path: root/aclocal.m4

dnl aclocal.m4 generated automatically by aclocal 1.4-p6

dnl Copyright (C) 1994, 1995-8, 1999, 2001 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
dnl PARTICULAR PURPOSE.

dnl w3m autoconf macros
#
# ----------------------------------------------------------------
# AC_W3M_VERSION
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_VERSION],
[AC_SUBST(CURRENT_VERSION)
 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
 CURRENT_VERSION=`sed -n 's/.*define CURRENT_VERSION *"w3m\/\(.*\)".*$/\1/p' version.c`])
#
# ----------------------------------------------------------------
# AC_W3M_COLOR
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_COLOR],
[AC_SUBST(USE_COLOR)
AC_MSG_CHECKING(if color escape sequence for kterm/pxvt is enabled)
AC_ARG_ENABLE(color,
 [  --disable-color		disable color escape sequence for kterm/pxvt],,
 [enable_color="yes"])
test x"$enable_color" = xyes && AC_DEFINE(USE_COLOR)
AC_MSG_RESULT($enable_color)])
#
# ----------------------------------------------------------------
# AC_W3M_ANSI_COLOR
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_ANSI_COLOR],
[AC_SUBST(USE_ANSI_COLOR)
AC_MSG_CHECKING(if ansi color escape sequence support is enabled)
AC_ARG_ENABLE(ansi_color,
 [  --disable-ansi-color		disable ansi color escape sequence],,
 [enable_ansi_color="yes"])
 test x"$enable_ansi_color" = xyes && AC_DEFINE(USE_ANSI_COLOR)
 AC_MSG_RESULT($enable_ansi_color)])
#
# ----------------------------------------------------------------
# AC_W3M_BG_COLOR
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_BG_COLOR],
[AC_SUBST(USE_BG_COLOR)
AC_MSG_CHECKING(if background color support is enabled)
AC_ARG_ENABLE(bgcolor,
 [  --disable-bgcolor		disable to set background color],,
 [enable_bgcolor="yes"])
 test x"$enable_bgcolor" = xyes && AC_DEFINE(USE_BG_COLOR)
AC_MSG_RESULT($enable_bgcolor)])
#
# ----------------------------------------------------------------
# AC_W3M_MENU
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_MENU],
[AC_SUBST(USE_MENU)
AC_MSG_CHECKING(if popup menu is enabled)
AC_ARG_ENABLE(menu,
 [  --disable-menu		disable popup menu],,
 [enable_menu="yes"])
 test x"$enable_menu" = xyes && AC_DEFINE(USE_MENU)
 AC_MSG_RESULT($enable_menu)])
#
# ----------------------------------------------------------------
# AC_W3M_MOUSE
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_MOUSE],
[AC_SUBST(USE_MOUSE)
AC_MSG_CHECKING(if mouse operation enabled)
AC_ARG_ENABLE(mouse,
 [  --disable-mouse		disable mouse operation],,
 [enable_mouse="yes"])
test x"$enable_mouse" = xyes && AC_DEFINE(USE_MOUSE)
AC_MSG_RESULT($enable_mouse)])
#
# ----------------------------------------------------------------
# AC_W3M_COOKIE
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_COOKIE],
[AC_SUBST(USE_COOKIE)
AC_MSG_CHECKING(if cookie is enabled)
AC_ARG_ENABLE(cookie,
