dnl This file is part of GNU mailutils. dnl Copyright (C) 2003 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 2, 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 dnl along with GNU Mailutils; if not, write to the Free Software dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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])