Getting PolymakeInterface to work

[olexandr-konovalov]

polymakeinterface package is not loadable now:

gap> Filtered(RecNames(GAPInfo.PackagesInfo),n->LoadPackage(n)=fail);
[ "polymakeinterface", "itc", "linboxing", "xgap" ]
gap> 

[olexandr-konovalov]

What do we need for that @sebasguts ? Having it runnable would be indeed a useful addition to the Docker container.

[olexandr-konovalov]

First off, we install polymake in this container.

This is supposedly enough to make polymaking package working, and @fingolfin points that https://github.com/gap-packages/polymaking now has runnable tests in https://travis-ci.org/gap-packages/polymaking. However, I still see errors when I run tests from polymaking 0.8.2, see e.g. https://travis-ci.org/gap-infra/gap-docker-pkg-tests-master-staging/jobs/497837386. Could that be because polymaking tests on travis use a fresh install of polymake, and we here use already installed one, made for https://hub.docker.com/r/gapsystem/gap-docker-base/ 5 months ago?

Second, I have added to https://github.com/gap-system/gap-docker-master packages libpolymake-dev and libxml2, so now PolymakeInterface compiles there. However, the package now segfaults while loading, see e.g. https://travis-ci.org/gap-infra/gap-docker-pkg-tests-master-staging/jobs/497851996 with

terminate called after throwing an instance of 'std::runtime_error'
  what():  polymake::Main - weird callable library path /usr/lib/libpolymake.so.3.2

so I will now revert those commits to undo these changes.

[mohamed-barakat]

@sebasguts Shall we close this issue? This also means that we should delete PolymakeInterface from homalg_project. Any thoughts?

[olexandr-konovalov]

@mohamed-barakat what do you mean by closing this issue - giving up on loading PolymakeInterface in the GAP Docker container? But why? I don't know what the problem was, and it may be that it healed by itself over a year - we may try again with most recent versions to check that first...

[zickgraf]

I think PolymakeInterface and Convex are supposed to be replaced by NConvex and CddInterface. That's why probably PolymakeInterface will not be fixed for recent versions of polymake (I think it compiles with Polymake 3.4 but does not run) and will be dropped sooner or later.