wsutil/wsgcrypt.h

   1 /* wsgcrypt.h
   2  *
   3  * Wrapper around libgcrypt's include file gcrypt.h.
   4  * For libgcrypt 1.5.0, including gcrypt.h directly brings up lots of
   5  * compiler warnings about deprecated definitions.
   6  * Try to work around these warnings to ensure a clean build with -Werror.
   7  *
   8  * $Id$
   9  *
  10  * Wireshark - Network traffic analyzer
  11  * By Gerald Combs <gerald@wireshark.org>
  12  * Copyright 2007 Gerald Combs
  13  *
  14  * This program is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU General Public License
  16  * as published by the Free Software Foundation; either version 2
  17  * of the License, or (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  27  */
  28
  29 #ifndef __WSGCRYPT_H__
  30 #define __WSGCRYPT_H__
  31
  32 #ifdef HAVE_LIBGCRYPT
  33
  34 #ifdef __CLANG__
  35
  36 #pragma clang diagnostic push
  37 #pragma clang diagnostic warning "-Wdeprecated-declarations"
  38 #include <gcrypt.h>
  39 #pragma clang diagnostic pop
  40
  41 #else
  42
  43 #if defined(__GNUC__) && defined(__GNUC_MINOR__)
  44 #define _GCC_VERSION (__GNUC__*100 + __GNUC_MINOR__*10)
  45 #else
  46 #define _GCC_VERSION 0
  47 #endif
  48
  49 /* check the gcc version
  50    pragma GCC diagnostic error/warning was introduced in gcc 4.2.0
  51    pragma GCC diagnostic push/pop was introduced in gcc 4.6.0 */
  52
  53 #if _GCC_VERSION<420
  54
  55 /* no gcc or gcc version<4.2.0: we can't do anything */
  56 #include <gcrypt.h>
  57
  58 #elif _GCC_VERSION<460
  59
  60 /* gcc version is between 4.2.0 and 4.6.0:
  61    diagnostic warning/error is supported, diagnostic push/pop is not supported */
  62 #pragma GCC diagnostic warning "-Wdeprecated-declarations"
  63 #include <gcrypt.h>
  64 #pragma GCC diagnostic error "-Wdeprecated-declarations"
  65
  66 #else
  67
  68 /* gcc version is >= 4.6.0: we can use push/pop */
  69 #pragma GCC diagnostic push
  70 #pragma GCC diagnostic warning "-Wdeprecated-declarations"
  71 #include <gcrypt.h>
  72 #pragma GCC diagnostic pop
  73
  74 #endif /* _GCC_VERSION */
  75
  76 #endif /* __CLANG__ */
  77
  78 #endif /* HAVE_LIBGRYPT */
  79
  80 #endif /* __WSGCRYPT_H__ */