```common lisp
(cl:in-package #:sicl-extrinsic-environment)

(defun fill-environment (environment)
  (import-from-host-common-lisp environment)
  (import-from-sicl-global-environment environment)
  (import-loop-support environment)
  (define-defmacro environment)
  (define-default-setf-expander environment))
```

Call function that defines backquote macros.
user
```common lisp
(cl:in-package #:sicl-extrinsic-environment)

(defun fill-environment (environment)
  (import-from-host-common-lisp environment)
  (import-from-sicl-global-environment environment)
  (import-loop-support environment)
  (define-backquote-macros environment)
  (define-defmacro environment)
  (define-default-setf-expander environment))
```
assistant