#!/bin/sh
# $Id: configure,v 1.36 2001/12/17 16:18:18 ukai Exp $
#	Configuration.
#

#
if ./which uname > /dev/null ; then
  sysname=`uname -s`
  sysversion=`uname -r`
  platform=`uname -m`
elif [ -f /usr/sony/bin/machine -a -f /etc/osversion ]; then
  sysname='NEWS-OS'
  sysversion=`sed 's/[^ ]* [^ ]* //' /etc/osversion`
  platform=`/usr/sony/bin/machine`
fi

host=`hostname`

sysversion1=`echo $sysversion | awk -F. '{print $1}'`
sysversion2=`echo $sysversion | awk -F. '{print $2}'`
sysversion3=`echo $sysversion | awk -F. '{print $3}'`

echo $sysname $sysversion1 $sysversion2 $sysversion3 /$platform at $host

if [ -f config.param ] ; then
	confhost=`awk 'NR==1{print $4}' config.param`
	if [ "$confhost" = "$host" ] ; then
          . ./config.param
	fi
fi

echo "# Configuration at $host" > config.param

# parameters:

prefix=/usr/local
ssl_includedir=
ssl_libdir=
gc_includedir=
gc_libdir=
mimetypes=

all_yes=0
while [ $# -gt 0 ]
do
  case "$1" in
  -yes|--yes|-nonstop|--nonstop)
    all_yes=1
    echo "Setting all parameters to the default..."
    ;;
  -prefix|--prefix)
    prefix=$2
    shift
    ;;
  -prefix=*|--prefix=*)
    prefix=`expr "$1" : "-*prefix=\(.*\)"`
    ;;
  -bindir=*|--bindir=*)
    bindir=`expr "$1" : "-*bindir=\(.*\)"`
    ;;
  -libdir=*|--libdir=*)
    libdir=`expr "$1" : "-*libdir=\(.*\)"`
    ;;
  -helpdir=*|--helpdir=*)
    helpdir=`expr "$1" : "-*helpdir=\(.*\)"`
    ;;
  -sysconfdir=*|--sysconfdir=*)
    sysconfdir=`expr "$1" : "-*sysconfdir=\(.*\)"`
    ;;
  -lang=en|--lang=en|-lang=EN|--lang=EN)
    lang=EN
    ;;
  -lang=ja|--lang=ja|-lang=ja|--lang=JA)
    lang=JA
    ;;
  -model=baby|--model=baby)
    dmodel=1
    ;;
  -model=little|--model=little)
    dmodel=2
    ;;
  -model=mouse|--model=mouse)
    dmodel=3
    ;;
  -model=cookie|--model=cookie)
    dmodel=4
    ;;
  -model=monster|--model=monster)
    dmodel=5
    ;;
  -model=custom|--model=custom)
    dmodel=6
    ;;
  -code=*|--code=*)
    display_code=`expr "$1" : "-*code=\(.*\)"`
    ;;
  -cflags=*|--cflags=*)
    dcflags=`echo $1 | sed -e 's/-*cflags=//'`
    ;;
  --ssl-includedir=*)
    ssl_includedir=`expr "$1" : "--ssl-includedir=\(.*\)"`
    ;;
  --ssl-libdir=*)
    ssl_libdir=`expr "$1" : "--ssl-libdir=\(.*\)"`
    ;;
  --gc-includedir=*)
    gc_includedir=`expr "$1" : "--gc-includedir=\(.*\)"`
    ;;
  --gc-libdir=*)
    gc_libdir=`expr "$1" : "--gc-libdir=\(.*\)"`
    ;;
  --mimetypes=*)
    mimetypes=`expr "$1" : "--mimetypes=\(.*\)"`
    ;;

  -help|--help)
    echo "-yes, -nonstop  Set all parameters to the default"
    echo "-prefix=DIR     Specify prefix (default: /usr/local)"
    echo "-bindir=DIR     user executable in DIR (default: PREFIX/bin)"
    echo "-libdir=DIR     program executables in DIR (default: PREFIX/lib/w3m)"
    echo "-helpdir=DIR    help file in DIR (default: PREFIX/share/w3m)"
    echo "-sysconfdir=DIR w3mconfig in DIR [PREFIX/etc/w3m]"
    echo "-lang=(en|ja)   Specify default language"
    echo "-model=(baby|little|mouse|cookie|monster|custom)"
    echo "                Specify default model"                     
    echo "-code=(S|E|j|N|n|m)"
    echo "                Specify default kanji code"
    echo "-cflags=FLAGS   Specify C flags"
    echo "--ssl-includedir=DIR	specify OpenSSL include dir"
    echo "--ssl-libdir=DIR	specify OpenSSL lib dir"
    echo "--gc-includedir=DIR	specify Boehm-GC include dir"
    echo "--gc-libdir=DIR	specify Boehm-GC lib dir"
    echo "--mimetypes=PATH	specify mime.types path"
    echo "-help           Display help"
    exit 0
    ;;
  esac
  shift
done

# Version number of Boehm-GC library comes with w3m.
# version number: JMMAAA  J: major MM: minor AAA: alpha
#   Alpha number of non-alpha version is 255.
# version 4.14alpha1 => 414002
mygcversion=600255

if [ -z "`echo -n aho | grep n`" ] ; then
Echo()
{
	echo -n "$*"
}
else
Echo()
{
	echo "$*\c"
}
fi


do_sigtest()
{
  echo "#include <signal.h>" > _zmachdep.c
  if [ "$2" = void ]; then
    echo "$1 _handler($2) {}" >> _zmachdep.c
  else
    echo "$1 _handler($2 x) {}" >> _zmachdep.c
  fi
  echo "int main(void) { $1 (*hdl)($2); hdl = signal(SIGINT,_handler); return 0; }" >> _zmachdep.c
  $cc $cflags -o _zmachdep _zmachdep.c > _zwarning 2>&1 
  stat=$?
  warning=`cat _zwarning`
  rm -f _zwarning
}

readdir() { 
  if [ "$all_yes" = 0 ]; then
    read __dir
  else
    __dir=$1
    echo "$1"
  fi
  if [ -z "$__dir" ]; then
    _dir=$1
  else
    _dir=`echo "$__dir"|sed -e "s;^~;$HOME;"`
  fi
}

readanswer() {
  var=$1
  dflt=$2
  ok=$3
  if [ "$all_yes" = 0 -o -z "$dflt$ok" ]; then
    read ans
    if [ -z "$ans" ]; then
      ans=$dflt
    fi
  else
    ans=$dflt
    echo "$ans"
  fi
  eval $var='$ans'
}

yesno() {
  var=$1
  dflt=$2
  ddflt=$3
  if [ -z "$dflt" ]; then
    dflt=$ddflt
  fi
  if [ "$dflt" = y ]; then
    ndflt=n
  else
    ndflt=y
  fi
  Echo "[$dflt]? "
  if [ "$all_yes" = 0 ]; then
    read ks_ans
  else
    ks_ans=$dflt
    echo "$dflt"
  fi
  if [ "$ks_ans" = "$ndflt" ]; then
    eval $var='$ndflt'
  else
    eval $var='$dflt'
  fi
}

