#! /bin/sh

# Guess values for system-dependent variables and create Makefiles.

# Generated by GNU Autoconf 2.62 for libpng 1.2.32.

#

# Report bugs to <png-mng-implement@lists.sourceforge.net>.

#

# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,

# 2002, 2003, 2004, 2005, 2006, 2007, 2008 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

# PATH needs CR

# 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_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

if (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

# Support unset when possible.

if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then

  as_unset=unset

else

  as_unset=false

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.

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); exit 1; }

fi

# Work around bugs in pre-3.0 UWIN ksh.

for as_var in ENV MAIL MAILPATH

do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var

done

PS1='$ '

PS2='> '

PS4='+ '

# NLS nuisances.

LC_ALL=C

export LC_ALL

LANGUAGE=C

export LANGUAGE

# Required to use basename.

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

# Name of the executable.

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'`

# CDPATH.

$as_unset CDPATH

if test "x$CONFIG_SHELL" = x; then

  if (eval ":") 2>/dev/null; then

  as_have_required=yes

else

  as_have_required=no

fi

  if test $as_have_required = yes &&	 (eval ":

(as_func_return () {

  (exit \$1)

}

as_func_success () {

  as_func_return 0

}

as_func_failure () {

  as_func_return 1

}

as_func_ret_success () {

  return 0

}

as_func_ret_failure () {

  return 1

}

exitcode=0

if as_func_success; then

  :

else

  exitcode=1

  echo as_func_success failed.

fi

if as_func_failure; then

  exitcode=1

  echo as_func_failure succeeded.

fi

if as_func_ret_success; then

  :

else

  exitcode=1

  echo as_func_ret_success failed.

fi

if as_func_ret_failure; then

  exitcode=1

  echo as_func_ret_failure succeeded.

fi

if ( set x; as_func_ret_success y && test x = \"\$1\" ); then

  :

else

  exitcode=1

  echo positional parameters were not saved.

fi

test \$exitcode = 0) || { (exit 1); exit 1; }

(

  as_lineno_1=\$LINENO

  as_lineno_2=\$LINENO

  test \"x\$as_lineno_1\" != \"x\$as_lineno_2\" &&

  test \"x\`expr \$as_lineno_1 + 1\`\" = \"x\$as_lineno_2\") || { (exit 1); exit 1; }

") 2> /dev/null; then

  :

else

  as_candidate_shells=

    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR

for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH

do

  IFS=$as_save_IFS

  test -z "$as_dir" && as_dir=.

  case $as_dir in

	 /*)

	   for as_base in sh bash ksh sh5; do

	     as_candidate_shells="$as_candidate_shells $as_dir/$as_base"

	   done;;

       esac

done

IFS=$as_save_IFS

      for as_shell in $as_candidate_shells $SHELL; do

	 # Try only shells that exist, to save several forks.

	 if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&

		{ ("$as_shell") 2> /dev/null <<\_ASEOF

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

:

_ASEOF

}; then

  CONFIG_SHELL=$as_shell

	       as_have_required=yes

	       if { "$as_shell" 2> /dev/null <<\_ASEOF

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_func_return () {

  (exit $1)

}

as_func_success () {

  as_func_return 0

}

as_func_failure () {

  as_func_return 1

}

as_func_ret_success () {

  return 0

}

as_func_ret_failure () {

  return 1

}

exitcode=0

if as_func_success; then

  :

else

  exitcode=1

  echo as_func_success failed.

fi

if as_func_failure; then

  exitcode=1

  echo as_func_failure succeeded.

fi

if as_func_ret_success; then

  :

else

  exitcode=1

  echo as_func_ret_success failed.

fi

if as_func_ret_failure; then

  exitcode=1

  echo as_func_ret_failure succeeded.

fi

if ( set x; as_func_ret_success y && test x = "$1" ); then

  :

else

  exitcode=1

  echo positional parameters were not saved.

fi

test $exitcode = 0) || { (exit 1); exit 1; }

(

  as_lineno_1=$LINENO

  as_lineno_2=$LINENO

  test "x$as_lineno_1" != "x$as_lineno_2" &&

  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2") || { (exit 1); exit 1; }

_ASEOF

}; then

  break

fi

fi

      done

      if test "x$CONFIG_SHELL" != x; then

  for as_var in BASH_ENV ENV

	do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var

	done

	export CONFIG_SHELL

	exec "$CONFIG_SHELL" "$as_myself" ${1+"$@"}

fi

    if test $as_have_required = no; then

  echo This script requires a shell more modern than all the

      echo shells that I found on your system.  Please install a

      echo modern shell, or manually run the script under such a

      echo shell if you do have one.

      { (exit 1); exit 1; }

fi

fi

fi

(eval "as_func_return () {

  (exit \$1)

}

as_func_success () {

  as_func_return 0

}

as_func_failure () {

  as_func_return 1

}

as_func_ret_success () {

  return 0

}

as_func_ret_failure () {

  return 1

}

exitcode=0

if as_func_success; then

  :

else

  exitcode=1

  echo as_func_success failed.

fi

if as_func_failure; then

  exitcode=1

  echo as_func_failure succeeded.

fi

if as_func_ret_success; then

  :

else

  exitcode=1

  echo as_func_ret_success failed.

fi

if as_func_ret_failure; then

  exitcode=1

  echo as_func_ret_failure succeeded.

fi

if ( set x; as_func_ret_success y && test x = \"\$1\" ); then

  :

else

  exitcode=1

  echo positional parameters were not saved.

fi

test \$exitcode = 0") || {

  echo No shell found that supports shell functions.

  echo Please tell bug-autoconf@gnu.org about your system,

  echo including any error possibly output before this message.

  echo This can help us improve future autoconf versions.

  echo Configuration will now proceed without shell functions.

}

  as_lineno_1=$LINENO

  as_lineno_2=$LINENO

  test "x$as_lineno_1" != "x$as_lineno_2" &&

  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2" || {

  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO

  # uniformly replaced by the line number.  The first 'sed' inserts a

  # line-number line after each line using $LINENO; the second 'sed'

  # does the real work.  The second script uses 'N' to pair each

  # line-number line with the line containing $LINENO, and appends

  # trailing '-' during substitution so that $LINENO is not a special

  # case at line end.

  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the

  # scripts with optimization help from Paolo Bonzini.  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

   { (exit 1); exit 1; }; }

  # 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

}

if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then

  as_dirname=dirname

else

  as_dirname=false

fi

ECHO_C= ECHO_N= ECHO_T=

case `echo -n x` in

-n*)

  case `echo 'x\c'` in

  *c*) ECHO_T='	';;	# ECHO_T is single tab character.

  *)   ECHO_C='\c';;

  esac;;

*)

  ECHO_N='-n';;

esac

if expr a : '\(a\)' >/dev/null 2>&1 &&

   test "X`expr 00001 : '.*\(...\)'`" = X001; then

  as_expr=expr

else

  as_expr=false

fi

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 -p'.

    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||

      as_ln_s='cp -p'

  elif ln conf$$.file conf$$ 2>/dev/null; then

    as_ln_s=ln

  else