libs-base/configure.ac

# configure.ac for GNU Objective-C library
# Process this file with autoconf to produce a configure script.
#
#   Copyright (C) 1993,1994, 1995, 1996, 1997 Free Software Foundation, Inc.
#
#   Written by:  Andrew Kachites McCallum <mccallum@cs.rochester.edu>
#   Dept. of Computer Science, U. of Rochester, Rochester, NY  14627
#
#   This file is part of the GNU Objective-C library.
#
#   This library 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 2 of the License, or (at your option) any later version.
#   
#   This library 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 library; if not, write to the Free
#   Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
#   Boston, MA 02111 USA
builtin(include, config/objc-con-autoload.m4)dnl
builtin(include, config/objc-sys-dynamic.m4)dnl
builtin(include, config/procfs-exe-link.m4)dnl
builtin(include, config/procfs.m4)dnl
builtin(include, config/pathxml.m4)dnl
builtin(include, config/codeset.m4)dnl
builtin(include, config/addlibrarypath.m4)dnl

AC_INIT
AC_CONFIG_SRCDIR([Source/NSArray.m])

# If GNUSTEP_MAKEFILES is undefined, try to use gnustep-config to determine it.
if test -z "$GNUSTEP_MAKEFILES"; then
  GNUSTEP_MAKEFILES=`gnustep-config --variable=GNUSTEP_MAKEFILES 2>&5`
fi

if test -z "$GNUSTEP_MAKEFILES"; then
  AC_MSG_ERROR([You must have the gnustep-make package installed and set up the GNUSTEP_MAKEFILES environment variable to contain the path to the makefiles directory before configuring!])
fi

# We shouldn't be loading GNUstep.sh here.  It would load in a lot of
# variables which might get confused with the ones that will be used
# at runtime.  We will load it later once we have determined (and
# saved) the runtime configuration.

# This variable might get temporarily overwritten with the
# GNUSTEP_MAKEFILES of the runtime configuration, make sure we keep
# track of the original one.  CURRENT_GNUSTEP_MAKEFILES is the one
# that we use to locate the actual gnustep-make installation that 
# will build the software.
CURRENT_GNUSTEP_MAKEFILES="$GNUSTEP_MAKEFILES"

#--------------------------------------------------------------------
# Use config.guess, config.sub and install-sh provided by gnustep-make
#--------------------------------------------------------------------
AC_CONFIG_AUX_DIR($CURRENT_GNUSTEP_MAKEFILES)

#--------------------------------------------------------------------
# Use a .h file with #define's, instead of -D command-line switches
#--------------------------------------------------------------------
AC_CONFIG_HEADER(Headers/Additions/GNUstepBase/config.h)

#--------------------------------------------------------------------
# Determine the host, build, and target systems
#--------------------------------------------------------------------
AC_CANONICAL_TARGET([])

#---------------------------------------------------------------------
# Location of the GNUstep.conf config file (--with-config-file)
#---------------------------------------------------------------------
AC_MSG_CHECKING([for GNUstep configuration file to use at runtime])
GNUSTEP_CONFIG_FILE=""

# This requires gnustep-make > 1.13.0 to work.  For gnustep-make =
# 1.13.0 we would have to parse
# $CURRENT_GNUSTEP_MAKEFILES/$obj_dir/config.make, but $obj_dir is not defined
# yet at this stage in config, not sure if it's worth trying to make
# it work.  For gnustep-make < 1.13.0 we would have to parse
# $CURRENT_GNUSTEP_MAKEFILES/config.make.
GNUSTEP_MAKE_CONFIG=`(grep '^GNUSTEP_CONFIG_FILE *=' $CURRENT_GNUSTEP_MAKEFILES/config-noarch.make | sed -e 's/GNUSTEP_CONFIG_FILE *= *\(.*\)/\1/') 2>&5`

# So, for backwards compatiblity, we try the plain config.make too.
# This should work with gnustep-make < 1.13.0, and with 1.13.0 too if
# they haven't deleted the file.
if test "$GNUSTEP_MAKE_CONFIG"  = ""; then
  GNUSTEP_MAKE_CONFIG=`(grep '^GNUSTEP_CONFIG_FILE *=' $CURRENT_GNUSTEP_MAKEFILES/config.make | sed -e 's/GNUSTEP_CONFIG_FILE *= *\(.*\)/\1/') 2>&5`
fi

AC_ARG_WITH(config-file,
[  --with-config-file=PATH       Specify path to the GNUstep config file.
				This is the location to be used by the base
				library to locate path information at
				application or tool runtime.
				This file might not even exist now; it is
				not read at configure time.  The base library
				will only read it at runtime.
				If unspecified, this uses the same value as
				the GNUstep make package on unix-like systems,
				but uses ./GNUstep.conf on mingw so that
				it is relative to the location of the
				base library DLL.
				If a leading './' is specified, the path
				is taken to be relative to the base library
				linked runtime, not all operating systems
				can support this, so on some platforms you
				may need to specify the location of the
				config file using the GNUSTEP_CONFIG_FILE
				environment variable at runtime.
				If a trailing '/' is specified, the path is
				used for locating domains but no GNUstep
				config file is read at runtime.], 
  result="$withval",
  result="no"
)
if test "$result" != "no"
then
  GNUSTEP_CONFIG_FILE="$result"
fi
if test "$GNUSTEP_CONFIG_FILE" = ""; then
  case "$target_os" in
    mingw*)
      GNUSTEP_CONFIG_FILE=./GNUstep.conf ;;
    *)
      GNUSTEP_CONFIG_FILE="$GNUSTEP_MAKE_CONFIG" ;;
  esac
fi
AC_MSG_RESULT($GNUSTEP_CONFIG_FILE)

#-----------------------------------------------------------------
# Whether the GNUstep.conf file path can be set in the environment
# By default this is enabled on unix, but disabled on mswindows
# since the normal setup on mswindows is to have the config file
# located with the base library dll for runtime configuration and
# use the environment variable to control the developer config file
# location (used by gnustep-make when building).
#-----------------------------------------------------------------
case "$target_os" in
    mingw*)	enable_env_config=no;;
    *)		enable_env_config=yes;;
esac
AC_MSG_CHECKING([whether the GNUstep.conf file path can be set in the environment])
AC_ARG_ENABLE(environment-config-file, 
[  --disable-environment-config-file
                                Disables the use of the GNUSTEP_CONFIG_FILE
				environment variable to specify/override
				the location of the GNUstep config file
				at runtime.  This option is occasionally
				useful to disable the environment variable
				for sites which wish to 'lock down' users
				to always work with a specific system-wide
				configuration.  On unix-like systems the
				default is for this option to be enabled.
				It is disabled by default on windows systems
				so that the base library will not use a
				config file intended for the gnustep-make
				system (and containing unix-style paths
				which cannot be used by widnows apps).
				Normally this should be left at its default
				setting.], 
  ac_cv_environment_config_file=$enableval,
  ac_cv_environment_config_file=$enable_env_config)
if test "$ac_cv_environment_config_file" = "yes"; then
  AC_DEFINE(OPTION_NO_ENVIRONMENT, 0,
    [Enable GNUSTEP_CONFIG_FILE environment variable])
  AC_MSG_RESULT([yes])
else
  AC_DEFINE(OPTION_NO_ENVIRONMENT, 1,
    [Disable GNUSTEP_CONFIG_FILE environment variable])
  AC_MSG_RESULT([no: disabled from the command-line])
fi

#--------------------------------------------------------------------
# We are not trying to determine the default GNUstep paths to be
# used at runtime.  So all GNUSTEP_xxx variables from now on are to be
# considered as 'runtime' ones.  They refer to paths that might not
# make any sense now, but might make sense once gnustep-base is
# installed in its final location.
#---------------------------------------------------------------------

#
# Set 'standard' defaults for values from configuration file.
#
case "$target_os" in
  *)
    GNUSTEP_SYSTEM_ROOT=/usr/GNUstep/System
    GNUSTEP_LOCAL_ROOT=/usr/GNUstep/Local
    GNUSTEP_NETWORK_ROOT=/usr/GNUstep/Local
    GNUSTEP_USER_DIR=GNUstep
    GNUSTEP_USER_DEFAULTS_DIR=GNUstep/Defaults
    GNUSTEP_USER_CONFIG_FILE=.GNUstep.conf
    ;;
esac

#---------------------------------------------------------------------
# Now read/import the existing configuration file, if any
#---------------------------------------------------------------------

# Reading/importing an existing configuration file is good as it means
# the built-in default paths in the code will match those of your
# installation (or of the config file you specify).
# It can be annoying in certain cases though; this option lets you
# turn it off.
AC_MSG_CHECKING([if we should import an existing configuration file now])
AC_ARG_ENABLE(importing-config-file, 
[  --disable-importing-config-file
                                Disable importing of an existing GNUstep config
				file and use inbuilt defaults instead.],
  ac_cv_importing_config_file=$enableval,
  ac_cv_importing_config_file="yes")
if test "$ac_cv_importing_config_file" = "no"; then
  AC_MSG_RESULT([no: disabled from the command-line])
else
  AC_MSG_RESULT([yes])
fi


if test "$ac_cv_importing_config_file" = "yes" ;
then
  AC_MSG_CHECKING([for default GNUstep configuration file to use])
  AC_ARG_WITH(default-config,
[  --with-default-config=PATH   Specify path to a GNUstep config file to be
				imported at configure time (now) and used to
				provide default values for the base library
				to use at runtime if no GNUstep config file
				is found at runtime.  If this is not specified
				then the path from --with-config-file or from
				the gnustep-make package is used.],
    result="$withval",
    result="no"
  )
  if test "$result" != "no"
  then
    GNUSTEP_DEFAULT_CONFIG="$result"
  fi
  if test "$GNUSTEP_DEFAULT_CONFIG" = ""; then
    # No file to import has been specified.  We need to read the paths
    # from somewhere though!  GNUstep.sh might not have been sourced,
    # so at this stage we have no knowledge of what the paths must be.
    # The only place that we can read them from is the gnustep-make
    # GNUstep.conf file.
    # So we fall back to useing the make settings for the built-in ones.
    # However, on mingw these will be msys style paths, and we don't
    # want that ... so later on we convert these to portable relative
    # paths based on the directory in which the base library will be
    # installed.
    GNUSTEP_DEFAULT_CONFIG="$GNUSTEP_MAKE_CONFIG"
  fi
  AC_MSG_RESULT($GNUSTEP_DEFAULT_CONFIG)

  #
  # Only try importing if the default config file has been specified.
  #
  if test "$GNUSTEP_DEFAULT_CONFIG" != ""; then
    #
    # Use the default config file to override standard values.
    #
    if test ! -f "$GNUSTEP_DEFAULT_CONFIG"; then
      AC_MSG_RESULT([fail: file "$GNUSTEP_DEFAULT_CONFIG" does not exist])

      # Ohoh ... things are not going well.  We are asked to import
      # a config file that doesn't exist.  So all paths might be unset
      # and who knows what we'll end up hardcoding into gnustep-base.
      # It looks like we need to make sure the user knows what they
      # are doing, as there is a high chance they don't and might end
      # up with a confused/non-working system.  As far as we know, the
      # system might be already screwed.  If they don't want to import 
      # a config file (eg, they don't have one and they don't care about 
      # the hardcoded paths) they should just say so. ;-)
      AC_MSG_ERROR([Please run configure again with the --disable-importing-config-file option or specifying an alternative file using the --with-default-config= option])

    else
      AC_MSG_RESULT([trying to import "$GNUSTEP_DEFAULT_CONFIG"])
      AC_MSG_NOTICE([If this fails, please run configure again with the --disable-importing-config-file option or specifying an alternative file using the --with-default-config= option])
      . "$GNUSTEP_DEFAULT_CONFIG"
    fi
  fi
fi

# Now we have the problem of what to do if some of the paths were not
# set by GNUstep.conf (eg, old gnustep-make), or if no config file was
# read, or if the config file was corrupt.  We decide that the most
# likely case is an old gnustep-make, so by default we configure the
# other paths basing on GNUSTEP_*_ROOT.

