src/whichos.h

   1 /* whichos.h  Detect which OS we're compiling for.
   2  * Copyright (C) 2005 Olly Betts
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  17  */
  18
  19 #ifndef SURVEX_WHICHOS_H
  20 #define SURVEX_WHICHOS_H
  21
  22 /* Attempt to auto-detect OS. */
  23 #if (defined(unix) || defined(UNIX))
  24 # define OS_UNIX 1
  25 #elif defined(__GNUC__) && defined(__APPLE_CC__)
  26 /* MacOS X is Unix for most purposes. */
  27 # define OS_UNIX 1
  28 # define OS_UNIX_MACOSX 1
  29 #endif
  30
  31 #if !OS_UNIX
  32 # if defined WIN32 || defined _WIN32 || defined __WIN32 || defined __WIN32__
  33 #  define OS_WIN32 1
  34 # endif
  35 #endif
  36
  37 #ifndef OS_UNIX
  38 # define OS_UNIX 0
  39 #endif
  40
  41 #ifndef OS_UNIX_MACOSX
  42 # define OS_UNIX_MACOSX 0
  43 #endif
  44
  45 #ifndef OS_WIN32
  46 # define OS_WIN32 0
  47 #endif
  48
  49 /* Check that we detected an OS! */
  50 # if !(OS_UNIX+OS_WIN32)
  51 #  error Failed to detect which os to compile for
  52 # endif
  53
  54 #endif