Re-generated libconfig parser and scanner

This overrides previous manual edits to the machine-generated files, and
is supposed to make it much easier to maintain in future.

There should be no functional changes at all, but if there's any issue,
please let me know.

Signed-off-by: Haru <haru@dotalux.com>

16 files changed, 9391 insertions, 230 deletions

diff --git a/3rdparty/libconfig/extra/.gitignore b/3rdparty/libconfig/extra/.gitignore
new file mode 100644
index 000000000..03f1609a0
--- /dev/null
+++ b/3rdparty/libconfig/extra/.gitignore
@@ -0,0 +1,5 @@
+/config.log
+/config.status
+/gen/*.c
+/gen/*.h
+/autom4te.cache
diff --git a/3rdparty/libconfig/extra/aux-build/ylwrap b/3rdparty/libconfig/extra/aux-build/ylwrap
new file mode 100755
index 000000000..8f072a8e9
--- /dev/null
+++ b/3rdparty/libconfig/extra/aux-build/ylwrap
@@ -0,0 +1,247 @@
+#! /bin/sh
+# ylwrap - wrapper for lex/yacc invocations.
+
+scriptversion=2013-01-12.17; # UTC
+
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+#
+# Written by Tom Tromey <tromey@cygnus.com>.
+#
+# This program 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, or (at your option)
+# any later version.
+#
+# This program 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/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+get_dirname ()
+{
+  case $1 in
+    */*|*\\*) printf '%s\n' "$1" | sed -e 's|\([\\/]\)[^\\/]*$|\1|';;
+    # Otherwise,  we want the empty string (not ".").
+  esac
+}
+
+# guard FILE
+# ----------
+# The CPP macro used to guard inclusion of FILE.
+guard ()
+{
+  printf '%s\n' "$1"                                                    \
+    | sed                                                               \
+        -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'   \
+        -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'                        \
+        -e 's/__*/_/g'
+}
+
+# quote_for_sed [STRING]
+# ----------------------
+# Return STRING (or stdin) quoted to be used as a sed pattern.
+quote_for_sed ()
+{
+  case $# in
+    0) cat;;
+    1) printf '%s\n' "$1";;
+  esac \
+    | sed -e 's|[][\\.*]|\\&|g'
+}
+
+case "$1" in
+  '')
+    echo "$0: No files given.  Try '$0 --help' for more information." 1>&2
+    exit 1
+    ;;
+  --basedir)
+    basedir=$2
+    shift 2
+    ;;
+  -h|--h*)
+    cat <<\EOF
+Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
+
+Wrapper for lex/yacc invocations, renaming files as desired.
+
+  INPUT is the input file
+  OUTPUT is one file PROG generates
+  DESIRED is the file we actually want instead of OUTPUT
+  PROGRAM is program to run
+  ARGS are passed to PROG
+
+Any number of OUTPUT,DESIRED pairs may be used.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v|--v*)
+    echo "ylwrap $scriptversion"
+    exit $?
+    ;;
+esac
+
+
+# The input.
+input=$1
+shift
+# We'll later need for a correct munging of "#line" directives.
+input_sub_rx=`get_dirname "$input" | quote_for_sed`
+case $input in
+  [\\/]* | ?:[\\/]*)
+    # Absolute path; do nothing.
+    ;;
+  *)
+    # Relative path.  Make it absolute.
+    input=`pwd`/$input
+    ;;
+esac
+input_rx=`get_dirname "$input" | quote_for_sed`
+
+# Since DOS filename conventions don't allow two dots,
+# the DOS version of Bison writes out y_tab.c instead of y.tab.c
+# and y_tab.h instead of y.tab.h. Test to see if this is the case.
+y_tab_nodot=false
+if test -f y_tab.c || test -f y_tab.h; then
+  y_tab_nodot=true
+fi
+
+# The parser itself, the first file, is the destination of the .y.c
+# rule in the Makefile.
+parser=$1
+
+# A sed program to s/FROM/TO/g for all the FROM/TO so that, for
+# instance, we rename #include "y.tab.h" into #include "parse.h"
+# during the conversion from y.tab.c to parse.c.
+sed_fix_filenames=
+
+# Also rename header guards, as Bison 2.7 for instance uses its header
+# guard in its implementation file.
+sed_fix_header_guards=
+
+while test $# -ne 0; do
+  if test x"$1" = x"--"; then
+    shift
+    break
+  fi
+  from=$1
+  # Handle y_tab.c and y_tab.h output by DOS
+  if $y_tab_nodot; then
+    case $from in
+      "y.tab.c") from=y_tab.c;;
+      "y.tab.h") from=y_tab.h;;
+    esac
+  fi
+  shift
+  to=$1
+  shift
+  sed_fix_filenames="${sed_fix_filenames}s|"`quote_for_sed "$from"`"|$to|g;"
+  sed_fix_header_guards="${sed_fix_header_guards}s|"`guard "$from"`"|"`guard "$to"`"|g;"
+done
+
+# The program to run.
+prog=$1
+shift
+# Make any relative path in $prog absolute.
+case $prog in
+  [\\/]* | ?:[\\/]*) ;;
+  *[\\/]*) prog=`pwd`/$prog ;;
+esac
+
+dirname=ylwrap$$
+do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
+trap "ret=129; $do_exit" 1
+trap "ret=130; $do_exit" 2
+trap "ret=141; $do_exit" 13
+trap "ret=143; $do_exit" 15
+mkdir $dirname || exit 1
+
+cd $dirname
+
+case $# in
+  0) "$prog" "$input" ;;
+  *) "$prog" "$@" "$input" ;;
+esac
+ret=$?
+
+if test $ret -eq 0; then
+  for from in *
+  do
+    to=`printf '%s\n' "$from" | sed "$sed_fix_filenames"`
+    if test -f "$from"; then
+      # If $2 is an absolute path name, then just use that,
+      # otherwise prepend '../'.
+      case $to in
+        [\\/]* | ?:[\\/]*) target=$to;;
+        *) target=../$to;;
+      esac
+
+      # Do not overwrite unchanged header files to avoid useless
+      # recompilations.  Always update the parser itself: it is the
+      # destination of the .y.c rule in the Makefile.  Divert the
+      # output of all other files to a temporary file so we can
+      # compare them to existing versions.
+      if test $from != $parser; then
+        realtarget=$target
+        target=tmp-`printf '%s\n' "$target" | sed 's|.*[\\/]||g'`
+      fi
+
+      # Munge "#line" or "#" directives.  Don't let the resulting
+      # debug information point at an absolute srcdir.  Use the real
+      # output file name, not yy.lex.c for instance.  Adjust the
+      # include guards too.
+      sed -e "/^#/!b"                           \
+          -e "s|$input_rx|$input_sub_rx|"       \
+          -e "$sed_fix_filenames"               \
+          -e "$sed_fix_header_guards"           \
+        "$from" >"$target" || ret=$?
+
+      # Check whether files must be updated.
+      if test "$from" != "$parser"; then
+        if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
+          echo "$to is unchanged"
+          rm -f "$target"
+        else
+          echo "updating $to"
+          mv -f "$target" "$realtarget"
+        fi
+      fi
+    else
+      # A missing file is only an error for the parser.  This is a
+      # blatant hack to let us support using "yacc -d".  If -d is not
+      # specified, don't fail when the header file is "missing".
+      if test "$from" = "$parser"; then
+        ret=1
+      fi
+    fi
+  done
+fi
+
+# Remove the directory.
+cd ..
+rm -rf $dirname
+
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/3rdparty/libconfig/extra/configure b/3rdparty/libconfig/extra/configure
new file mode 100755
index 000000000..43a962bdf
--- /dev/null
+++ b/3rdparty/libconfig/extra/configure
@@ -0,0 +1,5560 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.69 for libconfig 1.4.9.
+#
+# Report bugs to <hyperrealm@gmail.com>.
+#
+#
+# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+#
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Use a proper internal environment variable to ensure we don't fall
+  # into an infinite loop, continuously re-executing ourselves.
+  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+    _as_can_reexec=no; export _as_can_reexec;
+    # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+as_fn_exit 255
+  fi
+  # We don't want this to propagate to other subprocesses.
+          { _as_can_reexec=; unset _as_can_reexec;}
+if test "x$CONFIG_SHELL" = x; then
+  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1"
+  if (eval "$as_required") 2>/dev/null; then :
+  as_have_required=yes
+else
+  as_have_required=no
+fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  as_found=:
+  case $as_dir in #(
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir/$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  break 2
+fi
+fi
+	   done;;
+       esac
+  as_found=false
+done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
+IFS=$as_save_IFS
+
+
+      if test "x$CONFIG_SHELL" != x; then :
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+fi
+
+    if test x$as_have_required = xno; then :
+  $as_echo "$0: This script requires a shell more modern than all"
+  $as_echo "$0: the shells that I found on your system."
+  if test x${ZSH_VERSION+set} = xset ; then
+    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    $as_echo "$0: Please tell bug-autoconf@gnu.org and
+$0: hyperrealm@gmail.com about your system, including any
+$0: error possibly output before this message. Then install
+$0: a modern shell, or manually run the script under such a
+$0: shell if you do have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+test -n "$DJDIR" || exec 7<&0 </dev/null
+exec 6>&1
+
+# Name of the host.
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_clean_files=
+ac_config_libobj_dir=.
+LIBOBJS=
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+
+# Identity of this package.
+PACKAGE_NAME='libconfig'
+PACKAGE_TARNAME='libconfig'
+PACKAGE_VERSION='1.4.9'
+PACKAGE_STRING='libconfig 1.4.9'
+PACKAGE_BUGREPORT='hyperrealm@gmail.com'
+PACKAGE_URL='http://www.hyperrealm.com/main.php?s=libconfig'
+
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
+
+ac_subst_vars='LTLIBOBJS
+LIBOBJS
+YFLAGS
+YACC
+LEXLIB
+LEX_OUTPUT_ROOT
+LEX
+EGREP
+GREP
+CPP
+OBJEXT
+EXEEXT
+ac_ct_CC
+CPPFLAGS
+LDFLAGS
+CFLAGS
+CC
+SET_MAKE
+target_alias
+host_alias
+build_alias
+LIBS
+ECHO_T
+ECHO_N
+ECHO_C
+DEFS
+mandir
+localedir
+libdir
+psdir
+pdfdir
+dvidir
+htmldir
+infodir
+docdir
+oldincludedir
+includedir
+localstatedir
+sharedstatedir
+sysconfdir
+datadir
+datarootdir
+libexecdir
+sbindir
+bindir
+program_transform_name
+prefix
+exec_prefix
+PACKAGE_URL
+PACKAGE_BUGREPORT
+PACKAGE_STRING
+PACKAGE_VERSION
+PACKAGE_TARNAME
+PACKAGE_NAME
+PATH_SEPARATOR
+SHELL'
+ac_subst_files=''
+ac_user_opts='
+enable_option_checking
+'
+      ac_precious_vars='build_alias
+host_alias
+target_alias
+CC
+CFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+CPP
+YACC
+YFLAGS'
+
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+ac_unrecognized_opts=
+ac_unrecognized_sep=
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datarootdir='${prefix}/share'
+datadir='${datarootdir}'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
+infodir='${datarootdir}/info'
+htmldir='${docdir}'
+dvidir='${docdir}'
+pdfdir='${docdir}'
+psdir='${docdir}'
+libdir='${exec_prefix}/lib'
+localedir='${datarootdir}/locale'
+mandir='${datarootdir}/man'
+
+ac_prev=
+ac_dashdash=
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval $ac_prev=\$ac_option
+    ac_prev=
+    continue
+  fi
+
+  case $ac_option in
+  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *=)   ac_optarg= ;;
+  *)    ac_optarg=yes ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case $ac_dashdash$ac_option in
+  --)
+    ac_dashdash=yes ;;
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir=$ac_optarg ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build_alias ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build_alias=$ac_optarg ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
+
+  -datadir | --datadir | --datadi | --datad)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=*)
+    datadir=$ac_optarg ;;
+
+  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
+  | --dataroo | --dataro | --datar)
+    ac_prev=datarootdir ;;
+  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
+  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
+    datarootdir=$ac_optarg ;;
+
+  -disable-* | --disable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=no ;;
+
+  -docdir | --docdir | --docdi | --doc | --do)
+    ac_prev=docdir ;;
+  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
+    docdir=$ac_optarg ;;
+
+  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
+    ac_prev=dvidir ;;
+  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
+    dvidir=$ac_optarg ;;
+
+  -enable-* | --enable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=\$ac_optarg ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix=$ac_optarg ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host_alias ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host_alias=$ac_optarg ;;
+
+  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+    ac_prev=htmldir ;;
+  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+  | --ht=*)
+    htmldir=$ac_optarg ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir=$ac_optarg ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir=$ac_optarg ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir=$ac_optarg ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir=$ac_optarg ;;
+
+  -localedir | --localedir | --localedi | --localed | --locale)
+    ac_prev=localedir ;;
+  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+    localedir=$ac_optarg ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst | --locals)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
+    localstatedir=$ac_optarg ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir=$ac_optarg ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c | -n)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir=$ac_optarg ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix=$ac_optarg ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix=$ac_optarg ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix=$ac_optarg ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name=$ac_optarg ;;
+
+  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+    ac_prev=pdfdir ;;
+  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+    pdfdir=$ac_optarg ;;
+
+  -psdir | --psdir | --psdi | --psd | --ps)
+    ac_prev=psdir ;;
+  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+    psdir=$ac_optarg ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir=$ac_optarg ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir=$ac_optarg ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site=$ac_optarg ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir=$ac_optarg ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir=$ac_optarg ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target_alias ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target_alias=$ac_optarg ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
+
+  -with-* | --with-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=\$ac_optarg ;;
+
+  -without-* | --without-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=no ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes=$ac_optarg ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries=$ac_optarg ;;
+
+  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
+    ;;
+
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+    esac
+    eval $ac_envvar=\$ac_optarg
+    export $ac_envvar ;;
+
+  *)
+    # FIXME: should be removed in autoconf 3.0.
+    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  as_fn_error $? "missing argument to $ac_option"
+fi
+
+if test -n "$ac_unrecognized_opts"; then
+  case $enable_option_checking in
+    no) ;;
+    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+  esac
+fi
+
+# Check all directory arguments for consistency.
+for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
+		datadir sysconfdir sharedstatedir localstatedir includedir \
+		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+		libdir localedir mandir
+do
+  eval ac_val=\$$ac_var
+  # Remove trailing slashes.
+  case $ac_val in
+    */ )
+      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
+      eval $ac_var=\$ac_val;;
+  esac
+  # Be sure to have absolute directory names.
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* )  continue;;
+    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
+  esac
+  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+  as_fn_error $? "working directory cannot be determined"
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+  as_fn_error $? "pwd does not report name of working directory"
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then the parent directory.
+  ac_confdir=`$as_dirname -- "$as_myself" ||
+$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_myself" : 'X\(//\)[^/]' \| \
+	 X"$as_myself" : 'X\(//\)$' \| \
+	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_myself" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  srcdir=$ac_confdir
+  if test ! -r "$srcdir/$ac_unique_file"; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+fi
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+	pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+  srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
+for ac_var in $ac_precious_vars; do
+  eval ac_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_env_${ac_var}_value=\$${ac_var}
+  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+  # Omit some internal or obsolete options to make the list less imposing.
+  # This message is too long to be a string in the A/UX 3.1 sh.
+  cat <<_ACEOF
+\`configure' configures libconfig 1.4.9 to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking ...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR            user executables [EPREFIX/bin]
+  --sbindir=DIR           system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR        program executables [EPREFIX/libexec]
+  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --libdir=DIR            object code libraries [EPREFIX/lib]
+  --includedir=DIR        C header files [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
+  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
+  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --infodir=DIR           info documentation [DATAROOTDIR/info]
+  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
+  --mandir=DIR            man documentation [DATAROOTDIR/man]
+  --docdir=DIR            documentation root [DATAROOTDIR/doc/libconfig]
+  --htmldir=DIR           html documentation [DOCDIR]
+  --dvidir=DIR            dvi documentation [DOCDIR]
+  --pdfdir=DIR            pdf documentation [DOCDIR]
+  --psdir=DIR             ps documentation [DOCDIR]
+_ACEOF
+
+  cat <<\_ACEOF
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+  case $ac_init_help in
+     short | recursive ) echo "Configuration of libconfig 1.4.9:";;
+   esac
+  cat <<\_ACEOF
+
+Some influential environment variables:
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
+              nonstandard directory <lib dir>
+  LIBS        libraries to pass to the linker, e.g. -l<library>
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
+              you have headers in a nonstandard directory <include dir>
+  CPP         C preprocessor
+  YACC        The `Yet Another Compiler Compiler' implementation to use.
+              Defaults to the first program found out of: `bison -y', `byacc',
+              `yacc'.
+  YFLAGS      The list of arguments that will be passed by default to $YACC.
+              This script will default YFLAGS to the empty string to avoid a
+              default value of `-d' given by some make applications.
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to <hyperrealm@gmail.com>.
+libconfig home page: <http://www.hyperrealm.com/main.php?s=libconfig>.
+_ACEOF
+ac_status=$?
+fi
+
+if test "$ac_init_help" = "recursive"; then
+  # If there are subdirs, report their specific --help.
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d "$ac_dir" ||
+      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
+      continue
+    ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+    cd "$ac_dir" || { ac_status=$?; continue; }
+    # Check for guested configure.
+    if test -f "$ac_srcdir/configure.gnu"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+    elif test -f "$ac_srcdir/configure"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure" --help=recursive
+    else
+      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+    fi || ac_status=$?
+    cd "$ac_pwd" || { ac_status=$?; break; }
+  done
+fi
+
+test -n "$ac_init_help" && exit $ac_status
+if $ac_init_version; then
+  cat <<\_ACEOF
+libconfig configure 1.4.9
+generated by GNU Autoconf 2.69
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+  exit
+fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
+
+# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists, giving a warning if it cannot be compiled using
+# the include files in INCLUDES and setting the cache variable VAR
+# accordingly.
+ac_fn_c_check_header_mongrel ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if eval \${$3+:} false; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_header_compiler=yes
+else
+  ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$2>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  ac_header_preproc=yes
+else
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
+  yes:no: )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+  no:yes:* )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+( $as_echo "## ----------------------------------- ##
+## Report this to hyperrealm@gmail.com ##
+## ----------------------------------- ##"
+     ) | sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_mongrel
+
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_c_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_compile
+
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+
+# ac_fn_c_check_func LINENO FUNC VAR
+# ----------------------------------
+# Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_c_check_func ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $2 innocuous_$2
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $2 (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $2
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int
+main ()
+{
+return $2 ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_func
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by libconfig $as_me 1.4.9, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    $as_echo "PATH: $as_dir"
+  done
+IFS=$as_save_IFS
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+  for ac_arg
+  do
+    case $ac_arg in
+    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+    | -silent | --silent | --silen | --sile | --sil)
+      continue ;;
+    *\'*)
+      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    case $ac_pass in
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
+    2)
+      as_fn_append ac_configure_args1 " '$ac_arg'"
+      if test $ac_must_keep_next = true; then
+	ac_must_keep_next=false # Got value, back to normal.
+      else
+	case $ac_arg in
+	  *=* | --config-cache | -C | -disable-* | --disable-* \
+	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+	  | -with-* | --with-* | -without-* | --without-* | --x)
+	    case "$ac_configure_args0 " in
+	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+	    esac
+	    ;;
+	  -* ) ac_must_keep_next=true ;;
+	esac
+      fi
+      as_fn_append ac_configure_args " '$ac_arg'"
+      ;;
+    esac
+  done
+done
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
+trap 'exit_status=$?
+  # Save into config.log some information that might help in debugging.
+  {
+    echo
+
+    $as_echo "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+    echo
+    # The following way of writing the cache mishandles newlines in values,
+(
+  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+  (set) 2>&1 |
+    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      sed -n \
+	"s/'\''/'\''\\\\'\'''\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+      ;; #(
+    *)
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+)
+    echo
+
+    $as_echo "## ----------------- ##
+## Output variables. ##
+## ----------------- ##"
+    echo
+    for ac_var in $ac_subst_vars
+    do
+      eval ac_val=\$$ac_var
+      case $ac_val in
+      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      esac
+      $as_echo "$ac_var='\''$ac_val'\''"
+    done | sort
+    echo
+
+    if test -n "$ac_subst_files"; then
+      $as_echo "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
+      echo
+      for ac_var in $ac_subst_files
+      do
+	eval ac_val=\$$ac_var
+	case $ac_val in
+	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	esac
+	$as_echo "$ac_var='\''$ac_val'\''"
+      done | sort
+      echo
+    fi
+
+    if test -s confdefs.h; then
+      $as_echo "## ----------- ##
+## confdefs.h. ##
+## ----------- ##"
+      echo
+      cat confdefs.h
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      $as_echo "$as_me: caught signal $ac_signal"
+    $as_echo "$as_me: exit $exit_status"
+  } >&5
+  rm -f core *.core core.conftest.* &&
+    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
+    exit $exit_status
+' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -f -r conftest* confdefs.h
+
+$as_echo "/* confdefs.h */" > confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer an explicitly selected file to automatically selected ones.
+ac_site_file1=NONE
+ac_site_file2=NONE
+if test -n "$CONFIG_SITE"; then
