Adding upstream version 1:9.11.5.P4+dfsg.upstream/1%9.11.5.P4+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 6907 insertions, 0 deletions

diff --git a/contrib/perftcpdns/Makefile.in b/contrib/perftcpdns/Makefile.in
new file mode 100644
index 0000000..bff2db0
--- /dev/null
+++ b/contrib/perftcpdns/Makefile.in
@@ -0,0 +1,28 @@
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+CC = @CC@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+DEFS = @DEFS@
+
+perftcpdns: perftcpdns.o $(LIBOBJS)
+	$(CC) $(CFLAGS) $(DEFS) $(LDFLAGS) perftcpdns.o $(LIBOBJS) $(LIBS) -o perftcpdns
+
+perftcpdns.o: perftcpdns.c
+	$(CC) $(CFLAGS) $(DEFS) -c perftcpdns.c
+
+clean:
+	rm -f *.o perftcpdns
+
+distclean: clean
+	rm -f config.log
+	rm -f config.cache
+	rm -f config.status
+	rm -f Makefile
diff --git a/contrib/perftcpdns/configure b/contrib/perftcpdns/configure
new file mode 100755
index 0000000..2be15f8
--- /dev/null
+++ b/contrib/perftcpdns/configure
@@ -0,0 +1,4342 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.69.
+#
+#
+# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+#
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${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"
+  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 about your system,
+$0: including any error possibly output before this
+$0: message. Then install a modern shell, or manually run
+$0: the script under such a shell if you do have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${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=
+PACKAGE_TARNAME=
+PACKAGE_VERSION=
+PACKAGE_STRING=
+PACKAGE_BUGREPORT=
+PACKAGE_URL=
+
+ac_unique_file="perftcpdns.c"
+ac_subst_vars='LTLIBOBJS
+LIBOBJS
+OBJEXT
+EXEEXT
+ac_ct_CC
+CPPFLAGS
+LDFLAGS
+CFLAGS
+CC
+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'
+
+
+# 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/${PACKAGE}'
+infodir='${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 this package 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 \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR            user executables [EPREFIX/bin]
+  --sbindir=DIR           system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR        program executables [EPREFIX/libexec]
+  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --libdir=DIR            object code libraries [EPREFIX/lib]
+  --includedir=DIR        C header files [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
+  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
+  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --infodir=DIR           info documentation [DATAROOTDIR/info]
+  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
+  --mandir=DIR            man documentation [DATAROOTDIR/man]
+  --docdir=DIR            documentation root [DATAROOTDIR/doc/PACKAGE]
+  --htmldir=DIR           html documentation [DOCDIR]
+  --dvidir=DIR            dvi documentation [DOCDIR]
+  --pdfdir=DIR            pdf documentation [DOCDIR]
+  --psdir=DIR             ps documentation [DOCDIR]
+_ACEOF
+
+  cat <<\_ACEOF
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+
+  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>
+
+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 the package provider.
+_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 $ac_init_version; then
+  cat <<\_ACEOF
+configure
+generated by GNU Autoconf 2.69
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+  exit
+fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$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 $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$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 $ac_retval
+
+} # ac_fn_c_try_link
+
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$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
+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 $as_me, 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_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
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrt in -lm" >&5
+$as_echo_n "checking for sqrt in -lm... " >&6; }
+if ${ac_cv_lib_m_sqrt+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* 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 sqrt ();
+int
+main ()
+{
+return sqrt ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m_sqrt=yes
+else
+  ac_cv_lib_m_sqrt=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sqrt" >&5
+$as_echo "$ac_cv_lib_m_sqrt" >&6; }
+if test "x$ac_cv_lib_m_sqrt" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBM 1
+_ACEOF
+
+  LIBS="-lm $LIBS"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
+$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
+if ${ac_cv_lib_rt_clock_gettime+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lrt  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* 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 clock_gettime ();
+int
+main ()
+{
+return clock_gettime ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_rt_clock_gettime=yes
+else
+  ac_cv_lib_rt_clock_gettime=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
+$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
+if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBRT 1
+_ACEOF
+
+  LIBS="-lrt $LIBS"
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking epoll support" >&5
+$as_echo_n "checking epoll support... " >&6; }
+if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <sys/epoll.h>
+int main() {
+	if (epoll_create(1) < 0)
+		return (1);
+	return (0);
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  as_fn_error $? "epoll not found" "$LINENO" 5
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
+case "$host" in
+        *-freebsd*)
+                # We don't want to set -lpthread as that break
+                # the ability to choose threads library at final
+                # link time and is not valid for all architectures.
+
+                PTHREAD=
+                if test "X$GCC" = "Xyes"; then
+                        saved_cc="$CC"
+                        CC="$CC -pthread"
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcc -pthread support" >&5
+$as_echo_n "checking for gcc -pthread support... " >&6; };
+                        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+printf("%x\n", pthread_create);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  PTHREAD="yes"
+                                    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+                        CC="$saved_cc"
+                fi
+                if test "X$PTHREAD" != "Xyes"; then
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lpthread" >&5
+$as_echo_n "checking for pthread_create in -lpthread... " >&6; }
+if ${ac_cv_lib_pthread_pthread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* 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 pthread_create ();
+int
+main ()
+{
+return pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_pthread_pthread_create=yes
+else
+  ac_cv_lib_pthread_pthread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_create" >&5
+$as_echo "$ac_cv_lib_pthread_pthread_create" >&6; }
+if test "x$ac_cv_lib_pthread_pthread_create" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBPTHREAD 1
+_ACEOF
+
+  LIBS="-lpthread $LIBS"
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for thread_create in -lthr" >&5
+$as_echo_n "checking for thread_create in -lthr... " >&6; }
+if ${ac_cv_lib_thr_thread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lthr  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* 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 thread_create ();
+int
+main ()
+{
+return thread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_thr_thread_create=yes
+else
+  ac_cv_lib_thr_thread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_thr_thread_create" >&5
+$as_echo "$ac_cv_lib_thr_thread_create" >&6; }
+if test "x$ac_cv_lib_thr_thread_create" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBTHR 1
+_ACEOF
+
+  LIBS="-lthr $LIBS"
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lc_r" >&5
+$as_echo_n "checking for pthread_create in -lc_r... " >&6; }
+if ${ac_cv_lib_c_r_pthread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc_r  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* 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 pthread_create ();
+int
+main ()
+{
+return pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_c_r_pthread_create=yes
+else
+  ac_cv_lib_c_r_pthread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_r_pthread_create" >&5
+$as_echo "$ac_cv_lib_c_r_pthread_create" >&6; }
+if test "x$ac_cv_lib_c_r_pthread_create" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBC_R 1
+_ACEOF
+
+  LIBS="-lc_r $LIBS"
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lc" >&5
+$as_echo_n "checking for pthread_create in -lc... " >&6; }
+if ${ac_cv_lib_c_pthread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* 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 pthread_create ();
+int
+main ()
+{
+return pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_c_pthread_create=yes
+else
+  ac_cv_lib_c_pthread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_pthread_create" >&5
+$as_echo "$ac_cv_lib_c_pthread_create" >&6; }
+if test "x$ac_cv_lib_c_pthread_create" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBC 1
+_ACEOF
+
+  LIBS="-lc $LIBS"
+
+else
+  as_fn_error $? "\"could not find thread libraries\"" "$LINENO" 5
+fi
+
+fi
+
+fi
+
+fi
+
+                fi
+                ;;
+        *)
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lpthread" >&5
+$as_echo_n "checking for pthread_create in -lpthread... " >&6; }
+if ${ac_cv_lib_pthread_pthread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* 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 pthread_create ();
+int
+main ()
+{
+return pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_pthread_pthread_create=yes
+else
+  ac_cv_lib_pthread_pthread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_create" >&5
+$as_echo "$ac_cv_lib_pthread_pthread_create" >&6; }
+if test "x$ac_cv_lib_pthread_pthread_create" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBPTHREAD 1
+_ACEOF
+
+  LIBS="-lpthread $LIBS"
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __pthread_create in -lpthread" >&5
+$as_echo_n "checking for __pthread_create in -lpthread... " >&6; }
+if ${ac_cv_lib_pthread___pthread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* 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 __pthread_create ();
+int
+main ()
+{
+return __pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_pthread___pthread_create=yes
+else
+  ac_cv_lib_pthread___pthread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread___pthread_create" >&5
+$as_echo "$ac_cv_lib_pthread___pthread_create" >&6; }
+if test "x$ac_cv_lib_pthread___pthread_create" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBPTHREAD 1
+_ACEOF
+
+  LIBS="-lpthread $LIBS"
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __pthread_create_system in -lpthread" >&5
+$as_echo_n "checking for __pthread_create_system in -lpthread... " >&6; }
+if ${ac_cv_lib_pthread___pthread_create_system+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* 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 __pthread_create_system ();
+int
+main ()
+{
+return __pthread_create_system ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_pthread___pthread_create_system=yes
+else
+  ac_cv_lib_pthread___pthread_create_system=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread___pthread_create_system" >&5
+$as_echo "$ac_cv_lib_pthread___pthread_create_system" >&6; }
+if test "x$ac_cv_lib_pthread___pthread_create_system" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBPTHREAD 1
+_ACEOF
+
+  LIBS="-lpthread $LIBS"
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lc_r" >&5
+$as_echo_n "checking for pthread_create in -lc_r... " >&6; }
+if ${ac_cv_lib_c_r_pthread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc_r  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* 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 pthread_create ();
+int
+main ()
+{
+return pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_c_r_pthread_create=yes
+else
+  ac_cv_lib_c_r_pthread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_r_pthread_create" >&5
+$as_echo "$ac_cv_lib_c_r_pthread_create" >&6; }
+if test "x$ac_cv_lib_c_r_pthread_create" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBC_R 1
+_ACEOF
+
+  LIBS="-lc_r $LIBS"
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lc" >&5
+$as_echo_n "checking for pthread_create in -lc... " >&6; }
+if ${ac_cv_lib_c_pthread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* 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 pthread_create ();
+int
+main ()
+{
+return pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_c_pthread_create=yes
+else
+  ac_cv_lib_c_pthread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_pthread_create" >&5
+$as_echo "$ac_cv_lib_c_pthread_create" >&6; }
+if test "x$ac_cv_lib_c_pthread_create" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBC 1
+_ACEOF
+
+  LIBS="-lc $LIBS"
+
+else
+  as_fn_error $? "\"could not find thread libraries\"" "$LINENO" 5
+fi
+
+fi
+
+fi
+
+fi
+
+fi
+
+        ;;
+esac
+
+ac_config_files="$ac_config_files 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 $as_me, 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 the package provider."
