#  define USE_POSIX_TIME 
#  define USE_POSIX_SIGNALS
#  define NO_EMPTY_STMTS
#  define SYSV_DIRENT
#  define HAS_TEST_AND_SET
   typedef unsigned char slock_t;

#include <sys/isa_defs.h>

#ifndef		BIG_ENDIAN
#define		BIG_ENDIAN	4321
#endif
#ifndef		LITTLE_ENDIAN
#define		LITTLE_ENDIAN	1234
#endif
#ifndef		PDP_ENDIAN
#define		PDP_ENDIAN      3412
#endif
#ifndef		BYTE_ORDER
#define		BYTE_ORDER	LITTLE_ENDIAN
#endif

#ifndef         NAN

#ifndef         __nan_bytes
#define __nan_bytes             { 0, 0, 0, 0, 0, 0, 0xf8, 0x7f }
#endif /* __nan_bytes */

#ifdef          __GNUC__
#define NAN \
  (__extension__ ((union { unsigned char __c[8];                      \
                           double __d; })                             \
                  { __nan_bytes }).__d)

#else  /* Not GCC.  */
#define                NAN     (*(__const double *) __nan)
#endif /* GCC.  */
#endif /* NAN */

#ifndef        index
#define index  strchr
#endif

#ifndef HAVE_RUSAGE
#define                HAVE_RUSAGE     1
#endif


#  define USE_POSIX_TIME 
#  define USE_POSIX_SIGNALS
#  define NO_EMPTY_STMTS
#  define SYSV_DIRENT
#  define HAS_TEST_AND_SET
   typedef unsigned char slock_t;

#include <sys/isa_defs.h>

#ifndef		BIG_ENDIAN
#define		BIG_ENDIAN	4321
#endif
#ifndef		LITTLE_ENDIAN
#define		LITTLE_ENDIAN	1234
#endif
#ifndef		PDP_ENDIAN
#define		PDP_ENDIAN      3412
#endif
#ifndef		BYTE_ORDER
#define		BYTE_ORDER	LITTLE_ENDIAN
#endif

#ifndef         NAN

#ifndef         __nan_bytes
#define __nan_bytes             { 0, 0, 0, 0, 0, 0, 0xf8, 0x7f }
#endif /* __nan_bytes */

#ifdef          __GNUC__
#define NAN \
  (__extension__ ((union { unsigned char __c[8];                      \
                           double __d; })                             \
                  { __nan_bytes }).__d)

#else  /* Not GCC.  */
#define                NAN     (*(__const double *) __nan)
#endif /* GCC.  */
#endif /* NAN */

#ifndef        index
#define index  strchr
#endif

Remove HAVE_USAGE because it is no longer used.
Remove HAVE_USAGE because it is no longer used.
