diff options
| author | Jim Meyering <jim@meyering.net> | 1999-07-15 09:31:44 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 1999-07-15 09:31:44 +0000 |
| commit | 3dba1682f1b6f9a19fc9df51cae3ea9c3c273951 (patch) | |
| tree | 3b56600aa84b5d4a79a26ed9e7b5d51cacfdaeec | |
| parent | d1d0f73fde7649d1bb2250cc27cc1359cda196f1 (diff) | |
| download | gnulib-3dba1682f1b6f9a19fc9df51cae3ea9c3c273951.tar.gz | |
.
| -rw-r--r-- | lib/getpagesize.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/lib/getpagesize.h b/lib/getpagesize.h new file mode 100644 index 0000000000..4e513c31ad --- /dev/null +++ b/lib/getpagesize.h @@ -0,0 +1,35 @@ +/* Emulate getpagesize on systems that lack it. */ + +#ifndef HAVE_GETPAGESIZE + +#ifdef VMS +#define getpagesize() 512 +#endif + +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + +#ifdef _SC_PAGESIZE +#define getpagesize() sysconf(_SC_PAGESIZE) +#else + +#include <sys/param.h> + +#ifdef EXEC_PAGESIZE +#define getpagesize() EXEC_PAGESIZE +#else +#ifdef NBPG +#define getpagesize() NBPG * CLSIZE +#ifndef CLSIZE +#define CLSIZE 1 +#endif /* no CLSIZE */ +#else /* no NBPG */ +#ifdef NBPC +#define getpagesize() NBPC +#endif /* NBPC */ +#endif /* no NBPG */ +#endif /* no EXEC_PAGESIZE */ +#endif /* no _SC_PAGESIZE */ + +#endif /* not HAVE_GETPAGESIZE */ |