src/unixcompat.h

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