLAGS temporarily.
# We put this in CPPFLAGS where it precedes the other -I options.
OLD_CPPFLAGS=$CPPFLAGS
OLD_CFLAGS=$CFLAGS
CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
[[int x = 5;]])],
emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
if test $emacs_cv_lesstif = yes; then
# Make sure this -I option remains in CPPFLAGS after it is set
# back to REAL_CPPFLAGS.
# There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
# have those other -I options anyway. Ultimately, having this
# directory ultimately in CPPFLAGS will be enough.
REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
else
CFLAGS=$OLD_CFLAGS
CPPFLAGS=$OLD_CPPFLAGS
fi
fi
AC_CHECK_HEADER([Xm/BulletinB.h], [],
[AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
fi
dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
dnl using Motif or Xaw3d is available, and unless
dnl --with-toolkit-scroll-bars=no was specified.
AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
[Define to 1 if we should use toolkit scroll bars.])dnl
USE_TOOLKIT_SCROLL_BARS=no
if test "${with_toolkit_scroll_bars}" != "no"; then
if test "${USE_X_TOOLKIT}" != "none"; then
if test "${USE_X_TOOLKIT}" = "MOTIF"; then
AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
HAVE_XAW3D=no
USE_TOOLKIT_SCROLL_BARS=yes
elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
USE_TOOLKIT_SCROLL_BARS=yes
fi
elif test "${HAVE_GTK}" = "yes"; then
AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
USE_TOOLKIT_SCROLL_BARS=yes
elif test "${HAVE_MACGUI}" = "yes"; then
AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
USE_TOOLKIT_SCROLL_BARS=yes
elif test "${HAVE_NS}" = "yes"; then
AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
USE_TOOLKIT_SCROLL_BARS=yes
elif test "${HAVE_W32}" = "yes"; then
AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
USE_TOOLKIT_SCROLL_BARS=yes
fi
fi
dnl See if XIM is available.
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <X11/Xlib.h>
#include <X11/Xresource.h>]],
[[XIMProc callback;]])],
[HAVE_XIM=yes
AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
HAVE_XIM=no)
dnl `--with-xim' now controls only the initial value of use_xim at run time.
if test "${with_xim}" != "no"; then
AC_DEFINE(USE_XIM, 1,
[Define to 1 if we should use XIM, if it is available.])
fi
if test "${HAVE_XIM}" != "no"; then
late_CFLAGS=$CFLAGS
if test "$GCC" = yes; then
CFLAGS="$CFLAGS --pedantic-errors"
fi
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <X11/Xlib.h>
#include <X11/Xresource.h>]],
[[Display *display;
XrmDatabase db;
char *res_name;
char *res_class;
XIMProc callback;
XPointer *client_data;
#ifndef __GNUC__
/* If we're not using GCC, it's probably not XFree86, and this is
probably right, but we can't use something like --pedantic-errors. */
extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
char*, XIMProc, XPointer*);
#endif
(void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
client_data);]])],
[emacs_cv_arg6_star=yes])
AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
[Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
either XPointer or XPointer*.])dnl
if test "$emacs_cv_arg6_star" = yes; then
AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
else
AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
fi
CFLAGS=$late_CFLAGS
fi
### Start of font-backend (under any platform) section.
# (nothing here yet -- this is a placeholder)
### End of font-backend (under any platform) section.
### Start of font-backend (under X11) section.
if test "${HAVE_X11}" = "yes"; then
PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
## Use -lXft if available, unless `--with-xft=no'.
HAVE_XFT=maybe
if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
with_xft="no";
fi
if test "x${with_xft}" != "xno"; then
PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
## Because xftfont.c uses XRenderQueryExtension, we also
## need to link to -lXrender.
HAVE_XRENDER=no
AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
OLD_CPPFLAGS="$CPPFLAGS"
OLD_CFLAGS="$CFLAGS"
OLD_LIBS="$LIBS"
CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
CFLAGS="$CFLAGS $XFT_CFLAGS"
XFT_LIBS="-lXrender $XFT_LIBS"
LIBS="$XFT_LIBS $LIBS"
AC_CHECK_HEADER(X11/Xft/Xft.h,
AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
[[#include <X11/X.h>]])
if test "${HAVE_XFT}" = "yes"; then
AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
AC_SUBST(XFT_LIBS)
C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
else
CPPFLAGS="$OLD_CPPFLAGS"
CFLAGS="$OLD_CFLAGS"
LIBS="$OLD_LIBS"
fi # "${HAVE_XFT}" = "yes"
fi # "$HAVE_XFT" != no
fi # "x${with_xft}" != "xno"
## We used to allow building with FreeType and without Xft.
## However, the ftx font backend driver is not in good shape.
if test "$HAVE_XFT" != "yes"; then
dnl For the "Does Emacs use" message at the end.
HAVE_XFT=no
HAVE_FREETYPE=no
else
dnl Strict linkers fail with
dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
dnl if -lfreetype is not specified.
dnl The following is needed to set FREETYPE_LIBS.
PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
HAVE_FREETYPE=no)
test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
fi
HAVE_LIBOTF=no
if test "${HAVE_FREETYPE}" = "yes"; then
AC_DEFINE(HAVE_FREETYPE, 1,
[Define to 1 if using the freetype and fontconfig libraries.])
if test "${with_libotf}" != "no"; then
PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
HAVE_LIBOTF=no)
if test "$HAVE_LIBOTF" = "yes"; then
AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
HAVE_OTF_GET_VARIATION_GLYPHS=yes,
HAVE_OTF_GET_VARIATION_GLYPHS=no)
if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
[Define to 1 if libotf has OTF_get_variation_glyphs.])
fi
fi
fi
dnl FIXME should there be an error if HAVE_FREETYPE != yes?
dnl Does the new font backend require it, or can it work without it?