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_version="\\
+config.status
+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 $ac_config_target in
+    "Makefile") CONFIG_FILES="$CONFIG_FILES 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: $ac_unrecognized_opts" >&2;}
+fi
+
diff --git a/contrib/perftcpdns/configure.in b/contrib/perftcpdns/configure.in
new file mode 100644
index 0000000..35dc820
--- /dev/null
+++ b/contrib/perftcpdns/configure.in
@@ -0,0 +1,65 @@
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+AC_INIT(perftcpdns.c)
+
+AC_PREREQ(2.13)
+
+AC_PROG_CC
+
+AC_CHECK_LIB(m, sqrt)
+AC_CHECK_LIB(rt, clock_gettime)
+
+AC_MSG_CHECKING(epoll support)
+AC_TRY_RUN([
+#include <sys/epoll.h>
+int main() {
+	if (epoll_create(1) < 0)
+		return (1);
+	return (0);
+}
+], [AC_MSG_RESULT(yes)], [AC_MSG_ERROR(epoll not found)])
+
+case "$host" in
+        *-freebsd*)
+                # We don't want to set -lpthread as that break
+                # the ability to choose threads library at final
+                # link time and is not valid for all architectures.
+                
+                PTHREAD=
+                if test "X$GCC" = "Xyes"; then
+                        saved_cc="$CC"
+                        CC="$CC -pthread"
+                        AC_MSG_CHECKING(for gcc -pthread support);
+                        AC_TRY_LINK([#include <pthread.h>],
+                                    [printf("%x\n", pthread_create);],
+                                    PTHREAD="yes"
+                                    AC_MSG_RESULT(yes),
+                                    AC_MSG_RESULT(no))
+                        CC="$saved_cc"
+                fi
+                if test "X$PTHREAD" != "Xyes"; then
+                        AC_CHECK_LIB(pthread, pthread_create,,
+                        AC_CHECK_LIB(thr, thread_create,,
+                        AC_CHECK_LIB(c_r, pthread_create,,
+                        AC_CHECK_LIB(c, pthread_create,,
+                        AC_MSG_ERROR("could not find thread libraries")))))
+                fi
+                ;;
+        *)
+                AC_CHECK_LIB(pthread, pthread_create,,
+                        AC_CHECK_LIB(pthread, __pthread_create,,
+                        AC_CHECK_LIB(pthread, __pthread_create_system,,
+                        AC_CHECK_LIB(c_r, pthread_create,,
+                        AC_CHECK_LIB(c, pthread_create,,
+                        AC_MSG_ERROR("could not find thread libraries"))))))
+        ;;
+esac
+
+AC_OUTPUT(Makefile)
diff --git a/contrib/perftcpdns/perftcpdns.c b/contrib/perftcpdns/perftcpdns.c
new file mode 100644
index 0000000..55486e4
--- /dev/null
+++ b/contrib/perftcpdns/perftcpdns.c
@@ -0,0 +1,2472 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*
+ * TCP DNS perf tool
+ *
+ * main parameters are -r<rate> and <server>
+ * standard options are 4|6 (IPv4|IPv6), rate computations, terminaisons,
+ * EDNS0, NOERROR|NXDOMAIN, template (for your own query), diags,
+ * alternate server port and UDP version.
+ *
+ * To help to crush kernels (unfortunately both client and server :-)
+ * this version of the tool is multi-threaded:
+ *  - the master thread inits, monitors the activity each millisecond,
+ *   and report results when finished
+ *  - the connecting thread computes the date of the next connection,
+ *   creates a socket, makes it non blocking, binds it if wanted,
+ *   connects it and pushes it on the output epoll queue
+ *  - the sending thread gets by epoll connected sockets, timeouts
+ *   embryonic connections, sends queries and pushes sockets on
+ *   the input epoll queue
+ *  - the receiving thread gets by epoll sockets with a pending
+ *   response, receives responses, timeouts unanswered queries,
+ *   and recycles (by closing them) all sockets.
+ *
+ * Rate computation details:
+ *  - the target rate is in query+response per second.
+ *  - rating is done by the connecting thread.
+ *  - of course the tool is always late so the target rate is never
+ *   reached. BTW there is no attempt to internally adjust the
+ *   effective rate to the target one: this must be by tuning
+ *   the rate related parameters, first the -r<rate> itself.
+ *  - at the beginning of the connecting thread iteration loop
+ *   (second "loops" counter) the date of the due (aka next) connect()
+ *   call is computed from the last one with 101% of the rate.
+ *  - the due date is compared with the current date (aka now).
+ *  - if the due is before, lateconn counter is incremented, else
+ *   the thread sleeps for the difference,
+ *  - the next step is to reget the current date, if it is still
+ *   before the due date (e.g., because the sleep was interrupted)
+ *   the first shortwait counter is incremented.
+ *  - if it is after (common case) the number of connect calls is
+ *   computed from the difference between now and due divided by rate,
+ *   rounded to the next number,
+ *  - this number of connect() calls is bounded by the -a<aggressiveness>
+ *   parameter to avoid too many back to back new connection attempts.
+ *  - the compconn counter is incremented, errors (other than EINPROGRESS
+ *   from not blocking connect()) are printed. When an error is
+ *   related to a local limit (e.g., EMFILE, EADDRNOTAVAIL or the
+ *   internal ENOMEM) the locallimit counter is incremented.
+ */
+
+#ifdef __linux__
+#define _GNU_SOURCE
+#endif
+
+#include <sys/types.h>
+#include <sys/epoll.h>
+#include <sys/prctl.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <math.h>
+#include <netdb.h>
+#include <pthread.h>
+#include <signal.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+/* DNS defines */
+
+#define NS_TYPE_A		1
+#define NS_TYPE_NS		2
+#define NS_TYPE_CNAME		5
+#define NS_TYPE_SOA		6
+#define NS_TYPE_NULL		10
+#define NS_TYPE_PTR		12
+#define NS_TYPE_MX		15
+#define NS_TYPE_TXT		16
+#define NS_TYPE_AAAA		28
+#define NS_TYPE_OPT		41
+#define NS_TYPE_DS		43
+#define NS_TYPE_RRSIG		46
+#define NS_TYPE_NSEC		47
+#define NS_TYPE_DNSKEY		48
+#define NS_TYPE_NSEC3		50
+#define NS_TYPE_NSEC3PARAM	51
+#define NS_TYPE_TSIG		250
+#define NS_TYPE_IXFR		251
+#define NS_TYPE_AXFR		252
+#define NS_TYPE_ANY		255
+
+#define NS_CLASS_IN		1
+#define NS_CLASS_ANY		255
+
+#define NS_OFF_ID		0
+#define NS_OFF_FLAGS		2
+#define NS_OFF_QDCOUNT		4
+#define NS_OFF_ANCOUNT		6
+#define NS_OFF_NSCOUNT		8
+#define NS_OFF_ARCOUNT		10
+#define NS_OFF_QUESTION		12
+
+#define NS_FLAG_QR		0x8000U
+#define NS_FLAG_AA		0x0400U
+#define NS_FLAG_TC		0x0200U
+#define NS_FLAG_RD		0x0100U
+#define NS_FLAG_RA		0x0080U
+#define NS_FLAG_AD		0x0020U
+#define NS_FLAG_CD		0x0010U
+
+#define NS_XFLAG_DO		0x8000U
+
+#define NS_OPCODE_MASK		0x7000U
+#define NS_OPCODE_QUERY		0
+
+#define NS_RCODE_MASK		0x000fU
+#define NS_RCODE_NOERROR	0
+#define NS_RCODE_FORMERR	1
+#define NS_RCODE_SERVFAIL	2
+#define NS_RCODE_NXDOMAIN	3
+#define NS_RCODE_NOIMP		4
+#define NS_RCODE_REFUSED	5
+#define NS_RCODE_LAST		6
+
+/* chaining macros */
+
+#define ISC_INIT(head, headl)		do { \
+	(head) = -1; \
+	(headl) = &(head); \
+} while (0)
+
+#define ISC_INSERT(head, headl, elm)	do { \
+	(elm)->next = -1; \
+	(elm)->prev = (headl); \
+	*(headl) = (elm) - xlist; \
+	(headl) = &((elm)->next); \
+} while (0)
+
+#define ISC_REMOVE(headl, elm)		do { \
+	if ((elm)->next != -1) \
+		xlist[(elm)->next].prev = (elm)->prev; \
+	else \
+		(headl) = (elm)->prev; \
+	*(elm)->prev = (elm)->next; \
+} while (0)
+
+/*
+ * Data structures
+ */
+
+/*
+ * exchange:
+ *    - per exchange values:
+ *	* order (for debugging)
+ *	* id
+ *	* random (for debugging)
+ *	* time-stamps
+ *
+ * sent/rcvd chain, "next to be received" on entry cache.