+  # We do not want a PATH search for config.site.
+  case $CONFIG_SITE in #((
+    -*)  ac_site_file1=./$CONFIG_SITE;;
+    */*) ac_site_file1=$CONFIG_SITE;;
+    *)   ac_site_file1=./$CONFIG_SITE;;
+  esac
+elif test "x$prefix" != xNONE; then
+  ac_site_file1=$prefix/share/config.site
+  ac_site_file2=$prefix/etc/config.site
+else
+  ac_site_file1=$ac_default_prefix/share/config.site
+  ac_site_file2=$ac_default_prefix/etc/config.site
+fi
+for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+do
+  test "x$ac_site_file" = xNONE && continue
+  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+    sed 's/^/| /' "$ac_site_file" >&5
+    . "$ac_site_file" \
+      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+done
+
+if test -r "$cache_file"; then
+  # Some versions of bash will fail to source /dev/null (special files
+  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
+  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+$as_echo "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . "$cache_file";;
+      *)                      . "./$cache_file";;
+    esac
+  fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+$as_echo "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in $ac_precious_vars; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val=\$ac_cv_env_${ac_var}_value
+  eval ac_new_val=\$ac_env_${ac_var}_value
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,set)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+	# differences in whitespace do not lead to failure.
+	ac_old_val_w=`echo x $ac_old_val`
+	ac_new_val_w=`echo x $ac_new_val`
+	if test "$ac_old_val_w" != "$ac_new_val_w"; then
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  ac_cache_corrupted=:
+	else
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  eval $ac_var=\$ac_old_val
+	fi
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+      fi;;
+  esac
+  # Pass precious variables to config.status.
+  if test "$ac_new_set" = set; then
+    case $ac_new_val in
+    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
+    esac
+  fi
+done
+if $ac_cache_corrupted; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+fi
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+#AC_CANONICAL_TARGET
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: libconfig - made with pride in California" >&5
+$as_echo "$as_me: libconfig - made with pride in California" >&6;}
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
+set x ${MAKE-make}
+ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
+if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.make <<\_ACEOF
+SHELL = /bin/sh
+all:
+	@echo '@@@%%%=$(MAKE)=@@@%%%'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
+case `${MAKE-make} -f conftest.make 2>/dev/null` in
+  *@@@%%%=?*=@@@%%%*)
+    eval ac_cv_prog_make_${ac_make}_set=yes;;
+  *)
+    eval ac_cv_prog_make_${ac_make}_set=no;;
+esac
+rm -f conftest.make
+fi
+if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+  SET_MAKE=
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+  SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define TARGET "${target}"
+_ACEOF
+
+
+# Enable GNU extensions.
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
+ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+
+# The possible output files:
+ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
+
+ac_rmfiles=
+for ac_file in $ac_files
+do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+  esac
+done
+rm -f $ac_rmfiles
+
+if { { ac_try="$ac_link_default"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link_default") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile.  We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
+	;;
+    [ab].out )
+	# We found the default executable, but exeext='' is most
+	# certainly right.
+	break;;
+    *.* )
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	then :; else
+	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	fi
+	# We set ac_cv_exeext here because the later test for it is not
+	# safe: cross compilers may not add the suffix if given an `-o'
+	# argument, so we may need to know it at that point already.
+	# Even if this section looks crufty: it has the advantage of
+	# actually working.
+	break;;
+    * )
+	break;;
+  esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else
+  ac_file=''
+fi
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
+ac_exeext=$ac_cv_exeext
+
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+$as_echo_n "checking for suffix of executables... " >&6; }
+if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	  break;;
+    * ) break;;
+  esac
+done
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+$as_echo "$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+$as_echo_n "checking for suffix of object files... " >&6; }
+if ${ac_cv_objext+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  for ac_file in conftest.o conftest.obj conftest.*; do
+  test -f "$ac_file" || continue;
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+$as_echo "$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+else
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if ${ac_cv_prog_CPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in grep ggrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_GREP" || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in egrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP" || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+		  inttypes.h stdint.h unistd.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+
+  ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default"
+if test "x$ac_cv_header_minix_config_h" = xyes; then :
+  MINIX=yes
+else
+  MINIX=
+fi
+
+
+  if test "$MINIX" = yes; then
+
+$as_echo "#define _POSIX_SOURCE 1" >>confdefs.h
+
+
+$as_echo "#define _POSIX_1_SOURCE 2" >>confdefs.h
+
+
+$as_echo "#define _MINIX 1" >>confdefs.h
+
+  fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to define __EXTENSIONS__" >&5
+$as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; }
+if ${ac_cv_safe_to_define___extensions__+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#         define __EXTENSIONS__ 1
+          $ac_includes_default
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_safe_to_define___extensions__=yes
+else
+  ac_cv_safe_to_define___extensions__=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5
+$as_echo "$ac_cv_safe_to_define___extensions__" >&6; }
+  test $ac_cv_safe_to_define___extensions__ = yes &&
+    $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h
+
+  $as_echo "#define _ALL_SOURCE 1" >>confdefs.h
+
+  $as_echo "#define _GNU_SOURCE 1" >>confdefs.h
+
+  $as_echo "#define _POSIX_PTHREAD_SEMANTICS 1" >>confdefs.h
+
+  $as_echo "#define _TANDEM_SOURCE 1" >>confdefs.h
+
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+else
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+for ac_prog in flex lex
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_LEX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$LEX"; then
+  ac_cv_prog_LEX="$LEX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_LEX="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+LEX=$ac_cv_prog_LEX
+if test -n "$LEX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LEX" >&5
+$as_echo "$LEX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$LEX" && break
+done
+test -n "$LEX" || LEX=":"
+
+if test "x$LEX" != "x:"; then
+  cat >conftest.l <<_ACEOF
+%%
+a { ECHO; }
+b { REJECT; }
+c { yymore (); }
+d { yyless (1); }
+e { /* IRIX 6.5 flex 2.5.4 underquotes its yyless argument.  */
+    yyless ((input () != 0)); }
+f { unput (yytext[0]); }
+. { BEGIN INITIAL; }
+%%
+#ifdef YYTEXT_POINTER
+extern char *yytext;
+#endif
+int
+main (void)
+{
+  return ! yylex () + ! yywrap ();
+}
+_ACEOF
+{ { ac_try="$LEX conftest.l"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$LEX conftest.l") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking lex output file root" >&5
+$as_echo_n "checking lex output file root... " >&6; }
+if ${ac_cv_prog_lex_root+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+if test -f lex.yy.c; then
+  ac_cv_prog_lex_root=lex.yy
+elif test -f lexyy.c; then
+  ac_cv_prog_lex_root=lexyy
+else
+  as_fn_error $? "cannot find output from $LEX; giving up" "$LINENO" 5
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_lex_root" >&5
+$as_echo "$ac_cv_prog_lex_root" >&6; }
+LEX_OUTPUT_ROOT=$ac_cv_prog_lex_root
+
+if test -z "${LEXLIB+set}"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking lex library" >&5
+$as_echo_n "checking lex library... " >&6; }
+if ${ac_cv_lib_lex+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+    ac_save_LIBS=$LIBS
+    ac_cv_lib_lex='none needed'
+    for ac_lib in '' -lfl -ll; do
+      LIBS="$ac_lib $ac_save_LIBS"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+`cat $LEX_OUTPUT_ROOT.c`
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_lex=$ac_lib
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      test "$ac_cv_lib_lex" != 'none needed' && break
+    done
+    LIBS=$ac_save_LIBS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_lex" >&5
+$as_echo "$ac_cv_lib_lex" >&6; }
+  test "$ac_cv_lib_lex" != 'none needed' && LEXLIB=$ac_cv_lib_lex
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether yytext is a pointer" >&5
+$as_echo_n "checking whether yytext is a pointer... " >&6; }
+if ${ac_cv_prog_lex_yytext_pointer+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # POSIX says lex can declare yytext either as a pointer or an array; the
+# default is implementation-dependent.  Figure out which it is, since
+# not all implementations provide the %pointer and %array declarations.
+ac_cv_prog_lex_yytext_pointer=no
+ac_save_LIBS=$LIBS
+LIBS="$LEXLIB $ac_save_LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  #define YYTEXT_POINTER 1
+`cat $LEX_OUTPUT_ROOT.c`
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_prog_lex_yytext_pointer=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_save_LIBS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_lex_yytext_pointer" >&5
+$as_echo "$ac_cv_prog_lex_yytext_pointer" >&6; }
+if test $ac_cv_prog_lex_yytext_pointer = yes; then
+
+$as_echo "#define YYTEXT_POINTER 1" >>confdefs.h
+
+fi
+rm -f conftest.l $LEX_OUTPUT_ROOT.c
+
+fi
+if test Z"$LEX" != Zflex; then
+cat <<EOF
+*******************************************************************
+You do not seem to have flex. While flex is not required to build
+libconfig, you may need it to regenerate the lexer if you change
+the scanner.l file. Flex 2.5.33 or newer is recommended.
+*******************************************************************
+EOF
+fi
+
+for ac_prog in 'bison -y' byacc
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_YACC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$YACC"; then
+  ac_cv_prog_YACC="$YACC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_YACC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+YACC=$ac_cv_prog_YACC
+if test -n "$YACC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $YACC" >&5
+$as_echo "$YACC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$YACC" && break
+done
+test -n "$YACC" || YACC="yacc"
+
+if test Z"$YACC" != "Zbison -y"; then
+cat <<EOF
+*******************************************************************
+You do not seem to have bison. While bison is not required to build
+libconfig, you may need it to regenerate the parser if you change
+the grammar.y file.
+*******************************************************************
+EOF
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for compiler switch to enable full C/C++ warnings" >&5
+$as_echo_n "checking for compiler switch to enable full C/C++ warnings... " >&6; };
+
+
+case "${CC}" in
+
+gcc)
+	warn_c_sw="-Wall -Wshadow -Wextra -Wdeclaration-after-statement -Wno-unused-parameter";;
+*)
+	warn_c_sw="";;
+esac
+
+if test -n "${warn_c_sw}";
+then
+	CFLAGS="${CFLAGS} ${warn_c_sw}";
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${warn_c_sw}" >&5
+$as_echo "${warn_c_sw}" >&6; }
+else
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: (cannot determine)" >&5
+$as_echo "(cannot determine)" >&6; }
+fi;
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+for ac_header in unistd.h stdint.h xlocale.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5
+$as_echo_n "checking for an ANSI C-conforming const... " >&6; }
+if ${ac_cv_c_const+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+#ifndef __cplusplus
+  /* Ultrix mips cc rejects this sort of thing.  */
+  typedef int charset[2];
+  const charset cs = { 0, 0 };
+  /* SunOS 4.1.1 cc rejects this.  */
+  char const *const *pcpcc;
+  char **ppc;
+  /* NEC SVR4.0.2 mips cc rejects this.  */
+  struct point {int x, y;};
+  static struct point const zero = {0,0};
+  /* AIX XL C 1.02.0.0 rejects this.
+     It does not let you subtract one const X* pointer from another in
+     an arm of an if-expression whose if-part is not a constant
+     expression */
+  const char *g = "string";
+  pcpcc = &g + (g ? g-g : 0);
+  /* HPUX 7.0 cc rejects these. */
+  ++pcpcc;
+  ppc = (char**) pcpcc;
+  pcpcc = (char const *const *) ppc;
+  { /* SCO 3.2v4 cc rejects this sort of thing.  */
+    char tx;
+    char *t = &tx;
+    char const *s = 0 ? (char *) 0 : (char const *) 0;
+
+    *t++ = 0;
+    if (s) return 0;
+  }
+  { /* Someone thinks the Sun supposedly-ANSI compiler will reject this.  */
+    int x[] = {25, 17};
+    const int *foo = &x[0];
+    ++foo;
+  }
+  { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
+    typedef const int *iptr;
+    iptr p = 0;
+    ++p;
+  }
+  { /* AIX XL C 1.02.0.0 rejects this sort of thing, saying
+       "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
+    struct s { int j; const int *ap[3]; } bx;
+    struct s *b = &bx; b->j = 5;
+  }
+  { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
+    const int foo = 10;
+    if (!foo) return 0;
+  }
+  return !cs[0] && !zero.x;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_c_const=yes
+else
+  ac_cv_c_const=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5
+$as_echo "$ac_cv_c_const" >&6; }
+if test $ac_cv_c_const = no; then
+
+$as_echo "#define const /**/" >>confdefs.h
+
+fi
+
+
+
+for ac_func in newlocale uselocale freelocale
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+
+ac_config_files="$ac_config_files doc/Makefile gen/Makefile"
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+
+  (set) 2>&1 |
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
+      sed -n \
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;; #(
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+) |
+  sed '
+     /^ac_cv_env_/b end
+     t clear
+     :clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+  if test -w "$cache_file"; then
+    if test "x$cache_file" != "x/dev/null"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+$as_echo "$as_me: updating cache $cache_file" >&6;}
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+  fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+# Transform confdefs.h into DEFS.
+# Protect against shell expansion while executing Makefile rules.
+# Protect against Makefile macro expansion.
+#
+# If the first sed substitution is executed (which looks for macros that
+# take arguments), then branch to the quote section.  Otherwise,
+# look for a macro that doesn't take arguments.
+ac_script='
+:mline
+/\\$/{
+ N
+ s,\\\n,,
+ b mline
+}
+t clear
+:clear
+s/^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 (][^	 (]*([^)]*)\)[	 ]*\(.*\)/-D\1=\2/g
+t quote
+s/^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 ][^	 ]*\)[	 ]*\(.*\)/-D\1=\2/g
+t quote
+b any
+:quote
+s/[	 `~#$^&*(){}\\|;'\''"<>?]/\\&/g
+s/\[/\\&/g
+s/\]/\\&/g
+s/\$/$$/g
+H
+:any
+${
+	g
+	s/^\n//
+	s/\n/ /g
+	p
+}
+'
+DEFS=`sed -n "$ac_script" confdefs.h`
+
+
+ac_libobjs=
+ac_ltlibobjs=
+U=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+  # 1. Remove the extension, and $U if already installed.
+  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
+  #    will be set to the directory where LIBOBJS objects are built.
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+
+: "${CONFIG_STATUS=./config.status}"
+ac_write_fail=0
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.
+ac_log="
+This file was extended by libconfig $as_me 1.4.9, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
+_ACEOF
+
+case $ac_config_files in *"
+"*) set x $ac_config_files; shift; ac_config_files=$*;;
+esac
+
+
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+# Files that config.status was made for.
+config_files="$ac_config_files"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ac_cs_usage="\
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
+
+Usage: $0 [OPTION]... [TAG]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number and configuration settings, then exit
+      --config     print configuration, then exit
+  -q, --quiet, --silent
+                   do not print progress messages
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+      --file=FILE[:TEMPLATE]
+                   instantiate the configuration file FILE
+
+Configuration files:
+$config_files
+
+Report bugs to <hyperrealm@gmail.com>.
+libconfig home page: <http://www.hyperrealm.com/main.php?s=libconfig>."
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_version="\\
+libconfig config.status 1.4.9
+configured by $0, generated by GNU Autoconf 2.69,
+  with options \\"\$ac_cs_config\\"
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+test -n "\$AWK" || AWK=awk
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# The default lists apply if the user does not specify any file.
+ac_need_defaults=:
+while test $# != 0
+do
+  case $1 in
+  --*=?*)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
+    ac_shift=:
+    ;;
+  --*=)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=
+    ac_shift=:
+    ;;
+  *)
+    ac_option=$1
+    ac_optarg=$2
+    ac_shift=shift
+    ;;
+  esac
+
+  case $ac_option in
+  # Handling of the options.
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    ac_cs_recheck=: ;;
+  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+    $as_echo "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    $as_echo "$ac_cs_config"; exit ;;
+  --debug | --debu | --deb | --de | --d | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    '') as_fn_error $? "missing file argument" ;;
+    esac
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --he | --h |  --help | --hel | -h )
+    $as_echo "$ac_cs_usage"; exit ;;
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil | --si | --s)
+    ac_cs_silent=: ;;
+
+  # This is an error.
+  -*) as_fn_error $? "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
+
+  *) as_fn_append ac_config_targets " $1"
+     ac_need_defaults=false ;;
+
+  esac
+  shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+  exec 6>/dev/null
+  ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+if \$ac_cs_recheck; then
+  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  shift
+  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  CONFIG_SHELL='$SHELL'
+  export CONFIG_SHELL
+  exec "\$@"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+  $as_echo "$ac_log"
+} >&5
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+
+# Handling of arguments.
+for ac_config_target in $ac_config_targets
+do
+  case $ac_config_target in
+    "doc/Makefile") CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;;
+    "gen/Makefile") CONFIG_FILES="$CONFIG_FILES gen/Makefile" ;;
+
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  esac
+done
+
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+fi
+
+# Have a temporary directory for convenience.  Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+  tmp= ac_tmp=
+  trap 'exit_status=$?
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
+' 0
+  trap 'as_fn_exit 1' 1 2 13 15
+}
+# Create a (secure) tmp directory for tmp files.
+
+{
+  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+  test -d "$tmp"
+}  ||
+{
+  tmp=./conf$$-$RANDOM
+  (umask 077 && mkdir "$tmp")
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
+
+# Set up the scripts for CONFIG_FILES section.
+# No need to generate them if there are no CONFIG_FILES.
+# This happens for instance with `./config.status config.h'.
+if test -n "$CONFIG_FILES"; then
+
+
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
+ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
+if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
+  ac_cs_awk_cr='\\r'
+else
+  ac_cs_awk_cr=$ac_cr
+fi
+
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
+_ACEOF
+
+
+{
+  echo "cat >conf$$subs.awk <<_ACEOF" &&
+  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
+  echo "_ACEOF"
+} >conf$$subs.sh ||
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+  . ./conf$$subs.sh ||
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  if test $ac_delim_n = $ac_delim_num; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+rm -f conf$$subs.sh
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
+_ACEOF
+sed -n '
+h
+s/^/S["/; s/!.*/"]=/
+p
+g
+s/^[^!]*!//
+:repl
+t repl
+s/'"$ac_delim"'$//
+t delim
+:nl
+h
+s/\(.\{148\}\)..*/\1/
+t more1
+s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
+p
+n
+b repl
+:more1
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t nl
+:delim
+h
+s/\(.\{148\}\)..*/\1/
+t more2
+s/["\\]/\\&/g; s/^/"/; s/$/"/
+p
+b
+:more2
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t delim
+' <conf$$subs.awk | sed '
+/^[^""]/{
+  N
+  s/\n//
+}
+' >>$CONFIG_STATUS || ac_write_fail=1
+rm -f conf$$subs.awk
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACAWK
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
+  for (key in S) S_is_set[key] = 1
+  FS = ""
+
+}
+{
+  line = $ 0
+  nfields = split(line, field, "@")
+  substed = 0
+  len = length(field[1])
+  for (i = 2; i < nfields; i++) {
+    key = field[i]
+    keylen = length(key)
+    if (S_is_set[key]) {
+      value = S[key]
+      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
+      len += length(value) + length(field[++i])
+      substed = 1
+    } else
+      len += 1 + keylen
+  }
+
+  print line
+}
+
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
+  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
+else
+  cat
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
+_ACEOF
+
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
+h
+s///
+s/^/:/
+s/[	 ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
+s/:*$//
+x
+s/\(=[	 ]*\).*/\1/
+G
+s/\n//
+s/^[^=]*=[	 ]*$//
+}'
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+fi # test -n "$CONFIG_FILES"
+
+
+eval set X "  :F $CONFIG_FILES      "
+shift
+for ac_tag
+do
+  case $ac_tag in
+  :[FHLC]) ac_mode=$ac_tag; continue;;
+  esac
+  case $ac_mode$ac_tag in
+  :[FHL]*:*);;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :[FH]-) ac_tag=-:-;;
+  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
+  esac
+  ac_save_IFS=$IFS
+  IFS=:
+  set x $ac_tag
+  IFS=$ac_save_IFS
+  shift
+  ac_file=$1
+  shift
+
+  case $ac_mode in
+  :L) ac_source=$1;;
+  :[FH])
+    ac_file_inputs=
+    for ac_f
+    do
+      case $ac_f in
+      -) ac_f="$ac_tmp/stdin";;
+      *) # Look for the file first in the build tree, then in the source tree
+	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
+	 # because $ac_f cannot contain `:'.
+	 test -f "$ac_f" ||
+	   case $ac_f in
+	   [\\/$]*) false;;
+	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+	   esac ||
+	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+      esac
+      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      as_fn_append ac_file_inputs " '$ac_f'"
+    done
+
+    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # use $as_me), people would be surprised to read:
+    #    /* config.h.  Generated by config.status.  */
+    configure_input='Generated from '`
+	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	`' by configure.'
+    if test x"$ac_file" != x-; then
+      configure_input="$ac_file.  $configure_input"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+$as_echo "$as_me: creating $ac_file" >&6;}
+    fi
+    # Neutralize special characters interpreted by sed in replacement strings.
+    case $configure_input in #(
+    *\&* | *\|* | *\\* )
+       ac_sed_conf_input=`$as_echo "$configure_input" |
+       sed 's/[\\\\&|]/\\\\&/g'`;; #(
+    *) ac_sed_conf_input=$configure_input;;
+    esac
+
+    case $ac_tag in
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
+    esac
+    ;;
+  esac
+
+  ac_dir=`$as_dirname -- "$ac_file" ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$ac_file" : 'X\(//\)[^/]' \| \
+	 X"$ac_file" : 'X\(//\)$' \| \
+	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  as_dir="$ac_dir"; as_fn_mkdir_p
+  ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+
+  case $ac_mode in
+  :F)
+  #
+  # CONFIG_FILE
+  #
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+ac_sed_dataroot='
+/datarootdir/ {
+  p
+  q
+}
+/@datadir@/p
+/@docdir@/p
+/@infodir@/p
+/@localedir@/p
+/@mandir@/p'
+case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  ac_datarootdir_hack='
+  s&@datadir@&$datadir&g
+  s&@docdir@&$docdir&g
+  s&@infodir@&$infodir&g
+  s&@localedir@&$localedir&g