fi
HAVE_M17N_FLT=no
if test "${HAVE_LIBOTF}" = yes; then
if test "${with_m17n_flt}" != "no"; then
PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
if test "$HAVE_M17N_FLT" = "yes"; then
AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
fi
fi
fi
else
HAVE_XFT=no
HAVE_FREETYPE=no
HAVE_LIBOTF=no
HAVE_M17N_FLT=no
fi
### End of font-backend (under X11) section.
AC_SUBST(FREETYPE_CFLAGS)
AC_SUBST(FREETYPE_LIBS)
AC_SUBST(FONTCONFIG_CFLAGS)
AC_SUBST(FONTCONFIG_LIBS)
AC_SUBST(LIBOTF_CFLAGS)
AC_SUBST(LIBOTF_LIBS)
AC_SUBST(M17N_FLT_CFLAGS)
AC_SUBST(M17N_FLT_LIBS)
### Use -lXpm if available, unless `--with-xpm=no'.
### mingw32 doesn't use -lXpm, since it loads the library dynamically.
### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
### LDFLAGS) accordingly.
HAVE_XPM=no
LIBXPM=
if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
if test "${with_xpm}" != "no"; then
SAVE_CPPFLAGS="$CPPFLAGS"
SAVE_LDFLAGS="$LDFLAGS"
CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
LDFLAGS="$LDFLAGS -L/usr/lib/noX"
AC_CHECK_HEADER(X11/xpm.h,
[AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
if test "${HAVE_XPM}" = "yes"; then
AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
AC_EGREP_CPP(no_return_alloc_pixels,
[#include "X11/xpm.h"
#ifndef XpmReturnAllocPixels
no_return_alloc_pixels
#endif
], HAVE_XPM=no, HAVE_XPM=yes)
if test "${HAVE_XPM}" = "yes"; then
REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
CPPFLAGS="$SAVE_CPPFLAGS"
LDFLAGS="$SAVE_LDFLAGS"
fi
fi
fi
if test "${HAVE_XPM}" = "yes"; then
AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
LIBXPM=-lXpm
fi
fi
if test "${HAVE_X11}" = "yes"; then
dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
if test "${with_xpm}" != "no"; then
AC_CHECK_HEADER(X11/xpm.h,
[AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
if test "${HAVE_XPM}" = "yes"; then
AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
AC_EGREP_CPP(no_return_alloc_pixels,
[#include "X11/xpm.h"
#ifndef XpmReturnAllocPixels
no_return_alloc_pixels
#endif
], HAVE_XPM=no, HAVE_XPM=yes)
if test "${HAVE_XPM}" = "yes"; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
fi
fi
if test "${HAVE_XPM}" = "yes"; then
AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
LIBXPM=-lXpm
elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
LIBXPM=-lXpm
fi
fi
### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
### slightly different requirements wrt image libraries (it doesn't
### use -lXpm because it loads the xpm shared library dynamically at
### run time).
if test "${opsys}" = "mingw32"; then
if test "${with_xpm}" != "no"; then
AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
#define FOR_MSW 1])
fi
if test "${HAVE_XPM}" = "yes"; then
AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
fi
fi
AC_SUBST(LIBXPM)
### Use -ljpeg if available, unless `--with-jpeg=no'.
### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
HAVE_JPEG=no
LIBJPEG=
if test "${opsys}" = "mingw32"; then
if test "${with_jpeg}" != "no"; then
dnl Checking for jpeglib.h can lose because of a redefinition of
dnl HAVE_STDLIB_H.
AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
fi
AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
if test "${HAVE_JPEG}" = "yes"; then
AC_DEFINE(HAVE_JPEG)
AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
[#include <jpeglib.h>
version=JPEG_LIB_VERSION
],
[AC_DEFINE(HAVE_JPEG)],
[AC_MSG_WARN([libjpeg found, but not version 6b or later])
HAVE_JPEG=no])
fi
elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
if test "${with_jpeg}" != "no"; then
dnl Checking for jpeglib.h can lose because of a redefinition of
dnl HAVE_STDLIB_H.
AC_CHECK_HEADER(jerror.h,
[AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
fi
AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
if test "${HAVE_JPEG}" = "yes"; then
AC_DEFINE(HAVE_JPEG)
AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
[#include <jpeglib.h>
version=JPEG_LIB_VERSION
],
[AC_DEFINE(HAVE_JPEG)],
[AC_MSG_WARN([libjpeg found, but not version 6b or later])
HAVE_JPEG=no])
fi
if test "${HAVE_JPEG}" = "yes"; then
LIBJPEG=-ljpeg
fi
fi
AC_SUBST(LIBJPEG)
### Use -lpng if available, unless `--with-png=no'.
### mingw32 doesn't use -lpng, since it loads the library dynamically.
HAVE_PNG=no
LIBPNG=
if test "${opsys}" = "mingw32"; then
if test "${with_png}" != "no"; then
AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
fi
if test "${HAVE_PNG}" = "yes"; then
AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
AC_CHECK_DECL(png_longjmp,
[],
[AC_DEFINE(PNG_DEPSTRUCT, [],
[Define to empty to suppress deprecation warnings when building
with --enable-gcc-warnings and with libpng versions before 1.5,
which lack png_longjmp.])],
[[#ifdef HAVE_LIBPNG_PNG_H
# include <libpng/png.h>
#else
# include <png.h>
#endif
]])
fi
elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
if test "${with_png}" != "no"; then
# Debian unstable as of July 2003 has multiple libpngs, and puts png.h
# in /usr/include/libpng.
AC_CHECK_HEADERS(png.h libpng/png.h, break)
if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
fi
fi
if test "${HAVE_PNG}" = "yes"; then
AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library.])
dnl Some systems, eg NetBSD 6, only provide eg "libpng16", not "libpng".
lpng=`libpng-config --libs 2> /dev/null`
case $lpng in
-l*) : ;;
*) lpng="-lpng" ;;
esac
LIBPNG="$lpng -lz -lm"
AC_CHECK_DECL(png_longjmp,
[],
[AC_DEFINE(PNG_DEPSTRUCT, [],
[Define to empty to suppress deprecation warnings when building
with --enable-gcc-warnings and with libpng versions before 1.5,
which lack png_longjmp.])],
[[#ifdef HAVE_LIBPNG_PNG_H
# include <libpng/png.h>
#else
# include <png.h>
#endif
]])
fi
fi
AC_SUBST(LIBPNG)
HAVE_ZLIB=no
LIBZ=
if test "${with_zlib}" != "no"; then
OLIBS=$LIBS
AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
LIBS=$OLIBS
case $ac_cv_search_inflateEnd in
-*) LIBZ=$ac_cv_search_inflateEnd ;;
esac
fi
if test "${HAVE_ZLIB}" = "yes"; then
AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
### mingw32 doesn't use -lz, since it loads the library dynamically.
if test "${opsys}" = "mingw32"; then
LIBZ=
fi
fi
AC_SUBST(LIBZ)
### Use -ltiff if available, unless `--with-tiff=no'.
### mingw32 doesn't use -ltiff, since it loads the library dynamically.
HAVE_TIFF=no
LIBTIFF=
if test "${opsys}" = "mingw32"; then
if test "${with_tiff}" != "no"; then
AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
fi
if test "${HAVE_TIFF}" = "yes"; then
AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
fi
elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
if test "${with_tiff}" != "no"; then
AC_CHECK_HEADER(tiffio.h,
[tifflibs="-lz -lm"
# At least one tiff package requires the jpeg library.
if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
fi
if test "${HAVE_TIFF}" = "yes"; then
AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
dnl FIXME -lz -lm, as per libpng?
