Follow up to 77e9eff

* Resolves compile warnings from the revert.

src/map/battle.c

@@ -4246,6 +4246,7 @@ static int64 battle_calc_skill_constant_addition(struct Damage wd, struct block_
 {
 	struct map_session_data *sd = BL_CAST(BL_PC, src);
 	struct map_session_data *tsd = BL_CAST(BL_PC, target);
+	struct status_change *sc = status_get_sc(src);
 	struct status_data *sstatus = status_get_status_data(src);
 	struct status_data *tstatus = status_get_status_data(target);
 	int64 atk = 0;

src/map/skill.c

@@ -2516,6 +2516,7 @@ int skill_strip_equip(struct block_list *src,struct block_list *bl, unsigned sho
  * [2] counts how many targets have been processed. counter is added in skill_area_sub if the foreach function flag is: flag&(SD_SPLASH|SD_PREAMBLE)
  */
 static int skill_area_temp[8];
+static int64 skill_area_temp_i64[1];
 
 /**
  Used to knock back players, monsters, traps, etc
@@ -2958,6 +2959,7 @@ void skill_attack_blow(struct block_list *src, struct block_list *dsrc, struct b
  *        flag&2 - Disable re-triggered by double casting
  *        flag&4 - Skip to blow target (because already knocked back before skill_attack somewhere)
  *        flag&8 - Force assume the target is not as is_infinite_defense() on in battle_calc_attack() first.
+ *                 Once it's done, store the damage to skill_area_temp_i64[0] then re-calcuate for real against 'plant'.
  *
  *        flag&0xFFF is passed to the underlying battle_calc_attack for processing.
  *             (usually holds number of targets, or just 1 for simple splash attacks)
@@ -10702,6 +10704,7 @@ int skill_castend_nodamage_id (struct block_list *src, struct block_list *bl, ui
 static int8 skill_castend_id_check(struct block_list *src, struct block_list *target, uint16 skill_id, uint16 skill_lv) {
 	int inf = skill_get_inf(skill_id);
 	int inf2 = skill_get_inf2(skill_id);
+	struct map_session_data *sd = BL_CAST(BL_PC,  src);
 	struct status_change *tsc = status_get_sc(target);
 
 	switch (skill_id) {