modified:   include/common.h
	modified:   include/eval.h
	modified:   include/structs.h
	modified:   src/baselib.c
	modified:   src/baselib/control.c
	modified:   src/baselib/defs.c
	modified:   src/baselib/manip.c
	modified:   src/baselib/num_ops.c
	modified:   src/baselib/preds.c
	modified:   src/eval.c
	modified:   src/main.c
	modified:   src/parser.c
	modified:   src/symtab.c
	modified:   src/test4.rkt