LIBTIFF=-ltiff
fi
fi
AC_SUBST(LIBTIFF)
### Use -lgif or -lungif if available, unless `--with-gif=no'.
### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
HAVE_GIF=no
LIBGIF=
if test "${opsys}" = "mingw32"; then
if test "${with_gif}" != "no"; then
AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
fi
if test "${HAVE_GIF}" = "yes"; then
AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
fi
elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
|| test "${HAVE_W32}" = "yes"; then
AC_CHECK_HEADER(gif_lib.h,
# EGifPutExtensionLast only exists from version libungif-4.1.0b1.
# Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
[AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
[AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
if test "$HAVE_GIF" = yes; then
LIBGIF=-lgif
elif test "$HAVE_GIF" = maybe; then
# If gif_lib.h but no libgif, try libungif.
AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
test "$HAVE_GIF" = yes && LIBGIF=-lungif
fi
if test "${HAVE_GIF}" = "yes"; then
AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
fi
fi
AC_SUBST(LIBGIF)
dnl Check for required libraries.
if test "${HAVE_X11}" = "yes"; then
MISSING=""
WITH_NO=""
test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
MISSING="libXpm" && WITH_NO="--with-xpm=no"
test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
if test "X${MISSING}" != X; then
AC_MSG_ERROR([The following required libraries were not found:
$MISSING
Maybe some development libraries/packages are missing?
If you don't want to link with them give
$WITH_NO
as options to configure])
fi
fi
### Use -lgpm if available, unless `--with-gpm=no'.
HAVE_GPM=no
LIBGPM=
if test "${with_gpm}" != "no"; then
AC_CHECK_HEADER(gpm.h,
[AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
if test "${HAVE_GPM}" = "yes"; then
AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
LIBGPM=-lgpm
fi
fi
AC_SUBST(LIBGPM)
dnl Check for malloc/malloc.h on darwin
AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
MAC_CFLAGS=
### Use Mac OS X GUI.
if test "${HAVE_MACGUI}" = "yes"; then
AC_DEFINE(HAVE_MACGUI, 1, [Define to 1 if you are using GUI on Mac OS X.])
AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
AC_CHECK_HEADERS(AvailabilityMacros.h)
MAC_CFLAGS="-fconstant-cfstrings"
## Specify the install directory
mac_appdir=
if test "${mac_appdir_x}" != ""; then
case ${mac_appdir_x} in
y | ye | yes) mac_appdir=/Applications ;;
* ) mac_appdir=${mac_appdir_x} ;;
esac
fi
# We also have mouse menus.
HAVE_MENUS=yes
# Tell src/Makefile.in to create files in the Mac OS X application
# bundle mac/Emacs.app.
OTHER_FILES=macosx-app
fi
GNUSTEP_CFLAGS=
### Use NeXTstep API to implement GUI.
if test "${HAVE_NS}" = "yes"; then
AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
if test "${NS_IMPL_COCOA}" = "yes"; then
AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
fi
if test "${NS_IMPL_GNUSTEP}" = "yes"; then
AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
# See also .m.o rule in Makefile.in */
# FIXME: are all these flags really needed? Document here why. */
GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
## Extra CFLAGS applied to src/*.m files.
GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
fi
OTHER_FILES=ns-app
fi
### Use session management (-lSM -lICE) if available
HAVE_X_SM=no
LIBXSM=
if test "${HAVE_X11}" = "yes"; then
AC_CHECK_HEADER(X11/SM/SMlib.h,
[AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
if test "${HAVE_X_SM}" = "yes"; then
AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
LIBXSM="-lSM -lICE"
case "$LIBS" in
*-lSM*) ;;
*) LIBS="$LIBXSM $LIBS" ;;
esac
fi
fi
AC_SUBST(LIBXSM)
### Use XRandr (-lXrandr) if available
HAVE_XRANDR=no
if test "${HAVE_X11}" = "yes"; then
XRANDR_REQUIRED=1.2.2
XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
if test $HAVE_XRANDR = no; then
# Test old way in case pkg-config doesn't have it (older machines).
AC_CHECK_HEADER(X11/extensions/Xrandr.h,
[AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
if test $HAVE_XRANDR = yes; then
XRANDR_LIBS=-lXrandr
AC_SUBST(XRANDR_LIBS)
fi
fi
if test $HAVE_XRANDR = yes; then
SAVE_CFLAGS="$CFLAGS"
SAVE_LIBS="$LIBS"
CFLAGS="$XRANDR_CFLAGS $CFLAGS"
LIBS="$XRANDR_LIBS $LIBS"
AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
CFLAGS="$SAVE_CFLAGS"
LIBS="$SAVE_LIBS"
AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
fi
fi
### Use Xinerama (-lXinerama) if available
HAVE_XINERAMA=no
if test "${HAVE_X11}" = "yes"; then
XINERAMA_REQUIRED=1.0.2
XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
HAVE_XINERAMA=no)
if test $HAVE_XINERAMA = no; then
# Test old way in case pkg-config doesn't have it (older machines).
AC_CHECK_HEADER(X11/extensions/Xinerama.h,
[AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
if test $HAVE_XINERAMA = yes; then
XINERAMA_LIBS=-lXinerama
AC_SUBST(XINERAMA_LIBS)