# TODO/FIXME: We should really have better checks once the situation
# has stabilized.  This is a reasonable hack for now.

if test x"$GNUSTEP_MAKEFILES" = x""; then GNUSTEP_MAKEFILES=$GNUSTEP_SYSTEM_ROOT/Library/Makefiles; fi

if test x"$GNUSTEP_SYSTEM_USERS_DIR" = x""; then GNUSTEP_SYSTEM_USERS_DIR=/home; fi
if test x"$GNUSTEP_NETWORK_USERS_DIR" = x""; then GNUSTEP_NETWORK_USERS_DIR=/home; fi
if test x"$GNUSTEP_LOCAL_USERS_DIR" = x""; then GNUSTEP_LOCAL_USERS_DIR=/home; fi

if test x"$GNUSTEP_SYSTEM_APPS" = x""; then GNUSTEP_SYSTEM_APPS=$GNUSTEP_SYSTEM_ROOT/Applications; fi
if test x"$GNUSTEP_SYSTEM_ADMIN_APPS" = x""; then GNUSTEP_SYSTEM_ADMIN_APPS=$GNUSTEP_SYSTEM_ROOT/Applications/Admin; fi
if test x"$GNUSTEP_SYSTEM_WEB_APPS" = x""; then GNUSTEP_SYSTEM_WEB_APPS=$GNUSTEP_SYSTEM_ROOT/WebApplications; fi
if test x"$GNUSTEP_SYSTEM_TOOLS" = x""; then GNUSTEP_SYSTEM_TOOLS=$GNUSTEP_SYSTEM_ROOT/Tools; fi
if test x"$GNUSTEP_SYSTEM_ADMIN_TOOLS" = x""; then GNUSTEP_SYSTEM_ADMIN_TOOLS=$GNUSTEP_SYSTEM_ROOT/Tools/Admin; fi
if test x"$GNUSTEP_SYSTEM_LIBRARY" = x""; then GNUSTEP_SYSTEM_LIBRARY=$GNUSTEP_SYSTEM_ROOT/Library; fi
if test x"$GNUSTEP_SYSTEM_LIBRARIES" = x""; then GNUSTEP_SYSTEM_LIBRARIES=$GNUSTEP_SYSTEM_LIBRARY/Libraries; fi
if test x"$GNUSTEP_SYSTEM_HEADERS" = x""; then GNUSTEP_SYSTEM_HEADERS=$GNUSTEP_SYSTEM_LIBRARY/Headers; fi
if test x"$GNUSTEP_SYSTEM_DOC" = x""; then GNUSTEP_SYSTEM_DOC=$GNUSTEP_SYSTEM_LIBRARY/Documentation; fi
if test x"$GNUSTEP_SYSTEM_DOC_MAN" = x""; then GNUSTEP_SYSTEM_DOC_MAN=$GNUSTEP_SYSTEM_LIBRARY/Documentation/man; fi
if test x"$GNUSTEP_SYSTEM_DOC_INFO" = x""; then GNUSTEP_SYSTEM_DOC_INFO=$GNUSTEP_SYSTEM_LIBRARY/Documentation/info; fi

if test x"$GNUSTEP_NETWORK_APPS" = x""; then GNUSTEP_NETWORK_APPS=$GNUSTEP_NETWORK_ROOT/Applications; fi
if test x"$GNUSTEP_NETWORK_ADMIN_APPS" = x""; then GNUSTEP_NETWORK_ADMIN_APPS=$GNUSTEP_NETWORK_ROOT/Applications/Admin; fi
if test x"$GNUSTEP_NETWORK_WEB_APPS" = x""; then GNUSTEP_NETWORK_APPS=$GNUSTEP_NETWORK_ROOT/WebApplications; fi
if test x"$GNUSTEP_NETWORK_TOOLS" = x""; then GNUSTEP_NETWORK_TOOLS=$GNUSTEP_NETWORK_ROOT/Tools; fi
if test x"$GNUSTEP_NETWORK_ADMIN_TOOLS" = x""; then GNUSTEP_NETWORK_ADMIN_TOOLS=$GNUSTEP_NETWORK_ROOT/Tools/Admin; fi
if test x"$GNUSTEP_NETWORK_LIBRARY" = x""; then GNUSTEP_NETWORK_LIBRARY=$GNUSTEP_NETWORK_ROOT/Library; fi
if test x"$GNUSTEP_NETWORK_LIBRARIES" = x""; then GNUSTEP_NETWORK_LIBRARIES=$GNUSTEP_NETWORK_LIBRARY/Libraries; fi
if test x"$GNUSTEP_NETWORK_HEADERS" = x""; then GNUSTEP_NETWORK_HEADERS=$GNUSTEP_NETWORK_LIBRARY/Headers; fi
if test x"$GNUSTEP_NETWORK_DOC" = x""; then GNUSTEP_NETWORK_DOC=$GNUSTEP_NETWORK_LIBRARY/Documentation; fi
if test x"$GNUSTEP_NETWORK_DOC_MAN" = x""; then GNUSTEP_NETWORK_DOC_MAN=$GNUSTEP_NETWORK_LIBRARY/Documentation/man; fi
if test x"$GNUSTEP_NETWORK_DOC_INFO" = x""; then GNUSTEP_NETWORK_DOC_INFO=$GNUSTEP_NETWORK_LIBRARY/Documentation/info; fi

if test x"$GNUSTEP_LOCAL_APPS" = x""; then GNUSTEP_LOCAL_APPS=$GNUSTEP_LOCAL_ROOT/Applications; fi
if test x"$GNUSTEP_LOCAL_ADMIN_APPS" = x""; then GNUSTEP_LOCAL_ADMIN_APPS=$GNUSTEP_LOCAL_ROOT/Applications/Admin; fi
if test x"$GNUSTEP_LOCAL_WEB_APPS" = x""; then GNUSTEP_LOCAL_APPS=$GNUSTEP_LOCAL_ROOT/WebApplications; fi
if test x"$GNUSTEP_LOCAL_TOOLS" = x""; then GNUSTEP_LOCAL_TOOLS=$GNUSTEP_LOCAL_ROOT/Tools; fi
if test x"$GNUSTEP_LOCAL_ADMIN_TOOLS" = x""; then GNUSTEP_LOCAL_ADMIN_TOOLS=$GNUSTEP_LOCAL_ROOT/Tools/Admin; fi
if test x"$GNUSTEP_LOCAL_LIBRARY" = x""; then GNUSTEP_LOCAL_LIBRARY=$GNUSTEP_LOCAL_ROOT/Library; fi
if test x"$GNUSTEP_LOCAL_LIBRARIES" = x""; then GNUSTEP_LOCAL_LIBRARIES=$GNUSTEP_LOCAL_LIBRARY/Libraries; fi
if test x"$GNUSTEP_LOCAL_HEADERS" = x""; then GNUSTEP_LOCAL_HEADERS=$GNUSTEP_LOCAL_LIBRARY/Headers; fi
if test x"$GNUSTEP_LOCAL_DOC" = x""; then GNUSTEP_LOCAL_DOC=$GNUSTEP_LOCAL_LIBRARY/Documentation; fi
if test x"$GNUSTEP_LOCAL_DOC_MAN" = x""; then GNUSTEP_LOCAL_DOC_MAN=$GNUSTEP_LOCAL_LIBRARY/Documentation/man; fi
if test x"$GNUSTEP_LOCAL_DOC_INFO" = x""; then GNUSTEP_LOCAL_DOC_INFO=$GNUSTEP_LOCAL_LIBRARY/Documentation/info; fi

if test x"$GNUSTEP_USER_DIR_APPS" = x""; then GNUSTEP_USER_DIR_APPS=$GNUSTEP_USER_DIR/Applications; fi
if test x"$GNUSTEP_USER_DIR_ADMIN_APPS" = x""; then GNUSTEP_USER_DIR_ADMIN_APPS=$GNUSTEP_USER_DIR/Applications/Admin; fi
if test x"$GNUSTEP_USER_DIR_WEB_APPS" = x""; then GNUSTEP_USER_DIR_APPS=$GNUSTEP_USER_DIR/WebApplications; fi
if test x"$GNUSTEP_USER_DIR_TOOLS" = x""; then GNUSTEP_USER_DIR_TOOLS=$GNUSTEP_USER_DIR/Tools; fi
if test x"$GNUSTEP_USER_DIR_ADMIN_TOOLS" = x""; then GNUSTEP_USER_DIR_ADMIN_TOOLS=$GNUSTEP_USER_DIR/Tools/Admin; fi
if test x"$GNUSTEP_USER_DIR_LIBRARY" = x""; then GNUSTEP_USER_DIR_LIBRARY=$GNUSTEP_USER_DIR/Library; fi
if test x"$GNUSTEP_USER_DIR_LIBRARIES" = x""; then GNUSTEP_USER_DIR_LIBRARIES=$GNUSTEP_USER_DIR/Libraries; fi
if test x"$GNUSTEP_USER_DIR_HEADERS" = x""; then GNUSTEP_USER_DIR_HEADERS=$GNUSTEP_USER_DIR/Headers; fi
if test x"$GNUSTEP_USER_DIR_DOC" = x""; then GNUSTEP_USER_DIR_DOC=$GNUSTEP_USER_DIR/Documentation; fi
if test x"$GNUSTEP_USER_DIR_DOC_MAN" = x""; then GNUSTEP_USER_DIR_DOC_MAN=$GNUSTEP_USER_DIR/Documentation/man; fi
if test x"$GNUSTEP_USER_DIR_DOC_INFO" = x""; then GNUSTEP_USER_DIR_DOC_INFO=$GNUSTEP_USER_DIR/Documentation/info; fi

#
# If we are on mingw, we now want to convert the paths to relative
# paths (relative to libgnustep-base.dll).
#
# TODO: To do it properly, we ought to allow the user to configure
# the installation domain at configure time!  This assumes we always
# install into System.
#
case "$target_os" in
  mingw*)
    GNUSTEP_BASE_PATH="$GNUSTEP_SYSTEM_TOOLS"

    # TODO: Improve this hack.
    # According to Wikipedia, this is the default for Windows 2000,
    # Windows XP and Windows Server 2003.  For Windows Vista this will
    # change to C:\Users.  The directory name needs to be localized though
    # (and the disk may need changing as well ?).
    GNUSTEP_SYSTEM_USERS_DIR="C:\Documents and Settings"
    GNUSTEP_NETWORK_USERS_DIR="C:\Documents and Settings"
    GNUSTEP_LOCAL_USERS_DIR="C:\Documents and Settings"

    GNUSTEP_SYSTEM_APPS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_SYSTEM_APPS`
    GNUSTEP_SYSTEM_ADMIN_APPS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_SYSTEM_ADMIN_APPS`
    GNUSTEP_SYSTEM_WEB_APPS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_SYSTEM_WEB_APPS`
    GNUSTEP_SYSTEM_TOOLS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_SYSTEM_TOOLS`
    GNUSTEP_SYSTEM_ADMIN_TOOLS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_SYSTEM_ADMIN_TOOLS`
    GNUSTEP_SYSTEM_LIBRARY=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_SYSTEM_LIBRARY`
    GNUSTEP_SYSTEM_LIBRARIES=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_SYSTEM_LIBRARIES`
    GNUSTEP_SYSTEM_HEADERS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_SYSTEM_HEADERS`
    GNUSTEP_SYSTEM_DOC=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_SYSTEM_DOC`
    GNUSTEP_SYSTEM_DOC_MAN=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_SYSTEM_DOC_MAN`
    GNUSTEP_SYSTEM_DOC_INFO=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_SYSTEM_DOC_INFO`

    GNUSTEP_NETWORK_APPS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_NETWORK_APPS`
    GNUSTEP_NETWORK_ADMIN_APPS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_NETWORK_ADMIN_APPS`
    GNUSTEP_NETWORK_WEB_APPS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_NETWORK_WEB_APPS`
    GNUSTEP_NETWORK_TOOLS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_NETWORK_TOOLS`
    GNUSTEP_NETWORK_ADMIN_TOOLS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_NETWORK_ADMIN_TOOLS`
    GNUSTEP_NETWORK_LIBRARY=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_NETWORK_LIBRARY`
    GNUSTEP_NETWORK_LIBRARIES=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_NETWORK_LIBRARIES`
    GNUSTEP_NETWORK_HEADERS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_NETWORK_HEADERS`
    GNUSTEP_NETWORK_DOC=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_NETWORK_DOC`
    GNUSTEP_NETWORK_DOC_MAN=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_NETWORK_DOC_MAN`
    GNUSTEP_NETWORK_DOC_INFO=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_NETWORK_DOC_INFO`

    GNUSTEP_LOCAL_APPS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_LOCAL_APPS`
    GNUSTEP_LOCAL_ADMIN_APPS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_LOCAL_ADMIN_APPS`
    GNUSTEP_LOCAL_WEB_APPS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_LOCAL_WEB_APPS`
    GNUSTEP_LOCAL_TOOLS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_LOCAL_TOOLS`
    GNUSTEP_LOCAL_ADMIN_TOOLS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_LOCAL_ADMIN_TOOLS`
    GNUSTEP_LOCAL_LIBRARY=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_LOCAL_LIBRARY`
    GNUSTEP_LOCAL_LIBRARIES=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_LOCAL_LIBRARIES`
    GNUSTEP_LOCAL_HEADERS=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_LOCAL_HEADERS`
    GNUSTEP_LOCAL_DOC=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_LOCAL_DOC`
    GNUSTEP_LOCAL_DOC_MAN=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_LOCAL_DOC_MAN`
    GNUSTEP_LOCAL_DOC_INFO=`$GNUSTEP_MAKEFILES/relative_path.sh $GNUSTEP_BASE_PATH $GNUSTEP_LOCAL_DOC_INFO`
# It would be nice to now store this stuff into a ./GNUstep.conf file
# installed with gnustep-base.dll.  This would clarify.
    ;;
esac

