Fix openssl support

[sxemacs] / configure.ac

dnl SXEmacs config script for autoconf >=2.60
dnl -------------------------------------------------------------------------
dnl Overrides of standard autoconf macros.

m4_include([sxemacs_version.m4])

dnl -------------------------------------------------------------------------
dnl Autoconf startup.
dnl -------------------------------------------------------------------------

AC_PREREQ([2.62])
AC_INIT([SXEmacs], [SXEM4CS_VERSION], [http://issues.sxemacs.org/])
AC_CONFIG_HEADER([src/config.h])
AC_CONFIG_SRCDIR([src/lisp.h])
AC_CONFIG_AUX_DIR([.])
AC_CONFIG_MACRO_DIR([m4])

dnl -------------------------------------------------------------------------
dnl Local copyright notices.
dnl -------------------------------------------------------------------------

AC_COPYRIGHT(
[#### Configuration script for SXEmacs.  Largely divergent from FSF.
#### Guess values for system-dependent variables and create Makefiles.
#### Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
#### Copyright (C) 1993-1995 Board of Trustees, University of Illinois.
#### Copyright (C) 1996, 1997 Sun Microsystems, Inc.
#### Copyright (C) 1995, 1996, 2002, 2003, 2004 Ben Wing.
#### Copyright (C) 2000, 2001 Martin Buchholz.
#### Copyright (C) 1998, 1999 J. Kean Johnston.
#### Copyright (C) 2005 Malcolm Purvis.
#### Copyright (C) 2005, 2006, 2007 Steve Youngs.
#### Copyright (C) 2006, 2007, 2008 Sebastian Freundt.
#### Copyright (C) 2007, 2010, 2011, 2012 Nelson Ferreira

### Don't edit this script!
### This script was automatically generated by the `autoconf' program
### from the file `./configure.ac'.
### To rebuild it, execute the command
###     autoconf
### in the this directory.

### This file is part of SXEmacs.

### SXEmacs is free software: you can redistribute it and/or modify
### it under the terms of the GNU General Public License as published by
### the Free Software Foundation, either version 3 of the License, or
### (at your option) any later version.

### SXEmacs is distributed in the hope that it will be useful,
### but WITHOUT ANY WARRANTY; without even the implied warranty of
### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
### GNU General Public License for more details.

### You should have received a copy of the GNU General Public License
### along with this program.  If not, see <http://www.gnu.org/licenses/>.

### Parts of SXEmacs are also distributed under a BSD-like licence.
### Check file headers for more information.

### For usage, run `./configure --help'
### For more detailed information on building and installing SXEmacs,
### read the file `INSTALL'.
###
### If configure succeeds, it leaves its status in config.status.
### A log of configuration tests can be found in config.log.
### If configure fails after disturbing the status quo,
###     config.status is removed.
])

AC_REVISION([SXEM4CS_GIT_VERSION])


dnl Build Options
dnl =============
OG_OPTION_GROUP(Build Options)

OG_ARG_WITH([prefix],
        AS_HELP_STRING([--with-prefix@<:@=ARG@:>@],
                [Whether to compile the value of --prefix into the executable.]),
        [yes], [YES (DO compile prefix into the executable)])

OG_ARG_WITH([sitemoduledir],
        AS_HELP_STRING([--with-sitemoduledir=DIR],
                [Directory for loadable modules that are not part of
                the SXEmacs core distribution (3rd party emodules).]),
        [none], [$prefix/lib/sxemacs/$build/site-modules], [og_any],
        [AC_DEFINE([SITEMODULEDIR_USER_DEFINED], [1],
                [sitemoduledir has been specified on the configure line.])],
        [with_sitemoduledir='${libdir}/${PROGNAME}/${configuration}/site-modules'])

OG_ARG_WITH([site-includes],
        AS_HELP_STRING([--with-site-includes=PATH],
                [Colon separated list of _extra_ include directories
                to search for headers.]),
        [none], [None], [og_any])

OG_ARG_WITH([site-libraries],
        AS_HELP_STRING([--with-site-libraries=PATH],
                [Colon separated list of extra lib directories to
                search for libraries. (Default: None)]),
        [none], [None], [og_any])

OG_ARG_WITH([site-prefixes],
        AS_HELP_STRING([--with-site-prefixes=PATH],
                [Colon separated list of extra prefix directories to
                search for headers and libraries.  Sometimes this can
                be used instead of specifying both
                --with-site-includes and
                --with-site-libraries.]),
        [none], [None], [og_any])

OG_ARG_WITH([lispdir],
        AS_HELP_STRING([--with-lispdir=DIR],
                [Where to install core lisp files.]),
        [none], [$prefix/lib/sxemacs-$version/lisp], [og_any],
        [AC_DEFINE([LISPDIR_USER_DEFINED], [1],
                [lispdir has been specified on the configure line.])],
        [with_lispdir='${datadir}/${instvardir}/lisp'])

OG_ARG_WITH([archlibdir],
        AS_HELP_STRING([--with-archlibdir=DIR],
                [Directory for arch-dependent files.]),
        [none], [$prefix/lib/sxemacs-$version/$build], [og_any],
        [AC_DEFINE([ARCHLIBDIR_USER_DEFINED], [1],
                [archlibdir has been specified on the configure line.])],
        [with_archlibdir='${libdir}/${instvardir}/${configuration}'])

OG_ARG_WITH([moduledir],
        AS_HELP_STRING([--with-moduledir=DIR],
                [Directory for loadable modules.]),
        [none], [$prefix/lib/sxemacs-$version/$build/modules], [og_any],
        [AC_DEFINE([MODULEDIR_USER_DEFINED], [1],
                [moduledir has been specified on the configure line.])],
        [with_moduledir='${libdir}/${instvardir}/${configuration}/modules'])

OG_ARG_WITH([etcdir],
        AS_HELP_STRING([--with-etcdir=DIR],
                []),
        [none], [$prefix/lib/sxemacs-$version/etc], [og_any],
        [AC_DEFINE([ETCDIR_USER_DEFINED], [1],
                [etcdir has been specified on the configure line.])],
        [with_etcdir='${datadir}/${instvardir}/etc'])

OG_ARG_WITH([infopath],
        AS_HELP_STRING([--with-infopath=PATH],
                [Colon separated list of directories to use as
                the info search path. This is not normally needed.]),
        [none], [None], [og_any],
        [AC_DEFINE([INFOPATH_USER_DEFINED], [1],
                [inforpath has been specified on the configure line.])], [])

OG_ARG_WITH([docdir],
        AS_HELP_STRING([--with-docdir=DIR],
                [Where it store certain doc files (not info or man).]),
        [none], [$prefix/lib/sxemacs-$version/$build], [og_any],
        [AC_DEFINE([DOCDIR_USER_DEFINED], [1],
                [docdir has been specified on the configure line.])],
        [with_docdir='${archlibdir}'])

OG_ARG_WITH([site-runtime-libraries],
        AS_HELP_STRING([--with-site-runtime-libraries=PATH],
                [Colon separated list of directories to search for
                libraries at run time.  This isn't normally needed.]),
        [none], [None], [og_any])

OG_ARG_WITH([module-path],
        AS_HELP_STRING([--with-module-path=PATH],
                [Search path to the emodules directories.
                A colon separated list of directories. Normally, there is
                no need to set this.]),
        [none], [None], [og_any],
        [AC_DEFINE([MODULE_PATH_USER_DEFINED], [1],
                [module-path has been specified on the configure line.])],
        [])

OG_ARG_WITH([package-prefix],
        AS_HELP_STRING([--with-package-prefix=PATH],
                [What to use as a prefix to the system-wide package
                directories.  It doesn't affect the package directories
                under the user's home directory, and is totally ignored if
                --with-package-path is set.
                Normally, you would not need to set this.]),
        [none], [None], [og_any],
        [AC_DEFINE([PACKAGE_PREFIX_USER_DEFINED], [1],
                [package-prefix has been specified on the configure line.])],
        [])

OG_ARG_WITH([package-path],
        AS_HELP_STRING([--with-package-path=PATH],
                [Search path to the package directories.
                This path is made up of 3 separate "path elements",
                each element is a colon separated list of directories,
                with the boundary between elements being a double
                colon.  The 3 path elements are for "early", "late",
                and "last" package directories.  If only a single
                element is specified it is "late".  Example:
                early1:early2::late1:late2::last1:last2.  Setting this
                overrides --with-package-prefix.  Normally, there is
                no need to set this.]),
        [none], [None], [og_any],
        [AC_DEFINE([PACKAGE_PATH_USER_DEFINED], [1],
                [package-path has been specified on the configure line.])],
        [])

dnl stupid option, innit?
OG_ARG_WITH([quick-build],
        AS_HELP_STRING([--with-quick-build],
                [Speed up the build cycle by leaving out steps where
                SXEmacs will still work (more or less) without them.
                Potentially dangerous if you don't know what you're
                doing. This (1) doesn't garbage-collect after loading
                each file during dumping, (2) doesn't automatically
                rebuild the DOC file (remove it by hand to get it
                rebuilt), (3) Removes config.h lisp.h and associated
                files from the dependency lists so changes to these
                files don't automatically cause all .c files
                to be rebuilt.]),
        [no], [No], [])

OG_ARG_WITH([compiler],
        AS_HELP_STRING([--with-compiler=COMPILER],
                [Do not use me! Use CC=<your-compiler> instead!
                C compiler to use.
                Note: SXEmacs _CANNOT_ be built with a C++ compiler.]),
        [none], [None], [og_any], [
                OG_WARN_OBSOLETE_OPTION([--with-compiler], [CC=<your-cc>])])

OG_ARG_WITH([cflags],
        AS_HELP_STRING([--with-cflags],
                [Do not use me! Use CFLAGS=<your flags> instead!
                Compiler flags (such as -O); setting this overrides
                all default compiler flags except those that control
                warnings. Most people wouldn't need to set
                this.]),
        [none], [None], [og_any], [
                OG_WARN_OBSOLETE_OPTION([--with-cflags], [CFLAGS=<your flags>])])

OG_ARG_WITH([cflags-warning],
        AS_HELP_STRING([--with-cflags-warning],
                [Do not use me! I will disappear soon!]),
        [none], [None], [og_any])

OG_ARG_WITH([cpp],
        AS_HELP_STRING([--with-cpp],
                [Do not use me! Use CPP=<your-cpp> instead!]),
        [none], [None], [og_any], [
                OG_WARN_OBSOLETE_OPTION([--with-cpp], [CPP=<your-cpp>])
                CPP="$with_cpp"])

OG_ARG_WITH([cppflags],
        AS_HELP_STRING([--with-cppflags],
                [Do not use me! Use CPPFLAGS=<your flags> instead!]),
        [none], [None], [og_any], [
                OG_WARN_OBSOLETE_OPTION([--with-cppflags], [CPPFLAGS=<your flags>])
                CPPFLAGS="$with_cppflags"])

OG_ARG_WITH([libs],
        AS_HELP_STRING([--with-libs],
                [Do not use me! Use LIBS=<your libs> instead!]),
        [none], [None], [og_any], [
                OG_WARN_OBSOLETE_OPTION([--with-libs], [LIBS=<your libs>])
                LIBS="$with_libs"])

OG_ARG_WITH([ldflags],
        AS_HELP_STRING([--with-ldflags],
                [Do not use me! Use LDFLAGS=<your flags> instead!]),
        [none], [None], [og_any], [
                OG_WARN_OBSOLETE_OPTION([--with-ldflags], [LDFLAGS=<your flags>])
                LDFLAGS="$with_ldflags"])

OG_ARG_WITH([ridiculously-aggressive-optimisations],
        AS_HELP_STRING([--with-ridiculously-aggressive-optimisations],
                [Whether to try all possible optimisations]),
        [no], [No])

OG_ARG_WITH([maximum-warning-output],
        AS_HELP_STRING([--with-maximum-warning-output],
                [Whether to output as many warnings as possible]),
        [no], [No])


dnl Internal Options
dnl ================
OG_OPTION_GROUP(Internal Options)

OG_ARG_WITH([dynamic],
        AS_HELP_STRING([--with-dynamic],
                [Link dynamically if supported by system.
                'NO' forces static linking.]),
        [auto], [Autodetect])

OG_ARG_WITH([rel-alloc],
        AS_HELP_STRING([--with-rel-alloc],
                [Relocating allocator for buffers.]),
        [default], [Autodetect])

OG_ARG_WITH([dlmalloc],
        AS_HELP_STRING([--with-dlmalloc],
                [Use Doug Lea's malloc.]),
        [default], [Autodetect])

OG_ARG_WITH([debug-malloc],
        AS_HELP_STRING([--with-debug-malloc],
                [Use a debugging malloc.]),
        [no], [NO])

OG_ARG_WITH([system-malloc],
        AS_HELP_STRING([--with-system-malloc],
                [Use a system malloc instead of GNU.]),
        [default], [YES if using quantify or purify; NO otherwise])

OG_ARG_WITH([regex-malloc],
        AS_HELP_STRING([--with-regex-malloc],
                [Use malloc for regex failure stack.]),
        [yes], [YES])

OG_ARG_WITH([ffi],
        AS_HELP_STRING([--with-ffi],
                [Compile in experimental support for
                Foreign Function Interface.]),
        [yes], [YES])

OG_ARG_WITH([module-support],
        AS_HELP_STRING([--with-module-support],
                [Compile in experimental support for dynamically
                loaded libraries (Dynamic Shared Objects).]),
        [yes], [YES if shared libraries are supported])

OG_MULTIARG_WITH([modules], [dnl
        AS_HELP_STRING([--with-modules], [
                Which modules to compile and install.])],
        [all], [all], [dnl
        OG_MULTIARG_ITEM([ase], [ase], [algebraic structures])
        OG_MULTIARG_ITEM([cl], [cl], [fast Common Lisp implementation])
])
        dnl OG_MULTIARG_ITEM([dbus], [dbus], [D-BUS bindings])

OG_MULTIARG_WITH([static-modules], [dnl
        AS_HELP_STRING([--with-static-modules], [
                Which modules to compile as archives to link their
                functionality statically into the SXEmacs binary.])
        AS_HELP_STRING([], [
                You should regard this as a proof of concept.])],
        [none], [NONE], [dnl
        OG_MULTIARG_ITEM([ase], [ase], [algebraic structures])
        OG_MULTIARG_ITEM([cl], [cl], [fast Common Lisp implementation])
])
        dnl OG_MULTIARG_ITEM([dbus], [dbus], [D-BUS bindings])

OG_MULTIARG_WITH([ent], [dnl
        AS_HELP_STRING([--with-ent], [
                Compile in support for enhanced number types,
                using internal and external libraries.])],
        [none int fpfloat indef gmp], [int fpfloat indef gmp], [dnl
        OG_MULTIARG_ITEM([int], [int], [native integer arithmetics])
        OG_MULTIARG_ITEM([fpfloat], [fpfloat], [native fixed precision floats])
        OG_MULTIARG_ITEM([indef], [indef], [native abstract indefinites])
        OG_MULTIARG_ITEM([gmp], [GMP], [GNU multiprecision library])
        OG_MULTIARG_ITEM([mpfr], [MPFR], [Multiprecision Floats with correct Rounding])
        OG_MULTIARG_ITEM([mpc], [MPC], [Multiprecision Complex numbers (C/R)])
        OG_MULTIARG_ITEM([pseug], [pseudoG], [native Gaussian Numbers (Z+Z)])
        OG_MULTIARG_ITEM([pseuc], [pseudoC], [native Complex Numbers (C/R)])
        OG_MULTIARG_ITEM([quatern], [Quaternions], [native Quaternions (Z+Z+Z+Z)])
        OG_MULTIARG_ITEM([ecm], [ECM], [factorisations per Elliptic Curve Method])
        OG_MULTIARG_MUTEX([mpz], [Arbitrary precision integers], [gmp mp])
        OG_MULTIARG_MUTEX([complex], [Complex numbers as in C/R], [mpc pseuc])
])

OG_MULTIARG_WITH([ase], [dnl
        AS_HELP_STRING([--with-ase], [
                Compile in support for algebraic structures based on ENT,
                using internal and external libraries.])],
        [none], [none], [dnl
        OG_MULTIARG_ITEM([cart], [cartesian], [Cartesian Products of ENT and ASE objects])
        OG_MULTIARG_ITEM([dig], [digraph], [Directed 2-ary Graphs with Colours])
        OG_MULTIARG_ITEM([intv], [interval], [Intervals of comparable or normed ENT and ASE objects])
        OG_MULTIARG_ITEM([metric], [metric], [Metric Spaces])
        OG_MULTIARG_ITEM([nbhood], [neighbourhood], [Neighbourhoods of comparable or normed ENT and ASE objects])
        OG_MULTIARG_ITEM([perm], [permutation], [Permutations])
        OG_MULTIARG_ITEM([resclass], [resclass], [Residue Class Rings and Classes])
])

OG_ARG_WITH([compre],
        AS_HELP_STRING([--with-compre],[
                Provide exhaustive caching of compiled regexps. This will
                mean that frequently used regexps will be faster to use
                since the compile step will not be needed after first use.]),
        [yes], [By default do cache compiled regexps.])

OG_MULTIARG_WITH([experimental-features], [dnl
        AS_HELP_STRING([--with-experimental-features], [
                Activate experimental code, that is code which is
                considered useful but whose effects in conjunction with
                the variety of elisp projects cannot be foreseen.])
        AS_HELP_STRING([], [
                During the beta phase of SXEmacs all experimental code
                will be unconditionally enabled.  However, if you plan
                to use this SXEmacs in a production environment you
                can switch off some portions.])],
        [all nobdwgc], [ALL but bdwgc], [dnl
        OG_MULTIARG_ITEM([bdwgc], [bdwgc], [the Boehm-Demers-Weiser collector])
        OG_MULTIARG_ITEM([asyneq], [asyneq], [asynchronous event queues])
])
        dnl stop that pom stuff
        dnl OG_MULTIARG_ITEM([pom], [pom], [thread-safe objects])

OG_ARG_WITH([event-driver],
        AS_HELP_STRING([--with-event-driver], [
                Which event routines to use.
                Events control the way how external `sources' are
                incorporated into SXEmacs.  Sources hereby are user inputs,
                such as key strokes, mouse moves, pedalling, slapping the
                monitor, etc.; but there are manifold further sources, such as
                process signals, data on a socket, focussing an X window,
                lapsing a timeout, and so forth.])
AS_HELP_STRING([], [
                An event driver can cope with all (or most) of these in a
                uniform and abstract way.  SXEmacs can either be driven
                using its built-in event handlers, or using one of the
                external systems.]),
        [auto], [Autodetect], [auto built-in libevent liboop glib])


dnl Debugging Options
dnl ================
OG_OPTION_GROUP(Debugging Options)

OG_ARG_WITH([debug],
        AS_HELP_STRING([--with-debug],
                [Compile with extra debugging code.
                This will turn on: --with-assertions
                and --with-memory-usage-stats.]),
        [yes], [YES for beta; NO for release])

OG_ARG_WITH([memory-usage-stats],
        AS_HELP_STRING([--with-memory-usage-stats],
                [Compile with support for statistics about memory usage at runtime.]),
        [yes], [YES for beta])

OG_MULTIARG_WITH([error-checking], [dnl
        AS_HELP_STRING([--with-error-checking=TYPE], [
                Compile with internal error-checking added.])
        AS_HELP_STRING([], [
                WARNING: Causes noticeable loss of speed!])],
        [all], [ALL for beta; NONE otherwise], [dnl
        OG_MULTIARG_ITEM([extents], [extents], [checks on extents])
        OG_MULTIARG_ITEM([types], [types], [checks on types])
        OG_MULTIARG_ITEM([gc], [gc], [checks on garbage collection])
        OG_MULTIARG_ITEM([malloc], [malloc], [checks on memory allocation])
        OG_MULTIARG_ITEM([byte_code], [byte_code], [checks on byte compiled code])
        OG_MULTIARG_ITEM([bufpos], [bufpos], [checks on buffer position])
        OG_MULTIARG_ITEM([glyphs], [glyphs], [checks on glyph data])
        OG_MULTIARG_ITEM([stack], [stack], [checks on stack barriers])
        OG_MULTIARG_ITEM([malldbg], [malldbg], [malloc debugging code])
])

OG_ARG_WITH([purify],
        AS_HELP_STRING([--with-purify],
                [Add support for memory debugging using Purify.]),
        [no], [NO])

OG_ARG_WITH([quantify],
        AS_HELP_STRING([--with-quantify],
                [Add support for performance debugging using Quantify.]),
        [no], [NO])


dnl Window System Features
dnl ======================
OG_OPTION_GROUP(Window System Features)

OG_ARG_WITH([toolbars],
        AS_HELP_STRING([--with-toolbars],
                [Compile in toolbar support.]),
        [yes], [YES])

OG_ARG_WITH([external-widget],
        AS_HELP_STRING([--with-external-widget],
                [Enable the "external widget" interface,
                which allows a SXEmacs frame to appear as a widget in
                another application.
                To date, we haven't heard of anyone who has actually done this.
                Consider this EXPERIMENTAL.]),
        [no], [NO])

OG_ARG_WITH([menubars],
        AS_HELP_STRING([--with-menubars=TYPE],
                [Type of menubars to use.  The Lucid menubars emulate
                Motif (mostly) but are faster.]),
        [lucid], [Lucid], [lucid no])

