> Last year Lassie and I

Woof! :-)

> were thinking we should create a Grand Unified
> Scheme Error System, inspired in part by the neat system of coding
> Oracle uses in its error reporting.  This anticipated transition
> suggests we should work on it ASAP.

Good call.

Since SRFI 198 is very Unix-specific, we should perhaps submit a new
SRFI about the generic framework.

However, it might be a good idea to take the Windows API (and perhaps
other OS error APIs) into account in 198.