diff --git a/macosx/PiecesView.m b/macosx/PiecesView.m
index 286be08c6..f1c397af1 100644
--- a/macosx/PiecesView.m
+++ b/macosx/PiecesView.m
@@ -201,6 +201,7 @@
                 rect.origin = NSMakePoint(j * (fWidth + BETWEEN) + BETWEEN + fExtraBorder,
                                         [image size].width - (i + 1) * (fWidth + BETWEEN) - fExtraBorder);
                 
+                #warning use NSRectFillListWithColors
                 [pieceColor set];
                 NSRectFill(rect);
             }
diff --git a/macosx/TorrentTableView.m b/macosx/TorrentTableView.m
index c44097a5e..a3fcf208d 100644
--- a/macosx/TorrentTableView.m
+++ b/macosx/TorrentTableView.m
@@ -682,7 +682,7 @@
     
     const CGFloat totalRowHeight = [self rowHeight] + [self intercellSpacing].height;
     
-    NSRect * gridRects = (NSRect *)alloca(sizeof(NSRect) * (ceil(visibleRect.size.height / totalRowHeight) / 2));
+    NSRect gridRects[(NSInteger)(ceil(visibleRect.size.height / totalRowHeight) / 2)];
     NSInteger rectNum = 0;
     
     if (rows.length > 0)
@@ -729,6 +729,7 @@
     visibleRect.size.height = totalRowHeight;
     if (start)
         visibleRect.origin.y += totalRowHeight;
+    
     for (NSInteger i = start ? 1 : 0; i < numberBlankRows; i += 2)
     {
         gridRects[rectNum++] = visibleRect;
diff --git a/macosx/TrackerTableView.m b/macosx/TrackerTableView.m
index 9c625adeb..704ae9b85 100644
--- a/macosx/TrackerTableView.m
+++ b/macosx/TrackerTableView.m
@@ -46,7 +46,7 @@
     
     const CGFloat totalRowHeight = [self rowHeight] + [self intercellSpacing].height;
     
-    NSRect * gridRects = (NSRect *)alloca(sizeof(NSRect) * (ceil(visibleRect.size.height / totalRowHeight) / 2));
+    NSRect gridRects[(NSInteger)(ceil(visibleRect.size.height / totalRowHeight) / 2)];
     NSInteger rectNum = 0;
     
     if (rows.length > 0)
@@ -93,6 +93,7 @@
     visibleRect.size.height = totalRowHeight;
     if (start)
         visibleRect.origin.y += totalRowHeight;
+    
     for (NSInteger i = start ? 1 : 0; i < numberBlankRows; i += 2)
     {
         gridRects[rectNum++] = visibleRect;