 [  --disable-cookie		disable cookie],,
 [enable_cookie="yes"])
test x"$enable_cookie" = xyes && AC_DEFINE(USE_COOKIE)
AC_MSG_RESULT($enable_cookie)])
#
# ----------------------------------------------------------------
# AC_W3M_DICT
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_DICT],
[AC_SUBST(USE_DICT)
AC_MSG_CHECKING(if dictionary lookup is enabled)
AC_ARG_ENABLE(dict,
 [  --disable-dict		disable dictionary lookup (see README.dict)],,
 [enable_dict="yes"])
 test x"$enable_dict" = xyes && AC_DEFINE(USE_DICT)
 AC_MSG_RESULT($enable_dict)])
#
# ----------------------------------------------------------------
# AC_W3M_HISTORY
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_HISTORY],
[AC_SUBST(USE_HISTORY)
AC_MSG_CHECKING(if URL history is enabled)
AC_ARG_ENABLE(history,
 [  --disable-history		disable URL history],,
 [enable_history="yes"])
 test x"$enable_history" = xyes && AC_DEFINE(USE_HISTORY)
 AC_MSG_RESULT($enable_history)])
#
# ----------------------------------------------------------------
# AC_W3M_NNTP
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_NNTP],
[AC_SUBST(USE_NNTP)
 AC_MSG_CHECKING(if nntp is enabled)
 AC_ARG_ENABLE(nntp,
  [  --disable-nntp		disable NNTP],,
  [enable_nntp="yes"])
 test x"$enable_nntp" = xyes && AC_DEFINE(USE_NNTP)
 AC_MSG_RESULT($enable_nntp)])
# 
# ----------------------------------------------------------------
# AC_W3M_GOPHER
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_GOPHER],
[AC_SUBST(USE_GOPHER)
 AC_MSG_CHECKING(if gopher is enabled)
 AC_ARG_ENABLE(gopher,
  [  --enable-gopher		enable GOPHER],,
  [enable_gopher="no"])
 test x"$enable_gopher" = xyes &&  AC_DEFINE(USE_GOPHER)
 AC_MSG_RESULT($enable_gopher)])
#
# ----------------------------------------------------------------
# AC_W3M_LANG
# ----------------------------------------------------------------
# Checks for Japanese 
AC_DEFUN([AC_W3M_LANG],
[AC_SUBST(W3M_LANG)
AC_SUBST(DISPLAY_CODE)
AC_SUBST(SYSTEM_CODE)
AC_MSG_CHECKING(if japanese support is enabled)
AC_ARG_ENABLE(japanese,
 [  --enable-japanese=CODE	support Japanese character sets, CODE=(S|E|j|N|n|m)],,
 [enable_japanese="no"])
AC_MSG_RESULT($enable_japanese)
if test x"$enable_japanese" = xno; then
  w3m_lang="en"
  AC_DEFINE(DISPLAY_CODE, 'x')
  AC_DEFINE(SYSTEM_CODE, 'x')
else
  w3m_lang="ja";
  case x"$enable_japanese" in
  xS) AC_DEFINE_UNQUOTED(DISPLAY_CODE, '$enable_japanese')
      AC_DEFINE(DISPLAY_CODE, 'S');;
  xE|xj|xN|xn|xm) 
      AC_DEFINE_UNQUOTED(DISPLAY_CODE, '$enable_japanese')
      AC_DEFINE(SYSTEM_CODE, 'E');;
  *) AC_DEFINE(DISPLAY_CODE, 'E')
     AC_DEFINE(SYSTEM_CODE, 'E');;
  esac;
fi
W3M_LANGDEF=`echo $w3m_lang | tr 'a-z' 'A-Z'`
W3M_LANG=$W3M_LANGDEF
AC_DEFINE_UNQUOTED(W3M_LANG,$W3M_LANG)])
#
# ----------------------------------------------------------------
# AC_W3M_KANJI_SYMBOLS
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_KANJI_SYMBOLS],
