Workaround initialize-instance bug in CMUCL 18e via reader conditional.
Workaround initialize-instance bug in CMUCL 18e via reader conditional.

swflint/McCLIM,swflint/McCLIM,onixie/mcclim,slyrus/mcclim,antifuchs/mcclim,swflint/McCLIM,slyrus/mcclim,onixie/mcclim,antifuchs/mcclim,onixie/mcclim