Bug 60803 Can't build manually if build automatically turned on
I have a PDE plugin project with a long running ant builder attached to it. The ant builder compiles and creates a native library. I tell the ant builder to run only on manual build but I want the Java and plugin stuff to build automatically. If I turn build automatically on, I don't seem to have a way to invoke a manual build. Am I unrealistically mixing both worlds or just plain missing something.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/WorkbenchActionBuilder.java
*/
	private void addSeparatorOrGroupMarker(MenuManager menu, String groupId) {
		String prefId = "useSeparator." + menu.getId() + "." + groupId; 
		boolean addExtraSeparators = IDEWorkbenchPlugin.getDefault()
				.getPreferenceStore().getBoolean(prefId);
		if (addExtraSeparators) {
			menu.add(new Separator(groupId));
		} else {
			menu.add(new GroupMarker(groupId));
		}
	}
    
    /**
     * Disposes any resources and unhooks any listeners that are no longer needed.
     * Called when the window is closed.
     */
    public void dispose() {
        actionBarConfigurer.getStatusLineManager().remove(statusLineItem);
        if (pageListener != null) {
            window.removePageListener(pageListener);
            pageListener = null;
        }
        if (perspectiveListener != null) {
            window.removePerspectiveListener(perspectiveListener);
            perspectiveListener = null;
        }
        if (prefListener != null) {
            ResourcesPlugin.getPlugin().getPluginPreferences()
                    .removePropertyChangeListener(prefListener);
            prefListener = null;