+ */
+
+struct exchange {				/* per exchange structure */
+	int sock;				/* socket descriptor */
+	int next, *prev;			/* chaining */
+#define X_FREE	0
+#define X_CONN	1
+#define X_READY	2
+#define X_SENT	3
+	int state;				/* state */
+	uint16_t id;				/* ID */
+	uint64_t order;				/* number of this exchange */
+	struct timespec ts0, ts1, ts2, ts3;	/* timespecs */
+};
+struct exchange *xlist;				/* exchange list */
+int xlast;					/* number of exchanges */
+int xconn, *xconnl;				/* connecting list */
+int xready, *xreadyl;				/* connected list */
+int xsent, *xsentl;				/* sent list */
+int xfree, *xfreel;				/* free list */
+int xused;					/* next to be used list */
+pthread_mutex_t mtxconn, mtxsent, mtxfree;	/* mutexes */
+uint64_t xccount;				/* connected counters */
+uint64_t xscount;				/* sent counters */
+uint64_t xrcount;				/* received counters */
+
+/*
+ * statictics counters and accumulators
+ */
+
+uint64_t recverr, tooshort, locallimit;		/* error counters */
+uint64_t loops[4], shortwait[3];		/* rate stats */
+uint64_t lateconn, compconn;			/* rate stats (cont) */
+uint64_t badconn, collconn, badsent, collsent;	/* rate stats (cont) */
+uint64_t badid, notresp;			/* bad response counters */
+uint64_t rcodes[NS_RCODE_LAST + 1];		/* rcode counters */
+double dmin = 999999999.;			/* minimum delay */
+double dmax = 0.;				/* maximum delay */
+double dsum = 0.;				/* delay sum */
+double dsumsq = 0.;				/* square delay sum */
+
+/*
+ * command line parameters
+ */
+
+int edns0;				/* EDNS0 DO flag */
+int ipversion = 0;			/* IP version */
+int rate;				/* rate in connections per second */
+int noreport;				/* disable auto reporting */
+int report;				/* delay between two reports */
+uint32_t range;				/* randomization range */
+uint32_t maxrandom;			/* maximum random value */
+int basecnt;				/* base count */
+char *base[2];				/* bases */
+int gotnumreq = -1;			/* numreq[0] was set */
+int numreq[2];				/* number of exchanges */
+int period;				/* test period */
+int gotlosttime = -1;			/* losttime[0] was set */
+double losttime[2] = {.5, 1.};		/* delay for a timeout  */
+int gotmaxloss = -1;			/* max{p}loss[0] was set */
+int maxloss[2];				/* maximum number of losses */
+double maxploss[2] = {0., 0.};		/* maximum percentage */
+char *localname;			/* local address or interface */
+int aggressiveness = 1;			/* back to back connections */
+int seeded;				/* is a seed provided */
+unsigned int seed;			/* randomization seed */
+char *templatefile;			/* template file name */
+int rndoffset = -1;			/* template offset (random) */
+char *diags;				/* diagnostic selectors */
+char *servername;			/* server */
+int ixann;				/* ixann NXDOMAIN */
+int udp;				/* use UDP in place of TCP */
+int minport, maxport, curport;		/* port range */
+
+/*
+ * global variables
+ */
+
+struct sockaddr_storage localaddr;	/* local socket address */
+struct sockaddr_storage serveraddr;	/* server socket address */
+in_port_t port = 53;			/* server socket port */
+
+int epoll_ifd, epoll_ofd;		/* epoll file descriptors */
+#ifndef EVENTS_CNT
+#define EVENTS_CNT	16
+#endif
+struct epoll_event ievents[EVENTS_CNT];	/* polled input events */
+struct epoll_event oevents[EVENTS_CNT];	/* polled output events */
+int interrupted, fatal;			/* to finish flags */
+
+uint8_t obuf[4098], ibuf[4098];		/* I/O buffers */
+char tbuf[4098];			/* template buffer */
+
+struct timespec boot;			/* the date of boot */
+struct timespec last;			/* the date of last connect */
+struct timespec due;			/* the date of next connect */
+struct timespec dreport;		/* the date of next reporting */
+struct timespec finished;		/* the date of finish */
+
+/*
+ * template
+ */
+
+size_t length_query;
+uint8_t template_query[4096];
+size_t random_query;
+
+/*
+ * threads
+ */
+
+pthread_t master, connector, sender, receiver;
+
+/*
+ * initialize data structures handling exchanges
+ */
+
+void
+inits(void)
+{
+	int idx;
+
+	ISC_INIT(xconn, xconnl);
+	ISC_INIT(xready, xreadyl);
+	ISC_INIT(xsent, xsentl);
+	ISC_INIT(xfree, xfreel);
+
+	if ((pthread_mutex_init(&mtxconn, NULL) != 0) ||
+	    (pthread_mutex_init(&mtxsent, NULL) != 0) ||
+	    (pthread_mutex_init(&mtxfree, NULL) != 0)) {
+		fprintf(stderr, "pthread_mutex_init failed\n");
+		exit(1);
+	}
+
+	epoll_ifd = epoll_create(EVENTS_CNT);
+	if (epoll_ifd < 0) {
+		perror("epoll_create(input)");
+		exit(1);
+	}
+	epoll_ofd = epoll_create(EVENTS_CNT);
+	if (epoll_ofd < 0) {
+		perror("epoll_create(output)");
+		exit(1);
+	}
+
+	xlist = (struct exchange *) malloc(xlast * sizeof(struct exchange));
+	if (xlist == NULL) {
+		perror("malloc(exchanges)");
+		exit(1);
+	}
+	memset(xlist, 0, xlast * sizeof(struct exchange));
+
+	for (idx = 0; idx < xlast; idx++)
+		xlist[idx].sock = xlist[idx].next = -1;
+}
+
+/*
+ * build a TCP DNS QUERY
+ */
+
+void
+build_template_query(void)
+{
+	uint8_t *p = template_query;
+	uint16_t v;
+
+	/* flags */
+	p += NS_OFF_FLAGS;
+	v = NS_FLAG_RD;
+	*p++ = v >> 8;
+	*p++ = v & 0xff;
+	/* qdcount */
+	v = 1;
+	*p++ = v >> 8;
+	*p++ = v & 0xff;
+	/* ancount */
+	v = 0;
+	*p++ = v >> 8;
+	*p++ = v & 0xff;
+	/* nscount */
+	v = 0;
+	*p++ = v >> 8;
+	*p++ = v & 0xff;
+	/* arcount */
+	v = edns0;
+	*p++ = v >> 8;
+	*p++ = v & 0xff;
+	/* icann.link (or ixann.link) */
+	*p++ = 5;
+	*p++ = 'i';
+	if (ixann == 0)
+		*p++ = 'c';
+	else
+		*p++ = 'x';
+	*p++ = 'a';
+	*p++ = 'n';
+	*p++ = 'n';
+	*p++ = 4;
+	*p++ = 'l';
+	*p++ = 'i';
+	*p++ = 'n';
+	*p++ = 'k';
+	*p++ = 0;
+	/* type A/AAAA */
+	if (ipversion == 4)
+		v = NS_TYPE_A;
+	else
+		v = NS_TYPE_AAAA;
+	*p++ = v >> 8;
+	*p++ = v & 0xff;
+	/* class IN */
+	v = NS_CLASS_IN;
+	*p++ = v >> 8;
+	*p++ = v & 0xff;
+	/* EDNS0 OPT with DO */
+	if (edns0) {
+		/* root name */
+		*p++ = 0;
+		/* type OPT */
+		v = NS_TYPE_OPT;
+		*p++ = v >> 8;
+		*p++ = v & 0xff;
+		/* class UDP length */
+		v = 4096;
+		*p++ = v >> 8;
+		*p++ = v & 0xff;
+		/* extended rcode 0 */
+		*p++ = 0;
+		/* version 0 */
+		*p++ = 0;
+		/* extended flags DO */
+		v = NS_XFLAG_DO;
+		*p++ = v >> 8;
+		*p++ = v & 0xff;
+		/* rdlength */
+		v = 0;
+		*p++ = v >> 8;
+		*p++ = v & 0xff;
+	}
+	/* length */
+	length_query = p - template_query;
+}
+
+/*
+ * get a TCP DNS client QUERY template
+ * from the file given in the command line (-T<template-file>)
+ * and rnd offset (-O<random-offset>)
+ */
+
+void
+get_template_query(void)
+{
+	uint8_t *p = template_query;
+	int fd, cc, i, j;
+
+	fd = open(templatefile, O_RDONLY);
+	if (fd < 0) {
+		fprintf(stderr, "open(%s): %s\n",
+			templatefile, strerror(errno));
+		exit(2);
+	}
+	cc = read(fd, tbuf, sizeof(tbuf));
+	(void) close(fd);
+	if (cc < 0) {
+		fprintf(stderr, "read(%s): %s\n",
+			templatefile, strerror(errno));
+		exit(1);
+	}
+	if (cc < NS_OFF_QUESTION + 6) {
+		fprintf(stderr,"file '%s' too small\n", templatefile);
+		exit(2);
+	}
+	if (cc > 4096) {
+		fprintf(stderr,"file '%s' too large\n", templatefile);
+		exit(2);
+	}
+	j = 0;
+	for (i = 0; i < cc; i++) {
+		if (isspace((int) tbuf[i]))
+			continue;
+		if (!isxdigit((int) tbuf[i])) {
+			fprintf(stderr,
+				"illegal char[%d]='%c' in file '%s'\n",
+				i, (int) tbuf[i], templatefile);
+			exit(2);
+		}
+		tbuf[j] = tbuf[i];
+		j++;
+	}
+	cc = j;
+	if ((cc & 1) != 0) {
+		fprintf(stderr,
+			"odd number of hexadecimal digits in file '%s'\n",
+			templatefile);
+		exit(2);
+	}
+	length_query = cc >> 1;
+	for (i = 0; i < cc; i += 2)
+		(void) sscanf(tbuf + i, "%02hhx", &p[i >> 1]);
+	if (rndoffset >= 0)
+		random_query = (size_t) rndoffset;
+	if (random_query > length_query) {
+		fprintf(stderr,
+			"random (at %zu) outside the template (length %zu)?\n",
+			random_query, length_query);
+		exit(2);
+	}
+}
+
+#if 0
+/*
+ * randomize the value of the given field:
+ *   - offset of the field
+ *   - random seed (used as it when suitable)
+ *   - returns the random value which was used
+ */
+
+uint32_t
+randomize(size_t offset, uint32_t r)
+{
+	uint32_t v;
+
+	if (range == 0)
+		return 0;
+	if (range == UINT32_MAX)
+		return r;
+	if (maxrandom != 0)
+		while (r >= maxrandom)
+			r = (uint32_t) random();
+	r %= range + 1;
+	v = r;
+	v += obuf[offset];
+	obuf[offset] = v;
+	if (v < 256)
+		return r;
+	v >>= 8;
+	v += obuf[offset - 1];
+	obuf[offset - 1] = v;
+	if (v < 256)
+		return r;
+	v >>= 8;
+	v += obuf[offset - 2];
+	obuf[offset - 2] = v;
+	if (v < 256)
+		return r;
+	v >>= 8;
+	v += obuf[offset - 3];
+	obuf[offset - 3] = v;
+	return r;
+}
+#endif
+
+/*
+ * flush/timeout connect
+ */
+
+void
+flushconnect(void)
+{
+	struct exchange *x;
+	struct timespec now;
+	int idx = xconn;
+	int cnt = 10;
+	double waited;
+