#
# def_param "name" "default_value"
# =>
#  $name=${name:-$default_value}
#  def_$name='#define $NAME' (if $name=y)
#  def_$name='#undef $NAME'  (otherwise)
#
def_param() {
 flag=$1
 eval "fvar=\$$flag"
 dflt=$2
 if [ -z "$fvar" ]; then
   eval "fvar=$dflt"
 fi
 def=`echo $flag | tr '[a-z]' '[A-Z]'`
 if [ "$fvar" = "y" ]; then
   eval "def_$flag='#define $def'"
 else
   eval "def_$flag='#undef $def'"
 fi
 eval "echo $flag=$fvar >> config.param"
}

#
# ask_choice "prompt" "var"
#   "choice-1" "value-1" "description-1" .. .
#   "choice-2" "value-2" "description-2" .. .
# =>
#  $var=${value-<n>}
#  def_$var='#define $VAR ${value-<n>}'
# 
ask_choice() {
  prompt=$1
  var=$2
  def=`echo $var | tr '[a-z]' '[A-Z]'`
  shift; shift
  list="$@"

  echo "$prompt"
  varvar=
  # check old value
  eval "old_dvar=\$$var"
  set -- $list
  while [ -n "$1" -a -n "$2" ]; do
    c=$1; v=$2; shift; shift;
    case $v in
    $old_dvar) dc=$c; dvar=$old_dvar;;
    *) ;;
    esac
    while [ "$1" != "." ]; do
      shift;
    done
    shift
  done
  if [ "$all_yes" = 1 ]; then
    eval "varvar=$dc"
  fi

  while [ -z "$varvar" ];
  do
    set -- $list
    prompt="["
    while [ -n "$1" -a -n "$2" ]; do
       c=$1; v=$2;
       shift; shift;
       Echo "$c .."
       while [ "$1" != "." ]; do
          Echo " $1"; shift
       done
       echo " ($def=$v)"
       shift
       prompt="$prompt$c"
    done
    prompt="$prompt]? "
    Echo "$prompt"
    if [ -n "$dvar" ]; then
       Echo "(default: $dc - $dvar)"
    fi
    read REPLY
    if [ -z "$REPLY" ]; then
       REPLY=$dc
    fi
    set -- $list
    while [ -n "$1" -a -n "$2" ]; do
       case $REPLY in
       $1) eval "varvar=$1"
	   break
           ;;
       esac
       shift; shift;
       while [ "$1" != "." ]; do
           shift;
       done
       shift
    done
  done
  Echo "You select"
  set -- $list
  while [ -n "$1" -a -n "$2" ]; do
    c=$1; v=$2; shift; shift
    case $varvar in
    $c) 
       while [ "$1" != "." ]; do
         Echo " $1"; shift
       done
       shift
       eval "def_$var='#define $def $v'"
       eval "$var=$v"
       eval "echo $var=$v >> config.param";
       echo " $def=$v"
       break
       ;;
    *) while [ "$1" != "." ]; do
    	shift;
       done
       shift
       ;;
    esac
  done
}

#
# ask_param "prompt" "name" "default_value"
# =>
#  ask user
#  def_param "name" "default_value"
#
ask_param() {
 prompt=$1
 flag=$2
 eval "fvar=\$$flag"
 dflt=$3
 Echo "$prompt "
 if [ "$all_yes" = 0 ]; then
    yesno $flag $fvar $dflt
 fi
 def_param $flag $dflt
 if [ "$all_yes" = 1 ]; then
   eval "fvar=\$$flag"
   if [ "$fvar" = y ]; then
      echo ".... yes"
   else
      echo ".... no"
   fi
 fi
}

find_ssl() {
  sslinclude=""
  for i1 in $ssl_includedir /usr /usr/local $prefix
  do
    for i2 in /openssl /ssl / 
    do
      if [ "$i2" = "/" ]; then i2=''; fi
      dirname=${i1}${i2}
      if [ -f $dirname/include/ssl.h ]; then
        sslinclude="-I${dirname}/include"
      elif [ -f $dirname/include/openssl/ssl.h ]; then
        sslinclude="-I${dirname}/include/openssl -I${dirname}/include"
      fi
      for i3 in lib/openssl lib
      do
        dirname=${i1}${i2}/${i3}
        for ext in a $so_ext
        do
          if [ -f $dirname/libssl.$ext -o -f $dirname/libcrypto.$ext ]; then
            if [ "$ssllib" = -L${dirname} ]; then
              ssllib="-L${dirname}"
            else
              ssllib="$ssllib -L${dirname}"
            fi
          fi
        done
      done
    done
  done
  if [ -f "$ssl_libdir/libssl.$ext" -o -f "$ssl_libdir/libcrypto.$ext" ]; then
      ssllib="-L$ssl_libdir $ssllib"
  fi
  ssllib="$ssllib -lssl -lcrypto"
  if [ "$sslinclude" = "" ]; then
    echo "Where is ssl.h? (for example, /usr/crypto/include)"
    Echo ":"
    read ks_ans
    sslinclude="-I${ks_ans}"
    if [ -d $ks_ans/openssl ]; then
      sslinclude="${sslinclude} -I${ks_ans}/openssl"
    fi
    echo "Where is libssl.a? (for example, /usr/crypto/lib)"
    Echo ":"
    read ks_ans
    ssllib="-L${ks_ans} -lssl -lcrypto"
  fi
}

#--------------------------------------------------------------
if [ -n "$USER" ]; then
	user=$USER
elif [ -n "$LOGNAME" ]; then
	user=$LOGNAME
elif [ -n "`whoami`" ]; then
	user=`whoami`
else
#	Echo "Who are you? "
#	read user
	user=nobody
fi

echo "%"
echo "% Hello $user. Let's start configuration process for w3m."
echo "% Please answer some questions."
echo "%"

extension=
def_use_binstream='#undef USE_BINMODE_STREAM'

topdir=$prefix
special_sys=''
case "$sysname" in
  aix | AIX )
    special_sys="#define AIX"
  ;;
  CYGWIN* )
    sysname='CYGWIN'
    special_sys="#define CYGWIN $sysversion1"
    if [ $sysversion1 -eq 0 ]; then
      topdir=/cygnus/cygwin-b20/H-i586-cygwin32
    fi
    extension='.exe'
    def_use_binstream='#define USE_BINMODE_STREAM'
  ;;
  OS/2 )
    extension='.exe'
    def_use_binstream='#define USE_BINMODE_STREAM'
  ;;
  NetBSD )
# Newer NetBSD system doesn't define 'unix' symbol anymore, but GC library
# requires it.
    special_sys="#define unix"
  ;;
esac