[AC_SUBST(KANJI_SYMBOLS)
if test x"$enable_japanese" != xno; then
 AC_MSG_CHECKING(if kanji symbols is used)
 AC_ARG_ENABLE(kanjisymbols,
  [   --enable-kanjisymbols	use kanji symbols (enable japanese only)],,
  [enable_kanjisymbols="yes"])
 test x"$enable_kanjisymbols" = xyes && AC_DEFINE(KANJI_SYMBOLS)
 AC_MSG_RESULT($enable_kanjisymbols)
fi])
#
# ----------------------------------------------------------------
# AC_W3M_KEYMAP
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_KEYMAP],
[AC_SUBST(KEYMAP_FILE)
 AC_MSG_CHECKING(default keymap)
 AC_ARG_ENABLE(keymap,
  [  --enable-keymap[=w3m|lynx]	default keybind style(w3m or lynx)],,
  [enable_keymap="w3m"])
 AC_MSG_RESULT($enable_keymap)
 case x"$enable_keymap" in
 xw3m)
  KEYMAP_FILE="keybind";;
 xlynx)
  KEYMAP_FILE="keybind_lynx";;
 *)
  AC_MSG_ERROR([keymap should be either w3m or lynx.]);;
 esac
 AC_SUBST(HELP_FILE)
 HELP_FILE=w3mhelp-${enable_keymap}_$w3m_lang.html
 AC_DEFINE_UNQUOTED(HELP_FILE, "$HELP_FILE")
 AC_SUBST(KEYBIND)
 AC_DEFINE_UNQUOTED(KEYBIND, $enable_keymap)])
#
# ----------------------------------------------------------------
# AC_W3M_DIGEST_AUTH
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_DIGEST_AUTH],
[AC_SUBST(USE_DIGEST_AUTH)
 AC_MSG_CHECKING(if digest auth is enabled)
 AC_ARG_ENABLE(digest_auth,
 [  --disable-digest-auth		disable digest auth],,
 [enable_digest_auth="yes"])
 test x"$enable_digest_auth" = xyes && AC_DEFINE(USE_DIGEST_AUTH)
 AC_MSG_RESULT($enable_digest_auth)])
#
# ----------------------------------------------------------------
# AC_W3M_MIGEMO
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_MIGEMO],
[AC_SUBST(USE_MIGEMO)
 AC_SUBST(DEF_MIGEMO_COMMAND)
 migemo_command="migemo -t egrep /usr/local/share/migemo/migemo-dict"
 AC_MSG_CHECKING(if migemo is supported with)
 AC_ARG_WITH(migemo,
  [  --with-migemo=MIGEMO_COMMAND	migemo command],
  [test x"$with_migemo" = xyes || migemo_command="$with_migemo"])
 if test "${with_migemo+set}" = set; then
   AC_DEFINE(USE_MIGEMO)
 fi
 AC_MSG_RESULT($migemo_command)
 AC_DEFINE_UNQUOTED(DEF_MIGEMO_COMMAND, "$migemo_command")])
#
# ----------------------------------------------------------------
# AC_W3M_EDITOR
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_EDITOR],
[AC_SUBST(DEF_EDITOR)
w3m_editor="/usr/bin/vi"
AC_MSG_CHECKING(which editor is used by default)
AC_ARG_WITH(editor,
 [  --with-editor=EDITOR		default editor (/usr/bin/vi)],
 [w3m_editor="$with_editor"])
AC_MSG_RESULT($w3m_editor)
AC_DEFINE_UNQUOTED(DEF_EDITOR, "$w3m_editor")])
#
# ----------------------------------------------------------------
# AC_W3M_MAILER
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_MAILER],
[AC_SUBST(DEF_MAILER)
w3m_mailer="/usr/bin/mail"
AC_MSG_CHECKING(which mailer is used by default)
AC_ARG_WITH(mailer,
 [  --with-mailer=MAILER		default mailer (/usr/bin/mail)],