fi
fi
if test $HAVE_XINERAMA = yes; then
AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
fi
fi
### Use libxml (-lxml2) if available
### mingw32 doesn't use -lxml2, since it loads the library dynamically.
HAVE_LIBXML2=no
if test "${with_xml2}" != "no"; then
### I'm not sure what the version number should be, so I just guessed.
PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
# Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
SAVE_CPPFLAGS="$CPPFLAGS"
if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
case $xcsdkdir in
*[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
xcsdkdir="" ;;
esac
fi
CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
AC_CHECK_HEADER(libxml/HTMLparser.h,
[AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
[#include <libxml/HTMLparser.h>])])
CPPFLAGS="$SAVE_CPPFLAGS"
if test "${HAVE_LIBXML2}" = "yes"; then
LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
LIBXML2_LIBS="-lxml2"
fi
fi
if test "${HAVE_LIBXML2}" = "yes"; then
if test "${opsys}" != "mingw32"; then
LIBS="$LIBXML2_LIBS $LIBS"
AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
else
LIBXML2_LIBS=""
fi
if test "${HAVE_LIBXML2}" = "yes"; then
AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
else
LIBXML2_LIBS=""
LIBXML2_CFLAGS=""
fi
fi
fi
AC_SUBST(LIBXML2_LIBS)
AC_SUBST(LIBXML2_CFLAGS)
# If netdb.h doesn't declare h_errno, we must declare it by hand.
# On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
if test "${opsys}" = "mingw32"; then
emacs_cv_netdb_declares_h_errno=yes
fi
AC_CACHE_CHECK(whether netdb declares h_errno,
emacs_cv_netdb_declares_h_errno,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
[[return h_errno;]])],
emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
if test $emacs_cv_netdb_declares_h_errno = yes; then
AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
fi
# sqrt and other floating-point functions such as fmod and frexp
# are found in -lm on most systems, but mingw32 doesn't use -lm.
if test "${opsys}" != "mingw32"; then
AC_CHECK_LIB(m, sqrt)
fi
# Check for mail-locking functions in a "mail" library. Probably this should
# have the same check as for liblockfile below.
AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
if test $have_mail = yes; then
LIBS_MAIL=-lmail
LIBS="$LIBS_MAIL $LIBS"
AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
else
LIBS_MAIL=
fi
dnl Debian, at least:
AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
if test $have_lockfile = yes; then
LIBS_MAIL=-llockfile
LIBS="$LIBS_MAIL $LIBS"
AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
else
# If we have the shared liblockfile, assume we must use it for mail
# locking (e.g. Debian). If we couldn't link against liblockfile
# (no liblockfile.a installed), ensure that we don't need to.
dnl This works for files generally, not just executables.
dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
/usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
if test $ac_cv_prog_liblockfile = yes; then
AC_MSG_ERROR([Shared liblockfile found but can't link against it.
This probably means that movemail could lose mail.
There may be a `development' package to install containing liblockfile.])
fi
fi
AC_CHECK_HEADERS_ONCE(maillock.h)
AC_SUBST(LIBS_MAIL)
## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
## interlock access to the mail spool. The alternative is a lock file named
## /usr/spool/mail/$USER.lock.
mail_lock=no
case "$opsys" in
aix4-2) mail_lock="lockf" ;;
gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
## On GNU/Linux systems, both methods are used by various mail programs.
## I assume most people are using newer mailers that have heard of flock.
## Change this if you need to.
## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
## configure gets the right answers, and that means *NOT* using flock.
## Using flock is guaranteed to be the wrong thing. See Debian Policy
## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
## Debian maintainer hasn't provided a clean fix for Emacs.
## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
## HAVE_MAILLOCK_H are defined, so the following appears to be the
## correct logic. -- fx
## We must check for HAVE_LIBLOCKFILE too, as movemail does.
## liblockfile is a Free Software replacement for libmail, used on
## Debian systems and elsewhere. -rfr.
gnu-*)
mail_lock="flock"
if test $have_mail = yes || test $have_lockfile = yes; then
test $ac_cv_header_maillock_h = yes && mail_lock=no
fi
;;
mingw32)
mail_lock="none-needed" ;;
esac
BLESSMAIL_TARGET=
case "$mail_lock" in
flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
none-needed) ;;
*) BLESSMAIL_TARGET="need-blessmail" ;;
esac
AC_SUBST(BLESSMAIL_TARGET)
AC_CHECK_FUNCS(accept4 fchdir gethostname \
getrusage get_current_dir_name \
lrand48 \
select getpagesize setlocale \
getrlimit setrlimit shutdown getaddrinfo \
strsignal setitimer \
sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
gai_strerror getline getdelim sync \
getpwent endpwent getgrent endgrent \
touchlock \
cfmakeraw cfsetspeed copysign __executable_start log2)
dnl No need to check for aligned_alloc and posix_memalign if using
dnl gmalloc.o, as it supplies them. Don't use these functions on
dnl Darwin as they are incompatible with unexmacosx.c.
if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
fi
## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
## has a broken `rint' in some library versions including math library
## version number A.09.05.
## You can fix the math library by installing patch number PHSS_4630.
## But we can fix it more reliably for Emacs by just not using rint.
## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
case $opsys in
hpux*) : ;;
*) AC_CHECK_FUNCS(random rint) ;;
esac
dnl Cannot use AC_CHECK_FUNCS
AC_CACHE_CHECK([for __builtin_unwind_init],
emacs_cv_func___builtin_unwind_init,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
emacs_cv_func___builtin_unwind_init=yes,
emacs_cv_func___builtin_unwind_init=no)])
if test $emacs_cv_func___builtin_unwind_init = yes; then
AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
[Define to 1 if you have the `__builtin_unwind_init' function.])
fi
AC_CHECK_HEADERS_ONCE(sys/un.h)
AC_FUNC_FSEEKO
# UNIX98 PTYs.
AC_CHECK_FUNCS(grantpt)
# PTY-related GNU extensions.
AC_CHECK_FUNCS(getpt posix_openpt)
# Check this now, so that we will NOT find the above functions in ncurses.
# That is because we have not set up to link ncurses in lib-src.
# It's better to believe a function is not available
# than to expect to find it in ncurses.
# Also we need tputs and friends to be able to build at all.
AC_MSG_CHECKING([for library containing tputs])
# Run a test program that contains a call to tputs, a call that is
# never executed. This tests whether a pre-'main' dynamic linker
# works with the library. It's too much trouble to actually call
# tputs in the test program, due to portability hassles. When
# cross-compiling, assume the test program will run if it links.
AC_DEFUN([tputs_link_source], [
AC_LANG_SOURCE(
[[extern void tputs (const char *, int, int (*)(int));
int main (int argc, char **argv)
{
if (argc == 10000)
tputs (argv[0], 0, 0);
return 0;
}]])
])
if test "${opsys}" = "mingw32"; then
msg='none required'
else
# Maybe curses should be tried earlier?
# See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
for tputs_library in '' tinfo ncurses terminfo termcap curses; do
OLIBS=$LIBS
if test -z "$tputs_library"; then
LIBS_TERMCAP=
msg='none required'
else
LIBS_TERMCAP=-l$tputs_library
msg=$LIBS_TERMCAP
LIBS="$LIBS_TERMCAP $LIBS"
fi
AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
[AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
LIBS=$OLIBS
if test "X$msg" != Xno; then
break
fi
done
fi
AC_MSG_RESULT([$msg])
if test "X$msg" = Xno; then
AC_MSG_ERROR([The required function `tputs' was not found in any library.
