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dnl This file is part of GNU mailutils.
dnl Copyright (C) 2003, 2007 Free Software Foundation, Inc.
dnl
dnl GNU Mailutils 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 3, or (at your option)
dnl any later version.
dnl
dnl GNU Mailutils 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 along
dnl with GNU Mailutils; if not, write to the Free Software Foundation,
dnl Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
dnl
AH_TEMPLATE(BDB2_CURSOR_LASTARG,
[Last argument to the cursor member of Berkeley 2 DB structure])
dnl The cursor member of DB structure used to take three arguments in older
dnl implementations of Berkeley DB. Newer versions (>= 4.0) declare
dnl it as taking four arguments.
dnl This macro checks which of the variants we have.
AC_DEFUN([MU_DB2_CURSOR],
[AC_CACHE_CHECK([whether db->cursor takes 4 arguments],
[mu_cv_bdb2_cursor_four_args],
[AC_TRY_COMPILE([#include <db.h>],
[
DB *db;
db->cursor(NULL, NULL, NULL, 0)
],
[mu_cv_bdb2_cursor_four_args=yes],
[mu_cv_bdb2_cursor_four_args=no])])
if test $mu_cv_bdb2_cursor_four_args = yes; then
AC_DEFINE(BDB2_CURSOR_LASTARG,[,0])
else
AC_DEFINE(BDB2_CURSOR_LASTARG,[])
fi])
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