OG_ARG_WITH([scrollbars],
        AS_HELP_STRING([--with-scrollbars=TYPE],
                [Type of scrollbars to use.
                *WARNING*  The Motif scrollbars are currently broken.]),
        [lucid], [Lucid], [lucid motif athena no])

OG_ARG_WITH([dialogs],
        AS_HELP_STRING([--with-dialogs=TYPE],
                [Type of dialog boxes to use.  Athena dialogs will
                 be used if Athena can be found.]),
        [athena], [], [athena motif no])

OG_ARG_WITH([widgets],
        AS_HELP_STRING([--with-widgets=TYPE],
                [Type of native widgets to use.  Athena widgets will
                be used if Athena can be found.]),
        [athena], [], [athena motif no])

OG_ARG_WITH([athena],
        AS_HELP_STRING([--with-athena=TYPE],
                [Type of Athena widgets to use.]),
        [auto], [Autodetect], [auto xaw 3d next 95 xpm no])

OG_ARG_WITH([xim],
        AS_HELP_STRING([--with-xim],
                [Type of Mule input method to use.]),
        [auto], [Autodetect], [yes no xlib motif])

OG_ARG_WITH([wmcommand],
        AS_HELP_STRING([--with-wmcommand],
                [Compile with realized leader window which will
                keep the WM_COMMAND property.]),
        [yes], [YES])

OG_ARG_WITH([xmu],
        AS_HELP_STRING([--with-xmu],
                [For those unfortunates whose vendors don't ship Xmu.]),
        [auto], [Autodetect])

OG_ARG_WITH([xfs],
        AS_HELP_STRING([--with-xfs],
                [Compile with XFontSet support for internationalized
                menubar.  Incompatible with `--with-xim=motif'.
                `--with-menubars=lucid' (the default) is desirable.]),
        [no], [NO])

dnl TTY Options
dnl ================
OG_OPTION_GROUP(TTY options)

OG_ARG_WITH([tty],
        AS_HELP_STRING([--with-tty],
                [Add support for ttys.]),
        [auto], [Autodetect])

OG_ARG_WITH([ncurses],
        AS_HELP_STRING([--with-ncurses],
                [Use the ncurses library for tty support.]),
        [auto], [Autodetect])

OG_ARG_WITH([curses],
        AS_HELP_STRING([--with-curses],
                [Use the curses library for tty support.]),
        [auto], [Autodetect])

OG_ARG_WITH([terminfo],
        AS_HELP_STRING([--with-terminfo],
                [Use the terminfo library for tty support.]),
        [auto], [Autodetect])

OG_ARG_WITH([tinfo],
        AS_HELP_STRING([--with-tinfo],
                [Use the ncurses tinfo library for tty support.]),
        [auto], [Autodetect])

OG_ARG_WITH([termlib],
        AS_HELP_STRING([--with-termlib],
                [Use the termlib library for tty support.]),
        [auto], [Autodetect])

OG_ARG_WITH([termcap],
        AS_HELP_STRING([--with-termcap],
                [Use the termcap library for tty support.]),
        [auto], [Autodetect])

OG_ARG_WITH([builtin-tty],
        AS_HELP_STRING([--with-builtin-tty],
                [Use builtin termcap like code. LEGACY CODE. Please consider
                installing ncurses. Requires /etc/termcap or TERMCAP
                environment variable to work.]),
        [no], [No])


OG_ARG_WITH([gpm],
        AS_HELP_STRING([--with-gpm],
                [Compile in GPM mouse support for ttys.]),
        [auto], [Autodetect])


dnl Database Options
dnl ================
OG_OPTION_GROUP(Database options)

OG_MULTIARG_WITH([database], [dnl
        AS_HELP_STRING([--with-database=TYPE],
                [Compile with database support.])],
        [auto], [Autodetect], [dnl
        OG_MULTIARG_ITEM([berkdb], [berkdb], [Berkeley DB support])
        OG_MULTIARG_ITEM([dbm], [dbm], [DBM database support])
        OG_MULTIARG_ITEM([gdbm], [gdbm], [GNU DBM support])
])

OG_ARG_WITH([ldap],
        AS_HELP_STRING([--with-ldap],
                [Compile with support for the LDAP protocol.]),
        [no], [NO])

OG_ARG_WITH([postgresql],
        AS_HELP_STRING([--with-postgresql],
                [Compile with support for the PostgreSQL RDBMS.]),
        [yes], [Autodetect])


dnl Multimedia Options
dnl ==================
OG_OPTION_GROUP(Multimedia options)

OG_MULTIARG_WITH([image], [dnl
        AS_HELP_STRING([--with-image=TYPE],
                [Compile with image support.])],
        [auto], [Autodetect all image support], [dnl
        OG_MULTIARG_ITEM([gif], [GIF], [GIF image format])
        OG_MULTIARG_ITEM([xpm], [XPM], [X PixMap image format])
        OG_MULTIARG_ITEM([png], [PNG], [Portable Network Graphic format])
        OG_MULTIARG_ITEM([jpeg], [JPEG], [jpeg image format])
        OG_MULTIARG_ITEM([tiff], [TIFF], [TIFF image format])
        OG_MULTIARG_ITEM([xface], [xface], [base64 encoded xbm])
])

OG_MULTIARG_WITH([sound], [dnl
        AS_HELP_STRING([--with-sound=TYPE],
                [Compile with sound support.])],
        [auto], [Autodetect all sound support], [dnl
        OG_MULTIARG_ITEM([alsa], [ALSA], [kernel-based linux sound standard])
        OG_MULTIARG_ITEM([ao], [ao], [generic audio output layer])
        OG_MULTIARG_ITEM([esd], [ESD], [Enlightenment Sound Daemon])
        OG_MULTIARG_ITEM([jack], [Jack], [a low-latency audio server])
        OG_MULTIARG_ITEM([nas], [NAS], [Network Audio System])
        OG_MULTIARG_ITEM([oss], [OSS], [Open Sound System])
        OG_MULTIARG_ITEM([pulse], [PulseAudio], [PulseAudio Sound Server])
])

OG_MULTIARG_WITH([media], [dnl
        AS_HELP_STRING([--with-media=TYPE],
                [Compile with media stream support.])],
        [auto], [Autodetect all media stream support libraries], [dnl
        OG_MULTIARG_ITEM([ffmpeg], [FFmpeg], [media streams handled by ffmpeg])
        OG_MULTIARG_ITEM([internal], [internal], [media streams handled internally])
        OG_MULTIARG_ITEM([mad], [Mad], [media streams handled by mad])
        OG_MULTIARG_ITEM([sndfile], [sndfile], [media streams handled by sndfile])
        OG_MULTIARG_ITEM([sox], [SoX], [media streams handled by sox])
        OG_MULTIARG_ITEM([magic], [magic], [file/libmagic support])
])


dnl Cryptography Options
dnl ====================
OG_OPTION_GROUP(Cryptography options)

OG_ARG_WITH([openssl],
        AS_HELP_STRING([--with-openssl],
                [Compile in experimental support for
                OpenSSL libcrypto and libssl.]),
        [yes], [YES])

OG_ARG_WITH([gnutls],
        AS_HELP_STRING([--with-gnutls],
                [Compile in experimental support for
                GnuTLS transport security.]),
        [no], [NO])


dnl Networking Options
dnl ==================
OG_OPTION_GROUP(Networking options)

OG_ARG_WITH([dnet],
        AS_HELP_STRING([--with-dnet],
                [Compile with support for DECnet.]),
        [no], [NO])

OG_ARG_WITH([socks],
        AS_HELP_STRING([--with-socks],
                [Compile with support for SOCKS (an Internet proxy).]),
        [auto], [Autodetect])

OG_ARG_WITH([ipv6-cname],
        AS_HELP_STRING([--with-ipv6-cname],
                [Try IPv6 information first when canonicalizing host names.
                This option has no effect unless system supports
                getaddrinfo(3) and getnameinfo(3).]),
        [no], [NO])

OG_ARG_WITH([pop],
        AS_HELP_STRING([--with-pop],
                [Support POP for mail retrieval.]),
        [no], [NO])

OG_ARG_WITH([kerberos],
        AS_HELP_STRING([--with-kerberos],
                [Support Kerberos-authenticated POP.]),
        [no], [NO])

OG_ARG_WITH([hesiod],
        AS_HELP_STRING([--with-hesiod],
                [Support Hesiod to get the POP server host.]),
        [no], [NO])


dnl File-related Options
dnl ====================
OG_OPTION_GROUP(File-related options)

OG_ARG_WITH([clash-detection],
        AS_HELP_STRING([--with-clash-detection],
                [Use lock files to detect multiple edits
                of the same file.]),
        [no], [NO])

OG_ARG_WITH([mail-locking],
        AS_HELP_STRING([--with-mail-locking=TYPE],
                [Specify the locking to be used by movemail to prevent
                concurrent updates of mail spool files. Valid types
                are `lockf'  `flock'  `file'  `locking'  `pop' or `mmdf'.]),
        [auto], [Autodetect], [lockf flock file locking mmdf pop no])


dnl Internationalisation Options
dnl ============================
OG_OPTION_GROUP(Internationalisation options)

OG_ARG_WITH([mule],
        AS_HELP_STRING([--with-mule],
                [Compile with Mule (MUlti-Lingual Emacs) support
                needed to support non-Latin-1 (including Asian)
                languages.]),
        [yes], [YES])

OG_ARG_WITH([canna],
        AS_HELP_STRING([--with-canna],
                [Compile with support for Canna (a Japanese input method
                used in conjunction with Mule support).]),
        [auto], [Autodetect when Mule is enabled])

OG_ARG_WITH([wnn],
        AS_HELP_STRING([--with-wnn],
                [Compile with support for Wnn (a multi-language input
                method used in conjunction with Mule support).]),
        [auto], [Autodetect when Mule is enabled])

OG_ARG_WITH([wnn6],
        AS_HELP_STRING([--with-wnn6],
                [Compile with support for the commercial package Wnn6.]),
        [auto], [Autodetect when Mule is enabled])



dnl dnl Other Options
dnl dnl =============
dnl OG_OPTION_GROUP(Other options)
dnl

## -------------------------------------------------------------------------
## Check for users who regularly forget about running autoconf
## -------------------------------------------------------------------------
AS_IF([test -f "$0.ac" -a "$0.ac" -nt "$0"],
   AC_MSG_ERROR([What are you doing? RUN autoreconf NOW!!!]))

#
# Turn off core generation. We are already verifying the program fails, no need
# poluting the workspace. Of course if you are a SXEmacs developer you may want
# to comment this on occasion :-)
ulimit -c 0

## initialise our nestable msg funs
SXE_INIT_MSG_LEVEL

AC_PROG_SED
AC_PROG_AWK

ECHO=echo

dnl Small snippet to make echo -n work on solaris
ECHO_N= ECHO_C=
case `echo -n x` in
-n*)
        case `echo 'x\c'` in
        *c*)
                ;;
        *)
                ECHO_C='\c'
                ;;
        esac
        ;;
*)
        ECHO_N='-n'
        ;;
esac


echo
echo "Preparing the build chain"
echo "========================="

## We should brag about ourselves, no?
AC_DEFINE([XEMACS], [1], [Pretend to be an XEmacs])
AC_DEFINE([SXEMACS], [1], [Why not? It's the truth!])

dnl -------------------------------------------------------------------------
dnl Command line argument processing.
dnl -------------------------------------------------------------------------
dnl Check for bogus options
dnl -------------------------------------------------------------------------
SXE_CHECK_COMMAND_LINE

test -z "$AUTOMAKE" || AUTOMAKE=automake

AM_INIT_AUTOMAKE(m4_esyscmd([
   automake_ver=`$AUTOMAKE --version 2>/dev/null | head -n1`
   automake_major=`echo "$automake_ver" | sed -e 's/^.* \([0-9]*\).*/\1/'`
   automake_minor=`echo "$automake_ver" | sed -e 's/^.* [0-9]*\.\([0-9]*\).*/\1/'`
   if test "$automake_major" = "1" -a "$automake_minor" -lt "14"
   then
      echo "foreign -Wall"
   else
      echo "info-in-builddir foreign -Wall"
   fi]))

m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES])
SXE_CHECK_BUILDCHAIN
AC_SUBST(EGREP)

progname=$0
progbasename=$(basename $progname)
progdirname=$(dirname $progname)

## Build Options
## =============

echo
echo "Build and System Specific Options"
echo "================================="

SXE_EXPLORE_BUILD_ENVIRONMENT

dnl ----------------------------------------
dnl Find out which version of SXEmacs this is
dnl ----------------------------------------
AC_CHECK_PROG([have_git], [git], [yes], [no])
AC_MSG_CHECKING([for SXEmacs version])
AC_MSG_RESULT([SXEmacs SXEM4CS_VERSION])
dnl Must do the following first to determine verbosity for AC_DEFINE
AS_IF([test -n "[]SXEM4CS_BETA_P[]"],beta=yes,beta=no)
: "${extra_verbose=$beta}"

AC_MSG_CHECKING([for SXEmacs patchlevel])
CURDIR=$(pwd)
cd "$sxe_srcdir"
AS_IF([test "$have_git" = "yes"], 
            [sxemacs_git_version=`git describe 2> /dev/null | head -1`])
AS_IF([test -z "$sxemacs_git_version"],
        sxemacs_git_version="[]SXEM4CS_GIT_VERSION[]")
AC_MSG_RESULT([$sxemacs_git_version])
version="$sxemacs_git_version"
cd "$CURDIR"
main_version="$sxemacs_git_version"
AC_DEFINE_UNQUOTED([EMACS_MAJOR_VERSION], [SXEM4CS_MAJOR_VERSION], [Description here!])
AC_DEFINE_UNQUOTED([EMACS_MINOR_VERSION], [SXEM4CS_MINOR_VERSION], [Description here!])
old_version=[]SXEM4CS_VERSION[]
if test -n "[]SXEM4CS_BETA_VERSION[]"; then
        AC_MSG_CHECKING([if we are a beta version])
        if test "$beta" = "yes"; then
                AC_MSG_RESULT([yes])
                AC_DEFINE_UNQUOTED([EMACS_BETA_VERSION], [SXEM4CS_BETA_VERSION],
                        [Description here!])
        else
                AC_MSG_RESULT([no])
                AC_DEFINE_UNQUOTED([EMACS_PATCH_LEVEL], [SXEM4CS_BETA_VERSION],
                        [Description here!])
        fi
fi
AC_DEFINE_UNQUOTED([SXEMACS_CODENAME], ["[]SXEM4CS_CODENAME[]"], [Description here!])
AC_DEFINE_UNQUOTED([EMACS_VERSION], ["$version"], [Description here!])
AC_DEFINE_UNQUOTED([SXEMACS_GIT_VERSION], ["$sxemacs_git_version"],
        [Description here!])

PROGNAME=sxemacs

AC_DEFINE_UNQUOTED([EMACS_PROGNAME], ["$PROGNAME"], [Description here!])

## build stuff in lib-src unconditionally
SXE_APPEND([lib-src], [MAKE_SUBDIR])
SXE_APPEND([lib-src], [INSTALL_ARCH_DEP_SUBDIR])

## C compiler build chain
AC_USE_SYSTEM_EXTENSIONS
AC_LANG([C])
AS_MESSAGE([Let's look for the entire C build chain])
SXE_CHECK_CC
SXE_CHECK_CFLAGS

m4_ifdef([AM_PROG_AR], [AM_PROG_AR])

## check machine chars
AS_MESSAGE([Let's have a detailed glance at your machine])
SXE_PROC_CPUID
SXE_PROC_VENDORID
SXE_NPROCESSORS
SXE_CHECK_PROC_GOODNESS


## Debugging Options
## =================
## echo
## echo "Debugging Options"
## echo "================="

dnl ----------------------------------
dnl Error checking and debugging flags
dnl ----------------------------------
dnl Error checking default to "yes" in beta versions, to "no" in releases.
dnl Same goes for --enable-debug and --extra-verbosity.
if test "$with_error_checking_extents" = yes; then
        have_error_checking_extents="yes"
        AC_DEFINE([ERROR_CHECK_EXTENTS], [1], [Description here!])
        AC_DEFINE([USE_ASSERTIONS], [1], [Description here!])
fi
if test "$with_error_checking_types" = yes; then
        have_error_checking_types="yes"
        AC_DEFINE([ERROR_CHECK_TYPECHECK], [1], [Description here!])
        AC_DEFINE_UNQUOTED([type_checking_assert(assertion)],
                [assert (assertion)], [
                Make sure that all X... macros are dereferencing the correct type,
                and that all XSET... macros (as much as possible) are setting the
                correct type of structure.  Highly recommended for all
                development work.])
        AC_DEFINE([USE_ASSERTIONS], [1], [Description here!])
else
        AC_DEFINE_UNQUOTED([type_checking_assert(assertion)], [], [])
fi
if test "$with_error_checking_bufpos" = yes; then
        have_error_checking_bufpos="yes"
        AC_DEFINE([ERROR_CHECK_BUFPOS], [1], [Description here!])
        AC_DEFINE_UNQUOTED([bufpos_checking_assert(assertion)],
                [assert (assertion)], [dnl
                Make sure valid buffer positions are passed to BUF_* macros])
        AC_DEFINE([USE_ASSERTIONS], [1], [Description here!])
else
        AC_DEFINE_UNQUOTED([bufpos_checking_assert(assertion)], [], [])
fi
if test "$with_error_checking_gc" = yes; then
        have_error_checking_gc="yes"
        AC_DEFINE([ERROR_CHECK_GC], [1], [Description here!])
        AC_DEFINE_UNQUOTED([gc_checking_assert(assertion)],
                [assert (assertion)], [dnl
                Attempt to catch bugs related to garbage collection
                (e.g. not GCPRO'ing)])
        AC_DEFINE([USE_ASSERTIONS], [1], [Description here!])
else
        AC_DEFINE_UNQUOTED([gc_checking_assert(assertion)], [], [])
fi
if test "$with_error_checking_malloc" = yes; then
        have_error_checking_malloc="yes"
        AC_DEFINE([ERROR_CHECK_MALLOC], [1], [Description here!])
        AC_DEFINE([USE_ASSERTIONS], [1], [Description here!])
fi
if test "$with_error_checking_byte_code"  = yes; then
        have_error_checking_byte_code="yes"
        AC_DEFINE([ERROR_CHECK_BYTE_CODE], [1], [Description here!])
        AC_DEFINE([USE_ASSERTIONS], [1], [Description here!])
fi
if test "$with_error_checking_glyphs" = yes; then
        have_error_checking_glyphs="yes"
        AC_DEFINE([ERROR_CHECK_GLYPHS], [1], [Description here!])
        AC_DEFINE([USE_ASSERTIONS], [1], [Description here!])
fi

dnl enable_debug=yes must be set when error checking is present.  This should be
dnl fixed up.
dnl with_debug implies other options
if test "${with_debug:=$beta}" = "yes"; then
        with_memory_usage_stats=yes
        SXE_ADD_CRUFT_OBJS([debug.o])
        SXE_ADD_CRUFT_OBJS([tests.o])
        AC_DEFINE([DEBUG_SXEMACS], [1], [Description here!])
fi
if test "$with_memory_usage_stats" = "yes"; then
        AC_DEFINE([MEMORY_USAGE_STATS], [1], [Description here!])
fi



dnl --------------------------------------------------------------
dnl $opsys detection complete; defaults depending on $opsys follow
dnl --------------------------------------------------------------


dnl --------------------------------------------------------------
dnl WooHoo! pdump is ON always and everywhere! --SY.
dnl --------------------------------------------------------------
with_pdump=yes

if test "$with_dynamic" != "no"; then
        case "$opsys" in
        hpux* | sunos4* )
                with_dynamic=no
                ;;
        *)
                with_dynamic=yes
                ;;
        esac
fi
if test "$with_dynamic" = "yes"; then
        case "$opsys" in
        hpux* | sunos4* | sco5 )
                opsys="${opsys}-shr"
                ;;
        decosf* )
                ld_call_shared="-call_shared"
                ;;
        darwin* )
                AC_DEFINE([DLSYM_NEEDS_UNDERSCORE], [1], [Description here!])
                if test "x$have_ld_no_pie" != "x"; then
                        SXE_PREPEND_LINKER_FLAG([-no_pie], [ld_switch_site])
                fi
                ;;
        esac
else dnl "$with_dynamic" = "no"
        case "$opsys" in
        sol2 )
                echo "Static linking is not supported on Solaris 2."
                echo "Rerun configure without specifying --without-dynamic."
                exit 1
                ;;
        linux )
                ld_call_shared="-Bstatic"
                ;;
        decosf* )
                ld_call_shared="-non_shared"
                ;;
        darwin* )
                AC_DEFINE([DLSYM_NEEDS_UNDERSCORE], [1], [Description here!])
                if test "x$have_ld_no_pie" != "x"; then
                        SXE_PREPEND_LINKER_FLAG([-no_pie], [ld_switch_site])
                fi
                ;;
        esac
fi

dnl Tools configuration
case "$opsys" in
aix* )
        NON_GNU_CC=xlc
        ;;      dnl Use xlc by default on AIX
darwin )
        RANLIB="ranlib -c"
        ;;  dnl Avoid link error in lwlib-config.c
        ## this needs rework I think because RANLIB is provided by LT_INIT anyway
esac

stack_trace_eye_catcher=\
`echo ${PROGNAME}_${version}_${ac_cv_build} | sed 'y!@/.-!____!'`
AC_DEFINE_UNQUOTED([STACK_TRACE_EYE_CATCHER], [$stack_trace_eye_catcher],
        [Just a very looong string to make traces more readable.])

dnl --------------------------------------------------
dnl Determine the compiler, set up for feature testing
dnl --------------------------------------------------

if test "$with_clash_detection" != "no"; then
        AC_DEFINE([CLASH_DETECTION], [1], [Description here!])
        SXE_ADD_CRUFT_OBJS([filelock.o])
fi


dnl what exactly do we determine here? and where is it used?
dnl dnl Determine GCC version.
dnl if test "$GCC" = "yes"; then
dnl     AC_RUN_IFELSE([AC_LANG_SOURCE([[
dnl int main ()
dnl {
dnl #if __GNUC__ >= 3
dnl     return 11;
dnl #else
dnl     return 0;
dnl #endif
dnl }]])], [:], [dnl
dnl case "$?" in
dnl 11)
dnl     echo "You appear to be using GCC version 3 or above."
dnl     __GCC3=yes
dnl     ;;
dnl esac], [__GCC3=no])
dnl fi

dnl We don't do AC_PROG_CC for SXEMACS_CC; if we can't trust these people....
: ${SXEMACS_CC:="$CC"}

dnl Figure out what C preprocessor to use.

dnl On Sun systems, people sometimes set up the variable CPP
dnl with a value that is a directory, not an executable at all.
dnl Detect that case, and ignore that value.
test -n "$CPP" -a -d "$CPP" && CPP=

test -n "$NON_GNU_CPP" -a "$GCC" != "yes" -a -z "$CPP" && CPP="$NON_GNU_CPP"

dnl --------------------------------------------------------------------
dnl Compiler feature macros
dnl --------------------------------------------------------------------


dnl --------------------------------------------------------------------
dnl Extract some information from the operating system and machine files
dnl --------------------------------------------------------------------

echo "Extracting information from the machine- and system-dependent headers..."

