lib/libspl/include/sys/feature_tests.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or https://opensource.org/licenses/CDDL-1.0.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _SYS_FEATURE_TESTS_H
  28 #define _SYS_FEATURE_TESTS_H
  29
  30 #define ____cacheline_aligned
  31
  32 #if !defined(zfs_fallthrough) && !defined(_LIBCPP_VERSION)
  33 #if defined(HAVE_IMPLICIT_FALLTHROUGH)
  34 #define zfs_fallthrough         __attribute__((__fallthrough__))
  35 #else
  36 #define zfs_fallthrough         ((void)0)
  37 #endif
  38 #endif
  39
  40 #endif