I'd start by un-installing system-wide gfan (could it be that you have more system-wide copies of it, e.g. in /usr/local/ ?) and try building then.
On Sunday, August 29, 2021 at 7:50:32 PM UTC+1 Simon King wrote: > Hi Matthias, > > On 2021-08-29, Matthias Köppe <[email protected]> wrote: > > On Sunday, August 29, 2021 at 5:44:33 AM UTC-7 Dima Pasechnik wrote: > > > >> is gfan partially taken from the system? > >> > >> probably. Ubuntu 16.04 has gfan version 0.5, but Sage needs 0.6.2. > >> A system-wide install of old gfan might get in the way. > > > > No, that alone cannot explain it -- we test this configuration. > > ubuntu-xenial-standard installs the system gfan, then rejects it, then > > correctly builds gfan. > > What could explain it? Is there a typical application that I might have > installed and depends on gfan? I mean, it is for Groebner fans. So, what > *non-mathematical* software would use it? I don't think that I installed > a mathematical software after the last successful build of Sage. > > Should I try to uninstall gfan, re-install it, and try again? And, > if that fails, uninstall and NOT re-install, but build Sage and hope > that it provides a working gfan? > > Best regards, > Simon > > -- You received this message because you are subscribed to the Google Groups "sage-release" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-release/651d195a-bc5c-4f4a-bee9-a669ca5080c5n%40googlegroups.com.
