R 486 gc/dbg_mlc.c --> GC_ADD_CALLER not implemented for K&R C R 514 gc/dbg_mlc.c --> GC_ADD_CALLER not implemented for K&R C R 542 gc/dbg_mlc.c --> GC_ADD_CALLER not implemented for K&R C R 1481 src/stdlib.c SCM_SET_C##PRE##R(cell, value); SCM_RETURN(SCM_UNDEFINED);