# determine shared object extension
so_ext=so
case "$sysname" in
  HP-UX )
    so_ext=sl
  ;;
  Darwin )
    so_ext=dylib
  ;;
esac

d_bindir=$bindir
if [ -z "$d_bindir" ]; then
  d_bindir="$topdir/bin"
fi
echo "Which directory do you want to put the binary?"
Echo "(default: $d_bindir) "
readdir "$d_bindir"
bindir=$_dir
echo "bindir='$bindir'" >> config.param

d_libdir=$libdir
if [ -z "$d_libdir" ]; then
  case "$sysname" in
  *BSD)
    d_libdir="$topdir/libexec/w3m"
  ;;
  *)
    d_libdir="$topdir/lib/w3m"
  ;;
  esac
fi
echo "Which directory do you want to put the support binary files?"
Echo "(default: $d_libdir) "
readdir "$d_libdir"
libdir=$_dir
echo "libdir='$libdir'" >> config.param

d_helpdir=$helpdir
if [ -z "$d_helpdir" ]; then
  d_helpdir="$topdir/lib/w3m"
fi
echo "Which directory do you want to put the helpfile?"
Echo "(default: $d_helpdir) "
readdir "$d_helpdir"
helpdir=$_dir
echo "helpdir='$helpdir'" >> config.param

d_sysconfdir=$sysconfdir
if [ -z "$d_sysconfdir" ]; then
  d_sysconfdir="$topdir/etc/w3m"
fi
echo "Which directory do you want to put the system wide w3m configuration file?"
Echo "(default: $d_sysconfdir) "
readdir "$d_sysconfdir"
sysconfdir=$_dir
echo "sysconfdir='$sysconfdir'" >> config.param

ask_choice "Which language do you prefer?" lang \
    1 JA "Japanese (charset ISO-2022-JP, EUC-JP, Shift_JIS)" . \
    2 EN "English (charset US_ASCII, ISO-8859-1, etc)" .

if [ "$lang" = JA ]; then
  ask_choice "What is your display kanji code?" display_code \
    S S "Shift JIS" . \
    E E "EUC-JP" . \
    j j 'JIS: ESC $@ - ESC (J' . \
    N N 'JIS: ESC $B - ESC (J' . \
    n n 'JIS: ESC $B - ESC (B' . \
    m m 'JIS: ESC $@ - ESC (B' .
 system_code=
 if [ "$display_code" = "S" ]; then
   system_code=S
   def_param system_code S
 else
   system_code=E
   def_param system_code E
 fi
else
  display_code=x
  system_code=x
  def_param display_code x
  def_param system_code x
fi

# editing?
ask_param "Use Lynx-like key binding as default" use_lynx_key n
if [ "$use_lynx_key" = y ]; then
  keymap_file="keybind_lynx"
else
  keymap_file="keybind"
fi

# terminal capabilities
if [ "$lang" = "JA" ]; then
  ask_param "Use 2-byte character for table border, item, etc." kanji_symbols y
else
  kanji_symbols=n
  def_param kanji_symbols n
fi
ask_param "ANSI color escape sequences support" use_ansi_color n

if [ "$lang" = "JA" ]; then
  if [ "$use_lynx_key" = y ]; then
    helpfile="w3mhelp-lynx_ja.html"
  else
    helpfile="w3mhelp-w3m_ja.html"
  fi
else
  if [ "$use_lynx_key" = y ]; then
    helpfile="w3mhelp-lynx_en.html"
  else  
    helpfile="w3mhelp-w3m_en.html"
  fi
fi

###

echo ""
echo "Let's do some configurations. Choose config option among the list."
echo ""
echo "1 - Baby model    (no color, no menu, no mouse, no cookie, no SSL)"
echo "2 - Little model  (color, menu, no mouse, no cookie, no SSL)"
echo "3 - Mouse model   (color, menu, mouse, no cookie, no SSL)"
echo "4 - Cookie model  (color, menu, mouse, cookie, no SSL)"
echo "5 - Monster model (with everything; you need openSSL library)"
echo "6 - Customize"
echo ""
Echo "Which? "
if [ -n "$dmodel" ]; then
  Echo "(default: $dmodel) "
fi

include_opt=y
while :
do
readanswer ans "$dmodel"
if [ -z "$ans" -a -n "$dmodel" ]; then
  ans=$dmodel
fi
dmodel_save="$dmodel"
dmodel=$ans
case "$ans" in
  1)
    use_color=n;
    use_menu=n;
    use_mouse=n;
    use_cookie=n;
    use_ssl=n;
    include_opt=n
    customized=y
    ;;
  2)
    use_color=y;
    use_menu=y;
    use_mouse=n;
    use_cookie=n;
    use_ssl=n;
    customized=y
    ;;
  3)
    use_color=y;
    use_menu=y;
    use_mouse=y;
    use_cookie=n;
    use_ssl=n;
    customized=y
    ;;
  4)
    use_color=y;
    use_menu=y;
    use_mouse=y;
    use_cookie=y;
    use_ssl=n;
    customized=y
    ;;
  5)
    use_color=y;
    use_menu=y;
    use_mouse=y;
    use_cookie=y;
    use_ssl=y;
    customized=y
    ;;
  6)
    if [ "$dmodel_save" = 6 ]; then
      customized=y
    else
      customized=n
    fi
    ;;
  *)
    echo "Please input 1-6."
    Echo "Which? "
    continue
  ;;
esac
break
done

if [ -n "$dmodel" ]; then
  echo "dmodel=$dmodel" >> config.param
fi

save_all_yes=$all_yes
if [ "$customized" = y ]; then
 all_yes=1
fi

ask_param "Use color ESC sequence for kterm/pxvt" use_color y
ask_param "Use mouse (requires xterm/kterm/gpm/sysmouse)" use_mouse n
ask_param "Use popup menu" use_menu y
ask_param "Use cookie" use_cookie n
ask_param "Use SSL (need OpenSSL library; Please see http://www.openssl.org/)" use_ssl n

all_yes=$save_all_yes


if [ "$use_ssl" = y ]; then
 find_ssl
fi
if [ "$use_ssl" = y ]; then
  ask_param "SSL verification support (SSL library >= version 0.8)" use_ssl_verify n
else
  def_param "use_ssl_verify" n
fi

# protocols?
ask_param "NNTP support" use_nntp $include_opt
ask_param "Gopher support" use_gopher $include_opt

# obsoleted?
# ask_param "Use matrix in rendering table" use_matrix n

ask_param "Use alarm support code" use_alarm $include_opt
ask_param "Use mark operation" use_mark $include_opt

### only use config.param
def_param use_dict n
def_param use_history y
def_param use_bg_color y
def_param format_nice n
def_param id_ext y
def_param use_bufinfo y
def_param use_egd y
def_param enable_remove_trailingspaces n
def_param menu_thin_frame n
def_param emacs_like_lineedit $include_opt
def_param vi_prec_num $include_opt
def_param label_topline $include_opt
def_param nextpage_topline $include_opt
def_param ftppass_hostnamegen $include_opt

def_param table_expand n
def_param table_no_compact n
def_param nowrap y
def_param matrix y

if [ -z "$ded" ] ; then ded=`./which \vi` ; fi
if [ -n  "`echo $ded | grep 'no'`" ] ; then ded=vi ; fi
echo "Input your favorite editor program."
Echo "(Default: $ded) "
readdir "$ded"
editor=$_dir
echo "ded='$editor'" >> config.param

if [ -z "$dmail" ] ; then 
  if ./which \mailx > /dev/null
  then
    dmail=`./which \mailx` 
  else
    dmail=`./which \mail`
  fi
  if [ -n  "`echo $dmail | grep 'no'`" ] ; then dmail=mailx ; fi
fi
echo "Input your favorite mailer program."
Echo "(Default: $dmail) "
readdir "$dmail"
mailer=$_dir
echo "dmail='$mailer'" >> config.param


