diff -up digikam-1.8.0/libs/threads/dynamicthread.cpp.gcc46 digikam-1.8.0/libs/threads/dynamicthread.cpp
--- digikam-1.8.0/libs/threads/dynamicthread.cpp.gcc46	2011-01-23 13:27:56.000000000 -0600
+++ digikam-1.8.0/libs/threads/dynamicthread.cpp	2011-02-04 10:05:11.969447213 -0600
@@ -257,6 +257,12 @@ bool DynamicThread::DynamicThreadPriv::t
             kDebug() << "Transition to Running: Invalid Inactive state" << q;
             return false;
         }
+	// fix gcc-4.6 failure --  error: control reaches end of non-void function [-Werror=return-type]
+	default:
+        {
+            kDebug() << "libs/threads/dynanamicthread.cpp : Should never reach here: assert?" << q;
+            return false;
+        }
     }
 }