+	if (clock_gettime(CLOCK_REALTIME, &now) < 0) {
+		perror("clock_gettime(flushconnect)");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return;
+	}
+
+	while (--cnt >= 0) {
+		if (idx < 0)
+			return;
+		x = xlist + idx;
+		idx = x->next;
+		if (x->state != X_CONN)
+			abort();
+		/* check for a timed-out connection */
+		waited = now.tv_sec - x->ts0.tv_sec;
+		waited += (now.tv_nsec - x->ts0.tv_nsec) / 1e9;
+		if (waited < losttime[0])
+			return;
+		/* garbage collect timed-out connections */
+		if (pthread_mutex_lock(&mtxconn) != 0) {
+			fprintf(stderr, "pthread_mutex_lock(flushconnect)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		ISC_REMOVE(xconnl, x);
+		if (pthread_mutex_unlock(&mtxconn) != 0) {
+			fprintf(stderr, "pthread_mutex_unlock(flushconnect)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		(void) close(x->sock);
+		x->sock = -1;
+		collconn++;
+		if (pthread_mutex_lock(&mtxfree) != 0) {
+			fprintf(stderr, "pthread_mutex_lock(flushconnect)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		x->state = X_FREE;
+		ISC_INSERT(xfree, xfreel, x);
+		if (pthread_mutex_unlock(&mtxfree) != 0) {
+			fprintf(stderr, "pthread_mutex_unlock(flushconnect)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+	}
+}
+
+/*
+ * poll connected
+ */
+
+void
+pollconnect(int topoll)
+{
+	struct exchange *x;
+	int evn, idx, err;
+	socklen_t len = sizeof(int);
+
+	for (evn = 0; evn < topoll; evn++) {
+		idx = oevents[evn].data.fd;
+		x = xlist + idx;
+		if (x->state != X_CONN)
+			continue;
+		if (oevents[evn].events == 0)
+			continue;
+		if (pthread_mutex_lock(&mtxconn) != 0) {
+			fprintf(stderr, "pthread_mutex_lock(pollconnect)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		ISC_REMOVE(xconnl, x);
+		if (pthread_mutex_unlock(&mtxconn) != 0) {
+			fprintf(stderr, "pthread_mutex_unlock(pollconnect)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		oevents[evn].events = 0;
+		if ((getsockopt(x->sock, SOL_SOCKET, SO_ERROR,
+				&err, &len) < 0) ||
+		    (err != 0)) {
+			(void) close(x->sock);
+			x->sock = -1;
+			badconn++;
+			if (pthread_mutex_lock(&mtxfree) != 0) {
+				fprintf(stderr,
+					"pthread_mutex_lock(pollconnect)");
+				fatal = 1;
+				(void) pthread_kill(master, SIGTERM);
+				return;
+			}
+			x->state = X_FREE;
+			ISC_INSERT(xfree, xfreel, x);
+			if (pthread_mutex_unlock(&mtxfree) != 0) {
+				fprintf(stderr,
+					"pthread_mutex_unlock(pollconnect)");
+				fatal = 1;
+				(void) pthread_kill(master, SIGTERM);
+				return;
+			}
+			continue;
+		}
+		x->state = X_READY;
+		ISC_INSERT(xready, xreadyl, x);
+	}
+}
+
+/*
+ * send the TCP DNS QUERY
+ */
+
+int
+sendquery(struct exchange *x)
+{
+	ssize_t ret;
+	size_t off;
+
+	if (udp)
+		off = 0;
+	else {
+		off = 2;
+		/* message length */
+		obuf[0] = length_query >> 8;
+		obuf[1]= length_query & 0xff;
+	}
+	/* message from template */
+	memcpy(obuf + off, template_query, length_query);
+	/* ID */
+	memcpy(obuf + off + NS_OFF_ID, &x->id, 2);
+#if 0
+	/* random */
+	if (random_query > 0)
+		x->rnd = randomize(random_query + off, x->rnd);
+#endif
+	/* timestamp */
+	errno = 0;
+	ret = clock_gettime(CLOCK_REALTIME, &x->ts2);
+	if (ret < 0) {
+		perror("clock_gettime(send)");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return -errno;
+	}
+	ret = send(x->sock, obuf, length_query + off, 0);
+	if ((size_t) ret == length_query + off)
+		return 0;
+	return -errno;
+}
+
+/*
+ * poll ready and send
+ */
+
+void
+pollsend(void)
+{
+	struct exchange *x;
+	int idx = xready;
+	struct epoll_event ev;
+
+	memset(&ev, 0, sizeof(ev));
+	ev.events = EPOLLIN | EPOLLET | EPOLLONESHOT;
+	for (;;) {
+		if (idx < 0)
+			return;
+		x = xlist + idx;
+		ev.data.fd = idx;
+		idx = x->next;
+		ISC_REMOVE(xreadyl, x);
+		if (sendquery(x) < 0) {
+			(void) close(x->sock);
+			x->sock = -1;
+			badsent++;
+			if (pthread_mutex_lock(&mtxfree) != 0) {
+				fprintf(stderr,
+					"pthread_mutex_lock(pollsend)");
+				fatal = 1;
+				(void) pthread_kill(master, SIGTERM);
+				return;
+			}
+			x->state = X_FREE;
+			ISC_INSERT(xfree, xfreel, x);
+			if (pthread_mutex_unlock(&mtxfree) != 0) {
+				fprintf(stderr,
+					"pthread_mutex_unlock(pollsend)");
+				fatal = 1;
+				(void) pthread_kill(master, SIGTERM);
+				return;
+			}
+			continue;
+		}
+		xscount++;
+		if (pthread_mutex_lock(&mtxsent) != 0) {
+			fprintf(stderr, "pthread_mutex_lock(pollsend)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		x->state = X_SENT;
+		ISC_INSERT(xsent, xsentl, x);
+		if (pthread_mutex_unlock(&mtxsent) != 0) {
+			fprintf(stderr, "pthread_mutex_unlock(pollsend)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		if (epoll_ctl(epoll_ifd, EPOLL_CTL_ADD, x->sock, &ev) < 0) {
+			perror("epoll_ctl(add input)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+	}
+}
+
+/*
+ * receive a TCP DNS RESPONSE
+ */
+
+void
+receiveresp(struct exchange *x)
+{
+	struct timespec now;
+	ssize_t cc;
+	size_t off;
+	uint16_t v;
+	double delta;
+
+	cc = recv(x->sock, ibuf, sizeof(ibuf), 0);
+	if (cc < 0) {
+		if ((errno == EAGAIN) ||
+		    (errno == EWOULDBLOCK) ||
+		    (errno == EINTR) ||
+		    (errno == ECONNRESET)) {
+			recverr++;
+			return;
+		}
+		perror("recv");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return;
+	}
+	if (udp)
+		off = 0;
+	else
+		off = 2;
+	/* enforce a reasonable length */
+	if ((size_t) cc < length_query + off) {
+		tooshort++;
+		return;
+	}
+	/* must match the ID */
+	if (memcmp(ibuf + off + NS_OFF_ID, &x->id, 2) != 0) {
+		badid++;
+		return;
+	}
+	/* must be a response */
+	memcpy(&v, ibuf + off + NS_OFF_FLAGS, 2);
+	v = ntohs(v);
+	if ((v & NS_FLAG_QR) == 0) {
+		notresp++;
+		return;
+	}
+	if (clock_gettime(CLOCK_REALTIME, &now) < 0) {
+		perror("clock_gettime(receive)");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return;
+	}
+	/* got it: update stats */
+	xrcount++;
+	x->ts3 = now;
+	delta = x->ts3.tv_sec - x->ts2.tv_sec;
+	delta += (x->ts3.tv_nsec - x->ts2.tv_nsec) / 1e9;
+	if (delta < dmin)
+		dmin = delta;
+	if (delta > dmax)
+		dmax = delta;
+	dsum += delta;
+	dsumsq += delta * delta;
+	v &= NS_RCODE_MASK;
+	if (v >= NS_RCODE_LAST)
+		v = NS_RCODE_LAST;
+	rcodes[v] += 1;
+}
+
+/*
+ * flush/timeout receive
+ */
+
+void
+flushrecv(void)
+{
+	struct exchange *x;
+	struct timespec now;
+	int idx = xsent;
+	int cnt = 5;
+	double waited;
+
+	if (clock_gettime(CLOCK_REALTIME, &now) < 0) {
+		perror("clock_gettime(receive)");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return;
+	}
+
+	while (--cnt >= 0) {
+		if (idx < 0)
+			return;
+		x = xlist + idx;
+		idx = x->next;
+		if (x->state != X_SENT)
+			abort();
+		/* check for a timed-out exchange */
+		waited = now.tv_sec - x->ts2.tv_sec;
+		waited += (now.tv_nsec - x->ts2.tv_nsec) / 1e9;
+		if (waited < losttime[1])
+			return;
+		/* garbage collect timed-out exchange */
+		if (pthread_mutex_lock(&mtxsent) != 0) {
+			fprintf(stderr, "pthread_mutex_lock(flushrecv)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		ISC_REMOVE(xsentl, x);
+		if (pthread_mutex_unlock(&mtxsent) != 0) {
+			fprintf(stderr, "pthread_mutex_unlock(flushrecv)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		(void) close(x->sock);
+		x->sock = -1;
+		collsent++;
+		if (pthread_mutex_lock(&mtxfree) != 0) {
+			fprintf(stderr, "pthread_mutex_lock(flushrecv)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		x->state = X_FREE;
+		ISC_INSERT(xfree, xfreel, x);
+		if (pthread_mutex_unlock(&mtxfree) != 0) {
+			fprintf(stderr, "pthread_mutex_unlock(flushrecv)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+	}
+}
+
+/*
+ * poll receive
+ */
+
+void
+pollrecv(int topoll)
+{
+	struct exchange *x;
+	int evn, idx;
+
+	for (evn = 0; evn < topoll; evn++) {
+		idx = ievents[evn].data.fd;
+		x = xlist + idx;
+		if (x->state != X_SENT)
+			continue;
+		if (ievents[evn].events == 0)
+			continue;
+		if (pthread_mutex_lock(&mtxsent) != 0) {
+			fprintf(stderr, "pthread_mutex_lock(pollrecv)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		ISC_REMOVE(xsentl, x);
+		if (pthread_mutex_unlock(&mtxsent) != 0) {
+			fprintf(stderr, "pthread_mutex_unlock(pollrecv)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		receiveresp(x);
+		ievents[evn].events = 0;
+		(void) close(x->sock);
+		x->sock = -1;
+		if (pthread_mutex_lock(&mtxfree) != 0) {
+			fprintf(stderr, "pthread_mutex_lock(pollrecv)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+		x->state = X_FREE;
+		ISC_INSERT(xfree, xfreel, x);
+		if (pthread_mutex_unlock(&mtxfree) != 0) {
+			fprintf(stderr, "pthread_mutex_unlock(pollrecv)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return;
