The compiler complains about dl* function missing, this commit adds the
necessary flag to pass to gcc to make it build correctly

(cherry picked from commit 213623e291)

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* geogebra 6 : init at 6-0-598-0

since geogebra was ported from java to electron, this is a repacke;
wont want to delete geogebra 5, no darwin package for 6

ran nixpkgs-fmt over the file to cleanly reformat the spacings

Update pkgs/top-level/all-packages.nix

remove a trailing space

Co-authored-by: Tom Smeets <Tom.TSmeets@Gmail.com>

Update pkgs/applications/science/math/geogebra/geogebra_6.nix

Co-authored-by: Tom Smeets <Tom.TSmeets@Gmail.com>

Applied a sugestion for the formating of the lines

fixed a mistake, where the wrong name attribute was used

removed an unnecassary chmod statement

added a downlod link to archive.org

moved geogebra_6.nix to geogebra6.nix

removed unnecesary build inputs statement

* renamed to geogebra6

For reasons I have renamed my GitHub account and would like to include
this name change here.

Signed-off-by: Elliott Villars <elliottvillars@gmail.com>

dependencies:

* eliot: init at 1.12.0