Mercurial > hg > octave-nkf > gnulib-hg
changeset 1880:47d1f5864f6b
.
author | Jim Meyering <jim@meyering.net> |
---|---|
date | Thu, 15 Jul 1999 09:31:44 +0000 |
parents | c18a90c0e39c |
children | 13f907e16c9a |
files | lib/getpagesize.h |
diffstat | 1 files changed, 35 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
new file mode 100644 --- /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 */