+		}
+	}
+}
+
+/*
+ * get the TCP DNS socket descriptor (IPv4)
+ */
+
+int
+getsock4(void)
+{
+	int sock;
+	int flags;
+
+	errno = 0;
+	if (udp)
+		sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
+	else
+		sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
+	if (sock < 0)
+		return -errno;
+
+	/* make the socket descriptor not blocking */
+	flags = fcntl(sock, F_GETFL, 0);
+	if (flags == -1) {
+		(void) close(sock);
+		return -errno;
+	}
+	if (fcntl(sock, F_SETFL, flags | O_NONBLOCK) == -1) {
+		(void) close(sock);
+		return -errno;
+	}
+
+	/* bind if wanted */
+	if (localname != NULL) {
+		if (curport) {
+			struct sockaddr_in *l4;
+
+			l4 = (struct sockaddr_in *) &localaddr;
+			l4->sin_port = htons((uint16_t) curport);
+			curport++;
+			if (curport > maxport)
+				curport = minport;
+		}
+		if (bind(sock,
+			 (struct sockaddr *) &localaddr,
+			 sizeof(struct sockaddr_in)) < 0) {
+			(void) close(sock);
+			return -errno;
+		}
+	}
+
+	/* connect */
+	if (connect(sock,
+		    (struct sockaddr *) &serveraddr,
+		    sizeof(struct sockaddr_in)) < 0) {
+		if (errno != EINPROGRESS) {
+			(void) close(sock);
+			return -errno;
+		}
+	}
+	return sock;
+}
+
+/*
+ * connect the TCP DNS QUERY (IPv4)
+ */
+
+int
+connect4(void)
+{
+	struct exchange *x;
+	int ret;
+	int idx;
+	struct epoll_event ev;
+
+	ret = clock_gettime(CLOCK_REALTIME, &last);
+	if (ret < 0) {
+		perror("clock_gettime(connect)");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return -errno;
+	}
+
+	if (xfree >= 0) {
+		idx = xfree;
+		x = xlist + idx;
+		ret = pthread_mutex_lock(&mtxfree);
+		if (ret != 0) {
+			fprintf(stderr, "pthread_mutex_lock(connect4)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return -ret;
+		}
+		ISC_REMOVE(xfreel, x);
+		ret = pthread_mutex_unlock(&mtxfree);
+		if (ret != 0) {
+			fprintf(stderr, "pthread_mutex_unlock(connect4)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return -ret;
+		}
+	} else if (xused < xlast) {
+		idx = xused;
+		x = xlist + idx;
+		xused++;
+	} else
+		return -ENOMEM;
+
+	if ((x->state != X_FREE) || (x->sock != -1))
+		abort();
+
+	memset(x, 0, sizeof(*x));
+	memset(&ev, 0, sizeof(ev));
+	x->next = -1;
+	x->prev = NULL;
+	x->ts0 = last;
+	x->sock = getsock4();
+	if (x->sock < 0) {
+		int result = x->sock;
+
+		x->sock = -1;
+		ret = pthread_mutex_lock(&mtxfree);
+		if (ret != 0) {
+			fprintf(stderr, "pthread_mutex_lock(connect4)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return -ret;
+		}
+		ISC_INSERT(xfree, xfreel, x);
+		ret = pthread_mutex_unlock(&mtxfree);
+		if (ret != 0) {
+			fprintf(stderr, "pthread_mutex_unlock(connect4)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return -ret;
+		}
+		return result;
+	}
+	ret = pthread_mutex_lock(&mtxconn);
+	if (ret != 0) {
+		fprintf(stderr, "pthread_mutex_lock(connect4)");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return -ret;
+	}
+	x->state = X_CONN;
+	ISC_INSERT(xconn, xconnl, x);
+	ret = pthread_mutex_unlock(&mtxconn);
+	if (ret != 0) {
+		fprintf(stderr, "pthread_mutex_unlock(connect4)");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return -ret;
+	}
+	ev.events = EPOLLOUT | EPOLLET | EPOLLONESHOT;
+	ev.data.fd = idx;
+	if (epoll_ctl(epoll_ofd, EPOLL_CTL_ADD, x->sock, &ev) < 0) {
+		perror("epoll_ctl(add output)");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return -errno;
+	}
+	x->order = xccount++;
+	x->id = (uint16_t) random();
+#if 0
+	if (random_query > 0)
+		x->rnd = (uint32_t) random();
+#endif
+	return idx;
+}
+
+/*
+ * get the TCP DNS socket descriptor (IPv6)
+ */
+
+int
+getsock6(void)
+{
+	int sock;
+	int flags;
+
+	errno = 0;
+	if (udp)
+		sock = socket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP);
+	else
+		sock = socket(PF_INET6, SOCK_STREAM, IPPROTO_TCP);
+	if (sock < 0)
+		return -errno;
+
+	/* make the socket descriptor not blocking */
+	flags = fcntl(sock, F_GETFL, 0);
+	if (flags == -1) {
+		(void) close(sock);
+		return -errno;
+	}
+	if (fcntl(sock, F_SETFL, flags | O_NONBLOCK) == -1) {
+		(void) close(sock);
+		return -errno;
+	}
+
+	/* bind if wanted */
+	if (localname != NULL) {
+		if (curport) {
+			struct sockaddr_in6 *l6;
+
+			l6 = (struct sockaddr_in6 *) &localaddr;
+			l6->sin6_port = htons((uint16_t) curport);
+			curport++;
+			if (curport > maxport)
+				curport = minport;
+		}
+		if (bind(sock,
+			 (struct sockaddr *) &localaddr,
+			 sizeof(struct sockaddr_in6)) < 0) {
+			(void) close(sock);
+			return -errno;
+		}
+	}
+
+	/* connect */
+	if (connect(sock,
+		    (struct sockaddr *) &serveraddr,
+		    sizeof(struct sockaddr_in6)) < 0) {
+		if (errno != EINPROGRESS) {
+			(void) close(sock);
+			return -errno;
+		}
+	}
+	return sock;
+}
+
+/*
+ * connect the TCP DNS QUERY (IPv6)
+ */
+
+int
+connect6(void)
+{
+	struct exchange *x;
+	int ret;
+	int idx;
+	struct epoll_event ev;
+
+	ret = clock_gettime(CLOCK_REALTIME, &last);
+	if (ret < 0) {
+		perror("clock_gettime(connect)");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return -errno;
+	}
+
+	if (xfree >= 0) {
+		idx = xfree;
+		x = xlist + idx;
+		ret = pthread_mutex_lock(&mtxfree);
+		if (ret != 0) {
+			fprintf(stderr, "pthread_mutex_lock(connect6)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return -ret;
+		}
+		ISC_REMOVE(xfreel, x);
+		ret = pthread_mutex_unlock(&mtxfree);
+		if (ret != 0) {
+			fprintf(stderr, "pthread_mutex_unlock(connect6)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return -ret;
+		}
+	} else if (xused < xlast) {
+		idx = xused;
+		x = xlist + idx;
+		xused++;
+	} else
+		return -ENOMEM;
+
+	memset(x, 0, sizeof(*x));
+	memset(&ev, 0, sizeof(ev));
+	x->next = -1;
+	x->prev = NULL;
+	x->ts0 = last;
+	x->sock = getsock6();
+	if (x->sock < 0) {
+		int result = x->sock;
+
+		x->sock = -1;
+		ret = pthread_mutex_lock(&mtxfree);
+		if (ret != 0) {
+			fprintf(stderr, "pthread_mutex_lock(connect6)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return -ret;
+		}
+		ISC_INSERT(xfree, xfreel, x);
+		ret = pthread_mutex_unlock(&mtxfree);
+		if (ret != 0) {
+			fprintf(stderr, "pthread_mutex_unlock(connect6)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			return -ret;
+		}
+		return result;
+	}
+	ret = pthread_mutex_lock(&mtxconn);
+	if (ret != 0) {
+		fprintf(stderr, "pthread_mutex_lock(connect6)");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return -ret;
+	}
+	x->state = X_CONN;
+	ISC_INSERT(xconn, xconnl, x);
+	ret = pthread_mutex_unlock(&mtxconn);
+	if (ret != 0) {
+		fprintf(stderr, "pthread_mutex_unlock(connect6)");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return -ret;
+	}
+	ev.events = EPOLLOUT | EPOLLET | EPOLLONESHOT;
+	ev.data.fd = idx;
+	if (epoll_ctl(epoll_ofd, EPOLL_CTL_ADD, x->sock, &ev) < 0) {
+		perror("epoll_ctl(add output)");
+		fatal = 1;
+		(void) pthread_kill(master, SIGTERM);
+		return -errno;
+	}
+	x->order = xccount++;
+	x->id = (uint16_t) random();
+#if 0
+	if (random_query > 0)
+		x->rnd = (uint32_t) random();
+#endif
+	return idx;
+}
+
+/*
+ * connector working routine
+ */
+
+void *
+connecting(void *dummy)
+{
+	struct timespec now, ts;
+	int ret;
+	int i;
+	char name[16];
+
+	dummy = dummy;
+
+	/* set conn-name */
+	memset(name, 0, sizeof(name));
+	ret = prctl(PR_GET_NAME, name, 0, 0, 0);
+	if (ret < 0)
+		perror("prctl(PR_GET_NAME)");
+	else {
+		memmove(name + 5, name, 11);
+		memcpy(name, "conn-", 5);
+		ret = prctl(PR_SET_NAME, name, 0, 0, 0);
+		if (ret < 0)
+			perror("prctl(PR_SET_NAME");
+	}
+
+	for (;;) {
+		if (fatal)
+			break;
+
+		loops[1]++;
+
+		/* compute the delay for the next connection */
+		if (clock_gettime(CLOCK_REALTIME, &now) < 0) {
+			perror("clock_gettime(connecting)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			break;
+		}
+
+		due = last;
+		if (rate == 1)
+			due.tv_sec += 1;
+		else
+			due.tv_nsec += 1010000000 / rate;
+		while (due.tv_nsec >= 1000000000) {
+			due.tv_sec += 1;
+			due.tv_nsec -= 1000000000;
+		}
+		ts = due;
+		ts.tv_sec -= now.tv_sec;
+		ts.tv_nsec -= now.tv_nsec;
+		while (ts.tv_nsec < 0) {
+			ts.tv_sec -= 1;
+			ts.tv_nsec += 1000000000;
+		}
+		/* the connection was already due? */
+		if (ts.tv_sec < 0) {
+			ts.tv_sec = ts.tv_nsec = 0;
+			lateconn++;
+		} else {
+			/* wait until */
+			ret = clock_nanosleep(CLOCK_REALTIME, 0, &ts, NULL);
+			if (ret != 0) {
+				if (ret == EINTR)
+					continue;
+				fprintf(stderr, "clock_nanosleep: %s\n",
+					strerror(ret));
+				fatal = 1;
+				(void) pthread_kill(master, SIGTERM);
+				break;
+			}
+		}
+
+		/* compute how many connections to open */
+		if (clock_gettime(CLOCK_REALTIME, &now) < 0) {