 [w3m_mailer="$with_mailer"])
AC_MSG_RESULT($w3m_mailer)
AC_DEFINE_UNQUOTED(DEF_MAILER, "$w3m_mailer")])
#
# ----------------------------------------------------------------
# AC_W3M_EXT_BROWSER
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_EXT_BROWSER],
[AC_SUBST(DEF_EXT_BROWSER)
w3m_browser="/usr/bin/mozilla"
AC_MSG_CHECKING(which external browser is used by default)
AC_ARG_WITH(browser,
 [  --with-browser=BROWSER	default browser (/usr/bin/mozilla)],
 [w3m_browser="$with_browser"])
AC_MSG_RESULT($w3m_browser)
AC_DEFINE_UNQUOTED(DEF_EXT_BROWSER, "$w3m_browser")])
#
# ----------------------------------------------------------------
# AC_W3M_HELP_CGI
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_HELP_CGI],
[AC_SUBST(USE_HELP_CGI)
 AC_MSG_CHECKING(if help cgi is enabled)
 AC_ARG_ENABLE(help_cgi,
  [  --disable-help-cgi		disable help cgi],,
  [enable_help_cgi="yes"])
 test x"$enable_help_cgi" = xyes && AC_DEFINE(USE_HELP_CGI)
 AC_MSG_RESULT($enable_help_cgi)])
# 
# ----------------------------------------------------------------
# AC_W3M_EXTERNAL_URI_LOADER
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_EXTERNAL_URI_LOADER],
[AC_SUBST(USE_EXTERNAL_URI_LOADER)
 AC_MSG_CHECKING(if external URI loader is enabled)
 AC_ARG_ENABLE(external_uri_loader,
 [  --disable-external-uri-loader	disable external URI loader],,
 [enable_external_uri_loader="yes"])
 test x"$enable_external_uri_loader" = xyes && AC_DEFINE(USE_EXTERNAL_URI_LOADER)
 AC_MSG_RESULT($enable_external_uri_loader)])
# 
# ----------------------------------------------------------------
# AC_W3M_W3MMAILER
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_W3MMAILER],
[AC_SUBST(USE_W3MMAILER)
 AC_MSG_CHECKING(if w3mmail is used)
 AC_ARG_ENABLE(w3mmailer,
 [  --disable-w3mmailer		disable w3mmailer],,
 [enable_w3mmailer="$enable_external_uri_loader"])
 test x"$enable_external_uri_loader" = xno && enable_w3mmailer=no
 test x"$enable_w3mmailer" = xyes && AC_DEFINE(USE_W3MMAILER)
 AC_MSG_RESULT($enable_w3mmailer)])
#
# ----------------------------------------------------------------
# AC_W3M_EXTLIBS(libs)
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_EXTLIBS],
[lib=$1
 AC_MSG_CHECKING(for -l$lib)
 extlib="not found"
 for dir in /lib /usr/lib /usr/local/lib /usr/ucblib /usr/ccslib /usr/ccs/lib
 do
   if test -f $dir/lib$lib.a -o -f $dir/lib$lib.so ; then 
    LIBS="$LIBS -l$lib"
    extlib="found at $dir"
    break
   fi
 done
 AC_MSG_RESULT($extlib)])
#
# ----------------------------------------------------------------
# AC_W3M_TERMLIB
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_TERMLIB],
[AC_MSG_CHECKING(terminal library)
AC_ARG_WITH(termlib,
 [  --with-termlib[=LIBS]	terminal library
				LIBS is space separated list of:
				  terminfo mytinfo termcap ncurses curses],,
 [with_termlib="yes"])
 AC_MSG_RESULT($with_termlib)