The following libraries were tried (in order):
libtinfo, libncurses, libterminfo, libtermcap, libcurses
Please try installing whichever of these libraries is most appropriate
for your system, together with its header files.
For example, a libncurses-dev(el) or similar package.])
fi
## Use termcap instead of terminfo?
## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
TERMINFO=yes
## FIXME? In the cases below where we unconditionally set
## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
## if that was found above to have tputs.
## Should we use the gnu* logic everywhere?
case "$opsys" in
## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
## The ncurses library has been moved out of the System framework in
## Mac OS X 10.2. So if configure detects it, set the command-line
## option to use it.
darwin) LIBS_TERMCAP="-lncurses" ;;
gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
freebsd)
AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
[[#if __FreeBSD_version < 400000
fail;
#endif
]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
if test $emacs_cv_freebsd_terminfo = yes; then
LIBS_TERMCAP="-lncurses"
else
TERMINFO=no
LIBS_TERMCAP="-ltermcap"
fi
;;
mingw32)
TERMINFO=no
LIBS_TERMCAP=
;;
netbsd)
if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
TERMINFO=no
LIBS_TERMCAP="-ltermcap"
fi
;;
openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
## hpux: Make sure we get select from libc rather than from libcurses
## because libcurses on HPUX 10.10 has a broken version of select.
## We used to use -lc -lcurses, but this may be cleaner.
## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
# set that way, now it uses the default). Isn't this a contradiction?
hpux*) LIBS_TERMCAP="-ltermcap" ;;
esac
TERMCAP_OBJ=tparam.o
if test $TERMINFO = yes; then
AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
TERMCAP_OBJ=terminfo.o
fi
if test "X$LIBS_TERMCAP" = "X-lncurses"; then
AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
fi
AC_SUBST(LIBS_TERMCAP)
AC_SUBST(TERMCAP_OBJ)
# Do we have res_init, for detecting changes in /etc/resolv.conf?
# On Darwin, res_init appears not to be useful: see bug#562 and
# http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
resolv=no
if test $opsys != darwin; then
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
#include <arpa/nameser.h>
#include <resolv.h>]],
[[return res_init();]])],
have_res_init=yes, have_res_init=no)
if test "$have_res_init" = no; then
OLIBS="$LIBS"
LIBS="$LIBS -lresolv"
AC_MSG_CHECKING(for res_init with -lresolv)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
#include <arpa/nameser.h>
#include <resolv.h>]],
[[return res_init();]])],
have_res_init=yes, have_res_init=no)
AC_MSG_RESULT($have_res_init)
if test "$have_res_init" = yes ; then
resolv=yes
fi
LIBS="$OLIBS"
fi
if test "$have_res_init" = yes; then
AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
fi
fi dnl !darwin
# Do we need the Hesiod library to provide the support routines?
dnl FIXME? Should we be skipping this on Darwin too?
LIBHESIOD=
if test "$with_hesiod" != no ; then
# Don't set $LIBS here -- see comments above. FIXME which comments?
AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
[AC_CHECK_LIB(resolv, res_send, resolv=yes,
[AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
if test "$resolv" = yes ; then
RESOLVLIB=-lresolv
else
RESOLVLIB=
fi
AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
hesiod=yes, :, $RESOLVLIB)])
if test x"$hesiod" = xyes; then
LIBHESIOD=-lhesiod
fi
fi
AC_SUBST(LIBHESIOD)
# Do we need libresolv (due to res_init or Hesiod)?
if test "$resolv" = yes && test $opsys != darwin; then
LIBRESOLV=-lresolv
else
LIBRESOLV=
fi
AC_SUBST(LIBRESOLV)
# These tell us which Kerberos-related libraries to use.
COM_ERRLIB=
CRYPTOLIB=
KRB5LIB=
DESLIB=
KRB4LIB=
if test "${with_kerberos}" != no; then
AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
if test $have_com_err = yes; then
COM_ERRLIB=-lcom_err
LIBS="$COM_ERRLIB $LIBS"
fi
AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
if test $have_crypto = yes; then
CRYPTOLIB=-lcrypto
LIBS="$CRYPTOLIB $LIBS"
fi
AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
if test $have_k5crypto = yes; then
CRYPTOLIB=-lk5crypto
LIBS="$CRYPTOLIB $LIBS"
fi
AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
if test $have_krb5=yes; then
KRB5LIB=-lkrb5
LIBS="$KRB5LIB $LIBS"
fi
dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
if test "${with_kerberos5}" = no; then
AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
if test $have_des425 = yes; then
DESLIB=-ldes425
LIBS="$DESLIB $LIBS"
else
AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
if test $have_des = yes; then
DESLIB=-ldes
LIBS="$DESLIB $LIBS"
fi
fi
AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
if test $have_krb4 = yes; then
KRB4LIB=-lkrb4
LIBS="$KRB4LIB $LIBS"
else
AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
if test $have_krb = yes; then
KRB4LIB=-lkrb
LIBS="$KRB4LIB $LIBS"
fi
fi
fi
if test "${with_kerberos5}" != no; then
AC_CHECK_HEADERS(krb5.h,
[AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
[#include <krb5.h>])])
else
AC_CHECK_HEADERS(krb.h,,
[AC_CHECK_HEADERS(kerberosIV/krb.h,,
[AC_CHECK_HEADERS(kerberos/krb.h)])])
fi
AC_CHECK_HEADERS(com_err.h)
fi
AC_SUBST(COM_ERRLIB)
AC_SUBST(CRYPTOLIB)
AC_SUBST(KRB5LIB)
AC_SUBST(DESLIB)
AC_SUBST(KRB4LIB)
AC_CHECK_HEADERS(valgrind/valgrind.h)
AC_CHECK_FUNCS_ONCE(tzset)
AC_MSG_CHECKING(whether localtime caches TZ)
AC_CACHE_VAL(emacs_cv_localtime_cache,
[if test x$ac_cv_func_tzset = xyes; then
AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
char TZ_GMT0[] = "TZ=GMT0";
char TZ_PST8[] = "TZ=PST8";
main()
{
time_t now = time ((time_t *) 0);
int hour_GMT0, hour_unset;
if (putenv (TZ_GMT0) != 0)
exit (1);
hour_GMT0 = localtime (&now)->tm_hour;
unsetenv("TZ");
hour_unset = localtime (&now)->tm_hour;
if (putenv (TZ_PST8) != 0)
exit (1);
if (localtime (&now)->tm_hour == hour_GMT0)
exit (1);
unsetenv("TZ");
if (localtime (&now)->tm_hour != hour_unset)
exit (1);
exit (0);
}]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
[# If we have tzset, assume the worst when cross-compiling.