#
# Now, we want to print out the paths that we're going to hardcode
# into gnustep-base.  This is to help users in finding
# misconfigurations.
#
AC_MSG_NOTICE([We store the following filesystem layout into gnustep-base, to be used when no config file is found])
AC_MSG_CHECKING([for Makefiles directory])
AC_MSG_RESULT($GNUSTEP_MAKEFILES)
AC_MSG_CHECKING([for user directory])
AC_MSG_RESULT($GNUSTEP_USER_DIR)
AC_MSG_CHECKING([for user defaults directory])
AC_MSG_RESULT($GNUSTEP_USER_DEFAULTS_DIR)
AC_MSG_CHECKING([for user config file])
AC_MSG_RESULT($GNUSTEP_USER_CONFIG_FILE)

AC_MSG_CHECKING([for System Applications directory])
AC_MSG_RESULT($GNUSTEP_SYSTEM_APPS)
AC_MSG_CHECKING([for System Admin Applications directory])
AC_MSG_RESULT($GNUSTEP_SYSTEM_ADMIN_APPS)
AC_MSG_CHECKING([for System Web Applications directory])
AC_MSG_RESULT($GNUSTEP_SYSTEM_WEB_APPS)
AC_MSG_CHECKING([for System Tools directory])
AC_MSG_RESULT($GNUSTEP_SYSTEM_TOOLS)
AC_MSG_CHECKING([for System Admin Tools directory])
AC_MSG_RESULT($GNUSTEP_SYSTEM_ADMIN_TOOLS)
AC_MSG_CHECKING([for System Library directory])
AC_MSG_RESULT($GNUSTEP_SYSTEM_LIBRARY)
AC_MSG_CHECKING([for System Libraries directory])
AC_MSG_RESULT($GNUSTEP_SYSTEM_LIBRARIES)
AC_MSG_CHECKING([for System Headers directory])
AC_MSG_RESULT($GNUSTEP_SYSTEM_HEADERS)
AC_MSG_CHECKING([for System Documentation directory])
AC_MSG_RESULT($GNUSTEP_SYSTEM_DOC)
AC_MSG_CHECKING([for System Info Documentation directory])
AC_MSG_RESULT($GNUSTEP_SYSTEM_DOC_INFO)
AC_MSG_CHECKING([for System Man Documentation directory])
AC_MSG_RESULT($GNUSTEP_SYSTEM_DOC_MAN)

AC_MSG_CHECKING([for Network Applications directory])
AC_MSG_RESULT($GNUSTEP_NETWORK_APPS)
AC_MSG_CHECKING([for Network Admin Applications directory])
AC_MSG_RESULT($GNUSTEP_NETWORK_ADMIN_APPS)
AC_MSG_CHECKING([for Network Web Applications directory])
AC_MSG_RESULT($GNUSTEP_NETWORK_WEB_APPS)
AC_MSG_CHECKING([for Network Tools directory])
AC_MSG_RESULT($GNUSTEP_NETWORK_TOOLS)
AC_MSG_CHECKING([for Network Admin Tools directory])
AC_MSG_RESULT($GNUSTEP_NETWORK_ADMIN_TOOLS)
AC_MSG_CHECKING([for Network Library directory])
AC_MSG_RESULT($GNUSTEP_NETWORK_LIBRARY)
AC_MSG_CHECKING([for Network Libraries directory])
AC_MSG_RESULT($GNUSTEP_NETWORK_LIBRARIES)
AC_MSG_CHECKING([for Network Headers directory])
AC_MSG_RESULT($GNUSTEP_NETWORK_HEADERS)
AC_MSG_CHECKING([for Network Documentation directory])
AC_MSG_RESULT($GNUSTEP_NETWORK_DOC)
AC_MSG_CHECKING([for Network Info Documentation directory])
AC_MSG_RESULT($GNUSTEP_NETWORK_DOC_INFO)
AC_MSG_CHECKING([for Network Man Documentation directory])
AC_MSG_RESULT($GNUSTEP_NETWORK_DOC_MAN)

AC_MSG_CHECKING([for Local Applications directory])
AC_MSG_RESULT($GNUSTEP_LOCAL_APPS)
AC_MSG_CHECKING([for Local Admin Applications directory])
AC_MSG_RESULT($GNUSTEP_LOCAL_ADMIN_APPS)
AC_MSG_CHECKING([for Local Web Applications directory])
AC_MSG_RESULT($GNUSTEP_LOCAL_WEB_APPS)
AC_MSG_CHECKING([for Local Tools directory])
AC_MSG_RESULT($GNUSTEP_LOCAL_TOOLS)
AC_MSG_CHECKING([for Local Admin Tools directory])
AC_MSG_RESULT($GNUSTEP_LOCAL_ADMIN_TOOLS)
AC_MSG_CHECKING([for Local Library directory])
AC_MSG_RESULT($GNUSTEP_LOCAL_LIBRARY)
AC_MSG_CHECKING([for Local Libraries directory])
AC_MSG_RESULT($GNUSTEP_LOCAL_LIBRARIES)
AC_MSG_CHECKING([for Local Headers directory])
AC_MSG_RESULT($GNUSTEP_LOCAL_HEADERS)
AC_MSG_CHECKING([for Local Documentation directory])
AC_MSG_RESULT($GNUSTEP_LOCAL_DOC)
AC_MSG_CHECKING([for Local Info Documentation directory])
AC_MSG_RESULT($GNUSTEP_LOCAL_DOC_INFO)
AC_MSG_CHECKING([for Local Man Documentation directory])
AC_MSG_RESULT($GNUSTEP_LOCAL_DOC_MAN)

AC_MSG_CHECKING([for User Applications directory])
AC_MSG_RESULT($GNUSTEP_USER_DIR_APPS)
AC_MSG_CHECKING([for User Admin Applications directory])
AC_MSG_RESULT($GNUSTEP_USER_DIR_ADMIN_APPS)
AC_MSG_CHECKING([for User Web Applications directory])
AC_MSG_RESULT($GNUSTEP_USER_DIR_WEB_APPS)
AC_MSG_CHECKING([for User Tools directory])
AC_MSG_RESULT($GNUSTEP_USER_DIR_TOOLS)
AC_MSG_CHECKING([for User Admin Tools directory])
AC_MSG_RESULT($GNUSTEP_USER_DIR_ADMIN_TOOLS)
AC_MSG_CHECKING([for User Library directory])
AC_MSG_RESULT($GNUSTEP_USER_DIR_LIBRARY)
AC_MSG_CHECKING([for User Libraries directory])
AC_MSG_RESULT($GNUSTEP_USER_DIR_LIBRARIES)
AC_MSG_CHECKING([for User Headers directory])
AC_MSG_RESULT($GNUSTEP_USER_DIR_HEADERS)
AC_MSG_CHECKING([for User Documentation directory])
AC_MSG_RESULT($GNUSTEP_USER_DIR_DOC)
AC_MSG_CHECKING([for User Info Documentation directory])
AC_MSG_RESULT($GNUSTEP_USER_DIR_DOC_INFO)
AC_MSG_CHECKING([for User Man Documentation directory])
AC_MSG_RESULT($GNUSTEP_USER_DIR_DOC_MAN)

AC_MSG_CHECKING([for System User directory])
AC_MSG_RESULT($GNUSTEP_SYSTEM_USERS_DIR)
AC_MSG_CHECKING([for Network User directory])
AC_MSG_RESULT($GNUSTEP_NETWORK_USERS_DIR)
AC_MSG_CHECKING([for Local User directory])
AC_MSG_RESULT($GNUSTEP_LOCAL_USERS_DIR)

#
# Set the default configuration file values in config.h to be hard-coded
# into NSPathUtilities.m
#
GNUSTEP_MAKEFILES=`echo $GNUSTEP_MAKEFILES|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_MAKEFILES,
  "$GNUSTEP_MAKEFILES",
  [Built in default value for GNUstep Makefiles])
GNUSTEP_USER_DIR=`echo $GNUSTEP_USER_DIR|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DIR,
  "$GNUSTEP_USER_DIR",
  [Built in default value for GNUstep user directory])
GNUSTEP_USER_DEFAULTS_DIR=`echo $GNUSTEP_USER_DEFAULTS_DIR|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DEFAULTS_DIR,
  "$GNUSTEP_USER_DEFAULTS_DIR",
  [Built in default value for GNUstep user defaults directory])
GNUSTEP_USER_CONFIG_FILE=`echo $GNUSTEP_USER_CONFIG_FILE|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_CONFIG_FILE,
  "$GNUSTEP_USER_CONFIG_FILE",
  [Built in default value for GNUstep user config file])
GNUSTEP_CONFIG_FILE=`echo $GNUSTEP_CONFIG_FILE|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_CONFIG_FILE,
  "$GNUSTEP_CONFIG_FILE",
  [Built in default value for GNUstep config file])

#
# SYSTEM domain paths
#
GNUSTEP_SYSTEM_APPS=`echo $GNUSTEP_SYSTEM_APPS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_SYSTEM_APPS,
  "$GNUSTEP_SYSTEM_APPS",
  [Built in default value for GNUstep system apps])

GNUSTEP_SYSTEM_ADMIN_APPS=`echo $GNUSTEP_SYSTEM_ADMIN_APPS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_SYSTEM_ADMIN_APPS,
  "$GNUSTEP_SYSTEM_ADMIN_APPS",
  [Built in default value for GNUstep system apps])

GNUSTEP_SYSTEM_WEB_APPS=`echo $GNUSTEP_SYSTEM_WEB_APPS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_SYSTEM_WEB_APPS,
  "$GNUSTEP_SYSTEM_WEB_APPS",
  [Built in default value for GNUstep web apps])

GNUSTEP_SYSTEM_TOOLS=`echo $GNUSTEP_SYSTEM_TOOLS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_SYSTEM_TOOLS,
  "$GNUSTEP_SYSTEM_TOOLS",
  [Built in default value for GNUstep system tools])

GNUSTEP_SYSTEM_ADMIN_TOOLS=`echo $GNUSTEP_SYSTEM_ADMIN_TOOLS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_SYSTEM_ADMIN_TOOLS,
  "$GNUSTEP_SYSTEM_ADMIN_TOOLS",
  [Built in default value for GNUstep system tools])

GNUSTEP_SYSTEM_LIBRARY=`echo $GNUSTEP_SYSTEM_LIBRARY|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_SYSTEM_LIBRARY,
  "$GNUSTEP_SYSTEM_LIBRARY",
  [Built in default value for GNUstep system library])

GNUSTEP_SYSTEM_LIBRARIES=`echo $GNUSTEP_SYSTEM_LIBRARIES|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_SYSTEM_LIBRARIES,
  "$GNUSTEP_SYSTEM_LIBRARIES",
  [Built in default value for GNUstep system libraries])

GNUSTEP_SYSTEM_HEADERS=`echo $GNUSTEP_SYSTEM_HEADERS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_SYSTEM_HEADERS,
  "$GNUSTEP_SYSTEM_HEADERS",
  [Built in default value for GNUstep system headers])

GNUSTEP_SYSTEM_DOC=`echo $GNUSTEP_SYSTEM_DOC|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_SYSTEM_DOC,
  "$GNUSTEP_SYSTEM_DOC",
  [Built in default value for GNUstep system documentation])

GNUSTEP_SYSTEM_DOC_MAN=`echo $GNUSTEP_SYSTEM_DOC_MAN|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_SYSTEM_DOC_MAN,
  "$GNUSTEP_SYSTEM_DOC_MAN",
  [Built in default value for GNUstep system manpages documentation])

GNUSTEP_SYSTEM_DOC_INFO=`echo $GNUSTEP_SYSTEM_DOC_INFO|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_SYSTEM_DOC_INFO,
  "$GNUSTEP_SYSTEM_DOC_INFO",
  [Built in default value for GNUstep system info documentation])

#
# NETWORK domain paths
#
GNUSTEP_NETWORK_APPS=`echo $GNUSTEP_NETWORK_APPS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_NETWORK_APPS,
  "$GNUSTEP_NETWORK_APPS",
  [Built in default value for GNUstep network apps])

GNUSTEP_NETWORK_ADMIN_APPS=`echo $GNUSTEP_NETWORK_ADMIN_APPS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_NETWORK_ADMIN_APPS,
  "$GNUSTEP_NETWORK_ADMIN_APPS",
  [Built in default value for GNUstep network apps])

