These were relegated to a compatibility library
in R6RS. Do we want to keep them, drop them, or
move them to a library?
Compatibility library, I say.
They aren't in IEEE Scheme and are considered non-essential in R4RS and non-required in R5RS. I believe they should be in an optional compatibility library, so that it is conformant not to provide them.
The WG voted to put these procedures in a module.
Correction: The WG voted to remove these entirely.