https://www.hostedredmine.com/issues/875804 moved set_unit_activity_road() and set_unit_activity_base() to savecompat.c. Actually they are needed only by savegame2.c; not by savegame3.c nor savecompat conversion. Thus they should be moved to savegame2.c. That will also ensure that they get removed when savegame2.c support is eventually dropped.
https://www.hostedredmine.com/issues/875804 moved set_unit_activity_road() and set_unit_activity_base() to savecompat.c. Actually they are needed only by savegame2.c; not by savegame3.c nor savecompat conversion. Thus they should be moved to savegame2.c. That will also ensure that they get removed when savegame2.c support is eventually dropped.