GNUSTEP_NETWORK_WEB_APPS=`echo $GNUSTEP_NETWORK_WEB_APPS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_NETWORK_WEB_APPS,
  "$GNUSTEP_NETWORK_WEB_APPS",
  [Built in default value for GNUstep network web apps])

GNUSTEP_NETWORK_TOOLS=`echo $GNUSTEP_NETWORK_TOOLS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_NETWORK_TOOLS,
  "$GNUSTEP_NETWORK_TOOLS",
  [Built in default value for GNUstep network tools])

GNUSTEP_NETWORK_ADMIN_TOOLS=`echo $GNUSTEP_NETWORK_ADMIN_TOOLS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_NETWORK_ADMIN_TOOLS,
  "$GNUSTEP_NETWORK_ADMIN_TOOLS",
  [Built in default value for GNUstep system tools])

GNUSTEP_NETWORK_LIBRARY=`echo $GNUSTEP_NETWORK_LIBRARY|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_NETWORK_LIBRARY,
  "$GNUSTEP_NETWORK_LIBRARY",
  [Built in default value for GNUstep network library])

GNUSTEP_NETWORK_LIBRARIES=`echo $GNUSTEP_NETWORK_LIBRARIES|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_NETWORK_LIBRARIES,
  "$GNUSTEP_NETWORK_LIBRARIES",
  [Built in default value for GNUstep network libraries])

GNUSTEP_NETWORK_HEADERS=`echo $GNUSTEP_NETWORK_HEADERS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_NETWORK_HEADERS,
  "$GNUSTEP_NETWORK_HEADERS",
  [Built in default value for GNUstep network headers])

GNUSTEP_NETWORK_DOC=`echo $GNUSTEP_NETWORK_DOC|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_NETWORK_DOC,
  "$GNUSTEP_NETWORK_DOC",
  [Built in default value for GNUstep network documentation])

GNUSTEP_NETWORK_DOC_MAN=`echo $GNUSTEP_NETWORK_DOC_MAN|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_NETWORK_DOC_MAN,
  "$GNUSTEP_NETWORK_DOC_MAN",
  [Built in default value for GNUstep network manpages documentation])

GNUSTEP_NETWORK_DOC_INFO=`echo $GNUSTEP_NETWORK_DOC_INFO|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_NETWORK_DOC_INFO,
  "$GNUSTEP_NETWORK_DOC_INFO",
  [Built in default value for GNUstep network info documentation])

#
# LOCAL domain paths
#
GNUSTEP_LOCAL_APPS=`echo $GNUSTEP_LOCAL_APPS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_APPS,
  "$GNUSTEP_LOCAL_APPS",
  [Built in default value for GNUstep local apps])

GNUSTEP_LOCAL_ADMIN_APPS=`echo $GNUSTEP_LOCAL_ADMIN_APPS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_ADMIN_APPS,
  "$GNUSTEP_LOCAL_ADMIN_APPS",
  [Built in default value for GNUstep local apps])

GNUSTEP_LOCAL_WEB_APPS=`echo $GNUSTEP_LOCAL_WEB_APPS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_WEB_APPS,
  "$GNUSTEP_LOCAL_WEB_APPS",
  [Built in default value for GNUstep local web apps])

GNUSTEP_LOCAL_TOOLS=`echo $GNUSTEP_LOCAL_TOOLS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_TOOLS,
  "$GNUSTEP_LOCAL_TOOLS",
  [Built in default value for GNUstep local tools])

GNUSTEP_LOCAL_ADMIN_TOOLS=`echo $GNUSTEP_LOCAL_ADMIN_TOOLS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_ADMIN_TOOLS,
  "$GNUSTEP_LOCAL_ADMIN_TOOLS",
  [Built in default value for GNUstep local tools])

GNUSTEP_LOCAL_LIBRARY=`echo $GNUSTEP_LOCAL_LIBRARY|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_LIBRARY,
  "$GNUSTEP_LOCAL_LIBRARY",
  [Built in default value for GNUstep local library])

GNUSTEP_LOCAL_LIBRARIES=`echo $GNUSTEP_LOCAL_LIBRARIES|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_LIBRARIES,
  "$GNUSTEP_LOCAL_LIBRARIES",
  [Built in default value for GNUstep local libraries])

GNUSTEP_LOCAL_HEADERS=`echo $GNUSTEP_LOCAL_HEADERS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_HEADERS,
  "$GNUSTEP_LOCAL_HEADERS",
  [Built in default value for GNUstep local headers])

GNUSTEP_LOCAL_DOC=`echo $GNUSTEP_LOCAL_DOC|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_DOC,
  "$GNUSTEP_LOCAL_DOC",
  [Built in default value for GNUstep local documentation])

GNUSTEP_LOCAL_DOC_MAN=`echo $GNUSTEP_LOCAL_DOC_MAN|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_DOC_MAN,
  "$GNUSTEP_LOCAL_DOC_MAN",
  [Built in default value for GNUstep local manpages documentation])

GNUSTEP_LOCAL_DOC_INFO=`echo $GNUSTEP_LOCAL_DOC_INFO|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_DOC_INFO,
  "$GNUSTEP_LOCAL_DOC_INFO",
  [Built in default value for GNUstep local info documentation])

#
# USER_DIR domain paths
#
GNUSTEP_USER_DIR_APPS=`echo $GNUSTEP_USER_DIR_APPS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DIR_APPS,
  "$GNUSTEP_USER_DIR_APPS",
  [Built in default value for GNUstep user_dir apps])

GNUSTEP_USER_DIR_ADMIN_APPS=`echo $GNUSTEP_USER_DIR_ADMIN_APPS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DIR_ADMIN_APPS,
  "$GNUSTEP_USER_DIR_ADMIN_APPS",
  [Built in default value for GNUstep user_dir admin apps])

GNUSTEP_USER_DIR_WEB_APPS=`echo $GNUSTEP_USER_DIR_WEB_APPS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DIR_WEB_APPS,
  "$GNUSTEP_USER_DIR_WEB_APPS",
  [Built in default value for GNUstep user_dir web apps])

GNUSTEP_USER_DIR_TOOLS=`echo $GNUSTEP_USER_DIR_TOOLS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DIR_TOOLS,
  "$GNUSTEP_USER_DIR_TOOLS",
  [Built in default value for GNUstep user_dir tools])

GNUSTEP_USER_DIR_ADMIN_TOOLS=`echo $GNUSTEP_USER_DIR_ADMIN_TOOLS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DIR_ADMIN_TOOLS,
  "$GNUSTEP_USER_DIR_ADMIN_TOOLS",
  [Built in default value for GNUstep user_dir tools])

GNUSTEP_USER_DIR_LIBRARY=`echo $GNUSTEP_USER_DIR_LIBRARY|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DIR_LIBRARY,
  "$GNUSTEP_USER_DIR_LIBRARY",
  [Built in default value for GNUstep user_dir library])

GNUSTEP_USER_DIR_LIBRARIES=`echo $GNUSTEP_USER_DIR_LIBRARIES|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DIR_LIBRARIES,
  "$GNUSTEP_USER_DIR_LIBRARIES",
  [Built in default value for GNUstep user_dir libraries])

GNUSTEP_USER_DIR_HEADERS=`echo $GNUSTEP_USER_DIR_HEADERS|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DIR_HEADERS,
  "$GNUSTEP_USER_DIR_HEADERS",
  [Built in default value for GNUstep user_dir headers])

GNUSTEP_USER_DIR_DOC=`echo $GNUSTEP_USER_DIR_DOC|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DIR_DOC,
  "$GNUSTEP_USER_DIR_DOC",
  [Built in default value for GNUstep user_dir documentation])

GNUSTEP_USER_DIR_DOC_MAN=`echo $GNUSTEP_USER_DIR_DOC_MAN|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DIR_DOC_MAN,
  "$GNUSTEP_USER_DIR_DOC_MAN",
  [Built in default value for GNUstep user_dir manpages documentation])

GNUSTEP_USER_DIR_DOC_INFO=`echo $GNUSTEP_USER_DIR_DOC_INFO|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_USER_DIR_DOC_INFO,
  "$GNUSTEP_USER_DIR_DOC_INFO",
  [Built in default value for GNUstep user_dir info documentation])

GNUSTEP_TARGET_SYSTEM_USERS_DIR=`echo $GNUSTEP_TARGET_SYSTEM_USERS_DIR|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_SYSTEM_USERS_DIR,
  "$GNUSTEP_TARGET_SYSTEM_USERS_DIR",
  [Built in default value for GNUstep System Users directory])
GNUSTEP_TARGET_NETWORK_USERS_DIR=`echo $GNUSTEP_TARGET_NETWORK_USERS_DIR|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_NETWORK_USERS_DIR,
  "$GNUSTEP_TARGET_NETWORK_USERS_DIR",
  [Built in default value for GNUstep Network Users directory])
GNUSTEP_TARGET_LOCAL_USERS_DIR=`echo $GNUSTEP_TARGET_LOCAL_USERS_DIR|sed -e 's/\\\\/\\\\\\\\/g'`
AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_USERS_DIR,
  "$GNUSTEP_TARGET_LOCAL_USERS_DIR",
  [Built in default value for GNUstep Local Users directory])


#------------------------------------------------------------------------------
# Now we have finished configuring the default GNUstep filesystem setup of
# the target.  All GNUstep variables from now on are the ones used to build
#------------------------------------------------------------------------------

#
# Now load the values to be used in locating libraries etc used when
# building the base library ... as supplied by the gnustep-make package
#
# It looks like we ought to source the whole GNUstep.sh here, and even
# ask it to output all variables!  That way we have access to (eg)
# GNUSTEP_SYSTEM_HEADERS below.
#
# We need to unset any values that we really need, or existing settings
# would be used by GNUstep.sh
#
unset GNUSTEP_SYSTEM_HEADERS
unset GNUSTEP_SYSTEM_LIBRARIES
GNUSTEP_MAKEFILES="$CURRENT_GNUSTEP_MAKEFILES"
GNUSTEP_SH_EXPORT_ALL_VARIABLES=yes
. "$CURRENT_GNUSTEP_MAKEFILES/GNUstep.sh"
unset GNUSTEP_SH_EXPORT_ALL_VARIABLES

# For backwards compatibility, define GNUSTEP_SYSTEM_HEADERS from
# GNUSTEP_SYSTEM_ROOT if not set yet.
if test x"$GNUSTEP_SYSTEM_HEADERS" = x""; then
  GNUSTEP_SYSTEM_HEADERS="$GNUSTEP_SYSTEM_ROOT/Library/Headers"
fi

if test x"$GNUSTEP_SYSTEM_LIBRARIES" = x""; then
  GNUSTEP_SYSTEM_LIBRARIES="$GNUSTEP_SYSTEM_ROOT/Library/Libraries"
fi

#
# Add standard library and header directories for configure to use to locate
# plain C developer headers/libraries which haver been installed in the
# GNUstep hierarchy.
#
CPPFLAGS="$CPPFLAGS -I$GNUSTEP_SYSTEM_HEADERS"
LDFLAGS="$LDFLAGS -L$GNUSTEP_SYSTEM_LIBRARIES"

#--------------------------------------------------------------------
# Find the compiler
#--------------------------------------------------------------------
AC_PROG_CC
AC_PROG_CPP

AC_PATH_PROG(WHOAMI, whoami, echo, $PATH:/usr/ucb)

#--------------------------------------------------------------------
# specific target_os options
#--------------------------------------------------------------------
INCLUDE_FLAGS="$CPPFLAGS"
LDIR_FLAGS="$LDFLAGS"
# This is just for configuring. Later, in config.make, INCLUDE_FLAGS
# goes in CONFIG_SYSTEM_INCL and LIBS goes in CONFIG_SYSTEM_LIBS
case "$target_os" in
  freebsd* | openbsd* )	
	        CPPFLAGS="$CPPFLAGS -I/usr/local/include"
		LDFLAGS="$LDFLAGS -L/usr/local/lib";;
  netbsd*)	CPPFLAGS="$CPPFLAGS -I/usr/pkg/include"
		LDFLAGS="$LDFLAGS -Wl,-R/usr/pkg/lib -L/usr/pkg/lib";;
esac

#----------------------------------------------------------------
# Find out if nested functions work on this machine
#----------------------------------------------------------------
AC_MSG_CHECKING(whether nested functions work)
AC_TRY_RUN([#include "$srcdir/config/config.nested.c"],
    gcc_nested=1, gcc_nested=0, gcc_nested=1)
if test $gcc_nested = 0; then
  AC_MSG_RESULT(no)
  AC_DEFINE(BROKEN_NESTED_FUNCTIONS,1,
            [Define if nested functions are broken on this compiler])
else
  AC_MSG_RESULT(yes)
fi

