From 1950561a91675a2502b866e36bc4a25c8fae2d01 Mon Sep 17 00:00:00 2001 From: Jim Meyering Date: Thu, 15 Jul 1999 09:31:44 +0000 Subject: . --- lib/getpagesize.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 lib/getpagesize.h (limited to 'lib') diff --git a/lib/getpagesize.h b/lib/getpagesize.h new file mode 100644 index 000000000..4e513c31a --- /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 +#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 v1.2.3-70-g09d2