diff --git a/Audio/ThirdParty/r8bstate.h b/Audio/ThirdParty/r8bstate.h
index 2a3bba8d8..9744b255e 100644
--- a/Audio/ThirdParty/r8bstate.h
+++ b/Audio/ThirdParty/r8bstate.h
@@ -75,7 +75,7 @@ struct r8bstate {
 			size_t blockCount = inCount;
 			if(blockCount > bufferCapacity)
 				blockCount = bufferCapacity;
-			int outputDone;
+			int outputDone = 0;
 			for(i = 0; i < channelCount; ++i) {
 				double *outputPointer;
 				vDSP_vspdp(input + i, channelCount, &InBuf[0], 1, blockCount);
diff --git a/Playlist/PlaylistController.m b/Playlist/PlaylistController.m
index 83c22c7de..54f1a222a 100644
--- a/Playlist/PlaylistController.m
+++ b/Playlist/PlaylistController.m
@@ -385,8 +385,8 @@ static inline void dispatch_sync_reentrant(dispatch_queue_t queue, dispatch_bloc
 
 	NSUInteger index = [cellIdentifiers indexOfObject:[tableColumn identifier]];
 
-	NSSortDescriptor *sortDescriptor = [tableColumn sortDescriptorPrototype];
-	NSArray *sortDescriptors = sortDescriptor ? @[sortDescriptor] : @[];
+	NSSortDescriptor *sortDescriptor;/* = [tableColumn sortDescriptorPrototype];*/
+	NSArray *sortDescriptors;/* = sortDescriptor ? @[sortDescriptor] : @[];*/
 
 	BOOL ascending;
 
diff --git a/ThirdParty/json/json.c b/ThirdParty/json/json.c
index 6012bad7d..fe63de9ca 100644
--- a/ThirdParty/json/json.c
+++ b/ThirdParty/json/json.c
@@ -650,7 +650,7 @@ json_value * json_parse_ex (json_settings * settings,
                               {
                                  if ( (++ state.ptr) == end)
                                  {
-                                    b = 0;
+                                    /*b = 0;*/
                                     break;
                                  }
 
diff --git a/Utils/SQLiteStore.m b/Utils/SQLiteStore.m
index b985dedd8..6a52ac8f3 100644
--- a/Utils/SQLiteStore.m
+++ b/Utils/SQLiteStore.m
@@ -577,7 +577,7 @@ static SQLiteStore *g_sharedStore = NULL;
 			dbExists = YES;
 
 		if(sqlite3_open([g_databasePath UTF8String], &g_database) == SQLITE_OK) {
-			char *error;
+			char *error = "";
 
 			if(!dbExists) {
 				NSArray *schemas = createSchema();
@@ -799,7 +799,7 @@ static SQLiteStore *g_sharedStore = NULL;
 		return string;
 	}
 
-	int64_t returnId, refcount;
+	int64_t returnId; /*, refcount;*/
 
 	int rc = sqlite3_step(st);
 
@@ -809,7 +809,7 @@ static SQLiteStore *g_sharedStore = NULL;
 
 	if(rc == SQLITE_ROW) {
 		returnId = sqlite3_column_int64(st, select_string_out_string_id);
-		refcount = sqlite3_column_int64(st, select_string_out_reference_count);
+		/*refcount = sqlite3_column_int64(st, select_string_out_reference_count);*/
 	}
 
 	sqlite3_reset(st);
@@ -825,7 +825,7 @@ static SQLiteStore *g_sharedStore = NULL;
 		}
 
 		returnId = sqlite3_last_insert_rowid(g_database);
-		refcount = 1;
+		/*refcount = 1;*/
 
 		[stringTable setObject:string forKey:[[NSNumber numberWithInteger:returnId] stringValue]];
 	} else {
@@ -961,7 +961,7 @@ static SQLiteStore *g_sharedStore = NULL;
 		return art;
 	}
 
-	int64_t returnId, refcount;
+	int64_t returnId; /*, refcount;*/
 
 	int rc = sqlite3_step(st);
 