+  s&@mandir@&$mandir&g
+  s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
+_ACEOF
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_sed_extra="$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s|@configure_input@|$ac_sed_conf_input|;t t
+s&@top_builddir@&$ac_top_builddir_sub&;t t
+s&@top_build_prefix@&$ac_top_build_prefix&;t t
+s&@srcdir@&$ac_srcdir&;t t
+s&@abs_srcdir@&$ac_abs_srcdir&;t t
+s&@top_srcdir@&$ac_top_srcdir&;t t
+s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
+s&@builddir@&$ac_builddir&;t t
+s&@abs_builddir@&$ac_abs_builddir&;t t
+s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+$ac_datarootdir_hack
+"
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+
+test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&5
+$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&2;}
+
+  rm -f "$ac_tmp/stdin"
+  case $ac_file in
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
+  esac \
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ ;;
+
+
+
+  esac
+
+done # for ac_tag
+
+
+as_fn_exit 0
+_ACEOF
+ac_clean_files=$ac_clean_files_save
+
+test $ac_write_fail = 0 ||
+  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  ac_config_status_args=
+  test "$silent" = yes &&
+    ac_config_status_args="$ac_config_status_args --quiet"
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || as_fn_exit 1
+fi
+if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+fi
+
diff --git a/3rdparty/libconfig/extra/configure.ac b/3rdparty/libconfig/extra/configure.ac
new file mode 100644
index 000000000..622abb3e2
--- /dev/null
+++ b/3rdparty/libconfig/extra/configure.ac
@@ -0,0 +1,79 @@
+dnl Process this file with autoconf to produce a configure script.
+
+AC_INIT(libconfig, 1.4.9, hyperrealm@gmail.com, libconfig,
+	[http://www.hyperrealm.com/main.php?s=libconfig])
+#AC_CANONICAL_TARGET
+
+AC_MSG_NOTICE([libconfig - made with pride in California])
+
+AC_PROG_MAKE_SET
+
+AC_DEFINE_UNQUOTED(TARGET, "${target}", [Configured target name.])
+
+# Enable GNU extensions.
+AC_GNU_SOURCE
+
+dnl Checks for programs.
+AC_PROG_CC
+
+AC_PROG_LEX
+if test Z"$LEX" != Zflex; then
+cat <<EOF
+*******************************************************************
+You do not seem to have flex. While flex is not required to build
+libconfig, you may need it to regenerate the lexer if you change
+the scanner.l file. Flex 2.5.33 or newer is recommended.
+*******************************************************************
+EOF
+fi
+
+AC_PROG_YACC
+if test Z"$YACC" != "Zbison -y"; then
+cat <<EOF
+*******************************************************************
+You do not seem to have bison. While bison is not required to build
+libconfig, you may need it to regenerate the parser if you change
+the grammar.y file.
+*******************************************************************
+EOF
+fi
+
+AC_MSG_CHECKING([for compiler switch to enable full C/C++ warnings]);
+
+dnl Checks for libraries
+
+dnl Enable warnings, if we can determine an appropriate switch...
+case "${CC}" in
+
+gcc)
+	warn_c_sw="-Wall -Wshadow -Wextra -Wdeclaration-after-statement -Wno-unused-parameter";;
+*)
+	warn_c_sw="";;
+esac
+
+if test -n "${warn_c_sw}";
+then
+	CFLAGS="${CFLAGS} ${warn_c_sw}";
+	AC_MSG_RESULT([${warn_c_sw}])
+else
+	AC_MSG_RESULT([(cannot determine)])
+fi;
+
+
+dnl Checks for header files.
+AC_HEADER_STDC
+AC_CHECK_HEADERS(unistd.h stdint.h xlocale.h)
+
+dnl Checks for typedefs, structures, and compiler characteristics.
+AC_C_CONST
+
+dnl Checks for functions
+
+AC_CHECK_FUNCS([newlocale uselocale freelocale])
+
+dnl Checks for library functions.
+
+AC_OUTPUT(
+	doc/Makefile
+	gen/Makefile
+	)
diff --git a/3rdparty/libconfig/extra/doc/LGPL.texi b/3rdparty/libconfig/extra/doc/LGPL.texi
new file mode 100644
index 000000000..e371ac0d0
--- /dev/null
+++ b/3rdparty/libconfig/extra/doc/LGPL.texi
@@ -0,0 +1,590 @@
+@c \input texinfo.tex    @c -*-texinfo-*-
+@c 
+@c %**start of header
+
+@c All text is ignored before the setfilename.
+@setfilename LGPL.info
+
+@center GNU LESSER GENERAL PUBLIC LICENSE
+@center Version 2.1, February 1999
+
+@sp 1
+
+Copyright @copyright{} 1991, 1999 Free Software Foundation, Inc.,
+59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+as the successor of the GNU Library Public License, version 2, hence the
+version number 2.1.]
+
+@sp 1
+@center Preamble
+@sp 1
+
+The licenses for most software are designed to take away your freedom to
+share and change it.  By contrast, the GNU General Public Licenses are
+intended to guarantee your freedom to share and change free software--to
+make sure the software is free for all its users.
+
+This license, the Lesser General Public License, applies to some
+specially designated software packages--typically libraries--of the Free
+Software Foundation and other authors who decide to use it.  You can use
+it too, but we suggest you first think carefully about whether this
+license or the ordinary General Public License is the better strategy to
+use in any particular case, based on the explanations below.
+
+When we speak of free software, we are referring to freedom of use, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish); that you receive source code or can get it if
+you want it; that you can change the software and use pieces of it in
+new free programs; and that you are informed that you can do these
+things.
+
+To protect your rights, we need to make restrictions that forbid
+distributors to deny you these rights or to ask you to surrender these
+rights.  These restrictions translate to certain responsibilities for
+you if you distribute copies of the library or if you modify it.
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+
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+THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
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+@sp 1
+@page
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+
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+Copyright (C) <year>  <name of author>
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+}
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+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
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+
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+@t{
+Yoyodyne, Inc., hereby disclaims all copyright interest in the
+library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+<signature of Ty Coon>, 1 April 1990
+Ty Coon, President of Vice
+}
+@end format
+
+That's all there is to it!
+
+@c @bye
diff --git a/3rdparty/libconfig/extra/doc/Makefile b/3rdparty/libconfig/extra/doc/Makefile
new file mode 100644
index 000000000..fd84597a6
--- /dev/null
+++ b/3rdparty/libconfig/extra/doc/Makefile
@@ -0,0 +1,18 @@
+HTMLS = libconfig.html
+TEXINFOS = libconfig.texi
+MAKEINFOHTML = $(MAKEINFO) --html
+MAKEINFO = makeinfo
+
+all: html
+
+.SUFFIXES: .html .texi
+
+libconfig.html: $(TEXINFOS)
+
+clean:
+	@-test -z "$(HTMLS)" || rm -rf libconfig.html
+
+.PHONY: all clean html
+
+html: $(HTMLS)
+	$(MAKEINFOHTML) --no-split $(TEXINFOS)
diff --git a/3rdparty/libconfig/extra/doc/Makefile.in b/3rdparty/libconfig/extra/doc/Makefile.in
new file mode 100644
index 000000000..fd84597a6
--- /dev/null
+++ b/3rdparty/libconfig/extra/doc/Makefile.in
@@ -0,0 +1,18 @@
+HTMLS = libconfig.html
+TEXINFOS = libconfig.texi
+MAKEINFOHTML = $(MAKEINFO) --html
+MAKEINFO = makeinfo
+
+all: html
+
+.SUFFIXES: .html .texi
+
+libconfig.html: $(TEXINFOS)
+
+clean:
+	@-test -z "$(HTMLS)" || rm -rf libconfig.html
+
+.PHONY: all clean html
+
+html: $(HTMLS)
+	$(MAKEINFOHTML) --no-split $(TEXINFOS)
diff --git a/3rdparty/libconfig/extra/doc/libconfig.texi b/3rdparty/libconfig/extra/doc/libconfig.texi
new file mode 100644
index 000000000..52dca20fc
--- /dev/null
+++ b/3rdparty/libconfig/extra/doc/libconfig.texi
@@ -0,0 +1,1910 @@
+\input texinfo.tex    @c -*-texinfo-*-
+@c
+@c %**start of header
+
+@c All text is ignored before the setfilename.
+@setfilename libconfig.info
+@settitle libconfig
+
+@set edition 1.4.9
+@set update-date 28 September 2012
+@set subtitle-text A Library For Processing Structured Configuration Files
+@set author-text Mark A.@: Lindner
+
+@comment %**end of header
+
+@dircategory Software libraries
+@direntry
+* libconfig: (libconfig).       A Library For Processing Structured Configuration Files
+@end direntry
+
+
+@tex
+\global\emergencystretch = .3\hsize
+@end tex
+
+@setchapternewpage odd
+
+@titlepage
+
+@title libconfig
+@subtitle @value{subtitle-text}
+@subtitle Version @value{edition}
+@subtitle @value{update-date}
+
+@author @value{author-text}
+
+@page
+@vskip 0pt plus 1filll
+Copyright @copyright{} 2005-2012  Mark A Lindner
+
+Permission is granted to make and distribute verbatim copies of
+this manual provided the copyright notice and this permission notice
+are preserved on all copies.
+
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided that the entire
+resulting derived work is distributed under the terms of a permission
+notice identical to this one.
+
+@end titlepage
+
+@c Give the HTML output a title page that somewhat resembles the printed one
+@ifhtml
+@html
+<hr noshade size=6 color="black">
+<div align=right>@value{subtitle-text}<br>
+Version @value{edition}<br>
+@value{update-date}</div>
+<br><br><br><br>
+<font size=+1>@value{author-text}</font>
+<hr size=3 noshade color="black">
+<br><br>
+@end html
+@end ifhtml
+
+@contents
+
+@ifnottex
+@node Top
+@comment  node-name,  next,  previous,  up
+@top libconfig
+@end ifnottex
+
+@menu
+* Introduction::
+* Configuration Files::
+* The C API::
+* The C++ API::
+* Example Programs::
+* Configuration File Grammar::
+* License::
+* Function Index::
+* Type Index::
+* Concept Index::
+@end menu
+
+@node Introduction, Configuration Files, Top, Top
+@comment  node-name,  next,  previous,  up
+@menu
+* Why Another Configuration File Library?::
+* Using the Library from a C Program::
+* Using the Library from a C++ Program::
+* Multithreading Issues::
+* Internationalization Issues::
+* Compiling Using pkg-config::
+* Version Test Macros::
+@end menu
+@chapter Introduction
+
+@i{Libconfig} is a library for reading, manipulating, and writing
+structured configuration files. The library features a fully
+reentrant parser and includes bindings for both the C and C++
+programming languages.
+
+The library runs on modern POSIX-compilant systems, such as Linux,
+Solaris, and Mac OS X (Darwin), as well as on Microsoft Windows
+2000/XP and later (with either Microsoft Visual Studio 2005 or later,
+or the GNU toolchain via the MinGW environment).
+
+@node Why Another Configuration File Library?, Using the Library from a C Program, , Introduction
+@comment  node-name,  next,  previous,  up
+@section Why Another Configuration File Library?
+
+There are several open-source configuration file libraries available
+as of this writing. This library was written because each of those
+libraries falls short in one or more ways. The main features of
+@i{libconfig} that set it apart from the other libraries are:
+
+@itemize @bullet
+
+@item A fully reentrant parser. Independent configurations can be parsed in concurrent threads at the same time.
+
+@item Both C @i{and} C++ bindings, as well as hooks to allow for the creation of wrappers in other languages.
+
+@item A simple, structured configuration file format that is more
+readable and compact than XML and more flexible than the obsolete but
+prevalent Windows ``INI'' file format.
+
+@item A low-footprint implementation (just 37K for the C library and 76K for
+the C++ library) that is suitable for memory-constrained systems.
+
+@item Proper documentation.
+
+@end itemize
+
+@node Using the Library from a C Program, Using the Library from a C++ Program, Why Another Configuration File Library?, Introduction
+@comment  node-name,  next,  previous,  up
+@section Using the Library from a C Program
+
+To use the library from C code, include the following preprocessor
+directive in your source files:
+
+@sp 1
+@smallexample
+#include <libconfig.h>
+@end smallexample
+@sp 1
+
+To link with the library, specify @samp{-lconfig} as an argument to the
+linker.
+
+@node Using the Library from a C++ Program, Multithreading Issues, Using the Library from a C Program, Introduction
+@comment  node-name,  next,  previous,  up
+@section Using the Library from a C++ Program
+
+To use the library from C++, include the following preprocessor
+directive in your source files:
+
+@sp 1
+@smallexample
+#include <libconfig.h++>
+@end smallexample
+@sp 1
+
+Or, alternatively:
+
+@sp 1
+@smallexample
+#include <libconfig.hh>
+@end smallexample
+@sp 1
+@page
+The C++ API classes are defined in the namespace @samp{libconfig}, hence the
+following statement may optionally be used:
+
+@sp 1
+@smallexample
+using namespace libconfig;
+@end smallexample
+@sp 1
+
+To link with the library, specify @samp{-lconfig++} as an argument to
+the linker.
+
+@node Multithreading Issues, Internationalization Issues, Using the Library from a C++ Program, Introduction
+@comment  node-name,  next,  previous,  up
+@section Multithreading Issues
+
+@i{Libconfig} is fully @dfn{reentrant}; the functions in the library
+do not make use of global variables and do not maintain state between
+successive calls. Therefore two independent configurations may be safely
+manipulated concurrently by two distinct threads.
+
+@i{Libconfig} is not @dfn{thread-safe}. The library is not aware of
+the presence of threads and knows nothing about the host system's
+threading model. Therefore, if an instance of a configuration is to be
+accessed from multiple threads, it must be suitably protected by
+synchronization mechanisms like read-write locks or mutexes; the
+standard rules for safe multithreaded access to shared data must be
+observed.
+
+@i{Libconfig} is not @dfn{async-safe}. Calls should not be made into
+the library from signal handlers, because some of the C library
+routines that it uses may not be async-safe.
+
+@i{Libconfig} is not guaranteed to be @dfn{cancel-safe}. Since it is
+not aware of the host system's threading model, the library does not
+contain any thread cancellation points. In most cases this will not be
+an issue for multithreaded programs. However, be aware that some of
+the routines in the library (namely those that read/write
+configurations from/to files or streams) perform I/O using C library
+routines which may potentially block; whether or not these C library
+routines are cancel-safe depends on the host system.
+
+@node Internationalization Issues, Compiling Using pkg-config, Multithreading Issues, Introduction
+@comment  node-name,  next,  previous,  up
+@section Internationalization Issues
+
+@cindex Unicode
+@cindex UTF-8
+@i{Libconfig} does not natively support Unicode configuration files,
+but string values may contain Unicode text encoded in UTF-8; such
+strings will be treated as ordinary 8-bit ASCII text by the
+library. It is the responsibility of the calling program to perform
+the necessary conversions to/from wide (@t{wchar_t}) strings using the
+wide string conversion functions such as @t{mbsrtowcs()} and
+@t{wcsrtombs()} or the @t{iconv()} function of the @i{libiconv}
+library.
+
+@cindex locale
+The textual representation of a floating point value varies by
+locale. However, the @i{libconfig} grammar specifies that
+floating point values are represented using a period (`.') as the
+radix symbol; this is consistent with the grammar of most programming
+languages. When a configuration is read in or written out,
+@i{libconfig} temporarily changes the @t{LC_NUMERIC} category of the
+locale of the calling thread to the ``C'' locale to ensure consistent
+handling of floating point values regardless of the locale(s) in use
+by the calling program.
+
+Note that the MinGW environment does not (as of this writing) provide
+functions for changing the locale of the calling thread. Therefore,
+when using @i{libconfig} in that environment, the calling program is
+responsible for changing the @t{LC_NUMERIC} category of the locale to
+the "C" locale before reading or writing a configuration.
+
+@node Compiling Using pkg-config, Version Test Macros, Internationalization Issues, Introduction
+@comment  node-name,  next,  previous,  up
+@section Compiling Using pkg-config
+
+On UNIX systems you can use the @i{pkg-config} utility (version 0.20
+or later) to automatically select the appropriate compiler and linker
+switches for @i{libconfig}. Ensure that the environment variable
+@code{PKG_CONFIG_PATH} contains the absolute path to the
+@file{lib/pkgconfig} subdirectory of the @i{libconfig} installation. Then,
+you can compile and link C programs with @i{libconfig} as follows:
+
+@smallexample
+gcc `pkg-config --cflags libconfig` myprogram.c -o myprogram \
+    `pkg-config --libs libconfig`
+@end smallexample
+@sp 1
+
+And similarly, for C++ programs:
+
+@smallexample
+g++ `pkg-config --cflags libconfig++` myprogram.cpp -o myprogram \
+    `pkg-config --libs libconfig++`
+@end smallexample
+
+@sp 1
+Note the backticks in the above examples.
+
+When using @b{autoconf}, the @code{PKG_CHECK_MODULES} m4 macro may be used to check for the presence of a given version of @i{libconfig}, and set the appropriate Makefile variables automatically. For example:
+
+@smallexample
+PKG_CHECK_MODULES([LIBCONFIGXX], [libconfig++ >= 1.4],,
+  AC_MSG_ERROR([libconfig++ 1.4 or newer not found.])
+)
+@end smallexample
+
+In the above example, if @i{libconfig++} version 1.4 or newer is found,
+the Makefile variables @code{LIBCONFIGXX_LIBS} and @code{LIBCONFIGXX_CFLAGS} will be
+set to the appropriate compiler and linker flags for compiling with
+@i{libconfig}, and if it is not found, the configure script will abort
+with an error to that effect.
+
+@node Version Test Macros, , Compiling Using pkg-config, Introduction
+@comment  node-name,  next,  previous,  up
+@section Version Test Macros
+
+The @file{libconfig.h} header declares the following macros:
+
+@defmac LIBCONFIG_VER_MAJOR
+@defmacx LIBCONFIG_VER_MINOR
+@defmacx LIBCONFIG_VER_REVISION
+
+These macros represent the major version, minor version, and revision
+of the @i{libconfig} library. For example, in @i{libconfig} 1.4 these
+are defined as @samp{1}, @samp{4}, and @samp{0}, respectively. These
+macros can be used in preprocessor directives to determine which
+@i{libconfig} features and/or APIs are present. For example:
+
+@smallexample
+#if (((LIBCONFIG_VER_MAJOR == 1) && (LIBCONFIG_VER_MINOR >= 4)) \
+     || (LIBCONFIG_VER_MAJOR > 1))
+  /* use features present in libconfig 1.4 and later */
+#endif
+@end smallexample
+
+These macros were introduced in @i{libconfig} 1.4.
+
+@end defmac
+
+Similarly, the @file{libconfig.h++} header declares the following macros:
+
+@defmac LIBCONFIGXX_VER_MAJOR
+@defmacx LIBCONFIGXX_VER_MINOR
+@defmacx LIBCONFIGXX_VER_REVISION
+
+These macros represent the major version, minor version, and revision
+of the @i{libconfig++} library.
+
+@end defmac
+
+@node Configuration Files, The C API, Introduction, Top
+@comment  node-name,  next,  previous,  up
+@menu
+* Settings::
+* Groups::
+* Arrays::
+* Lists::
+* Integer Values::
+* 64-bit Integer Values::
+* Floating Point Values::
+* Boolean Values::
+* String Values::
+* Comments::
+* Include Directives::
+@end menu
+@chapter Configuration Files
+
+@i{Libconfig} supports structured, hierarchical configurations. These
+configurations can be read from and written to files and manipulated
+in memory.
+
+@cindex setting
+@cindex value
+@cindex scalar value
+@cindex array
+@cindex group
+@cindex list
+@cindex configuration
+A @dfn{configuration} consists of a group of @dfn{settings}, which
+associate names with values. A @dfn{value} can be one of the
+following:
+
+@itemize @bullet
+@item A @dfn{scalar value}: integer, 64-bit integer, floating-point number, boolean,
+or string
+@item An @dfn{array}, which is a sequence of scalar values, all of which must have the same type
+@item A @dfn{group}, which is a collection of settings
+@item A @dfn{list}, which is a sequence of values of any type, including other lists
+@end itemize
+
+Consider the following configuration file for a hypothetical GUI
+application, which illustrates all of the elements of the configuration
+file grammar.
+
+@sp 1
+@cartouche
+@smallexample
+# Example application configuration file
+
+version = "1.0";
+
+application:
+@{
+  window:
+  @{
+    title = "My Application";
+    size = @{ w = 640; h = 480; @};
+    pos = @{ x = 350; y = 250; @};
+  @};
+
+  list = ( ( "abc", 123, true ), 1.234, ( /* an empty list */) );
+
+  books = ( @{ title  = "Treasure Island";
+              author = "Robert Louis Stevenson";
+              price  = 29.95;
+              qty    = 5; @},
+            @{ title  = "Snow Crash";
+              author = "Neal Stephenson";
+              price  = 9.99;
+              qty    = 8; @} );
+
+  misc:
+  @{
+    pi = 3.141592654;
+    bigint = 9223372036854775807L;
+    columns = [ "Last Name", "First Name", "MI" ];
+    bitmask = 0x1FC3;
+  @};
+@};
+@end smallexample
+@end cartouche
+@sp 1
+
+@cindex path
+Settings can be uniquely identified within the configuration by a
+@dfn{path}. The path is a dot-separated sequence of names, beginning
+at a top-level group and ending at the setting itself. Each name in
+the path is the name of a setting; if the setting has no name because
+it is an element in a list or array, an integer index in square
+brackets can be used as the name.
+
+For example, in our hypothetical configuration file, the path to the
+@code{x} setting is @code{application.window.pos.x}; the path to the
+@code{version} setting is simply @code{version}; and the path to the
+@code{title} setting of the second book in the @code{books} list is
+@code{application.books.[1].title}.
+
+The datatype of a value is determined from the format of the value
+itself. If the value is enclosed in double quotes, it is treated as a
+string. If it looks like an integer or floating point number, it is
+treated as such. If it is one of the values @code{TRUE}, @code{true},
+@code{FALSE}, or @code{false} (or any other mixed-case version of
+those tokens, e.g., @code{True} or @code{FaLsE}), it is treated as a
+boolean. If it consists of a comma-separated list of values enclosed
+in square brackets, it is treated as an array. And if it consists of a
+comma-separated list of values enclosed in parentheses, it is treated
+as a list. Any value which does not meet any of these criteria is
+considered invalid and results in a parse error.
+
+All names are case-sensitive. They may consist only of alphanumeric
+characters, dashes (@samp{-}), underscores (@samp{_}), and asterisks
+(@samp{*}), and must begin with a letter or asterisk. No other
+characters are allowed.
+
+In C and C++, integer, 64-bit integer, floating point, and string
+values are mapped to the types @code{int}, @code{long long},
+@code{double}, and @code{const char *}, respectively. The boolean type
+is mapped to @code{int} in C and @code{bool} in C++.
+
+The following sections describe the elements of the configuration file
+grammar in additional detail.
+
+@node Settings, Groups, , Configuration Files
+@comment  node-name,  next,  previous,  up
+@section Settings
+
+A setting has the form:
+
+@i{name} @b{=} @i{value} @b{;}
+
+or:
+
+@i{name} @b{:} @i{value} @b{;}
+
+The trailing semicolon is optional. Whitespace is not significant.
+
+The value may be a scalar value, an array, a group, or a list.
+
+@node Groups, Arrays, Settings, Configuration Files
+@comment  node-name,  next,  previous,  up
+@section Groups
+
+A group has the form:
+
+@b{@{}
+   @i{settings ...}
+@b{@}}
+
+Groups can contain any number of settings, but each setting must have
+a unique name within the group.
+
+@node Arrays, Lists, Groups, Configuration Files
+@comment  node-name,  next,  previous,  up
+@section Arrays
+
+An array has the form:
+
+@b{[} @i{value}@b{,} @i{value ...} @b{]}
+
+An array may have zero or more elements, but the elements must all be
+scalar values of the same type.
+
+@node Lists, Integer Values, Arrays, Configuration Files
+@comment  node-name,  next,  previous,  up
+@section Lists
+
+A list has the form:
+
+@b{(} @i{value}@b{,} @i{value ...} @b{)}
+
+A list may have zero or more elements, each of which can be a scalar
+value, an array, a group, or another list.
+
+@node Integer Values, 64-bit Integer Values, Lists, Configuration Files
+@comment  node-name,  next,  previous,  up
+@section Integer Values
+
+Integers can be represented in one of two ways: as a series of one or
+more decimal digits (@samp{0} - @samp{9}), with an optional leading
+sign character (@samp{+} or @samp{-}); or as a hexadecimal value
+consisting of the characters @samp{0x} followed by a series of one or
+more hexadecimal digits (@samp{0} - @samp{9}, @samp{A} - @samp{F},
+@samp{a} - @samp{f}).
+
+@node 64-bit Integer Values, Floating Point Values, Integer Values, Configuration Files
+@comment  node-name,  next,  previous,  up
+@section 64-bit Integer Values
+
+Long long (64-bit) integers are represented identically to integers,
+except that an 'L' character is appended to indicate a 64-bit
+value. For example, @samp{0L} indicates a 64-bit integer value 0.
+
