some fixes to compile on latest mingw (Ters)

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6742 8aca7d54-2c30-db11-9de9-000461428c89
FIX: line list display

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6743 8aca7d54-2c30-db11-9de9-000461428c89