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confuse 3.3

# codeset.m4 serial 5 (gettext-0.18.2)
dnl Copyright (C) 2000-2002, 2006, 2008-2013 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 From Bruno Haible.

AC_DEFUN([AM_LANGINFO_CODESET],
[
  AC_CACHE_CHECK([for nl_langinfo and CODESET], [am_cv_langinfo_codeset],
    [AC_LINK_IFELSE(
       [AC_LANG_PROGRAM(
          [[#include <langinfo.h>]],
          [[char* cs = nl_langinfo(CODESET); return !cs;]])],
       [am_cv_langinfo_codeset=yes],
       [am_cv_langinfo_codeset=no])
    ])
  if test $am_cv_langinfo_codeset = yes; then
    AC_DEFINE([HAVE_LANGINFO_CODESET], [1],
      [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
  fi
])