+@node Floating Point Values, Boolean Values, 64-bit Integer Values, Configuration Files
+@comment  node-name,  next,  previous,  up
+@section Floating Point Values
+
+Floating point values consist of a series of one or more digits, one
+decimal point, an optional leading sign character (@samp{+} or
+@samp{-}), and an optional exponent. An exponent consists of the
+letter @samp{E} or @samp{e}, an optional sign character, and a series
+of one or more digits.
+
+@node Boolean Values, String Values, Floating Point Values, Configuration Files
+@comment  node-name,  next,  previous,  up
+@section Boolean Values
+
+Boolean values may have one of the following values: @samp{true},
+@samp{false}, or any mixed-case variation thereof.
+
+@node String Values, Comments, Boolean Values, Configuration Files
+@comment  node-name,  next,  previous,  up
+@section String Values
+
+@cindex escape sequence
+String values consist of arbitrary text delimited by double
+quotes. Literal double quotes can be escaped by preceding them with a
+backslash: @samp{\"}. The escape sequences @samp{\\}, @samp{\f},
+@samp{\n}, @samp{\r}, and @samp{\t} are also recognized, and have the
+usual meaning.
+
+In addition, the @samp{\x} escape sequence is supported; this sequence
+must be followed by @i{exactly two} hexadecimal digits, which represent an
+8-bit ASCII value. For example, @samp{\xFF} represents the character
+with ASCII code 0xFF.
+
+No other escape sequences are currently supported.
+
+Adjacent strings are automatically concatenated, as in C/C++ source
+code. This is useful for formatting very long strings as sequences of
+shorter strings. For example, the following constructs are equivalent:
+
+@itemize @bullet
+@item
+@code{"The quick brown fox jumped over the lazy dog."}
+
+@item
+@code{"The quick brown fox"} @*
+@code{" jumped over the lazy dog."}
+
+@item
+@code{"The quick" /* comment */ " brown fox " // another comment} @*
+@code{"jumped over the lazy dog."}
+
+@end itemize
+@page
+@node Comments, Include Directives, String Values, Configuration Files
+@comment  node-name,  next,  previous,  up
+@section Comments
+
+@cindex comment
+Three types of comments are allowed within a configuration:
+
+@itemize @bullet
+
+@item Script-style comments. All text beginning with a @samp{#} character
+to the end of the line is ignored.
+
+@item C-style comments. All text, including line breaks, between a starting
+@samp{/*} sequence and an ending @samp{*/} sequence is ignored.
+
+@item C++-style comments. All text beginning with a @samp{//} sequence to the
+end of the line is ignored.
+
+@end itemize
+
+As expected, comment delimiters appearing within quoted strings are
+treated as literal text.
+
+Comments are ignored when the configuration is read in, so they are
+not treated as part of the configuration. Therefore if the
+configuration is written back out to a stream, any comments that were
+present in the original configuration will be lost.
+
+@node Include Directives, , Comments, Configuration Files
+@comment  node-name,  next,  previous,  up
+@section Include Directives
+
+@cindex include directive
+A configuration file may ``include'' the contents of another file
+using an @i{include directive}. This directive has the effect of
+inlining the contents of the named file at the point of inclusion.
+
+An include directive must appear on its own line in the input. It has
+the form:
+
+@b{@@include "}@i{filename}@b{"}
+
+Any backslashes or double quotes in the filename must be escaped as
+@samp{\\} and @samp{\"}, respectively.
+
+For example, consider the following two configuration files:
+
+@cartouche
+@smallexample
+# file: quote.cfg
+quote = "Criticism may not be agreeable, but it is necessary."
+        " It fulfils the same function as pain in the human"
+        " body. It calls attention to an unhealthy state of"
+        " things.\n"
+        "\t--Winston Churchill";
+@end smallexample
+@end cartouche
+
+@cartouche
+@smallexample
+# file: test.cfg
+info: @{
+  name = "Winston Churchill";
+  @@include "quote.cfg"
+  country = "UK";
+@};
+@end smallexample
+@end cartouche
+
+Include files may be nested to a maximum of 10 levels; exceeding this
+limit results in a parse error.
+
+Like comments, include directives are not part of the configuration
+file syntax. They are processed before the configuration itself is
+parsed. Therefore, they are not preserved when the configuration is
+written back out to a stream. There is presently no support for
+programmatically inserting include directives into a configuration.
+
+@node The C API, The C++ API, Configuration Files, Top
+@comment  node-name,  next,  previous,  up
+@chapter The C API
+
+@tindex config_t
+@tindex config_setting_t
+This chapter describes the C library API. The type @i{config_t}
+represents a configuration, and the type @i{config_setting_t} represents
+a configuration setting.
+
+The boolean values @code{CONFIG_TRUE} and @code{CONFIG_FALSE} are
+macros defined as @code{(1)} and @code{(0)}, respectively.
+
+@deftypefun void config_init (@w{config_t * @var{config}})
+@deftypefunx void config_destroy (@w{config_t * @var{config}})
+
+These functions initialize and destroy the configuration object @var{config}.
+
+@code{config_init()} initializes the @i{config_t} structure pointed to by
+@var{config} as a new, empty configuration.
+
+@code{config_destroy()} destroys the configuration @var{config},
+deallocating all memory associated with the configuration, but does not
+attempt to deallocate the @i{config_t} structure itself.
+
+@end deftypefun
+
+@deftypefun int config_read (@w{config_t * @var{config}}, @w{FILE * @var{stream}})
+
+This function reads and parses a configuration from the given
+@var{stream} into the configuration object @var{config}. It returns
+@code{CONFIG_TRUE} on success, or @code{CONFIG_FALSE} on failure; the
+@code{config_error_text()}, @code{config_error_file()},
+@code{config_error_line()}, and @code{config_error_type()} functions,
+described below, can be used to obtain information about the error.
+
+@end deftypefun
+
+@deftypefun int config_read_file (@w{config_t * @var{config}}, @w{const char * @var{filename}})
+
+This function reads and parses a configuration from the file named
+@var{filename} into the configuration object @var{config}. It returns
+@code{CONFIG_TRUE} on success, or @code{CONFIG_FALSE} on failure; the
+@code{config_error_text()} and @code{config_error_line()} functions,
+described below, can be used to obtain information about the error.
+
+@end deftypefun
+
+@deftypefun int config_read_string (@w{config_t * @var{config}}, @w{const char * @var{str}})
+
+This function reads and parses a configuration from the string
+@var{str} into the configuration object @var{config}. It returns
+@code{CONFIG_TRUE} on success, or @code{CONFIG_FALSE} on failure; the
+@code{config_error_text()} and @code{config_error_line()} functions,
+described below, can be used to obtain information about the error.
+
+@end deftypefun
+
+@deftypefun void config_write (@w{const config_t * @var{config}}, @w{FILE * @var{stream}})
+
+This function writes the configuration @var{config} to the given
+@var{stream}.
+
+@end deftypefun
+
+@deftypefun int config_write_file (@w{config_t * @var{config}}, @w{const char * @var{filename}})
+
+This function writes the configuration @var{config} to the file named
+@var{filename}. It returns @code{CONFIG_TRUE} on success, or
+@code{CONFIG_FALSE} on failure.
+
+@end deftypefun
+
+@deftypefun {const char *} config_error_text (@w{const config_t * @var{config}})
+@deftypefunx {const char *} config_error_file (@w{const config_t * @var{config}})
+@deftypefunx int config_error_line (@w{const config_t * @var{config}})
+
+These functions, which are implemented as macros, return the text,
+filename, and line number of the parse error, if one occurred during a
+call to @code{config_read()}, @code{config_read_string()}, or
+@code{config_read_file()}. Storage for the strings returned by
+@code{config_error_text()} and @code{config_error_file()} are managed
+by the library and released automatically when the configuration is
+destroyed; these strings must not be freed by the caller. If the error
+occurred in text that was read from a string or stream,
+@code{config_error_file()} will return NULL.
+
+@end deftypefun
+
+@deftypefun config_error_t config_error_type (@w{const config_t * @var{config}})
+@tindex config_error_t
+This function, which is implemented as a macro, returns the type of
+error that occurred during the last call to one of the read or write
+functions. The @var{config_error_t} type is an enumeration with the
+following values: @code{CONFIG_ERR_NONE}, @code{CONFIG_ERR_FILE_IO},
+@code{CONFIG_ERR_PARSE}. These represent success, a file I/O error,
+and a parsing error, respectively.
+
+@end deftypefun
+
+@deftypefun void config_set_include_dir (@w{config_t *@var{config}}, @w{const char *@var{include_dir}})
+@deftypefunx {const char *} config_get_include_dir (@w{const config_t *@var{config}})
+
+@code{config_set_include_dir()} specifies the include directory,
+@var{include_dir}, relative to which the files specified in
+@samp{@@include} directives will be located for the configuration
+@var{config}. By default, there is no include directory, and all
+include files are expected to be relative to the current working
+directory. If @var{include_dir} is @code{NULL}, the default behavior
+is reinstated.
+
+For example, if the include directory is set to @file{/usr/local/etc},
+the include directive @samp{@@include "configs/extra.cfg"} would include the
+file @file{/usr/local/etc/configs/extra.cfg}.
+
+@code{config_get_include_dir()} returns the current include directory for the
+configuration @var{config}, or @code{NULL} if none is set.
+
+@end deftypefun
+
+@deftypefun void config_set_auto_convert (@w{config_t *@var{config}}, @w{int @var{flag}})
+@deftypefunx int config_get_auto_convert (@w{const config_t *@var{config}})
+
+@code{config_set_auto_convert()} enables number auto-conversion for
+the configuration @var{config} if @var{flag} is non-zero, and disables
+it otherwise. When this feature is enabled, an attempt to retrieve a
+floating point setting's value into an integer (or vice versa), or
+store an integer to a floating point setting's value (or vice versa)
+will cause the library to silently perform the necessary conversion
+(possibly leading to loss of data), rather than reporting failure. By
+default this feature is disabled.
+
+@code{config_get_auto_convert()} returns @code{CONFIG_TRUE} if number
+auto-conversion is currently enabled for @var{config}; otherwise it
+returns @code{CONFIG_FALSE}.
+
+@end deftypefun
+
+@deftypefun void config_set_default_format (@w{config_t * @var{config}}, @w{short @var{format}})
+@deftypefunx short config_get_default_format (@w{config_t * @var{config}})
+
+These functions, which are implemented as macros, set and get the
+default external format for settings in the configuration
+@var{config}. If a non-default format has not been set for a setting
+with @code{config_setting_set_format()}, this configuration-wide
+default format will be used instead when that setting is written to a
+file or stream.
+
+@end deftypefun
+
+@deftypefun void config_set_tab_width (@w{config_t * @var{config}}, @w{unsigned short @var{width}})
+@deftypefunx {unsigned short} config_get_tab_width (@w{const config_t * @var{config}})
+
+These functions, which are implemented as macros, set and get the tab
+width for the configuration @var{config}. The tab width affects the
+formatting of the configuration when it is written to a file or
+stream: each level of nesting is indented by @var{width} spaces, or
+by a single tab character if @var{width} is 0. The tab width has no
+effect on parsing.
+
+Valid tab widths range from 0 to 15. The default tab width is 2.
+
+@end deftypefun
+
+@deftypefun int config_lookup_int (@w{const config_t * @var{config}}, @w{const char * @var{path}}, @w{int * @var{value}})
+@deftypefunx int config_lookup_int64 (@w{const config_t * @var{config}}, @w{const char * @var{path}}, @w{long long * @var{value}})
+@deftypefunx int config_lookup_float (@w{const config_t * @var{config}}, @w{const char * @var{path}}, @w{double * @var{value}})
+@deftypefunx int config_lookup_bool (@w{const config_t * @var{config}}, @w{const char * @var{path}}, @w{int * @var{value}})
+@deftypefunx int config_lookup_string (@w{const config_t * @var{config}}, @w{const char * @var{path}}, @w{const char ** @var{value}})
+
+These functions look up the value of the setting in the configuration
+@var{config} specified by the path @var{path}. They store the value of
+the setting at @var{value} and return @code{CONFIG_TRUE} on
+success. If the setting was not found or if the type of the value did
+not match the type requested, they leave the data pointed to by
+@var{value} unmodified and return @code{CONFIG_FALSE}.
+
+Storage for the string returned by @code{config_lookup_string()} is
+managed by the library and released automatically when the setting is
+destroyed or when the setting's value is changed; the string must not
+be freed by the caller.
+
+@end deftypefun
+
+@deftypefun {config_setting_t *} config_lookup (@w{const config_t * @var{config}}, @w{const char * @var{path}})
+
+This function locates the setting in the configuration @var{config}
+specified by the path @var{path}. It returns a pointer to the
+@code{config_setting_t} structure on success, or @code{NULL} if the
+setting was not found.
+
+@end deftypefun
+
+@deftypefun int config_setting_get_int (@w{const config_setting_t * @var{setting}})
+@deftypefunx {long long} config_setting_get_int64 (@w{const config_setting_t * @var{setting}})
+@deftypefunx double config_setting_get_float (@w{const config_setting_t * @var{setting}})
+@deftypefunx int config_setting_get_bool (@w{const config_setting_t * @var{setting}})
+@deftypefunx {const char *} config_setting_get_string (@w{const config_setting_t * @var{setting}})
+
+These functions return the value of the given @var{setting}. If the
+type of the setting does not match the type requested, a 0 or
+@code{NULL} value is returned. Storage for the string returned by
+@code{config_setting_get_string()} is managed by the library and
+released automatically when the setting is destroyed or when the
+setting's value is changed; the string must not be freed by the
+caller.
+
+@end deftypefun
+@deftypefun int config_setting_set_int (@w{config_setting_t * @var{setting}}, @w{int @var{value}})
+@deftypefunx int config_setting_set_int64 (@w{config_setting_t * @var{setting}}, @w{long long @var{value}})
+@deftypefunx int config_setting_set_float (@w{config_setting_t * @var{setting}}, @w{double @var{value}})
+@deftypefunx int config_setting_set_bool (@w{config_setting_t * @var{setting}}, @w{int @var{value}})
+@deftypefunx int config_setting_set_string (@w{config_setting_t * @var{setting}}, @w{const char * @var{value}})
+
+These functions set the value of the given @var{setting} to
+@var{value}. On success, they return @code{CONFIG_TRUE}. If
+the setting does not match the type of the value, they return
+@code{CONFIG_FALSE}. @code{config_setting_set_string()} makes a copy
+of the passed string @var{value}, so it may be subsequently freed or
+modified by the caller without affecting the value of the setting.
+
+@end deftypefun
+
+@deftypefun int config_setting_lookup_int (@w{const config_setting_t * @var{setting}}, @w{const char * @var{name}}, @w{int * @var{value}})
+@deftypefunx int config_setting_lookup_int64 (@w{const config_setting_t * @var{setting}}, @w{const char * @var{name}}, @w{long long * @var{value}})
+@deftypefunx int config_setting_lookup_float (@w{const config_setting_t * @var{setting}}, @w{const char * @var{name}}, @w{double * @var{value}})
+@deftypefunx int config_setting_lookup_bool (@w{const config_setting_t * @var{setting}}, @w{const char * @var{name}}, @w{int * @var{value}})
+@deftypefunx int config_setting_lookup_string (@w{const config_setting_t * @var{setting}}, @w{const char * @var{name}}, @w{const char ** @var{value}})
+
+These functions look up the value of the child setting named
+@var{name} of the setting @var{setting}. They store the value at
+@var{value} and return @code{CONFIG_TRUE} on success. If the setting
+was not found or if the type of the value did not match the type
+requested, they leave the data pointed to by @var{value} unmodified
+and return @code{CONFIG_FALSE}.
+
+Storage for the string returned by @code{config_setting_lookup_string()} is
+managed by the library and released automatically when the setting is
+destroyed or when the setting's value is changed; the string must not
+be freed by the caller.
+
+@end deftypefun
+
+@deftypefun short config_setting_get_format (@w{config_setting_t * @var{setting}})
+@deftypefunx int config_setting_set_format (@w{config_setting_t * @var{setting}}, @w{short @var{format}})
+
+These functions get and set the external format for the setting @var{setting}.
+
+@tindex SettingFormat
+@cindex format
+
+The @var{format} must be one of the constants
+@code{CONFIG_FORMAT_DEFAULT} or @code{CONFIG_FORMAT_HEX}. All settings
+support the @code{CONFIG_FORMAT_DEFAULT} format. The
+@code{CONFIG_FORMAT_HEX} format specifies hexadecimal formatting for
+integer values, and hence only applies to settings of type
+@code{CONFIG_TYPE_INT} and @code{CONFIG_TYPE_INT64}.  If @var{format}
+is invalid for the given setting, it is ignored.
+
+If a non-default format has not been set for the setting, @code{config_setting_get_format()} returns the default format for the configuration, as set by @code{config_set_default_format()}.
+
+@code{config_setting_set_format()} returns @code{CONFIG_TRUE} on
+success and @code{CONFIG_FALSE} on failure.
+
+@end deftypefun
+
+
+@deftypefun {config_setting_t *} config_setting_get_member (@w{config_setting_t * @var{setting}}, @w{const char * @var{name}})
+
+This function fetches the child setting named @var{name} from the group
+@var{setting}. It returns the requested setting on success, or
+@code{NULL} if the setting was not found or if @var{setting} is not a
+group.
+
+@end deftypefun
+
+@deftypefun {config_setting_t *} config_setting_get_elem (@w{const config_setting_t * @var{setting}}, @w{unsigned int @var{index}})
+
+This function fetches the element at the given index @var{index} in the
+setting @var{setting}, which must be an array, list, or group. It returns the
+requested setting on success, or @code{NULL} if @var{index} is out of
+range or if @var{setting} is not an array, list, or group.
+
+@end deftypefun
+
+@deftypefun int config_setting_get_int_elem (@w{const config_setting_t * @var{setting}}, @w{int @var{index}})
+@deftypefunx {long long} config_setting_get_int64_elem (@w{const config_setting_t * @var{setting}}, @w{int @var{index}})
+@deftypefunx double config_setting_get_float_elem (@w{const config_setting_t * @var{setting}}, @w{int @var{index}})
+@deftypefunx int config_setting_get_bool_elem (@w{const config_setting_t * @var{setting}}, @w{int @var{index}})
+@deftypefunx {const char *} config_setting_get_string_elem (@w{const config_setting_t * @var{setting}}, @w{int @var{index}})
+
+These functions return the value at the specified index @var{index} in the
+setting @var{setting}. If the setting is not an array or list, or if
+the type of the element does not match the type requested, or if
+@var{index} is out of range, they return 0 or @code{NULL}. Storage for
+the string returned by @code{config_setting_get_string_elem()} is
+managed by the library and released automatically when the setting is
+destroyed or when its value is changed; the string must not be freed
+by the caller.
+@end deftypefun
+
+@deftypefun {config_setting_t *} config_setting_set_int_elem (@w{config_setting_t * @var{setting}}, @w{int @var{index}}, @w{int @var{value}})
+@deftypefunx {config_setting_t *} config_setting_set_int64_elem (@w{config_setting_t * @var{setting}}, @w{int @var{index}}, @w{long long @var{value}})
+@deftypefunx {config_setting_t *} config_setting_set_float_elem (@w{config_setting_t * @var{setting}}, @w{int @var{index}}, @w{double @var{value}})
+@deftypefunx {config_setting_t *} config_setting_set_bool_elem (@w{config_setting_t * @var{setting}}, @w{int @var{index}}, @w{int @var{value}})
+@deftypefunx {config_setting_t *} config_setting_set_string_elem (@w{config_setting_t * @var{setting}}, @w{int @var{index}}, @w{const char * @var{value}})
+
+These functions set the value at the specified index @var{index} in the
+setting @var{setting} to @var{value}. If @var{index} is negative, a
+new element is added to the end of the array or list. On success,
+these functions return a pointer to the setting representing the
+element. If the setting is not an array or list, or if the setting is
+an array and the type of the array does not match the type of the
+value, or if @var{index} is out of range, they return
+@code{NULL}. @code{config_setting_set_string_elem()} makes a copy of
+the passed string @var{value}, so it may be subsequently freed or
+modified by the caller without affecting the value of the setting.
+@end deftypefun
+
+@deftypefun {config_setting_t *} config_setting_add (@w{config_setting_t * @var{parent}}, @w{const char * @var{name}}, @w{int @var{type}})
+
+This function adds a new child setting or element to the setting
+@var{parent}, which must be a group, array, or list. If @var{parent}
+is an array or list, the @var{name} parameter is ignored and may be
+@code{NULL}.
+
+The function returns the new setting on success, or @code{NULL} if
+@var{parent} is not a group, array, or list; or if there is already a
+child setting of @var{parent} named @var{name}; or if @var{type} is
+invalid. If @var{type} is a scalar type, the new setting will have a
+default value of 0, 0.0, @code{false}, or @code{NULL}, as appropriate.
+@end deftypefun
+
+@deftypefun int config_setting_remove (@w{config_setting_t * @var{parent}}, @w{const char * @var{name}})
+
+This function removes and destroys the setting named @var{name} from
+the parent setting @var{parent}, which must be a group. Any child
+settings of the setting are recursively destroyed as well.
+
+The function returns @code{CONFIG_TRUE} on success. If @var{parent} is
+not a group, or if it has no setting with the given name, it returns
+@code{CONFIG_FALSE}.
+
+@end deftypefun
+
+@deftypefun int config_setting_remove_elem (@w{config_setting_t * @var{parent}}, @w{unsigned int @var{index}})
+
+This function removes the child setting at the given index @var{index} from
+the setting @var{parent}, which must be a group, list, or array. Any
+child settings of the removed setting are recursively destroyed as
+well.
+
+The function returns @code{CONFIG_TRUE} on success. If @var{parent} is
+not a group, list, or array, or if @var{index} is out of range, it returns
+@code{CONFIG_FALSE}.
+
+@end deftypefun
+
+@deftypefun {config_setting_t *} config_root_setting (@w{const config_t * @var{config}})
+
+This function returns the root setting for the configuration
+@var{config}. The root setting is a group.
+
+@end deftypefun
+
+@deftypefun {const char *} config_setting_name (@w{const config_setting_t * @var{setting}})
+
+This function returns the name of the given @var{setting}, or
+@code{NULL} if the setting has no name. Storage for the returned
+string is managed by the library and released automatically when the
+setting is destroyed; the string must not be freed by the caller.
+
+@end deftypefun
+
+@deftypefun {config_setting_t *} config_setting_parent (@w{const config_setting_t * @var{setting}})
+
+This function returns the parent setting of the given @var{setting},
+or @code{NULL} if @var{setting} is the root setting.
+
+@end deftypefun
+
+@deftypefun int config_setting_is_root (@w{const config_setting_t * @var{setting}})
+
+This function returns @code{CONFIG_TRUE} if the given @var{setting} is
+the root setting, and @code{CONFIG_FALSE} otherwise.
+
+@end deftypefun
+
+@deftypefun int config_setting_index (@w{const config_setting_t * @var{setting}})
+
+This function returns the index of the given @var{setting} within its
+parent setting. If @var{setting} is the root setting, this function
+returns -1.
+
+@end deftypefun
+
+@deftypefun int config_setting_length (@w{const config_setting_t * @var{setting}})
+
+This function returns the number of settings in a group, or the number of
+elements in a list or array. For other types of settings, it returns
+0.
+
+@end deftypefun
+
+@deftypefun int config_setting_type (@w{const config_setting_t * @var{setting}})
+
+This function returns the type of the given @var{setting}. The return
+value is one of the constants
+@code{CONFIG_TYPE_INT}, @code{CONFIG_TYPE_INT64}, @code{CONFIG_TYPE_FLOAT},
+@code{CONFIG_TYPE_STRING}, @code{CONFIG_TYPE_BOOL},
+@code{CONFIG_TYPE_ARRAY}, @code{CONFIG_TYPE_LIST}, or @code{CONFIG_TYPE_GROUP}.
+
+@end deftypefun
+
+@deftypefun int config_setting_is_group (@w{const config_setting_t * @var{setting}})
+@deftypefunx int config_setting_is_array (@w{const config_setting_t * @var{setting}})
+@deftypefunx int config_setting_is_list (@w{const config_setting_t * @var{setting}})
+
+These convenience functions, which are implemented as macros, test if
+the setting @var{setting} is of a given type. They return
+@code{CONFIG_TRUE} or @code{CONFIG_FALSE}.
+
+@end deftypefun