 test x"$with_termlib" = xyes && with_termlib="terminfo mytinfo termlib termcap ncurses curses"
 for lib in $with_termlib; do
   AC_CHECK_LIB($lib, tgetent, [LIBS="$LIBS -l$lib"; break])
 done
])
#
# ----------------------------------------------------------------
# AC_W3M_GC
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_GC],
[AC_MSG_CHECKING(GC library exists)
AC_ARG_WITH(gc,
 [  --with-gc[=PREFIX]	  	libgc PREFIX],
 [test x"$with_gc" = xno && AC_MSG_ERROR([You can not build w3m without gc])],
 [with_gc="yes"])
 AC_MSG_RESULT($with_gc)
 test x"$with_gc" = xyes && with_gc="/usr /usr/local ${HOME}"
 unset ac_cv_header_gc_h
 AC_CHECK_HEADER(gc.h)
 if test x"$ac_cv_header_gc_h" = xno; then
   AC_MSG_CHECKING(GC header location)
   AC_MSG_RESULT($with_gc)
   gcincludedir=no
   for dir in $with_gc; do
     for inc in include include/gc; do
       cppflags="$CPPFLAGS"
       CPPFLAGS="$CPPFLAGS -I$dir/$inc"
       AC_MSG_CHECKING($dir/$inc)
       unset ac_cv_header_gc_h
       AC_CHECK_HEADER(gc.h, [gcincludedir="$dir/$inc"; CFLAGS="$CFLAGS -I$dir/$inc"; break])
       CPPFLAGS="$cppflags"
     done
     if test x"$gcincludedir" != xno; then
       break;
     fi
   done
   if test x"$gcincludedir" = xno; then
     AC_MSG_ERROR([gc.h not found])
   fi
 fi
 unset ac_cv_lib_gc_GC_version
 AC_CHECK_LIB(gc, GC_version, [LIBS="$LIBS -lgc"])
 if test x"$ac_cv_lib_gc_GC_version" = xno; then
    AC_MSG_CHECKING(GC library location)
    AC_MSG_RESULT($with_gc)
    gclibdir=no
    for dir in $with_gc; do
      ldflags="$LDFLAGS"
      LDFLAGS="$LDFLAGS -L$dir/lib"
      AC_MSG_CHECKING($dir)
      unset ac_cv_lib_gc_GC_version
      AC_CHECK_LIB(gc, GC_version, [gclibdir="$dir/lib"; LIBS="$LIBS -L$dir/lib -lgc"; break])
      LDFLAGS="$ldflags"
    done
    if test x"$gclibdir" = xno; then
      AC_MSG_ERROR([libgc not found])
    fi
 fi])
#
# ----------------------------------------------------------------
# AC_W3M_SSL
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_SSL],
[AC_SUBST(USE_SSL)
AC_SUBST(USE_SSL_VERIFY)
AC_MSG_CHECKING(if SSL is suported)
AC_ARG_WITH(ssl,
 [  --with-ssl[=PREFIX]		support https protocol],,
 [with_ssl="yes"])
AC_MSG_RESULT($with_ssl)
if test x"$with_ssl" != xno; then
  AC_DEFINE(USE_SSL)
  AC_MSG_CHECKING(for SSL library/header)
  test x"$with_ssl" = xyes && with_ssl="/usr/openssl /usr/ssl /usr /usr/local/openssl /usr/local/ssl /usr/local"
  AC_MSG_RESULT($with_ssl)
  for dir in $with_ssl
  do
     if test -f "$dir/include/openssl/ssl.h"; then
        CFLAGS="$CFLAGS -I$dir/include/openssl"
     elif test "$dir" != "/usr" -a -f "$dir/include/ssl.h"; then
        CFLAGS="$CFLAGS -I$dir/include"
     fi
     if test "$dir" != "/usr" -a -f "$dir/lib/libssl.a"; then
	LIBS="$LIBS -L$dir/lib"
     fi
  done
  AC_CHECK_LIB(ssl, SSL_new,
	[w3m_ssl="found"; LIBS="$LIBS -lssl -lcrypto"],
	[w3m_ssl="not found"],
	[-lcrypto])

