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9 #ifndef omalloc_getpagesize
11 # ifndef _SC_PAGE_SIZE
12 # define _SC_PAGE_SIZE _SC_PAGESIZE
16 # define omalloc_getpagesize sysconf(_SC_PAGE_SIZE)
18 # if defined(BSD) || defined(DGUX) || defined(HAVE_GETPAGESIZE)
19 extern size_t getpagesize();
20 # define omalloc_getpagesize getpagesize()
22 # include <sys/param.h>
24 # define omalloc_getpagesize EXEC_PAGESIZE
28 # define omalloc_getpagesize NBPG
30 # define omalloc_getpagesize (NBPG * CLSIZE)
34 # define omalloc_getpagesize NBPC
37 # define omalloc_getpagesize PAGESIZE
39 # define omalloc_getpagesize (4096)