Fix build with clang. This resolves issue #7.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

krusader/DiskUsage/radialMap/map.cpp

@@ -326,7 +326,7 @@ RadialMap::Map::paint( unsigned int scaleFactor )
             //draw arrow head to indicate undisplayed files/directories
             TQPointArray pts( 3 );
             TQPoint pos, cpos = rect.center();
-            int a[3] = { (*it)->start(), (*it)->length(), 0 };
+            uint a[3] = { (*it)->start(), (*it)->length(), 0 };
 
             a[2] = a[0] + (a[1] / 2); //assign to halfway between
             if( a[1] > a_max )