  if test x"$w3m_ssl" = xfound; then
    AC_MSG_CHECKING(if SSL certificate verify is enabled)
    AC_ARG_ENABLE(sslverify,
      [   --disable-sslverify		vefify SSL certificate],,
      [enable_sslverify="yes"])
    test x"$enable_sslverify" = xyes && AC_DEFINE(USE_SSL_VERIFY)
    AC_MSG_RESULT($enable_sslverify)
  fi
fi])
#
# ----------------------------------------------------------------
# AC_W3M_ALARM
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_ALARM],
[AC_SUBST(USE_ALARM)
 AC_MSG_CHECKING(if alarm is enabled)
 AC_ARG_ENABLE(alarm,
 [  --disable-alarm		disable alarm],,
 [enable_alarm="yes"])
 AC_MSG_RESULT($enable_alarm)
 if test x"$enable_alarm" = xyes; then
   AC_TRY_COMPILE(
    [#include <unistd.h>
#include <signal.h>],
    [int sa = SIGALRM;
     void (*a) = alarm;],
   [AC_DEFINE(USE_ALARM)])
 fi])
#
# ----------------------------------------------------------------
# AC_W3M_CHECK_VER(name, version, major, minor, micro, 
#		action-if-ok, message-if-badver, action-if-nover)
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_CHECK_VER],
[version="$2"
 if test x"$version" != x; then
   AC_MSG_CHECKING($1 version)
   AC_MSG_RESULT($version)
   set -- `echo "$version" | sed 's/[[^0-9]]/ /g'`
   if test "$[1]" -ne "$3" -o "$[2]" -lt "$4" -o "$[3]" -lt "$5"; then
     AC_MSG_WARN([$1 is too old. Install $1 (version >= $3.$4.$5)])
     $7
   else
     $6
   fi
 else
   AC_MSG_WARN([$1 is not installed.  Install $1 (version >= $3.$4.$5)])
   $7
 fi])
#
# ----------------------------------------------------------------
# AC_W3M_IMAGE
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_IMAGE],
[AC_SUBST(USE_IMAGE)
 AC_SUBST(USE_W3MIMG_X11)
 AC_SUBST(USE_W3MIMG_FB)
 AC_SUBST(W3MIMGDISPLAY_SETUID)
 AC_SUBST(INSTALL_W3MIMGDISPLAY)
 INSTALL_W3MIMGDISPLAY='${INSTALL_PROGRAM}'
 AC_DEFINE(INSTALL_W3MIMGDISPLAY, $INSTALL_W3MIMGDISPLAY)
 AC_SUBST(USE_GDKPIXBUF)
 AC_SUBST(USE_IMLIB)
 AC_SUBST(USE_IMLIB2)
 AC_SUBST(IMGOBJS)
 AC_SUBST(IMGX11CFLAGS)
 AC_SUBST(IMGX11LDFLAGS)
 AC_SUBST(IMGFBCFLAGS)
 AC_SUBST(IMGFBLDFLAGS)
 AC_MSG_CHECKING(if image is enabled)
 AC_ARG_ENABLE(image,
 [  --enable-image[=x11,fb,fb+s]	enable inline image handler],,
 [enable_image="yes"])
 AC_MSG_RESULT($enable_image)
 if test x"$enable_image" != xno; then
  IMGOBJS=w3mimg/w3mimg.o
  if test x"$enable_image" = xyes; then
    enable_image=x11
    case "`uname -s`" in
    Linux|linux|LINUX) 
	if test -c /dev/fb0; then
	  enable_image=x11,fb
        fi;;
    esac
  fi   
  save_ifs="$IFS"; IFS=",";
  for img in $enable_image; do
    case $img in
      x11) x11=yes;;
      fb)  fb=yes;;
      fb+s) fb=yes
           AC_DEFINE(W3MIMGDISPLAY_SETUID)
           INSTALL_W3MIMGDISPLAY='${INSTALL} -o root -m 4755 -s'
           AC_DEFINE(INSTALL_W3MIMGDISPLAY, $INSTALL_W3MIMGDISPLAY);;
    esac
  done
  IFS="$save_ifs"
  enable_image=yes
  AC_DEFINE(USE_IMAGE)
