src/unixcompat.h

   1
   2 /** \file unixcompat.h
   3  *  \brief Header: collects differences between the various Unix
   4  *
   5  *  This header file collects differences between the various Unix
   6  *  variants that are supported by the Midnight Commander and provides
   7  *  replacement routines if they are not natively available.
   8  *  The major/minor macros are not specified in SUSv3, so we can only hope
   9  *  they are provided by the operating system or emulate it.
  10  */
  11
  12 #ifndef MC_UNIXCOMPAT_H
  13 #define MC_UNIXCOMPAT_H
  14
  15 #include <sys/types.h>          /* BSD */
  16 #ifdef HAVE_SYS_MKDEV_H
  17 # include <sys/mkdev.h>         /* Solaris 9 */
  18 #endif
  19 #if defined(_AIX) && defined(HAVE_SYS_SYSMACROS_H)
  20 # include <sys/sysmacros.h>     /* AIX */
  21 #endif
  22
  23 #ifndef major
  24 # warning major() is undefined. Device numbers will not be shown correctly.
  25 # define major(devnum) (((devnum) >> 8) & 0xff)
  26 #endif
  27 #ifndef minor
  28 # warning minor() is undefined. Device numbers will not be shown correctly.
  29 # define minor(devnum) (((devnum) & 0xff))
  30 #endif
  31 #ifndef makedev
  32 # warning makedev() is undefined. Device numbers will not be shown correctly.
  33 # define makedev(major,minor) ((((major) & 0xff) << 8) | ((minor) & 0xff))
  34 #endif
  35
  36 #endif