emacs_cv_localtime_cache=yes])
else
# If we lack tzset, report that localtime does not cache TZ,
# since we can't invalidate the cache if we don't have tzset.
emacs_cv_localtime_cache=no
fi])dnl
AC_MSG_RESULT($emacs_cv_localtime_cache)
if test $emacs_cv_localtime_cache = yes; then
AC_DEFINE(LOCALTIME_CACHE, 1,
[Define to 1 if localtime caches TZ.])
fi
ok_so_far=yes
AC_CHECK_FUNC(socket, , ok_so_far=no)
if test $ok_so_far = yes; then
AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
fi
if test $ok_so_far = yes; then
AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
fi
if test $ok_so_far = yes; then
dnl Fixme: Not used. Should this be HAVE_SOCKETS?
AC_DEFINE(HAVE_INET_SOCKETS, 1,
[Define to 1 if you have inet sockets.])
fi
dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
dnl This can be removed once we assume Autoconf 2.70.
case $canonical in
*-solaris2.4 | *-solaris2.4.*)
dnl Disable the Autoconf-generated vfork test.
: ${ac_cv_func_vfork_works=no};;
esac
AC_FUNC_FORK
AC_CHECK_FUNCS(snprintf)
dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
dnl Emacs uses.
XGSELOBJ=
OLDCFLAGS="$CFLAGS"
OLDLIBS="$LIBS"
CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
LIBS="$LIBS $GFILENOTIFY_LIBS"
AC_MSG_CHECKING([whether GLib is linked in])
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[#include <glib.h>
]],
[[g_print ("Hello world");]])],
[links_glib=yes],
[links_glib=no])
AC_MSG_RESULT([$links_glib])
if test "${links_glib}" = "yes"; then
AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
if test "$HAVE_NS" = no;then
XGSELOBJ=xgselect.o
fi
fi
CFLAGS="$OLDCFLAGS"
LIBS="$OLDLIBS"
AC_SUBST(XGSELOBJ)
dnl Adapted from Haible's version.
AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
[[char* cs = nl_langinfo(CODESET);]])],
emacs_cv_langinfo_codeset=yes,
emacs_cv_langinfo_codeset=no)
])
if test $emacs_cv_langinfo_codeset = yes; then
AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
[Define if you have <langinfo.h> and nl_langinfo(CODESET).])
fi
AC_TYPE_MBSTATE_T
AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
if test "$emacs_cv_c_restrict_arr" = yes; then
AC_DEFINE(__restrict_arr, __restrict,
[Define to compiler's equivalent of C99 restrict keyword in array
declarations. Define as empty for no equivalent.])
fi
dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
dnl how the tty code is related to POSIX and/or other versions of termios.
dnl The following looks like a useful start.
dnl
dnl AC_SYS_POSIX_TERMIOS
dnl if test $ac_cv_sys_posix_termios = yes; then
dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
dnl and macros for terminal control.])
dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
dnl fi
dnl Turned on June 1996 supposing nobody will mind it.
dnl MinGW emulates passwd database, so this feature doesn't make sense there.
if test "${opsys}" != "mingw32"; then
AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
in the full name stands for the login id.])
fi
dnl Every platform that uses configure supports this.
dnl There is a create-lockfiles option you can
dnl customize if you do not want the lock files to be written.
dnl So it is not clear that this #define still needs to exist.
AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
so that Emacs can tell instantly when you try to modify a file that
someone else has modified in his/her Emacs.])
dnl Everybody supports this, except MS.
dnl Seems like the kind of thing we should be testing for, though.
## Note: PTYs are broken on darwin <6. Use at your own risk.
if test "${opsys}" != "mingw32"; then
AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
fi
dnl Everybody supports this, except MS-DOS.
dnl Seems like the kind of thing we should be testing for, though.
dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4.2-compatible sockets.])
AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
a null file, or a data sink.])
if test "${opsys}" = "mingw32"; then
AC_DEFINE(NULL_DEVICE, ["NUL:"])
else
AC_DEFINE(NULL_DEVICE, ["/dev/null"])
fi
if test "${opsys}" = "mingw32"; then
SEPCHAR=';'
else
SEPCHAR=':'
fi
AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
dnl This is for MinGW, and is used in test/automated/Makefile.in.
dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
dnl decides that a command-line argument to be passed to a MinGW program
dnl is a PATH-style list of directories. But that heuristics plays it
dnl safe, and only does the replacement when it is _absolutely_ sure it
dnl sees a colon-separated list of file names; e.g. ":." is left alone,
dnl which breaks in-tree builds. So we do this manually instead.
dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
dnl be computed as ':' in MSYS Bash.
AC_SUBST(SEPCHAR)
dnl Everybody supports this, except MS-DOS.
AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
AC_DEFINE(DIRECTORY_SEP, ['/'],
[Character that separates directories in a file name.])
if test "${opsys}" = "mingw32"; then
AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
[Returns true if character is a device separator.])
AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
[Returns true if character is a directory separator.])
AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
[Returns true if character is any form of separator.])
else
AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
[Returns true if character is a device separator.])
AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
[Returns true if character is a directory separator.])
AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
[Returns true if character is any form of separator.])
fi
AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
case $opsys in
aix4-2)
dnl Unfortunately without libXmu we cannot support EditRes.
if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
AC_DEFINE(NO_EDITRES, 1)
fi
;;
hpux*)
dnl Assar Westerlund <assar@sics.se> says this is necessary for
dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
AC_DEFINE(NO_EDITRES, 1)
;;
esac
case $opsys in
irix6-5 | sol2* | unixware )
dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
dnl instead, there's a system variable _sys_nsig. Unfortunately, we
dnl need the constant to dimension an array. So wire in the appropriate
dnl value here.
AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
;;
esac
emacs_broken_SIGIO=no
case $opsys in
dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
hpux* | irix6-5 | openbsd | sol2* | unixware )
emacs_broken_SIGIO=yes
;;
aix4-2)
dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
dnl the way this system works, libc functions that return malloced
dnl memory use the libc malloc implementation. Calling xfree or
dnl xrealloc on the results of such functions results in a crash.
dnl
dnl One solution for this could be to define SYSTEM_MALLOC in configure,
dnl but that does not currently work on this system.
dnl
dnl It is possible to completely override the malloc implementation on
dnl AIX, but that involves putting the malloc functions in a shared
dnl library and setting the MALLOCTYPE environment variable to point to
dnl that shared library.
dnl
dnl Emacs currently calls xrealloc on the results of get_current_dir name,
dnl to avoid a crash just use the Emacs implementation for that function.
dnl
dnl FIXME We could change the AC_CHECK_FUNCS call near the start
dnl of this file, so that we do not check for get_current_dir_name
dnl on AIX. But that might be fragile if something else ends
dnl up testing for get_current_dir_name as a dependency.
AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
get_current_dir_name should not be used.])
;;
freebsd)
dnl Circumvent a bug in FreeBSD. In the following sequence of
dnl writes/reads on a PTY, read(2) returns bogus data:
dnl
dnl write(2) 1022 bytes
dnl write(2) 954 bytes, get EAGAIN
dnl read(2) 1024 bytes in process_read_output
dnl read(2) 11 bytes in process_read_output
dnl
dnl That is, read(2) returns more bytes than have ever been written
dnl successfully. The 1033 bytes read are the 1022 bytes written
dnl successfully after processing (for example with CRs added if the
dnl terminal is set up that way which it is here). The same bytes will
dnl be seen again in a later read(2), without the CRs.
AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
work around an issue when reading from a PTY.])
;;
esac
case $opsys in
gnu-* | sol2-10 )
dnl FIXME Can't we test if this exists (eg /proc/$$)?
AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
;;
esac
case $opsys in
darwin | dragonfly | freebsd | netbsd | openbsd )
AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
close a pty to make it a controlling terminal (it is already a
controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
;;
esac
dnl FIXME Surely we can test for this rather than hard-code it.
case $opsys in
netbsd | openbsd) sound_device="/dev/audio" ;;
*) sound_device="/dev/dsp" ;;
esac
dnl Used in sound.c
AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
[Name of the default sound device.])
dnl Emacs can read input using SIGIO and buffering characters itself,
dnl or using CBREAK mode and making C-g cause SIGINT.
dnl The choice is controlled by the variable interrupt_input.
dnl
dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
dnl
dnl Emacs uses the presence of the USABLE_SIGIO macro
dnl to indicate whether or not signal-driven I/O is possible. It uses
dnl INTERRUPT_INPUT to decide whether to use it by default.
dnl
dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
dnl CBREAK mode has two disadvantages
dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
dnl I hear that in system V this problem does not exist.
dnl 2) Control-G causes output to be discarded.
dnl I do not know whether this can be fixed in system V.
dnl
dnl Another method of doing input is planned but not implemented.
dnl It would have Emacs fork off a separate process
dnl to read the input and send it to the true Emacs process
dnl through a pipe.
case $opsys in
darwin | gnu-linux | gnu-kfreebsd )
AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
;;
esac
dnl If the system's imake configuration file defines `NeedWidePrototypes'
dnl as `NO', we must define NARROWPROTO manually. Such a define is
dnl generated in the Makefile generated by `xmkmf'. If we don't define
dnl NARROWPROTO, we will see the wrong function prototypes for X functions
dnl taking float or double parameters.
case $opsys in
cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
file defines `NeedWidePrototypes' as `NO'.])
;;
esac
dnl Used in process.c, this must be a loop, even if it only runs once.
dnl (Except on SGI; see below. Take that, clarity and consistency!)
AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
dnl trying suffixes 0-16.
AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
first PTY, if PTYs are supported.])
AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
end of a PTY, if non-standard.])
AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
end of a PTY, if non-standard.])
case $opsys in
aix4-2 )
AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
dnl You allocate a pty by opening /dev/ptc to get the master side.
dnl To get the name of the slave side, you just ttyname() the master side.
AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
;;
cygwin )
AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
dnl multi-line AC_DEFINEs are hard. :(
AC_DEFINE(PTY_OPEN, [ do { int dummy; sigset_t blocked, procmask; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, &procmask); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; pthread_sigmask (SIG_SETMASK, &procmask, 0); if (fd >= 0) emacs_close (dummy); } while (false)])
AC_DEFINE(PTY_NAME_SPRINTF, [])
AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
;;
gnu | openbsd )
AC_DEFINE(FIRST_PTY_LETTER, ['p'])
;;
gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin )
dnl if HAVE_GRANTPT
if test "x$ac_cv_func_grantpt" = xyes; then
AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
dnl to prevent sigchld_handler from intercepting the child's death.
AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
dnl if HAVE_POSIX_OPENPT
if test "x$ac_cv_func_posix_openpt" = xyes; then
AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
AC_DEFINE(PTY_NAME_SPRINTF, [])
dnl if HAVE_GETPT
elif test "x$ac_cv_func_getpt" = xyes; then
AC_DEFINE(PTY_OPEN, [fd = getpt ()])
AC_DEFINE(PTY_NAME_SPRINTF, [])
else
AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
fi
else
AC_DEFINE(FIRST_PTY_LETTER, ['p'])
fi
;;
hpux*)
AC_DEFINE(FIRST_PTY_LETTER, ['p'])
AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
;;
irix6-5 )
dnl It looks like this cannot be right, because it is not a loop.
dnl However, process.c actually does this:
dnl # ifndef __sgi
dnl continue;
dnl # else
dnl return -1;
dnl # endif
dnl which presumably makes it OK, since irix == sgi (?).
dnl FIXME it seems like this special treatment is unnecessary?
dnl Why can't irix use a single-trip loop like eg cygwin?
AC_DEFINE(PTY_ITERATION, [])
dnl Not used, because PTY_ITERATION is defined.