  if test x"$IMLIB_CONFIG" = x; then
    IMLIB_CONFIG=imlib-config
  fi
  if test x"$IMLIB2_CONFIG" = x; then
    IMLIB2_CONFIG=imlib2-config
  fi
  if test x"$GDKPIXBUF_CONFIG" = x; then
    GDKPIXBUF_CONFIG=gdk-pixbuf-config
  fi
  AC_W3M_CHECK_VER([GdkPixbuf],
	[`$GDKPIXBUF_CONFIG --version 2>/dev/null`],
	0, 16, 0,
	[have_gdkpixbuf="yes"],
	[have_gdkpixbuf="no"
  AC_W3M_CHECK_VER([Imlib],
	[`$IMLIB_CONFIG --version 2>/dev/null`],
	1, 9, 8,
	[have_imlib="yes"],
	[have_imlib="no"])
  AC_W3M_CHECK_VER([Imlib2],
	[`$IMLIB2_CONFIG --version 2>/dev/null`],
	1, 0, 5,
	[have_imlib2="yes"],
	[have_imlib2="no"])])
  if test x"$x11" = xyes; then
   if test x"$have_gdkpixbuf" = xyes; then
     AC_DEFINE(USE_W3MIMG_X11)
     AC_DEFINE(USE_GDKPIXBUF)
     IMGOBJS="$IMGOBJS w3mimg/x11/x11_w3mimg.o"
     IMGX11CFLAGS="`${GDKPIXBUF_CONFIG} --cflags`"
     IMGX11LDFLAGS="`${GDKPIXBUF_CONFIG} --libs` -lgdk_pixbuf_xlib"
   elif test x"$have_imlib" = xyes; then
     AC_DEFINE(USE_W3MIMG_X11)
     AC_DEFINE(USE_IMLIB)
     IMGOBJS="$IMGOBJS w3mimg/x11/x11_w3mimg.o"
     IMGX11CFLAGS="`${IMLIB_CONFIG} --cflags`"
     IMGX11LDFLAGS="`${IMLIB_CONFIG} --libs`"
   elif test x"$have_imlib2" = xyes; then
     AC_DEFINE(USE_W3MIMG_X11)
     AC_DEFINE(USE_IMLIB2)
     IMGOBJS="$IMGOBJS w3mimg/x11/x11_w3mimg.o"
     IMGX11CFLAGS="`${IMLIB2_CONFIG} --cflags`"
     IMGX11LDFLAGS="`${IMLIB2_CONFIG} --libs`"
   else
     AC_MSG_WARN([unable to build w3mimgdisplay with X11 support])
   fi
  fi
  if test x"$fb" = xyes; then
   if test x"$have_gdkpixbuf" = xyes; then
     AC_DEFINE(USE_W3MIMG_FB)
     AC_DEFINE(USE_GDKPIXBUF)
     IMGOBJS="$IMGOBJS w3mimg/fb/fb_w3mimg.o w3mimg/fb/fb.o w3mimg/fb/fb_img.o"
     IMGFBCFLAGS="`${GDKPIXBUF_CONFIG} --cflags`"
     IMGFBLDFLAGS="`${GDKPIXBUF_CONFIG} --libs`"
   elif test x"$have_imlib2" = xyes; then
     AC_DEFINE(USE_W3MIMG_FB)
     AC_DEFINE(USE_IMLIB2)
     IMGOBJS="$IMGOBJS w3mimg/fb/fb_w3mimg.o w3mimg/fb/fb.o w3mimg/fb/fb_img.o"
     IMGFBCFLAGS="`${IMLIB2_CONFIG} --cflags`"
     IMGFBLDFLAGS="`${IMLIB2_CONFIG} --libs`"
   else
     AC_MSG_WARN([unable to build w3mimgdisplay with FB support])
   fi
  fi
  AC_DEFINE(IMGOBJS, "$IMGOBJS")
  AC_DEFINE(IMGX11CFLAGS, "$IMGX11CFLAGS")
  AC_DEFINE(IMGX11LDFLAGS, "$IMGX11LDFLAGS")
  AC_DEFINE(IMGFBCFLAGS, "$IMGFBCFLAGS")
  AC_DEFINE(IMGFBLDFLAGS, "$IMGLDFLAGS")
 fi])
# ----------------------------------------------------------------
# AC_W3M_XFACE
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_XFACE],
[AC_SUBST(USE_XFACE)
 AC_MSG_CHECKING(if xface is enabled)
 AC_ARG_ENABLE(xface,
  [   --enable-xface		enable xface support],,
  [enable_xface="$enable_image"])
 test x"$enable_xface" = xyes && AC_DEFINE(USE_XFACE)
 AC_MSG_RESULT($enable_xface)
 AC_CHECK_PROG(uncompface, uncompface, "yes", "no")
 test "$uncompface" = "no" && AC_MSG_WARN([uncompface is not installed.])