+			perror("clock_gettime(connecting)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			break;
+		}
+
+		if ((now.tv_sec > due.tv_sec) ||
+		    ((now.tv_sec == due.tv_sec) &&
+		     (now.tv_nsec >= due.tv_nsec))) {
+			double toconnect;
+
+			toconnect = (now.tv_nsec - due.tv_nsec) / 1e9;
+			toconnect += now.tv_sec - due.tv_sec;
+			toconnect *= rate;
+			toconnect++;
+			if (toconnect > (double) aggressiveness)
+				i = aggressiveness;
+			else
+				i = (int) toconnect;
+			compconn += i;
+			/* open connections */
+			while (i-- > 0) {
+				if (ipversion == 4)
+					ret = connect4();
+				else
+					ret = connect6();
+				if (ret < 0) {
+					if ((ret == -EAGAIN) ||
+					    (ret == -EWOULDBLOCK) ||
+					    (ret == -ENOBUFS) ||
+					    (ret == -ENFILE) ||
+					    (ret == -EMFILE) ||
+					    (ret == -EADDRNOTAVAIL) ||
+					    (ret == -ENOMEM))
+						locallimit++;
+					fprintf(stderr,
+						"connect: %s\n",
+						strerror(-ret));
+					break;
+				}
+			}
+		} else
+			/* there was no connection to open */
+			shortwait[0]++;
+	}
+
+	return NULL;
+}
+
+/*
+ * sender working routine
+ */
+
+void *
+sending(void *dummy)
+{
+	int ret;
+	int nfds;
+	char name[16];
+
+	dummy = dummy;
+
+	/* set send-name */
+	memset(name, 0, sizeof(name));
+	ret = prctl(PR_GET_NAME, name, 0, 0, 0);
+	if (ret < 0)
+		perror("prctl(PR_GET_NAME)");
+	else {
+		memmove(name + 5, name, 11);
+		memcpy(name, "send-", 5);
+		ret = prctl(PR_SET_NAME, name, 0, 0, 0);
+		if (ret < 0)
+			perror("prctl(PR_SET_NAME");
+	}
+
+	for (;;) {
+		if (fatal)
+			break;
+
+		loops[2]++;
+
+		/* epoll_wait() */
+		memset(oevents, 0, sizeof(oevents));
+		nfds = epoll_wait(epoll_ofd, oevents, EVENTS_CNT, 1);
+		if (nfds < 0) {
+			if (errno == EINTR)
+				continue;
+			perror("epoll_wait(output)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			break;
+		}
+
+		/* connection(s) to finish */
+		if (nfds == 0)
+			shortwait[1]++;
+		else
+			pollconnect(nfds);
+		if (fatal)
+			break;
+		flushconnect();
+		if (fatal)
+			break;
+
+		/* packet(s) to send */
+		pollsend();
+		if (fatal)
+			break;
+	}
+
+	return NULL;
+}
+
+/*
+ * receiver working routine
+ */
+
+void *
+receiving(void *dummy)
+{
+	int ret;
+	int nfds;
+	char name[16];
+
+	dummy = dummy;
+
+	/* set recv-name */
+	memset(name, 0, sizeof(name));
+	ret = prctl(PR_GET_NAME, name, 0, 0, 0);
+	if (ret < 0)
+		perror("prctl(PR_GET_NAME)");
+	else {
+		memmove(name + 5, name, 11);
+		memcpy(name, "recv-", 5);
+		ret = prctl(PR_SET_NAME, name, 0, 0, 0);
+		if (ret < 0)
+			perror("prctl(PR_SET_NAME");
+	}
+
+	for (;;) {
+		if (fatal)
+			break;
+
+		loops[3]++;
+
+		/* epoll_wait() */
+		memset(ievents, 0, sizeof(ievents));
+		nfds = epoll_wait(epoll_ifd, ievents, EVENTS_CNT, 1);
+		if (nfds < 0) {
+			if (errno == EINTR)
+				continue;
+			perror("epoll_wait(input)");
+			fatal = 1;
+			(void) pthread_kill(master, SIGTERM);
+			break;
+		}
+
+		/* packet(s) to receive */
+		if (nfds == 0)
+			shortwait[2]++;
+		else
+			pollrecv(nfds);
+		if (fatal)
+			break;
+		flushrecv();
+		if (fatal)
+			break;
+	}
+
+	return NULL;
+}
+
+/*
+ * get the server socket address from the command line:
+ *  - flags: inherited from main, 0 or AI_NUMERICHOST (for literals)
+ */
+
+void
+getserveraddr(const int flags)
+{
+	struct addrinfo hints, *res;
+	int ret;
+
+	memset(&hints, 0, sizeof(hints));
+	if (ipversion == 4)
+		hints.ai_family = AF_INET;
+	else
+		hints.ai_family = AF_INET6;
+	if (udp) {
+		hints.ai_socktype = SOCK_DGRAM;
+		hints.ai_protocol = IPPROTO_UDP;
+	} else {
+		hints.ai_socktype = SOCK_STREAM;
+		hints.ai_protocol = IPPROTO_TCP;
+	}
+	hints.ai_flags = AI_ADDRCONFIG | flags;
+
+	ret = getaddrinfo(servername, NULL, &hints, &res);
+	if (ret != 0) {
+		fprintf(stderr, "bad server=%s: %s\n",
+			servername, gai_strerror(ret));
+		exit(2);
+	}
+	if (res->ai_next != NULL) {
+		fprintf(stderr, "ambiguous server=%s\n", servername);
+		exit(2);
+	}
+	memcpy(&serveraddr, res->ai_addr, res->ai_addrlen);
+	freeaddrinfo(res);
+	if (ipversion == 4)
+		((struct sockaddr_in *)&serveraddr)->sin_port = htons(port);
+	else
+		((struct sockaddr_in6 *)&serveraddr)->sin6_port = htons(port);
+}
+
+/*
+ * get the local socket address from the command line
+ */
+
+void
+getlocaladdr(void)
+{
+	struct addrinfo hints, *res;
+	int ret;
+
+	memset(&hints, 0, sizeof(hints));
+	if (ipversion == 4)
+		hints.ai_family = AF_INET;
+	else
+		hints.ai_family = AF_INET6;
+	if (udp) {
+		hints.ai_socktype = SOCK_DGRAM;
+		hints.ai_protocol = IPPROTO_UDP;
+	} else {
+		hints.ai_socktype = SOCK_STREAM;
+		hints.ai_protocol = IPPROTO_TCP;
+	}
+	hints.ai_flags = AI_ADDRCONFIG;
+
+	ret = getaddrinfo(localname, NULL, &hints, &res);
+	if (ret != 0) {
+		fprintf(stderr,
+			"bad -l<local-addr=%s>: %s\n",
+			localname,
+			gai_strerror(ret));
+		exit(2);
+	}
+	/* refuse multiple addresses */
+	if (res->ai_next != NULL) {
+		fprintf(stderr,
+			"ambiguous -l<local-addr=%s>\n",
+			localname);
+		exit(2);
+	}
+	memcpy(&localaddr, res->ai_addr, res->ai_addrlen);
+	freeaddrinfo(res);
+}
+
+/*
+ * intermediate reporting
+ * (note: an in-transit packet can be reported as lost)
+ */
+
+void
+reporting(void)
+{
+	dreport.tv_sec += report;
+
+	if (xccount != 0) {
+		printf("connect: %llu, sent: %llu, received: %llu "
+		       "(embryonics: %lld, drops: %lld)",
+		       (unsigned long long) xccount,
+		       (unsigned long long) xscount,
+		       (unsigned long long) xrcount,
+		       (long long) (xccount - xscount),
+		       (long long) (xscount - xrcount));
+		if (xrcount != 0) {
+			double avg;
+
+			avg = dsum / xrcount;
+			printf(" average: %.3f ms", avg * 1e3);
+		}
+	}
+	printf("\n");
+}
+
+/*
+ * SIGCHLD handler
+ */
+
+void
+reapchild(int sig)
+{
+	int status;
+
+	sig = sig;
+	while (wait3(&status, WNOHANG, NULL) > 0)
+		/* continue */;
+}
+
+/*
+ * SIGINT handler
+ */
+
+void
+interrupt(int sig)
+{
+	sig = sig;
+	interrupted = 1;
+}
+
+/*
+ * SIGTERM handler
+ */
+
+void
+terminate(int sig)
+{
+	sig = sig;
+	fatal = 1;
+}
+
+/*
+ * '-v' handler
+ */
+
+void
+version(void)
+{
+	fprintf(stderr, "version 0.01\n");
+}
+
+/*
+ * usage (from the wiki)
+ */
+
+void
+usage(void)
+{
+	fprintf(stderr, "%s",
+"perftcpdns [-huvX0] [-4|-6] [-r<rate>] [-t<report>] [-p<test-period>]\n"
+"    [-n<num-request>]* [-d<lost-time>]* [-D<max-loss>]* [-T<template-file>]\n"
+"    [-l<local-addr>] [-L<local-port>]* [-a<aggressiveness>] [-s<seed>]\n"
+"    [-M<memory>] [-x<diagnostic-selector>] [-P<port>] server\n"
+"\f\n"
+"The server argument is the name/address of the DNS server to contact.\n"
+"\n"
+"Options:\n"
+"-0: Add EDNS0 option with DO flag.\n"
+"-4: TCP/IPv4 operation (default). This is incompatible with the -6 option.\n"
+"-6: TCP/IPv6 operation. This is incompatible with the -4 option.\n"
+"-a<aggressiveness>: When the target sending rate is not yet reached,\n"
+"    control how many connections are initiated before the next pause.\n"
+"-d<lost-time>: Specify the time after which a connection or a query is\n"
+"    treated as having been lost. The value is given in seconds and\n"
+"    may contain a fractional component. The default is 1 second.\n"
+"-h: Print this help.\n"
+"-l<local-addr>: Specify the local hostname/address to use when\n"
+"    communicating with the server.\n"
+"-L<local-port>: Specify the (minimal and maximal) local port number\n"
+"-M<memory>: Size of the tables (default 60000)\n"
+"-P<port>: Specify an alternate (i.e., not 53) port\n"
+"-r<rate>: Initiate <rate> TCP DNS connections per second.  A periodic\n"
+"    report is generated showing the number of exchanges which were not\n"
+"    completed, as well as the average response latency.  The program\n"
+"    continues until interrupted, at which point a final report is\n"
+"    generated.\n"
+"-s<seed>: Specify the seed for randomization, making it repeatable.\n"
+"-t<report>: Delay in seconds between two periodic reports.\n"
+"-T<template-file>: The name of a file containing the template to use\n"
+"    as a stream of hexadecimal digits.\n"
+"-u: Use UDP in place of TCP.\n"
+"-v: Report the version number of this program.\n"
+"-X: change default template to get NXDOMAIN responses.\n"
+"-x<diagnostic-selector>: Include extended diagnostics in the output.\n"
+"    <diagnostic-selector> is a string of single-keywords specifying\n"
+"    the operations for which verbose output is desired.  The selector\n"
+"    keyletters are:\n"
+"   * 'a': print the decoded command line arguments\n"
+"   * 'e': print the exit reason\n"
+"   * 'i': print rate processing details\n"
