_NFILE
#define _NFILE getdtablesize()
# define _NFILE 20
#define _NFILE 60 /* initial number of streams: Intel x86 ABI */
#define _NFILE 20 /* initial number of streams: SPARC ABI and default */
#define _NFILE 10
#define _NFILE 60 /* initial number of streams: Intel x86 ABI */
#define _NFILE 20 /* initial number of streams: SPARC ABI and default */