Gabor,
as you can see the x86_64 readline is a very old build 5.2-14 - it is the last version released under GPL-2. Later versions are to my best knowledge license-incompatible since they are released under GPL-3 only and thus do not allow the use in GPL-2 software. The arm64 version currently relies on the system library which is libedit. If it is of interest I can check if readline 5.2 can be built for arm64, but it predates the architecture by quite a few years ;). Cheers, Simon > On Nov 4, 2021, at 7:12 AM, Gábor Csárdi <csardi.ga...@gmail.com> wrote: > > On Wed, Nov 3, 2021 at 7:00 PM Prof Brian Ripley <rip...@stats.ox.ac.uk> > wrote: > [...] >> AFAIK the reason for not distributing readline with binary distributions >> of R is perceived licence restrictions. > > So is the license different for x86_64? Because those builds come with > readline: > ❯ R-4.1 -q -e 'extSoftVersion()[["readline"]]' >> extSoftVersion()[["readline"]] > [1] "5.2" > > Whereas the arm64 build has: > ❯ R-4.1-arm64 -q -e 'extSoftVersion()[["readline"]]' >> extSoftVersion()[["readline"]] > [1] "4.2 (EditLine wrapper)" > > Gabor > > _______________________________________________ > R-SIG-Mac mailing list > R-SIG-Mac@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-mac > _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