#--------------------------------------------------------------------
# Set Apple/Darwin/OSX/NeXT information for other tests
#--------------------------------------------------------------------
OBJC_RUNTIME_LIB=`echo $LIBRARY_COMBO | tr '-' ' ' | awk '{print $1}'`
AC_MSG_CHECKING(the Objective-C runtime)
if test "$OBJC_RUNTIME_LIB" = "nx" -o "$OBJC_RUNTIME_LIB" = "apple"; then
  AC_MSG_RESULT(NeXT)
  LIBOBJC='-lobjc'
  OBJCFLAGS="-fnext-runtime -DNeXT_RUNTIME"
else
  AC_MSG_RESULT(GNU)
  LIBOBJC='-lobjc'
  OBJCFLAGS="-fgnu-runtime"
fi

#--------------------------------------------------------------------
# Miscellaneous flags
#--------------------------------------------------------------------
# Set location of GNUstep dirs for later use
if test "$GNUSTEP_IS_FLATTENED" = no; then
  clean_target_os=`$CURRENT_GNUSTEP_MAKEFILES/clean_os.sh $target_os`
  clean_target_cpu=`$CURRENT_GNUSTEP_MAKEFILES/clean_cpu.sh $target_cpu`
  obj_dir=$clean_target_cpu/$clean_target_os
  lobj_dir=$clean_target_cpu/$clean_target_os/$LIBRARY_COMBO
  GNUSTEP_LDIR="$GNUSTEP_SYSTEM_LIBRARIES/$obj_dir"
  GNUSTEP_HDIR="$GNUSTEP_SYSTEM_HEADERS/$LIBRARY_COMBO"
else
  obj_dir=
  lobj_dir=
  GNUSTEP_LDIR="$GNUSTEP_SYSTEM_LIBRARIES"
  GNUSTEP_HDIR="$GNUSTEP_SYSTEM_HEADERS"
fi

#
# The following one is so that headers of custom libraries into
# $GNUSTEP_HDIR are used before the standard ones
#
INCLUDE_FLAGS="$INCLUDE_FLAGS -I$GNUSTEP_HDIR"
LDIR_FLAGS="$LDIR_FLAGS -L$GNUSTEP_LDIR/$LIBRARY_COMBO -L$GNUSTEP_LDIR"

#--------------------------------------------------------------------
# Check if Objective-C is installed
#--------------------------------------------------------------------
AC_CHECK_HEADERS(objc/objc.h)
if test $ac_cv_header_objc_objc_h = no; then
  echo "Check to make sure you have a full installation of the GCC"
  echo "compiler that includes the Objective-C headers and libraries"
  AC_MSG_ERROR(Could not find Objective-C headers)
fi

#--------------------------------------------------------------------
# Check for strange network stuff used by gdomap
#--------------------------------------------------------------------
AC_MSG_NOTICE(for gdomap network details)
AC_MSG_CHECKING(for variable length socket addresses)
AC_TRY_COMPILE([
  #include <sys/types.h>
  #include <sys/socket.h>
  #include <net/if.h>
  ],
  [struct ifreq s; s.ifr_addr.sa_len = 0;],
  sa_len=1, sa_len=0)
if test $sa_len = 1; then
  AC_MSG_RESULT([found])
  AC_DEFINE(HAVE_SA_LEN,1,
            [Define if your system has variable length network addresses])
else
  AC_MSG_RESULT([not found])
fi

AC_MSG_CHECKING(for gcc visibility attribute support)
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Werror"
AC_COMPILE_IFELSE([
  #include <stdio.h>
  int foo() __attribute__ ((visibility("internal")));
  int foo(){ return 1; }
  int main(){ return foo(); }],
  AC_MSG_RESULT([found])
  gs_visibility=1,
  AC_MSG_RESULT([not present])
  gs_visibility=0
)
AC_DEFINE_UNQUOTED(HAVE_VISIBILITY_ATTRIBUTE,$gs_visibility,
  [Says whether the visibility attribute works])
CFLAGS="$saved_CFLAGS"


#--------------------------------------------------------------------
# Check if system has buggy SO_REUSEADDR
#--------------------------------------------------------------------
AC_MSG_CHECKING(whether SO_REUSEADDR is broken)
AC_TRY_RUN([#include "$srcdir/config/config.reuseaddr.c"],
	reuseaddr_ok=1,
	reuseaddr_ok=0,
	reuseaddr_ok=0)
if test $reuseaddr_ok = 0; then
  AC_DEFINE(BROKEN_SO_REUSEADDR,1,
            [Define if SO_REUSEADDR is broken on this system])
  echo
  echo "The SO_REUSEADDR socket option for controlling re-use of network"
  echo "sockets immediately after shutdown appears to be broken on this"
  echo "machine.  Networking code will be built without using this"
  echo "feature."
  echo "The effect of this lack is that when a network service is shut"
  echo "down, it cannot be re-started on the same network port until"
  echo "an operating-system timeout has expired."
  echo "For servers other than gdomap, GNUstep does not normally need"
  echo "a particular network port, so the problem is unlikely to arise."
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

#--------------------------------------------------------------------
# Check for thread flags for libobjc.
#--------------------------------------------------------------------
#
AC_MSG_CHECKING(for objc threading flags)
#
# Get them from gnustep-make which contains the real code to get them
#
objc_threaded=`grep objc_threaded: $CURRENT_GNUSTEP_MAKEFILES/$lobj_dir/config.make | sed -e 's/objc_threaded:=//'`
#
AC_MSG_RESULT($objc_threaded)

#--------------------------------------------------------------------
# Byte order information needed for foundation headers.
#--------------------------------------------------------------------
AC_C_BIGENDIAN
if test $ac_cv_c_bigendian = yes; then
  GS_WORDS_BIGENDIAN=1
else
  GS_WORDS_BIGENDIAN=0
fi
AC_SUBST(GS_WORDS_BIGENDIAN)

#--------------------------------------------------------------------
# Type size information needed for foundation headers.
#--------------------------------------------------------------------
AC_CHECK_SIZEOF(void*)

GS_SINT8="signed char"
GS_UINT8="unsigned char"
AC_SUBST(GS_SINT8)
AC_SUBST(GS_UINT8)

AC_CHECK_SIZEOF(short)
AC_SUBST(ac_cv_sizeof_short)

AC_CHECK_SIZEOF(int)
AC_SUBST(ac_cv_sizeof_int)

AC_CHECK_SIZEOF(long)
AC_SUBST(ac_cv_sizeof_long)

AC_CHECK_SIZEOF(long long)
AC_SUBST(ac_cv_sizeof_long_long)

AC_CHECK_SIZEOF(float)
AC_SUBST(ac_cv_sizeof_float)

AC_CHECK_SIZEOF(double)
AC_SUBST(ac_cv_sizeof_double)

AC_SUBST(ac_cv_sizeof_voidp)
if test $ac_cv_sizeof_voidp = $ac_cv_sizeof_int; then
  GS_SADDR="int"
  GS_UADDR="unsigned int"
else
  if test $ac_cv_sizeof_voidp = $ac_cv_sizeof_long; then
    GS_SADDR="long"
    GS_UADDR="unsigned long"
  else
    if test $ac_cv_sizeof_voidp = $ac_cv_sizeof_long_long; then
      GS_SADDR="long long"
      GS_UADDR="unsigned long long"
    else
      AC_MSG_ERROR([Unable to find integer of same size as void*])
    fi
  fi
fi
AC_SUBST(GS_SADDR)
AC_SUBST(GS_UADDR)

if test $ac_cv_sizeof_short = 2; then
  GS_SINT16="signed short"
  GS_UINT16="unsigned short"
else
  if test $ac_cv_sizeof_int = 2; then
    GS_SINT16="signed int"
    GS_UINT16="unsigned int"
  else
    AC_MSG_ERROR([Unable to determine type for 16-bit integer])
  fi
fi
AC_SUBST(GS_SINT16)
AC_SUBST(GS_UINT16)

if test $ac_cv_sizeof_int = 4; then
  GS_SINT32="signed int"
  GS_UINT32="unsigned int"
else
  if test $ac_cv_sizeof_long = 4; then
    GS_SINT32="signed long"
    GS_UINT32="unsigned long"
  else
    if test $ac_cv_sizeof_short = 4; then
      GS_SINT32="signed short"
      GS_UINT32="unsigned short"
    else
      AC_MSG_ERROR([Unable to determine type for 32-bit integer])
    fi
  fi
fi
AC_SUBST(GS_SINT32)
AC_SUBST(GS_UINT32)

GS_HAVE_I64=1
if test $ac_cv_sizeof_int = 8; then
  GS_SINT64="signed int"
  GS_UINT64="unsigned int"
else
  if test $ac_cv_sizeof_long = 8; then
    GS_SINT64="signed long"
    GS_UINT64="unsigned long"
  else
    if test $ac_cv_sizeof_long_long = 8; then
      GS_SINT64="signed long long"
      GS_UINT64="unsigned long long"
    else
#     64-bit ints not supported - but we need a dummy type for byte-swapping
#     of 64-bit values arriving from another system.
      GS_SINT64="struct { gsu8 a[8]; }"
      GS_UINT64="struct { gsu8 a[8]; }"
      GS_HAVE_I64=0
    fi
  fi
fi
AC_SUBST(GS_SINT64)
AC_SUBST(GS_UINT64)
AC_SUBST(GS_HAVE_I64)

GS_HAVE_I128=1
if test $ac_cv_sizeof_long = 16; then
  GS_SINT128="signed long"
  GS_UINT128="unsigned long"
else
  if test $ac_cv_sizeof_long_long = 16; then
    GS_SINT128="signed long long"
    GS_UINT128="unsigned long long"
  else
#     128-bit ints not supported - but we need a dummy type for byte-swapping
#     of 128-bit values arriving from another system.
    GS_SINT128="struct { gsu8 a[16]; }"
    GS_UINT128="struct { gsu8 a[16]; }"
    GS_HAVE_I128=0
  fi
fi
AC_SUBST(GS_SINT128)
AC_SUBST(GS_UINT128)
AC_SUBST(GS_HAVE_I128)

if test $ac_cv_sizeof_float = 4; then
  GS_FLT32="float"
else
  AC_MSG_ERROR([Unable to determine type for 32-bit float])
fi
AC_SUBST(GS_FLT32)

if test $ac_cv_sizeof_double = 8; then
  GS_FLT64="double"
else
  AC_MSG_ERROR([Unable to determine type for 64-bit float])
fi
AC_SUBST(GS_FLT64)

#--------------------------------------------------------------------
# Type-size information for encoding into archives using NSArchiver etc.
#--------------------------------------------------------------------
if test $ac_cv_sizeof_short = 2; then
  _GSC_S_SHT=_GSC_I16
else
  _GSC_S_SHT=_GSC_I32
fi
AC_SUBST(_GSC_S_SHT)

if test $ac_cv_sizeof_int = 2; then
  _GSC_S_INT=_GSC_I16
else
  if test $ac_cv_sizeof_int = 4; then
    _GSC_S_INT=_GSC_I32
  else
    if test $ac_cv_sizeof_int = 8; then
      _GSC_S_INT=_GSC_I64
    else
      if test $ac_cv_sizeof_int = 16; then
	_GSC_S_INT=_GSC_I128
      fi
    fi
  fi
fi
AC_SUBST(_GSC_S_INT)

if test $ac_cv_sizeof_long = 4; then
  _GSC_S_LNG=_GSC_I32
else
  if test $ac_cv_sizeof_long = 8; then
    _GSC_S_LNG=_GSC_I64
  else
    if test $ac_cv_sizeof_long = 16; then
      _GSC_S_LNG=_GSC_I128
    fi
  fi
fi
AC_SUBST(_GSC_S_LNG)

if test $ac_cv_sizeof_long_long = 4; then
  _GSC_S_LNG_LNG=_GSC_I32
else
  if test $ac_cv_sizeof_long_long = 8; then
    _GSC_S_LNG_LNG=_GSC_I64
  else
    if test $ac_cv_sizeof_long_long = 16; then
      _GSC_S_LNG_LNG=_GSC_I128
    fi
  fi
fi
AC_SUBST(_GSC_S_LNG_LNG)

#--------------------------------------------------------------------
# Setup dynamic linking 
#--------------------------------------------------------------------
OBJC_SYS_DYNAMIC_LINKER()
if test x"$ac_cv_lib_dl_dladdr" = xyes; then
  AC_DEFINE([HAVE_DLADDR], 1,
            [Define if you have the dladdr function in the dl library])
fi