+"   * 'T': when finished, print templates\n"
+"\n"
+"Stopping conditions:\n"
+"-D<max-loss>: Abort the test if more than <max-loss> connections or\n"
+"   queries have been lost.  If <max-loss> includes the suffix '%', it\n"
+"   specifies a maximum percentage of losses before stopping.\n"
+"   In this case, testing of the threshold begins after 10\n"
+"   connections/responses have been expected to be accepted/received.\n"
+"-n<num-request>: Initiate <num-request> transactions.  No report is\n"
+"    generated until all transactions have been initiated/waited-for,\n"
+"    after which a report is generated and the program terminates.\n"
+"-p<test-period>: Send requests for the given test period, which is\n"
+"    specified in the same manner as -d.  This can be used as an\n"
+"    alternative to -n, or both options can be given, in which case the\n"
+"    testing is completed when either limit is reached.\n"
+"\n"
+"Errors:\n"
+"- locallimit: reached to local system limits when sending a message.\n"
+"- badconn: connection failed (from getsockopt(SO_ERROR))\n"
+"- collconn: connect() timed out\n"
+"- badsent: send() failed\n"
+"- callsent: timed out waiting from a response\n"
+"- recverr: recv() system call failed\n"
+"- tooshort: received a too short message\n"
+"- badid: the id mismatches between the query and the response\n"
+"- notresp: doesn't receive a response\n"
+"Rate stats:\n"
+"- loops: number of thread loop iterations\n"
+"- shortwait: no direct activity in a thread iteration\n"
+"- compconn: computed number of connect() calls\n"
+"- lateconn: connect() already dued when computing delay to the next one\n"
+"\n"
+"Exit status:\n"
+"The exit status is:\n"
+"0 on complete success.\n"
+"1 for a general error.\n"
+"2 if an error is found in the command line arguments.\n"
+"3 if there are no general failures in operation, but one or more\n"
+"  exchanges are not successfully completed.\n");
+}
+
+/*
+ * main function / entry point
+ */
+
+int
+main(const int argc, char * const argv[])
+{
+	int opt, flags = 0, ret, i;
+	long long r;
+	char *pc;
+	double d;
+	extern char *optarg;
+	extern int optind;
+
+#define OPTIONS	"hv46u0XM:r:t:R:b:n:p:d:D:l:L:a:s:T:O:x:P:"
+
+	/* decode options */
+	while ((opt = getopt(argc, argv, OPTIONS)) != -1)
+	switch (opt) {
+	case 'h':
+		usage();
+		exit(0);
+
+	case 'u':
+		udp = 1;
+		break;
+
+	case 'v':
+		version();
+		exit(0);
+
+	case '0':
+		edns0 = 1;
+		break;
+
+	case '4':
+		if (ipversion == 6) {
+			fprintf(stderr, "IP version already set to 6\n");
+			usage();
+			exit(2);
+		}
+		ipversion = 4;
+		break;
+
+	case '6':
+		if (ipversion == 4) {
+			fprintf(stderr, "IP version already set to 4\n");
+			usage();
+			exit(2);
+		}
+		ipversion = 6;
+		break;
+
+	case 'X':
+		ixann = 1;
+		break;
+
+	case 'M':
+		xlast = atoi(optarg);
+		if (xlast <= 1000) {
+			fprintf(stderr, "memory must be greater than 1000\n");
+			usage();
+			exit(2);
+		}
+		break;
+
+	case 'r':
+		rate = atoi(optarg);
+		if (rate <= 0) {
+			fprintf(stderr, "rate must be a positive integer\n");
+			usage();
+			exit(2);
+		}
+		break;
+
+	case 't':
+		report = atoi(optarg);
+		if (report <= 0) {
+			fprintf(stderr, "report must be a positive integer\n");
+			usage();
+			exit(2);
+		}
+		break;
+
+	case 'R':
+		r = atoll(optarg);
+		if (r < 0) {
+			fprintf(stderr,
+				"range must not be a negative integer\n");
+			usage();
+			exit(2);
+		}
+		range = (uint32_t) r;
+		if ((range != 0) && (range != UINT32_MAX)) {
+			uint32_t s = range + 1;
+			uint64_t b = UINT32_MAX + 1, m;
+
+			m = (b / s) * s;
+			if (m == b)
+				maxrandom = 0;
+			else
+				maxrandom = (uint32_t) m;
+		}
+		break;
+
+	case 'b':
+		if (basecnt > 1) {
+			fprintf(stderr, "too many bases\n");
+			usage();
+			exit(2);
+		}
+		base[basecnt] = optarg;
+		/* decodebase(); */
+		basecnt++;
+		break;
+
+	case 'n':
+		noreport = 1;
+		gotnumreq++;
+		if (gotnumreq > 1) {
+			fprintf(stderr, "too many num-request's\n");
+			usage();
+			exit(2);
+		}
+		numreq[gotnumreq] = atoi(optarg);
+		if ((numreq[gotnumreq] < 0) ||
+		    ((numreq[gotnumreq] == 0) && (gotnumreq == 1))) {
+			fprintf(stderr,
+				"num-request must be a positive integer\n");
+			usage();
+			exit(2);
+		}
+		break;
+
+	case 'p':
+		noreport = 1;
+		period = atoi(optarg);
+		if (period <= 0) {
+			fprintf(stderr,
+				"test-period must be a positive integer\n");
+			usage();
+			exit(2);
+		}
+		break;
+
+	case 'd':
+		gotlosttime++;
+		if (gotlosttime > 1) {
+			fprintf(stderr, "too many lost-time's\n");
+			usage();
+			exit(2);
+		}
+		d = atof(optarg);
+		if ((d < 0.) || ((d == 0.) && (gotlosttime == 1))) {
+			fprintf(stderr,
+				"lost-time must be a positive number\n");
+			usage();
+			exit(2);
+		}
+		if (d > 0.)
+			losttime[gotlosttime] = d;
+		break;
+
+	case 'D':
+		noreport = 1;
+		gotmaxloss++;
+		if (gotmaxloss > 1) {
+			fprintf(stderr, "too many max-loss's\n");
+			usage();
+			exit(2);
+		}
+		pc = strchr(optarg, '%');
+		if (pc != NULL) {
+			*pc = '\0';
+			maxploss[gotmaxloss] = atof(optarg);
+			if ((maxploss[gotmaxloss] < 0) ||
+			    (maxploss[gotmaxloss] >= 100)) {
+				fprintf(stderr,
+					"invalid max-loss percentage\n");
+				usage();
+				exit(2);
+			}
+		} else {
+			maxloss[gotmaxloss] = atoi(optarg);
+			if ((maxloss[gotmaxloss] < 0) ||
+			    ((maxloss[gotmaxloss] == 0) &&
+			     (gotmaxloss == 1))) {
+				fprintf(stderr,
+					"max-loss must be a "
+					"positive integer\n");
+				usage();
+				exit(2);
+			}
+		}
+		break;
+
+	case 'l':
+		localname = optarg;
+		break;
+
+	case 'L':
+		i = atoi(optarg);
+		if ((i <= 0) || (i >65535)) {
+			fprintf(stderr,
+				"local-port must be a small positive integer\n");
+			usage();
+			exit(2);
+		}
+		if (maxport != 0) {
+			fprintf(stderr, "too many local-port's\n");
+			usage();
+			exit(2);
+		}
+		if (curport == 0)
+			minport = curport = i;
+		else
+			maxport = i;
+		break;
+
+	case 'a':
+		aggressiveness = atoi(optarg);
+		if (aggressiveness <= 0) {
+			fprintf(stderr,
+				"aggressiveness must be a positive integer\n");
+			usage();
+			exit(2);
+		}
+		break;
+
+	case 's':
+		seeded = 1;
+		seed = (unsigned int) atol(optarg);
+		break;
+
+	case 'T':
+		if (templatefile != NULL) {
+			fprintf(stderr, "template-file is already set\n");
+			usage();
+			exit(2);
+		}
+		templatefile = optarg;
+		break;
+
+	case 'O':
+		rndoffset = atoi(optarg);
+		if (rndoffset < 14) {
+			fprintf(stderr,
+				"random-offset must be greater than 14\n");
+			usage();
+			exit(2);
+		}
+		break;
+
+	case 'x':
+		diags = optarg;
+		break;
+
+	case 'P':
+		i = atoi(optarg);
+		if ((i <= 0) || (i > 65535)) {
+			fprintf(stderr,
+				"port must be a positive short integer\n");
+			usage();
+			exit(2);
+		}
+		port = (in_port_t) i;
+		break;
+
+	default:
+		usage();
+		exit(2);
+	}
+
+	/* adjust some global variables */
+	if (ipversion == 0)
+		ipversion = 4;
+	if (rate == 0)
+		rate = 100;
+	if (xlast == 0)
+		xlast = 60000;
+	if (noreport == 0)
+		report = 1;
+	if ((curport != 0) && (maxport == 0))
+		maxport = 65535;
+
+	/* when required, print the internal view of the command line */
+	if ((diags != NULL) && (strchr(diags, 'a') != NULL)) {
+		if (udp)
+			printf("UDP ");
+		printf("IPv%d", ipversion);
+		printf(" rate=%d", rate);
+		if (edns0 != 0)
+			printf(" EDNS0");
+		if (report != 0)
+			printf(" report=%d", report);
+		if (range != 0) {
+			if (strchr(diags, 'r') != NULL)
+				printf(" range=0..%d [0x%x]",
+				       range,
+				       (unsigned int) maxrandom);
+			else
+				printf(" range=0..%d", range);
+		}
+		if (basecnt != 0)
+			for (i = 0; i < basecnt; i++)
+				printf(" base[%d]='%s'", i, base[i]);
+		if (gotnumreq >= 0) {
+			if ((numreq[0] == 0) && (numreq[1] != 0))
+				printf(" num-request=*,%d", numreq[1]);
+			if ((numreq[0] != 0) && (numreq[1] == 0))
+				printf(" num-request=%d,*", numreq[0]);
+			if ((numreq[0] != 0) && (numreq[1] != 0))
+				printf(" num-request=%d,%d",
+				       numreq[0], numreq[1]);
+		}
+		if (period != 0)
+			printf(" test-period=%d", period);
+		printf(" lost-time=%g,%g", losttime[0], losttime[1]);
+		if (gotmaxloss == 0) {
+			if (maxloss[0] != 0)
+				printf(" max-loss=%d,*", maxloss[0]);
+			if (maxploss[0] != 0.)
+				printf(" max-loss=%2.2f%%,*", maxploss[0]);
+		} else if (gotmaxloss == 1) {
+			if (maxloss[0] != 0)
+				printf(" max-loss=%d,", maxloss[0]);
+			else if (maxploss[0] != 0.)
+				printf(" max-loss=%2.2f%%,", maxploss[0]);
+			else
+				printf(" max-loss=*,");
+			if (maxloss[1] != 0)
+				printf("%d", maxloss[1]);
+			else if (maxploss[1] != 0.)
