Dear, The package ’r-rgraphivz’ does not seems reproducible with Guix 4a2cb3f.
--8<---------------cut here---------------start------------->8--- guix build r-rgraphivz guix build r-rgraphivz --check --no-grafts -K --8<---------------cut here---------------end--------------->8--- Then: --8<---------------cut here---------------start------------->8--- diff -r --no-dereference \ /gnu/store/rxp72c7yh1q1m1wc7wqr5gv4dfnp53d0-r-rgraphviz-2.32.0{,-check} Binary files /gnu/store/rxp72c7yh1q1m1wc7wqr5gv4dfnp53d0-r-rgraphviz-2.32.0/site-library/Rgraphviz/libs/Rgraphviz.so and /gnu/store/rxp72c7yh1q1m1wc7wqr5gv4dfnp53d0-r-rgraphviz-2.32.0-check/site-library/Rgraphviz/libs/Rgraphviz.so differ --8<---------------cut here---------------end--------------->8--- Well, I am not sure to correctly use diffoscope… it reports a lot of differences. All the best, simon