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\/\(.*\)".*$/\1/p' version.c`])
# ----------------------------------------------------------------
# AC_W3M_MODEL
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_MODEL], 
[AC_SUBST(W3M_MODEL)
 AC_SUBST(W3M_TARGET)
 W3M_TARGET=$target
 AC_DEFINE_UNQUOTED(W3M_TARGET, $W3M_TARGET)
 W3M_MODEL=custom
AC_MSG_CHECKING(if --enable-model option specified)
AC_ARG_ENABLE(model,
 [  --enable-model=MODEL    specify build model (baby|little|mouse|cookie|monster)
                            baby=minumum set
                            little=color,menu
                            mouse=color,menu,mouse
                            cookie=color,menu,mouse,cookie
                            monster=color,menu,mouse,cookie,ssl],
 [W3M_MODEL=$enable_model
  case x$enable_model in
  xbaby) 
	: ${enable_color=no} ${enable_menu=no} ${enable_mouse=no} \
	  ${enable_cookie=no} ${with_ssl=no}
	;;
  xlittle)
	: ${enable_color=yes} ${enable_menu=yes} ${enable_mouse=no} \
	  ${enable_cookie=no} ${with_ssl=no}
	;;
  xmouse)
	: ${enable_color=yes} ${enable_menu=yes} ${enable_mouse=yes} \
	  ${enable_cookie=no} ${with_ssl=no}
	;;
  xcookie)
	: ${enable_color=yes} ${enable_menu=yes} ${enable_mouse=yes} \
	  ${enable_cookie=yes} ${with_ssl=no}
	;;
  xyes|xmonster) enable_model=monster
	: ${enable_color=yes} ${enable_menu=yes} ${enable_mouse=yes} \
	  ${enable_cookie=yes} ${with_ssl=yes}
	;;
  *) W3M_MODEL=custom;;
  esac])
AC_MSG_RESULT($enable_model)])
#
# ----------------------------------------------------------------
# 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,
 [  --enable-color          enable color escape sequence for kterm/pxvt],,
 [enable_color="no"])
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,
 [  --enable-ansi-color     enable ansi color escape sequence is enabled],,
 [enable_ansi_color="no"])
 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,
 [  --enable-bgcolor        enable to set background color],,
 [enable_bgcolor="no"])
 test x$enable_ansi_color = xyes && AC_DEFINE(USE_ANSI_COLOR)
AC_MSG_RESULT($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,
 [  --enable-menu           enable popup menu],,
 [enable_menu="no"])
 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 --enable-mouse option specified)
AC_ARG_ENABLE(mouse,
 [  --enable-mouse          enable mouse operation],,
 [enable_mouse="no"])
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,
 [  --enable-cookie         enable cookie],,
 [enable_cookie="no"])
test x$enable_cookie = xyes && AC_DEFINE(USE_COOKIE)
AC_MSG_RESULT($enable_cookie)])
#
# ----------------------------------------------------------------
# AC_W3M_SHOW_PARAMS
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_SHOW_PARAMS],
[AC_SUBST(SHOW_PARAMS)
AC_MSG_CHECKING(if showparams is enabled)
AC_ARG_ENABLE(showparams,
 [  --enable-showparams     enable listings of options],,
 [enable_showparams="no"])
 test x$enable_showparams = xyes && AC_DEFINE(SHOW_PARAMS)
 AC_MSG_RESULT($enable_showparams)])
#
# ----------------------------------------------------------------
# AC_W3M_DICT
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_DICT],
[AC_SUBST(USE_DICT)
AC_MSG_CHECKING(if dictionary lookup is enabled)
AC_ARG_ENABLE(dict,
 [  --enable-dict           enable dictionary lookup see README.dict],,
 [enable_dict="no"])
 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,
 [  --enable-history        enable URL history],,
