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	# Helper functions for option handling. -- Autoconf --
	#
	# Copyright (C) 2004, 2005, 2007, 2008, 2009 Free Software Foundation,
	# Inc.
	# Written by Gary V. Vaughan, 2004
	#
	# This file is free software; the Free Software Foundation gives
	# unlimited permission to copy and/or distribute it, with or without
	# modifications, as long as this notice is preserved.

	# serial 7 ltoptions.m4

	# This is to help aclocal find these macros, as it can't see m4_define.
	AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])


	# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
	# ------------------------------------------
	m4_define([_LT_MANGLE_OPTION],
	[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])


	# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
	# ---------------------------------------
	# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
	# matching handler defined, dispatch to it. Other OPTION-NAMEs are
	# saved as a flag.
	m4_define([_LT_SET_OPTION],
	[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
	m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
	_LT_MANGLE_DEFUN([$1], [$2]),
	[m4_warning([Unknown $1 option `$2'])])[]dnl
	])


	# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
	# ------------------------------------------------------------
	# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
	m4_define([_LT_IF_OPTION],
	[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])


	# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
	# -------------------------------------------------------
	# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
	# are set.
	m4_define([_LT_UNLESS_OPTIONS],
	[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
	[m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
	[m4_define([$0_found])])])[]dnl
	m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
	])[]dnl
	])


	# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
	# ----------------------------------------
	# OPTION-LIST is a space-separated list of Libtool options associated
	# with MACRO-NAME. If any OPTION has a matching handler declared with
	# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
	# the unknown option and exit.
	m4_defun([_LT_SET_OPTIONS],
	[# Set options
	m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
	[_LT_SET_OPTION([$1], _LT_Option)])

	m4_if([$1],[LT_INIT],[
	dnl
	dnl Simply set some default values (i.e off) if boolean options were not
	dnl specified:
	_LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
	])
	_LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
	])
	dnl
	dnl If no reference was made to various pairs of opposing options, then
	dnl we run the default mode handler for the pair. For example, if neither
	dnl `shared' nor `disable-shared' was passed, we enable building of shared
	dnl archives by default:
	_LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
	_LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
	_LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
	_LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
	[_LT_ENABLE_FAST_INSTALL])
	])
	])# _LT_SET_OPTIONS


	## --------------------------------- ##
	## Macros to handle LT_INIT options. ##
	## --------------------------------- ##

	# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
	# -----------------------------------------
	m4_define([_LT_MANGLE_DEFUN],
	[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])])


	# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
	# -----------------------------------------------
	m4_define([LT_OPTION_DEFINE],
	[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
	])# LT_OPTION_DEFINE


	# dlopen
	# ------
	LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
	])

	AU_DEFUN([AC_LIBTOOL_DLOPEN],
	[_LT_SET_OPTION([LT_INIT], [dlopen])
	AC_DIAGNOSE([obsolete],
	[$0: Remove this warning and the call to _LT_SET_OPTION when you
	put the `dlopen' option into LT_INIT's first parameter.])
	])

	dnl aclocal-1.4 backwards compatibility:
	dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])


	# win32-dll
	# ---------
	# Declare package support for building win32 dll's.
	LT_OPTION_DEFINE([LT_INIT], [win32-dll],
	[enable_win32_dll=yes

	case $host in
	--cygwin* \| --mingw* \| --pw32* \| --cegcc*)
	AC_CHECK_TOOL(AS, as, false)
	AC_CHECK_TOOL(DLLTOOL, dlltool, false)
	AC_CHECK_TOOL(OBJDUMP, objdump, false)
	;;
	esac

	test -z "$AS" && AS=as
	_LT_DECL([], [AS], [1], [Assembler program])dnl

	test -z "$DLLTOOL" && DLLTOOL=dlltool
	_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl

	test -z "$OBJDUMP" && OBJDUMP=objdump
	_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl
	])# win32-dll

	AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
	[AC_REQUIRE([AC_CANONICAL_HOST])dnl
	_LT_SET_OPTION([LT_INIT], [win32-dll])
	AC_DIAGNOSE([obsolete],
	[$0: Remove this warning and the call to _LT_SET_OPTION when you
	put the `win32-dll' option into LT_INIT's first parameter.])
	])

	dnl aclocal-1.4 backwards compatibility:
	dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])


	# _LT_ENABLE_SHARED([DEFAULT])
	# ----------------------------
	# implement the --enable-shared flag, and supports the `shared' and
	# `disable-shared' LT_INIT options.
	# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
	m4_define([_LT_ENABLE_SHARED],
	[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
	AC_ARG_ENABLE([shared],
	[AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
	[build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
	[p=${PACKAGE-default}
	case $enableval in
	yes) enable_shared=yes ;;
	no) enable_shared=no ;;
	*)
	enable_shared=no
	# Look at the argument we got. We use all the common list separators.
	lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
	for pkg in $enableval; do
	IFS="$lt_save_ifs"
	if test "X$pkg" = "X$p"; then
	enable_shared=yes
	fi
	done
	IFS="$lt_save_ifs"
	;;
	esac],
	[enable_shared=]_LT_ENABLE_SHARED_DEFAULT)

	_LT_DECL([build_libtool_libs], [enable_shared], [0],
	[Whether or not to build shared libraries])
	])# _LT_ENABLE_SHARED

	LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
	LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])

	# Old names:
	AC_DEFUN([AC_ENABLE_SHARED],
	[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared])
	])

	AC_DEFUN([AC_DISABLE_SHARED],
	[_LT_SET_OPTION([LT_INIT], [disable-shared])
	])

	AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
	AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])

	dnl aclocal-1.4 backwards compatibility:
	dnl AC_DEFUN([AM_ENABLE_SHARED], [])
	dnl AC_DEFUN([AM_DISABLE_SHARED], [])



	# _LT_ENABLE_STATIC([DEFAULT])
	# ----------------------------
	# implement the --enable-static flag, and support the `static' and
	# `disable-static' LT_INIT options.
	# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
	m4_define([_LT_ENABLE_STATIC],
	[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
	AC_ARG_ENABLE([static],
	[AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
	[build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
	[p=${PACKAGE-default}
	case $enableval in
	yes) enable_static=yes ;;
	no) enable_static=no ;;
	*)
	enable_static=no
	# Look at the argument we got. We use all the common list separators.
	lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
	for pkg in $enableval; do
	IFS="$lt_save_ifs"
	if test "X$pkg" = "X$p"; then
	enable_static=yes
	fi
	done
	IFS="$lt_save_ifs"
	;;
	esac],
	[enable_static=]_LT_ENABLE_STATIC_DEFAULT)

	_LT_DECL([build_old_libs], [enable_static], [0],
	[Whether or not to build static libraries])
	])# _LT_ENABLE_STATIC

	LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
	LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])

	# Old names:
	AC_DEFUN([AC_ENABLE_STATIC],
	[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static])
	])

	AC_DEFUN([AC_DISABLE_STATIC],
	[_LT_SET_OPTION([LT_INIT], [disable-static])
	])

	AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
	AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])

	dnl aclocal-1.4 backwards compatibility:
	dnl AC_DEFUN([AM_ENABLE_STATIC], [])
	dnl AC_DEFUN([AM_DISABLE_STATIC], [])



	# _LT_ENABLE_FAST_INSTALL([DEFAULT])
	# ----------------------------------
	# implement the --enable-fast-install flag, and support the `fast-install'
	# and `disable-fast-install' LT_INIT options.
	# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
	m4_define([_LT_ENABLE_FAST_INSTALL],
	[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
	AC_ARG_ENABLE([fast-install],
	[AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
	[optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
	[p=${PACKAGE-default}
	case $enableval in
	yes) enable_fast_install=yes ;;
	no) enable_fast_install=no ;;
	*)
	enable_fast_install=no
	# Look at the argument we got. We use all the common list separators.
	lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
	for pkg in $enableval; do
	IFS="$lt_save_ifs"
	if test "X$pkg" = "X$p"; then
	enable_fast_install=yes
	fi
	done
	IFS="$lt_save_ifs"
	;;
	esac],
	[enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT)

	_LT_DECL([fast_install], [enable_fast_install], [0],
	[Whether or not to optimize for fast installation])dnl
	])# _LT_ENABLE_FAST_INSTALL

	LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])])
	LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])])

	# Old names:
	AU_DEFUN([AC_ENABLE_FAST_INSTALL],
	[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
	AC_DIAGNOSE([obsolete],
	[$0: Remove this warning and the call to _LT_SET_OPTION when you put
	the `fast-install' option into LT_INIT's first parameter.])
	])

	AU_DEFUN([AC_DISABLE_FAST_INSTALL],
	[_LT_SET_OPTION([LT_INIT], [disable-fast-install])
	AC_DIAGNOSE([obsolete],
	[$0: Remove this warning and the call to _LT_SET_OPTION when you put
	the `disable-fast-install' option into LT_INIT's first parameter.])
	])

	dnl aclocal-1.4 backwards compatibility:
	dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], [])
	dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])


	# _LT_WITH_PIC([MODE])
	# --------------------
	# implement the --with-pic flag, and support the `pic-only' and `no-pic'
	# LT_INIT options.
	# MODE is either `yes' or `no'. If omitted, it defaults to `both'.
	m4_define([_LT_WITH_PIC],
	[AC_ARG_WITH([pic],
	[AS_HELP_STRING([--with-pic],
	[try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
	[pic_mode="$withval"],
	[pic_mode=default])

	test -z "$pic_mode" && pic_mode=m4_default([$1], [default])

	_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
	])# _LT_WITH_PIC

	LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])])
	LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])])

	# Old name:
	AU_DEFUN([AC_LIBTOOL_PICMODE],
	[_LT_SET_OPTION([LT_INIT], [pic-only])
	AC_DIAGNOSE([obsolete],
	[$0: Remove this warning and the call to _LT_SET_OPTION when you
	put the `pic-only' option into LT_INIT's first parameter.])
	])

	dnl aclocal-1.4 backwards compatibility:
	dnl AC_DEFUN([AC_LIBTOOL_PICMODE], [])

	## ----------------- ##
	## LTDL_INIT Options ##
	## ----------------- ##

	m4_define([_LTDL_MODE], [])
	LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive],
	[m4_define([_LTDL_MODE], [nonrecursive])])
	LT_OPTION_DEFINE([LTDL_INIT], [recursive],
	[m4_define([_LTDL_MODE], [recursive])])
	LT_OPTION_DEFINE([LTDL_INIT], [subproject],
	[m4_define([_LTDL_MODE], [subproject])])

	m4_define([_LTDL_TYPE], [])
	LT_OPTION_DEFINE([LTDL_INIT], [installable],
	[m4_define([_LTDL_TYPE], [installable])])
	LT_OPTION_DEFINE([LTDL_INIT], [convenience],
	[m4_define([_LTDL_TYPE], [convenience])])

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