/*

 * Copyright (c) 1994, 1995, 1996

 *	The Regents of the University of California.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. All advertising materials mentioning features or use of this software

 *    must display the following acknowledgement:

 *	This product includes software developed by the Computer Systems

 *	Engineering Group at Lawrence Berkeley Laboratory.

 * 4. Neither the name of the University nor of the Laboratory may be used

 *    to endorse or promote products derived from this software without

 *    specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 */

#ifndef ftmacros_h

#define	ftmacros_h

/*

 * Define some feature test macros to make sure that everything we want

 * to be declared gets declared.

 *

 * On some UN*Xes we need to force strtok_r() to be declared.

 * We do *NOT* want to define _POSIX_C_SOURCE, as that tends

 * to make non-POSIX APIs that we use unavailable.

 * XXX - is there no portable way to say "please pollute the

 * namespace to the maximum extent possible"?

 */

#if defined(sun) || defined(__sun)

  #define __EXTENSIONS__

  /*

   * We also need to define _XPG4_2 in order to get

   * the Single UNIX Specification version of

   * recvmsg().

   */

  #define _XPG4_2

#elif defined(_hpux) || defined(hpux) || defined(__hpux)

  #define _REENTRANT

  /*

   * We need this to get the versions of socket functions that

   * use socklen_t.  Define it only if it's not already defined,

   * so we don't get redefiniton warnings.

   */

  #ifndef _XOPEN_SOURCE_EXTENDED

    #define _XOPEN_SOURCE_EXTENDED

  #endif

  /*

   * XXX - the list of PA-RISC options for GCC makes it sound as if

   * building code that uses a particular vintage of UNIX API/ABI

   * is complicated:

   *

   *    https://gcc.gnu.org/onlinedocs/gcc/HPPA-Options.html

   *

   * See the description of the -munix flag.

   *

   * We probably want libpcap to work with programs built for any

   * UN*X standard.  I'm not sure whether that's possible and, if

   * it is, what sort of stuff it'd have to do.

   *

   * It might also be a requirement that we build with a special

   * flag to allow the library to be used with threaded code, at

   * least with HP's C compiler; hopefully doing so won't make it

   * *not* work with *un*-threaded code.

   */

#elif defined(__linux__) || defined(linux) || defined(__linux)

  /*

   * Turn on _GNU_SOURCE to get everything GNU libc has to offer,

   * including asprintf().

   *

   * Unfortunately, one thing it has to offer is a strerror_r()

   * that's not POSIX-compliant, but we deal with that in

   * pcap_fmt_errmsg_for_errno().

   */

  #define _GNU_SOURCE

  /*

   * We turn on both _DEFAULT_SOURCE and _BSD_SOURCE to try to get

   * the BSD u_XXX types, such as u_int and u_short, defined.  We

   * define _DEFAULT_SOURCE first, so that newer versions of GNU libc

   * don't whine about _BSD_SOURCE being deprecated; we still have

   * to define _BSD_SOURCE to handle older versions of GNU libc that

   * don't support _DEFAULT_SOURCE.

   */

  #define _DEFAULT_SOURCE

  #define _BSD_SOURCE

#endif

#endif