 [enable_history="no"])
 test x$enable_history = xyes && AC_DEFINE(USE_HISTORY)
 AC_MSG_RESULT($enable_history)])
#
# ----------------------------------------------------------------
# AC_W3M_VIEW_UNSEENOBJECTS
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_VIEW_UNSEENOBJECTS],
[AC_SUBST(VIEW_UNSEENOBJECTS)
AC_MSG_CHECKING(if viewunseen is enabled)
AC_ARG_ENABLE(viewunseen,
 [  --enable-viewunseen     enable to make a link to unseen objects],,
 [enable_viewunseen="no"])
 test x$enable_viewunseen = xyes && AC_DEFINE(VIEW_UNSEENOBJECTS)
 AC_MSG_RESULT($enable_viewunseen)])
#
# ----------------------------------------------------------------
# AC_W3M_FORMAT_NICE
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_FORMAT_NICE],
[AC_SUBST(FORMAT_NICE)
 AC_MSG_CHECKING(if format-nice is enabled)
 AC_ARG_ENABLE(format_nice,
 [  --enable-format-nice     do word fill],,
 [enable_format_nice="no"])
 test x$enable_format_nice = xyes && AC_DEFINE(FORMAT_NICE)
 AC_MSG_RESULT($enable_format_nice)])
#
# ----------------------------------------------------------------
# AC_W3M_ID_EXT
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_ID_EXT],
[AC_SUBST(ID_EXT)
AC_MSG_CHECKING(if id attribute is enabled)
AC_ARG_ENABLE(idext,
 [  --disable-idext         disable id attribute],,
 [enable_idext="yes"])
 test "x$enable_idext" = xyes && AC_DEFINE(ID_EXT)
 AC_MSG_RESULT($enable_idext)])
#
# ----------------------------------------------------------------
# AC_W3M_FTPPASS_HOSTNAMEGEN
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_FTPPASS_HOSTNAMEGEN],
[AC_SUBST(FTPPASS_HOSTNAMEGEN)
 AC_MSG_CHECKING(if ftppwgen is enabled)
 AC_ARG_ENABLE(ftppwgen,
  [  --disable-ftppwgen      dont generate domain parts of passwords for anon ftp logins],,
 [enable_ftppwgen="yes"])
 test "x$enable_ftppwgen" = xyes && AC_DEFINE(FTPPASS_HOSTNAMEGEN)
 AC_MSG_RESULT($enable_ftppwgen)])
#
# ----------------------------------------------------------------
# AC_W3M_NNTP
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_NNTP],
[AC_SUBST(USE_NNTP)
 AC_MSG_CHECKING(if nntp is enabled)
 AC_ARG_ENABLE(nntp,
  [  --enable-nntp           enable NNTP],,
  [enable_nntp="no"])
 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 --enable-japanese option specified)
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 = xyes; then
 AC_MSG_CHECKING(if --enable-kanjisymbols option specified)
 AC_ARG_ENABLE(kanjisymbols,
  [   --enable-kanjisymbols   use kanji symbols],
  [test x$enable_kanjisymbols = xyes && AC_DEFINE(KANJI_SYMBOLS)],
  [enable_kanjisymbols="no"])
 AC_MSG_RESULT($enable_kanjisymbols)
fi])
#
# ----------------------------------------------------------------
# AC_W3M_KEYMAP
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_KEYMAP],
[AC_SUBST(KEYMAP_FILE)
 w3m_keybind="w3m"
 AC_MSG_CHECKING(lynx style keybind is used)
 AC_ARG_ENABLE(lynx,
  [  --enable-lynx           lynx style keybind],,
  [enable_lynx="no"])
 AC_MSG_RESULT($enable_lynx)
 if test x$enable_lynx = xyes; then
  w3m_keybind="lynx"
  KEYMAP_FILE="keybind_lynx"
 else
  w3m_keybind="w3m"
  KEYMAP_FILE="keybind"
 fi
 AC_SUBST(HELP_FILE)
 HELP_FILE=w3mhelp-$w3m_keybind_$w3m_lang.html
 AC_DEFINE_UNQUOTED(HELP_FILE, "$HELP_FILE")
 AC_SUBST(KEYBIND)
 AC_DEFINE_UNQUOTED(KEYBIND, $w3m_keybind)])
#
# ----------------------------------------------------------------
# AC_W3M_EMACS_LIKE_LINEEDIT
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_EMACS_LIKE_LINEEDIT],
[AC_SUBST(EMACS_LIKE_LINEEDIT)