if [ -z "$dbrowser" ] ; then 
  if ./which netscape > /dev/null
  then
    dbrowser=`./which netscape` 
  elif ./which iexplore > /dev/null
  then
    dbrowser=`./which iexplore`
  else
    dbrowser=`./which lynx`
  fi
  if [ -n  "`echo $dbrowser | grep 'no'`" ] ; then dbrowser=netscape ; fi
fi
echo "Input your favorite external browser program."
Echo "(Default: $dbrowser) "
readdir "$dbrowser"
brz=$_dir
echo "dbrowser='$brz'" >> config.param

if [ -z "$dcc" ]; then 
  if [ -n "$CC" ]; then
    dcc="$CC"
  elif ./which gcc >/dev/null ; then
    dcc=gcc
  else
    dcc=cc
  fi
fi
echo "Input your favorite C-compiler."
Echo "(Default: $dcc) "
readanswer cc "$dcc"
echo "dcc='$cc'" >> config.param

if [ -z "$dcflags" ]; then
  dcflags=${CFLAGS-"-O"}
fi
echo "Input your favorite C flags."
Echo "(Default: $dcflags) "
readanswer cflags "$dcflags"
echo "dcflags='$cflags'" >> config.param

bsdinclude=''
if [ ! -f /usr/include/netinet/in.h ] ; then
	if [ -f /usr/include/bsd/netinet/in.h ] ; then
		bsdinclude='-I/usr/include/bsd'
	elif [ -f /usr/bsdinclude/netinet/in.h ] ; then
		bsdinclude='-I/usr/bsdinclude'
	else
		echo "It seems you don't have some include files for networking."
	fi
fi

termlib=''
cat > _zmachdep.c << EOF
main()
{
  char bp[100];
  tgetent(bp,getenv("TERM"));
}
EOF

if [ -z "$dtermlib" ]; then
  TERM_LIBS='termcap termlib terminfo mytinfo curses ncurses'

  for lib in $TERM_LIBS
  do
    for tlibdir in /lib /usr/lib /usr/local/lib /usr/ucblib /usr/ccslib /usr/ccs/lib $prefix/lib
    do
      if [ -f $tlibdir/lib$lib.a -o -f $tlibdir/lib$lib.$so_ext ] ; then 
        # check if the lib works...
        Echo "Terminal library -l$lib found at $tlibdir, "
        if $cc $cflags -o _zmachdep _zmachdep.c -l$lib > /dev/null 2>&1
        then
          echo "and it seems to work."
          termlib=-l$lib
        else
          echo "but it doesn't seem to work."
        fi
      fi
    done
  done
  if [ -z "$termlib" ]; then
    Echo "termcap/curses library not found; I hope -ltermcap works."
    termlib='-ltermcap'
  fi
  dtermlib=$termlib
fi
echo 'Which terminal library do you want to use? (type "none" if you do not need one)'
Echo "(default: $dtermlib) "
readanswer termlib "$dtermlib"
if [ "$termlib" = none ]; then
  termlib=""
else
  echo "dtermlib='$termlib'" >> config.param
fi

## Setup for math library
if [ $sysname = Rhapsody -o $sysname = "Mac OS" ]; then
  echo "MacOS X doesn't need -lm."
  mathlib=""
else
  mathlib="-lm"
fi

## look for GPM library
use_gpm=""
gpmlib=""
if [ "$use_mouse" = y ]; then
  for tlibdir in /lib /usr/lib /usr/local/lib $prefix/lib
  do
    if [ -f $tlibdir/libgpm.a -o -f $tlibdir/libgpm.so ]; then
      echo "GPM library found."
      def_use_gpm="#define USE_GPM"
      gpmlib="-lgpm"
    fi
  done
fi

case $sysname in
  freebsd|FreeBSD)
    def_use_sysmouse="#define USE_SYSMOUSE"
    ;;
  *)
    def_use_sysmouse="#undef USE_SYSMOUSE"
    ;;
esac

extlib=''

case $sysname in
  *bsd|*BSD)
    searchlibs=""
    ;;
  *)
    searchlibs="bsd BSD 44bsd socket nsl"
    ;;
esac

for lib in $searchlibs
do
  for tlibdir in /lib /usr/lib /usr/local/lib /usr/ucblib /usr/ccslib /usr/ccs/lib $prefix/lib
  do
    if [ -f $tlibdir/lib$lib.a -o -f $tlibdir/lib$lib.$so_ext ] ; then 
      bsdlib="$bsdlib -l$lib"
      break
    fi
  done
done
extlib=''

searchlibs="socket nsl"
for lib in $searchlibs
do
  for tlibdir in /lib /usr/lib /usr/local/lib /usr/ucblib /usr/ccslib /usr/ccs/lib $prefix/lib
  do
    if [ -f $tlibdir/lib$lib.a -o -f $tlibdir/lib$lib.$so_ext ] ; then 
      extlib="$extlib -l$lib"
      break
    fi
  done
done
if [ $sysname = "HP-UX" ]; then
  extlib="$extlib -ldld"
fi
if [ -n "$extlib" ]; then
  echo "additional library found: $extlib"
fi

## Search zlib
zlib=
for tlibdir in /lib /usr/lib /usr/local/lib /usr/ucblib /usr/ccslib /usr/ccs/lib /usr/X11R6/lib $prefix/lib ${HOME}/lib
do
  if [ -f $tlibdir/libz.a -o -f $tlibdir/libz.$so_ext ] ; then
    echo "$tlibdir/libz found"
    zlib="-L$tlibdir -lz"
    break
  fi
done
z_cflags=
for inc in /usr/include /usr/local/include $prefix/include ${HOME}/include
do
  if [ -f $inc/zlib.h ]; then
    echo "$inc/zlib.h found"
    z_cflags="-I$inc"
    break
  fi
done
if [ -n "$zlib" -a -n "$z_cflags" ]; then
  inflate='$(INFLATE)'
else
  echo "Warning: It seems you don't have zlib. Inflate cannot be installed."
  inflate=
fi

gclib=''
gcinclude=''
gctarget=''
for tlibdir in ${gc_libdir} /lib /usr/lib /usr/local/lib /usr/ucblib /usr/ccslib /usr/ccs/lib $prefix/lib ${HOME}/lib
do
  if [ -f $tlibdir/libgc.a -o -f $tlibdir/libgc.$so_ext ] ; then 
    echo "$tlibdir/libgc found"
    gclib="-L$tlibdir -lgc"
    break
  fi
done
for inc in ${gc_includedir} /usr/include /usr/include/gc /usr/local/include /usr/local/include/gc $prefix/include ${HOME}/include
do
  if [ -f $inc/gc.h ]; then
    echo "$inc/gc.h found"
    gcinclude=$inc
    break
  fi
done

case $sysname in
  linux|Linux|LINUX|aix|Aix|AIX)
    if [ ! -f "$gcinclude/private/gc_priv.h" ]; then
      case $cflags in
      *DEBIAN*)
        # on Debian, we can use libgc*.deb
        :;;
      *)
        # these OS requires gcmain.c, which include gc/gc_priv.h
        # therefore we use gc library comes with w3m
        echo "Your OS is $sysname; using gc library comes with w3m."
        gcinclude=""
        gclib=""
        ;;
      esac
   fi
  ;;
esac

