# include <libc.h>
# include <sys/ioctl.h>
# if defined(__STRICT_ANSI__)
#  define isascii(c)  ((unsigned)(c)<=0177)
# endif
  extern char* strdup (const char* string);
# ifndef _POSIX_SOURCE
  typedef unsigned short mode_t;
  typedef int sigset_t;
#  define SIG_BLOCK	00
#  define SIG_UNBLOCK	01
#  define SIG_SETMASK	02
#  define NEED_SIG_JMP
# endif

# define JMP_BUF
# define NO_WAITPID
  typedef struct mutex slock_t;
