gnu/usr.bin/groff/libgroff/getpagesize.h

   1 #ifdef BSD
   2 #ifndef BSD4_1
   3 #define HAVE_GETPAGESIZE
   4 #endif
   5 #endif
   6
   7 #ifndef HAVE_GETPAGESIZE
   8
   9 #include <sys/param.h>
  10
  11 #ifdef EXEC_PAGESIZE
  12 #define getpagesize() EXEC_PAGESIZE
  13 #else
  14 #ifdef NBPG
  15 #define getpagesize() NBPG * CLSIZE
  16 #ifndef CLSIZE
  17 #define CLSIZE 1
  18 #endif /* no CLSIZE */
  19 #else /* no NBPG */
  20 #define getpagesize() NBPC
  21 #endif /* no NBPG */
  22 #endif /* no EXEC_PAGESIZE */
  23
  24 #endif /* not HAVE_GETPAGESIZE */
  25