* libguile/fports.h (scm_t_fport): Add options field.
  (SCM_FDES_RANDOM_P): Deprecate.
  (scm_i_fdes_to_port): Add options argument.
* libguile/fports.c (scm_i_fdes_to_port): Add options argument.  Only
  verify FD if SCM_FPORT_OPTION_VERIFY is there.
  (scm_fdes_to_port, scm_open_file_with_encoding): Adapt to
  scm_i_fdes_to_port changes.
  (fport_random_access_p): Don't try to seek if NOT_SEEKABLE option is
  set.
* libguile/deprecated.h:
* libguile/deprecated.c (SCM_FDES_RANDOM_P): Deprecate.
* NEWS: Add deprecation.
* libguile/filesys.c:
* libguile/ioext.c:
* libguile/posix.c:
* libguile/read.c:
* libguile/socket.c: Adapt callers.