+				printf("%2.2f%%", maxploss[1]);
+			else
+				printf("*");
+		}
+		printf(" aggressiveness=%d", aggressiveness);
+		if (seeded)
+			printf(" seed=%u", seed);
+		if (templatefile != NULL)
+			printf(" template-file='%s'", templatefile);
+		else if (ixann != 0)
+			printf(" Xflag");
+		if (rndoffset >= 0)
+			printf(" rnd-offset=%d", rndoffset);
+		printf(" diagnotic-selectors='%s'", diags);
+		printf("\n");
+	}
+
+	/* check local address options */
+	if ((localname == NULL) && (curport != 0)) {
+		fprintf(stderr,
+			"-l<local-addr> must be set to use -L<local-port>\n");
+		usage();
+		exit(2);
+	}
+
+	/* check template file options */
+	if ((templatefile == NULL) && (rndoffset >= 0)) {
+		fprintf(stderr,
+			"-T<template-file> must be set to "
+			"use -O<random-offset>\n");
+		usage();
+		exit(2);
+	}
+
+	/* check various template file(s) and other condition(s) options */
+	if ((templatefile != NULL) && (range > 0) && (rndoffset < 0)) {
+		fprintf(stderr,
+			"-O<random-offset> must be set when "
+			"-T<template-file> and -R<range> are used\n");
+		usage();
+		exit(2);
+	}
+
+	/* get the server argument */
+	if (optind < argc - 1) {
+		fprintf(stderr, "extra arguments?\n");
+		usage();
+		exit(2);
+	}
+	if (optind == argc - 1)
+		servername = argv[optind];
+
+	/* handle the local '-l' address/interface */
+	if (localname != NULL) {
+		/* given */
+		getlocaladdr();
+		if ((diags != NULL) && (strchr(diags, 'a') != NULL)) {
+			printf("local-addr='%s'", localname);
+			if (curport != 0)
+				printf(" local-port='%d..%d'",
+				       minport, maxport);
+			printf("\n");
+		}
+	}
+
+	/* get the server socket address */
+	if (servername == NULL) {
+		fprintf(stderr, "server is required\n");
+		usage();
+		exit(2);
+	}
+	getserveraddr(flags);
+
+	/* finish local/server socket address stuff and print it */
+	if ((diags != NULL) && (strchr(diags, 'a') != NULL))
+		printf("server='%s'\n", servername);
+	if ((localname != NULL) &&
+	    (diags != NULL) && (strchr(diags, 'a') != NULL)) {
+		char addr[NI_MAXHOST];
+
+		ret = getnameinfo((struct sockaddr *) &localaddr,
+				  sizeof(localaddr),
+				  addr,
+				  NI_MAXHOST,
+				  NULL,
+				  0,
+				  NI_NUMERICHOST);
+		if (ret != 0) {
+			fprintf(stderr,
+				"can't get the local address: %s\n",
+				gai_strerror(ret));
+			exit(1);
+		}
+		printf("local address='%s'\n", addr);
+	}
+
+	/* initialize exchange structures */
+	inits();
+
+	/* get the socket descriptor and template(s) */
+	if (templatefile == NULL)
+		build_template_query();
+	else
+		get_template_query();
+
+	/* boot is done! */
+	if (clock_gettime(CLOCK_REALTIME, &boot) < 0) {
+		perror("clock_gettime(boot)");
+		exit(1);
+	}
+
+	/* compute the next intermediate reporting date */
+	if (report != 0) {
+		dreport.tv_sec = boot.tv_sec + report;
+		dreport.tv_nsec = boot.tv_nsec;
+	}
+
+	/* seed the random generator */
+	if (seeded == 0)
+		seed = (unsigned int) (boot.tv_sec + boot.tv_nsec);
+	srandom(seed);
+
+	/* required only before the interrupted flag check */
+	(void) signal(SIGINT, interrupt);
+	(void) signal(SIGTERM, terminate);
+
+	/* threads */
+	master = pthread_self();
+	ret = pthread_create(&connector, NULL, connecting, NULL);
+	if (ret != 0) {
+		fprintf(stderr, "pthread_create: %s\n", strerror(ret));
+		exit(1);
+	}
+	ret = pthread_create(&sender, NULL, sending, NULL);
+	if (ret != 0) {
+		fprintf(stderr, "pthread_create: %s\n", strerror(ret));
+		exit(1);
+	}
+	ret = pthread_create(&receiver, NULL, receiving, NULL);
+	if (ret != 0) {
+		fprintf(stderr, "pthread_create: %s\n", strerror(ret));
+		exit(1);
+	}
+
+	/* main loop */
+	for (;;) {
+		struct timespec now, ts;
+
+		/* immediate loop exit conditions */
+		if (interrupted) {
+			if ((diags != NULL) && (strchr(diags, 'e') != NULL))
+				printf("interrupted\n");
+			break;
+		}
+		if (fatal) {
+			if ((diags != NULL) && (strchr(diags, 'e') != NULL))
+				printf("got a fatal error\n");
+			break;
+		}
+
+		loops[0]++;
+
+		/* get the date and use it */
+		if (clock_gettime(CLOCK_REALTIME, &now) < 0) {
+			perror("clock_gettime(now)");
+			fatal = 1;
+			continue;
+		}
+		if ((period != 0) &&
+		    ((boot.tv_sec + period < now.tv_sec) ||
+		     ((boot.tv_sec + period == now.tv_sec) &&
+		      (boot.tv_nsec < now.tv_nsec)))) {
+			if ((diags != NULL) && (strchr(diags, 'e') != NULL))
+				printf("reached test-period\n");
+			break;
+		}
+		if ((report != 0) &&
+		    ((dreport.tv_sec < now.tv_sec) ||
+		     ((dreport.tv_sec == now.tv_sec) &&
+		      (dreport.tv_nsec < now.tv_nsec))))
+			reporting();
+
+		/* check receive loop exit conditions */
+		if ((numreq[0] != 0) && ((int) xccount >= numreq[0])) {
+			if ((diags != NULL) && (strchr(diags, 'e') != NULL))
+				printf("reached num-connection\n");
+			break;
+		}
+		if ((numreq[1] != 0) && ((int) xscount >= numreq[1])) {
+			if ((diags != NULL) && (strchr(diags, 'e') != NULL))
+				printf("reached num-query\n");
+			break;
+		}
+		if ((maxloss[0] != 0) &&
+		    ((int) (xccount - xscount) > maxloss[0])) {
+			if ((diags != NULL) && (strchr(diags, 'e') != NULL))
+				printf("reached max-loss "
+				       "(connection/absolute)\n");
+			break;
+		}
+		if ((maxloss[1] != 0) &&
+		    ((int) (xscount - xrcount) > maxloss[1])) {
+			if ((diags != NULL) && (strchr(diags, 'e') != NULL))
+				printf("reached max-loss "
+				       "(query/absolute)\n");
+			break;
+		}
+		if ((maxploss[0] != 0.) &&
+		    (xccount > 10) &&
+		    (((100. * (xccount - xscount)) / xccount) > maxploss[1])) {
+			if ((diags != NULL) && (strchr(diags, 'e') != NULL))
+				printf("reached max-loss "
+				       "(connection/percent)\n");
+			break;
+		}
+		if ((maxploss[1] != 0.) &&
+		    (xscount > 10) &&
+		    (((100. * (xscount - xrcount)) / xscount) > maxploss[1])) {
+			if ((diags != NULL) && (strchr(diags, 'e') != NULL))
+				printf("reached max-loss "
+				       "(query/percent)\n");
+			break;
+		}
+
+		/* waiting 1ms */
+		memset(&ts, 0, sizeof(ts));
+		ts.tv_nsec = 1000000;
+		(void) clock_nanosleep(CLOCK_REALTIME, 0, &ts, NULL);
+	}
+
+	/* after main loop: finished */
+	if (clock_gettime(CLOCK_REALTIME, &finished) < 0)
+		perror("clock_gettime(finished)");
+
+	/* threads */
+	(void) pthread_cancel(connector);
+	(void) pthread_cancel(sender);
+	(void) pthread_cancel(receiver);
+
+	/* main statictics */
+	printf("connect: %llu, sent: %llu, received: %llu\n",
+	       (unsigned long long) xccount,
+	       (unsigned long long) xscount,
+	       (unsigned long long) xrcount);
+	printf("embryonics: %lld (%.1f%%)\n",
+	       (long long) (xccount - xscount),
+	       (100. * (xccount - xscount)) / xccount);
+	printf("drops: %lld (%.1f%%)\n",
+	       (long long) (xscount - xrcount),
+	       (100. * (xscount - xrcount)) / xscount);
+	printf("total losses: %lld (%.1f%%)\n",
+	       (long long) (xccount - xrcount),
+	       (100. * (xccount - xrcount)) / xccount);
+	printf("local limits: %llu, bad connects: %llu, "
+	       "connect timeouts: %llu\n",
+	       (unsigned long long) locallimit,
+	       (unsigned long long) badconn,
+	       (unsigned long long) collconn);
+	printf("bad sends: %llu, bad recvs: %llu, recv timeouts: %llu\n",
+	       (unsigned long long) badsent,
+	       (unsigned long long) recverr,
+	       (unsigned long long) collsent);
+	printf("too shorts: %llu, bad IDs: %llu, not responses: %llu\n",
+	       (unsigned long long) tooshort,
+	       (unsigned long long) badid,
+	       (unsigned long long) notresp);
+	printf("rcode counters:\n noerror: %llu, formerr: %llu, "
+	       "servfail: %llu\n "
+	       "nxdomain: %llu, noimp: %llu, refused: %llu, others: %llu\n",
+	       (unsigned long long) rcodes[NS_RCODE_NOERROR],
+	       (unsigned long long) rcodes[NS_RCODE_FORMERR],
+	       (unsigned long long) rcodes[NS_RCODE_SERVFAIL],
+	       (unsigned long long) rcodes[NS_RCODE_NXDOMAIN],
+	       (unsigned long long) rcodes[NS_RCODE_NOIMP],
+	       (unsigned long long) rcodes[NS_RCODE_REFUSED],
+	       (unsigned long long) rcodes[NS_RCODE_LAST]);
+
+	/* print the rates */
+	if (finished.tv_sec != 0) {
+		double dall, erate[3];
+
+		dall = (finished.tv_nsec - boot.tv_nsec) / 1e9;
+		dall += finished.tv_sec - boot.tv_sec;
+		erate[0] = xccount / dall;
+		erate[1] = xscount / dall;
+		erate[2] = xrcount / dall;
+		printf("rates: %.0f,%.0f,%.0f (target %d)\n",
+		       erate[0], erate[1], erate[2], rate);
+	}
+
+	/* rate processing instrumentation */
+	if ((diags != NULL) && (strchr(diags, 'i') != NULL)) {
+		printf("loops: %llu,%llu,%llu,%llu\n",
+		       (unsigned long long) loops[0],
+		       (unsigned long long) loops[1],
+		       (unsigned long long) loops[2],
+		       (unsigned long long) loops[3]);
+		printf("shortwait: %llu,%llu,%llu\n",
+		       (unsigned long long) shortwait[0],
+		       (unsigned long long) shortwait[1],
+		       (unsigned long long) shortwait[2]);
+		printf("compconn: %llu, lateconn: %llu\n",
+		       (unsigned long long) compconn,
+		       (unsigned long long) lateconn);
+		printf("badconn: %llu, collconn: %llu, "
+		       "recverr: %llu, collsent: %llu\n",
+		       (unsigned long long) badconn,
+		       (unsigned long long) collconn,
+		       (unsigned long long) recverr,
+		       (unsigned long long) collsent);
+		printf("memory: used(%d) / allocated(%d)\n",
+		       xused, xlast);
+	}
+
+	/* round-time trip statistics */
+	if (xrcount != 0) {
+		double avg, stddev;
+
+		avg = dsum / xrcount;
+		stddev = sqrt(dsumsq / xrcount - avg * avg);
+		printf("RTT: min/avg/max/stddev:  %.3f/%.3f/%.3f/%.3f ms\n",
+		       dmin * 1e3, avg * 1e3, dmax * 1e3, stddev * 1e3);
+	}
+	printf("\n");
+
+	/* template(s) */
+	if ((diags != NULL) && (strchr(diags, 'T') != NULL)) {
+		size_t n;
+
+		printf("length = 0x%zx\n", length_query);
+		if (random_query > 0)
+			printf("random offset = %zu\n", random_query);
+		printf("content:\n");
+		for (n = 0; n < length_query; n++) {
+			printf("%s%02hhx",
+			       (n & 15) == 0 ? "" : " ",
+			       template_query[n]);
+			if ((n & 15) == 15)
+				printf("\n");
+		}
+		if ((n & 15) != 15)
+			printf("\n");
+		printf("\n");
+	}
+
+	/* compute the exit code (and exit) */
+	if (fatal)
+		exit(1);
+	else if ((xccount == xscount) && (xscount == xrcount))
+		exit(0);
+	else
+		exit(3);
+}