From bac7913ae4c9cb8a75a8758077aa94023449569b Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Fri, 30 Jul 1993 22:30:50 +0000 Subject: Initial revision --- src/getpagesize.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 src/getpagesize.h (limited to 'src/getpagesize.h') diff --git a/src/getpagesize.h b/src/getpagesize.h new file mode 100644 index 00000000000..4e513c31ade --- /dev/null +++ b/src/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 +#endif + +#ifdef _SC_PAGESIZE +#define getpagesize() sysconf(_SC_PAGESIZE) +#else + +#include + +#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 */ -- cgit v1.2.1