if [ -n "$gclib" -a -n "$gcinclude" ]; then
  Echo GC library found on your system...
  cat > _zmachdep.c << EOF
#include <gc.h>
main()
{
  extern unsigned GC_version;
  printf("%d%02d%03d\n",(GC_version>>16)&0xff,(GC_version>>8)&0xff,GC_version&0xff);
}
EOF
  if $cc $cflags -I$gcinclude -o _zmachdep _zmachdep.c $gclib > /dev/null 2>&1
  then
    echo "and it seems to work."
    gcversion=`./_zmachdep`
    echo "GC_version is $gcversion."    
    if [ $gcversion -lt $mygcversion ]; then
      echo "GC library on your system seems to be old."
      echo "Do you want to use GC library comes with w3m?"
      yesno ans y y
      if [ "$ans" = 'n' -o "$ans" = 'N' ]; then
        cflags="$cflags -I$gcinclude"
      else
        cflags="$cflags -I./gc/include"
        gclib="gc/gc.a"
        gctarget=$gclib
      fi
    else
      cflags="$cflags -I$gcinclude"
    fi
  else
    echo "but it doesn't seem to work."
    cflags="$cflags -I./gc/include"
    gclib="gc/gc.a"
    gctarget=$gclib
  fi
fi

if [ -z "$gclib" -o -z "$gcinclude" ]; then
  cflags="$cflags -I./gc/include"
  gclib="gc/gc.a"
  gctarget="$gclib"
fi

# Apply patch.
gc_cflags=''
if [ "$gclib" = "gc/gc.a" -a ! -f patch_done ]; then
  patchfile=""
  case "$platform:$sysname" in
  R3000:*System_V*|R4000:UNIX_SYSV|R*000:UNIX_SV)
    # EWS-4800
    patchfile=Patches/ews4800
    gc_cflags=-Dmips
    ;;
  esac

  if [ -n "$patchfile" -a -f "$patchfile" ]; then
    patch -lp0 < $patchfile
    echo "dpatch='$patch'" >> config.param
    touch patch_done
  fi
fi


echo "Input additional LD flags other than listed above, if any:"
if [ -z "$dldflags" ]; then
  dldflags=${LDFLAGS-""}
fi
if [ -n "$dldflags" ]; then
  Echo "(default: $dldflags) : "
else
  Echo ": "
fi
readanswer ldflags "$dldflags" ok
if [ -z "$ldflags" ]; then
  ldflags=$dldflags
fi
echo "dldflags='$ldflags'" >> config.param

echo "Checking machine dependency."

###### mime.types
MIME_TYPES=""
if [ -n "$mimetypes" ]; then
   MIME_TYPES=$mimetypes
else
 for d in /etc /usr/lib /usr/local/lib /usr/local/etc $prefix/lib /usr/local/etc/apache /usr/local/lib/mosaic /usr/local/mosaic /usr/local/netscape /usr/local/lib/netscape
 do
  if [ -f $d/mime.types ]; then
    MIME_TYPES="$d/mime.types"
    break
  fi
 done
fi
if [ -z "$MIME_TYPES" ]; then
  echo "Global mime.types not found; Hope /usr/local/lib/mime.types works."
  MIME_TYPES=/usr/local/lib/mime.types
fi

####### ranlib
if ./which ranlib > /dev/null
then
  echo "You have ranlib."
  ranlib_cmd=ranlib
else
  if [ $sysname = "OS/2" ]; then
    ranlib_cmd=rem
  else
  echo "You don't have ranlib."
  ranlib_cmd=:
  fi
fi

####### mkdir -p
if mkdir -p hogege 
then
  echo "You have mkdir -p."
  MKDIR="mkdir -p"
else
  MKDIR="mkdir"
fi
rm -rf hogege 2>&1 >/dev/null

####### perl
perl=`./which perl`
if [ `expr "$perl" : 'not found'` != 0 ]; then
  echo "You don't have perl."
  perl=/usr/local/bin/perl
  have_perl=n
else
  echo "You have perl."
  have_perl=y
fi

def_param use_help_cgi $have_perl

####### strcasecmp
cat > _zmachdep.c << EOF
#include <string.h>
main()
{
  int i;
  i = strcasecmp("abc","def");
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have strcasecmp()."
  def_have_strcasecmp="#define HAVE_STRCASECMP"
else
  echo "You don't have strcasecmp()."
  def_have_strcasecmp="#undef HAVE_STRCASECMP"
fi

####### strcasestr
cat > _zmachdep.c << EOF
#include <string.h>
main()
{
  int i;
  i = strcasestr("abc","def");
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have strcasestr()."
  def_have_strcasestr="#define HAVE_STRCASESTR"
else
  echo "You don't have strcasestr()."
  def_have_strcasestr="#undef HAVE_STRCASESTR"
fi

####### strchr
cat > _zmachdep.c << EOF
#include <string.h>
main()
{
  char *p, *q = "abc";
  p = strchr(q,'c');
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have strchr()."
  def_have_strchr="#define HAVE_STRCHR"
else
  echo "You don't have strchr()."
  def_have_strchr="#undef HAVE_STRCHR"
fi

####### strerror
cat > _zmachdep.c << EOF
main()
{
  int i;
  i = strerror(0);
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have strerror()."
  def_have_strerror="#define HAVE_STRERROR"
else
  echo "You don't have strerror()."
  def_have_strerror="#undef HAVE_STRERROR"
fi


####### sys_errlist
cat > _zmachdep.c << EOF
main()
{
  extern char sys_errlist[];
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have sys_errlist[]."
  def_have_syserrlist="#define HAVE_SYS_ERRLIST"
else
  echo "You don't have sys_errlist[]."
  def_have_syserrlist="#undef HAVE_SYS_ERRLIST"
fi

####### bcopy
cat > _zmachdep.c << EOF
main()
{
  char x[1],y[1];
  bzero(x,1);
  bcopy(x,y,1);
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have bcopy()."
  def_have_bcopy="#define HAVE_BCOPY"
else
  echo "You don't have bcopy()."
  def_have_bcopy="#undef HAVE_BCOPY"
fi

####### waitpid
cat > _zmachdep.c << EOF
#include <sys/types.h>
#include <sys/wait.h>

main()
{
    pid_t pid;
    int status;
    if ((pid = fork()) == 0) {
       sleep(10);
       exit(1);
    }
    while(waitpid(pid,&status,WNOHANG));
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have waitpid()."
  def_have_waitpid="#define HAVE_WAITPID"
else
  echo "You don't have waitpid()."
  def_have_waitpid="#undef HAVE_WAITPID"
fi

####### wait3
cat > _zmachdep.c << EOF
#include <sys/types.h>
#include <time.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/wait.h>
#ifndef NULL
#define NULL 0
#endif

main()
{
    int pid;
    int status;
    if ((pid = fork()) == 0) {
       sleep(10);
       exit(1);
    }
    while(wait3(&status,WNOHANG,NULL) > 0);
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have wait3()."
  def_have_wait3="#define HAVE_WAIT3"
else
  echo "You don't have wait3()."
  def_have_wait3="#undef HAVE_WAIT3"
fi

####### strftime
cat > _zmachdep.c << EOF
#include <time.h>

main()
{
    time_t ct;
    struct tm *tm;
    char t[80];
    time(&ct);
    strftime(t, 80, "%a, %d %b %Y %H:%M:%S GMT",gmtime(&ct));
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have strftime()."
  def_have_strftime="#define HAVE_STRFTIME"
else
  echo "You don't have strftime()."
  def_have_strftime="#undef HAVE_STRFTIME"
fi


