On Fri, Nov 17, 2023 at 5:15 PM Matthias Koeppe <matthiaskoe...@gmail.com> wrote: > > On Friday, November 17, 2023 at 1:14:54 AM UTC-8 Dima Pasechnik wrote: > > > On 17 November 2023 04:35:53 GMT, Matthias Koeppe <matthia...@gmail.com> > wrote: > >Or we just let pillow use a system libjpeg if it finds one. > > With a dummy package we can have doctests, > with #optional tag, checking that this all works. > > > No, that's not true. > > 1) For dummy packages, there is no stamp file in > local/var/lib/sage/installed/, which is where our "# optional" tags have > traditionally come from. For example, pandoc is a dummy package, and you > won't see it there whether it's installed in the system or not. > > 2) "# optional" tags can be established by runtime Feature tests. Again, with > the example of pandoc, see > https://doc.sagemath.org/html/en/reference/spkg/sage/features/pandoc.html
why do we even need runtime Feature tests? This is a leftover from the times one could install Sage packages in a Sage session, something that is long gone, as far as I know. Why can't Features be set up by ./configure ? You'll tell me that (some) distributions don't run ./configure, but this is beside the point. They have ways to know what's installed and what's not installed. > > > -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/3dea5580-39b4-4033-95a3-0c826cc2860fn%40googlegroups.com. -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/CAAWYfq3ZrGJhWLaekUvZD6LrUdCc%2Bgrcp-aKpb3TVg4bb7vtzQ%40mail.gmail.com.
