bool path_is_absolute(const char *p);
char *path_make_absolute(const char *p, const char *prefix);
char *path_make_absolute_cwd(const char *p);
-int path_parent(const char *path, char **parent);
char *path_kill_slashes(char *path);
bool path_startswith(const char *path, const char *prefix);
bool path_equal(const char *a, const char *b);