 AC_MSG_CHECKING(emacs like lineedit is used)
 AC_ARG_ENABLE(emacs_like_lineedit,
 [   --enable-emacs-like-lineedit     emacs like lineedit],,
 [enable_emacs_like_lineedit="no"])
 test x$enable_emacs_like_lineedit = xyes && AC_DEFINE(EMACS_LIKE_LINEEDIT)
 AC_MSG_RESULT($enable_emacs_like_lineedit)])
# 
# ----------------------------------------------------------------
# AC_W3M_VI_PREC_NUM
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_VI_PREC_NUM],
[AC_SUBST(VI_PREC_NUM)
AC_MSG_CHECKING(if --enable-vinum option specified)
AC_ARG_ENABLE(vinum,
 [  --enable-vinum          enable vi-like behavior for for '2 SPC' or '2 b'],,
 [enable_vinum="no"])
test x$enable_vinum = xyes && AC_DEFINE(VI_PREC_NUM)
AC_MSG_RESULT($enable_vinum)])
#
# ----------------------------------------------------------------
# AC_W3M_MARK
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_MARK],
[AC_SUBST(USE_MARK)
AC_MSG_CHECKING(if --enable-mark option specified)
AC_ARG_ENABLE(mark,
 [  --enable-mark           enable mark operations],,
 [enable_mark="no"])
 test x$enable_mark = xyes && AC_DEFINE(USE_MARK)
 AC_MSG_RESULT($enable_mark)])
# 
# ----------------------------------------------------------------
# AC_W3M_LABEL_TOPLINE
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_LABEL_TOPLINE],
[AC_SUBST(LABEL_TOPLINE)
 AC_MSG_CHECKING(if label at topline enabled)
 AC_ARG_ENABLE(label_topline,
 [  --enable-label-topline    enable label top line],,
 [enable_label_topline="no"])
 test x$enable_label_topline = xyes && AC_DEFINE(LABEL_TOPLINE)
 AC_MSG_RESULT($enable_label_topline)])
# 
# ----------------------------------------------------------------
# AC_W3M_NEXTPAGE_TOPLINE
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_NEXTPAGE_TOPLINE],
[AC_SUBST(NEXTPAGE_TOPLINE)
 AC_MSG_CHECKING(if nextpage topline enabled)
 AC_ARG_ENABLE(nextpage_topline,
 [  --enable-nextpage-topline    enable nextpage top line],,
 [enable_nextpage_topline="no"])
 test x$enable_nextpage_topline = xyes && AC_DEFINE(NEXTPAGE_TOPLINE)
 AC_MSG_RESULT($enable_nextpage_topline)])
#
# ----------------------------------------------------------------
# AC_W3M_DIGEST_AUTH
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_DIGEST_AUTH],
[AC_SUBST(USE_DIGEST_AUTH)
 AC_MSG_CHECKING(if digest auth is enabled)
 AC_ARG_ENABLE(digest_auth,
 [  --enable-digest-auth        enable digest auth],,
 [enable_digest_auth="no"])
 test x$enable_digest_auth = xyes && AC_DEFINE(USE_DIGEST_AUTH)
 AC_MSG_RESULT($enable_digest_auth)])
#
# ----------------------------------------------------------------
# AC_W3M_MIGEMO
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_MIGEMO],
[AC_SUBST(USE_MIGEMO)
 AC_SUBST(DEF_MIGEMO_COMMAND)
 migemo_command="migemo -t egrep /usr/local/share/migemo/migemo-dict"
 AC_MSG_CHECKING(if migemo is supported with)
 AC_ARG_WITH(migemo,
  [  --with-migemo=MIGEMO_COMMAND   migemo command],
  [x$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 libdir in /lib /usr/lib /usr/local/lib /usr/ucblib /usr/ccslib /usr/ccs/lib
 do
   if test -f $libdir/lib$lib.a -o -f $libdir/lib$lib.so ; then 
    LIBS="$LIBS -l$lib"
    extlib="found at $libdir"
    break
   fi
 done
 AC_MSG_RESULT($extlib)])
#
# ----------------------------------------------------------------
# AC_W3M_GC
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_GC],
[AC_MSG_CHECKING(GC library exists)
AC_ARG_WITH(gc,
 [  --with-gc=PATH	  libgc PATH],
 [test x$with_gc = xno && AC_MSG_ERROR([You can not build w3m without gc])],