+
+@deftypefun int config_setting_is_aggregate (@w{const config_setting_t * @var{setting}})
+@deftypefunx int config_setting_is_scalar (@w{const config_setting_t * @var{setting}})
+@deftypefunx int config_setting_is_number (@w{const config_setting_t * @var{setting}})
+
+@cindex aggregate value
+These convenience functions, which are implemented as macros, test if
+the setting @var{setting} is of an aggregate type (a group, array, or
+list), of a scalar type (integer, 64-bit integer, floating point,
+boolean, or string), and of a number (integer, 64-bit integer, or
+floating point), respectively. They return @code{CONFIG_TRUE} or
+@code{CONFIG_FALSE}.
+
+@end deftypefun
+
+@deftypefun {const char *} config_setting_source_file (@w{const config_setting_t * @var{setting}})
+
+This function returns the name of the file from which the setting
+@var{setting} was read, or NULL if the setting was not read from a
+file. This information is useful for reporting application-level
+errors. Storage for the returned string is managed by the library and
+released automatically when the configuration is destroyed; the
+string must not be freed by the caller.
+
+@end deftypefun
+
+@deftypefun {unsigned int} config_setting_source_line (@w{const config_setting_t * @var{setting}})
+
+This function returns the line number of the configuration file or
+stream at which the setting @var{setting} was read, or 0 if no line
+number is available. This information is useful for reporting
+application-level errors.
+
+@end deftypefun
+
+@deftypefun void config_setting_set_hook (@w{config_setting_t * @var{setting}}, @w{void * @var{hook}})
+@deftypefunx {void *} config_setting_get_hook (@w{const config_setting_t * @var{setting}})
+
+These functions make it possible to attach arbitrary data to each
+setting structure, for instance a ``wrapper'' or ``peer'' object written in
+another programming language. The destructor function, if one has been
+supplied via a call to @code{config_set_destructor()}, will be called
+by the library to dispose of this data when the setting itself is
+destroyed. There is no default destructor.
+
+@end deftypefun
+
+@deftypefun void config_set_destructor (@w{config_t * @var{config}}, @w{void (* @var{destructor})(void *)})
+
+This function assigns the destructor function @var{destructor} for the
+configuration @var{config}. This function accepts a single @code{void
+*} argument and has no return value. See
+@code{config_setting_set_hook()} above for more information.
+
+@end deftypefun
+
+@node The C++ API, Example Programs, The C API, Top
+@comment  node-name,  next,  previous,  up
+@chapter The C++ API
+
+@tindex Config
+@tindex Setting
+This chapter describes the C++ library API. The class @code{Config}
+represents a configuration, and the class @code{Setting} represents a
+configuration setting. Note that by design, neither of these classes
+provides a public copy constructor or assignment operator. Therefore,
+instances of these classes may only be passed between functions via
+references or pointers.
+
+@tindex ConfigException
+The library defines a group of exceptions, all of which extend the
+common base exception @code{ConfigException}.
+
+@tindex SettingTypeException
+A @code{SettingTypeException} is thrown when the type of a setting's
+value does not match the type requested.
+
+@tindex SettingNotFoundException
+A @code{SettingNotFoundException} is thrown when a setting is not found.
+
+@tindex SettingNameException
+A @code{SettingNameException} is thrown when an attempt is made to add
+a new setting with a non-unique or invalid name.
+
+@tindex ParseException
+A @code{ParseException} is thrown when a parse error occurs while
+reading a configuration from a stream.
+
+@tindex FileIOException
+A @code{FileIOException} is thrown when an I/O error occurs while
+reading/writing a configuration from/to a file.
+
+@tindex SettingException
+@code{SettingTypeException}, @code{SettingNotFoundException}, and
+@code{SettingNameException} all extend the common base
+exception @code{SettingException}, which provides the following method:
+
+@deftypemethod SettingException {const char *} getPath ()
+
+Returns the path to the setting associated with the exception, or
+@code{NULL} if there is no applicable path.
+
+@end deftypemethod
+
+The remainder of this chapter describes the methods for manipulating
+configurations and configuration settings.
+
+@deftypemethod Config {} Config ()
+@deftypemethodx Config {} ~Config ()
+
+These methods create and destroy @code{Config} objects. 
+
+@end deftypemethod
+
+@deftypemethod Config void read (@w{FILE * @var{stream}})
+@deftypemethodx Config void write (@w{FILE * @var{stream}})
+
+The @code{read()} method reads and parses a configuration from the given
+@var{stream}. A @code{ParseException} is thrown if a parse error occurs.
+
+The @code{write()} method writes the configuration to the given @var{stream}.
+
+@end deftypemethod
+
+@deftypemethod Config void readFile (@w{const char * @var{filename}})
+@deftypemethodx Config void writeFile (@w{const char * @var{filename}})
+
+The @code{readFile()} method reads and parses a configuration from the
+file named @var{filename}. A @code{ParseException} is thrown if a
+parse error occurs. A @code{FileIOException} is thrown if the file
+cannot be read.
+
+The @code{writeFile()} method writes the configuration to the file
+named @var{filename}. A @code{FileIOException} is thrown if the file cannot
+be written.
+
+@end deftypemethod
+
+@deftypemethod Config void readString (@w{const char * @var{str}})
+@deftypemethodx Config void readString (@w{const std::string &@var{str}})
+
+These methods read and parse a configuration from the string
+@var{str}. A @code{ParseException} is thrown if a parse error occurs.
+
+@end deftypemethod
+
+@deftypemethod ParseException {const char *} getError ()
+@deftypemethodx ParseException {const char *} getFile ()
+@deftypemethodx ParseException int getLine ()
+
+If a call to @code{readFile()}, @code{readString()}, or @code{read()}
+resulted in a @code{ParseException}, these methods can be called on
+the exception object to obtain the text, filename, and line number of
+the parse error. Storage for the strings returned by @code{getError()}
+and @code{getFile()} are managed by the library; the strings must not
+be freed by the caller.
+
+@end deftypemethod
+
+@deftypemethod Config void setIncludeDir (@w{const char *@var{includeDir}})
+@deftypemethodx Config {const char *} getIncludeDir ()
+
+@code{setIncludeDir()} specifies the include directory,
+@var{includeDir}, relative to which the files specified in
+@samp{@@include} directives will be located for the configuration. By
+default, there is no include directory, and all include files are
+expected to be relative to the current working directory. If
+@var{includeDir} is @code{NULL}, the default behavior is reinstated.
+
+For example, if the include directory is set to @file{/usr/local/etc},
+the include directive @samp{@@include "configs/extra.cfg"} would include the
+file @file{/usr/local/etc/configs/extra.cfg}.
+
+@code{getIncludeDir()} returns the current include directory for the
+configuration, or @code{NULL} if none is set.
+
+@end deftypemethod
+
+@deftypemethod Config void setAutoConvert (bool @var{flag})
+@deftypemethodx Config bool getAutoConvert ()
+
+@code{setAutoConvert()} enables number auto-conversion for the
+configuration if @var{flag} is @code{true}, and disables it
+otherwise. When this feature is enabled, an attempt to assign a
+floating point setting to an integer (or vice versa), or
+assign an integer to a floating point setting (or vice versa) will
+cause the library to silently perform the necessary conversion
+(possibly leading to loss of data), rather than throwing a
+@code{SettingTypeException}. By default this feature is disabled.
+
+@code{getAutoConvert()} returns @code{true} if number auto-conversion
+is currently enabled for the configuration; otherwise it returns
+@code{false}.
+
+@end deftypemethod
+
+@deftypemethod Config void setDefaultFormat (@w{Setting::Format @var{format}})
+@deftypemethodx Config Setting::Format getDefaultFormat ()
+
+These methods set and get the default external format for settings in
+the configuration. If a non-default format has not been set for a
+setting with @code{Setting::setFormat()}, this configuration-wide
+default format will be used instead when that setting is written to a
+file or stream.
+
+@end deftypemethod
+
+@deftypemethod Config void setTabWidth (@w{unsigned short @var{width}})
+@deftypemethodx Config {unsigned short} getTabWidth ()
+
+These methods set and get the tab width for the configuration. The tab
+width affects the formatting of the configuration when it is written
+to a file or stream: each level of nesting is indented by @var{width}
+spaces, or by a single tab character if @var{width} is 0. The tab
+width has no effect on parsing.
+
+Valid tab widths range from 0 to 15. The default tab width is 2.
+
+@end deftypemethod
+
+@deftypemethod Config {Setting &} getRoot ()
+
+This method returns the root setting for the configuration, which is a group.
+
+@end deftypemethod
+
+@deftypemethod Config {Setting &} lookup (@w{const std::string &@var{path}})
+@deftypemethodx Config {Setting &} lookup (@w{const char * @var{path}})
+
+These methods locate the setting specified by the path @var{path}. If
+the requested setting is not found, a @code{SettingNotFoundException} is
+thrown.
+
+@end deftypemethod
+@deftypemethod Config bool exists (@w{const std::string &@var{path}})
+@deftypemethodx Config bool exists (@w{const char *@var{path}})
+
+These methods test if a setting with the given @var{path} exists in
+the configuration. They return @code{true} if the setting exists, and
+@code{false} otherwise. These methods do not throw exceptions.
+
+@end deftypemethod
+
+@deftypemethod Config bool lookupValue (@w{const char *@var{path}}, @w{bool &@var{value}})
+@deftypemethodx Config bool lookupValue (@w{const std::string &@var{path}}, @w{bool &@var{value}})
+
+@deftypemethodx Config bool lookupValue (@w{const char *@var{path}}, @w{int &@var{value}})
+@deftypemethodx Config bool lookupValue (@w{const std::string &@var{path}}, @w{int &@var{value}})
+
+@deftypemethodx Config bool lookupValue (@w{const char *@var{path}}, @w{unsigned int &@var{value}})
+@deftypemethodx Config bool lookupValue (@w{const std::string &@var{path}}, @w{unsigned int &@var{value}})
+
+@deftypemethodx Config bool lookupValue (@w{const char *@var{path}}, @w{long long &@var{value}})
+@deftypemethodx Config bool lookupValue (@w{const std::string &@var{path}}, @w{long long &@var{value}})
+
+@deftypemethodx Config bool lookupValue (@w{const char *@var{path}}, @w{float &@var{value}})
+@deftypemethodx Config bool lookupValue (@w{const std::string &@var{path}}, @w{float &@var{value}})
+
+@deftypemethodx Config bool lookupValue (@w{const char *@var{path}}, @w{double &@var{value}})
+@deftypemethodx Config bool lookupValue (@w{const std::string &@var{path}}, @w{double &@var{value}})
+
+@deftypemethodx Config bool lookupValue (@w{const char *@var{path}}, @w{const char *&@var{value}})
+@deftypemethodx Config bool lookupValue (@w{const std::string &@var{path}}, @w{const char *&@var{value}})
+
+@deftypemethodx Config bool lookupValue (@w{const char *@var{path}}, @w{std::string &@var{value}})
+@deftypemethodx Config bool lookupValue (@w{const std::string &@var{path}}, @w{std::string &@var{value}})
+
+These are convenience methods for looking up the value of a setting
+with the given @var{path}. If the setting is found and is of an
+appropriate type, the value is stored in @var{value} and the method
+returns @code{true}. Otherwise, @var{value} is left unmodified and the
+method returns @code{false}. These methods do not throw exceptions.
+
+Storage for @w{@i{const char *}} values is managed by the library and
+released automatically when the setting is destroyed or when its value
+is changed; the string must not be freed by the caller. For safety and
+convenience, always assigning string values to a @code{std::string} is
+suggested.
+
+Since these methods have boolean return values and do not throw
+exceptions, they can be used within boolean logic expressions. The following
+example presents a concise way to look up three values at once and
+perform error handling if any of them are not found or are of the
+wrong type:
+
+@sp 1
+@cartouche
+@smallexample
+int var1;
+double var2;
+const char *var3;
+
+if(config.lookupValue("values.var1", var1)
+   && config.lookupValue("values.var2", var2)
+   && config.lookupValue("values.var3", var3))
+@{
+  // use var1, var2, var3
+@}
+else
+@{
+  // error handling here
+@}
+@end smallexample
+@end cartouche
+
+This approach also takes advantage of the short-circuit evaluation rules
+of C++, e.g., if the first lookup fails (returning @code{false}), the
+remaining lookups are skipped entirely.
+
+@end deftypemethod
+
+@deftypemethod Setting {} {operator bool ()}
+@deftypemethodx Setting {} {operator int ()}
+@deftypemethodx Setting {} {operator unsigned int ()}
+@deftypemethodx Setting {} {operator long ()}
+@deftypemethodx Setting {} {operator unsigned long ()}
+@deftypemethodx Setting {} {operator long long ()}
+@deftypemethodx Setting {} {operator unsigned long long ()}
+@deftypemethodx Setting {} {operator float ()}
+@deftypemethodx Setting {} {operator double ()}
+@deftypemethodx Setting {} {operator const char * ()}
+@deftypemethodx Setting {} {operator std::string ()}
+@deftypemethodx Setting {const char *} c_str ()
+
+These cast operators allow a @code{Setting} object to be assigned to a
+variable of type @i{bool} if it is of type @code{TypeBoolean};
+@i{int}, @i{unsigned int}; @code{long long} or @code{unsigned long long} if
+it is of type @code{TypeInt64}, @i{float} or @i{double} if it is of type
+@code{TypeFloat}; or @w{@i{const char *}} or @i{std::string} if it is
+of type @code{TypeString}.
+
+Values of type @code{TypeInt} or @code{TypeInt64} may be assigned to
+variables of type @i{long}, or @i{unsigned long}, depending on the
+sizes of those types on the host system.
+
+Storage for @w{@i{const char *}} return values is managed by the
+library and released automatically when the setting is destroyed or
+when its value is changed; the string must not be freed by the
+caller. For safety and convenience, always assigning string return
+values to a @code{std::string} is suggested.
+
+The following examples demonstrate this usage:
+
+@cartouche
+@smallexample
+long width = config.lookup("application.window.size.w");
+
+bool splashScreen = config.lookup("application.splash_screen");
+
+std::string title = config.lookup("application.window.title");
+@end smallexample
+@end cartouche
+
+Note that certain conversions can lead to loss of precision or
+clipping of values, e.g., assigning a negative value to an @i{unsigned
+int} (in which case the value will be treated as 0), or a
+double-precision value to a @i{float}. The library does not treat
+these lossy conversions as errors.
+
+Perhaps surprisingly, the following code in particular will cause a
+compiler error:
+
+@cartouche
+@smallexample
+std::string title;
+.
+.
+.
+title = config.lookup("application.window.title");
+@end smallexample
+@end cartouche
+
+This is because the assignment operator of @code{std::string} is being
+invoked with a @code{Setting &} as an argument. The compiler is unable
+to make an implicit conversion because both the @code{const char *}
+and the @code{std::string} cast operators of @code{Setting} are
+equally appropriate. This is not a bug in @i{libconfig}; providing
+only the @code{const char *} cast operator would resolve this
+particular ambiguity, but would cause assignments to
+@code{std::string} like the one in the previous example to produce a
+compiler error. (To understand why, see section 11.4.1 of @i{The C++
+Programming Language}.)
+
+The solution to this problem is to use an explicit conversion that
+avoids the construction of an intermediate @code{std::string} object,
+as follows:
+
+@cartouche
+@smallexample
+std::string title;
+.
+.
+.
+title = (const char *)config.lookup("application.window.title");
+@end smallexample
+@end cartouche
+
+Or, alternatively, use the @code{c_str()} method, which has the same effect:
+
+@cartouche
+@smallexample
+std::string title;
+.
+.
+.
+title = config.lookup("application.window.title").c_str();
+@end smallexample
+@end cartouche
+
+If the assignment is invalid due to a type mismatch, a
+@code{SettingTypeException} is thrown.
+
+@end deftypemethod
+
+@deftypemethod Setting {Setting &} operator= (@w{bool @var{value}})
+@deftypemethodx Setting {Setting &} operator= (@w{int @var{value}})
+@deftypemethodx Setting {Setting &} operator= (@w{long @var{value}})
+@deftypemethodx Setting {Setting &} operator= (@w{const long long &@var{value}})
+@deftypemethodx Setting {Setting &} operator= (@w{float @var{value}})
+@deftypemethodx Setting {Setting &} operator= (@w{const double &@var{value}})
+@deftypemethodx Setting {Setting &} operator= (@w{const char *@var{value}})
+@deftypemethodx Setting {Setting &} operator= (@w{const std::string &@var{value}})
+
+These assignment operators allow values of type @i{bool}, @i{int},
+@i{long}, @i{long long}, @i{float}, @i{double}, @i{const char *}, and
+@i{std::string} to be assigned to a setting. In the case of strings,
+the library makes a copy of the passed string @var{value}, so it may
+be subsequently freed or modified by the caller without affecting the
+value of the setting.
+
+The following example code looks up a (presumably) integer setting
+and changes its value:
+
+@cartouche
+@smallexample
+Setting &setting = config.lookup("application.window.size.w");
+setting = 1024;
+@end smallexample
+@end cartouche
+
+If the assignment is invalid due to a type mismatch, a
+@code{SettingTypeException} is thrown.
+
+@end deftypemethod
+
+@deftypemethod Setting {Setting &} {operator[]} (@w{int @var{index}})
+@deftypemethodx Setting {Setting &} {operator[]} (@w{const std::string &@var{name}})
+@deftypemethodx Setting {Setting &} {operator[]} (@w{const char *@var{name}})
+
+A @code{Setting} object may be subscripted with an integer index
+@var{index} if it is an array or list, or with either a string
+@var{name} or an integer index @var{index} if it is a group. For example,
+the following code would produce the string @samp{Last Name} when
+applied to the example configuration in @ref{Configuration Files}.
+
+@cartouche
+@smallexample
+Setting& setting = config.lookup("application.misc");
+const char *s = setting["columns"][0];
+@end smallexample
+@end cartouche
+
+If the setting is not an array, list, or group, a
+@code{SettingTypeException} is thrown. If the subscript (@var{index}
+or @var{name}) does not refer to a valid element, a
+@code{SettingNotFoundException} is thrown.
+
+Iterating over a group's child settings with an integer index will
+return the settings in the same order that they appear in the
+configuration.
+
+@end deftypemethod
+
+@deftypemethod Setting bool lookupValue (@w{const char *@var{name}}, @w{bool &@var{value}})
+@deftypemethodx Setting bool lookupValue (@w{const std::string &@var{name}}, @w{bool &@var{value}})
+
+@deftypemethodx Setting bool lookupValue (@w{const char *@var{name}}, @w{int &@var{value}})
+@deftypemethodx Setting bool lookupValue (@w{const std::string &@var{name}}, @w{int &@var{value}})
+
+@deftypemethodx Setting bool lookupValue (@w{const char *@var{name}}, @w{unsigned int &@var{value}})
+@deftypemethodx Setting bool lookupValue (@w{const std::string &@var{name}}, @w{unsigned int &@var{value}})
+
+@deftypemethodx Setting bool lookupValue (@w{const char *@var{name}}, @w{long long &@var{value}})
+@deftypemethodx Setting bool lookupValue (@w{const std::string &@var{name}}, @w{long long &@var{value}})
+
+@deftypemethodx Setting bool lookupValue (@w{const char *@var{name}}, @w{unsigned long long &@var{value}})
+@deftypemethodx Setting bool lookupValue (@w{const std::string &@var{name}}, @w{unsigned long long &@var{value}})
+
+@deftypemethodx Setting bool lookupValue (@w{const char *@var{name}}, @w{float &@var{value}})
+@deftypemethodx Setting bool lookupValue (@w{const std::string &@var{name}}, @w{float &@var{value}})
+
+@deftypemethodx Setting bool lookupValue (@w{const char *@var{name}}, @w{double &@var{value}})
+@deftypemethodx Setting bool lookupValue (@w{const std::string &@var{name}}, @w{double &@var{value}})
+
+@deftypemethodx Setting bool lookupValue (@w{const char *@var{name}}, @w{const char *&@var{value}})
+@deftypemethodx Setting bool lookupValue (@w{const std::string &@var{name}}, @w{const char *&@var{value}})
+
+@deftypemethodx Setting bool lookupValue (@w{const char *@var{name}}, @w{std::string &@var{value}})
+@deftypemethodx Setting bool lookupValue (@w{const std::string &@var{name}}, @w{std::string &@var{value}})
+
+These are convenience methods for looking up the value of a child setting
+with the given @var{name}. If the setting is found and is of an
+appropriate type, the value is stored in @var{value} and the method
+returns @code{true}. Otherwise, @var{value} is left unmodified and the
+method returns @code{false}. These methods do not throw exceptions.
+
+Storage for @w{@i{const char *}} values is managed by the library and
+released automatically when the setting is destroyed or when its value
+is changed; the string must not be freed by the caller. For safety and
+convenience, always assigning string values to a @code{std::string} is
+suggested.
+
+Since these methods have boolean return values and do not throw
+exceptions, they can be used within boolean logic expressions. The following
+example presents a concise way to look up three values at once and
+perform error handling if any of them are not found or are of the
+wrong type:
+
+@sp 1
+@cartouche
+@smallexample
+int var1;
+double var2;
+const char *var3;
+
+if(setting.lookupValue("var1", var1)
+   && setting.lookupValue("var2", var2)
+   && setting.lookupValue("var3", var3))
+@{
+  // use var1, var2, var3
+@}
+else
+@{
+  // error handling here
+@}
+@end smallexample
+@end cartouche
+
+This approach also takes advantage of the short-circuit evaluation
+rules of C++, e.g., if the first lookup fails (returning @code{false}), the
+remaining lookups are skipped entirely.
+
+@end deftypemethod
+
+@deftypemethod Setting {Setting &} add (@w{const std::string &@var{name}}, @w{Setting::Type @var{type}})
+@deftypemethodx Setting {Setting &} add (@w{const char *@var{name}}, @w{Setting::Type @var{type}})
+
+These methods add a new child setting with the given @var{name} and
+@var{type} to the setting, which must be a group. They return a
+reference to the new setting. If the setting already has a child
+setting with the given name, or if the name is invalid, a
+@code{SettingNameException} is thrown. If the setting is not a group,
+a @code{SettingTypeException} is thrown.
+
+Once a setting has been created, neither its name nor type can be
+changed.
+
+@end deftypemethod
+
+@deftypemethod Setting {Setting &} add (@w{Setting::Type @var{type}})
+
+This method adds a new element to the setting, which must be of type
+@code{TypeArray} or @code{TypeList}. If the setting is an array which
+currently has zero elements, the @var{type} parameter (which must be
+@code{TypeInt}, @code{TypeInt64}, @code{TypeFloat}, @code{TypeBool},
+or @code{TypeString}) determines the type for the array; otherwise it
+must match the type of the existing elements in the array.
+
+The method returns the new setting on success. If @var{type} is a
+scalar type, the new setting will have a default value of 0, 0.0,
+@code{false}, or @code{NULL}, as appropriate.
+
+The method throws a @code{SettingTypeException} if the setting is not
+an array or list, or if @var{type} is invalid.
+
+@end deftypemethod
+
+@deftypemethod Setting void remove (@w{const std::string &@var{name}})
+@deftypemethodx Setting void remove (@w{const char *@var{name}})
+
+These methods remove the child setting with the given @var{name} from
+the setting, which must be a group. Any child settings of the removed
+setting are recursively destroyed as well.
+
+If the setting is not a group, a @code{SettingTypeException} is
+thrown.  If the setting does not have a child setting with the given
+name, a @code{SettingNotFoundException} is thrown.
+
+@end deftypemethod
+
+@deftypemethod Setting void remove (@w{unsigned int @var{index}})
+
+This method removes the child setting at the given index @var{index} from
+the setting, which must be a group, list, or array. Any child settings
+of the removed setting are recursively destroyed as well.
+
+If the setting is not a group, list, or array, a
+@code{SettingTypeException} is thrown.  If @var{index} is out of range,
+a @code{SettingNotFoundException} is thrown.
+
+@end deftypemethod
+
+@deftypemethod Setting {const char *} getName ()
+
+This method returns the name of the setting, or @code{NULL} if the
+setting has no name. Storage for the returned string is managed by the
+library and released automatically when the setting is destroyed; the
+string must not be freed by the caller. For safety and convenience,
+consider assigning the return value to a @code{std::string}.
+
+@end deftypemethod
+
+@deftypemethod Setting {std::string} getPath ()
+
