[Debian-science-sagemath] using Debian Singular in latest Sage beta ?

[Dima Pasechnik]

On Sat, Feb 12, 2022 at 11:12 AM Tobias Hansen <thansen at debian.org> wrote:

> looks like https://bugs.debian.org/1001806
> which should have been fixed in singular 1:4.2.1-p2+ds-6.
>
> Ubuntu jammy should have 1:4.2.1-p3+ds-1 with the fix, do you have that version installed?
So far I tested my Sage patch with 4.1.1 in Debian 11 only.
I'll see whether in Jammy it's fixed (perhaps I forgot to install singular-doc)

>
> Note that SINGULAR_INFO_FILE is a configure variable for singular, i.e. only used at singular build time.
Not really, (lib)Singular is perfectly capable to use it at runtime.

Dima

>
> Best,
> Tobias
>
>
>
> On 2/12/22 10:43, Dima Pasechnik wrote:
> > Hi,
> > I am working on https://trac.sagemath.org/ticket/32789
> > and found that the path to singular.hlp in Debian being problematic:
> >
> > sage: from sage.libs.singular.singular import get_resource
> > sage: get_resource('i')
> > // ** Could not get 'InfoFile'.
> > // ** Either set environment variable 'SINGULAR_INFO_FILE' to 'InfoFile',
> > // ** or make sure that 'InfoFile' is at "/usr/bin/../share/info/singular.hlp"
> >
> > (this is both in Debian 11 with Singular 4.1.1, and in Ubuntu Jammy
> > with Singular 4.2.1)
> >
> > While this can be remedied by setting SINGULAR_INFO_FILE,
> > I wonder how Debian Sage deals with is. In particular, I see that Singular
> > executable is only able to find singular.hlp if SINGULAR_INFO_FILE
> > is set, otherwise one sees
> >
> >> help;
> > // ** Displaying help in browser 'dummy'.
> > // ** Use 'system("--browser", <browser>);' to change browser,
> > // ** where <browser> can be: "dummy", "emacs".
> >    ? No functioning help browser available.
> >
> > as opposed to
> >
> >> help;
> > // ** Displaying help in browser 'builtin'.
> > // ** Use 'system("--browser", <browser>);' to change browser,
> > // ** where <browser> can be: "builtin", "dummy", "emacs".
> > HELP >>Top>>
> >
> > File: singular.hlp,  Node: Top,  Next: Preface,  Prev: (dir),  Up: (dir)
> >
> >                               *SINGULAR*
> > ...
> >
> >
> > This actually looks like a bug in Singular Debian package(s).
> >
> > Thanks
> > Dima
> >
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>
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