The distribution of Iterate
1.2 does not load on CMUCL. Only minor changes were required.
The package name is changed to ITER. ITERATE is no longer
exported, use ITER. There is potential of conflict between
EXT:COLLECT and ITER:COLLECT, in CL-USER you can say
(shadowing-import 'iter:collect) before
(use-package "ITER"), and likewise in package
definitions if you use both EXT and ITER.
The changed code is available here.