SXE_CHECK_MACHARCH
SXE_EXTRACT_MACHARCH_INFO

dnl s&m files shouldn't be required to define anything, or even to exist.
dnl So we default SYSTEM_TYPE to the obvious documented standard, `uname -s`,
dnl appropriately emacsulated.
if test -z "$system_type"; then
        AC_DEFINE_UNQUOTED([SYSTEM_TYPE],
                ["`uname -s | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`"],
                [Description here!])
fi

dnl If the s&m files don't define a system-specific dumper, simply use pdump.
dnl Sometime in the future, we'll remove all definitions of UNEXEC
dnl from all the s&m files.
test -z "$unexec" && with_pdump=yes

if test "$with_pdump" = "yes"; then
        ordinary_link="yes"
        ld="${ordinary_ld}"
        start_files=
        libs_standard=
        unexec=
        lib_gcc=
fi

dnl dnl For debugging...
dnl SXE_PRINT_VAR([libs_machine libs_system libs_termcap libs_standard
dnl     objects_machine objects_system c_switch_machine c_switch_system
dnl     ld_switch_machine ld_switch_system unexec ld_switch_shared
dnl     ld lib_gcc ld_text_start_addr start_files ordinary_link
dnl     have_terminfo mail_use_flock mail_use_lockf]) && echo ""

dnl bitch at build attempt on win32 machines
case "$opsys" in mingw* | cygwin*)
        SXE_DIE("Invalid operation system. Cannot build on win32 machines.")
esac

dnl Non-ordinary link usually requires -lc
test "$ordinary_link" = "no" -a -z "$libs_standard" && libs_standard="-lc"

## perform compiler specific things
SXE_DO_CC_HACKS
## machine specific extensions
SXE_CHECK_SIMD_EXTENSIONS

## some linker flags that might come in handy
SXE_CHECK_LDFLAGS

## suffices to be defined late, for instance here
SXE_CHECK_PARSER_LEXER

if test "$with_pdump" != "yes"; then
        ## GNU ld now defaults to combreloc, which screws up unexec,
        ## but not pdump.
        ## Note that it's OK if the GNU style long option causes
        ## non-GNU ld to barf a usage message, that's often good
        ## enough.  Please report it, though.
        ## #### Should make this Solaris-friendly.
        ## Link with -z nocombreloc for now.
        SXE_CHECK_LD_ZFLAG([nocombreloc])
        if test "$sxe_cv_ld__z_nocombreloc" = "yes"; then
                SXE_PREPEND_LINKER_FLAG([-z nocombreloc], [ld_switch_site])
        fi
fi

dnl Inform compiler that certain flags are meant for the linker
SXE_PROTECT_LINKER_FLAGS(ld_switch_system)
SXE_PROTECT_LINKER_FLAGS(ld_switch_machine)
SXE_PROTECT_LINKER_FLAGS(ld_switch_site)
SXE_PROTECT_LINKER_FLAGS(LDFLAGS)
SXE_PROTECT_LINKER_FLAGS(ld_call_shared)

dnl Add s&m-determined objects to link line
test -n "$objects_machine" && SXE_ADD_CORE_OBJS($objects_machine)
test -n "$objects_system"  && SXE_ADD_CORE_OBJS($objects_system)
test "$with_pdump" = "yes" && SXE_ADD_CORE_OBJS(dumper.o)


dnl Feed s&m crud to src/Makefile

dnl Linux/powerpc needs the following magic for some reason
dnl [Not needed with YellowDog 2.3 and causes link problems with YellowDog 3.0,
dnl the two most popular PowerPC distributions.]
dnl test "$machine$opsys" = "powerpclinux" && start_flags="-T $sxe_srcdir/src/ppc.ldscript"

AC_LANG(C)
if test "$unexec" = "unexaix.o"; then
dnl AIX needs various hacks to make static linking work.
  if   test "$with_dynamic" = "no"; then
  start_flags="-Wl,-bnso,-bnodelcsect"
  test "$GCC" = "yes" && start_flags="-B/bin/ ${start_flags}"
  for f in "/lib/syscalls.exp" "/lib/threads.exp"; do
    if test -r "$f"; then start_flags="${start_flags},-bI:${f}"; fi
  done
  for f in "/usr/lpp/X11/bin/smt.exp" "/usr/bin/X11/smt.exp"; do
    if test -r "$f"; then start_flags="${start_flags},-bI:${f}"; break; fi
  done
  AC_CHECK_LIB([c], [terminateAndUnload], [SXE_APPEND(-lC, libs_system)])
  fi
elif test -n "$ld_text_start_addr"; then
  start_flags="-T $ld_text_start_addr -e __start"
fi
AC_SUBST(start_flags)

AC_SUBST(ld_switch_shared)
AC_SUBST(start_files)
if test "$ordinary_link" = "no" -a "$GCC" = "yes"; then
        if test -z "$linker"; then
                linker='$(CC) -nostdlib'
                SXE_APPEND([-nostdlib], [start_flags])
        fi
        test -z "$lib_gcc" && lib_gcc='`$(CC) -print-libgcc-file-name`'
fi
test "$GCC" != "yes" && lib_gcc=
AC_SUBST(ld)
AC_SUBST(lib_gcc)



## ---------------------------------------------------------------
## Add site and system specific flags to compile and link commands
## ---------------------------------------------------------------

## compute those site prefixes
SXE_COMPUTE_SITE_PREFIXES
## compute a LD_RUN_PATH
SXE_COMPUTE_LD_RUN_PATH


## some header checks
SXE_CHECK_BASIC_HEADERS
## the very basic c types
SXE_CHECK_BASIC_TYPES

## for signalling
SXE_CHECK_SIGNALS

AC_CHECK_MEMBERS([struct stat.st_rdev])
AC_CHECK_TYPES([ptrdiff_t])

## check whether intptr_t is definied in sys/types.h
SXE_CHECK_INTPTR_T

dnl -lm is required for floating point support, among other things
AC_CHECK_FUNC([sin], [], [AC_CHECK_LIB([m], [sin])])


dnl check for Make feature
AC_PROG_MAKE_SET


dnl check for long file names
AC_SYS_LONG_FILE_NAMES
AC_SYS_LARGEFILE
AC_SYS_INTERPRETER
AC_SYS_POSIX_TERMIOS

AC_FUNC_MALLOC
AC_FUNC_MKTIME

dnl See if mkstemp is available
AC_CHECK_FUNCS([mkstemp])

SXE_CHECK_FILE_LOCK

case "$opsys" in decosf*)
        AC_CHECK_LIB([pthreads], [cma_open])
        AS_IF([test "$ac_cv_lib_pthreads_cma_open" = "yes"],
                c_switch_site="$c_switch_site -threads")
        ;;
esac


dnl ----------------------------------------------------------------
dnl Miscellaneous flags
dnl ----------------------------------------------------------------

AC_MSG_CHECKING(whether the -xildoff compiler flag is required)
if   ${CC-cc} '-###' -xildon  no_such_file.c 2>&1 | grep '^[^ ]*/ild ' > /dev/null ; then
  if ${CC-cc} '-###' -xildoff no_such_file.c 2>&1 | grep '^[^ ]*/ild ' > /dev/null ;
    then AC_MSG_RESULT(no);
    else AC_MSG_RESULT(yes); SXE_APPEND_UNDUP(-xildoff, ld_switch_site)
  fi
  else AC_MSG_RESULT(no)
fi

dnl Link with "-z ignore" on Solaris if supported
if test "$opsys" = "sol2"; then
  if test "$os_release" -ge 506; then
    AC_MSG_CHECKING(for "-z ignore" linker flag)
    case "`ld -h 2>&1`" in
      *-z\ ignore\|record* ) AC_MSG_RESULT(yes)
        SXE_PREPEND_UNDUP(-z ignore, ld_switch_site) ;;
      *) AC_MSG_RESULT(no) ;;
    esac
  fi
fi

dnl ----------------------------------------------------------------
dnl Check for Unixoid pty/process support.
dnl ----------------------------------------------------------------

dnl There is no "standard" pty allocation method.  Every system is different.
dnl  getpt()  is the preferred pty allocation method on glibc systems.
dnl _getpty() is the preferred pty allocation method on SGI systems.
dnl grantpt(), unlockpt(), ptsname() are defined by Unix98.
AC_CHECK_FUNCS([getpt _getpty grantpt unlockpt ptsname killpg tcgetpgrp])

dnl openpty() is the preferred pty allocation method on BSD and Tru64 systems.
dnl openpty() might be declared in:
dnl - pty.h (Tru64 or Linux)
dnl - libutil.h (FreeBSD)
dnl - util.h (NetBSD)
AC_CHECK_FUNC(openpty, have_openpty=yes, [
  AC_CHECK_LIB(util, openpty, have_openpty=yes need_libutil=yes)])
if test "$have_openpty" = "yes"; then
  AC_DEFINE([HAVE_OPENPTY], [1], [Description here!])
  AC_CHECK_HEADERS(libutil.h util.h, break)
  test "$need_libutil" = "yes" && SXE_APPEND(-lutil, libs_system)
fi

dnl Check for system-specific pty header files
dnl Often the TIOCSIG* symbols are hiding there.
case "$opsys" in
  dnl HPUX pty.h #defines TRUE and FALSE, so just use ptyio.h there.
  hpux*) AC_CHECK_HEADERS(sys/ptyio.h) ;;
  *) AC_CHECK_HEADERS(pty.h)
     test "$ac_cv_header_pty_h" = "no" && AC_CHECK_HEADERS(sys/pty.h)
     ;;
esac

dnl Check for STREAM support functions.
dnl Confusingly, "str" means both "string" and "SysV Streams".
AC_CHECK_HEADERS(stropts.h)
if test "$ac_cv_header_stropts_h" = "yes"; then
  AC_CHECK_FUNCS(isastream)
  AC_CHECK_HEADERS(strtio.h) dnl TIOCSIGNAL
fi

dnl Check whether the system provides getloadavg().
AC_CHECK_FUNCS(getloadavg)

if test "$ac_cv_func_getloadavg" = "yes"; then
  dnl Solaris 8 declares getloadavg() in <sys/loadavg.h>.
  dnl glibc 2.2 declares getloadavg() in <stdlib.h>...
  dnl   ...if we #define _GNU_SOURCE, which we do.
  AC_CHECK_HEADERS(sys/loadavg.h)
else
  dnl We define our own getloadavg() using lower level functions.
  SXE_ADD_CRUFT_OBJS([getloadavg.o])

  dnl Used by getloadavg() - does not require root priveleges
  AC_CHECK_LIB(kstat, kstat_open)
  AC_CHECK_HEADERS(kstat.h)

  dnl Another way to get the load average
  AC_CHECK_LIB(kvm, kvm_read)
fi

dnl If netdb.h does not declare h_errno, we must declare it by hand.
AC_MSG_CHECKING(whether netdb declares h_errno)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
  [[return h_errno;]])],
  [AC_MSG_RESULT(yes)
   AC_DEFINE([HAVE_H_ERRNO], [1], [Description here!])],
  [AC_MSG_RESULT(no)])

AC_MSG_CHECKING([for sigsetjmp])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <setjmp.h>
        ]], [[
sigjmp_buf bar;
sigsetjmp (bar, 0);
        ]])],
        [sxe_cv_c_func_sigsetjmp="yes"],
        [sxe_cv_c_func_sigsetjmp="no"])
AC_MSG_RESULT([$sxe_cv_c_func_sigsetjmp])
if test "$sxe_cv_c_func_sigsetjmp" = "yes"; then
        AC_DEFINE([HAVE_SIGSETJMP], [1], [Description here!])
        AC_DEFINE_UNQUOTED([SETJMP(x)], [sigsetjmp (x, 0)], [dnl
                We want to avoid saving the signal mask if possible, because
                that necessitates a system call.])
        AC_DEFINE_UNQUOTED([LONGJMP(x, y)], [siglongjmp(x, y)], [dnl
                Description here!])
        AC_DEFINE_UNQUOTED([JMP_BUF], [sigjmp_buf], [dnl
                Description here!])
else
        AC_DEFINE_UNQUOTED([SETJMP(x)], [setjmp(x)], [dnl
                We want to avoid saving the signal mask if possible, because
                that necessitates a system call.])
        AC_DEFINE_UNQUOTED([LONGJMP(x, y)], [longjmp(x, y)], [Description here!])
        AC_DEFINE_UNQUOTED([JMP_BUF], [jmp_buf], [Description here!])
fi


AC_MSG_CHECKING(whether localtime caches TZ)
AC_CACHE_VAL(emacs_cv_localtime_cache,
[if test "$ac_cv_func_tzset" = "yes"; then
AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
#if STDC_HEADERS
# include <stdlib.h>
#endif
extern char **environ;
unset_TZ ()
{
  char **from, **to;
  for (to = from = environ; (*to = *from); from++)
    if (! (to[[0]][[0]] == 'T' && to[[0]][[1]] == 'Z' && to[[0]][[2]] == '='))
      to++;
}
char TZ_GMT0[[]] = "TZ=GMT0";
char TZ_PST8[[]] = "TZ=PST8";
main()
{
  time_t now = time ((time_t *) 0);
  int hour_GMT0, hour_unset;
  if (putenv (TZ_GMT0) != 0)
    exit (1);
  hour_GMT0 = localtime (&now)->tm_hour;
  unset_TZ ();
  hour_unset = localtime (&now)->tm_hour;
  if (putenv (TZ_PST8) != 0)
    exit (1);
  if (localtime (&now)->tm_hour == hour_GMT0)
    exit (1);
  unset_TZ ();
  if (localtime (&now)->tm_hour != hour_unset)
    exit (1);
  exit (0);
}]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
[# If we have tzset, assume the worst when cross-compiling.
emacs_cv_localtime_cache=yes])
else
        # If we lack tzset, report that localtime does not cache TZ,
        # since we can't invalidate the cache if we don't have tzset.
        emacs_cv_localtime_cache=no
fi],[:])dnl
AC_MSG_RESULT($emacs_cv_localtime_cache)
if test $emacs_cv_localtime_cache = yes; then
  AC_DEFINE([LOCALTIME_CACHE], [1], [Description here!])
fi


need_alloca_c=no
dnl HP-UX has a working alloca in libPW.
dnl case "${GCC}${opsys}" in hpux* )
dnl  AC_CHECK_FUNC(alloca, [:], [AC_CHECK_LIB(PW, alloca)])
dnl esac

dnl AC_FUNC_ALLOCA doesn't know about DEC C's #pragma intrinsic(alloca)
if test "$__DECC" != "yes"; then
        AC_FUNC_ALLOCA
        if test -n "$ALLOCA"; then
                SXE_ADD_CRUFT_OBJS([$ALLOCA])
                need_alloca_c=yes
        fi
fi

AC_MSG_CHECKING(for working alloca in function calls)
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#if defined (__GNUC__)
#define alloca __builtin_alloca
#elif defined (__DECC)
#include <alloca.h>
#pragma intrinsic(alloca)
#elif defined (HAVE_ALLOCA_H)
#include <alloca.h>
#elif defined (_AIX)
#pragma alloca
#elif ! defined (alloca)
#ifdef C_ALLOCA
#define alloca xemacs_c_alloca
#else
void *alloca ();
#endif /* C_ALLOCA */
#endif /* !defined (alloca) */

void
f1 (double a, void *ptr, int b)
{
  unsigned char *ptr2 = (unsigned char *) ptr;
  if (ptr2[[0]] != 0xBF || ptr2[[1]] != 0xBF || ptr2[[3000]] != 0xBF)
    exit (1);
  if (a != 3.1415 || b != -5490)
    exit (1);
}

int
f2 (short c, void *ptr, long e)
{
  unsigned char *ptr2 = (unsigned char *) ptr;
  if (ptr2[[0]] != 0xFB || ptr2[[1]] != 0xFB || ptr2[[1000]] != 0xFB)
    exit (1);
  if (c != 665 || e != 776776776)
    exit (1);
  f1 (3.1415, memset (alloca (3001), 0xBF, 3001), -5490);
  return 42;
}

int
main (int argc, char *argv[])
{
  if (f2 (665, memset (alloca (1001), 0xFB, 1001), 776776776) != 42)
    return 1;
  return 0;
}
]])], working_alloca_in_function_calls=yes, working_alloca_in_function_calls=no,
working_alloca_in_function_calls=no)
AC_MSG_RESULT($working_alloca_in_function_calls)
test "$working_alloca_in_function_calls" != "yes" && \
  AC_DEFINE([BROKEN_ALLOCA_IN_FUNCTION_CALLS], [1], [Description here!])