####### getcwd
cat > _zmachdep.c << EOF
#include <sys/param.h>
#include <unistd.h>
main()
{
#ifdef MAXPATHLEN
  char path[MAXPATHLEN];
  getcwd(path,MAXPATHLEN);
#else
  gwtcwd(NULL, 0);
#endif
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have getcwd()."
  def_have_getcwd="#define HAVE_GETCWD"
else
  echo "You don't have getcwd()."
  def_have_getcwd="#undef HAVE_GETCWD"
fi

####### getwd
cat > _zmachdep.c << EOF
main()
{
  char path[64];
  getwd(path);
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have getwd()."
  def_have_getwd="#define HAVE_GETWD"
else
  echo "You don't have getwd()."
  def_have_getwd="#undef HAVE_GETWD"
fi

####### readlink
cat > _zmachdep.c << EOF
main()
{
  char path[64],lpath[64];
  readlink(path,lpath,64);
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have readlink()."
  def_have_readlink="#define HAVE_READLINK"
else
  echo "You don't have readlink()."
  def_have_readlink="#undef HAVE_READLINK"
fi

####### setenv
cat > _zmachdep.c << EOF
#include <stdlib.h>
main()
{
  setenv("HOGE","hoge",1);
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have setenv()."
  def_have_setenv="#define HAVE_SETENV"
else
  echo "You don't have setenv()."
  def_have_setenv="#undef HAVE_SETENV"
fi

####### putenv
cat > _zmachdep.c << EOF
#include <stdlib.h>
main()
{
  putenv("HOGE=hoge");
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have putenv()."
  def_have_putenv="#define HAVE_PUTENV"
else
  echo "You don't have putenv()."
  def_have_putenv="#undef HAVE_PUTENV"
fi

####### sigsetjmp
cat > _zmachdep.c << EOF
#include <setjmp.h>
main()
{
  jmp_buf env;
  if (sigsetjmp(env,1) != 0) {
    exit(0);
  }
  siglongjmp(env,1);
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have sigsetjmp()."
  def_setjmp="#define SETJMP(env) sigsetjmp(env,1)"
  def_longjmp="#define LONGJMP(env,val) siglongjmp(env,val)"
  def_jmpbuf="#define JMP_BUF sigjmp_buf"
else
  echo "You don't have sigsetjmp()."
  def_setjmp="#define SETJMP(env) setjmp(env)"
  def_longjmp="#define LONGJMP(env,val) longjmp(env,val)"
  def_jmpbuf="#define JMP_BUF jmp_buf"
fi

####### srand48
cat > _zmachdep.c << EOF
#include <stdlib.h>
main()
{
  srand48(0);
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have srand48()."
  def_have_srand48="#define HAVE_SRAND48"
else
  echo "You don't have srand48()."
  def_have_srand48="#undef HAVE_SRAND48"
fi

####### srandom
cat > _zmachdep.c << EOF
#include <stdlib.h>
main()
{
  srandom(0);
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have srandom()."
  def_have_srandom="#define HAVE_SRANDOM"
else
  echo "You don't have srandom()."
  def_have_srandom="#undef HAVE_SRANDOM"
fi

####### getpassphrase
cat > _zmachdep.c << EOF
#include <unistd.h>
main()
{
  getpassphrase("");
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have getpassphrase()."
  def_have_getpassphrase="#define HAVE_GETPASSPHRASE"
else
  echo "You don't have getpassphrase()."
  def_have_getpassphrase="#undef HAVE_GETPASSPHRASE"
fi

####### chdir
cat > _zmachdep.c <<EOF
#include <stdio.h>
#include <unistd.h>
main()
{
  int (*c)() = chdir;
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have chdir()."
  def_have_chdir="#define HAVE_CHDIR"
else
  echo "You don't have chdir()."
  def_have_chdir="#undef HAVE_CHDIR"
fi

####### fclose
cat > _zmachdep.c << EOF
#include <stdio.h>
#include <stdlib.h>
main()
{
  void (*c)() = fclose;
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "fclose() is declared."
  dcl_fclose=''
else
  echo "fclose() is not declared."
  dcl_fclose='void fclose(FILE*);'
fi

####### pclose
cat > _zmachdep.c << EOF
#include <stdio.h>
#include <stdlib.h>
main()
{
  void (*c)() = pclose;
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "pclose() is declared."
  dcl_pclose=''
else
  echo "pclose() is not declared."
  dcl_pclose='void pclose(FILE*);'
fi

####### termios/termio/sgtty
def_term_if='#define HAVE_SGTTY_H'
if [ $sysname = "HP-UX" ]; then
	echo "Your OS is HP-UX; using termio"
	def_term_if="#define HAVE_TERMIO_H"
elif [ $sysname = "CYGWIN" ]; then
	echo "Your OS is CYGWIN; using termios"
	def_term_if="#define HAVE_TERMIOS_H"
elif [ $sysname = "OS/2" ]; then
	echo "Your OS is OS/2; using termios"
	def_term_if='#define HAVE_TERMIOS_H'
elif [ -r /usr/include/termios.h ]; then
	echo "You have termios."
	def_term_if='#define HAVE_TERMIOS_H'
elif [ -r /usr/include/termio.h ]; then
	echo "You have termio."
	def_term_if='#define HAVE_TERMIO_H'
elif [ -r /usr/include/sgtty.h ]; then
	echo "You have sgtty."
	def_term_if='#define HAVE_SGTTY_H'
else
	echo "Do you have tty interface? I can't find one but I hope sgtty works..."
fi

####### dirent/direct
def_dir_if=''
if [ $sysname = "CYGWIN" ]; then
	echo "Your OS is CYGWIN; using dirent.h"
	def_dir_if='#define HAVE_DIRENT_H'
elif [ $sysname = "OS/2" ]; then
	echo "Your OS is OS/2; using dirent.h"
	def_dir_if='#define HAVE_DIRENT_H'
elif [ -r /usr/include/dirent.h ]; then
	echo "You have dirent.h."
	def_dir_if='#define HAVE_DIRENT_H'
elif [ -r /usr/include/sys/dir.h ]; then
	echo "You have sys/dir.h."
	def_dir_if=''
else
	echo "Do you have directory interface? I can't find one but I hope sys/dir.h works..."
fi

# check signal handler

do_sigtest int int
if [ $stat = 0 -a -z "$warning" ]
then
  echo 'signal handler is int handler(int).'
  def_sighandler='typedef int MySignalHandler;'
  def_sig_arg='#define SIGNAL_ARG int _dummy'
  def_sig_arglist='#define SIGNAL_ARGLIST 0'
  def_sig_return='#define SIGNAL_RETURN return 0'
else
  do_sigtest int void
  if [ $stat = 0 -a -z "$warning" ]
  then
    echo 'signal handler is int handler(void).'
    def_sighandler='typedef int MySignalHandler;'
    def_sig_arg='#define SIGNAL_ARG void'
    def_sig_arglist='#define SIGNAL_ARGLIST'
    def_sig_return='#define SIGNAL_RETURN return 0'
  else
    do_sigtest void int
    if [ $stat = 0 -a -z "$warning" ]
    then
      echo 'signal handler is void handler(int).'
      def_sighandler='typedef void MySignalHandler;'
      def_sig_arg='#define SIGNAL_ARG int _dummy'
      def_sig_arglist='#define SIGNAL_ARGLIST 0'
      def_sig_return='#define SIGNAL_RETURN return'
    else
      do_sigtest void void
      if [ $stat = 0 -a -z "$warning" ]
      then
        echo 'signal handler is void handler(void).'
      else
        echo 'I could not find the type of signal handler. I hope void handler(void) works.'
      fi
      def_sighandler='typedef void MySignalHandler;'
      def_sig_arg='#define SIGNAL_ARG void'
      def_sig_arglist='#define SIGNAL_ARGLIST'
      def_sig_return='#define SIGNAL_RETURN return'
    fi
  fi
fi