+This method returns the complete dot-separated path to the
+setting. Settings which do not have a name (list and array elements)
+are represented by their index in square brackets.
+
+@end deftypemethod
+
+@deftypemethod Setting {Setting &} getParent ()
+
+This method returns the parent setting of the setting. If the setting
+is the root setting, a @code{SettingNotFoundException} is thrown.
+
+@end deftypemethod
+
+@deftypemethod Setting bool isRoot ()
+
+This method returns @code{true} if the setting is the root setting, and
+@code{false} otherwise.
+
+@end deftypemethod
+
+@deftypemethod Setting int getIndex ()
+
+This method returns the index of the setting within its parent
+setting. When applied to the root setting, this method returns -1.
+
+@end deftypemethod
+
+@deftypemethod Setting Setting::Type getType ()
+
+@tindex Setting::Type
+This method returns the type of the setting. The
+@code{Setting::Type} enumeration consists of the following constants:
+@code{TypeInt}, @code{TypeInt64}, @code{TypeFloat}, @code{TypeString},
+@code{TypeBoolean}, @code{TypeArray}, @code{TypeList}, and
+@code{TypeGroup}.
+
+@end deftypemethod
+
+@deftypemethod Setting Setting::Format getFormat ()
+@deftypemethodx Setting void setFormat (@w{Setting::Format @var{format}})
+
+These methods get and set the external format for the setting.
+
+@tindex Setting::Format
+The @var{Setting::Format} enumeration consists of the following
+constants: @code{FormatDefault} and @code{FormatHex}. All settings
+support the @code{FormatDefault} format. The @code{FormatHex} format
+specifies hexadecimal formatting for integer values, and hence only
+applies to settings of type @code{TypeInt} and @code{TypeInt64}. If
+@var{format} is invalid for the given setting, it is ignored.
+
+@end deftypemethod
+
+@deftypemethod Setting bool exists (@w{const std::string &@var{name}})
+@deftypemethodx Setting bool exists (@w{const char *@var{name}})
+
+These methods test if the setting has a child setting with the given
+@var{name}. They return @code{true} if the setting exists, and
+@code{false} otherwise. These methods do not throw exceptions.
+
+@end deftypemethod
+
+@deftypemethod Setting int getLength ()
+
+This method returns the number of settings in a group, or the number of
+elements in a list or array. For other types of settings, it returns
+0.
+
+@end deftypemethod
+
+@deftypemethod Setting bool isGroup ()
+@deftypemethodx Setting bool isArray ()
+@deftypemethodx Setting bool isList ()
+
+These convenience methods test if a setting is of a given type.
+
+@end deftypemethod
+
+@deftypemethod Setting bool isAggregate ()
+@deftypemethodx Setting bool isScalar ()
+@deftypemethodx Setting bool isNumber ()
+
+These convenience methods test if a setting is of an aggregate type (a
+group, array, or list), of a scalar type (integer, 64-bit integer,
+floating point, boolean, or string), and of a number (integer, 64-bit
+integer, or floating point), respectively.
+
+@end deftypemethod
+
+@deftypemethod Setting {const char *} getSourceFile ()
+
+This function returns the name of the file from which the setting was
+read, or NULL if the setting was not read from a file. This
+information is useful for reporting application-level errors. Storage
+for the returned string is managed by the library and released
+automatically when the configuration is destroyed; the string must
+not be freed by the caller.
+
+@end deftypemethod
+
+@deftypemethod Setting {unsigned int} getSourceLine ()
+
+This function returns the line number of the configuration file or
+stream at which the setting @var{setting} was read, or 0 if no line
+number is available. This information is useful for reporting
+application-level errors.
+
+@end deftypemethod
+
+@node Example Programs, Configuration File Grammar, The C++ API, Top
+@comment  node-name,  next,  previous,  up
+@chapter Example Programs
+
+Practical example programs that illustrate how to use @i{libconfig}
+from both C and C++ are included in the @file{examples} subdirectory
+of the distribution. These examples include:
+
+@table @file
+
+@item examples/c/example1.c
+An example C program that reads a configuration from an existing file
+@file{example.cfg} (also located in @file{examples/c}) and displays
+some of its contents.
+
+@item examples/c++/example1.cpp
+The C++ equivalent of @file{example1.c}.
+
+@item examples/c/example2.c
+An example C program that reads a configuration from an existing file
+@file{example.cfg} (also located in @file{examples/c}), adds new
+settings to the configuration, and writes the updated configuration to
+another file.
+
+@item examples/c++/example2.cpp
+The C++ equivalent of @file{example2.c}
+
+@item examples/c/example3.c
+An example C program that constructs a new configuration in memory and writes it to a file.
+
+@item examples/c++/example3.cpp
+The C++ equivalent of @file{example3.c}
+
+@end table
+
+@node Configuration File Grammar, License, Example Programs, Top
+@comment  node-name,  next,  previous,  up
+@chapter Configuration File Grammar
+
+Below is the BNF grammar for configuration files. Comments and include
+directives are not part of the grammar, so they are not included here.
+
+@sp 1
+@example
+configuration = setting-list | empty
+
+setting-list = setting | setting-list setting
+
+setting = name (":" | "=") value (";" | "," | empty)
+
+value = scalar-value | array | list | group
+
+value-list = value | value-list "," value
+
+scalar-value = boolean | integer | integer64 | hex | hex64 | float
+               | string
+
+scalar-value-list = scalar-value | scalar-value-list "," scalar-value
+
+array = "[" (scalar-value-list | empty) "]"
+
+list = "(" (value-list | empty) ")"
+
+group = "@{" (setting-list | empty) "@}"
+
+empty =
+@end example
+
+@sp 2
+Terminals are defined below as regular expressions:
+@sp 1
+
+@multitable @columnfractions .2 .8
+@item @code{boolean} @tab
+@code{([Tt][Rr][Uu][Ee])|([Ff][Aa][Ll][Ss][Ee])}
+@item @code{string} @tab
+@code{\"([^\"\\]|\\.)*\"}
+@item @code{name} @tab
+@code{[A-Za-z\*][-A-Za-z0-9_\*]*}
+@item @code{integer} @tab
+@code{[-+]?[0-9]+}
+@item @code{integer64} @tab
+@code{[-+]?[0-9]+L(L)?}
+@item @code{hex} @tab
+@code{0[Xx][0-9A-Fa-f]+}
+@item @code{hex64} @tab
+@code{0[Xx][0-9A-Fa-f]+L(L)?}
+@item @code{float} @tab
+@code{([-+]?([0-9]*)?\.[0-9]*([eE][-+]?[0-9]+)?)|([-+]([0-9]+)(\.[0-9]*)?[eE][-+]?[0-9]+)}
+@end multitable
+
+@node License, Function Index, Configuration File Grammar, Top
+@comment  node-name,  next,  previous,  up
+@appendix License
+
+@include LGPL.texi
+
+@node Function Index, Type Index, License, Top
+@comment  node-name,  next,  previous,  up
+@unnumbered Function Index
+
+@printindex fn
+
+@node Type Index, Concept Index, Function Index, Top
+@comment  node-name,  next,  previous,  up
+@unnumbered Type Index
+
+@printindex tp
+
+@node Concept Index, , Type Index, Top
+@comment  node-name,  next,  previous,  up
+@unnumbered Concept Index
+
+@printindex cp
+
+@bye
diff --git a/3rdparty/libconfig/extra/gen/Makefile b/3rdparty/libconfig/extra/gen/Makefile
new file mode 100644
index 000000000..b4d2db841
--- /dev/null
+++ b/3rdparty/libconfig/extra/gen/Makefile
@@ -0,0 +1,70 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# gen/Makefile.  Generated from Makefile.in by configure.
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+
+LEXCOMPILE = $(LEX) $(LFLAGS) $(AM_LFLAGS)
+YLWRAP = ../aux-build/ylwrap
+YACCCOMPILE = $(YACC) $(YFLAGS) $(AM_YFLAGS)
+LEX = flex
+LEXLIB = -ll
+LEX_OUTPUT_ROOT = lex.yy
+SHELL = /bin/sh
+YACC = bison -y
+YFLAGS = 
+
+PARSER_PREFIX = libconfig_yy
+BUILT_SOURCES = scanner.c scanner.h grammar.c grammar.h
+AM_YFLAGS = -d -p $(PARSER_PREFIX)
+AM_LFLAGS = --nounistd --header-file=scanner.h --prefix=$(PARSER_PREFIX)
+
+all: $(BUILT_SOURCES)
+
+.SUFFIXES: .c .l .y
+
+grammar.h: grammar.c
+	@if test ! -f $@; then \
+	  rm -f grammar.c; \
+	  $(MAKE) grammar.c; \
+	else :; fi
+	
+
+distclean-compile:
+	-rm -f *.tab.c
+
+scanner.h: scanner.c
+
+.l.c:
+	$(SHELL) $(YLWRAP) $< $(LEX_OUTPUT_ROOT).c $@ -- $(LEXCOMPILE)
+
+.y.c:
+	$(SHELL) $(YLWRAP) $< y.tab.c $@ y.tab.h $*.h y.output $*.output -- $(YACCCOMPILE)
+
+clean:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-rm -f grammar.c
+	-rm -f grammar.h
+	-rm -f scanner.c
+	-test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+
+distclean: clean distclean-compile
+
+.MAKE: all
+
+.PHONY: all clean \
+	distclean \
+	distclean-compile
+
diff --git a/3rdparty/libconfig/extra/gen/Makefile.in b/3rdparty/libconfig/extra/gen/Makefile.in
new file mode 100644
index 000000000..5850c2392
--- /dev/null
+++ b/3rdparty/libconfig/extra/gen/Makefile.in
@@ -0,0 +1,70 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+LEXCOMPILE = $(LEX) $(LFLAGS) $(AM_LFLAGS)
+YLWRAP = ../aux-build/ylwrap
+YACCCOMPILE = $(YACC) $(YFLAGS) $(AM_YFLAGS)
+LEX = @LEX@
+LEXLIB = @LEXLIB@
+LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@
+SHELL = @SHELL@
+YACC = @YACC@
+YFLAGS = @YFLAGS@
+
+PARSER_PREFIX = libconfig_yy
+BUILT_SOURCES = scanner.c scanner.h grammar.c grammar.h
+AM_YFLAGS = -d -p $(PARSER_PREFIX)
+AM_LFLAGS = --nounistd --header-file=scanner.h --prefix=$(PARSER_PREFIX)
+
+all: $(BUILT_SOURCES)
+
+.SUFFIXES: .c .l .y
+
+grammar.h: grammar.c
+	@if test ! -f $@; then \
+	  rm -f grammar.c; \
+	  $(MAKE) grammar.c; \
+	else :; fi
+	
+
+distclean-compile:
+	-rm -f *.tab.c
+
+scanner.h: scanner.c
+
+.l.c:
+	$(SHELL) $(YLWRAP) $< $(LEX_OUTPUT_ROOT).c $@ -- $(LEXCOMPILE)
+
+.y.c:
+	$(SHELL) $(YLWRAP) $< y.tab.c $@ y.tab.h $*.h y.output $*.output -- $(YACCCOMPILE)
+
+clean:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-rm -f grammar.c
+	-rm -f grammar.h
+	-rm -f scanner.c
+	-test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+
+distclean: clean distclean-compile
+
+.MAKE: all
+
+.PHONY: all clean \
+	distclean \
+	distclean-compile
+
diff --git a/3rdparty/libconfig/extra/gen/grammar.y b/3rdparty/libconfig/extra/gen/grammar.y
new file mode 100644
index 000000000..f578897cb
--- /dev/null
+++ b/3rdparty/libconfig/extra/gen/grammar.y
@@ -0,0 +1,395 @@
+/* -*- mode: C -*- */
+/* ----------------------------------------------------------------------------
+   libconfig - A library for processing structured configuration files
+   Copyright (C) 2005-2010  Mark A Lindner
+
+   This file is part of libconfig.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public License
+   as published by the Free Software Foundation; either version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not, see
+   <http://www.gnu.org/licenses/>.
+   ----------------------------------------------------------------------------
+*/
+
+%defines
+%output="y.tab.c"
+%pure-parser
+%lex-param{void *scanner}
+%parse-param{void *scanner}
+%parse-param{struct parse_context *ctx}
+%parse-param{struct scan_context *scan_ctx}
+
+%{
+#include <string.h>
+#include <stdlib.h>
+#include "libconfig.h"
+#ifdef WIN32
+#include "wincompat.h"
+
+/* prevent warnings about redefined malloc/free in generated code: */
+#ifndef _STDLIB_H
+#define _STDLIB_H
+#endif
+
+#include <malloc.h>
+#endif
+#include "parsectx.h"
+#include "scanctx.h"
+
+/* these delcarations are provided to suppress compiler warnings */
+extern int libconfig_yylex();
+extern int libconfig_yyget_lineno();
+
+static const char *err_array_elem_type = "mismatched element type in array";
+static const char *err_duplicate_setting = "duplicate setting name";
+
+#define _delete(P) free((void *)(P))
+
+#define IN_ARRAY() \
+  (ctx->parent && (ctx->parent->type == CONFIG_TYPE_ARRAY))
+
+#define IN_LIST() \
+  (ctx->parent && (ctx->parent->type == CONFIG_TYPE_LIST))
+
+static void capture_parse_pos(void *scanner, struct scan_context *scan_ctx,
+                              config_setting_t *setting)
+{
+  setting->line = (unsigned int)libconfig_yyget_lineno(scanner);
+  setting->file = scanctx_current_filename(scan_ctx);
+}
+
+#define CAPTURE_PARSE_POS(S) \
+  capture_parse_pos(scanner, scan_ctx, (S))
+
+void libconfig_yyerror(void *scanner, struct parse_context *ctx,
+                       struct scan_context *scan_ctx, char const *s)
+{
+  if(ctx->config->error_text) return;
+  ctx->config->error_line = libconfig_yyget_lineno(scanner);
+  ctx->config->error_text = s;
+}
+
+%}
+
+%union
+{
+  int ival;
+  long long llval;
+  double fval;
+  char *sval;
+}
+
+%token <ival> TOK_BOOLEAN TOK_INTEGER TOK_HEX
+%token <llval> TOK_INTEGER64 TOK_HEX64
+%token <fval> TOK_FLOAT
+%token <sval> TOK_STRING TOK_NAME
+%token TOK_EQUALS TOK_NEWLINE TOK_ARRAY_START TOK_ARRAY_END TOK_LIST_START TOK_LIST_END TOK_COMMA TOK_GROUP_START TOK_GROUP_END TOK_SEMICOLON TOK_GARBAGE TOK_ERROR
+
+%%
+
+configuration:
+    /* empty */
+  | setting_list
+  ;
+
+setting_list:
+    setting
+  | setting_list setting
+  ;
+
+setting_list_optional:
+    /* empty */
+  | setting_list
+  ;
+
+setting_terminator:
+    /* empty */
+  | TOK_SEMICOLON
+  | TOK_COMMA
+  ;
+
+setting:
+  TOK_NAME
+  {
+    ctx->setting = config_setting_add(ctx->parent, $1, CONFIG_TYPE_NONE);
+
+    if(ctx->setting == NULL)
+    {
+      libconfig_yyerror(scanner, ctx, scan_ctx, err_duplicate_setting);
+      YYABORT;
+    }
+    else
+    {
+      CAPTURE_PARSE_POS(ctx->setting);
+    }
+  }
+
+  TOK_EQUALS value setting_terminator
+  ;
+
+array:
+  TOK_ARRAY_START
+  {
+    if(IN_LIST())
+    {
+      ctx->parent = config_setting_add(ctx->parent, NULL, CONFIG_TYPE_ARRAY);
+      CAPTURE_PARSE_POS(ctx->parent);
+    }
+    else
+    {
+      ctx->setting->type = CONFIG_TYPE_ARRAY;
+      ctx->parent = ctx->setting;
+      ctx->setting = NULL;
+    }
+  }
+  simple_value_list_optional
+  TOK_ARRAY_END
+  {
+    if(ctx->parent)
+      ctx->parent = ctx->parent->parent;
+  }
+  ;
+
+list:
+  TOK_LIST_START
+  {
+    if(IN_LIST())
+    {
+      ctx->parent = config_setting_add(ctx->parent, NULL, CONFIG_TYPE_LIST);
+      CAPTURE_PARSE_POS(ctx->parent);
+    }
+    else
+    {
+      ctx->setting->type = CONFIG_TYPE_LIST;
+      ctx->parent = ctx->setting;
+      ctx->setting = NULL;
+    }
+  }
+  value_list_optional
+  TOK_LIST_END
+  {
+    if(ctx->parent)
+      ctx->parent = ctx->parent->parent;
+  }
+  ;
+
+value:
+    simple_value
+  | array
+  | list
+  | group
+  ;
+
+string:
+  TOK_STRING { parsectx_append_string(ctx, $1); free($1); }
+  | string TOK_STRING { parsectx_append_string(ctx, $2); free($2); }
+  ;
+
+simple_value:
+    TOK_BOOLEAN
+  {
+    if(IN_ARRAY() || IN_LIST())
+    {
+      config_setting_t *e = config_setting_set_bool_elem(ctx->parent, -1,
+                                                         (int)$1);
+
+      if(! e)
+      {
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
+        YYABORT;
+      }
+      else
+      {
+        CAPTURE_PARSE_POS(e);
+      }
+    }
+    else
+      config_setting_set_bool(ctx->setting, (int)$1);
+  }
+  | TOK_INTEGER
+  {
+    if(IN_ARRAY() || IN_LIST())
+    {
+      config_setting_t *e = config_setting_set_int_elem(ctx->parent, -1, $1);
+      if(! e)
+      {
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
+        YYABORT;
+      }
+      else
+      {
+        config_setting_set_format(e, CONFIG_FORMAT_DEFAULT);
+        CAPTURE_PARSE_POS(e);
+      }
+    }
+    else
+    {
+      config_setting_set_int(ctx->setting, $1);
+      config_setting_set_format(ctx->setting, CONFIG_FORMAT_DEFAULT);
+    }
+  }
+  | TOK_INTEGER64
+  {
+    if(IN_ARRAY() || IN_LIST())
+    {
+      config_setting_t *e = config_setting_set_int64_elem(ctx->parent, -1, $1);
+      if(! e)
+      {
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
+        YYABORT;
+      }
+      else
+      {
+        config_setting_set_format(e, CONFIG_FORMAT_DEFAULT);
+        CAPTURE_PARSE_POS(e);
+      }
+    }
+    else
+    {
+      config_setting_set_int64(ctx->setting, $1);
+      config_setting_set_format(ctx->setting, CONFIG_FORMAT_DEFAULT);
+    }
+  }
+  | TOK_HEX
+  {
+    if(IN_ARRAY() || IN_LIST())
+    {
+      config_setting_t *e = config_setting_set_int_elem(ctx->parent, -1, $1);
+      if(! e)
+      {
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
+        YYABORT;
+      }
+      else
+      {
+        config_setting_set_format(e, CONFIG_FORMAT_HEX);
+        CAPTURE_PARSE_POS(e);
+      }
+    }
+    else
+    {
+      config_setting_set_int(ctx->setting, $1);
+      config_setting_set_format(ctx->setting, CONFIG_FORMAT_HEX);
+    }
+  }
+  | TOK_HEX64
+  {
+    if(IN_ARRAY() || IN_LIST())
+    {
+      config_setting_t *e = config_setting_set_int64_elem(ctx->parent, -1, $1);
+      if(! e)
+      {
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
+        YYABORT;
+      }
+      else
+      {
+        config_setting_set_format(e, CONFIG_FORMAT_HEX);
+        CAPTURE_PARSE_POS(e);
+      }
+    }
+    else
+    {
+      config_setting_set_int64(ctx->setting, $1);
+      config_setting_set_format(ctx->setting, CONFIG_FORMAT_HEX);
+    }
+  }
+  | TOK_FLOAT
+  {
+    if(IN_ARRAY() || IN_LIST())
+    {
+      config_setting_t *e = config_setting_set_float_elem(ctx->parent, -1, $1);
+      if(! e)
+      {
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
+        YYABORT;
+      }
+      else
+      {
+        CAPTURE_PARSE_POS(e);
+      }
+    }
+    else
+      config_setting_set_float(ctx->setting, $1);
+  }
+  | string
+  {
+    if(IN_ARRAY() || IN_LIST())
+    {
+      const char *s = parsectx_take_string(ctx);
+      config_setting_t *e = config_setting_set_string_elem(ctx->parent, -1, s);
+      _delete(s);
+
+      if(! e)
+      {
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
+        YYABORT;
+      }
+      else
+      {
+        CAPTURE_PARSE_POS(e);
+      }
+    }
+    else
+    {
+      const char *s = parsectx_take_string(ctx);
+      config_setting_set_string(ctx->setting, s);
+      _delete(s);
+    }
+  }
+  ;
+
+value_list:
+    value
+  | value_list TOK_COMMA value
+  ;
+
+value_list_optional:
+    /* empty */
+  | value_list
+  ;
+
+simple_value_list:
+    simple_value
+  | simple_value_list TOK_COMMA simple_value
+  ;
+
+simple_value_list_optional:
+    /* empty */
+  | simple_value_list
+  ;
+
+group:
+  TOK_GROUP_START
+  {
+    if(IN_LIST())
+    {
+      ctx->parent = config_setting_add(ctx->parent, NULL, CONFIG_TYPE_GROUP);
+      CAPTURE_PARSE_POS(ctx->parent);
+    }
+    else
+    {
+      ctx->setting->type = CONFIG_TYPE_GROUP;
+      ctx->parent = ctx->setting;
+      ctx->setting = NULL;
+    }
+  }
+  setting_list_optional
+  TOK_GROUP_END
+  {
+    if(ctx->parent)
+      ctx->parent = ctx->parent->parent;
+  }
+  ;
+
+%%
diff --git a/3rdparty/libconfig/extra/gen/scanner.l b/3rdparty/libconfig/extra/gen/scanner.l
new file mode 100644
index 000000000..bdc57a8d4
--- /dev/null
+++ b/3rdparty/libconfig/extra/gen/scanner.l
@@ -0,0 +1,196 @@
+/* -*- mode: C -*- */
+/* --------------------------------------------------------------------------
+   libconfig - A library for processing structured configuration files
+   Copyright (C) 2005-2010  Mark A Lindner
+
+   This file is part of libconfig.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public License
+   as published by the Free Software Foundation; either version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not, see
+   <http://www.gnu.org/licenses/>.
+   ----------------------------------------------------------------------------
+*/
+
+%option nounistd
+%option reentrant
+%option noyywrap
+%option yylineno
+%option nounput
+%option bison-bridge
+%option never-interactive
+%option header-file="scanner.h"
+%option outfile="lex.yy.c"
+%option extra-type="struct scan_context *"
+
+%top{
+#include "scanctx.h"
+}
+
+%{
+#ifdef _MSC_VER
+#pragma warning (disable: 4996)
+/* disable MSVC warning "signed/unsigned mismatch" associated with code generated by flex versions such as 2.5.35. */
+#pragma warning (disable:4018)
+#endif
+
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include "grammar.h"
+#include "wincompat.h"
+#include "parsectx.h"
+
+#define YY_NO_INPUT // Suppress generation of useless input() function
+
+static unsigned long long fromhex(const char *s)
+{
+#ifdef __MINGW32__
+
+  /* MinGW's strtoull() seems to be broken; it only returns the lower
+   * 32 bits...
+   */
+
+  const char *p = s;
+  unsigned long long val = 0;
+
+  if(*p != '0')
+    return(0);
+
+  ++p;
+
+  if(*p != 'x' && *p != 'X')
+    return(0);
+
+  for(++p; isxdigit(*p); ++p)
+  {
+    val <<= 4;
+    val |= ((*p < 'A') ? (*p & 0xF) : (9 + (*p & 0x7)));
+  }
+
+  return(val);
+
+#else /* ! __MINGW32__ */
+
+  return(strtoull(s, NULL, 16));
+
+#endif /* __MINGW32__ */
+}
+
+%}
+
+true              [Tt][Rr][Uu][Ee]
+false             [Ff][Aa][Ll][Ss][Ee]
+name              [A-Za-z\*][-A-Za-z0-9_\*']*
+integer           [-+]?[0-9]+
+integer64         [-+]?[0-9]+L(L)?
+hex               0[Xx][0-9A-Fa-f]+
+hex64             0[Xx][0-9A-Fa-f]+L(L)?
+hexchar           \\[Xx][0-9A-Fa-f]{2}
+float             ([-+]?([0-9]*)?\.[0-9]*([eE][-+]?[0-9]+)?)|([-+]?([0-9]+)(\.[0-9]*)?[eE][-+]?[0-9]+)
+comment           (#|\/\/).*$
+include_open      ^[ \t]*@include[ \t]+\"
+
+%x COMMENT STRING INCLUDE
+
+%%
+
+\/\*              { BEGIN COMMENT; }
+<COMMENT>\*\/     { BEGIN INITIAL; }
+<COMMENT>.        { /* ignore */ }
+<COMMENT>\n       { /* ignore */ }
+
+\"                { BEGIN STRING; }
+<STRING>[^\"\\]+  { scanctx_append_string(yyextra, yytext); }
+<STRING>\\n       { scanctx_append_string(yyextra, "\n"); }
+<STRING>\\r       { scanctx_append_string(yyextra, "\r"); }
+<STRING>\\t       { scanctx_append_string(yyextra, "\t"); }
+<STRING>\\f       { scanctx_append_string(yyextra, "\f"); }
+<STRING>\\\\      { scanctx_append_string(yyextra, "\\"); }
+<STRING>\\\"      { scanctx_append_string(yyextra, "\""); }
+<STRING>{hexchar} {
+                    char c[2] = { (char)(strtol(yytext + 2, NULL, 16) & 0xFF),
+                                  0 };
+                    scanctx_append_string(yyextra, c);
+                  }
+<STRING>\\        { scanctx_append_string(yyextra, "\\"); }
+<STRING>\"        {
+                    yylval->sval = scanctx_take_string(yyextra);
+                    BEGIN INITIAL;
+                    return(TOK_STRING);
+                  }
+
+{include_open}    { BEGIN INCLUDE; }
+<INCLUDE>[^\"\\]+ { scanctx_append_string(yyextra, yytext); }
+<INCLUDE>\\\\     { scanctx_append_string(yyextra, "\\"); }
+<INCLUDE>\\\"     { scanctx_append_string(yyextra, "\""); }
+<INCLUDE>\"       {
+                    const char *error;
+                    FILE *fp = scanctx_push_include(yyextra,
+                                                    (void *)YY_CURRENT_BUFFER,
+                                                    &error);
+                    if(fp)
+                    {
+                      yyin = fp;
+                      yy_switch_to_buffer(
+                        yy_create_buffer(yyin, YY_BUF_SIZE, yyscanner),
+                        yyscanner);
+                    }
+                    else
+                    {
+                      yyextra->config->error_text = error;
+                      yyextra->config->error_file = scanctx_current_filename(
+                        yyextra);
+                      yyextra->config->error_line = libconfig_yyget_lineno(
+                        yyscanner);
+                      return TOK_ERROR;
+                    }
+                    BEGIN INITIAL;
+                  }
+
+\n|\r|\f          { /* ignore */ }
+[ \t]+            { /* ignore */ }
+
+\=|\:             { return(TOK_EQUALS); }
+,                 { return(TOK_COMMA); }
+\{                { return(TOK_GROUP_START); }
+\}                { return(TOK_GROUP_END); }
+{true}            { yylval->ival = 1; return(TOK_BOOLEAN); }
+{false}           { yylval->ival = 0; return(TOK_BOOLEAN); }
+{name}            { yylval->sval = yytext; return(TOK_NAME); }
+{float}           { yylval->fval = atof(yytext); return(TOK_FLOAT); }
+{integer}         { yylval->ival = atoi(yytext); return(TOK_INTEGER); }
+{integer64}       { yylval->llval = atoll(yytext); return(TOK_INTEGER64); }
+{hex}             {
+                    yylval->ival = strtoul(yytext, NULL, 16);
+                    return(TOK_HEX);
+                  }
+{hex64}           { yylval->llval = fromhex(yytext); return(TOK_HEX64); }
+\[                { return(TOK_ARRAY_START); }
+\]                { return(TOK_ARRAY_END); }
+\(                { return(TOK_LIST_START); }
+\)                { return(TOK_LIST_END); }
+;                 { return(TOK_SEMICOLON); }
+{comment}         { /* ignore */ }
+.                 { return(TOK_GARBAGE); }
+
+<<EOF>>           {
+                    YY_BUFFER_STATE buf = (YY_BUFFER_STATE)scanctx_pop_include(
+                      yyextra);
+                    if(buf)
+                    {
+                      yy_delete_buffer(YY_CURRENT_BUFFER, yyscanner);
+                      yy_switch_to_buffer(buf, yyscanner);
+                    }
+                    else
+                      yyterminate();
+                  }
diff --git a/3rdparty/libconfig/grammar.c b/3rdparty/libconfig/grammar.c
index e95a569f6..0331c1854 100644
--- a/3rdparty/libconfig/grammar.c
+++ b/3rdparty/libconfig/grammar.c
@@ -1,10 +1,9 @@
-
-/* A Bison parser, made by GNU Bison 2.4.1.  */
+/* A Bison parser, made by GNU Bison 2.4.3.  */
 
