Hi We should upgrade. I earlier tried building 0.2.5 but failed, see def. below. (define-public artanis   (package     (name "artanis")     ;; The 0.2.5 tarball does not build. See upstream bugreport at     ;; https://lists.gnu.org/archive/html/bug-artanis/2018-11/msg00000.html     (version "0.2.5.af624e50")     (source (origin               (method git-fetch)               (uri (git-reference                     (url "https://git.savannah.gnu.org/git/artanis.git")                     (commit "af624e508e9997bd2e20c8c7063d986694f11209")))               (file-name (string-append name "-" version "-checkout"))               (sha256                (base32 "0y1rx09jljdx6g6nq6y635f8svm8kazib7n4bgivi3yiy2c5v7ck")) -- Cheers Swedebugia