Hello Patrick,

> ...
> +        (modify-phases %standard-phases
> +          (add-before 'configure 'pre-configure
> +               (lambda* (#:key outputs #:allow-other-keys)
> +                 (let ((out (assoc-ref outputs "out")))
> +                   (substitute* (find-files "." "^Makefile.in$")
> +                     (("guilemoduledir =.*guile/site" all)
> +                     (string-append all "/2.0")))
> +                  #t))))))
> ...

Just curious: why do you (string-append all "/2.0")? Is this a guix guideline maybe?

	IMO, G-wrap, Guile-Cairo and Guile-Gnome should all be installed in the
	directory returned by (%global-site-dir)

Cheers,
David