#--------------------------------------------------------------------
# Check whether Objective-C /really/ works
#--------------------------------------------------------------------
AC_MSG_CHECKING(whether objc really works)
saved_LIBS="$LIBS"
saved_CPPFLAGS="$CPPFLAGS"
LIBS="$LIBS $LIBOBJC"
CPPFLAGS="$CPPFLAGS $OBJCFLAGS -x objective-c"
if test x"$objc_threaded" != x""; then
  LIBS="$LIBS $objc_threaded"
fi
LIBS="$LIBS $extra_LIBS"
AC_CACHE_VAL(objc_works,
  AC_TRY_RUN([#include "$srcdir/config/config.objc.m"],
  objc_works=yes, 
  objc_works=no, 
  objc_works=yes)
)
if test $objc_works = yes; then
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
  echo "I don't seem to be able to use your Objective-C compiler to produce"
  echo "working binaries!  Please check your Objective-C compiler installation."
  echo "If you are using gcc-3.x make sure that your compiler's libgcc_s and libobjc"
  echo "can be found by the dynamic linker - usually that requires you to play"
  echo "with LD_LIBRARY_PATH or /etc/ld.so.conf."
  echo "Please refer to your compiler installation instructions for more help."
  AC_MSG_ERROR(The Objective-C compiler does not work or is not installed properly.)
fi

# Don't revert any Objective-C flags as they are used in the next test

#---------------------------------------------------------------------
# Guess if we are using a compiler which allows us to change the class
# to be used for constant strings by using the -fconstant-string-class
# option.  If that is the case, we change it to NSConstantString.
#---------------------------------------------------------------------
strclass_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS -fconstant-string-class=FooConstantString"
AC_MSG_CHECKING(if the compiler supports -fconstant-string-class)
AC_CACHE_VAL(objc_compiler_supports_constant_string_class,
  AC_TRY_RUN([#include "$srcdir/config/config.constant-string-class.m"],
  objc_compiler_supports_constant_string_class=yes,
  objc_compiler_supports_constant_string_class=no,
  objc_compiler_supports_constant_string_class=no)
)
if test $objc_compiler_supports_constant_string_class = yes; then
  NX_CONST_STRING_OBJCFLAGS="-fconstant-string-class=NSConstantString"
  NX_CONST_STRING_CLASS=NSConstantString
  AC_MSG_RESULT(yes)
else
  NX_CONST_STRING_OBJCFLAGS=""
  NX_CONST_STRING_CLASS=NXConstantString
  AC_MSG_RESULT(no)
fi
CPPFLAGS="$strclass_CPPFLAGS"

AC_SUBST(NX_CONST_STRING_OBJCFLAGS)
AC_SUBST(NX_CONST_STRING_CLASS)

# Don't revert any Objective-C flags as they are used in the next test

#---------------------------------------------------------------------
# Guess if we are using a compiler which has the (GNU extension) +load 
# method which is executed before main.  
# Defines HAVE_LOAD_METHOD if +load methods are called before main.
# Needed by NSProcessInfo.m
#---------------------------------------------------------------------
AC_MSG_CHECKING(if +load method is executed before main)
AC_CACHE_VAL(objc_load_method_worked,
  AC_TRY_RUN([#include "$srcdir/config/config.loadtest.m"],
	objc_load_method_worked=yes,
	objc_load_method_worked=no,
	objc_load_method_worked=no)
)
if test $objc_load_method_worked = yes; then
  AC_DEFINE(HAVE_LOAD_METHOD,1,
            [Define if your Obj-C compiler calls +load methods before main])
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

# Don't revert any Objective-C flags as they are used in the next test

#--------------------------------------------------------------------
# This function needed by NSLock.m for conditioned wait
# get_uninstalled_dtable used by behavior.m and objc-load.m
# Thread functions used by NSThread
#--------------------------------------------------------------------
AC_CHECK_FUNCS(objc_condition_timedwait objc_thread_add)

AC_EGREP_HEADER(objc_get_uninstalled_dtable, objc/objc-api.h, 
	AC_DEFINE(HAVE_OBJC_GET_UNINSTALLED_DTABLE,1,
                  [ Define if objc-api.h defines this function]),)

LIBS="$saved_LIBS"
CPPFLAGS="$saved_CPPFLAGS"

#--------------------------------------------------------------------
# Generic settings needed by NSZone.m
#--------------------------------------------------------------------
AC_TYPE_SIZE_T
AC_C_INLINE

#--------------------------------------------------------------------
# Following header checks needed for bzero in Storage.m and other places
#--------------------------------------------------------------------
AC_HEADER_STDC
AC_CHECK_HEADERS(string.h memory.h)

#--------------------------------------------------------------------
# Following header check needed NSConnection.h
#--------------------------------------------------------------------
AC_CHECK_HEADERS(float.h)

#--------------------------------------------------------------------
# Header files and functions for files and filesystems
#--------------------------------------------------------------------
AC_CHECK_HEADERS(sys/stat.h sys/vfs.h sys/statfs.h sys/statvfs.h pwd.h grp.h)
AC_CHECK_HEADERS(sys/syslimits.h sys/param.h)
# Twisted header check for NetBSD
AC_CHECK_HEADERS([sys/mount.h], [], [],
  [#if HAVE_SYS_SYSLIMITS_H
   #include <sys/syslimits.h>
   #endif
   #if HAVE_SYS_PARAM_H
   #include <sys/param.h>
   #endif
  ])
AC_CHECK_HEADERS(sys/types.h windows.h locale.h langinfo.h)
saved_LIBS="$LIBS"
AC_CHECK_LIB(m, main)
AC_CHECK_FUNCS(statvfs link symlink readlink geteuid getlogin getpwnam getpwuid getgrgid rint getopt)
LIBS="$saved_LIBS"

#--------------------------------------------------------------------
# These two headers (functions) needed by Time.m
#--------------------------------------------------------------------
dnl AC_REPLACE_FUNCS(getrusage gettimeofday)

AC_CHECK_HEADERS(time.h sys/time.h tzfile.h sys/rusage.h ucbinclude/sys/resource.h)
AC_CHECK_FUNCS(time ctime tzset)

# Check if tzfile contains the proper definitions
if test $ac_cv_header_tzfile_h = yes; then
  AC_EGREP_HEADER(tzhead, tzfile.h, 
	AC_DEFINE(HAVE_TZHEAD,1,
                  [ Define if tzfile.h includes the proper definitions]),)
fi

#--------------------------------------------------------------------
# These headers/functions needed by GSTcpPort.m
#--------------------------------------------------------------------
AC_CHECK_HEADERS(sys/socket.h netinet/in.h)
dnl AC_REPLACE_FUNCS(recvfrom)

#--------------------------------------------------------------------
# These headers/functions needed for stacktrace in NSException.m
#--------------------------------------------------------------------
AC_CHECK_HEADERS(bfd.h)
AC_CHECK_LIB(iberty, dyn_string_append)
AC_CHECK_LIB(bfd, bfd_openr)

#--------------------------------------------------------------------
# These headers/functions needed by NSLog.m
#--------------------------------------------------------------------
AC_CHECK_HEADERS(syslog.h)
AC_CHECK_FUNCS(syslog)

#--------------------------------------------------------------------
# These headers/functions needed by NSRunLoop.m
#--------------------------------------------------------------------
AC_CHECK_HEADERS(poll.h)
AC_CHECK_FUNCS(poll)
have_poll=no
if test $ac_cv_header_poll_h = yes; then
  have_poll=yes
  AC_MSG_CHECKING(for poll emulation)
  AC_EGREP_CPP(emulating_poll, [#include "config/config.poll.c"], 
  	have_poll=no,)
  if test $have_poll = yes; then
    AC_MSG_RESULT(no)
    AC_DEFINE(HAVE_POLL_F,1, [ Define if poll is NOT emulated via select])
  else
    AC_MSG_RESULT(yes)
  fi
fi

#--------------------------------------------------------------------
# Check for pthread.h (only when building on Darwin machines)
#--------------------------------------------------------------------
AC_CHECK_HEADERS(pthread.h)
HAVE_PTHREAD_H=no
if test $ac_cv_header_pthread_h = yes ; then
  HAVE_PTHREAD_H=yes
fi
AC_SUBST(HAVE_PTHREAD_H)

#--------------------------------------------------------------------
# This function needed by StdioStream.m
#--------------------------------------------------------------------
AC_CHECK_FUNCS(vsprintf vasprintf)
if test $ac_cv_func_vsprintf = yes ; then
    AC_TRY_RUN([#include "$srcdir/config/config.vsprintf.c"],
		VSPRINTF_RETURNS_LENGTH=1,
		VSPRINTF_RETURNS_LENGTH=0,
		VSPRINTF_RETURNS_LENGTH=1)
    AC_DEFINE_UNQUOTED(VSPRINTF_RETURNS_LENGTH, $VSPRINTF_RETURNS_LENGTH,
                       [Define if vsprintf returns the length printed])
fi
if test $ac_cv_func_vasprintf = yes ; then
    AC_TRY_RUN([#include "$srcdir/config/config.vasprintf.c"],
		VASPRINTF_RETURNS_LENGTH=1,
		VASPRINTF_RETURNS_LENGTH=0,
		VASPRINTF_RETURNS_LENGTH=1)
    AC_DEFINE_UNQUOTED(VASPRINTF_RETURNS_LENGTH, $VASPRINTF_RETURNS_LENGTH,
                       [Define if vasprintf returns the length printed])
fi

#--------------------------------------------------------------------
# This function needed by NSFileManager.m
#--------------------------------------------------------------------
AC_CHECK_FUNCS(getcwd)
AC_HEADER_DIRENT

#--------------------------------------------------------------------
# This function needed by gdomap.c
#--------------------------------------------------------------------
AC_CHECK_HEADERS(getopt.h)

#--------------------------------------------------------------------
# This function needed by NSPage.m
#--------------------------------------------------------------------
AC_CHECK_FUNCS(valloc)

#--------------------------------------------------------------------
# This function needed by Time.m
#--------------------------------------------------------------------
AC_CHECK_FUNCS(times)

#--------------------------------------------------------------------
# These functions needed by NSData.m
#--------------------------------------------------------------------
AC_CHECK_FUNCS(mkstemp)
AC_CHECK_FUNCS(shmctl)
AC_CHECK_FUNCS(mmap)

#--------------------------------------------------------------------
# These functions needed by NSTask.m
#--------------------------------------------------------------------
AC_CHECK_FUNCS(killpg setpgrp setpgid)
AC_FUNC_SETPGRP

HAVE_PTS_STREAM_MODULES=0
case "${target}" in
  *-sysv-*)
    HAVE_PTS_STREAM_MODULES=1
    ;;
esac
AC_DEFINE_UNQUOTED(HAVE_PTS_STREAM_MODULES, $HAVE_PTS_STREAM_MODULES,
                   [Define this if you work on sysv])
AC_SUBST(HAVE_PTS_STREAM_MODULES)

AC_CHECK_HEADERS(libc.h limits.h malloc.h memory.h string.h signal.h dnl
	sys/signal.h sys/wait.h sys/file.h sys/fcntl.h sys/ioctl.h dnl
	sys/stropts.h unistd.h utime.h stdint.h inttypes.h sys/inttypes.h)

if test $ac_cv_header_stdint_h = yes; then
INCLUDE_STDINT="#include <stdint.h>"
elif test $ac_cv_header_inttypes_h = yes; then
INCLUDE_STDINT="#include <inttypes.h>"
elif test $ac_cv_header_sys_inttypes_h = yes; then
INCLUDE_STDINT="#include <sys/inttypes.h>"
else
INCLUDE_STDINT="no"
fi

if test "$INCLUDE_STDINT" = "no"; then
INCLUDE_STDINT=""
DEFINE_INT8_T="#define int8_t gss8"
DEFINE_UINT8_T="#define uint8_t gsu8"
DEFINE_INT16_T="#define int16_t gss16"
DEFINE_UINT16_T="#define uint16_t gsu16"
DEFINE_INT32_T="#define int32_t gss32"
DEFINE_UINT32_T="#define uint32_t gsu32"
DEFINE_INT64_T="#define int64_t gss64"
DEFINE_UINT64_T="#define uint64_t gsu64"
DEFINE_INTPTR_T="#define intptr_t gssaddr"
DEFINE_UINTPTR_T="#define uintptr_t gsuaddr"
else
DEFINE_INT8_T=""
DEFINE_UINT8_T=""
DEFINE_INT16_T=""
DEFINE_UINT16_T=""
DEFINE_INT32_T=""
DEFINE_UINT32_T=""
DEFINE_INT64_T=""
DEFINE_UINT64_T=""
DEFINE_INTPTR_T=""
DEFINE_UINTPTR_T=""
fi

AC_SUBST(INCLUDE_STDINT)
AC_SUBST(DEFINE_INT8_T)
AC_SUBST(DEFINE_UINT8_T)
AC_SUBST(DEFINE_INT16_T)
AC_SUBST(DEFINE_UINT16_T)
AC_SUBST(DEFINE_INT32_T)
AC_SUBST(DEFINE_UINT32_T)
AC_SUBST(DEFINE_INT64_T)
AC_SUBST(DEFINE_UINT64_T)
AC_SUBST(DEFINE_INTPTR_T)
AC_SUBST(DEFINE_UINTPTR_T)