# check alarm()
if [ "$use_alarm" = y ]; then
  cat > _zmachdep.c <<EOF
#include <unistd.h>
#include <signal.h>
main()
{
    int sa = SIGALRM;
    void (*a)() = alarm;
}
EOF
  if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
  then
    echo "You have alarm()."
  else
    echo "You don't have alarm(), disable USE_ALARM"
    use_alarm=n
    def_use_alarm="#undef USE_ALARM"
  fi
fi

# check for float.h
cat > _zmachdep.c << EOF
#include <float.h>
main()
{
  ;
}
EOF
if $cc $cflags -c _zmachdep.c > /dev/null 2>&1
then
  echo "You have float.h."
  def_have_float_h='#define HAVE_FLOAT_H'
else
  def_have_float_h='#undef HAVE_FLOAT_H'
fi

####### check for sys/select.h
cat > _zmachdep.c <<EOF
#include <sys/select.h>
main()
{ 
  ;
}
EOF
if $cc $cflags -c _zmachdep.c > /dev/null 2>&1
then
  echo "You have sys/select.h."
  def_have_sys_select_h='#define HAVE_SYS_SELECT_H'
else
  def_have_sys_select_h='#undef HAVE_SYS_SELECT_H'
fi

####### setpgrp(pid, pgrp) or setpgrp() ?
cat > _zmachdep.c << EOF
#include <unistd.h>
int main(){
  int pid;
  if((pid = fork()) == 0 )
    setpgrp();
}
EOF
if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
then
  echo "You have setpgrp()."
  def_have_setpgrp='#define HAVE_SETPGRP'
else
  cat > _zmachdep.c << EOF
#include <unistd.h>
int main(){
  int pid;
  if((pid = fork()) == 0 )
    setpgrp( 0, 0 );
}
EOF
  if $cc $cflags -o _zmachdep _zmachdep.c $extlib > /dev/null 2>&1
  then
    echo "You have setpgrp( pid, pgrp )."
    def_have_setpgrp='#define HAVE_SETPGRP'
    def_setpgrp='#define setpgrp() setpgrp( 0, 0 )'
  else
    def_have_setpgrp=''
  fi
fi

###### atexit/on_exit
# cat > _zmachdep.c <<EOF
# main()
# {
#   atexit( sleep(1) );
# }
# EOF
# if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
# then
#   echo "You have atexit()."
#   atexit_flg="#define HAVE_ATEXIT"
# else
#   cat > _zmachdep.c <<EOF
# #include <stdio.h>
# main()
# {
#   on_exit( sleep(1), NULL );
# }
# EOF
#   if $cc $cflags -o _zmachdep _zmachdep.c > /dev/null 2>&1
#   then
#     echo "You have on_exit()."
#     atexit_flg="#define atexit(x) on_exit(x, NULL)"
#   else
#     echo "You don't have atexit()/on_exit()"
#   fi
# fi

###### IPv6 support check
cat > _zmachdep.c <<EOF
#include <sys/types.h>
#include <sys/socket.h>
main()
{
 if (socket(AF_INET6, SOCK_STREAM, 0) < 0)
   exit(1);
 else
   exit(0);
}
EOF
def_ipv6="#undef INET6"
v6_ss_family=""
v6lib=''

if $cc $cflags -o _zmachdep _zmachdep.c $extlib > /dev/null 2>&1
then
  if ./_zmachdep; then
    def_ipv6="#define INET6"
  fi
  case $sysname in
  *BSD|*bsd)
    cat > _zmachdep.c <<EOF
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>

struct addrinfo *hints, **res;

int main() {
    getaddrinfo("null", "null", hints, res);
}
EOF
    if $cc $cflags -o _zmachdep _zmachdep.c $extlib > /dev/null 2>&1
    then
      echo "You have getaddrinfo() in libc."
    else
      for tlibdir in /usr/local/v6/lib /usr/local/lib /usr/lib $prefix/lib
      do
	if [ -e $tlibdir/libinet6.a ]; then
	  if [ "$tlibdir" != "/usr/lib" ]; then
	    v6lib="-L$tlibdir"
	  fi
	  v6lib="$v6lib -linet6"
	  if $cc $cflags -o _zmachdep _zmachdep.c $extlib $v6lib > /dev/null 2>&1
	  then
	    echo "You have getaddrinfo() in libinet6."
	  fi
	  break
	fi
      done
      if [ "X$v6lib" = "X" ]; then
	echo "You don't have getaddrinfo()."
	def_ipv6="#undef INET6"
      fi
    fi
    ;;
  CYGWIN*)
    def_ipv6="#undef INET6"
    ;;
  esac
fi

####### ss_family or __ss_family ?
if [ "$def_ipv6" = "#define INET6" ]; then
  cat > _zmachdep.c <<EOF
#include <sys/types.h>
#include <sys/socket.h>
int main() {
    struct sockaddr_storage ss;
    int i = ss.ss_family;
}
EOF
  if $cc $cflags -o _zmachdep _zmachdep.c $extlib > /dev/null 2>&1
  then
    echo "You have ss_family."
  else
  cat > _zmachdep.c <<EOF
#include <sys/types.h>
#include <sys/socket.h>
int main() {
    struct sockaddr_storage ss;
    int i = ss.__ss_family;
}
EOF
    if $cc $cflags -o _zmachdep _zmachdep.c $extlib > /dev/null 2>&1
    then
      echo "You have __ss_family."
      def_ipv6_ss_family="#define ss_family __ss_family"
    else
      echo "You don't have ss_family."
      def_ipv6="#undef INET6"
    fi
  fi
fi

if [ "$def_ipv6" = "#undef INET6" ]; then
  echo "You don't have IPv6 support."
else
  echo "You have IPv6 support."
fi

rm -f _zmachdep$extension _zmachdep.c _zmachdep.o
echo "------------ Configuration done ------------"

# set model name
case $dmodel in
  1) modelname=baby;;
  2) modelname=little;;
  3) modelname=mouse;;
  4) modelname=cookie;;
  5) modelname=monster;;
  6) modelname=custom;;
esac

cvsver=`awk '\$1 ~ /[$]Id:/ { print \$3}' ChangeLog`
sed -e 's/^#define CURRENT_VERSION "\(.*\)+cvs.*"/#define CURRENT_VERSION "\1+cvs-'$cvsver'"/' version.c.in > version.c

cat > extrvers.c << EOF
#include <stdio.h>
#include <string.h>
#include "version.c"
main()
{
  char *p = strchr(w3m_version,'/');
  if (p == NULL)
    printf("unknown\n");
  else
    printf("%s\n",p+1);
}
EOF
$cc $cflags -o extrvers extrvers.c  > /dev/null 2>&1
w3mversion=`./extrvers`
echo "Current w3m version is $w3mversion."
rm -f extrvers.c extrvers$extension

echo "Extracting config.h"
cat > config.h << END_OF_CONFIG_H
/*
 * Configuration for w3m
 */