AM_CONDITIONAL([NEED_ALLOCA_C], [
        test "$working_alloca_in_function_calls" = "yes" && \
        test "$need_alloca_c" = "yes"])

dnl Check whether strcoll exists and works correctly. (This does more
dnl than just check for its existence.) If so, it defines HAVE_STRCOLL.
AC_FUNC_STRCOLL

dnl If `getpgrp' takes no argument (the POSIX.1 version), define
dnl `GETPGRP_VOID'.  Otherwise, it is the BSD version, which takes a
dnl process ID as an argument.
AC_CHECK_FUNCS(getpgrp)
AC_FUNC_GETPGRP

dnl We used to call AC_FUNC_MMAP here
dnl Instead we now use following, suggested by Neal Becker
AC_MSG_CHECKING(for working mmap)
case "$opsys" in ultrix* ) have_mmap=no ;; *)
AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>

#ifndef MAP_VARIABLE
#define MAP_VARIABLE 0
#endif

#ifndef MAP_FAILED
#define MAP_FAILED -1
#endif

int main (int argc, char *argv[])
{
  int fd = -1;
  caddr_t p;
#ifndef MAP_ANONYMOUS
  fd = open ("/dev/zero", O_RDWR);
  if (fd < 0)
    return 1;
#define MAP_ANONYMOUS 0
#endif
  if (mmap(0, 1024, PROT_READ | PROT_WRITE,
           MAP_PRIVATE | MAP_VARIABLE | MAP_ANONYMOUS,
           fd, 0) != (void *) MAP_FAILED)
    return 0;
  perror ("conftest: mmap failed");
  return 1;
}]])], have_mmap=yes, have_mmap=no, have_mmap=no) ;;
esac
AC_MSG_RESULT($have_mmap)
test "$have_mmap" = "yes" && AC_DEFINE([HAVE_MMAP], [1], [Description here!])

dnl rel_alloc requires either GNU malloc or system malloc with mmap
dnl We only turn rel_alloc on by default if mmap is available.
test "$GNU_MALLOC" != "yes" -a "$have_mmap" != "yes" && with_rel_alloc=no
if test "$with_rel_alloc $have_mmap" = "default yes"; then
        if test "$doug_lea_malloc" = "yes"; then
                dnl Check if malloc() calls mmap(), making rel_alloc pointless.
                AC_MSG_CHECKING(for M_MMAP_THRESHOLD)
                AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <malloc.h>]],[[
#ifndef M_MMAP_THRESHOLD
#error No M_MMAP_THRESHOLD :-(
!@+$%^&*_)(_ - unlikely to compile...
#endif
                        ]])], [
                        with_rel_alloc=no
                        AC_MSG_RESULT(yes)], [
                        with_rel_alloc=yes
                        AC_MSG_RESULT(no)])
        else
                with_rel_alloc=yes
        fi
fi
if test "$with_rel_alloc" = "yes"; then
        AC_DEFINE([REL_ALLOC], [1], [Description here!])
        SXE_ADD_MEMALLOC_OBJS(ralloc.o)
fi

dnl Check for tests/rminal I/O variants
dnl TERMIOS systems may have termio.h, but not vice-versa, I think.
AC_CHECK_HEADER(termios.h,
  AC_DEFINE([HAVE_TERMIOS], [1], [Description here!])
  AC_DEFINE([SIGNALS_VIA_CHARACTERS], [1], [Description here!])
  AC_DEFINE([NO_TERMIO], [1], [Description here!]),
  [AC_CHECK_HEADER(termio.h, [AC_DEFINE([HAVE_TERMIO], [1], [Description here!])])])


dnl Check for directory variants
AC_CHECK_HEADER(dirent.h, [AC_DEFINE([SYSV_SYSTEM_DIR], [1], [Description here!])],
  [AC_CHECK_HEADER(sys/dir.h, , [AC_DEFINE([NONSYSTEM_DIR_LIBRARY], [1], [Description here!])])])

dnl check for readdir64_r (the reentrant version of readdir64)
AC_CHECK_FUNC(readdir64_r, [AC_DEFINE([HAVE_LARGEFILE], [1], [Description here!])])

dnl Check for nlist.h
AC_CHECK_HEADER([nlist.h], [AC_DEFINE([NLIST_STRUCT], [1], [Description here!])], [])

dnl firstly check for pthread support so that we can use the
dnl asynchronous playing routines

dnl special pthread handling
dnl AIX uses pthreads instead of pthread, and HP/UX uses cma
dnl FreeBSD uses -pthread
AC_CHECK_LIB(pthread, pthread_create)
if test "${ac_cv_lib_pthread_pthread_create}" = "yes"; then
        have_threads=yes

        SXE_CHECK_COMPILER_FLAGS([-pthreads])
        SXE_CHECK_COMPILER_FLAGS([-pthread])
        if test "${sxe_cv_c_flags__pthreads}" = "yes"; then
                SXE_PREPEND_UNDUP([-pthreads], [c_switch_site])
        fi
        if test "${sxe_cv_c_flags__pthread}" = "yes"; then
                SXE_PREPEND_UNDUP([-pthread], [c_switch_site])
        fi
        SXE_PREPEND([-lpthread], [MM_LIBS])
fi

dnl test for AIX pthreads
AC_CHECK_LIB(pthreads, pthread_create)
if test $ac_cv_lib_pthreads_pthread_create = yes; then
  have_threads=yes
  SXE_PREPEND(-lpthreads, MM_LIBS)
fi

dnl test for HPUX cma threads.
AC_CHECK_LIB(cma, pthread_create)
if test $ac_cv_lib_cma_pthread_create = yes; then
  have_threads=yes
  SXE_PREPEND(-lcma, MM_LIBS)
fi

dnl FreeBSD -pthread check
AC_DEFUN([AC_PTHREAD_FREEBSD],
[AC_MSG_CHECKING([if we need -pthread for threads])
AC_CACHE_VAL(ac_cv_ldflag_pthread,
        [ac_save_ld_switch_site="$ld_switch_site"
        ld_switch_site="-pthread $ld_switch_site"
        AC_LINK_IFELSE([AC_LANG_PROGRAM([[char pthread_create();]],
        [[char pthread_create();]])],
        eval "ac_cv_ldflag_pthread=yes",
        eval "ac_cv_ldflag_pthread=no"),
        ld_switch_site="$ac_save_ld_switch_site"
])
if eval "test \"`echo $ac_cv_ldflag_pthread`\" = yes"; then
        AC_MSG_RESULT(yes)
        have_threads=yes
        SXE_PREPEND_UNDUP("-pthread", ld_switch_site)
        SXE_PREPEND_UNDUP("-D_THREAD_SAFE", c_switch_site)
else
        AC_MSG_RESULT(no)
fi])

dnl If all other thread tests fail, try BSD's -pthread
if test "$have_threads" != yes; then
  AC_PTHREAD_FREEBSD
fi

if test "$have_threads" = yes; then
  AC_DEFINE([HAVE_THREADS], [1], [Description here!])
fi


## Internal Options
## ================

echo
echo "Internal Options"
echo "================"

SXE_CHECK_LIBTOOL
SXE_CHECK_LIBLTDL

dnl ----------------------------------------------------------------
dnl Check for POSIX functions.
dnl ----------------------------------------------------------------

SXE_CHECK_BASIC_FUNS
AC_CHECK_FUNCS([alarm cbrt closedir dup2 eaccess endpwent floor fmod fpathconf frexp fsync ftime ftruncate getaddrinfo getcwd gethostbyname gethostname getnameinfo getpagesize getrlimit gettimeofday getwd isascii isatty link logb lrand48 matherr memchr memmove memset mkdir mktime munmap perror poll pow putenv random re_comp readlink regcomp rename res_init rint rmdir select setitimer setlocale setpgid setsid sigblock sighold sigprocmask snprintf socket sqrt stpcpy strncpy strncat strcasecmp strchr strdup strerror strlwr strrchr strspn strtol strupr symlink ttyname tzset ulimit umask uname usleep utime vlimit vsnprintf waitpid wcscmp wcslen])

AS_IF([test "$have_isatty" = "yes"],
        AC_DEFINE([HAVE_ISATTY], [1], [isatty is available]))
AS_IF([test "$have_ttyname" = "yes"],
        AC_DEFINE([HAVE_TTYNAME], [1], [ttyname is available]))


## combines all these time structures and funs
SXE_CHECK_METRONOME
SXE_CHECK_SUFFICIENCY([metronome], [metronome])

## check for a sane dirname/realpath
SXE_CHECK_DIRNAME
SXE_CHECK_REALPATH

dnl -----------------------------------
dnl Do some misc autoconf-special tests
dnl -----------------------------------

dnl Do the opsystem or machine files prohibit the use of the GNU malloc?
dnl Assume not, until told otherwise.
GNU_MALLOC=yes
if test "$with_dlmalloc" != "no"; then
        doug_lea_malloc=yes
else
        doug_lea_malloc=no
fi
after_morecore_hook_exists=yes
AC_CHECK_FUNC(malloc_set_state, ,doug_lea_malloc=no)
AC_MSG_CHECKING(whether __after_morecore_hook exists)
AC_LINK_IFELSE([AC_LANG_SOURCE([
        [extern void (* __after_morecore_hook)();]
        [main() {__after_morecore_hook = 0;}]
        ])],
  [AC_MSG_RESULT(yes)],
  [AC_MSG_RESULT(no)
   after_morecore_hook_exists=no])
if test "$after_morecore_hook_exists" = "yes" ; then
   AC_DEFINE([HAVE_MORECORE_HOOK], [1], [Define if __after_morecore_hook is available])
fi
AC_SUBST(HAVE_MORECORE_HOOK)
free_hook_exists=yes
AC_MSG_CHECKING(whether __free_hook exists)
AC_LINK_IFELSE([AC_LANG_SOURCE([
        [extern void (* __free_hook)();]
        [main() {__free_hook = 0;}]
        ])],
  [AC_MSG_RESULT(yes)],
  [AC_MSG_RESULT(no)
   free_hook_exists=no])
if test "$free_hook_exists" = "yes" ; then
   AC_DEFINE([HAVE_FREE_HOOK], [1], [Define if __free_hook is available])
fi
AC_SUBST(HAVE_FREE_HOOK)
if test "$system_malloc" = "yes" ; then
  GNU_MALLOC=no
  GNU_MALLOC_reason="
    - The GNU allocators don't work with this system configuration."
elif test "$with_system_malloc" = "yes" ; then
  GNU_MALLOC=no
  GNU_MALLOC_reason="
    - User chose not to use GNU allocators."
elif test "$with_debug_malloc" = "yes" ; then
  GNU_MALLOC=no
  GNU_MALLOC_reason="
    - User chose to use Debugging Malloc."
fi

if test "$doug_lea_malloc" = "yes" -a "$GNU_MALLOC" = "yes" ; then
        GNU_MALLOC_reason="
    - Using Doug Lea's new malloc from the GNU C Library."
        AC_DEFINE([DOUG_LEA_MALLOC], [1], [Description here!])
        if test "$after_morecore_hook_exists" = "no" ; then
                GNU_MALLOC_reason="
    - Using Doug Lea's new malloc from the Linux C Library."
        AC_DEFINE([_NO_MALLOC_WARNING_], [1], [Description here!])
        fi
fi
AM_CONDITIONAL([USE_MEMALLOC], [test -n "${libmemalloc_objs}"])

dnl #### mcheck is broken in all versions of Linux libc and glibc.
dnl Try this again when 2.1 hits the streets.
dnl Avoid using free-hook.c if support exists for malloc debugging in libc
have_libmcheck=no
if test "$with_error_checking_malloc" = "yes" -a \
   "$have_glibc" = "yes" -a \
   "$doug_lea_malloc" = "yes"; then
        AC_CHECK_HEADERS(mcheck.h)
        AC_CHECK_LIB(mcheck, mcheck, [have_libmcheck=yes], [have_libmcheck=no])
fi

if test "$with_module_support" != "no"; then
        AS_MESSAGE([checking for module support])
        if test "$sxe_cv_feat_libltdl" = "yes"; then
                have_module_support="yes"
                with_module_support="yes"
                SXE_ADD_CRUFT_OBJS([emodules-ng.o])
                AC_DEFINE([HAVE_EMODULES], [1], [Whether emods would be available])
                AC_DEFINE([WITH_EMODULES], [1], [Whether emods shall be available])
        else
                have_module_support="no"
                AC_DEFINE([WITH_EMODULES], [1], [Whether emods shall be available])
        fi
fi

AM_CONDITIONAL([DESCEND_MODULES],
        [test "$with_module_support $have_module_support" = "yes yes"])
if test "$with_module_support $have_module_support" = "yes"; then
        SXE_APPEND([src], [MAKE_SUBDIR])
        SXE_APPEND([src], [INSTALL_ARCH_DEP_SUBDIR])
        SXE_APPEND([modules], [MAKE_AM_SUBDIR])
        SXE_APPEND([modules], [SRC_SUBDIR_DEPS])
dnl else
dnl     MOD_CC="$SXEMACS_CC"
dnl     MODCFLAGS="\$(SXE_CFLAGS) -I../../src -I\$(sxe_srcdir)/../../src"
dnl     INSTALLPATH=""
dnl     MOD_INSTALL_PROGRAM="true"
dnl     OBJECT_TO_BUILD="\$(MODNAME).o"
fi

if test "$with_modules_ase" = "yes"; then
        have_modules_ase=yes
fi
if test "$with_static_modules_ase" = "yes"; then
        have_static_modules_ase=yes
fi
SXE_EMOD_STATMOD([ase])
if test "$have_modules_ase $have_static_modules_ase" != " "; then
        have_ase_cart="yes"
        have_ase_dig="yes"
        have_ase_intv="yes"
        have_ase_metric="yes"
        have_ase_nbhood="yes"
        have_ase_perm="yes"
        have_ase_resclass="yes"
fi
if test "$have_bison" = "yes"; then
        if test "$with_modules_cl" = "yes" ; then
                have_modules_cl="yes"
        fi
        if test "$with_static_modules_cl" = "yes"; then
                have_static_modules_cl="yes"
        fi
else
        if test "$with_modules_cl" = "yes" -o "$with_static_modules_cl" = "yes"; then
                AC_MSG_WARN([Sorry no bison means no cl module for you.])
        fi
fi

SXE_EMOD_STATMOD([cl])

dnl D-Bus
dnl SXE_CHECK_DBUS
dnl if test "$have_dbus" = "yes"; then
dnl     if test "$with_modules_dbus" = "yes"; then
dnl             have_modules_dbus=yes
dnl     fi
dnl     if test "$with_static_modules_dbus" = "yes"; then
dnl             have_static_modules_dbus=yes
dnl     fi
dnl else
dnl     AC_MSG_WARN([I cannot believe you do not have d-bus.])
dnl fi

dnl SXE_EMOD_STATMOD([dbus])

AM_CONDITIONAL([AUTARKIC], [test "0" = "1"])
MODARCHDIR=
MAKE_DOCFILE="$sxe_blddir/lib-src/make-docfile"
ELLMAKEDOC=$MAKE_DOCFILE
ELLCC=$MOD_CC
AC_SUBST(ELLCC)
AC_SUBST(ELLMAKEDOC)
AC_SUBST(with_modules, $with_modules)
AC_SUBST(MOD_CC)
AC_SUBST(MODARCHDIR)
AC_SUBST(MAKE_DOCFILE)
AC_SUBST(MODCFLAGS)
AC_SUBST(INSTALLPATH)
AC_SUBST(MOD_INSTALL_PROGRAM)
AC_SUBST(OBJECT_TO_BUILD)
SXE_SUBST_STATMOD_A

## FFI support
SXE_CHECK_FFI
SXE_CHECK_SUFFICIENCY([ffi], [FFI support], [
        ## additional actions
        AC_DEFINE([HAVE_LIBFFI], [1], [Description here!])
        HAVE_LIBFFI=yes
        FFI_LIBS="-lffi"
        SXE_ADD_CRUFT_OBJS([effi.o])
])

## ENT support
SXE_CHECK_ENT

## check for pseudo gaussian numbers
AC_MSG_CHECKING([for pseug (gaussian numbers)])
if test "$sxe_cv_feat_gmp" = "yes"; then
        ## the good case
        AC_DEFINE([HAVE_PSEUG], [1], [Whether we COULD do gaussian numbers!])
        sxe_cv_feat_pseug="yes"
else
        sxe_cv_feat_pseug="no"
fi
AC_MSG_RESULT([$sxe_cv_feat_pseug])

## check for pseudo complex numbers
AC_MSG_CHECKING([for pseuc (pseudo complex numbers)])
if test "$sxe_cv_feat_mpfr" = "yes"; then
        ## the good case
        AC_DEFINE([HAVE_PSEUC], [1], [Whether we COULD do complex numbers!])
        sxe_cv_feat_pseuc="yes"
else
        sxe_cv_feat_pseuc="no"
fi
AC_MSG_RESULT([$sxe_cv_feat_pseuc])

## check for pseudo quaternions
AC_MSG_CHECKING([for quatern (quaternion numbers)])
if test "$sxe_cv_feat_gmp" = "yes"; then
        ## the good case
        AC_DEFINE([HAVE_QUATERN], [1], [Whether we COULD do quaternions!])
        sxe_cv_feat_quatern="yes"
else
        sxe_cv_feat_quatern="no"
fi
AC_MSG_RESULT([$sxe_cv_feat_quatern])


## go through what the PH^Wuser has specified
## it's a wee bit more complex, so let's go for it
## we use a dijkstra-if
ent_dijkstra="$with_ent_gmp $sxe_cv_feat_gmp"
if test "$ent_dijkstra" = "yes yes"; then
        AC_DEFINE([WITH_GMP], [1], [Whether GMP support was desired!])
        SXE_PREPEND([$GMP_LIBS], [ENT_LIBS])
        SXE_ADD_ENT_OBJS([ent-gmp.o])
        have_ent_gmp="yes"
elif test "$ent_dijkstra" = "yes no"; then
        ## pity, we wanted GMP but we dont have it
        AC_DEFINE([WITH_GMP], [1], [Whether GMP support was desired!])
        have_ent_gmp="no"
elif test "$ent_dijkstra" = "no yes"; then
        ## we didn't want GMP but we have it
        ## do nothing in that case
        have_ent_gmp="no"
elif test "$ent_dijkstra" = "no no"; then
        ## great, we didnt opt for GMP and we're lucky, it's not there either
        have_ent_gmp="no"
fi

## evaluate mpfr results
ent_dijkstra="$with_ent_mpfr $sxe_cv_feat_mpfr"
if test "$ent_dijkstra" = "yes yes"; then
        ## the good case
        AC_DEFINE([WITH_MPFR], [1], [Description here!])
        SXE_PREPEND([$MPFR_LIBS], [ENT_LIBS])
        SXE_ADD_ENT_OBJS([ent-mpfr.o])
        have_ent_mpfr="yes"
elif test "$ent_dijkstra" = "yes no"; then
        ## we want but can't have
        AC_DEFINE([WITH_MPFR], [1], [Description here!])
        have_ent_mpfr="no"
elif test "$ent_dijkstra" = "no yes"; then
        have_ent_mpfr="no"
elif test "$ent_dijkstra" = "no no"; then
        have_ent_mpfr="no"
fi


## whether to enable gaussian numbers
ent_dijkstra="$with_ent_pseug $sxe_cv_feat_pseug"
if test "$ent_dijkstra" = "yes yes"; then
        ## perfick
        AC_DEFINE([WITH_PSEUG], [1], [Description here!])
        SXE_PREPEND([$GMP_LIBS], [ENT_LIBS])
        SXE_ADD_ENT_OBJS([ent-gaussian.o])
        have_ent_pseug="yes"
elif test "$ent_dijkstra" = "yes no"; then
        ## grrrr
        AC_DEFINE([WITH_PSEUG], [1], [Description here!])
        have_ent_pseug="no"
elif test "$ent_dijkstra" = "no yes"; then
        have_ent_pseug="no"
elif test "$ent_dijkstra" = "no no"; then
        have_ent_pseug="no"
fi

## whether to enable emulated complex numbers
ent_dijkstra="$with_ent_pseuc $sxe_cv_feat_pseuc $with_ent_mpc $sxe_cv_feat_mpc"
if test "$ent_dijkstra" = "yes yes yes yes"; then
        ## skip pseuc usage
        have_ent_pseuc="veto"
        AC_DEFINE([WITH_PSEUC], [1], [Description here!])
        AS_MESSAGE([ENT: Built-in support for complex numbers available, dnl
but omitted in favour of MPC.])
        omit_ent_pseuc_in_favour_of="mpc"
        ## set up to use plain mpc
        AC_DEFINE([WITH_MPC], [1], [Description here!])
        SXE_PREPEND([$MPC_LIBS], [ENT_LIBS])
        SXE_ADD_ENT_OBJS([ent-mpc.o])
        have_ent_mpc="yes"
elif test "$ent_dijkstra" = "yes yes yes no"; then
        ## user planned to use mpc, hasnt got it though
        ## now he's cursed with pseudo complex numbers :)
        AC_DEFINE([WITH_PSEUC], [1], [Description here!])
        have_ent_pseuc="yes"
        SXE_PREPEND([$MPFR_LIBS], [ENT_LIBS])
        SXE_ADD_ENT_OBJS([ent-pseumpc.o])
        ## we want mpc but can't have, set up that
        AC_DEFINE([WITH_MPC], [1], [Description here!])
        have_ent_mpc="no"
elif test "$ent_dijkstra" = "yes yes no yes"; then
        ## user coulda used mpc but disabled it for whatever reasons ... Wait!
        ## Horst, is that you?!
        AC_DEFINE([WITH_PSEUC], [1], [Description here!])
        AS_MESSAGE([ENT: dnl
MPC support for complex numbers IS possible, however YOU think you want dnl
the built-in emulated stuff?  Seriously?  Good, so be it!])
        SXE_PREPEND([$MPFR_LIBS], [ENT_LIBS])
        SXE_ADD_ENT_OBJS([ent-pseumpc.o])
        have_ent_pseuc="yes"
        omit_ent_mpc_in_favour_of="pseuc"
        ## however brag that we have mpc
        have_ent_mpc="yes"
elif test "$ent_dijkstra" = "yes yes no no"; then
        AC_DEFINE([WITH_PSEUC], [1], [Description here!])
        have_ent_pseuc="yes"
        SXE_PREPEND([$MPFR_LIBS], [ENT_LIBS])
        SXE_ADD_ENT_OBJS([ent-pseumpc.o])
        have_ent_mpc="no"
elif test "$with_ent_pseuc $sxe_cv_feat_pseuc" = "yes no"; then
        AC_DEFINE([WITH_PSEUC], [1], [Description here!])
        have_ent_pseuc="no"
elif test "$with_ent_pseuc $sxe_cv_feat_pseuc" = "no yes"; then
        have_ent_pseuc="no"
elif test "$with_ent_pseuc $sxe_cv_feat_pseuc" = "no no"; then
        have_ent_pseuc="no"
fi

## whether to enable gaussian numbers
ent_dijkstra="$with_ent_quatern $sxe_cv_feat_quatern"
if test "$ent_dijkstra" = "yes yes"; then
        ## perfick
        AC_DEFINE([WITH_QUATERN], [1], [Description here!])
        SXE_PREPEND([$GMP_LIBS], [ENT_LIBS])
        SXE_ADD_ENT_OBJS([ent-quatern.o])
        have_ent_quatern="yes"
elif test "$ent_dijkstra" = "yes no"; then
        ## grrrr
        AC_DEFINE([WITH_QUATERN], [1], [Description here!])
        have_ent_quatern="no"
elif test "$ent_dijkstra" = "no yes"; then
        have_ent_quatern="no"
elif test "$ent_dijkstra" = "no no"; then
        have_ent_quatern="no"
fi

## elliptic curve support
ent_dijkstra="$with_ent_ecm $sxe_cv_feat_ecm"
if test "$ent_dijkstra" = "yes yes"; then
        ## perfick case
        AC_DEFINE([WITH_ECM], [1], [Description here!])
        SXE_PREPEND([$ECM_LIBS], [ENT_LIBS])
        SXE_ADD_ENT_OBJS([ent-ecm.o])
        have_ent_ecm="yes"
elif test "$ent_dijkstra" = "no yes"; then
        have_ent_ecm="no"
elif test "$ent_dijkstra" = "yes no"; then
        AC_DEFINE([WITH_ECM], [1], [Description here!])
        have_ent_ecm="no"
elif test "$ent_dijkstra" = "no no"; then
        have_ent_ecm="no"
fi


## Floating operation support is now unconditional
SXE_CHECK_MATHS_VALUES
if test "$ac_cv_sizeof_long_double" != 0; then
        ##AC_DEFINE_UNQUOTED([fpfloat], [long double], [Description here!])
        ##AC_DEFINE([fpfloat_long_double_p], [1], [Description here!])
        fpfloat="long double"
        fpfloat_long_double_p=1
        have_fpfloat=yes
elif test "$ac_cv_sizeof_double" != 0; then
        ##AC_DEFINE_UNQUOTED([fpfloat], [double], [Description here!])
        ##AC_DEFINE([fpfloat_double_p], [1], [Description here!])
        fpfloat="double"
        fpfloat_double_p=1
        have_fpfloat=yes
else
        AS_MESSAGE([Uh oh, no float type is bad news.])
        have_fpfloat=no
fi

AC_MSG_CHECKING([if need to add -lm])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <math.h>
]],[[
return sin(0.0);
]])], [AC_MSG_RESULT([no])], [
        AC_MSG_RESULT([maybe])
        save_LIBS=$LIBS
        SXE_APPEND([-lm], [LIBS])
        AC_MSG_CHECKING([if can add -lm])
        AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <math.h>
]],[[
return sin(0.0);
]])], [AC_MSG_RESULT([yes])], [
        AC_MSG_RESULT([no])
        AC_MSG_WARN([No way to use math functions found. Reverting option append.])
        LIBS=$save_LIBS])])



AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <math.h>
]],[[
return atanh(1.0) + asinh(1.0) + acosh(1.0);
]])], [AC_DEFINE([HAVE_INVERSE_HYPERBOLIC], [1], [Description here!])])

if test "$have_fpfloat" = "yes"; then
        AC_DEFINE([HAVE_FPFLOAT], [1], [Description here!])