#--------------------------------------------------------------------
# These used by GSFileHandle.m and distributed objects
#--------------------------------------------------------------------
AC_CHECK_FUNCS(inet_aton inet_pton sigaction)
USE_ZLIB=0
AC_CHECK_HEADERS(zlib.h)
if test $ac_cv_header_zlib_h = yes; then
  AC_CHECK_LIB(z, gzseek, zlib_ok=yes, zlib_ok=no)
  if test "$zlib_ok" = yes; then
    LIBS="$LIBS -lz"
    USE_ZLIB=1
  fi
fi
AC_SUBST(USE_ZLIB)

HAVE_INET_PTON=no
if test $ac_cv_func_inet_pton = yes ; then
  HAVE_INET_PTON=yes
fi
AC_SUBST(HAVE_INET_PTON)

#--------------------------------------------------------------------
# One of these function needed by NSThread.m
#--------------------------------------------------------------------
AC_CHECK_FUNCS(nanosleep usleep)

#--------------------------------------------------------------------
# This function needed by NSDebug.m and NSProcessInfo.m
#--------------------------------------------------------------------
AC_CHECK_FUNCS(strerror)

#--------------------------------------------------------------------
# This type needed by GSFormat
#--------------------------------------------------------------------
AC_CHECK_TYPES([uintmax_t])

AC_MSG_CHECKING([whether precompiler handles LONG_LONG_MAX])
# We need to define _GNU_SOURCE for some systems to enable LONG_LONG_MAX
AC_TRY_CPP([#ifndef _GNU_SOURCE
	#define _GNU_SOURCE
	#endif
        #ifdef HAVE_STDINT_H
	#include <stdint.h>
	#endif
	#include <limits.h>
	#if defined(LONG_LONG_MAX)
	#if LONG_MAX == LONG_LONG_MAX
	#error long max equals long long max
	#endif
	#else
	#error long long max not defined
	#endif
	], llmax=yes, llmax=no)
if test $llmax = yes; then
	AC_MSG_RESULT(yes)
        AC_DEFINE(HANDLE_LONG_LONG_MAX,1,
                  [Define if this constant is defined])
else
	AC_MSG_RESULT(no)
fi

#
# Solaris and *BSD use LLONG_MAX instead
#
AC_MSG_CHECKING([whether we have LLONG_MAX])
# We need to use the same header environment as the test above because we
# will be using one or the other set of constants.
AC_TRY_CPP([#ifndef _GNU_SOURCE
	#define _GNU_SOURCE
	#endif
        #ifdef HAVE_STDINT_H
	#include <stdint.h>
	#endif
	#include <limits.h>
	#if defined(LLONG_MAX)
	#if LONG_MAX == LLONG_MAX
	#error long max equals long long max
	#endif
	#else
	#error llong max not defined
	#endif
	], llmax=yes, llmax=no)

if test $llmax = yes; then
  AC_MSG_RESULT(yes)
  AC_DEFINE(HANDLE_LLONG_MAX,1,
            [Define if this constant is defined])
else
  AC_MSG_RESULT(no)
fi
AC_CHECK_HEADERS(wchar.h)

#--------------------------------------------------------------------
# Check if short and int values need to be word aligned
#--------------------------------------------------------------------
AC_MSG_CHECKING(short/int needs to be word aligned)
AC_TRY_RUN([#include "$srcdir/config/config.align.c"],
	NEED_WORD_ALIGNMENT=0,
	NEED_WORD_ALIGNMENT=1,
	NEED_WORD_ALIGNMENT=1)
AC_DEFINE_UNQUOTED(NEED_WORD_ALIGNMENT, $NEED_WORD_ALIGNMENT,
                   [Define if your system needs to have short/int word aligned])
if test $NEED_WORD_ALIGNMENT = 1; then
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

#--------------------------------------------------------------------
# This function needed by NSString for handling of %@ printf directive.
#--------------------------------------------------------------------
AC_CHECK_FUNC(register_printf_function, register_printf=1, 
register_printf=0)
if test $register_printf = 1; then
  AC_TRY_RUN([#include "$srcdir/config/config.printf.c"],
	       working_register_printf=1, working_register_printf=0, 
               working_register_printf=1)
  if test $working_register_printf = 1; then
    AC_DEFINE(HAVE_REGISTER_PRINTF_FUNCTION,1,
              [Define if you have the register_printf_function function])
    AC_TRY_RUN([#include "$srcdir/config/config.wprintf.c"],
	       wide_register_printf=1, wide_register_printf=0, 
               wide_register_printf=1)
    if test $wide_register_printf = 1; then
      AC_DEFINE(HAVE_WIDE_PRINTF_FUNCTION,1,
              [Define if register_printf_function supports wide characters])
    fi
  fi
fi


#--------------------------------------------------------------------
# This function needed by NSString.
#--------------------------------------------------------------------
AC_CHECK_FUNCS(realpath)

#--------------------------------------------------------------------
# Check if the C Library defines extern char *program_invocation_name
# Used in critical cases by NSProcessInfo.m
#--------------------------------------------------------------------
AC_MSG_CHECKING(program_invocation_name in C Library)
AC_CACHE_VAL(program_invocation_name_worked,
[AC_TRY_RUN([
#include <string.h>
int 
main (int argc, char *argv[])
{
  extern char *program_invocation_name;
  return (strcmp (program_invocation_name, argv[0]));
}
], program_invocation_name_worked=yes, program_invocation_name_worked=no, program_invocation_name_worked=no)])
if test $program_invocation_name_worked = yes; then
  AC_DEFINE(HAVE_PROGRAM_INVOCATION_NAME,1,
            [Define if your Lib C defines program_invocation_name])
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

#--------------------------------------------------------------------
# Check for uname header used by NSProcessInfo.m 
#--------------------------------------------------------------------
AC_CHECK_HEADERS(sys/utsname.h)

#--------------------------------------------------------------------
# Defines HAVE_PROCFS if the kernel supports the /proc filesystem. 
# Needed by NSProcessInfo.m 
#--------------------------------------------------------------------
AC_CHECK_HEADERS(procfs.h)
AC_SYS_PROCFS
AC_SYS_PROCFS_PSINFO
AC_SYS_PROCFS_EXE_LINK

#--------------------------------------------------------------------
# Check if /proc/$$/cmdline terminates the last argument with a nul
#--------------------------------------------------------------------
AC_MSG_CHECKING(/proc/$$/cmdline terminated by nul)
AC_TRY_RUN([#include "$srcdir/config/config.proccmd.c"],
	CMDLINE_TERMINATED=1,
	CMDLINE_TERMINATED=0,
	CMDLINE_TERMINATED=0)
AC_DEFINE_UNQUOTED(CMDLINE_TERMINATED, $CMDLINE_TERMINATED,
		   [Define if your system terminates the final argument in /proc/$$/cmdline])
if test $CMDLINE_TERMINATED = 1; then
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

#--------------------------------------------------------------------
# If /proc doesn't work, try kvm (on FreeBSD, for instance)
#--------------------------------------------------------------------
have_kvm_env=0
save_LIBS="$LIBS"
AC_CHECK_LIB(kvm, kvm_getenvv)
if test "$ac_cv_lib_kvm_kvm_getenvv" = yes; then
  AC_MSG_CHECKING(if we can access kernel memory)
  AC_TRY_RUN([#include "$srcdir/config/config.kvmopen.c"],
	have_kvm_env=1,
	have_kvm_env=0,
	have_kvm_env=0)
  if test $have_kvm_env = 1; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(HAVE_KVM_ENV, 1, 
    			    [Define if you can access the kernel via kvm_open])
  else
    AC_MSG_RESULT(no)
    # Reset LIBS since we don't need kvm
    LIBS="$save_LIBS"
  fi
fi

#--------------------------------------------------------------------
# Include redefinition of main () only if needed.
# On some systems - force redefinition to be used as the /proc stuff
# doesn't work. Allow NSProcessInfo initialization method also.
#--------------------------------------------------------------------
PASS_ARG=no
case "$target_os" in
  cygwin*)	PASS_ARG=yes;;
esac

AC_MSG_CHECKING(use of pass-through arguments)
AC_ARG_ENABLE(pass-arguments,
  [  --enable-pass-arguments	Force user main call to NSProcessInfo initialize],,
  enable_pass_arguments=$PASS_ARG)

if test "$enable_pass_arguments" = "yes"; then
  GS_PASS_ARGUMENTS=1
else
  GS_PASS_ARGUMENTS=0
fi
AC_SUBST(GS_PASS_ARGUMENTS)
AC_MSG_RESULT($enable_pass_arguments)

AC_MSG_CHECKING(use of fake-main definition)
AC_ARG_ENABLE(fake-main,
  [  --enable-fake-main  		Force redefine of user main function],,
  enable_fake_main=no)

if test "$enable_pass_arguments" = "no"; then
  case "$target_os" in
    freebsd2*)	enable_fake_main=yes;;
    freebsd*)	;;
    netbsd*)	enable_fake_main=yes;;
    openbsd*)	enable_fake_main=yes;;
    *sysv*)	enable_fake_main=yes;;
  esac
fi

GS_FAKE_MAIN=0
if test "$enable_fake_main" = "yes"; then
  GS_FAKE_MAIN=1
elif test "$enable_pass_arguments" = "no"; then
  if test "$objc_load_method_worked" = yes -a \( "$ac_cv_sys_procfs" = yes -o "$have_kvm_env" = 1 -o "$ac_cv_sys_procfs_psinfo" = yes \); then
    GS_FAKE_MAIN=0
  else
    GS_FAKE_MAIN=1
    enable_fake_main=yes
  fi
fi
case "$target_os" in
    mingw*)	enable_fake_main=no; GS_FAKE_MAIN=0;;
esac
AC_SUBST(GS_FAKE_MAIN)
AC_MSG_RESULT($enable_fake_main)

#--------------------------------------------------------------------
# Simple way to add a bunch of paths to the flags
#--------------------------------------------------------------------
AC_ARG_WITH(include-flags,
    [  --with-include-flags=FLAGS    Specify all include flags at once],
    include_flags="$withval", include_flags="no")
if test ${include_flags} != "no"; then
    CPPFLAGS="$CPPFLAGS ${include_flags}"
    INCLUDE_FLAGS="$INCLUDE_FLAGS ${include_flags}"
fi

AC_ARG_WITH(library-flags,
    [  --with-library-flags=FLAGS    Specify all library flags at once],
    library_flags="$withval", library_flags="no")
if test ${library_flags} != "no"; then
    LDFLAGS="$LDFLAGS ${library_flags}"
    LDIR_FLAGS="$LDIR_FLAGS ${library_flags}"
fi

#--------------------------------------------------------------------
# Check for FFI interface libraries for invocations
# We enable ffcall by default now.
#--------------------------------------------------------------------
do_enable_libffi=no

AC_ARG_ENABLE(libffi,
  [  --enable-libffi  		Enable use of libffi library],,
  enable_libffi=$do_enable_libffi)

AC_ARG_ENABLE(ffcall,
  [  --enable-ffcall  		Enable use of ffcall library],,
  enable_ffcall=yes)

AC_ARG_ENABLE(do,
  [  --disable-do			Compile even if DO-dependencies are not met],,
  enable_do=yes)

# DO isn't used on apple-apple-apple
if test $LIBRARY_COMBO = apple-apple-apple; then
  enable_do=no
fi

AC_ARG_WITH(ffi-include,
[  --with-ffi-include=PATH       Include path for ffi (ffcall/libffi) headers],
    ffi_incdir="$withval", ffi_incdir="no")
if test ${ffi_incdir} != "no"; then
    CPPFLAGS="$CPPFLAGS -I${ffi_incdir}"
    INCLUDE_FLAGS="$INCLUDE_FLAGS -I${ffi_incdir}"
fi

AC_ARG_WITH(ffi-library,
[  --with-ffi-library=PATH       Library path for ffi (ffcall/libffi) libs],
    ffi_libdir="$withval", ffi_libdir="no")
if test ${ffi_libdir} != "no"; then
GS_ADD_LIBRARY_PATH([${ffi_libdir}])
fi

AC_CHECK_HEADER(ffi.h, have_libffi=yes, have_libffi=no)
AC_CHECK_HEADERS(callback.h, have_ffcall=yes, have_ffcall=no)
if test $have_ffcall = no; then
  enable_ffcall=no
  # If we don't have ffcall but do have libffi, use libffi
  if test $have_libffi = yes; then
    enable_libffi=yes
  fi
fi
if test $have_libffi = no; then
  enable_libffi=no
fi

have_forward_hook=yes
saved_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $OBJCFLAGS -x objective-c"
AC_MSG_CHECKING(for forwarding callback in runtime)
AC_COMPILE_IFELSE([#include "$srcdir/config/config.forward2.m"],
	have_forward_hook=yes, have_forward_hook=no)
if test $have_forward_hook = yes; then
  AC_DEFINE(HAVE_FORWARD2,1,
            [Define if libobjc has the __objc_msg_forward2 function])
else
  AC_COMPILE_IFELSE([#include "$srcdir/config/config.forward.m"],
	have_forward_hook=yes, have_forward_hook=no)
fi
AC_MSG_RESULT($have_forward_hook)
if test $have_forward_hook = no; then
  enable_libffi=no
  enable_ffcall=no
fi
CPPFLAGS="$saved_CPPFLAGS"