@@ -971,7 +971,7 @@ static SQLiteStore *g_sharedStore = NULL;
 
 	if(rc == SQLITE_ROW) {
 		returnId = sqlite3_column_int64(st, select_art_out_art_id);
-		refcount = sqlite3_column_int64(st, select_art_out_reference_count);
+		/*refcount = sqlite3_column_int64(st, select_art_out_reference_count);*/
 	}
 
 	sqlite3_reset(st);
@@ -988,7 +988,7 @@ static SQLiteStore *g_sharedStore = NULL;
 		}
 
 		returnId = sqlite3_last_insert_rowid(g_database);
-		refcount = 1;
+		/*refcount = 1;*/
 
 		[artTable setObject:art forKey:[[NSNumber numberWithInteger:returnId] stringValue]];
 	} else {
@@ -1103,7 +1103,7 @@ static SQLiteStore *g_sharedStore = NULL;
 	NSString *urlString = [url absoluteString];
 
 	int64_t urlId = -1;
-	urlString = [self addString:urlString returnId:&urlId];
+	[self addString:urlString returnId:&urlId];
 
 	sqlite3_stmt *st = stmt[stmt_select_track];
 
@@ -1113,7 +1113,7 @@ static SQLiteStore *g_sharedStore = NULL;
 		return -1;
 	}
 
-	int64_t ret, refcount;
+	int64_t ret/*, refcount*/;
 
 	int rc = sqlite3_step(st);
 
@@ -1124,7 +1124,7 @@ static SQLiteStore *g_sharedStore = NULL;
 
 	if(rc == SQLITE_ROW) {
 		ret = sqlite3_column_int64(st, select_track_out_track_id);
-		refcount = sqlite3_column_int64(st, select_track_out_reference_count);
+		/*refcount = sqlite3_column_int64(st, select_track_out_reference_count);*/
 	}
 
 	sqlite3_reset(stmt[stmt_select_string]);
@@ -1235,7 +1235,7 @@ static SQLiteStore *g_sharedStore = NULL;
 		}
 
 		ret = sqlite3_last_insert_rowid(g_database);
-		refcount = 1;
+		/*refcount = 1;*/
 	} else {
 		[self removeString:urlId]; // should only be bumped once per instance of track
 
@@ -1259,7 +1259,7 @@ static SQLiteStore *g_sharedStore = NULL;
 	NSString *urlString = [url absoluteString];
 
 	int64_t urlId = -1;
-	urlString = [self addString:urlString returnId:&urlId];
+	[self addString:urlString returnId:&urlId];
 
 	sqlite3_stmt *st = stmt[stmt_select_track];
 
@@ -1269,7 +1269,7 @@ static SQLiteStore *g_sharedStore = NULL;
 		return;
 	}
 
-	int64_t trackId, refcount;
+	int64_t trackId; /*, refcount; */
 
 	int rc = sqlite3_step(st);
 
@@ -1282,7 +1282,7 @@ static SQLiteStore *g_sharedStore = NULL;
 
 	if(rc == SQLITE_ROW) {
 		trackId = sqlite3_column_int64(st, select_track_out_track_id);
-		refcount = sqlite3_column_int64(st, select_track_out_reference_count);
+		/*refcount = sqlite3_column_int64(st, select_track_out_reference_count);*/
 	}
 
 	sqlite3_reset(stmt[stmt_select_string]);
diff --git a/Visualization/ThirdParty/deadbeef/analyzer.c b/Visualization/ThirdParty/deadbeef/analyzer.c
index 3e153a283..f98c0d5de 100644
--- a/Visualization/ThirdParty/deadbeef/analyzer.c
+++ b/Visualization/ThirdParty/deadbeef/analyzer.c
@@ -336,7 +336,7 @@ _generate_octave_note_bars(ddb_analyzer_t *analyzer) {
 	}
 
 	int minBand = -1;
-	int maxBand = -1;
+	/*int maxBand = -1;*/
 
 	ddb_analyzer_bar_t *prev_bar = NULL;
 	for(int i = 0; i < OCTAVES * STEPS; i += analyzer->octave_bars_step) {
@@ -350,7 +350,7 @@ _generate_octave_note_bars(ddb_analyzer_t *analyzer) {
 			minBand = i;
 		}
 
-		maxBand = i;
+		/*maxBand = i;*/
 
 		ddb_analyzer_bar_t *bar = analyzer->bars + analyzer->bar_count;