It looks like curl <https://curl.haxx.se/>, which was formerly installed by R installation, must now be installed <https://cran.r-project.org/doc/manuals/R-admin.html#Essential-programs-and-libraries> in order to install R.
One can note that a problem will rarely exists, since most Sage users have curl installed in their system. However, a user having only sage installed (e. g. Sage's virtual machine for Windows) will see it... If we want to keep R a standard package, we have to either - patch R and add curl's installation (heavy : the R core Team threw the towel on it), - add curl to Sage's prerequisites (lighter to us, but still heavy to the users), - or make it a standard package, on which R must depend. The latter solution has my reference(much simpler). What is yours ? -- Emmanuel Charpentier -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
