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dnl This file is part of GNU mailutils.
dnl Copyright (C) 2002 Free Software Foundation, Inc.
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program; if not, write to the Free Software
dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
dnl

dnl MU_ENABLE_SUPPORT(feature, [action-if-true], [action-if-false])

AC_DEFUN([MU_ENABLE_SUPPORT], [
	pushdef([mu_upcase],translit($1,[a-z-],[A-Z_]))
	pushdef([mu_cache_var],[mu_cv_enable_]translit($1,[-],[_]))

	AC_ARG_ENABLE($1, 
	              AC_HELP_STRING([--disable-]$1,
		                     [disable ]$1[ support]),
	              [
	case "${enableval}" in
		yes) mu_cache_var=yes;;
                no)  mu_cache_var=no;;
	        *)   AC_MSG_ERROR(bad value ${enableval} for --disable-$1) ;;
        esac],
                      [mu_cache_var=yes])

	if test x"[$]mu_cache_var" = x"yes"; then
		AC_DEFINE([ENABLE_]mu_upcase,1,[Define this if you enable $1 support])
		ifelse([$2],,,$2)
	ifelse([$3],,,else
                $3)
	fi

	popdef([mu_upcase])
	popdef([mu_cache_var])
])



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