lib/libspl/include/sys/poll.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 2017 Zettabyte Software, LLC.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*
  28  * Compiling against musl correctly points out that including sys/poll.h is
  29  * disallowed by the Single UNIX Specification when building in userspace. We
  30  * implement a dummy header to redirect the include to the proper header.
  31  * However, glibc, klibc and uclibc break this shim by including sys/poll.h
  32  * from poll.h, so we add explicit exceptions for them.
  33  */
  34 #ifndef _LIBSPL_SYS_POLL_H
  35 #define _LIBSPL_SYS_POLL_H
  36 #if defined(__GLIBC__) || defined(__KLIBC__) || defined(__UCLIBC__)
  37 #include_next <sys/poll.h>
  38 #else
  39 #include <poll.h>
  40 #endif
  41 #endif /* _LIBSPL_SYS_POLL_H */