 /* Skeleton implementation for Bison's Yacc-like parsers in C
    
-      Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
-   Free Software Foundation, Inc.
+      Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+   2009, 2010 Free Software Foundation, Inc.
    
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -46,7 +45,7 @@
 #define YYBISON 1
 
 /* Bison version.  */
-#define YYBISON_VERSION "2.4.1"
+#define YYBISON_VERSION "2.4.3"
 
 /* Skeleton name.  */
 #define YYSKELETON_NAME "yacc.c"
@@ -130,7 +129,7 @@ void libconfig_yyerror(void *scanner, struct parse_context *ctx,
 
 
 /* Line 189 of yacc.c  */
-#line 134 "grammar.c"
+#line 133 "grammar.c"
 
 /* Enabling traces.  */
 #ifndef YYDEBUG
@@ -219,7 +218,7 @@ typedef union YYSTYPE
 
 
 /* Line 214 of yacc.c  */
-#line 223 "grammar.c"
+#line 222 "grammar.c"
 } YYSTYPE;
 # define YYSTYPE_IS_TRIVIAL 1
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
@@ -231,7 +230,7 @@ typedef union YYSTYPE
 
 
 /* Line 264 of yacc.c  */
-#line 235 "grammar.c"
+#line 234 "grammar.c"
 
 #ifdef short
 # undef short
@@ -281,7 +280,7 @@ typedef short int yytype_int16;
 #define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
 
 #ifndef YY_
-# if YYENABLE_NLS
+# if defined YYENABLE_NLS && YYENABLE_NLS
 #  if ENABLE_NLS
 #   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
 #   define YY_(msgid) dgettext ("bison-runtime", msgid)
@@ -660,9 +659,18 @@ static const yytype_uint8 yystos[] =
 
 /* Like YYERROR except do call yyerror.  This remains here temporarily
    to ease the transition to the new meaning of YYERROR, for GCC.
-   Once GCC version 2 has supplanted version 1, this can go.  */
+   Once GCC version 2 has supplanted version 1, this can go.  However,
+   YYFAIL appears to be in use.  Nevertheless, it is formally deprecated
+   in Bison 2.4.2's NEWS entry, where a plan to phase it out is
+   discussed.  */
 
 #define YYFAIL		goto yyerrlab
+#if defined YYFAIL
+  /* This is here to suppress warnings from the GCC cpp's
+     -Wunused-macros.  Normally we don't worry about that warning, but
+     some users do, and we want to make it easy for users to remove
+     YYFAIL uses, which will produce warnings from Bison 2.5.  */
+#endif
 
 #define YYRECOVERING()  (!!yyerrstatus)
 
@@ -719,7 +727,7 @@ while (YYID (0))
    we won't break user code: when these are the locations we know.  */
 
 #ifndef YY_LOCATION_PRINT
-# if YYLTYPE_IS_TRIVIAL
+# if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
 #  define YY_LOCATION_PRINT(File, Loc)			\
      fprintf (File, "%d.%d-%d.%d",			\
 	      (Loc).first_line, (Loc).first_column,	\
@@ -1477,7 +1485,7 @@ yyreduce:
     {
         case 11:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 123 "grammar.y"
     {
     ctx->setting = config_setting_add(ctx->parent, (yyvsp[(1) - (1)].sval), CONFIG_TYPE_NONE);
@@ -1496,7 +1504,7 @@ yyreduce:
 
   case 13:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 142 "grammar.y"
     {
     if(IN_LIST())
@@ -1515,7 +1523,7 @@ yyreduce:
 
   case 14:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 157 "grammar.y"
     {
     if(ctx->parent)
@@ -1525,7 +1533,7 @@ yyreduce:
 
   case 15:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 165 "grammar.y"
     {
     if(IN_LIST())
@@ -1544,7 +1552,7 @@ yyreduce:
 
   case 16:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 180 "grammar.y"
     {
     if(ctx->parent)
@@ -1554,21 +1562,21 @@ yyreduce:
 
   case 21:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 194 "grammar.y"
     { parsectx_append_string(ctx, (yyvsp[(1) - (1)].sval)); free((yyvsp[(1) - (1)].sval)); }
     break;
 
   case 22:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 195 "grammar.y"
     { parsectx_append_string(ctx, (yyvsp[(2) - (2)].sval)); free((yyvsp[(2) - (2)].sval)); }
     break;
 
   case 23:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 200 "grammar.y"
     {
     if(IN_ARRAY() || IN_LIST())
@@ -1593,7 +1601,7 @@ yyreduce:
 
   case 24:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 220 "grammar.y"
     {
     if(IN_ARRAY() || IN_LIST())
@@ -1620,7 +1628,7 @@ yyreduce:
 
   case 25:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 242 "grammar.y"
     {
     if(IN_ARRAY() || IN_LIST())
@@ -1647,7 +1655,7 @@ yyreduce:
 
   case 26:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 264 "grammar.y"
     {
     if(IN_ARRAY() || IN_LIST())
@@ -1674,7 +1682,7 @@ yyreduce:
 
   case 27:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 286 "grammar.y"
     {
     if(IN_ARRAY() || IN_LIST())
@@ -1701,7 +1709,7 @@ yyreduce:
 
   case 28:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 308 "grammar.y"
     {
     if(IN_ARRAY() || IN_LIST())
@@ -1724,7 +1732,7 @@ yyreduce:
 
   case 29:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 326 "grammar.y"
     {
     if(IN_ARRAY() || IN_LIST())
@@ -1754,7 +1762,7 @@ yyreduce:
 
   case 38:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 374 "grammar.y"
     {
     if(IN_LIST())
@@ -1773,7 +1781,7 @@ yyreduce:
 
   case 39:
 
-/* Line 1455 of yacc.c  */
+/* Line 1464 of yacc.c  */
 #line 389 "grammar.y"
     {
     if(ctx->parent)
@@ -1783,8 +1791,8 @@ yyreduce:
 
 
 
-/* Line 1455 of yacc.c  */
-#line 1788 "grammar.c"
+/* Line 1464 of yacc.c  */
+#line 1796 "grammar.c"
       default: break;
     }
   YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
@@ -1995,7 +2003,7 @@ yyreturn:
 
 
 
-/* Line 1675 of yacc.c  */
+/* Line 1684 of yacc.c  */
 #line 395 "grammar.y"
 
 
diff --git a/3rdparty/libconfig/grammar.h b/3rdparty/libconfig/grammar.h
index 2ce199dde..7da95471c 100644
--- a/3rdparty/libconfig/grammar.h
+++ b/3rdparty/libconfig/grammar.h
@@ -1,10 +1,9 @@
-
-/* A Bison parser, made by GNU Bison 2.4.1.  */
+/* A Bison parser, made by GNU Bison 2.4.3.  */
 
 /* Skeleton interface for Bison's Yacc-like parsers in C
    
-      Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
-   Free Software Foundation, Inc.
+      Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+   2009, 2010 Free Software Foundation, Inc.
    
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -90,7 +89,7 @@
 typedef union YYSTYPE
 {
 
-/* Line 1676 of yacc.c  */
+/* Line 1685 of yacc.c  */
 #line 85 "grammar.y"
 
   int ival;
@@ -100,8 +99,8 @@ typedef union YYSTYPE
 
 
 
-/* Line 1676 of yacc.c  */
-#line 105 "grammar.h"
+/* Line 1685 of yacc.c  */
+#line 104 "grammar.h"
 } YYSTYPE;
 # define YYSTYPE_IS_TRIVIAL 1
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
diff --git a/3rdparty/libconfig/scanner.c b/3rdparty/libconfig/scanner.c
index 3d4d14da0..55e029f9f 100644
--- a/3rdparty/libconfig/scanner.c
+++ b/3rdparty/libconfig/scanner.c
@@ -1,6 +1,10 @@
 #line 2 "scanner.c"
+#line 36 "scanner.l"
+#include "scanctx.h"
+
+
 
-#line 4 "scanner.c"
+#line 8 "scanner.c"
 
 #define  YY_INT_ALIGNED short int
 
@@ -9,7 +13,7 @@
 #define FLEX_SCANNER
 #define YY_FLEX_MAJOR_VERSION 2
 #define YY_FLEX_MINOR_VERSION 5
-#define YY_FLEX_SUBMINOR_VERSION 35
+#define YY_FLEX_SUBMINOR_VERSION 37
 #if YY_FLEX_SUBMINOR_VERSION > 0
 #define FLEX_BETA
 #endif
@@ -159,15 +163,7 @@ typedef void* yyscan_t;
 
 /* Size of default input buffer. */
 #ifndef YY_BUF_SIZE
-#ifdef __ia64__
-/* On IA-64, the buffer size is 16k, not 8k.
- * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
- * Ditto for the __ia64__ case accordingly.
- */
-#define YY_BUF_SIZE 32768
-#else
 #define YY_BUF_SIZE 16384
-#endif /* __ia64__ */
 #endif
 
 /* The state buf must be large enough to hold one state per character in the main buffer.
@@ -179,6 +175,11 @@ typedef void* yyscan_t;
 typedef struct yy_buffer_state *YY_BUFFER_STATE;
 #endif
 
+#ifndef YY_TYPEDEF_YY_SIZE_T
+#define YY_TYPEDEF_YY_SIZE_T
+typedef size_t yy_size_t;
+#endif
+
 #define EOB_ACT_CONTINUE_SCAN 0
 #define EOB_ACT_END_OF_FILE 1
 #define EOB_ACT_LAST_MATCH 2
@@ -214,11 +215,6 @@ typedef struct yy_buffer_state *YY_BUFFER_STATE;
 
 #define unput(c) yyunput( c, yyg->yytext_ptr , yyscanner )
 
-#ifndef YY_TYPEDEF_YY_SIZE_T
-#define YY_TYPEDEF_YY_SIZE_T
-typedef size_t yy_size_t;
-#endif
-
 #ifndef YY_STRUCT_YY_BUFFER_STATE
 #define YY_STRUCT_YY_BUFFER_STATE
 struct yy_buffer_state
@@ -236,7 +232,7 @@ struct yy_buffer_state
 	/* Number of characters read into yy_ch_buf, not including EOB
 	 * characters.
 	 */
-	int yy_n_chars;
+	yy_size_t yy_n_chars;
 
 	/* Whether we "own" the buffer - i.e., we know we created it,
 	 * and can realloc() it to grow it, and should free() it to
@@ -315,7 +311,7 @@ static void libconfig_yy_init_buffer (YY_BUFFER_STATE b,FILE *file ,yyscan_t yys
 
 YY_BUFFER_STATE libconfig_yy_scan_buffer (char *base,yy_size_t size ,yyscan_t yyscanner );
 YY_BUFFER_STATE libconfig_yy_scan_string (yyconst char *yy_str ,yyscan_t yyscanner );
-YY_BUFFER_STATE libconfig_yy_scan_bytes (yyconst char *bytes,int len ,yyscan_t yyscanner );
+YY_BUFFER_STATE libconfig_yy_scan_bytes (yyconst char *bytes,yy_size_t len ,yyscan_t yyscanner );
 
 void *libconfig_yyalloc (yy_size_t ,yyscan_t yyscanner );
 void *libconfig_yyrealloc (void *,yy_size_t ,yyscan_t yyscanner );
@@ -345,7 +341,7 @@ void libconfig_yyfree (void * ,yyscan_t yyscanner );
 
 #define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
 
-#define libconfig_yywrap(n) 1
+#define libconfig_yywrap(yyscanner) 1
 #define YY_SKIP_YYWRAP
 
 typedef unsigned char YY_CHAR;
@@ -399,17 +395,17 @@ static yyconst flex_int32_t yy_ec[256] =
         1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
         1,    4,    5,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    2,    1,    6,    7,    1,    1,    1,   26,    8,
-        9,   10,   11,   12,   13,   14,   15,   16,   17,   17,
-       17,   17,   17,   17,   17,   17,   17,   18,   19,    1,
-       20,    1,    1,   21,   22,   23,   23,   23,   24,   25,
-       26,   26,   26,   26,   26,   27,   26,   26,   26,   26,
-       26,   28,   29,   30,   31,   26,   26,   32,   26,   26,
-       33,   34,   35,    1,   36,    1,   22,   23,   37,   38,
-
-       39,   40,   26,   26,   41,   26,   26,   42,   26,   43,
-       26,   26,   26,   44,   29,   45,   46,   26,   26,   32,
-       26,   26,   47,    1,   48,    1,    1,    1,    1,    1,
+        1,    2,    1,    6,    7,    1,    1,    1,    8,    9,
+       10,   11,   12,   13,   14,   15,   16,   17,   18,   18,
+       18,   18,   18,   18,   18,   18,   18,   19,   20,    1,
+       21,    1,    1,   22,   23,   24,   24,   24,   25,   26,
+       27,   27,   27,   27,   27,   28,   27,   27,   27,   27,
+       27,   29,   30,   31,   32,   27,   27,   33,   27,   27,
+       34,   35,   36,    1,    8,    1,   23,   24,   37,   38,
+
+       39,   40,   27,   27,   41,   27,   27,   42,   27,   43,
+       27,   27,   27,   44,   30,   45,   46,   27,   27,   33,
+       27,   27,   47,    1,   48,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
@@ -428,10 +424,10 @@ static yyconst flex_int32_t yy_ec[256] =
 
 static yyconst flex_int32_t yy_meta[49] =
     {   0,
-        1,    1,    1,    1,    1,    2,    1,    1,    1,    3,
-        1,    1,    3,    1,    1,    4,    4,    1,    1,    1,
-        1,    4,    4,    4,    4,    3,    3,    3,    3,    3,
-        3,    3,    1,    2,    1,    3,    4,    4,    4,    4,
+        1,    1,    1,    1,    1,    2,    1,    3,    1,    1,
+        3,    1,    1,    3,    1,    1,    4,    4,    1,    1,
+        1,    1,    4,    4,    4,    4,    3,    3,    3,    3,
+        3,    3,    3,    1,    2,    1,    4,    4,    4,    4,
         3,    3,    3,    3,    3,    3,    1,    1
     } ;
 
@@ -439,17 +435,17 @@ static yyconst flex_int16_t yy_base[113] =
     {   0,
         0,   47,   47,   48,   46,   47,   48,   49,  203,  204,
       200,  204,  204,  204,  198,  204,  204,    0,   45,  204,
-       47,   50,   60,   74,  204,  204,  178,   28,  204,  204,
-      204,  204,   64,  158,  204,  204,  183,    0,  204,   63,
-        0,  204,   83,  195,  193,  204,    0,   88,  102,   98,
-       62,  204,  190,  104,  119,  162,    0,   67,   65,  121,
-      127,  124,  204,    0,  204,    0,  204,  204,  204,  204,
-      204,    0,  204,  204,  108,  117,  122,  134,  132,  136,
-      204,  139,  136,  116,  126,    0,  140,  142,  135,  130,
-        0,  102,  204,  204,    0,   85,   72,   63,   98,  158,
-
-      204,  204,  169,  173,  177,  181,  183,  187,  191,   89,
-       66,   63
+       39,   50,   62,   71,  204,  204,  177,   41,  204,  204,
+      204,  204,   69,  158,  204,  204,  182,    0,  204,   69,
+        0,  204,   59,  195,  193,  204,    0,   80,  100,  104,
+      118,  204,  192,  106,  130,  166,    0,   64,   61,   98,
+      152,  149,  204,    0,  204,    0,  204,  204,  204,  204,
+      204,    0,  204,  204,   50,   55,  116,  139,  109,  120,
+      204,  161,  155,  115,  127,    0,  132,  141,  135,  121,
+        0,  120,  204,  204,    0,  106,   78,   72,  106,  159,
+
+      204,  204,  165,  169,  173,  177,  179,  183,  187,   99,
+       72,   70
     } ;
 
 static yyconst flex_int16_t yy_def[113] =
@@ -471,27 +467,27 @@ static yyconst flex_int16_t yy_def[113] =
 
 static yyconst flex_int16_t yy_nxt[253] =
     {   0,
-       10,   11,   12,   13,   13,   14,   15,   16,   17,   18,
-       19,   20,   19,   21,   22,   23,   24,   25,   26,   25,
-       10,   18,   18,   18,   27,   18,   18,   18,   18,   28,
-       18,   18,   29,   10,   30,   10,   18,   18,   18,   27,
+       10,   11,   12,   13,   13,   14,   15,   10,   16,   17,
+       18,   19,   20,   19,   21,   22,   23,   24,   25,   26,
+       25,   10,   18,   18,   18,   27,   18,   18,   18,   18,
+       28,   18,   18,   29,   10,   30,   18,   18,   18,   27,
        18,   18,   18,   18,   28,   18,   31,   32,   33,   36,
-       36,   39,   39,   42,   42,   59,   37,   37,   48,   52,
-       49,   49,   50,   50,   53,   60,   93,   34,   65,   86,
-       51,   59,   75,   54,   75,   49,   49,   76,   76,   40,
-       40,   43,   43,   55,   61,   51,   56,   54,   73,   49,
-       49,   57,   82,   83,   66,   84,   67,   55,   55,  100,
-
-       56,   99,   68,   50,   50,   69,   70,   71,   83,   98,
-       84,   51,   55,   50,   50,   54,   74,   49,   49,   77,
-       77,   51,   60,   76,   76,   55,   51,   78,   56,   79,
-       97,   79,   76,   76,   80,   80,   51,   77,   77,   91,
-       55,   61,   78,   96,   87,   78,   87,   80,   80,   88,
-       88,   80,   80,   95,   91,   88,   88,   88,   88,  100,
-       78,   94,   92,  101,   90,   89,   85,   62,   95,   35,
-       35,   35,   35,   38,   38,   38,   38,   41,   41,   41,
-       41,   45,   45,   45,   45,   47,   47,   64,   81,   64,
-       64,   72,   46,   72,   72,   46,   44,   63,   62,   58,
+       36,   39,   39,   42,   42,   50,   50,   37,   37,   48,
+       52,   49,   49,   51,   73,   53,   76,   76,   34,   59,
+       60,   76,   76,   93,   65,   86,   54,   51,   49,   49,
+       40,   40,   43,   43,   59,   54,   55,   49,   49,   56,
+       61,   83,   84,   74,   57,   55,   50,   50,   56,   60,
+
+       55,   66,   82,   67,   51,   83,   84,  100,   68,   55,
+       99,   69,   70,   71,   54,   98,   49,   49,   51,   61,
+       50,   50,   77,   77,   55,   80,   80,   56,   51,   75,
+       78,   75,   77,   77,   76,   76,   80,   80,   55,   91,
+       78,   79,   51,   79,   78,   95,   80,   80,   88,   88,
+       87,   97,   87,   91,   78,   88,   88,   88,   88,   95,
+      100,   96,   94,   92,  101,   35,   35,   35,   35,   38,
+       38,   38,   38,   41,   41,   41,   41,   45,   45,   45,
+       45,   47,   47,   64,   90,   64,   64,   72,   89,   72,
+       72,   85,   62,   81,   46,   46,   44,   63,   62,   58,
 
        46,   44,  102,    9,  102,  102,  102,  102,  102,  102,
       102,  102,  102,  102,  102,  102,  102,  102,  102,  102,
@@ -508,22 +504,22 @@ static yyconst flex_int16_t yy_chk[253] =
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
-        4,    5,    6,    7,    8,   28,    3,    4,   19,   22,
-       19,   19,   21,   21,   22,   33,  112,    2,   40,  111,
-       21,   28,   51,   23,   51,   23,   23,   51,   51,    5,
-        6,    7,    8,   23,   33,   21,   23,   24,   43,   24,
-       24,   23,  110,   58,   40,   59,   40,   24,   23,   99,
-
-       24,   98,   40,   48,   48,   40,   40,   40,   58,   97,
-       59,   48,   24,   50,   50,   49,   43,   49,   49,   54,
-       54,   50,   60,   75,   75,   49,   48,   54,   49,   55,
-       96,   55,   76,   76,   55,   55,   50,   77,   77,   84,
-       49,   60,   54,   92,   78,   77,   78,   79,   79,   78,
-       78,   80,   80,   90,   84,   87,   87,   88,   88,  100,
-       77,   89,   85,  100,   83,   82,   62,   61,   90,  103,
-      103,  103,  103,  104,  104,  104,  104,  105,  105,  105,
-      105,  106,  106,  106,  106,  107,  107,  108,   56,  108,
-      108,  109,   53,  109,  109,   45,   44,   37,   34,   27,
+        4,    5,    6,    7,    8,   21,   21,    3,    4,   19,
+       22,   19,   19,   21,   43,   22,   75,   75,    2,   28,
+       33,   76,   76,  112,   40,  111,   23,   21,   23,   23,
+        5,    6,    7,    8,   28,   24,   23,   24,   24,   23,
+       33,   58,   59,   43,   23,   24,   48,   48,   24,   60,
+
+       23,   40,  110,   40,   48,   58,   59,   99,   40,   24,
+       98,   40,   40,   40,   49,   97,   49,   49,   48,   60,
+       50,   50,   54,   54,   49,   79,   79,   49,   50,   51,
+       54,   51,   77,   77,   51,   51,   80,   80,   49,   84,
+       77,   55,   50,   55,   54,   90,   55,   55,   87,   87,
+       78,   96,   78,   84,   77,   78,   78,   88,   88,   90,
+      100,   92,   89,   85,  100,  103,  103,  103,  103,  104,
+      104,  104,  104,  105,  105,  105,  105,  106,  106,  106,
+      106,  107,  107,  108,   83,  108,  108,  109,   82,  109,
+      109,   62,   61,   56,   53,   45,   44,   37,   34,   27,
 
        15,   11,    9,  102,  102,  102,  102,  102,  102,  102,
       102,  102,  102,  102,  102,  102,  102,  102,  102,  102,
@@ -571,10 +567,12 @@ static yyconst flex_int32_t yy_rule_can_match_eol[43] =
    ----------------------------------------------------------------------------
 */
 #define YY_NO_UNISTD_H 1
-#line 35 "scanner.l"
 
+#line 40 "scanner.l"
 #ifdef _MSC_VER
 #pragma warning (disable: 4996)
+/* disable MSVC warning "signed/unsigned mismatch" associated with code generated by flex versions such as 2.5.35. */
+#pragma warning (disable:4018)
 #endif
 
 #include <stdlib.h>
@@ -583,7 +581,6 @@ static yyconst flex_int32_t yy_rule_can_match_eol[43] =
 #include "grammar.h"
 #include "wincompat.h"
 #include "parsectx.h"
-#include "scanctx.h"
 
 #define YY_NO_INPUT // Suppress generation of useless input() function
 
@@ -622,21 +619,13 @@ static unsigned long long fromhex(const char *s)
 }
 
 
-#line 626 "scanner.c"
+#line 623 "scanner.c"
 
 #define INITIAL 0
 #define COMMENT 1
 #define STRING 2
 #define INCLUDE 3
 
-#ifndef YY_NO_UNISTD_H
-/* Special case for "unistd.h", since it is non-ANSI. We include it way
- * down here because we want the user's section 1 to have been scanned first.
- * The user has a chance to override it with an option.
- */
-#include <unistd.h>
-#endif
-
 #define YY_EXTRA_TYPE struct scan_context *
 
 /* Holds the entire state of the reentrant scanner. */
@@ -652,8 +641,8 @@ struct yyguts_t
     size_t yy_buffer_stack_max; /**< capacity of stack. */
     YY_BUFFER_STATE * yy_buffer_stack; /**< Stack as an array. */
     char yy_hold_char;
-    int yy_n_chars;
-    int yyleng_r;
+    yy_size_t yy_n_chars;
+    yy_size_t yyleng_r;
     char *yy_c_buf_p;
     int yy_init;
     int yy_start;
@@ -706,7 +695,7 @@ FILE *libconfig_yyget_out (yyscan_t yyscanner );
 
 void libconfig_yyset_out  (FILE * out_str ,yyscan_t yyscanner );
 
