On Wed, Dec 31, 2025 at 4:48 PM Grégory Vanuxem <[email protected]> wrote: > > Not related. GAP has a lot of work to be done. Particularly in the Julia GC > world. It's a pity, they are not usable for example using libjulia. > Inconsistent things I think. Oscar for example is not usable because of GAP > through libjulia.
Oscar doesn't really rely on GAP as a backend, as far as I know. Thus saying "Oscar is unusable because of GAP ..." doesn't make sent to me. Anyway, unless you run Oscar on a platform on which it's not really tested (Windows, of Oscar from GAP), it's hard to understand what you mean. Oscar works just fine on Linux and macOS, is well-supported and being worked on a lot. (while GAP is mostly in maintainance mode as far as its core functionalities are concerned) Few times I needed to run Oscar, it all went very well. Dima > > Bad usage > > Le mer. 31 déc. 2025, 22:34, Marc Culler <[email protected]> a écrit : >> >> I am building an AppImage for Sage 10.8. I have successfully built Sage >> 10.8 on my manylinux docker image and I can run it on my Ubuntu 24.04 >> system. But I have run into issues with libgap, and possibly other parts of >> sage. >> >> First, I cannot build the documentation because segfaults occur during the >> doc build. Actually there are several, many of which occur during >> sphinxplot. But I was able to track down at least one segfault in >> gap/element.cpython-313-x86_64-linux-gnu.so. Based on disassembly, it seems >> to happen in make_gap_list. >> >> I then tried running some example code from libgap, and I get weird errors. >> For example: >> libgap(vector((1/3, 0.8, 3))) >> produces: >> GAPError: Error, Variable: <<unknown>> must have an assigned value >> >> On my 10.7 AppImage, which was built on the same docker image, the result of >> that command is, as expected: >> [ 0.333333, 0.8, 3. ] >> >> For another example, the command: >> libgap.AlternatingGroup(4) >> produces >> GAPError: Error, no method found! Error, no 1st choice method found for >> `AlternatingGroupCons' on 2 arguments >> >> Again, that works fine on the 10.7 Appimage, producing the expected result: >> Alt( [ 1 .. 4 ] ) >> >> And, to add one more, the command: >> sage: libgap.eval('5/3 + 7*E(3)').sage() >> produces: >> GAPError: Error, CoeffsCyc: function is not yet defined >> while the following command seems to work: >> libgap.eval('5/3 + 7*E(3)') >> 16/3*E(3)-5/3*E(3)^2 >> >> Does anyone know anything which might give a hint about what is going on >> here? >> >> - Marc >> >> -- >> 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 [email protected]. >> To view this discussion visit >> https://groups.google.com/d/msgid/sage-devel/0de5b35b-2ac5-4987-97d5-b8cdfb2e301bn%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 [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/sage-devel/CAHnU2dbMmFAUZuHyXW1xEOKxbewEDtN3Uv53%3DjtrMyOif_UQsg%40mail.gmail.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 [email protected]. To view this discussion visit https://groups.google.com/d/msgid/sage-devel/CAAWYfq3-tLSg8ENOBPGNqhRcjknv6SJdvOwn2O_P4kgqmDgmeQ%40mail.gmail.com.
