Hi Matthias, On 2021-08-30, Matthias Köppe <[email protected]> wrote: > ./configure correctly determines that it needs to use CXX='g++ > -std=gnu++11' to work with this old compiler. > Check if you have environment variables CC or CXX set in your global > environment -- they should be unset; otherwise, they will override the > values determined by ./configure. (This is nonstandard behavior of our > build system.)
In a shell: king@klap:~/Sage/git/sage$ echo $CC king@klap:~/Sage/git/sage$ echo $CXX So, it is not set. In a Sage shell: (sage-sh) king@klap:sage$ echo $CC gcc (sage-sh) king@klap:sage$ echo $CXX g++ -std=gnu++11 This is what it should be, right? Best regards, Simon > > On Sunday, August 29, 2021 at 3:04:34 PM UTC-7 Simon King wrote: > >> Hi Matthias, >> >> the two logs are at https://users.fmi.uni-jena.de/~king/logs/ >> >> Best regards, >> Simon >> >> On 2021-08-29, Matthias Köppe <[email protected]> wrote: >> > Singular vendors a part of gfan called gfanlib. Perhaps an installation >> of >> > that is leaking into your build. >> > >> > If you can share your top-level config.log and the full gfan build log, >> we >> > can take a closer look. >> > >> > On Sunday, August 29, 2021 at 11:50:32 AM UTC-7 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/sgj7jp%247b6%241%40ciao.gmane.io.