-int libconfig_yyget_leng (yyscan_t yyscanner );
+yy_size_t libconfig_yyget_leng (yyscan_t yyscanner );
 
 char *libconfig_yyget_text (yyscan_t yyscanner );
 
@@ -714,6 +703,10 @@ int libconfig_yyget_lineno (yyscan_t yyscanner );
 
 void libconfig_yyset_lineno (int line_number ,yyscan_t yyscanner );
 
+int libconfig_yyget_column  (yyscan_t yyscanner );
+
+void libconfig_yyset_column (int column_no ,yyscan_t yyscanner );
+
 YYSTYPE * libconfig_yyget_lval (yyscan_t yyscanner );
 
 void libconfig_yyset_lval (YYSTYPE * yylval_param ,yyscan_t yyscanner );
@@ -750,12 +743,7 @@ static int input (yyscan_t yyscanner );
 
 /* Amount of stuff to slurp up with each read. */
 #ifndef YY_READ_BUF_SIZE
-#ifdef __ia64__
-/* On IA-64, the buffer size is 16k, not 8k */
-#define YY_READ_BUF_SIZE 16384
-#else
 #define YY_READ_BUF_SIZE 8192
-#endif /* __ia64__ */
 #endif
 
 /* Copy whatever the last rule matched to the standard output. */
@@ -862,10 +850,10 @@ YY_DECL
 	register int yy_act;
     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
 
-#line 100 "scanner.l"
+#line 105 "scanner.l"
 
 
-#line 869 "scanner.c"
+#line 857 "scanner.c"
 
     yylval = yylval_param;
 
@@ -927,16 +915,12 @@ yy_match:
 			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
 			++yy_cp;
 			}
-		while ( yy_base[yy_current_state] != 204 );
+		while ( yy_current_state != 102 );
+		yy_cp = yyg->yy_last_accepting_cpos;
+		yy_current_state = yyg->yy_last_accepting_state;
 
 yy_find_action:
 		yy_act = yy_accept[yy_current_state];
-		if ( yy_act == 0 )
-			{ /* have to back up */
-			yy_cp = yyg->yy_last_accepting_cpos;
-			yy_current_state = yyg->yy_last_accepting_state;
-			yy_act = yy_accept[yy_current_state];
-			}
 
 		YY_DO_BEFORE_ACTION;
 
@@ -965,69 +949,69 @@ do_action:	/* This label is used only to access EOF actions. */
 
 case 1:
 YY_RULE_SETUP
-#line 102 "scanner.l"
+#line 107 "scanner.l"
 { BEGIN COMMENT; }
 	YY_BREAK
 case 2:
 YY_RULE_SETUP
-#line 103 "scanner.l"
+#line 108 "scanner.l"
 { BEGIN INITIAL; }
 	YY_BREAK
 case 3:
 YY_RULE_SETUP
-#line 104 "scanner.l"
+#line 109 "scanner.l"
 { /* ignore */ }
 	YY_BREAK
 case 4:
 /* rule 4 can match eol */
 YY_RULE_SETUP
-#line 105 "scanner.l"
+#line 110 "scanner.l"
 { /* ignore */ }
 	YY_BREAK
 case 5:
 YY_RULE_SETUP
-#line 107 "scanner.l"
+#line 112 "scanner.l"
 { BEGIN STRING; }
 	YY_BREAK
 case 6:
 /* rule 6 can match eol */
 YY_RULE_SETUP
-#line 108 "scanner.l"
+#line 113 "scanner.l"
 { scanctx_append_string(yyextra, yytext); }
 	YY_BREAK
 case 7:
 YY_RULE_SETUP
-#line 109 "scanner.l"
+#line 114 "scanner.l"
 { scanctx_append_string(yyextra, "\n"); }
 	YY_BREAK
 case 8:
 YY_RULE_SETUP
-#line 110 "scanner.l"
+#line 115 "scanner.l"
 { scanctx_append_string(yyextra, "\r"); }
 	YY_BREAK
 case 9:
 YY_RULE_SETUP
-#line 111 "scanner.l"
+#line 116 "scanner.l"
 { scanctx_append_string(yyextra, "\t"); }
 	YY_BREAK
 case 10:
 YY_RULE_SETUP
-#line 112 "scanner.l"
+#line 117 "scanner.l"
 { scanctx_append_string(yyextra, "\f"); }
 	YY_BREAK
 case 11:
 YY_RULE_SETUP
-#line 113 "scanner.l"
+#line 118 "scanner.l"
 { scanctx_append_string(yyextra, "\\"); }
 	YY_BREAK
 case 12:
 YY_RULE_SETUP
-#line 114 "scanner.l"
+#line 119 "scanner.l"
 { scanctx_append_string(yyextra, "\""); }
 	YY_BREAK
 case 13:
 YY_RULE_SETUP
-#line 115 "scanner.l"
+#line 120 "scanner.l"
 {
                     char c[2] = { (char)(strtol(yytext + 2, NULL, 16) & 0xFF),
                                   0 };
@@ -1036,12 +1020,12 @@ YY_RULE_SETUP
 	YY_BREAK
 case 14:
 YY_RULE_SETUP
-#line 120 "scanner.l"
+#line 125 "scanner.l"
 { scanctx_append_string(yyextra, "\\"); }
 	YY_BREAK
 case 15:
 YY_RULE_SETUP
-#line 121 "scanner.l"
+#line 126 "scanner.l"
 {
                     yylval->sval = scanctx_take_string(yyextra);
                     BEGIN INITIAL;
@@ -1050,28 +1034,28 @@ YY_RULE_SETUP
 	YY_BREAK
 case 16:
 YY_RULE_SETUP
-#line 127 "scanner.l"
+#line 132 "scanner.l"
 { BEGIN INCLUDE; }
 	YY_BREAK
 case 17:
 /* rule 17 can match eol */
 YY_RULE_SETUP
-#line 128 "scanner.l"
+#line 133 "scanner.l"
 { scanctx_append_string(yyextra, yytext); }
 	YY_BREAK
 case 18:
 YY_RULE_SETUP
-#line 129 "scanner.l"
+#line 134 "scanner.l"
 { scanctx_append_string(yyextra, "\\"); }
 	YY_BREAK
 case 19:
 YY_RULE_SETUP
-#line 130 "scanner.l"
+#line 135 "scanner.l"
 { scanctx_append_string(yyextra, "\""); }
 	YY_BREAK
 case 20:
 YY_RULE_SETUP
-#line 131 "scanner.l"
+#line 136 "scanner.l"
 {
                     const char *error;
                     FILE *fp = scanctx_push_include(yyextra,
@@ -1097,67 +1081,67 @@ YY_RULE_SETUP
 case 21:
 /* rule 21 can match eol */
 YY_RULE_SETUP
-#line 155 "scanner.l"
+#line 160 "scanner.l"
 { /* ignore */ }
 	YY_BREAK
 case 22:
 YY_RULE_SETUP
-#line 156 "scanner.l"
+#line 161 "scanner.l"
 { /* ignore */ }
 	YY_BREAK
 case 23:
 YY_RULE_SETUP
-#line 158 "scanner.l"
+#line 163 "scanner.l"
 { return(TOK_EQUALS); }
 	YY_BREAK
 case 24:
 YY_RULE_SETUP
-#line 159 "scanner.l"
+#line 164 "scanner.l"
 { return(TOK_COMMA); }
 	YY_BREAK
 case 25:
 YY_RULE_SETUP
-#line 160 "scanner.l"
+#line 165 "scanner.l"
 { return(TOK_GROUP_START); }
 	YY_BREAK
 case 26:
 YY_RULE_SETUP
-#line 161 "scanner.l"
+#line 166 "scanner.l"
 { return(TOK_GROUP_END); }
 	YY_BREAK
 case 27:
 YY_RULE_SETUP
-#line 162 "scanner.l"
+#line 167 "scanner.l"
 { yylval->ival = 1; return(TOK_BOOLEAN); }
 	YY_BREAK
 case 28:
 YY_RULE_SETUP
-#line 163 "scanner.l"
+#line 168 "scanner.l"
 { yylval->ival = 0; return(TOK_BOOLEAN); }
 	YY_BREAK
 case 29:
 YY_RULE_SETUP
-#line 164 "scanner.l"
+#line 169 "scanner.l"
 { yylval->sval = yytext; return(TOK_NAME); }
 	YY_BREAK
 case 30:
 YY_RULE_SETUP
-#line 165 "scanner.l"
+#line 170 "scanner.l"
 { yylval->fval = atof(yytext); return(TOK_FLOAT); }
 	YY_BREAK
 case 31:
 YY_RULE_SETUP
-#line 166 "scanner.l"
+#line 171 "scanner.l"
 { yylval->ival = atoi(yytext); return(TOK_INTEGER); }
 	YY_BREAK
 case 32:
 YY_RULE_SETUP
-#line 167 "scanner.l"
+#line 172 "scanner.l"
 { yylval->llval = atoll(yytext); return(TOK_INTEGER64); }
 	YY_BREAK
 case 33:
 YY_RULE_SETUP
-#line 168 "scanner.l"
+#line 173 "scanner.l"
 {
                     yylval->ival = strtoul(yytext, NULL, 16);
                     return(TOK_HEX);
@@ -1165,32 +1149,32 @@ YY_RULE_SETUP
 	YY_BREAK
 case 34:
 YY_RULE_SETUP
-#line 172 "scanner.l"
+#line 177 "scanner.l"
 { yylval->llval = fromhex(yytext); return(TOK_HEX64); }
 	YY_BREAK
 case 35:
 YY_RULE_SETUP
-#line 173 "scanner.l"
+#line 178 "scanner.l"
 { return(TOK_ARRAY_START); }
 	YY_BREAK
 case 36:
 YY_RULE_SETUP
-#line 174 "scanner.l"
+#line 179 "scanner.l"
 { return(TOK_ARRAY_END); }
 	YY_BREAK
 case 37:
 YY_RULE_SETUP
-#line 175 "scanner.l"
+#line 180 "scanner.l"
 { return(TOK_LIST_START); }
 	YY_BREAK
 case 38:
 YY_RULE_SETUP
-#line 176 "scanner.l"
+#line 181 "scanner.l"
 { return(TOK_LIST_END); }
 	YY_BREAK
 case 39:
 YY_RULE_SETUP
-#line 177 "scanner.l"
+#line 182 "scanner.l"
 { return(TOK_SEMICOLON); }
 	YY_BREAK
 case 40:
@@ -1198,19 +1182,19 @@ case 40:
 yyg->yy_c_buf_p = yy_cp -= 1;
 YY_DO_BEFORE_ACTION; /* set up yytext again */
 YY_RULE_SETUP
-#line 178 "scanner.l"
+#line 183 "scanner.l"
 { /* ignore */ }
 	YY_BREAK
 case 41:
 YY_RULE_SETUP
-#line 179 "scanner.l"
+#line 184 "scanner.l"
 { return(TOK_GARBAGE); }
 	YY_BREAK
 case YY_STATE_EOF(INITIAL):
 case YY_STATE_EOF(COMMENT):
 case YY_STATE_EOF(STRING):
 case YY_STATE_EOF(INCLUDE):
-#line 181 "scanner.l"
+#line 186 "scanner.l"
 {
                     YY_BUFFER_STATE buf = (YY_BUFFER_STATE)scanctx_pop_include(
                       yyextra);
@@ -1225,10 +1209,10 @@ case YY_STATE_EOF(INCLUDE):
 	YY_BREAK
 case 42:
 YY_RULE_SETUP
-#line 192 "scanner.l"
+#line 197 "scanner.l"
 ECHO;
 	YY_BREAK
-#line 1232 "scanner.c"
+#line 1216 "scanner.c"
 
 	case YY_END_OF_BUFFER:
 		{
@@ -1293,7 +1277,8 @@ ECHO;
 
 			else
 				{
-				yy_cp = yyg->yy_c_buf_p;
+				yy_cp = yyg->yy_last_accepting_cpos;
+				yy_current_state = yyg->yy_last_accepting_state;
 				goto yy_find_action;
 				}
 			}
@@ -1413,21 +1398,21 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 
 	else
 		{
-			int num_to_read =
+			yy_size_t num_to_read =
 			YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
 
 		while ( num_to_read <= 0 )
 			{ /* Not enough room in the buffer - grow it. */
 
 			/* just a shorter name for the current buffer */
-			YY_BUFFER_STATE b = YY_CURRENT_BUFFER;
+			YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE;
 
 			int yy_c_buf_p_offset =
 				(int) (yyg->yy_c_buf_p - b->yy_ch_buf);
 
 			if ( b->yy_is_our_buffer )
 				{
-				int new_size = b->yy_buf_size * 2;
+				yy_size_t new_size = b->yy_buf_size * 2;
 
 				if ( new_size <= 0 )
 					b->yy_buf_size += b->yy_buf_size / 8;
@@ -1458,7 +1443,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 
 		/* Read in more data. */
 		YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
-			yyg->yy_n_chars, (size_t) num_to_read );
+			yyg->yy_n_chars, num_to_read );
 
 		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
 		}
@@ -1556,6 +1541,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 	yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
 	yy_is_jam = (yy_current_state == 102);
 
+	(void)yyg;
 	return yy_is_jam ? 0 : yy_current_state;
 }
 
@@ -1584,7 +1570,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 
 		else
 			{ /* need more input */
-			int offset = yyg->yy_c_buf_p - yyg->yytext_ptr;
+			yy_size_t offset = yyg->yy_c_buf_p - yyg->yytext_ptr;
 			++yyg->yy_c_buf_p;
 
 			switch ( yy_get_next_buffer( yyscanner ) )
@@ -1756,10 +1742,6 @@ static void libconfig_yy_load_buffer_state  (yyscan_t yyscanner)
 	libconfig_yyfree((void *) b ,yyscanner );
 }
 
-#ifndef __cplusplus
-extern int isatty (int );
-#endif /* __cplusplus */
-    
 /* Initializes or reinitializes a buffer.
  * This function is sometimes called more than once on the same buffer,
  * such as during a libconfig_yyrestart() or at EOF.
@@ -1784,7 +1766,7 @@ extern int isatty (int );
         b->yy_bs_column = 0;
     }
 
-        b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
+        b->yy_is_interactive = 0;
     
 	errno = oerrno;
 }
@@ -1876,7 +1858,7 @@ void libconfig_yypop_buffer_state (yyscan_t yyscanner)
  */
 static void libconfig_yyensure_buffer_stack (yyscan_t yyscanner)
 {
-	int num_to_alloc;
+	yy_size_t num_to_alloc;
     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
 
 	if (!yyg->yy_buffer_stack) {
@@ -1974,7 +1956,7 @@ YY_BUFFER_STATE libconfig_yy_scan_string (yyconst char * yystr , yyscan_t yyscan
  * @param yyscanner The scanner object.
  * @return the newly allocated buffer state object.
  */
-YY_BUFFER_STATE libconfig_yy_scan_bytes  (yyconst char * yybytes, int  _yybytes_len , yyscan_t yyscanner)
+YY_BUFFER_STATE libconfig_yy_scan_bytes  (yyconst char * yybytes, yy_size_t  _yybytes_len , yyscan_t yyscanner)
 {
 	YY_BUFFER_STATE b;
 	char *buf;
@@ -2089,7 +2071,7 @@ FILE *libconfig_yyget_out  (yyscan_t yyscanner)
 /** Get the length of the current token.
  * @param yyscanner The scanner object.
  */
-int libconfig_yyget_leng  (yyscan_t yyscanner)
+yy_size_t libconfig_yyget_leng  (yyscan_t yyscanner)
 {
     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
     return yyleng;
@@ -2125,7 +2107,7 @@ void libconfig_yyset_lineno (int  line_number , yyscan_t yyscanner)
 
         /* lineno is only valid if an input buffer exists. */
         if (! YY_CURRENT_BUFFER )
-           yy_fatal_error( "libconfig_yyset_lineno called with no buffer" , yyscanner); 
+           YY_FATAL_ERROR( "libconfig_yyset_lineno called with no buffer" );
     
     yylineno = line_number;
 }
@@ -2140,7 +2122,7 @@ void libconfig_yyset_column (int  column_no , yyscan_t yyscanner)
 
         /* column is only valid if an input buffer exists. */
         if (! YY_CURRENT_BUFFER )
-           yy_fatal_error( "libconfig_yyset_column called with no buffer" , yyscanner); 
+           YY_FATAL_ERROR( "libconfig_yyset_column called with no buffer" );
     
     yycolumn = column_no;
 }
@@ -2364,4 +2346,4 @@ void libconfig_yyfree (void * ptr , yyscan_t yyscanner)
 
 #define YYTABLES_NAME "yytables"
 
-#line 192 "scanner.l"
+#line 197 "scanner.l"
diff --git a/3rdparty/libconfig/scanner.h b/3rdparty/libconfig/scanner.h
index baa6f771f..da1134498 100644
--- a/3rdparty/libconfig/scanner.h
+++ b/3rdparty/libconfig/scanner.h
@@ -3,8 +3,12 @@
 #define libconfig_yyIN_HEADER 1
 
 #line 6 "scanner.h"
+#line 36 "scanner.l"
+#include "scanctx.h"
 
-#line 8 "scanner.h"
+
+
+#line 12 "scanner.h"
 
 #define  YY_INT_ALIGNED short int
 
@@ -13,7 +17,7 @@
 #define FLEX_SCANNER
 #define YY_FLEX_MAJOR_VERSION 2
 #define YY_FLEX_MINOR_VERSION 5
-#define YY_FLEX_SUBMINOR_VERSION 33
+#define YY_FLEX_SUBMINOR_VERSION 37
 #if YY_FLEX_SUBMINOR_VERSION > 0
 #define FLEX_BETA
 #endif
@@ -35,7 +39,7 @@
 
 /* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
 
-#if __STDC_VERSION__ >= 199901L
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
 
 /* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
  * if you want the limit (max/min) macros for int types. 
@@ -58,7 +62,6 @@ typedef int flex_int32_t;
 typedef unsigned char flex_uint8_t; 
 typedef unsigned short int flex_uint16_t;
 typedef unsigned int flex_uint32_t;
-#endif /* ! C99 */
 
 /* Limits of integral types. */
 #ifndef INT8_MIN
@@ -89,6 +92,8 @@ typedef unsigned int flex_uint32_t;
 #define UINT32_MAX             (4294967295U)
 #endif
 
+#endif /* ! C99 */
+
 #endif /* ! FLEXINT_H */
 
 #ifdef __cplusplus
@@ -98,11 +103,12 @@ typedef unsigned int flex_uint32_t;
 
 #else	/* ! __cplusplus */
 
-#if __STDC__
+/* C99 requires __STDC__ to be defined as 1. */
+#if defined (__STDC__)
 
 #define YY_USE_CONST
 
-#endif	/* __STDC__ */
+#endif	/* defined (__STDC__) */
 #endif	/* ! __cplusplus */
 
 #ifdef YY_USE_CONST
@@ -128,21 +134,19 @@ typedef void* yyscan_t;
 #define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)
 #define yy_flex_debug yyg->yy_flex_debug_r
 
-int libconfig_yylex_init (yyscan_t* scanner);
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#define YY_BUF_SIZE 16384
+#endif
 
 #ifndef YY_TYPEDEF_YY_BUFFER_STATE
 #define YY_TYPEDEF_YY_BUFFER_STATE
 typedef struct yy_buffer_state *YY_BUFFER_STATE;
 #endif
 
-/* The following is because we cannot portably get our hands on size_t
- * (without autoconf's help, which isn't available because we want
- * flex-generated scanners to compile on their own).
- */
-
 #ifndef YY_TYPEDEF_YY_SIZE_T
 #define YY_TYPEDEF_YY_SIZE_T
-typedef unsigned int yy_size_t;
+typedef size_t yy_size_t;
 #endif
 
 #ifndef YY_STRUCT_YY_BUFFER_STATE
@@ -162,7 +166,7 @@ struct yy_buffer_state
 	/* Number of characters read into yy_ch_buf, not including EOB
 	 * characters.
 	 */
-	int yy_n_chars;
+	yy_size_t yy_n_chars;
 
 	/* Whether we "own" the buffer - i.e., we know we created it,
 	 * and can realloc() it to grow it, and should free() it to
@@ -206,13 +210,13 @@ void libconfig_yypop_buffer_state (yyscan_t yyscanner );
 
 YY_BUFFER_STATE libconfig_yy_scan_buffer (char *base,yy_size_t size ,yyscan_t yyscanner );
 YY_BUFFER_STATE libconfig_yy_scan_string (yyconst char *yy_str ,yyscan_t yyscanner );
-YY_BUFFER_STATE libconfig_yy_scan_bytes (yyconst char *bytes,int len ,yyscan_t yyscanner );
+YY_BUFFER_STATE libconfig_yy_scan_bytes (yyconst char *bytes,yy_size_t len ,yyscan_t yyscanner );
 
 void *libconfig_yyalloc (yy_size_t ,yyscan_t yyscanner );
 void *libconfig_yyrealloc (void *,yy_size_t ,yyscan_t yyscanner );
 void libconfig_yyfree (void * ,yyscan_t yyscanner );
 
-#define libconfig_yywrap(n) 1
+#define libconfig_yywrap(yyscanner) 1
 #define YY_SKIP_YYWRAP
 
 #define yytext_ptr yytext_r
@@ -220,12 +224,16 @@ void libconfig_yyfree (void * ,yyscan_t yyscanner );
 #ifdef YY_HEADER_EXPORT_START_CONDITIONS
 #define INITIAL 0
 #define COMMENT 1
+#define STRING 2
+#define INCLUDE 3
 
 #endif
 
-#ifndef YY_EXTRA_TYPE
-#define YY_EXTRA_TYPE void *
-#endif
+#define YY_EXTRA_TYPE struct scan_context *
+
+int libconfig_yylex_init (yyscan_t* scanner);
+
+int libconfig_yylex_init_extra (YY_EXTRA_TYPE user_defined,yyscan_t* scanner);
 
 /* Accessor methods to globals.
    These are made visible to non-reentrant scanners for convenience. */
@@ -248,7 +256,7 @@ FILE *libconfig_yyget_out (yyscan_t yyscanner );
 
 void libconfig_yyset_out  (FILE * out_str ,yyscan_t yyscanner );
 
-int libconfig_yyget_leng (yyscan_t yyscanner );
+yy_size_t libconfig_yyget_leng (yyscan_t yyscanner );
 
 char *libconfig_yyget_text (yyscan_t yyscanner );
 
@@ -256,6 +264,10 @@ int libconfig_yyget_lineno (yyscan_t yyscanner );
 
 void libconfig_yyset_lineno (int line_number ,yyscan_t yyscanner );
 
+int libconfig_yyget_column  (yyscan_t yyscanner );
+
+void libconfig_yyset_column (int column_no ,yyscan_t yyscanner );
+
 YYSTYPE * libconfig_yyget_lval (yyscan_t yyscanner );
 
 void libconfig_yyset_lval (YYSTYPE * yylval_param ,yyscan_t yyscanner );
@@ -300,9 +312,11 @@ static int yy_flex_strlen (yyconst char * ,yyscan_t yyscanner);
 #ifndef YY_DECL
 #define YY_DECL_IS_OURS 1
 
-extern int libconfig_yylex (YYSTYPE * yylval_param ,yyscan_t yyscanner);
+extern int libconfig_yylex \
+               (YYSTYPE * yylval_param ,yyscan_t yyscanner);
 
-#define YY_DECL int libconfig_yylex (YYSTYPE * yylval_param , yyscan_t yyscanner)
+#define YY_DECL int libconfig_yylex \
+               (YYSTYPE * yylval_param , yyscan_t yyscanner)
 #endif /* !YY_DECL */
 
 /* yy_get_previous_state - get the state just before the EOB char was reached */
@@ -319,8 +333,8 @@ extern int libconfig_yylex (YYSTYPE * yylval_param ,yyscan_t yyscanner);
 #undef YY_DECL
 #endif
 
-#line 130 "scanner.l"
+#line 197 "scanner.l"
 
-#line 325 "scanner.h"
+#line 339 "scanner.h"
 #undef libconfig_yyIN_HEADER
 #endif /* libconfig_yyHEADER_H */