Index: /ImageMagick/trunk/MagickCore/thread-private.h
===================================================================
--- /ImageMagick/trunk/MagickCore/thread-private.h	(revision 7806)
+++ /ImageMagick/trunk/MagickCore/thread-private.h	(revision 7807)
@@ -37,6 +37,6 @@
     num_threads(GetMagickResourceLimit(ThreadResource))
 #define IsConcurrentTres(columns,rows,expression,threshold) \
-  if (((((columns) > threshold) || ((rows) > threshold))) && \
-      ((MagickSizeType) (columns*rows) > (threshold*threshold)) && (expression)) \
+  if (((((columns) > threshold) || ((rows) > threshold))) && ((MagickSizeType) \
+      (columns*rows) > (threshold*threshold)) && (expression)) \
     num_threads(GetMagickResourceLimit(ThreadResource))