static void _equip_undead(int x, int y, int corps, int monster, int monnum)

static void _equip_undead(const coord_def &a, int corps, int monster,
                          int monnum)

    int objl      = igrd[x][y];

    int objl      = igrd(a);

        _equip_undead(a.x, a.y, corps, monster, monnum);

        _equip_undead(a, corps, monster, monnum);