wordexp_t
wordexp_t exec_args_we;
wordexp_t wrdexp_buf;
extern int wordexp(const char *_RESTRICT_KYWD, wordexp_t *_RESTRICT_KYWD, int);
extern void wordfree(wordexp_t *);
wordexp(const char *word, wordexp_t *wp, int flags)
wordexp_t wptmp;
append(wordexp_t *wp, char *str)
wordfree(wordexp_t *wp)
static int append(wordexp_t *, char *);