])
#
# ----------------------------------------------------------------
# AC_W3M_IPv6
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_IPv6],
[AC_MSG_CHECKING(if IPv6 support is enabled)
AC_ARG_ENABLE(ipv6,
 [  --disable-ipv6		disable IPv6],,
 [enable_ipv6="yes"])
AC_MSG_RESULT($enable_ipv6)

if test x"$enable_ipv6" = xyes; then
 AC_MSG_CHECKING(if IPv6 API available)
 AC_SUBST(INET6)
 AC_CHECK_FUNC(getaddrinfo, 
	[enable_ipv6="yes"; AC_DEFINE(INET6)],
	[enable_ipv6="no"])
 if test x"$enable_ipv6" = xno; then
    AC_MSG_CHECKING(for libinet6)
    for dir in /usr/local/v6/lib /usr/local/lib /usr/lib
    do
	if test -f $dir/libinet6.a; then
	  if test $dir != "/usr/lib"; then
		LIBS="$LIBS -L$dir"
	  fi
	  AC_CHECK_LIB(inet6, getaddrinfo,
		[enable_ipv6="yes"; AC_DEFINE(INET6)
	         use_libinet6="found"; LIBS="$LIBS -linet6"; break],
		[use_libinet6="not found"])
	fi
    done
    AC_MSG_RESULT($use_libinet6)
 fi
fi])
#
# ----------------------------------------------------------------
# AC_W3M_SYS_ERRLIST
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_SYS_ERRLIST],
[AC_SUBST(HAVE_SYS_ERRLIST)
AC_MSG_CHECKING(for sys_errlist)
AC_TRY_COMPILE(
changequote(<<,>>)dnl
<<extern char *sys_errlist[];>>,
<<printf(sys_errlist[0]);>>,
changequote([,])dnl
[have_sys_errlist="yes"; AC_DEFINE(HAVE_SYS_ERRLIST)],
[have_sys_errlist="no"])
AC_MSG_RESULT($have_sys_errlist)])
#
# ----------------------------------------------------------------
# AC_W3M_SIGSETJMP
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_SIGSETJMP],
[AC_SUBST(HAVE_SIGSETJMP)
AC_MSG_CHECKING(for sigsetjmp)
AC_TRY_COMPILE(
[#include <setjmp.h>],
[ jmp_buf env;
   if (sigsetjmp(env, 1) != 0) { exit(0); } siglongjmp(env, 1);],
[have_sigsetjmp="yes"; AC_DEFINE(HAVE_SIGSETJMP)],
[have_sigsetjmp="no"])
AC_MSG_RESULT($have_sigsetjmp)])
#
# ----------------------------------------------------------------
# AC_W3M_SIGNAL_RETURN
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_SIGNAL],
[AC_TYPE_SIGNAL
 AC_SUBST(RETSIGTYPE)
 AC_SUBST(SIGNAL_RETURN)
 if test x"$ac_cv_type_signal" = xvoid; then
  AC_DEFINE(SIGNAL_RETURN,return)
 else
  AC_DEFINE(SIGNAL_RETURN,return 0)
 fi])