AC_MSG_CHECKING(FFI library usage)
WITH_FFI=none
if test $enable_libffi = yes; then
  AC_DEFINE(USE_LIBFFI,1,
            [Define if using the libffi library for invocations])
  WITH_FFI=libffi
  LIBS="-lffi $LIBS"
  AC_TRY_LINK([#include <ffi.h>], ,ffi_ok="yes", ffi_ok="no")
  if test $ffi_ok = yes; then
    AC_MSG_RESULT(libffi)
  fi
elif test $enable_ffcall = yes; then
  AC_DEFINE(USE_FFCALL,1,
            [Define if using the ffcall library for invocations])
  WITH_FFI=ffcall
  LIBS="-lcallback -lavcall $LIBS"
  AC_TRY_LINK([#include <callback.h>], , ffi_ok="yes", ffi_ok="no")
  if test $ffi_ok = yes; then
    AC_MSG_RESULT(ffcall)
  fi
  AC_MSG_CHECKING(if ffcall trampolines work)
  AC_RUN_IFELSE([#include "$srcdir/config/config.trampoline.c"],
	  have_working_trampoline=yes, have_working_trampoline=no, 
	  have_working_trampoline=yes)
  AC_MSG_RESULT($have_working_trampoline)
  if test $have_working_trampoline = no; then
    ffi_ok=no
  fi
else
  ffi_ok=no
fi

if test $ffi_ok = no; then
  AC_MSG_RESULT(none)
  echo
  if test $have_forward_hook = no; then
    echo "You do not have an up-to-date libobjc library installed"
  elif test "$have_working_trampoline" = no; then
    echo "You have ffcall, but it does not work properly. Most likely because"
    echo "your system's security policy is blocking some parts of ffcall"
    echo "we recommend installing libffi instead."
  else
    echo "You do not have either ffcall or libffi installed, or configure needs"
    echo "--with-ffi-include and/or --with-ffi-library flags so GNUstep can find them"
  fi
  echo "GNUstep requires ffcall or libffi and proper libobjc hooks to do"
  echo "invocations and DO."
  echo "(This does not apply on apple-apple-apple systems where DO is"
  echo "not compatible with other GNUstep systems.)"
  if test $enable_do = yes; then
    echo
    echo "You most likely do not want to build base without DO support. Many"
    echo "things, including all applications, won't work at all without DO."
    echo "If you really want to build -base without DO support, add --disable-do"
    echo "to the configure arguments."
    echo "For more information, read the GNUstep build guide, ffcall section:"
    echo "http://gnustep.made-it.com/BuildGuide/index.html"
    AC_MSG_ERROR([Incomplete support for ffi functionality.])
  fi
  AC_MSG_WARN([Incomplete support for ffi funtionality.])
fi
AC_SUBST(WITH_FFI)


#--------------------------------------------------------------------
# Check for iconv support (for Unicode conversion).
#--------------------------------------------------------------------
# Do this before checking for xml2,  as xml2 may require iconv.
#
# We need to find an iconv library that matches the installed iconv.h header
# (if any). It is important to check header/library compatibility. It's
# fairly common to have iconv support both in libc and from libiconv. In that
# case, a naive check that iconv() is in libc will succeed, but if we use
# libiconv's iconv.h, it will redefine iconv() to functions that exist
# only in libiconv, and we'll get link errors.
#
# First, check if there's a working iconv in libc (ie. if the test program
# compiles and links without any extra flags).
AC_MSG_CHECKING(iconv support)
AC_LINK_IFELSE([[#include <iconv.h>
int main(int argc,char **argv) { iconv_open("foo","bar"); }]]
,
  # libc has a working iconv.
  AC_DEFINE(HAVE_ICONV,1, [Define if you have this function])
  AC_MSG_RESULT([[yes, in libc]])
  found_iconv=yes
,
  found_iconv=no
)

if test $found_iconv = no ; then
  # libc doesn't have a working iconv. Try adding -liconv and any user
  # supplied directory.
  AC_ARG_WITH(libiconv-library,
    [  --with-libiconv-library=PATH  Library path for libiconv libraries],
    libiconv_libdir="$withval", libiconv_libdir="no")

  if test "$libiconv_libdir" != "no"; then
	GS_ADD_LIBRARY_PATH([${libiconv_libdir}])
  fi

  old_LIBS="$LIBS"
  LIBS="-liconv $LIBS"
  AC_LINK_IFELSE([[#include <iconv.h>
  int main(int argc,char **argv) { iconv_open("foo","bar"); }]]
  ,
    # -liconv works.
    AC_DEFINE(HAVE_ICONV,1, [Define if you have this function])
    AC_MSG_RESULT([[yes, -liconv]])
    found_iconv=yes
  ,
    found_iconv=no
    LIBS="$old_LIBS"
  )
fi

if test $found_iconv = no ; then
  # -liconv didn't work. Try giconv.h and -lgiconv.
  # BSDs install this lib as libgiconv.
  old_LIBS="$LIBS"
  LIBS="-lgiconv $LIBS"
  AC_LINK_IFELSE([[#include <giconv.h>
  int main(int argc,char **argv) { iconv_open("foo","bar"); }]]
  ,
    AC_DEFINE(HAVE_ICONV,1, [Define if you have this function])
    AC_DEFINE(HAVE_GICONV,1, [Define if you have this function])
    AC_MSG_RESULT([[yes, -lgiconv]])
  ,
    AC_MSG_RESULT([[no]])
    LIBS="$old_LIBS"
  )
fi

#--------------------------------------------------------------------
# Check recent libxml for Properytlists, GSXML, GSDoc etc.
#--------------------------------------------------------------------

AC_ARG_ENABLE(xml,
  [  --disable-xml			Compile even if XML-dependencies are not met],,
  enable_xml=yes)

if test $enable_xml = yes; then
  # Save CFLAGS and LIBS as AM_PATH_XML clobbers these variables regardless
  # of the success of the macro.
  saved_LIBS="$LIBS"
  saved_CFLAGS="$CFLAGS"

  AM_PATH_XML(2.3.0, enable_libxml=yes, enable_libxml=no)
  if test $enable_libxml = yes; then
    CPPFLAGS="$CPPFLAGS $XML_CFLAGS"
    INCLUDE_FLAGS="$INCLUDE_FLAGS $XML_CFLAGS"
    LIBS="$XML_LIBS $LIBS"
    HAVE_LIBXML=1
    AC_DEFINE(HAVE_LIBXML,1,[Define if libxml available])
    AC_CHECK_HEADERS(libxml/SAX2.h)
    #--------------------------------------------------------------------
    # Check for (optional) libxslt
    #--------------------------------------------------------------------
    AC_ARG_ENABLE(xslt,
      [  --disable-xslt		Compile even if XSLT-dependency is not met],,
      enable_xslt=yes)

    if test $enable_xslt = yes; then
      AC_CHECK_LIB(xslt, xsltApplyStylesheet, xslt_ok=yes, xslt_ok=no)
      if test "$xslt_ok" = "yes"; then
	AC_CHECK_HEADER(libxslt/xslt.h, xslthdr_ok=yes, xslthdr_ok=no)
	if test "$xslthdr_ok" = "no"; then
	  xslt_ok=no
	fi
      fi
      if test "$xslt_ok" = "yes"; then
	HAVE_LIBXSLT=1
	AC_DEFINE(HAVE_LIBXSLT,1,[Define if libxslt available])
	LIBS="-lxslt $LIBS"
      else
	echo
	echo "You most likely do not want to build base without XSLT support."
	echo "If you really want to build -base without XSLT support,"
	echo "add --disable-xslt to the configure arguments."
	AC_MSG_WARN([Missing support for XSLT functionality.])
      fi
    else
      HAVE_LIBXSLT=0
      AC_MSG_WARN([Disabled support for XSLT funtionality.])
    fi
    AC_SUBST(HAVE_LIBXSLT)
  else
    HAVE_LIBXML=0
    # Restore the CFLAGS and LIBS because AM_PATH_XML messes them
    LIBS="$saved_LIBS"
    CFLAGS="$saved_CFLAGS"
    echo
    echo "You most likely do not want to build base without XML support."
    echo "For instance, MacOS-X compatible property lists require XML."
    echo "If you really want to build -base without XML support,"
    echo "add --disable-xml to the configure arguments."
    AC_MSG_ERROR([Missing support for XML functionality.])
  fi
else
  AC_MSG_WARN([Disabled support for XML funtionality.])
  HAVE_LIBXML=0
fi
AC_SUBST(HAVE_LIBXML)

#--------------------------------------------------------------------
# Check for NSNetServices
#--------------------------------------------------------------------
HAVE_MDNS=0
AC_CHECK_HEADERS(dns_sd.h, have_mdns=yes, have_mdns=no)
if test "$have_mdns" = "yes"; then
  AC_CHECK_LIB(dns_sd, DNSServiceBrowse, have_mdns=yes, have_mdns=no)
  if test "$have_mdns" = "yes"; then
    LIBS="-ldns_sd $LIBS"
    HAVE_MDNS=1
  fi
fi
AC_SUBST(HAVE_MDNS)

#--------------------------------------------------------------------
# Check GMP for NSDecimal
#--------------------------------------------------------------------
AC_ARG_WITH(gmp-include,
  [  --with-gmp-include=PATH  include path for gmp headers],
  gmp_incdir="$withval", gmp_incdir="no")

AC_ARG_WITH(gmp-library,
  [  --with-gmp-library=PATH  library path for gmp libraries],
  gmp_libdir="$withval", gmp_libdir="no")

libs_temp=$LIBS

if test "$gmp_incdir" != "no"; then
  CPPFLAGS="$CPPFLAGS -I$gmp_incdir"
  INCLUDE_FLAGS="$INCLUDE_FLAGS -I$gmp_incdir"
fi
if test "$gmp_libdir" != "no"; then
  GS_ADD_LIBRARY_PATH([${gmp_libdir}])
fi

USE_GMP=0
AC_CHECK_HEADERS(gmp.h)
if test $ac_cv_header_gmp_h = yes; then
  AC_CHECK_LIB(gmp, mpf_abs, gmp_ok=yes, gmp_ok=no)
  if test "$gmp_ok" = no; then
    AC_CHECK_LIB(gmp, __gmpf_abs, gmp_ok=yes, gmp_ok=no)
  fi
  if test "$gmp_ok" = yes; then
    LIBS="-lgmp $LIBS"
    USE_GMP=1
  fi
fi

AC_SUBST(USE_GMP)

#--------------------------------------------------------------------
# Check whether nl_langinfo(CODESET) is supported, needed by Unicode.m.
#--------------------------------------------------------------------
AM_LANGINFO_CODESET


AC_SUBST(INCLUDE_FLAGS)
AC_SUBST(LDIR_FLAGS)

#--------------------------------------------------------------------
# Configure flags from sub-configure runs, so they show up in our
# help file.
#--------------------------------------------------------------------
AC_ARG_ENABLE(openssl,
  [  --disable-openssl		Disable support for openssl in URL classes],,
  enable_openssl=yes)
AC_ARG_WITH(openssl-include,
  [  --with-openssl-include=PATH  include path for openssl headers],
  openssl_incdir="$withval", openssl_incdir="no")
AC_ARG_WITH(openssl-library,
  [  --with-openssl-library=PATH  library path for openssl libraries],
  openssl_libdir="$withval", openssl_libdir="no")

AC_CONFIG_SUBDIRS(Source/mframe SSL)

#--------------------------------------------------------------------
# Record the version
#--------------------------------------------------------------------
AC_MSG_CHECKING(for the version of gnustep-base we are compiling)
if test -f "Version"; then
  . ./Version
fi
AC_MSG_RESULT($VERSION)
AC_SUBST(VERSION)
AC_SUBST(MAJOR_VERSION)
AC_SUBST(MINOR_VERSION)
AC_SUBST(SUBMINOR_VERSION)
AC_SUBST(GCC_VERSION)

#--------------------------------------------------------------------
# Write the Makefiles
#--------------------------------------------------------------------
AC_CONFIG_FILES([config.mak base.make Headers/Additions/GNUstepBase/GSConfig.h 
	  Headers/Additions/GNUstepBase/preface.h])
AC_OUTPUT