##### http://autoconf-archive.cryp.to/cf_ebcdic.html
#
# SYNOPSIS
#
#   CF_EBCDIC
#
# DESCRIPTION
#
#   If the target character set is EBCDIC, defines variables
#   cf_cv_ebcdic, EBCDIC, and NOT_ASCII.
#
#   I originally wrote this and submitted it to the Lynx distribution.
#   Editorial revisions by Tom Dickey, et. al.
#
# LAST MODIFICATION
#
#   2000-07-19
#
# COPYLEFT
#
#   Copyright (c) 2000 Paul Gilmartin <pg@sweng.stortek.com>
#
#   This program is free software; you can redistribute it and/or
#   modify it under the terms of the GNU General Public License as
#   published by the Free Software Foundation; either version 2 of the
#   License, or (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful, but
#   WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
#   General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program; if not, write to the Free Software
#   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
#   02111-1307, USA.
#
#   As a special exception, the respective Autoconf Macro's copyright
#   owner gives unlimited permission to copy, distribute and modify the
#   configure scripts that are the output of Autoconf when processing
#   the Macro. You need not follow the terms of the GNU General Public
#   License when using or distributing such scripts, even though
#   portions of the text of the Macro appear in them. The GNU General
#   Public License (GPL) does govern all other use of the material that
#   constitutes the Autoconf Macro.
#
#   This special exception to the GPL applies to versions of the
#   Autoconf Macro released by the Autoconf Macro Archive. When you
#   make and distribute a modified version of the Autoconf Macro, you
#   may extend this special exception to the GPL to apply to your
#   modified version as well.

dnl Check whether character set is EBCDIC.
AC_DEFUN([CF_EBCDIC],[
AC_MSG_CHECKING(if character set is EBCDIC)
AC_CACHE_VAL(cf_cv_ebcdic,[
        AC_TRY_COMPILE([ ],
[ /* TryCompile function for CharSet.
   Treat any failure as ASCII for compatibility with existing art.
   Use compile-time rather than run-time tests for cross-compiler
   tolerance.  */
#if '0'!=240
make an error "Character set is not EBCDIC"
#endif ],
[ # TryCompile action if true
cf_cv_ebcdic=yes ],
[ # TryCompile action if false
cf_cv_ebcdic=no])
# end of TryCompile ])
# end of CacheVal CvEbcdic
AC_MSG_RESULT($cf_cv_ebcdic)
case "$cf_cv_ebcdic" in  #(vi
    yes) AC_DEFINE(EBCDIC)
         AC_DEFINE(NOT_ASCII);; #(vi
    *)   ;;
esac
])dnl