        SXE_CHECK_CLEAN_FLOATOPS(
                [have_clean_floatops="yes"], [have_clean_floatops="no"])

        ## it would seem odd to define the destiny of our float arithmetic here
        if test "$have_clean_floatops" = "yes"; then
                AC_DEFINE_UNQUOTED([fpfloat], [$fpfloat], [Description here!])
                AC_DEFINE_UNQUOTED([fpfloat_long_double_p],
                        [${fpfloat_long_double_p:-0}], [Description here!])
                AC_DEFINE_UNQUOTED([fpfloat_double_p],
                        [${fpfloat_double_p:-0}], [Description here!])
        else
                AS_MESSAGE([downgrading to `double' floats])
                AC_DEFINE_UNQUOTED([fpfloat], [double], [Description here!])
                AC_DEFINE_UNQUOTED([fpfloat_long_double_p],
                        [0], [Description here!])
                AC_DEFINE([fpfloat_double_p],
                        [1], [Description here!])
        fi
fi

## trivial checks, you cannot (yet) turn off internal arithmetic entirely
## so we always `have' it
dnl with_ent_int=yes
have_ent_int=yes
dnl with_ent_indef=yes
have_ent_indef=yes
dnl with_ent_fpfloat=yes
have_ent_fpfloat=yes
dnl we attempt to always use ent.o
AC_DEFINE([WITH_NUMBER_TYPES], [1], [Description here!])
SXE_SUBST_ENT_OBJS

dnl experimental code support
if test "$with_compre" != "no"; then
        AC_MSG_CHECKING([if compre prerequisites are met])
        AC_MSG_RESULT([yes])
        AC_DEFINE([EF_USE_COMPRE], [1],
                [Whether to provide compiled regular expression!])
        have_compre=yes
fi
if test "$with_experimental_features_pom" = "yes"; then
        AC_MSG_CHECKING([if pom prerequisites are met])
        if test "$have_threads" = "yes"; then
                AC_MSG_RESULT([yes])
                AC_DEFINE([EF_USE_POM], [1],
                        [Whether to protect all lisp objects with mutexes!])
                have_experimental_features_pom=yes
        else
                AC_MSG_RESULT([no])
        fi
fi
if test "$with_experimental_features_asyneq" = "yes"; then
        AC_MSG_CHECKING([if asyneq prerequisites are met])
        if test "$have_threads" = "yes"; then
                AC_MSG_RESULT([yes])
                AC_DEFINE([EF_USE_ASYNEQ], [1],
                        [Whether to setup asynchronous event queues!])
                have_experimental_features_asyneq=yes
                SXE_ADD_EVENTS_OBJS([event-queue.o workers.o worker-asyneq.o])
        else
                AC_MSG_RESULT([no])
        fi
fi
SXE_SUBST_EVENTS_OBJS

SXE_CHECK_EVENTS
SXE_CHECK_SUFFICIENCY([events], [event system])

## check asm helpers
SXE_CHECK_ASM_HELPERS

## compression titbits
SXE_CHECK_ZLIB
SXE_CHECK_BZLIB
SXE_CHECK_LZMA


## Cryptography Options
## ====================
echo
echo "Cryptography Options"
echo "===================="

## in case someone else (ldap, pgsql, etc.) needs it
SXE_CHECK_OPENSSL
SXE_CHECK_SUFFICIENCY([openssl], [OpenSSL support])

dnl OpenSSL
if test "$with_openssl" != "no" -a "$have_openssl" = "yes"; then
        SXE_ADD_CRUFT_OBJS([openssl.o])
elif test "$with_openssl" != "no"; then
        AC_MSG_WARN([Required OpenSSL support cannot be provided.])
        AC_MSG_WARN([Check --with-site-prefixes.])
fi
if test "$have_openssl" = "no" -o "$with_openssl" = "no"; then
        OPENSSL_CPPFLAGS=""
        OPENSSL_LDFLAGS=""
        OPENSSL_LIBS=""
fi
AC_SUBST([OPENSSL_CPPFLAGS])
AC_SUBST([OPENSSL_LDFLAGS])
AC_SUBST([OPENSSL_LIBS])

SXE_CHECK_KERBEROS
SXE_CHECK_KERBEROS5
if test "$with_kerberos" = "yes"; then
        AC_DEFINE([WITH_KERBEROS], [1], [Whether kerberos support was requested])
        if test "$sxe_cv_feat_kerberos" = "yes"; then
                SXE_PREPEND([$KERBEROS_LIBS], [ld_libs_general])
        fi
fi


## Networking Options
## ==================
echo
echo "Networking Options"
echo "=================="

SXE_CHECK_SOCKETS
SXE_CHECK_SUFFICIENCY([unix], [unix domain sockets])
SXE_CHECK_SUFFICIENCY([sysvipc], [SysV IPC message])
SXE_CHECK_SUFFICIENCY([sockets], [tcp/udp sockets])
SXE_CHECK_SUFFICIENCY([tcpudp], [tcp/udp sockets])
SXE_CHECK_SUFFICIENCY([multicast], [multicast])

dnl Decnet
if test "$with_dnet" = "yes"; then
  AC_CHECK_LIB(dnet, main,
    [AC_DEFINE([HAVE_LIBDNET], [1], [Description here!])],
    [SXE_DIE("DECnet requested but can't find libdnet")])
fi

dnl Socks support
if test "$with_socks" = "yes"; then
  AC_CHECK_LIB(socks, SOCKSinit)
  test -n "$ac_cv_lib_socks_SOCKSinit" && AC_DEFINE([HAVE_SOCKS], [1], [Description here!])
fi


## Window System Features
## ======================
echo
echo "Window System Features"
echo "======================"

dnl ----------------------
dnl Choose a window system
dnl ----------------------

AS_MESSAGE([checking for specified window system])

if test "$with_x" != "no"; then
        if test "$with_x11" != "no"; then
                dnl User-specified --x-includes or --x-libraries implies --with-x11.
                test "$x_includes $x_libraries" != "NONE NONE" && \
                        window_system=x11
                        with_x11=yes
        fi

        dnl Autodetection of X11 libraries and includes
        dnl -------------------------------------------
        dnl AC_PATH_XTRA thinks it can find our X headers and includes, but
        dnl it often gets it wrong, so we only use it as a last resort.

        dnl $OPENWINHOME implies --x-includes and --x-libraries
        dnl Not (yet) handled by autoconf2
        if test "$x_includes $x_libraries" = "NONE NONE" \
                -a -n "$OPENWINHOME" \
                -a "$OPENWINHOME" != "/usr/openwin" \
                -a -d "$OPENWINHOME"; then
                test -d "$OPENWINHOME/lib"           && \
                        x_libraries="$OPENWINHOME/lib"
                test -d "$OPENWINHOME/include"       && \
                        x_includes="$OPENWINHOME/include"
                test -d "$OPENWINHOME/share/include" && \
                        x_includes="$OPENWINHOME/share/include"
        fi

        if test -z "$x_includes" -o \
           "$x_includes" = "NONE" -o \
           ! -d "$x_includes"; then
                dnl AC_PATH_XTRA often guesses /usr/include, when some other
                dnl include directory is a MUCH better guess (Linux, HP-UX 10.20).
                dnl This is a workaround for idiot (esp. HP) system vendors, who
                dnl provide a /usr/include/X11, but DON'T FULLY POPULATE IT.
                for dir in "/usr/X11" "/usr/X11R7" "/usr/X11R6" \
                        "/usr/local" "/usr"; do
                        if test -d "$dir/include/X11"; then
                                x_includes="$dir/include"
                                break
                        fi
                done
        fi

        if test -z "$x_libraries" -o \
           "$x_libraries" = "NONE" -o \
           ! -d "$x_libraries"; then
                for dir in \
                        "/usr/X11/lib" \
                        "/usr/X11R7/lib" "/usr/lib/X11R7" \
                        "/usr/X11R6/lib" "/usr/lib/X11R6" \
                        "/usr/local/lib" "/usr/local/lib/X11" \
                        "/usr/lib" "/usr/lib/X11"; do
                        if test -r "$dir/libX11.a"; then
                                x_libraries="$dir"
                                break
                        fi
                done
        fi

        AC_PATH_XTRA
        if test "$with_x11" != "no"; then
                if test "$no_x" = "yes"; then
                        with_x11=no
                        window_system=none
                        HAVE_X_WINDOWS=no
                else
                        with_x11=yes
                        window_system=x11
                        HAVE_X_WINDOWS=yes
                fi
        fi
fi

dnl #### wmperry:: !x11 != NONE
dnl case "$with_x11" in
dnl  yes ) window_system=x11  HAVE_X_WINDOWS=yes ;;
dnl  no  ) window_system=none HAVE_X_WINDOWS=no  ;;
dnl esac

AM_CONDITIONAL([DESCEND_LWLIB], [test "$with_x11" = "yes"])
if test "$with_x11" = "yes"; then
        AC_DEFINE([HAVE_X_WINDOWS], [1], [Description here!])
        AC_DEFINE([NeedFunctionPrototypes], [1], [Description here!])
        AC_DEFINE([FUNCPROTO], [15], [Whatever this is.])
        AC_DEFINE([HAVE_UNIXOID_EVENT_LOOP], [1], [Description here!])
        SXE_APPEND([lwlib], [MAKE_SUBDIR])
        SXE_APPEND([lwlib], [SRC_SUBDIR_DEPS])

        SXE_ADD_SXEUIX11_OBJS([console-x.o device-x.o event-Xt.o frame-x.o])
        SXE_ADD_SXEUIX11_OBJS([glyphs-x.o objects-x.o redisplay-x.o select-x.o])
        SXE_ADD_SXEUIX11_OBJS([xgccache.o])

        SXE_DUMP_LIBS
        ## some debian systems are trying to fool us ... now fool them back!
        if test -d "$x_includes"; then
                CPPFLAGS="$CPPFLAGS -I$x_includes"
        fi
        if test -d "$x_libraries"; then
                LDFLAGS="$LDFLAGS -L$x_libraries"
        fi

        dnl Look for Motif, but only if not found in $x_includes and $x_libraries
        AC_CHECK_HEADERS([Xm/Xm.h])
        if test "$ac_cv_header_Xm_Xm_h" = "yes"; then
                AC_CHECK_LIB([Xm], [XmStringFree], [got_motif=yes])
        fi

        if test "$got_motif" != "yes"; then
                dnl Try to find Motif dirs
                dnl These take precedence over other X libs/includes, so PRE-pend
                for lib_dir in \
                        "/usr/dt/lib" "/usr/lib/Motif2.1" \
                        "/usr/lib/Motif1.2" "/usr/lib/Motif1.1"; do
                        inc_dir=`echo $lib_dir | sed -e 's/lib/include/'`
                        if test -d "$lib_dir" -a -d "$inc_dir"; then
                                case "$x_libraries" in
                                *"$lib_dir"* )
                                        ;;
                                *)
                                        x_libraries="$lib_dir $x_libraries"
                                        SXE_PREPEND(["-L${lib_dir}"], [X_LIBS])
                                        ;;
                                esac
                                case "$x_includes" in
                                "$inc_dir"* )
                                        ;;
                                *)
                                        x_includes="$inc_dir $x_includes"
                                        SXE_PREPEND_UNDUP(["-I${inc_dir}"], [X_CFLAGS])
                                        ;;
                                esac
                                break; dnl only need ONE Motif implementation!
                        fi
                done
        fi

        dnl Contrib X libs/includes do NOT take precedence, so AP-pend
        for rel in "X11R7" "X11R6" "X11R5" "X11R4"; do
                lib_dir="/usr/contrib/$rel/lib" inc_dir="/usr/contrib/$rel/include"
                if test -d "$lib_dir" -a -d "$inc_dir"; then
                        case "$x_libraries" in
                        *"$lib_dir"* )
                                ;;
                        *)
                                x_libraries="$x_libraries $lib_dir"
                                SXE_APPEND(["-L${lib_dir}"], [X_LIBS])
                                ;;
                        esac
                        case "$x_includes" in
                        "$inc_dir"* )
                                ;;
                        *)
                                x_includes="$x_includes $inc_dir"
                                SXE_APPEND_UNDUP(["-I${inc_dir}"], [X_CFLAGS])
                                ;;
                        esac
                        break; dnl Only need ONE X11 implementation !
                fi
        done

        dnl Avoid version mismatch for shared library libXm.so on osf4
        case "$opsys" in
        decosf*)
                AS_IF([test "$GCC" = yes -a -d "/usr/shlib"],
                        SXE_APPEND([-L/usr/shlib], [X_LIBS]))
                ;;
        esac

        LDFLAGS="$LDFLAGS $X_LIBS"

        if test "$extra_verbose" = "yes"; then
                echo
                echo "X11 compilation variables:"
                SXE_PRINT_VAR(x_libraries x_includes
                        X_CFLAGS X_LIBS X_PRE_LIBS X_EXTRA_LIBS)
                echo
        fi

        dnl Set up bitmaps search path.
        dnl The original suggestion was to unconditionally to append X11/bitmaps
        dnl to each element of $x_includes, I'm pretty sure this is the wrong
        dnl thing to do.  We test for bitmaps and X11/bitmaps directories on each
        dnl element and add them to BITMAPDIR if they exist.
        bitmapdirs=
        if test "$x_includes" != NONE; then
                for i in $x_includes; do
                        if test -d "$i/bitmaps"; then
                                bitmapdirs="$i/bitmaps:$bitmapdirs"
                        fi
                        if test -d "$i/X11/bitmaps"; then
                                bitmapdirs="$i/X11/bitmaps:$bitmapdirs"
                        fi
                done
                bitmapdirs=`echo "$bitmapdirs" | sed s/.$//`
        fi
        if test ! -z "$bitmapdirs"; then
                AC_DEFINE_UNQUOTED([BITMAPDIR], ["$bitmapdirs"], [Description here!])
        fi

dnl   dnl Autodetect defines extracted from X config by xmkmf, e.g. NARROWPROTO
dnl   AS_MESSAGE(checking for X defines extracted by xmkmf)
dnl   rm -fr conftestdir
dnl   if mkdir conftestdir; then
dnl     cd conftestdir
dnl     cat > Imakefile <<'EOF'
dnl xetest:
dnl     @echo ${PROTO_DEFINES} ${STD_DEFINES}
dnl EOF
dnl     if (xmkmf) >/dev/null 2>/dev/null && test -f Makefile; then
dnl       # GNU make sometimes prints "make[1]: Entering...", which would confuse us.
dnl       xmkmf_defines=`${MAKE-make} xetest 2>/dev/null | grep -v make`
dnl     fi
dnl     cd ..
dnl     rm -fr conftestdir
dnl     for word in $xmkmf_defines; do
dnl       case "$word" in
dnl       -D__STDC__*) ;;
dnl       -D* )
dnl     sym=`echo '' $word | sed -e 's:^ *-D::' -e 's:=.*::'`
dnl     case "$word" in
dnl       -D*=* ) val=`echo '' $word | sed -e 's:^.*=::'` ;;
dnl       *     ) val=1 ;;
dnl     esac
dnl dnl Avoid re-AC_DEFINE-ing xmkmf symbols we've already defined above.
dnl     if grep "^#define $sym " confdefs.h >/dev/null; then :; else
dnl       if test "$val" = "1"
dnl         then AC_DEFINE_UNQUOTED([$sym], [], [Description here!])
dnl         else AC_DEFINE_UNQUOTED([$sym], [$val], [Description here!])
dnl       fi
dnl     fi  ;;
dnl       esac
dnl     done
dnl   fi

        dnl make sure we can find Intrinsic.h
        AC_CHECK_HEADER([X11/Intrinsic.h], [],
                [AC_MSG_ERROR([Unable to find X11 and/or Xt header files. Try using --x-includes=<path> if you know the path, or --with-x=no to disable X11 support.])])

        dnl Check some more headers
        AC_CHECK_HEADERS([X11/Intrinsic.h X11/StringDefs.h X11/Shell.h X11/ShellP.h],
                [],[],
                [[#if HAVE_X11_INTRINSIC_H
                  # include <X11/Intrinsic.h>
                  # include <X11/IntrinsicP.h>
                  # include <X11/CoreP.h>
                  #endif]])

        dnl -lXt and -lX11 are required
        dnl Some broken systems require the magic "-b i486-linuxaout" flag

        dnl Other broken systems will not pass these tests unless the pre and
        dnl extra libs are passed on...
        LIBS="$LIBS $X_PRE_LIBS $X_EXTRA_LIBS"
        AC_CHECK_LIB(X11, XOpenDisplay, have_lib_x11=yes)
        if test "$have_lib_x11" != "yes"; then
                AC_CHECK_LIB([X11], [XGetFontProperty],
                        [],
                        [AC_MSG_ERROR([Unable to find X11 libraries. Try using --x-libraries=<path> if you know the path, or --with-x=no to disable X11 support.])])
        fi
        SXE_PREPEND([-lX11], [libs_x])
        LIBS="$LIBS -lX11"
        if test "$extra_verbose" = "yes"; then
                echo "    Setting libs_x to \"-lX11\""
        fi
        dnl Autodetect -lXext
        AC_CHECK_LIB([Xext], [XShapeSelectInput], [SXE_PREPEND([-lXext], [libs_x])])

        dnl Require -lXt
        AC_CHECK_LIB([Xt], [XtOpenDisplay], [SXE_PREPEND([-lXt], [libs_x])], [
                AC_MSG_ERROR([Unable to find X11 libraries. Try using --x-libraries=<path> if you know the path, or --with-x=no to disable X11 support.])])

        AC_MSG_CHECKING([the version of X11 being used])
        AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <X11/Intrinsic.h>
int main(int c, char *v[]) { return c>1 ? XlibSpecificationRelease : 0; }]])],
                [./conftest foobar; x11_release=$?],[x11_release=4],[x11_release=4])
        AC_MSG_RESULT(R${x11_release})
        AC_DEFINE_UNQUOTED([X11_RELEASE], [${x11_release}], [Description here!])

