Per R7RS, cond-expand doesn't signal an error when there are no matching clauses. You can still use syntax-error to explicitly signal an error.
Per R7RS, cond-expand doesn't signal an error when there are no matching clauses.
You can still use syntax-error to explicitly signal an error.

norton/chibi-scheme,norton/chibi-scheme,norton/chibi-scheme,norton/chibi-scheme,norton/chibi-scheme,holmescn/chibi-scheme,holmescn/chibi-scheme,norton/chibi-scheme,holmescn/chibi-scheme,holmescn/chibi-scheme,holmescn/chibi-scheme