Frank Pursel schreef op vr 18-03-2022 om 19:16 [+0000]: > +     (origin > +       (method url-fetch) > +       (uri (string-append "mirror://apache/xalan/xalan-j/source/xalan-j_" > +                           (string-replace-substring > +                            version "." "_") > +                           "-src.tar.gz")) > +       (sha256 > +        (base32 "166vg9i11qzi0vbv09abfb50q8caq8wr6zrwg0cwqws9k394l62w")) > +       (modules '((guix build utils))) > +       (snippet '(begin > +                   ;; Removing bundled jars > +                   (for-each > +                    (lambda (f) > +                      (delete-file f)) > +                    (find-files "." "\\.(jar|tar\\.gz)$")))))) Can be simplified to: (snippet '(for-each delete-file (delete-files "." "\\.(jar|tar\\.gz)$"))) Also, xalan-j_2_7_2/samples/AppletXMLtoHTML/rabbitwhorn.jpg is an (uncoloured) picture of a rabbit from Alice in Wonderland (not asl2.0). According to , the copyright has been expired. As such, perhaps the 'license' field needs to be changed to (license (list license:asl2.0 ; almost everything ;; samples/AppletXMLtoHTML/rabbitwhorn.jpg, according to ;; license:public-domain)) Aside from that, LGTM. I've been reading the source code, not seeing anything ‘suspicous’ (malware etc.) so far (I'm currently at xalan-j_2_7_2/src/org/apache/xalan/templates/FuncKey.java, 25%). Greetings, Maxime.