        AC_CHECK_FUNCS([XConvertCase])
        AC_CHECK_LIB([Xt], [XtRegisterDrawable])
        if test "$ac_cv_lib_Xt_XtRegisterDrawable" = "yes"; then
                AC_DEFINE([HAVE_XTREGISTERDRAWABLE], [1], [Description])
        fi

        AC_CHECK_HEADERS(X11/Xlocale.h)

        dnl XFree86 has a non-standard prototype for this X11R6 function
        AC_CHECK_FUNCS(XRegisterIMInstantiateCallback)
        AC_MSG_CHECKING(for standard XRegisterIMInstantiateCallback prototype)
        AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#ifndef NeedFunctionPrototypes
#define NeedFunctionPrototypes 1
#endif
#include <X11/Xlib.h>
extern Bool XRegisterIMInstantiateCallback(
        Display*, struct _XrmHashBucketRec*, char*, char*, XIMProc, XPointer*);
]])],
        [AC_MSG_RESULT(yes)],
        [AC_MSG_RESULT(no)
                AC_DEFINE([XREGISTERIMINSTANTIATECALLBACK_NONSTANDARD_PROTOTYPE],
                        [], [Description here!])])

        dnl autodetect -lXmu
        AC_CHECK_LIB([Xmu], [XmuReadBitmapDataFromFile],
                [with_xmu=yes], [with_xmu=no])
        if test "$with_xmu" = "no"; then
                SXE_ADD_SXEUIX11_OBJS([xmu.o])
        else
                SXE_PREPEND([-lXmu], [libs_x])
                AC_DEFINE([HAVE_XMU], [1], [Description here!])
        fi

        dnl Autodetect -lXbsd
        dnl #### Someone, please add a better function than main
        AC_CHECK_LIB([Xbsd], [main], SXE_PREPEND([-lXbsd], [libs_x]))

        dnl restore old values
        SXE_RESTORE_LIBS
fi dnl $with_x11 = yes

AC_SUBST([install_pp])

dnl test "$with_dragndrop" != "no" && with_dragndrop="$with_dragndrop_default"
dnl test -z "$window_system" && window_system="none"
with_dragndrop="no"

dnl Test for features that require a window system - ANY window system
if test "$window_system" = "none"; then
  for feature in menubars scrollbars toolbars dialogs dragndrop xface
  do
    if eval "test -n \"\$with_${feature}\" -a \"\$with_${feature}\" != no" ; then
       AC_MSG_WARN([--with-$feature ignored:  Not valid without window system support])
    fi
    eval "with_${feature}=no"
  done
else
  test -z "with_toolbars" && with_toolbars=yes
fi

dnl Test for features that require X11 support
if test "$with_x11" != "yes"; then
  for feature in offix wmcommand xim xmu nas_sound
  do
    if eval "test -n \"\$with_${feature}\" -a \"\$with_${feature}\" != no" ; then
       AC_MSG_WARN([--with-$feature ignored:  Not valid without X support])
    fi
    eval "with_${feature}=no"
  done
fi

dnl Balloon Help requires the Shape extension, not available everywhere,
dnl for example not on AIX 4.3.
if test "$with_x11" = "yes"; then
  AC_CHECK_HEADER(X11/extensions/shape.h, [
   AC_DEFINE([HAVE_BALLOON_HELP], [1], [Description here!])
   SXE_ADD_SXEUIX11_OBJS(balloon_help.o balloon-x.o)
   ])
fi

dnl FSF 19.29 has some bitmapdir stuff here.
bitmapdir=

case "$window_system" in
  x11  ) HAVE_X_WINDOWS=yes; echo "  Using X11." ;;
  none ) HAVE_X_WINDOWS=no ; echo "  Using no window system." ;;
esac

if test -n "$window_system" -a "$window_system" != "none"; then
        AC_DEFINE_UNQUOTED([HAVE_WINDOW_SYSTEM], [1], [Description here!])
fi

case "$x_libraries" in *X11R4* )
  test "$opsys" = "hpux9"     && opsysfile="s/hpux9-x11r4.h"
  test "$opsys" = "hpux9-shr" && opsysfile="s/hpux9shxr4.h"
esac

dnl Enable or disable proper handling of WM_COMMAND
AS_MESSAGE(checking for WM_COMMAND option);
dnl if test "$with_wmcommand" = "yes"; then
if test "$with_wmcommand" != "no"; then
  AC_DEFINE([HAVE_WMCOMMAND], [1], [Description here!])
fi

dnl Autodetect Xauth
dnl -lXau is only used by gnuclient, so use a special variable for Xauth X libs
test "$with_xauth" != "no" && test "$window_system" = "none" && with_xauth=no
SXE_DUMP_LIBS
CPPFLAGS="$CPPFLAGS $X_CFLAGS"
LDFLAGS="$LDFLAGS $X_LIBS"
AC_CHECK_HEADER([X11/Xauth.h], [:], [with_xauth=no])
AC_CHECK_LIB([Xau], [XauGetAuthByAddr], [:], [with_xauth=no])
if test "$with_xauth" = "yes"; then
  AC_DEFINE([HAVE_XAUTH], [1], [Description here!])
  SXE_CONSECUTIVE_UNDUP([libs_xauth], [$X_EXTRA_LIBS -lXau $libs_x $X_PRE_LIBS])
fi
SXE_RESTORE_LIBS
AC_SUBST(libs_xauth)

dnl ----------------------
dnl X-Specific Graphics libraries
dnl ----------------------

## Oki, now that we really need a more exhaustive way to autodetect
## athena and other widgets we construct a chain.  The elements of
## that chain are simple atomic tests (provided by AC_DEFUNs).
## The chain is defined to be:
##
## neXtaw -> Xaw3d -> XawXpm -> Xaw95  ->  Xaw  ->  Motif  ->  Nirvana
## ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^      ^^^      ^^^^^
##         3d sets                       non-3d   non-athena
##
## Now if the user passes a --with-athena=foo option, we jump
## directly to the according test-suite and in case this fails we jump
## off the cliff.
##
## Attention:
## We shall perform every test-suite twice, once the correct way, and
## once with #include'ing the Xfuncproto header.
## Thanks to the many, many distributions which treat their users
## like braindead zombies!
## Especially, I would like to thank Fedora/RedHat for bringing
## this up. Go on guys, you rock!

## and now the test chain
if test "$with_x11" = "yes" -a "$with_x" != "no"; then
        SXE_CHECK_XTOOLKITS
        SXE_CHECK_XT_DEPENDENCIES
else
        with_menubars=no
        with_scrollbars=no
        with_dialogs=no
        with_toolbars=no
        with_widgets=no
fi

dnl Always compile OffiX unless --without-offix is given, no
dnl X11 support is compiled in, no standard Xmu is available,
dnl or dragndrop support is disabled
dnl Because OffiX support currently loses when more than one display
dnl is in use, we now disable it by default -slb 07/10/1998.
test "$window_system" != "x11" && with_offix=no
if test "$with_xmu" != yes -a "$with_x11" = yes; then
  if test "$with_offix" = "yes" ; then
    AC_MSG_WARN([--with-offix forced to `no'; no real Xmu support])
  fi
  with_offix=no
fi
if test "$with_dragndrop" = "no" ; then
  if test "$with_offix" = "yes" ; then
    AC_MSG_WARN([--with-offix forced to `no'; no generic Drag'n'Drop support])
  fi
  with_offix=no
fi
if test "$with_offix" = "yes"; then
  AC_DEFINE([HAVE_OFFIX_DND], [1], [Description here!])
  SXE_APPEND(offix.o, dnd_objs)
  SXE_APPEND(OffiX, dragndrop_proto)
fi


## TTY Options
## ===========
echo
echo "TTY Options"
echo "==========="


dnl ---------------------
dnl TTY-dependent options
dnl ---------------------

dnl checks for header files
AC_CHECK_HEADERS([libintl.h nlist.h sgtty.h termio.h termios.h])

AS_IF([test "$with_tty" != "no"],[
   AS_MESSAGE(checking for TTY-related features)
   dnl Check if needed calls are available at all...
   
   with_tty_libs=""
   detect_tty_libs=""
   for lib in ncurses curses tinfo terminfo termlib termcap
   do
       eval "with=\$with_${lib}"
       if test "$with" = no
       then
          AC_MSG_WARN(["Ignoring available ${lib} due to --with-${lib}=no"])
       elif test "$with" = "yes"
       then
          with_tty_libs="$with_tty_libs $lib"
       else
          detect_tty_libs="$detect_tty_libs $lib"
       fi
   done

   # All terminal info functions needed
   tty_funcs="tgetent tgetstr tgetflag tgetnum tparm tgoto tputs"
   tty_libs=""
   # Filter by existing libs, printf is sure to be available with libc, so failure
   # would come from lib not find
   for lib in $with_tty_libs $detect_tty_libs
   do
       SXE_CHECK_LINK_LIB($lib)
       if eval "test \"\$sxe_cv_c_lib_${lib}\" != yes"
       then
          if eval "test \"\$with_${lib}\" = yes"
          then
             AC_MSG_WARN(["Ignoring --with-${lib}=yes due to library not linkable"])
             eval "with_${lib}=no"
          fi
          continue
       fi

       AC_CHECK_LIB([$lib], [$tty_funcs])

       # Lets verify we have all functions
       for func in $tty_func
       do
           if eval "test \"\$ac_cv_lib_${lib}_${func}\" = no"
           then
              AS_MESSAGE(["Skipping ${lib}, does not support to all TTY functions"])
              lib=""
              break
           fi
       done

       tty_libs="$tty_libs $lib"
   done

   if test -n "$tty_libs"
   then
      AS_MESSAGE(["Considering libraries: $tty_libs"])
   
      # Check which preferred lib can be used
      for func in $tty_funcs
      do
         # Make sure no flags are harmed during the search
         sxe_save_LIBS=$LIBS
         AC_SEARCH_LIBS($func, $tty_libs)
         LIBS=$sxe_save_LIBS
      done

      # Minimize the set of libraries
      tty_feature=""
      tty_fun=""
      for func in $tty_funcs
      do
          eval lib=\$ac_cv_search_${func}
          if test "$lib" != no -a "$lib" != "none required"
          then
              for feature in $tty_feature
              do
                  if test "$feature" = "$lib"
                  then
                     lib=""
                     func=""
                     break;
                  fi
              done
              tty_feature="$tty_feature $lib"
              tty_fun="$tty_fun $func"
          fi
       done
   fi

   if test -n "$tty_feature"
   then
      # Check all the expected functions still compile with all the added
      # libraries
      sxe_save_LIBS=$LIBS
      LIBS="$LIBS $tty_feature"
      AC_CHECK_FUNCS($tty_funcs)
      for func in $tty_fun
      do
        if eval "test \"\$ac_cv_func_${func}\" = no"
        then
            tty_feature=""
            break
        fi
      done
      LIBS=$sxe_save_LIBS
   fi

   if test -n "$tty_feature"
   then
      SXE_PREPEND($tty_feature, LIBS)
      for lib in $tty_feature
      do
         l=`echo $lib | sed -e 's/^-l//g'`
         eval "with_${l}=yes"
      done
      with_builtin_tty=no
      have_tty=yes
   else
      AC_MSG_WARN([Could not link all needed tty functions.]
                  [Please consider installing ncurses.])
      if test "$with_builtin_tty" = yes
      then
          AC_MSG_WARN([Using builtin tty support.])
          have_tty=yes
      else
          AC_MSG_WARN([Use --with-builtin-tty=yes if you cannot use ncurses.])
          have_tty=no
      fi
   fi

   if test "$with_builtin_tty" = yes
   then
      # Add our own wrappers using termcap
      SXE_ADD_SXEUITTY_OBJS(termcap.o)
      SXE_ADD_SXEUITTY_OBJS(tparam.o)
      have_tty=yes
   elif test "$have_tty" = yes
   then
      # Terminfo interface, since tgetent etc are available
      SXE_ADD_SXEUITTY_OBJS(terminfo.o)
   fi

   # Check headers, first generally
   AC_CHECK_HEADER(termcap.h, termcap_h_file=termcap.h)
   AC_CHECK_HEADER(term.h,    term_h_file=term.h)
   
   if test "$have_ncurses" = yes; then
      # Verify how ncurses overrides them
      AC_CHECK_HEADER(ncurses/ncurses.h, curses_h_file=ncurses/ncurses.h)
      if test -z "$curses_h_file"; then
            AC_CHECK_HEADER(ncurses/curses.h,  curses_h_file=ncurses/curses.h)
      fi
      if test -n "$curses_h_file"; then
            AC_CHECK_HEADER(ncurses/termcap.h, termcap_h_file=ncurses/termcap.h)
            AC_CHECK_HEADER(ncurses/term.h,    term_h_file=ncurses/term.h)
      else
            AC_CHECK_HEADER(ncurses.h,         curses_h_file=ncurses.h)
      fi
      
      if test -z "$curses_h_file" ; then
          dnl Try again, and check for the bogus ncurses/ include bug.
          dnl (i.e. ncurses/curses.h bogusly includes <unctrl.h> instead of
          dnl <ncurses/unctrl.h>)
          save_c_switch_site="$c_switch_site"
          c_switch_site="$c_switch_site -I/usr/include/ncurses"
          AC_CHECK_HEADER(ncurses/ncurses.h,   curses_h_file=ncurses/ncurses.h)
          if test -z "$curses_h_file"; then
            AC_CHECK_HEADER(ncurses/curses.h,  curses_h_file=ncurses/curses.h)
          fi
          if test -n "$curses_h_file"; then
            AC_CHECK_HEADER(ncurses/termcap.h, termcap_h_file=ncurses/termcap.h)
            AC_CHECK_HEADER(ncurses/term.h,    term_h_file=ncurses/term.h)
          else
            AC_CHECK_HEADER(ncurses.h,         curses_h_file=ncurses.h)
          fi
          if test -n "$curses_h_file"
          then
                AC_MSG_WARN([Your system has the bogus ncurses include bug.])
                AC_CHECK_HEADER(termcap.h,         curses_h_file=termcap.h)
                AC_CHECK_HEADER(term.h,            curses_h_file=term.h)
          else c_switch_site="$save_c_switch_site"
          fi
      fi
   fi
   
   if test -n "$curses_h_file"; then
        AC_DEFINE_UNQUOTED([HAVE_CURSES_H], [1],
                           [There is a curses.h header file available])
   fi

   if test -n "$termcap_h_file"; then
        AC_DEFINE_UNQUOTED([HAVE_TERMCAP_H], [1],
                           [There is a termcap.h header available])
   fi

   if test -n "$term_h_file"; then
        AC_DEFINE_UNQUOTED([HAVE_TERM_H], [1],
                           [There is a term.h header available])
   fi

   AC_DEFINE_UNQUOTED([CURSES_H_FILE], ["${curses_h_file-curses.h}"],
                      [The curses.h header file])
   AC_DEFINE_UNQUOTED([TERMCAP_H_FILE], ["${termcap_h_file-termcap.h}"],
                      [The termcap.h header file])
   AC_DEFINE_UNQUOTED([TERM_H_FILE], ["${term_h_file-term.h}"],
                      [The term.h header file])
],[
  for feature in ncurses curses termcap terminfo termlib gpm; do
    if eval "test -n \"\$with_${feature}\" -a \"\$with_${feature}\" != no" ; then
      AC_MSG_WARN([--with-${feature} ignored:  Not valid without TTY support])
    fi
    eval "with_${feature}=\"\""
  done
])

AS_IF([test "$with_tty" != "no" -a "$have_tty" != no], [
        AC_DEFINE([HAVE_TTY], [1],
                  [Include TTY support for SXEmacs])
        AC_DEFINE([HAVE_UNIXOID_EVENT_LOOP], [1],
                  [Include Unixoid event loop - TTY provided])
        SXE_ADD_SXEUITTY_OBJS([console-tty.o device-tty.o event-tty.o frame-tty.o objects-tty.o redisplay-tty.o cm.o])
])

AS_IF([test "$with_tty" != "no" -a "$have_tty" != no], [
  dnl General Purpose Mouse (libgpm) support
  AS_IF([test "$with_gpm" != "no"], [
    AC_CHECK_HEADER(gpm.h, [
      AC_CHECK_LIB(gpm, Gpm_Open, have_gpm=yes)])
    AS_IF([test "$have_gpm" = "yes"], [
      with_gpm=yes
      AC_DEFINE([HAVE_GPM], [1], [General Purpose Mouse (libgpm) is available])
      SXE_ADD_SXEUITTY_OBJS(gpmevent.o)
      SXE_PREPEND(-lgpm, LIBS) ],[ with_gpm=no ])
  ])
])

SXE_CHECK_UI_SUFFICIENCY

AS_IF([test -z "$window_system" -o "$window_system" = "none" ], [
    dnl It ought to be reasonable to have no output device at all, and only use
    dnl SXEmacs in --batch mode.
    AS_IF([test "$have_tty" = "no"],
       AC_MSG_ERROR([No window system nor TTY support. SXEmacs cannot be compiled.
Check INSTALL and PROBLEMS files for hints on how to solve.]))
])

## Uncertain options
## =================
echo
echo "Uncertain options"
echo "================="

## for native xml support one day
SXE_LANG_CHECK_XML
SXE_CHECK_SUFFICIENCY([libxml2], [xml language])
## for BoehmGC support one day
SXE_CHECK_BDWGC
SXE_CHECK_SUFFICIENCY([bdwgc], [Boehm-Demers-Weiser GC])

if test "$with_experimental_features_bdwgc" = "yes"; then
        AC_MSG_CHECKING([if bdwgc prerequisites are met])
        AC_MSG_RESULT([${have_bdwgc}])
        have_experimental_features_bdwgc=${have_bdwgc}
        if test "${have_bdwgc}" = "yes"; then
                AC_DEFINE([EF_USE_BDWGC], [1],
                        [Whether to actually use the BDWGC!])
        fi
fi


dnl This one is for the static initializeds variables in
dnl offix.c, so that the thing is dumped after lastfile.o
AC_SUBST(dnd_objs)

dnl Autodetect dll support

LIBSTDCPP=
AC_SUBST(LIBSTDCPP)


## Multimedia Options
## ==================
echo
echo "Multimedia Options"
echo "=================="

dnl ----------------------
dnl Graphics libraries
dnl ----------------------

if test "$with_image_xpm" = "yes"; then
        SXE_MM_CHECK_XPM([have_image_xpm=yes], [have_image_xpm=no])

        AC_MSG_CHECKING([for sufficient xpm support])
        if test "$have_image_xpm" = "yes"; then
                AC_MSG_RESULT([yes])
                AC_DEFINE([HAVE_XPM], [1], [Description here!])
                SXE_PREPEND([-lXpm], [MM_LIBS])
        else
                AC_MSG_RESULT([no])
                have_image_xpm=no
        fi
fi
AM_CONDITIONAL([WITH_BDWGC],
        [test "$with_experimental_features_bdwgc" = "yes" -a \
              "$have_bdwgc" = "yes"])

if test "$with_image_xface" = "yes"; then
        SXE_MM_CHECK_XFACE([have_image_xface=yes], [have_image_xface=no])

        AC_MSG_CHECKING([for sufficient xface support])
        if test "$have_image_xface" = "yes"; then
                AC_MSG_RESULT([yes])
                AC_DEFINE([HAVE_XFACE], [1], [dnl
                        Both compface.h and libcompface have been found.])
                SXE_PREPEND([-lcompface], [MM_LIBS])
        else
                AC_MSG_RESULT([no])
                have_image_xface=no
        fi
fi

if test "$with_image_gif" = "yes"; then
        SXE_MM_CHECK_GIF([have_image_gif=yes], [have_image_gif=no])

        AC_MSG_CHECKING([for sufficient gif support])
        if test "$have_image_gif" = "yes"; then
                AC_MSG_RESULT([yes])
                AC_DEFINE([HAVE_GIF], [1], [Enable internal GIF decoding])
                SXE_ADD_MM_OBJS(dgif_lib.o gif_io.o)
        else
                AC_MSG_RESULT([no])
        fi
fi

SXE_MM_SEARCH_INFLATE

if test "$with_image_jpeg" = "yes"; then
        SXE_MM_CHECK_JPEG([have_image_jpeg=yes], [have_image_jpeg=no])

        AC_MSG_CHECKING([for sufficient jpeg support])
        if test "$have_image_jpeg" = "yes"; then
                AC_MSG_RESULT([yes])
                AC_DEFINE([HAVE_JPEG], [1], [
                        Both jpeglib.h and libjpeg have been found.])
                SXE_PREPEND([-ljpeg], [MM_LIBS])
        else
                AC_MSG_RESULT([no])
        fi
fi

if test "$with_image_png" = "yes"; then
        AC_DEFINE([WITH_PNG], [1], [Define to 1 if png support is desired.])
        SXE_MM_CHECK_PNG([have_image_png="yes"], [have_image_png="no"])

        SXE_MSG_CHECKING([for sufficient PNG support])
        SXE_MSG_RESULT([${sxe_cv_feat_png}])
        if test "$sxe_cv_feat_png" = "yes"; then
                SXE_PREPEND_UNDUP([$PNG_CPPFLAGS], [MM_CPPFLAGS])
                SXE_PREPEND_UNDUP([$PNG_LDFLAGS], [MM_LDFLAGS])
                SXE_PREPEND([$PNG_LIBS], [MM_LIBS])
        fi
fi

if test "$with_image_tiff" = "yes"; then
        SXE_MM_CHECK_TIFF([have_image_tiff=yes], [have_image_tiff=no])

        AC_MSG_CHECKING([for sufficient TIFF support])
        if test "$have_image_tiff" = "yes"; then
                AC_MSG_RESULT([yes])
                AC_DEFINE([HAVE_TIFF], [1], [
                        Both tiffio.h and libtiff have been found.])
                SXE_PREPEND([-ltiff], [MM_LIBS])
        else
                AC_MSG_RESULT([no])
        fi
fi

dnl Check for audio output and media stream libraries.

dnl internal media stream analysis support
if test "$with_media_internal" != "no"; then
        need_media_internal=yes
        have_media_internal=yes
fi

## Since almost any of the below tests uses pkgconfig we make a
## once-for-all-times check now
SXE_SEARCH_CONFIG_PROG([pkg-config])
if test "$have_pkg_config" = "yes" -a -n "$with_site_prefixes"; then
        for dir in $with_site_prefixes; do
                pkgcfg_dir="${dir}/lib/pkgconfig"
                if test -n "$PKG_CONFIG_PATH"; then
                   PKG_CONFIG_PATH="$PKG_CONFIG_PATH":"$pkgcfg_dir"
                else
                   PKG_CONFIG_PATH="$pkgcfg_dir"
                fi
        done
        export PKG_CONFIG_PATH
fi

dnl libsndfile support
if test "$with_media_sndfile" != "no"; then
        SXE_MM_CHECK_SNDFILE([have_media_sndfile=yes], [have_media_sndfile=no])