AC_DEFINE(FIRST_PTY_LETTER, ['q'])
AC_DEFINE(PTY_OPEN, [ { struct sigaction ocstat, cstat; struct stat stb; char * name; sigemptyset(&cstat.sa_mask); cstat.sa_handler = SIG_DFL; cstat.sa_flags = 0; sigaction(SIGCHLD, &cstat, &ocstat); name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); sigaction(SIGCHLD, &ocstat, (struct sigaction *)0); if (name == 0) return -1; if (fd < 0) return -1; if (fstat (fd, &stb) < 0) return -1; strcpy (pty_name, name); }])
dnl No need to get the pty name at all.
AC_DEFINE(PTY_NAME_SPRINTF, [])
dnl No need to use sprintf to get the tty name--we get that from _getpty.
AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
;;
sol2* )
dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
dnl from intercepting that death. If any child but grantpt's should die
dnl within, it should be caught after sigrelse(2).
AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
;;
unixware )
dnl Comments are as per sol2*.
AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) fatal("could not grant slave pty"); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
;;
esac
case $opsys in
sol2* | unixware )
dnl This change means that we don't loop through allocate_pty too
dnl many times in the (rare) event of a failure.
AC_DEFINE(FIRST_PTY_LETTER, ['z'])
AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
dnl Push various streams modules onto a PTY channel. Used in process.c.
AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (xforkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (xforkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
;;
esac
AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
"typing" a signal character on the pty.])
case $opsys in
dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
;;
dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
gnu-linux | gnu-kfreebsd )
AC_MSG_CHECKING([for signals via characters])
AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
#include <linux/version.h>
#if LINUX_VERSION_CODE < 0x20400
# error "Linux version too old"
#endif
]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
AC_MSG_RESULT([$emacs_signals_via_chars])
test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
;;
esac
dnl Used in lisp.h, emacs.c, vm-limit.c
dnl NEWS.18 describes this as "a number which contains
dnl the high bits to be inclusive or'ed with pointers that are unpacked."
AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
stored in a Lisp_Object.])
dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
case $opsys in
aix*)
dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
AC_DEFINE(DATA_SEG_BITS, [0x20000000])
;;
hpux*)
dnl The data segment on this machine always starts at address 0x40000000.
AC_DEFINE(DATA_SEG_BITS, [0x40000000])
;;
irix6-5)
AC_DEFINE(DATA_SEG_BITS, [0x10000000])
;;
esac
AH_TEMPLATE(TAB3, [Undocumented.])
case $opsys in
darwin) AC_DEFINE(TAB3, OXTABS) ;;
gnu | dragonfly | freebsd | netbsd | openbsd )
AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
AC_DEFINE(TAB3, OXTABS)
;;
gnu-linux | gnu-kfreebsd )
AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
#ifndef __ia64__
# error "not ia64"
#endif
]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
[do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
[Mark a secondary stack, like the register stack on the ia64.]), [])
;;
hpux*)
AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
run_time_remap; for HPUX.])
;;
esac
dnl This won't be used automatically yet. We also need to know, at least,
dnl that the stack is continuous.
AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
registers relevant for conservative garbage collection in the jmp_buf.])
case $opsys in
dnl Not all the architectures are tested, but there are Debian packages
dnl for SCM and/or Guile on them, so the technique must work. See also
dnl comments in alloc.c concerning setjmp and gcc.
dnl Fixme: it's probably safe to just use the GCC conditional below.
gnu-linux | gnu-kfreebsd )
AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
#if defined __i386__ || defined __sparc__ || defined __mc68000__ \
|| defined __alpha__ || defined __mips__ || defined __s390__ \
|| defined __arm__ || defined __powerpc__ || defined __amd64__ \
|| defined __ia64__ || defined __sh__
/* ok */
#else
# error "setjmp not known to work on this arch"
#endif
]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
;;
esac
if test x$GCC = xyes; then
dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
AC_DEFINE(GC_SETJMP_WORKS, 1)
else
case $opsys in
dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
AC_DEFINE(GC_SETJMP_WORKS, 1)
;;
esac
fi dnl GCC?
dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
[AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <setjmp.h>
#ifdef __MINGW32__
# define _longjmp longjmp
#endif
]],
[[jmp_buf j;
if (! _setjmp (j))
_longjmp (j, 1);]])],
[emacs_cv_func__setjmp=yes],
[emacs_cv_func__setjmp=no])])
if test $emacs_cv_func__setjmp = yes; then
AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
else
AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
[AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <setjmp.h>
]],
[[sigjmp_buf j;
if (! sigsetjmp (j, 1))
siglongjmp (j, 1);]])],
[emacs_cv_func_sigsetjmp=yes],
[emacs_cv_func_sigsetjmp=no])])
if test $emacs_cv_func_sigsetjmp = yes; then
AC_DEFINE([HAVE_SIGSETJMP], 1,
[Define to 1 if sigsetjmp and siglongjmp work.
The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
fi
fi
case $opsys in
sol2* | unixware )
dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
dnl and this is all we need.
AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
;;
esac
case $opsys in
hpux* | sol2* )
dnl Used in xfaces.c.
AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
some systems, where it requires time.h.])
;;
esac
dnl Define symbols to identify the version of Unix this is.
dnl Define all the symbols that apply correctly.
AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
case $opsys in
aix4-2)
AC_DEFINE(USG, [])
dnl This symbol should be defined on AIX Version 3 ???????
AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
#ifndef _AIX
# error "_AIX not defined"
#endif
]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
;;
cygwin)
AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
;;
darwin)
dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
dnl distinguish OS X from pure Darwin.
AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
;;
gnu-linux | gnu-kfreebsd )
AC_DEFINE(USG, [])
AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
;;
hpux*)
AC_DEFINE(USG, [])
AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
;;
irix6-5)
AC_DEFINE(USG, [])
AC_DEFINE(USG5_4, [])
AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
;;
mingw32)
AC_DEFINE(DOS_NT, [])
AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
if test "x$ac_enable_checking" != "x" ; then
AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
fi
;;
sol2*)
AC_DEFINE(USG, [])
AC_DEFINE(USG5_4, [])
AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
;;
unixware)
AC_DEFINE(USG, [])
AC_DEFINE(USG5_4, [])
;;
esac
AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
[case $opsys in
aix4-2)
dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
emacs_cv_usable_FIONREAD=no
;;
mingw32)
emacs_cv_usable_FIONREAD=yes
;;
*)
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[#include <sys/types.h>
#include <sys/ioctl.h>
#ifdef USG5_4