 [with_gc=yes])
 AC_MSG_RESULT($with_gc)
 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)
    gc_libdir="$with_gc"
    test x"$gc_libdir" = xyes && gc_libdir="/lib /usr/lib /usr/local/lib /usr/ucblib /usr/ccslib /usr/ccs/lib ${HOME}/lib"
   gclibdir=no
   for dir in $gc_libdir; do
     ldflags="$LDFLAGS"
     LDFLAGS="$LDFLAGS -L$dir"
     AC_CHECK_LIB(gc, GC_version, [gclibdir=$dir; LIBS="$LIBS -L$dir -lgc"; break])
     LDFLAGS="$ldflags"
     unset ac_cv_gc_GC_version
   done
   if test x$gclibdir = xno; then
    AC_MSG_ERROR([libgc not found])
   fi
 fi
 unset ac_cv_header_gc_h
 AC_CHECK_HEADER(gc.h)
 if test x$ac_cv_header_gc_h = xno; then
   AC_MSG_CHECKING(GC header location)
   gc_includedir="$with_gc"
   test x"$gc_includedir" = xyes && gc_includedir="/usr/include /usr/include/gc /usr/local/include /usr/local/include/gc ${HOME}/include"
   gcincludedir=no
   unset ac_cv_header_gc_h
   for dir in $gc_includedir; do
     cppflags="$CPPFLAGS"
     CPPFLAGS="$CPPFLAGS -I$dir"
     AC_MSG_CHECKING($dir)
     AC_CHECK_HEADER(gc.h, [gcincludedir=$dir; CPPFLAGS="$CPPFLAGS -I$dir"; break])
     CPPFLAGS="$cppflags"
     unset ac_cv_header_gc_h
   done
   if test x$gcincludedir = xno; then
     AC_MSG_ERROR([gc.h 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=PATH        support https protocol],,
 [with_ssl="no"])
AC_MSG_RESULT($with_ssl)
if test "${with_ssl+set}" = xset; then
  AC_DEFINE(USE_SSL)
  AC_MSG_CHECKING(for SSL library/header)
  test -d $with_ssl || $with_ssl="/usr/openssl /usr/ssl /usr /usr/local/openssl /usr/local/ssl /usr/local"
  for i in $with_ssl
  do
     if test -f "$i/include/openssl/ssl.h"; then
        CFLAGS="$CFLAGS -I$i/include/openssl"
     elif test -f "$i/include/ssl.h"; then
        CFLAGS="$CFLAGS -I$i/include"
     fi
     if test -f "$i/lib/libssl.a"; then
	LIBS="$LIBS -L$i/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
   save_ifs="$IFS"; IFS="."
   set -- $version
   IFS="$save_ifs"
   if test "$[1]" -ne "$3" -o "$[2]" -lt "$4" -o "$[3]" -lt "$5"; then
    AC_MSG_ERROR([$1 is too old Install $1 (version >= $3.$4.$5)])
   fi
   $6
 else
   $7
 fi])
#
# ----------------------------------------------------------------
# AC_W3M_IMAGE
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_IMAGE],
[AC_SUBST(USE_IMAGE)
 AC_SUBST(USE_W3MIMG_X11)
 AC_SUBST(USE_W3MIMG_FB)
 AC_SUBST(W3MIMGDISPLAY_SETUID)
 AC_SUBST(INSTALL_W3MIMGDISPLAY)
 INSTALL_W3MIMGDISPLAY='${INSTALL_PROGRAM}'
 AC_DEFINE(INSTALL_W3MIMGDISPLAY, $INSTALL_W3MIMGDISPLAY)
 AC_SUBST(USE_GDKPIXBUF)
 AC_SUBST(USE_IMLIB)
 AC_SUBST(USE_IMLIB2)
 AC_SUBST(IMGOBJS)
 AC_SUBST(IMGX11CFLAGS)
 AC_SUBST(IMGX11LDFLAGS)
 AC_SUBST(IMGFBCFLAGS)
 AC_SUBST(IMGFBLDFLAGS)
 AC_MSG_CHECKING(if image is enabled)
 AC_ARG_ENABLE(image,
 [ --enable-image=x11,fb,fb+s        enable inline image],,
 [enable_image="no"])
 AC_MSG_RESULT($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
  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_W3M_IPv6
# ----------------------------------------------------------------
AC_DEFUN([AC_W3M_IPv6],
[AC_MSG_CHECKING(if --enable-ipv6 option specified)
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 libdir in /usr/local/v6/lib /usr/local/lib /usr/lib
    do
	if test -f $libdir/libinet6.a; then
	  if test $libdir != "/usr/lib"; then
		LIBS="$LIBS -L$libdir"
	  fi
	  AC_CHECK_LIB(inet6, getaddrinfo,
		[use_libinet6="found"; LIBS="$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])