        AC_MSG_CHECKING([for sufficient sndfile support])
        if test "$have_media_sndfile" = "yes"; then
                AC_MSG_RESULT([yes])
                SNDFILE_LIBS=`$PKG_CONFIG --libs sndfile`
                SNDFILE_CPPFLAGS=`$PKG_CONFIG --cflags sndfile`
                SNDFILE_VERSION=`$PKG_CONFIG --modversion sndfile`
                SXE_PREPEND([$SNDFILE_LIBS], [MM_LIBS])
                SXE_PREPEND_UNDUP([$SNDFILE_CPPFLAGS], [MM_CPPFLAGS])
                SXE_ADD_MM_OBJS([media-sndfile.o])
                AC_DEFINE([HAVE_SNDFILE], [1],
                        [Whether we appear to have support for the sndfile library!])
                AC_DEFINE_UNQUOTED([SNDFILE_VERSION], [$SNDFILE_VERSION],
                        [Version of the sndfile library!])
        else
                AC_MSG_RESULT([no])
                have_media_sndfile=no
        fi
fi

dnl libavcodec/libavformat/ffmpeg support
if test "$with_media_ffmpeg" != "no"; then
        SXE_MM_CHECK_FFMPEG([have_media_ffmpeg=yes], [have_media_ffmpeg=no])

        AC_MSG_CHECKING([for sufficient FFmpeg support])

        if test "$have_media_ffmpeg" = "yes"; then
                AC_MSG_RESULT([yes])
                FFMPEG_LIBS=`$PKG_CONFIG --libs libavformat`
                FFMPEG_CPPFLAGS=`$PKG_CONFIG --cflags libavformat`
                SXE_PREPEND($FFMPEG_LIBS, MM_LIBS)
                SXE_PREPEND_UNDUP($FFMPEG_CPPFLAGS, MM_CPPFLAGS)
                SXE_ADD_MM_OBJS([media-ffmpeg.o])
                AC_DEFINE([HAVE_FFMPEG], [1], [Description here!])
        else
                AC_MSG_RESULT([no])
                have_media_ffmpeg=no
        fi
fi

dnl sox support
if test "$with_media_sox" != "no"; then
        SXE_MM_CHECK_SOX([have_media_sox=yes], [have_media_sox=no])

        AC_MSG_CHECKING([for sufficient SoX support])
        if test "$sxe_cv_feat_sox" = "yes"; then
                AC_MSG_RESULT([yes])
                SXE_ADD_MM_OBJS([media-sox.o])
                SXE_PREPEND_UNDUP([$sox_cppflags], [MM_CPPFLAGS])
                SXE_PREPEND_UNDUP([$sox_ldflags], [MM_LDFLAGS])
                SXE_PREPEND([$sox_libs], [MM_LIBS])
                AC_DEFINE([HAVE_SOX], [1], [Description here!])
        else
                AC_MSG_RESULT(no)
                have_media_sox=no
        fi
fi

dnl mad support
if test "$with_media_mad" != "no"; then
        SXE_MM_CHECK_MAD([have_media_mad=yes], [have_media_mad=no])

        AC_MSG_CHECKING([for sufficient mad support])
        if test "$have_media_mad" = "yes"; then
                AC_MSG_RESULT([yes])
                SXE_ADD_MM_OBJS([media-mad.o])
                SXE_PREPEND([-lmad], [MM_LIBS])
                AC_DEFINE([HAVE_MAD], [1], [Description here!])
        else
                AC_MSG_RESULT(no)
                have_media_mad=no
        fi
fi

## file/libmagic support
if test "$with_media_magic" != "no"; then
        SXE_MM_CHECK_MAGIC([have_media_magic=yes], [have_media_magic=no])

        AC_MSG_CHECKING([for sufficient magic support])
        if test "$have_media_magic" = "yes"; then
                AC_MSG_RESULT([yes])
                SXE_ADD_MM_OBJS([media-magic.o])
                SXE_PREPEND([-lmagic], [MM_LIBS])
                AC_DEFINE([HAVE_MAGIC], [1], [Whether libmagic is available])
        else
                AC_MSG_RESULT([no])
                have_media_magic=no
        fi
fi


dnl Autodetect OSS sound
AS_MESSAGE([checking for OSS sound support])
dnl test -z "$with_sound_oss" -a -n "$with_oss_sound_lib" && with_sound_oss=yes

dnl Check for Linux/BSD sound (called OSS)
if test "$with_sound_oss" != "no"; then
        SXE_MM_CHECK_OSS([have_sound_oss=yes], [have_sound_oss=no])

        AC_MSG_CHECKING([for sufficient OSS support])
        if test "$have_sound_oss" = "yes"; then
                AC_MSG_RESULT([yes])
                SXE_ADD_MM_OBJS([sound-oss.o])
                AC_DEFINE([HAVE_INTERNAL_SOUND], [1], [Description here!])
                AC_DEFINE([HAVE_OSS_SOUND], [1], [Description here!])
        else
                AC_MSG_RESULT([no])
                have_sound_oss=yes
        fi
fi

dnl NAS Sound support
if test "$with_sound_nas" != "no"; then
        SXE_MM_CHECK_NAS([have_sound_nas=yes], [have_sound_nas=no])

        AC_MSG_CHECKING([for sufficient NAS support])
        if test "$have_sound_nas" = "yes"; then
                AC_MSG_RESULT([yes])
                AC_DEFINE([HAVE_NAS_SOUND], [1], [Description here!])
                SXE_ADD_MM_OBJS([sound-nas.o])
                SXE_PREPEND([-laudio], [MM_LIBS])
        else
                AC_MSG_RESULT([no])
                have_nas_sound=no
        fi
fi

dnl ESD Sound support
if test "$with_sound_esd" != "no"; then
        SXE_MM_CHECK_ESD([have_sound_esd=yes], [have_sound_esd=no])

        AC_MSG_CHECKING([for sufficient ESD support])
        if test "$have_sound_esd" = "yes"; then
                AC_MSG_RESULT([yes])
                need_internal_media=yes
                SXE_ADD_MM_OBJS([sound-esd.o])
                ESD_LIBS=$("${ESD_CONFIG}" --libs)
                SXE_PREPEND(["${ESD_LIBS}"], [MM_LIBS])
                AC_DEFINE([HAVE_ESD_SOUND], [1], [Description here!])
        else
                AC_MSG_RESULT([no])
                have_esd_sound=no
        fi
fi

dnl PulseAudio Sound support
if test "$with_sound_pulse" != "no"; then
        SXE_MM_CHECK_PULSE([have_sound_pulse=yes], [have_sound_pulse=no])

        AC_MSG_CHECKING([for sufficient PulseAudio support])
        if test "$have_sound_pulse" = "yes"; then
                AC_MSG_RESULT([yes])
                need_internal_media=yes
                SXE_ADD_MM_OBJS([sound-pulse.o])
                SXE_PREPEND($PULSE_LIBS, MM_LIBS)
                SXE_PREPEND_UNDUP($PULSE_CFLAGS, MM_CPPFLAGS)
                AC_DEFINE([HAVE_PULSE_SOUND], [1],
                        [Whether to put in support for PulseAudio.])
        else
                AC_MSG_RESULT(no)
                have_sound_pulse=no
        fi
fi

dnl Jack Sound support
if test "$with_sound_jack" != "no"; then
        SXE_MM_CHECK_JACK([have_sound_jack=yes], [have_sound_jack=no])

        AC_MSG_CHECKING([for sufficient Jack support])
        if test "$have_sound_jack" = "yes"; then
                AC_MSG_RESULT([yes])
                dnl okay, we have Jack on the system, but we have no working
                dnl interface to it :(
                JACK_LIBS=`$PKG_CONFIG --libs jack`
                JACK_VERSION=`$PKG_CONFIG --modversion jack`
                need_internal_media=yes
                SXE_ADD_MM_OBJS([sound-jack.o])
                SXE_PREPEND([$JACK_LIBS], [MM_LIBS])
                AC_DEFINE([HAVE_JACK_SOUND], [1], [Description here!])
                AC_DEFINE_UNQUOTED([JACK_VERSION], [$JACK_VERSION],
                        [Description here!])
        else
                AC_MSG_RESULT(no)
        fi
fi

dnl alsa sound support
if test "$with_sound_alsa" != "no"; then
        SXE_MM_CHECK_ALSA([have_sound_alsa=yes], [have_sound_alsa=no])

        AC_MSG_CHECKING([for sufficient ALSA support])
        if test "$have_sound_alsa" = "yes"; then
                AC_MSG_RESULT([yes])
                SXE_ADD_MM_OBJS([sound-alsa.o])
                SXE_PREPEND([-lasound], [MM_LIBS])
        else
                AC_MSG_RESULT(no)
                have_sound_alsa=no
        fi
fi

dnl libao sound support
if test "$with_sound_ao" != "no"; then
        SXE_MM_CHECK_AO([have_sound_ao=yes], [have_sound_ao=no])

        AC_MSG_CHECKING([for sufficient AO support])
        if test "$have_sound_ao" = "yes"; then
                AC_MSG_RESULT([yes])
                AO_LIBS=`$PKG_CONFIG --libs ao`
                ao_version=`$PKG_CONFIG --modversion ao`
                SXE_ADD_MM_OBJS([sound-ao.o])
                SXE_PREPEND($AO_LIBS, MM_LIBS)
                AC_DEFINE([HAVE_AO_SOUND], [1], [Description here!])
                AC_DEFINE_UNQUOTED([AO_VERSION], [$ao_version], [Description here!])
        else
                AC_MSG_RESULT(no)
                have_sound_ao=no
        fi
fi

if test \
   "$have_sound_alsa \
    $have_sound_ao \
    $have_sound_esd \
    $have_sound_jack \
    $have_sound_nas \
    $have_sound_pulse" != "no no no no no no"; then
        AC_DEFINE([HAVE_AUDIO], [1], [Description here!])
fi
if test "$need_internal_media" = "yes"; then
        with_internal_media=yes
        AC_DEFINE([HAVE_INTERNAL_MEDIA], [1], [Description here!])
        SXE_ADD_MM_OBJS([media-internal.o])
fi
AC_SUBST([MM_LIBS])
AC_SUBST([MM_CPPFLAGS])
AC_SUBST([MM_LDFLAGS])
SXE_SUBST_MM_OBJS


## Internationalisation Options
## ============================
echo
echo "Internationalisation Options"
echo "============================"

dnl ----------------------
dnl Mule-dependent options
dnl ----------------------

dnl if test "$with_mule" = "yes" && test ! -d "$sxe_srcdir/lisp/mule"; then
dnl     echo "Attempt to Build with Mule without Mule/Lisp"
dnl     echo "Please install the SXEmacs/Mule tarball or"
dnl     echo "rerun configure with --with-mule=no"
dnl     exit 1
dnl fi

if test "$with_file_coding" = "yes" && test "$with_mule" = "no"; then
  AC_DEFINE([FILE_CODING], [1], [Description here!])
  SXE_ADD_MULE_OBJS(file-coding.o)
fi

if test "$with_mule" = "yes" ; then
        SXE_CHECK_MULE

else dnl "$with_mule" = "no"
        for feature in xim canna wnn; do
                if eval "test -n \"\$with_${feature}\" -a \
                        \"\$with_${feature}\" != no" ; then
                        AC_MSG_WARN([--with-${feature} ignored:  Not valid without Mule support])
                fi
                eval "with_${feature}=no"
        done
fi dnl with_mule
SXE_SUBST_MULE_OBJS
AM_CONDITIONAL([WITH_MULE], [test "$with_mule" = "yes"])


dnl At this point, we know whether we need the motif lib or not.
if test "$need_motif" = "yes" ; then
        SXE_PREPEND([-lXm], [libs_x])
        dnl AIX needs the following library for use with Motif
        AC_CHECK_LIB([i18n], [layout_object_getvalue])
        if test "$ac_cv_lib_i18n_layout_object_getvalue" = "yes"; then
                SXE_PREPEND([-li18n], [libs_x])
        fi
fi

dnl getaddrinfo() is borked under hpux11
if test "$ac_cv_func_getaddrinfo" != "no" ; then
  case "$opsys" in
    hpux11 )
      AC_MSG_WARN([Use of getaddrinfo is disabled for HP-UX 11.XX.])
      ac_cv_func_getaddrinfo=no
      ;;
  esac
fi


## Database Options
## ================
echo
echo "Database Options"
echo "================"

dnl Database support
dnl We do not necessarily have to have libdb/lib(g)dbm for DB/(G)DBM support.
dnl On FreeBSD, both DB and DBM are part of libc.
dnl By default, we check for DBM support in libgdbm, then libc, then libdbm.

## initialise values
have_database_berkdb=no
have_database_gdbm=no
have_database_dbm=no

if test "$with_database_gdbm $with_database_dbm $with_database_berkdb" \
   != "no no no"; then
        AS_MESSAGE(checking for database support)
fi

dnl Check for ndbm.h, required for either kind of DBM support.
if test "$with_database_gdbm $with_database_dbm" != "no no"; then
        SXE_CHECK_NDBM
        if test "$sxe_cv_feat_ndbm" = "no"; then
                have_database_gdbm="no"
                have_database_dbm="no"
        fi
fi

dnl Check for DBM support in libgdbm or libgdbm_compat.
if test "$with_database_gdbm" != "no"; then
        SXE_CHECK_GDBM

        if test "$sxe_cv_feat_gdbm" = "yes"; then
                have_database_gdbm="yes"
        else
                have_database_gdbm="no"
        fi
fi

dnl Check for DBM support in libc and libdbm.
if test "$with_database_dbm" != "no"; then
        SXE_CHECK_DBM

        if test "$sxe_cv_feat_gdbm" != "yes" -a \
                "$sxe_cv_feat_dbm" = "yes"; then
                have_database_dbm="yes"
        else
                have_database_dbm="no"
        fi
fi

dnl Check for Berkeley DB.
if test "$with_database_berkdb" != "no"; then
        SXE_CHECK_BERKDB

        if test "$sxe_cv_feat_berkdb" = "yes"; then
                have_database_berkdb="yes"
        else
                have_database_berkdb="no"
        fi
fi

if test "$have_database_gdbm $have_database_dbm $have_database_berkdb" \
     != "no no no"; then
        AC_DEFINE([HAVE_DATABASE], [1], [Description here!])
        SXE_ADD_DB_OBJS([database.o])

        SXE_CHECK_NDBM_BERKDB_CONFLICT
        if test "$sxe_cv_db_ndbm_berkdb_conflict" = "yes"; then
                ## can't do nothing because the way we designed it
                ## is going to conflict at compile time
                have_database_gdbm="no"
                have_database_dbm="no"

        elif test "$have_database_gdbm $have_database_dbm" != "no no"; then
                AC_DEFINE([HAVE_DBM], [1], [Description here!])

                ## Also, tell make about the DBM support we detected.
                if test -n "$libdbm"; then
                        SXE_PREPEND([$libdbm], [DB_LIBS])
                fi
        fi
fi


dnl Autodetect LDAP
if test "$with_ldap" != "no"; then
        SXE_CHECK_LDAP
fi
if test "$have_ldap" = "yes"; then
        AC_DEFINE([HAVE_LDAP], [1], [Description here!])
        SXE_ADD_DB_OBJS(eldap.o)
        if test "$have_ldap_des" = "yes" ; then
                SXE_PREPEND(-ldes, DB_LIBS)
        fi
        if test "$have_ldap_krb" = "yes" ; then
                SXE_PREPEND(-lkrb, DB_LIBS)
        fi
        if test "$have_ldap_lber" = "yes" ; then
                SXE_PREPEND(-llber, DB_LIBS)
        fi
        SXE_PREPEND(-lldap, DB_LIBS)

        dnl save our values until here
        save_LIBS="$LIBS"
        LIBS="$DB_LIBS $LIBS"
        AC_CHECK_FUNCS(
                [ldap_set_option ldap_get_lderrno ldap_result2error ldap_parse_result])
        dnl and restore
        LIBS="$save_LIBS"
fi

dnl Autodetect PostgreSQL
if test "x$with_postgresql" != "xno"; then
        SXE_CHECK_POSTGRESQL
fi
SXE_SUBST_DB_OBJS


dnl Usage tracking (undocumented and likely unused option)
if test "$usage_tracking" = "yes"; then
  AC_DEFINE([USAGE_TRACKING], [1], [Description here!])
  SXE_PREPEND(-Bstatic -lut -Bdynamic, LIBS)
fi

dnl Unfortunately, just because we can link doesn't mean we can run.
dnl One of the above link tests may have succeeded but caused resulting
dnl executables to fail to run.  Also any tests using AC_RUN_IFELSE will
dnl have reported incorrect results.
AC_RUN_IFELSE([AC_LANG_SOURCE([[int main(int c,char *v[]){return 0;}]])],[:],[
  echo ""
  echo "*** PANIC *** The C compiler can no longer build working executables."
  echo "*** PANIC *** Please examine the tail of config.log for runtime errors."
  echo "*** PANIC *** The most likely reason for this problem is that configure"
  echo "*** PANIC *** links with shared libraries, but those libraries cannot be"
  echo "*** PANIC *** found at run time."
  echo "*** PANIC ***"
  echo "*** PANIC *** On a Linux system, edit /etc/ld.so.conf and re-run ldconfig."
  echo "*** PANIC *** On other systems, try telling configure where to find the"
  echo "*** PANIC *** shared libraries using the --with-site-runtime-libraries option"
  echo "*** PANIC ***"
  echo "*** PANIC *** Another way to shoot yourself in the foot is to specify"
  echo "*** PANIC *** --with-FEATURE when FEATURE is not actually installed"
  echo "*** PANIC *** on your system.  Don't do that."
  exit 1], [AS_MESSAGE(cannot cross-compile)])

dnl Process support
AC_DEFINE([HAVE_UNIX_PROCESSES], [1], [Description here!])

dnl --------------------------------
dnl Compute SUBST-itutable variables
dnl --------------------------------

dnl We ignore (C|LD)_SWITCH_X_(MACHINE|SYSTEM)
dnl Use SXE_CONSECUTIVE_UNDUP instead of plain assignment statements to remove extraneous blanks
if test "$with_module_support" = "yes"; then
        ld_libs_module=
else
        SXE_CONSECUTIVE_UNDUP(ld_libs_module, $ldap_libs $postgresql_libs)
fi

SXE_UNDUP(CFLAGS, $CFLAGS)
SXE_UNDUP(c_switch_general, -DHAVE_CONFIG_H $c_switch_site $c_switch_machine $c_switch_system $CFLAGS $CPPFLAGS)
SXE_UNDUP(c_switch_window_system, $c_switch_x_site $X_CFLAGS)
SXE_UNDUP(c_switch_all, $c_switch_general $c_switch_window_system)
SXE_UNDUP(ld_switch_general, $ld_switch_site $ld_switch_machine $ld_switch_system $ld_switch_run)
SXE_UNDUP(ld_switch_window_system, $ld_switch_x_site)
SXE_UNDUP(ld_switch_all, $ld_switch_general $ld_switch_window_system)
dnl Since some systems need libs to be restated later, we can't just dedup, we can only safely dedup
dnl consecutive occurrences
SXE_CONSECUTIVE_UNDUP(ld_libs_general, $LIBS $libs_machine $libs_system $libs_standard)
SXE_CONSECUTIVE_UNDUP(ld_libs_window_system, $X_EXTRA_LIBS $libs_x $X_PRE_LIBS)
SXE_CONSECUTIVE_UNDUP(ld_libs_all, $OPENSSL_LIBS $DB_LIBS $ENT_LIBS $MM_LIBS $ld_libs_window_system $ld_libs_general $ld_libs_module)

dnl For no-module builds, make the src dir last
if test "$with_module_support" = "no"; then
        SXE_APPEND(src, MAKE_SUBDIR)    dnl is that still important?
fi

EMACS=$sxe_blddir/src/$PROGNAME
AC_SUBST(EMACS)

dnl Compute lists of Makefiles and subdirs
AC_SUBST(SRC_SUBDIR_DEPS)
internal_makefile_list="Makefile.in"
SUBDIR_MAKEFILES=''
test -d lock || mkdir lock
for dir in $MAKE_SUBDIR; do
  case "$dir" in */* ) dnl Implement mkdir -p
    ( for d in `echo $dir | sed 's:/: :g'` ; do
        test -d "$d" || mkdir "$d"; cd "$d"
      done ) ;;
   * ) test -d "$dir" || mkdir "$dir" ;;
  esac
  SXE_SPACE(SUBDIR_MAKEFILES, $SUBDIR_MAKEFILES $dir/Makefile $dir/Makefile)
  SXE_SPACE(internal_makefile_list, $internal_makefile_list $dir/Makefile.in)
done

AC_SUBST(INSTALL_ARCH_DEP_SUBDIR)
AC_SUBST(MAKE_SUBDIR)
AC_SUBST(MAKE_AM_SUBDIR)
AC_SUBST(SUBDIR_MAKEFILES)

dnl ----------------------------------------------
dnl Create some auxiliary files for developers.
dnl ----------------------------------------------

dnl Create a useful TAGS file
if test -f "$sxe_srcdir/TAGS" -a ! -f "TAGS"; then
  test "$extra_verbose" = "yes" && echo "creating TAGS"
  echo "\f
$sxe_srcdir/TAGS,include" > "TAGS"
fi

dnl Create top level .sbinit for Sun compilers
if test "$__SUNPRO_C" = "yes"; then
  test "$extra_verbose" = "yes" && echo "creating .sbinit"
  ( echo "# For use with Sun WorkShop's Source browser."
    echo "# See sbquery(1) and sbinit(4) for more information"
    for dir in $MAKE_SUBDIR; do echo "import $dir"; done
  ) > .sbinit
fi

### whether to build with profile.o
AC_RUN_IFELSE([AC_LANG_SOURCE([[
int main(int c, char *v[])
{
#ifdef HAVE_SETITIMER
        return 1;
#else
        return 0;
#endif
}]])], [./conftest; have_setitimer=$?],
        [have_setitimer=$?],[have_setitimer=0])
AM_CONDITIONAL([HAVE_SETITIMER], [test "$have_setitimer" = "1"])


dnl There are no more compile tests; remove the core they created.
rm -f core

dnl --------------------------------------------------
dnl Substitute into Makefile, config.h and sxe-paths.h
dnl --------------------------------------------------

dnl what sort of things to edit into Makefile, config.h and sxe-paths.h
dnl configuration here uncanonicalized to avoid exceeding size limits.

