Please let me know if the attached patch helps.
ok I applied the patch, cleaned out all the fasl's and did a (asdf:oos 'asdf:load-op 'cl-glut-examples) and no complaints. Running any of the examples without (sb-int:with-float-traps-masked (:invalid :divide-by-zero) (....)) still causes the divide-by-zero error.
Thanks again,
James