Fix 64bit compile error
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java
index 29e64c8..7744ef6 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java
@@ -177,7 +177,7 @@
 	return style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT);
 }
 
-public static GC gtk_new(int handle, GCData data) {
+public static GC gtk_new(int /*long*/ handle, GCData data) {
 	GC gc = new GC();
 	gc.device = data.device;
 	gc.init(null, data, handle);