AC_SUBST(PROGNAME)
AC_SUBST(MULE)
AC_SUBST(HAVE_LIBFFI)
AC_SUBST(version)
AC_SUBST(VERSION)
AC_SUBST(old_version)
AC_SUBST(inststaticdir)
AC_SUBST(instvardir)
AC_SUBST(instvarsepdir)
AC_SUBST(sxe_srcdir)
AC_SUBST(emodsrcdir)
AC_SUBST(sxe_blddir)
AC_SUBST(emodblddir)
AC_SUBST(bindir)
AC_SUBST(datarootdir)
AC_SUBST(datadir)
AC_SUBST(statedir)
AC_SUBST(libdir)
AC_SUBST(mandir)
AC_SUBST(extra_includes)

AC_SUBST(prefix)
AC_SUBST(PREFIX_USER_DEFINED)
dnl Yo, Stephen Bourne!  I want to marry you!
PREFIX=$prefix
while true; do
  case "$PREFIX" in
    *\$* ) eval "PREFIX=\"${PREFIX}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(PREFIX)

AC_SUBST(exec_prefix)
AC_SUBST(EXEC_PREFIX_USER_DEFINED)
EXEC_PREFIX=$exec_prefix
while true; do
  case "$EXEC_PREFIX" in
    *\$* ) eval "EXEC_PREFIX=\"${EXEC_PREFIX}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(EXEC_PREFIX)

AC_SUBST(infodir)
AC_SUBST(INFODIR_USER_DEFINED)
INFODIR=$infodir
while true; do
  case "$INFODIR" in
    *\$* ) eval "INFODIR=\"${INFODIR}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(INFODIR)

AC_SUBST(infopath,$with_infopath)
AC_SUBST(INFOPATH_USER_DEFINED)
INFOPATH=$with_infopath
while true; do
  case "$INFOPATH" in
    *\$* ) eval "INFOPATH=\"${INFOPATH}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(INFOPATH)

if test -z "$with_module_path"; then
    with_module_path="~/.sxemacs/${configuration}/modules:${libdir}/${PROGNAME}/${configuration}/site-modules:${libdir}/${instvardir}/${configuration}/modules"
fi

AC_SUBST(module_path,$with_module_path)
AC_SUBST(MODULE_PATH_USER_DEFINED)
MODULE_PATH=$with_module_path
while true; do
  case "$MODULE_PATH" in
    *\$* ) eval "MODULE_PATH=\"${MODULE_PATH}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(MODULE_PATH)

if test -z "$with_package_prefix" ; then
  with_package_prefix=${prefix}/share/sxemacs
fi

if test -z "$with_package_path" && test -n "$with_package_prefix" ; then
  if test "$with_mule" = "yes" ; then
    with_package_path="~/.sxemacs/site-packages:~/.sxemacs/sxemacs-packages:~/.sxemacs/xemacs-packages:~/.sxemacs/mule-packages"
    with_package_path="${with_package_path}:${with_package_prefix}/site-packages:${with_package_prefix}/sxemacs-packages:${with_package_prefix}/xemacs-packages:${with_package_prefix}/mule-packages"
  else
    with_package_path="~/.sxemacs/site-packages:~/.sxemacs/sxemacs-packages:~/.sxemacs/xemacs-packages"
    with_package_path="${with_package_path}:${with_package_prefix}/site-packages:${with_package_prefix}/sxemacs-packages:${with_package_prefix}/xemacs-packages"
  fi
fi

AC_SUBST(package_path,$with_package_path)
AC_SUBST(PACKAGE_PATH_USER_DEFINED)
PACKAGE_PATH=$with_package_path
while true; do
  case "$PACKAGE_PATH" in
    *\$* ) eval "PACKAGE_PATH=\"${PACKAGE_PATH}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(PACKAGE_PATH)

AC_SUBST(lispdir, $with_lispdir)
AC_SUBST(LISPDIR_USER_DEFINED)
LISPDIR=$with_lispdir
while true; do
  case "$LISPDIR" in
    *\$* ) eval "LISPDIR=\"${LISPDIR}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(LISPDIR)

AC_SUBST(moduledir,$with_moduledir)
AC_SUBST(MODULEDIR_USER_DEFINED)
MODULEDIR=$with_moduledir
while true; do
  case "$MODULEDIR" in
    *\$* ) eval "MODULEDIR=\"${MODULEDIR}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(MODULEDIR)

AC_SUBST([sitelispdir], [$with_sitelispdir])
AC_SUBST([SITELISPDIR_USER_DEFINED])
SITELISPDIR=$sitelispdir
while true; do
  case "$SITELISPDIR" in
    *\$* ) eval "SITELISPDIR=\"${SITELISPDIR}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(SITELISPDIR)

AC_SUBST(sitemoduledir,$with_sitemoduledir)
AC_SUBST(SITEMODULEDIR_USER_DEFINED)
SITEMODULEDIR=$with_sitemoduledir
while true; do
  case "$SITEMODULEDIR" in
    *\$* ) eval "SITEMODULEDIR=\"${SITEMODULEDIR}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(SITEMODULEDIR)

AC_SUBST(etcdir,$with_etcdir)
AC_SUBST(ETCDIR_USER_DEFINED)
ETCDIR=$with_etcdir
while true; do
  case "$ETCDIR" in
    *\$* ) eval "ETCDIR=\"${ETCDIR}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(ETCDIR)

AC_SUBST(archlibdir,$with_archlibdir)
AC_SUBST(ARCHLIBDIR_USER_DEFINED)
ARCHLIBDIR=$with_archlibdir
while true; do
  case "$ARCHLIBDIR" in
    *\$* ) eval "ARCHLIBDIR=\"${ARCHLIBDIR}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(ARCHLIBDIR)

AC_SUBST(docdir,$with_docdir)
AC_SUBST(DOCDIR_USER_DEFINED)
DOCDIR=$with_docdir
while true; do
  case "$DOCDIR" in
    *\$* ) eval "DOCDIR=\"${DOCDIR}\"" ;;
    *) break ;;
  esac
done
AC_SUBST(DOCDIR)

AC_SUBST(docdir)
AC_SUBST(bitmapdir)

dnl The following flags combine all the information from:
dnl - command line options (user always gets priority)
dnl - user environment variables
dnl - determined by configure
dnl - the s&m header files (required for ellcc)
AC_SUBST(machfile)
AC_SUBST(opsysfile)
AC_SUBST(c_switch_general)
AC_SUBST(c_switch_window_system)
AC_SUBST(c_switch_all)
AC_SUBST(ld_switch_general)
AC_SUBST(ld_switch_window_system)
AC_SUBST(ld_switch_all)
AC_SUBST(ld_libs_general)
AC_SUBST(ld_libs_window_system)
AC_SUBST(ld_libs_all)
AC_SUBST(CFLAGS)
AC_SUBST(CPPFLAGS)
AC_SUBST(LDFLAGS)
RECURSIVE_MAKE_ARGS="\$(MFLAGS) CC='\$(CC)' CFLAGS='\$(CFLAGS)' LDFLAGS='\$(LDFLAGS)' CPPFLAGS='\$(CPPFLAGS)'"
if test -z "$MAKE"; then
        MAKE=make
fi
case `$MAKE --version 2>/dev/null` in
   GNU\ Make*)
        AM_MAKEFLAGS="-w $AM_MAKEFLAGS"
        RECURSIVE_MAKE_ARGS="-w $RECURSIVE_MAKE_ARGS"
   ;;
   *)
        echo ===================================
        echo $MAKE does not seem to be GNU Make
        echo If you find makefile errors please try using GNU Make as some
        echo autoconf constructs may not be proper for your make variant
        echo ===================================
   ;;
esac
AC_SUBST(RECURSIVE_MAKE_ARGS)
AC_SUBST(AM_MAKEFLAGS)

AC_SUBST(sound_cflags)
AC_SUBST(AR)
AC_SUBST(RANLIB)

AC_SUBST(SXEMACS_CC)
AC_SUBST(SXE_CFLAGS)

SXE_SUBST_CORE_OBJS()

SXE_SUBST_CRUFT_OBJS

dnl The default is yes
if test "$with_prefix" = "yes"; then
  AC_DEFINE([PREFIX_USER_DEFINED], [1], [Description here!])
fi

dnl Should this stay even though --with-site-modules is no longer an
dnl option?  It is used in emacs.c for when the -no-site-modules cmd line
dnl opt is used.  That cmd line opt definitely has usefullness.  Sebastian?
dnl --SY.
dnl The default is yes
if test "$with_site_modules" = "no"; then
  AC_DEFINE([INHIBIT_SITE_MODULES], [1], [Description here!])
fi

dnl SXE_SPACE(ac_configure_args, $ac_configure_args)
AC_DEFINE_UNQUOTED([EMACS_CONFIGURATION], ["$ac_cv_build"], [Description here!])
AC_DEFINE_UNQUOTED([EMACS_CONFIG_OPTIONS], ["$ac_configure_args"], [Description here!])

AC_SUBST([srcdir_equals_blddir_p])

dnl Following are deprecated
null_string=""
AC_DEFINE_UNQUOTED([LD_SWITCH_X_SITE], [$null_string], [Description here!])
AC_DEFINE_UNQUOTED([LD_SWITCH_X_SITE_AUX], [$null_string], [Description here!])
AC_DEFINE_UNQUOTED([C_SWITCH_X_SITE], [$null_string], [Description here!])
AC_DEFINE_UNQUOTED([LD_SWITCH_SITE], [$null_string], [Description here!])
AC_DEFINE_UNQUOTED([C_SWITCH_SITE], [$null_string], [Description here!])

dnl Note: as a general rule, *only* define things here that are not
dnl autodetected.  For things that are autodetected, define them
dnl at the point where the autodetection occurs or would occur,
dnl so that the user gets immediate feedback on the results of the
dnl autodetection.

if test "$GNU_MALLOC" = "yes"; then
        AC_DEFINE([GNU_MALLOC], [1], [Description here!])
        SXE_ADD_MEMALLOC_OBJS(vm-limit.o)
        if test "$doug_lea_malloc" != "yes"; then
                SXE_ADD_MEMALLOC_OBJS(gmalloc.o)
        fi
        if test "$with_error_checking_malloc" = "yes"; then
                dnl SXE_ADD_MEMALLOC_OBJS(free-hook.o)
                :
        fi
elif test "$with_system_malloc" = "yes" -o "$system_malloc" = "yes"; then
        AC_DEFINE([USE_SYSTEM_MALLOC], [1], [Description here!])
        AC_DEFINE([SYSTEM_MALLOC], [1], [Description here!])
elif test "$with_debug_malloc"  = "yes"; then
        AC_DEFINE([USE_DEBUG_MALLOC], [1], [Description here!])
        AC_DEFINE([USE_SYSTEM_MALLOC], [1], [Description here!])
        AC_DEFINE([SYSTEM_MALLOC], [1], [Description here!])
        SXE_APPEND(-ldmalloc, MEMALLOC_LIBS)
else
        SXE_ADD_MEMALLOC_OBJS([malloc.o])
fi
test "$GCC" = "yes" && \
        AC_DEFINE([USE_GCC], [1], [Description here!])
test "$with_external_widget" = "yes" && \
        AC_DEFINE([EXTERNAL_WIDGET], [1], [Description here!])
test "$with_quick_build" = "yes" && \
        AC_DEFINE([QUICK_BUILD], [1], [Description here!])
if test "$with_purify" = "yes"; then
        AC_DEFINE([PURIFY], [1], [Description here!])
        AC_DEFINE([XLIB_ILLEGAL_ACCESS], [1], [Description here!])
fi
if test "$with_quantify" = "yes"; then
        AC_DEFINE([QUANTIFY], [1], [Description here!])
        AC_DEFINE([XLIB_ILLEGAL_ACCESS], [1], [Description here!])
fi
test "$with_pop" = "yes" && \
        AC_DEFINE([MAIL_USE_POP], [1], [Description here!])
test "$with_hesiod" = "yes" && \
        AC_DEFINE([HESIOD], [1], [Description here!])
test "$with_regex_malloc" = "yes" && \
        AC_DEFINE([REGEX_MALLOC], [1], [Description here!])
test "$with_ipv6_cname" = "yes" && \
        AC_DEFINE([IPV6_CANONICALIZE], [1], [Description here!])
if test "$with_pdump" = "yes"; then
        AC_DEFINE([PDUMP], [1], [Description here!])    dnl deprecated!
        AC_DEFINE([WITH_PDUMP], [1], [Description here!])
fi

AM_CONDITIONAL([WITH_EXTW], [test "$with_external_widget" = "yes"])
AM_CONDITIONAL([WITH_PDUMP], [test "$with_pdump" = "yes"])
AC_SUBST([MEMALLOC_LIBS])
SXE_SUBST_MEMALLOC_OBJS


AC_DEFINE_UNQUOTED([USER_FULL_NAME], [pw->pw_gecos], [dnl
        USER_FULL_NAME returns a string that is the user's full name.
        It can assume that the variable `pw' points to the password file
        entry for this user.

        At some sites, the pw_gecos field contains the user's full name.
        If neither this nor any other field contains the right thing, use
        pw_name, giving the user's login name, since that is better than
        nothing.])

AC_DEFINE([SIGTYPE], [RETSIGTYPE], [SIGTYPE is the macro we actually use])
AC_DEFINE([SIGRETURN], [return], [SIGTYPE is the macro we actually use])

## finally, redefine VERSION; this has to be done after all tests on C sources
## were run because otherwise the symbol VERSION would be defined twice and
## the C compiler would warn, sigh, and due to this stupid -Werror flag we ...
## tadadada ... will fail to run _any_ C test successfully
AC_DEFINE_UNQUOTED([VERSION], ["$version"], [Version of SXEmacs.])

AH_TOP([
#ifndef INCLUDED_sxe_config_h_
#define INCLUDED_sxe_config_h_

#ifndef NOT_C_CODE
#if defined (__GNUC__)
#define alloca __builtin_alloca
#elif defined __DECC
#include <alloca.h>
#pragma intrinsic(alloca)
#elif defined __INTEL_COMPILER && defined HAVE_ALLOCA_H
/* defer #include to end of file */
#elif defined HAVE_ALLOCA_H
#include <alloca.h>
#elif defined(_AIX)
#pragma alloca
#elif ! defined (alloca)
void *alloca();
#endif
#endif  /* C code */
])

AH_BOTTOM([
/* The configuration script may define `opsysfile' to be the name of
   the s/...h file that describes your operating system.
   The file name is chosen based on the configuration name. */

#ifdef config_opsysfile
#include config_opsysfile
#endif

/* The configuration script may define `machfile' to be the name of
   the m/...h file that describes the machine you are using.
   The file name is chosen based on the configuration name. */

#ifdef config_machfile
#include config_machfile
#endif

/* basic system calls */
#if defined (INTERRUPTIBLE_IO) || defined (DEBUG_ENCAPSULATION)
# define ENCAPSULATE_READ
# define ENCAPSULATE_WRITE
#endif
#if defined (INTERRUPTIBLE_OPEN) || defined (MULE) || defined (DEBUG_ENCAPSULATION)
# define ENCAPSULATE_OPEN
#endif
#if defined (INTERRUPTIBLE_CLOSE) || defined (DEBUG_ENCAPSULATION)
# define ENCAPSULATE_CLOSE
#endif
/* stdio calls */
#if defined (INTERRUPTIBLE_IO) || defined (DEBUG_ENCAPSULATION)
# define ENCAPSULATE_FREAD
# define ENCAPSULATE_FWRITE
#endif
#if defined (INTERRUPTIBLE_OPEN) || defined (MULE) || defined (DEBUG_ENCAPSULATION)
# define ENCAPSULATE_FOPEN
#endif
#if defined (INTERRUPTIBLE_CLOSE) || defined (DEBUG_ENCAPSULATION)
# define ENCAPSULATE_FCLOSE
#endif

#if defined (HAVE_SOCKS) && !defined (DO_NOT_SOCKSIFY)
#define accept Raccept
#define bind Rbind
#define connect Rconnect
#define getsockname Rgetsockname
#define listen Rlisten
#endif                          /* HAVE_SOCKS && !DO_NOT_SOCKSIFY */

#ifndef NOT_C_CODE              /* Actually means C or C++ */
# if defined (__cplusplus)
/* Avoid C++ keywords used as ordinary C identifiers */
#  define class c_class
#  define new   c_new
#  define this  c_this
#  define catch c_catch
#  define EXTERN_C extern "C"
# else                          /* C code */
#  define EXTERN_C extern
# endif
#endif                          /* C or C++ */
/* Strictly speaking, only int or unsigned int are valid types in a
   bitfield.  In practice, we would like to use enums as bitfields.
   The following should just result in warning avoidance:
   warning: nonportable bit-field type */
#ifdef __GNUC__
#define enum_field(enumeration_type) enum enumeration_type
#else
#define enum_field(enumeration_type) unsigned int
#endif

#ifndef NOT_C_CODE
#if defined __INTEL_COMPILER && defined HAVE_ALLOCA_H
/* icc's alloca.h pulls in <features.h>,
   but that must be done after _GNU_SOURCE and friends are defined */
#include <alloca.h>
#endif
#endif                          /* C code */

#endif  /* INCLUDED_sxe_config_h_ */
])


dnl -------------------------------------------------------------------------
dnl -------------------------------
dnl Report on what we decided to do
dnl -------------------------------

dnl #### We should tag this as the _build_ environment.
dnl Before doing that, though, must check if tools care about line 1.

(
dnl /etc/osversion is on SONY NEWS-OS
if test -f /etc/osversion; then dnl SONY NEWS-OS
  echo "osversion: `cat /etc/osversion`"
else
  echo "uname -a: `uname -a`"
fi
echo ""
echo "$0 $ac_configure_args"
) > Installation

if test ! -z ${emacs_beta_version} ; then
  if test -z "${emacs_is_beta}" ; then
        sxemacs_betaname=".${emacs_beta_version}"
  else
        sxemacs_betaname="-b${emacs_beta_version}"
  fi
else
  sxemacs_betaname=""
fi

dnl -----------------
dnl Talking LFSL now!
dnl -----------------

dnl -----------------------------------
dnl Now generate config.h and Makefiles
dnl -----------------------------------

dnl This has to be called in order for this variable to get into config.status
AC_SUBST([internal_makefile_list])
# Remove any trailing slashes in these variables.
if test -n "$prefix"; then
        prefix=`echo '' "$prefix" | sed -e 's:^ ::' -e 's,\([[^/]]\)/*$,\1,'`
fi
if test -n "$exec_prefix"; then
        exec_prefix=`echo '' "$exec_prefix" | sed -e 's:^ ::' -e 's,\([[^/]]\)/*$,\1,'`
fi

make_ifeq="ifeq"
make_endif="endif"
make_else="else"
AC_SUBST([make_ifeq])
AC_SUBST([make_endif])
AC_SUBST([make_else])

dnl Coupla things needed for subst'ing into the sxemacs.desktop file
ABS_PROGNAME=${prefix}/bin/${PROGNAME}
ABS_ETCDIR=${ETCDIR}
SXE_CANONICALISE_PATH([ABS_PROGNAME])
SXE_CANONICALISE_PATH([ABS_ETCDIR])
AC_SUBST([ABS_PROGNAME])
AC_SUBST([ABS_ETCDIR])

AC_CONFIG_FILES([src/sxe-paths.h])
AC_CONFIG_FILES([Makefile])
AC_CONFIG_FILES([lib-src/Makefile])
AC_CONFIG_FILES([src/Makefile])
AC_CONFIG_FILES([src/ui/Makefile])
AC_CONFIG_FILES([src/ui/TTY/Makefile])
AC_CONFIG_FILES([src/ui/lwlib/Makefile])
AC_CONFIG_FILES([src/ui/X11/Makefile])
AC_CONFIG_FILES([src/events/Makefile])
AC_CONFIG_FILES([src/ent/Makefile])
AC_CONFIG_FILES([src/media/Makefile])
AC_CONFIG_FILES([src/mem/Makefile])
AC_CONFIG_FILES([src/database/Makefile])
AC_CONFIG_FILES([src/mule/Makefile])
AC_CONFIG_FILES([src/.gdbinit:src/gdbinit])
AC_CONFIG_FILES([src/.dbxrc:src/dbxrc])
AC_CONFIG_FILES([lisp/Makefile])
AC_CONFIG_FILES([info/Makefile])
AC_CONFIG_FILES([tests/Makefile])
AC_CONFIG_FILES([modules/Makefile])
AC_CONFIG_FILES([etc/Makefile])
AC_CONFIG_FILES([etc/sxemacs.desktop])
AC_CONFIG_FILES([sxemacs.pc])
AC_CONFIG_LINKS([.sxemacs.source.tree:])

AC_OUTPUT
SXE_SUMMARY