#ifndef _CONFIGURED_
#define _CONFIGURED_

/* User Configuration */

/* 
   If you define DICT, you can use dictionary look-up function
   in w3m. See README.dict for detail.
*/
$def_use_dict

/*
   If you want to load and save URL history.
 */
$def_use_history

/*
   USE_BG_COLOR enables w3m to set background color.
 */
$def_use_bg_color

/*
 * Do word fill
 */
$def_format_nice

/*
 * Enable id attribute
 */
$def_id_ext

/*
 * Save Current-buffer Information
 */
$def_use_bufinfo

/*
 * Support EGD (Entropy Gathering Daemon)
 */
$def_use_egd

/*
 * Remove line trailing spaces in html buffer.
 */
$def_enable_remove_trailingspaces

/*
 * thin chars for menu frame
 */
$def_menu_thin_frame

/*
 */
$def_table_expand
$def_table_no_compact
$def_nowrap
$def_matrix

/**********************************************************/
#ifdef makefile_parameter

BIN_DIR = $bindir
HELP_DIR = $helpdir
LIB_DIR = $libdir
ETC_DIR = $sysconfdir
HELP_FILE = $helpfile
SYS_LIBRARIES = $gpmlib $extlib $termlib $ssllib $v6lib
LOCAL_LIBRARIES = $bsdlib $ldflags
CC = $cc
MYCFLAGS = $cflags $bsdinclude $sslinclude
GCCFLAGS = $cflags -I./\$(srcdir)/include -DATOMIC_UNCOLLECTABLE -DNO_SIGNALS -DNO_EXECUTE_PERMISSION -DSILENT -DALL_INTERIOR_POINTERS
KEYBIND_SRC = $keymap_file.c
KEYBIND_OBJ = $keymap_file.o
EXT=$extension
MATHLIB=$mathlib
Z_CFLAGS=$z_cflags
ZLIB=$zlib
EXT_TARGETS=\$(BOOKMARKER) \$(HELPER) $inflate
GC_CFLAGS=$gc_cflags
GCLIB=$gclib
GCTARGET=$gctarget
RANLIB=$ranlib_cmd
MKDIR=$MKDIR
PERL=$perl
VERSION=$w3mversion
MODEL=$sysname.$platform-$modelname-$lang
#else
$special_sys

#define DISPLAY_CODE '$display_code'
#define SYSTEM_CODE '$system_code'

#define JA 0
#define EN 1
$def_lang
$def_kanji_symbols
$def_use_color
$def_use_ansi_color
$def_emacs_like_lineedit
$def_vi_prec_num
$def_use_mark
$def_label_topline
$def_nextpage_topline
$def_use_mouse
$def_use_gpm
$def_use_sysmouse
$def_use_menu
$def_use_cookie
$def_use_ssl
$def_use_ssl_verify
$def_ftppass_hostnamegen
$def_use_nntp
$def_use_gopher
$def_use_alarm
$def_use_help_cgi

#define DEF_EDITOR "$editor"
#define DEF_MAILER "$mailer"
#define DEF_EXT_BROWSER "$brz"

#define LIB_DIR      "$libdir"
#define HELP_DIR     "$helpdir"
#define ETC_DIR	     "$sysconfdir"
#define HELP_FILE    "w3mhelp.html"
#define HELP_CGI     "w3mhelp"
#define W3MCONFIG    "w3mconfig"

#define RC_DIR       "~/.w3m/"
#define BOOKMARK     "bookmark.html"
#define CONFIG_FILE  "config"
#define KEYMAP_FILE  "keymap"
#define MENU_FILE    "menu"
#define COOKIE_FILE  "cookie"
#define HISTORY_FILE "history"

#define USER_MAILCAP RC_DIR "/mailcap"
#define SYS_MAILCAP  "/etc/mailcap"
#define USER_MIMETYPES "~/.mime.types"
#define SYS_MIMETYPES "$MIME_TYPES"

#define DEF_SAVE_FILE "index.html"

$def_use_binstream
$def_term_if
$def_dir_if
$def_have_strcasecmp
$def_have_strcasestr
$def_have_strchr
$def_have_strerror
$def_have_syserrlist
$def_have_bcopy
$def_have_waitpid
$def_have_wait3
$def_have_strftime
$def_have_getcwd
$def_have_getwd
$def_have_readlink
$def_have_setenv
$def_have_putenv
$def_have_srand48
$def_have_srandom
$def_have_getpassphrase
$def_have_chdir
$dcl_fclose
$dcl_pclose
$def_setjmp
$def_longjmp
$def_jmpbuf
$def_have_float_h
$def_have_sys_select_h

$def_sighandler
$def_sig_arg
$def_sig_arglist
$def_sig_return
$def_have_setpgrp
$def_setpgrp
/*
   If you want to use IPv6, define this symbol.
 */
$def_ipv6
$def_ipv6_ss_family

/** dont edit below **/
#ifndef HAVE_SRAND48
#ifdef HAVE_SRANDOM
#define srand48 srandom
#define lrand48 random
#else /* HAVE_SRANDOM */
#define USE_INCLUDED_SRAND48
#endif /* HAVE_SRANDOM */
#endif

#if defined( __CYGWIN32__ ) && !defined( __CYGWIN__ )
#define __CYGWIN__
#endif

#if defined( __CYGWIN__ ) || defined( __EMX__ )
#define SUPPORT_DOS_DRIVE_PREFIX 1
#endif

#if defined( __CYGWIN__ )
#define SUPPORT_NETBIOS_SHARE 1
#endif

#if defined(__DJGPP__)
#define DEFAULT_TERM	"dosansi"
#else
#define DEFAULT_TERM	0	/* XXX */
#endif

#if defined(__EMX__) /* use \$extension? */
#define GUNZIP_CMDNAME  "gzip"
#define BUNZIP2_CMDNAME "bzip2"
#define INFLATE_CMDNAME  "inflate.exe"
#define W3MBOOKMARK_CMDNAME	"w3mbookmark.exe"
#define W3MHELPERPANEL_CMDNAME	"w3mhelperpanel.exe"
#define DEV_NULL_PATH	"nul"
#define DEV_TTY_PATH	"con"
#define CGI_EXTENSION	".cmd"
#define USE_PATH_ENVVAR
#else
#define GUNZIP_CMDNAME  "gunzip"
#define BUNZIP2_CMDNAME "bunzip2"
#define INFLATE_CMDNAME	"inflate"
#define W3MBOOKMARK_CMDNAME	"w3mbookmark"
#define W3MHELPERPANEL_CMDNAME	"w3mhelperpanel"
#define DEV_NULL_PATH	"/dev/null"
#define DEV_TTY_PATH	"/dev/tty"
#define CGI_EXTENSION	".cgi"
#endif

#define PATH_SEPARATOR	':'
#define GUNZIP_NAME  "gunzip"
#define BUNZIP2_NAME "bunzip2"
#define INFLATE_NAME "inflate"

#endif /* makefile_parameter */
#endif /* _CONFIGURED_ */

END_OF_CONFIG_H

echo ''
echo 'config.h is created. See config.h for further configuration.'
echo ''

echo 'Configuration done. Just type "make".'