[Scheme-reports] Top-level cond-expand for backwards compatibility

[William D Clinger <will@x>]

Christian Stigen Larsen wrote:

> I could not get this to work with Scheme48 or Larceny and didn't attempt it
> on other implementations.

The reasons it didn't work in Larceny aren't very interesting:

Larceny doesn't yet support the R7RS.

In R6RS and ERR5RS modes, Larceny doesn't support SRFI 0.

In R5RS mode, SRFI 0 has to be loaded by incanting (require 'srfi-0).
Afterwards, your example works in Larceny's R5RS mode.

Will

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