[GAP Forum] Using package genss on Debian

[Asst. Prof. Dmitrii (Dima) Pasechnik]

On 3 January 2012 13:57, Nicolas FRANCOIS <nicolas.francois at free.fr> wrote:
> Le Tue, 3 Jan 2012 13:37:57 +0800,
> "Asst. Prof. Dmitrii (Dima) Pasechnik" <dima at ntu.edu.sg> a écrit :
>
>> Hi Nicolas,
>>
>> is /usr/share/gap/pkg/ actually the right directory?
>> (i.e., do you see there any other pkg's that you know work?)
>> Does package orb load OK?
>> Is is a dependency of genss, so one needs to sort it out first.
>
> gap> LoadPackage("orb");
> fail
>
> So no, it doesn't seem to be the right directory...
>
> How can I ask gap where it searches for its packages ?

one way is to look at the shell script that starts GAP.
The packages are loaded from the pkg/ subdirectory at
GAP_DIR.
i.e. you can look at the output of
cat `which gap` | grep GAP_DIR

>From within GAP it seems to be the variable GAP_ROOT_PATHS.
I.e. you can do

gap> GAP_ROOT_PATHS;
[ "/usr/local/src/gap/gap4r4/" ]

HTH,
Dmitrii

>
> \bye
>
> --
>
> Nicolas FRANCOIS                      |  /\
> http://nicolas.francois.free.fr       | |__|
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