Use `FL_OVERRIDE` for all overridden virtual methods (#611)

FL_OVERRIDE is defined as `override` for C++11 and higher
FL_OVERRIDE is defined as `override` for VisualC 2015 and newer
Don't interfere with Fl_Widget::override()

1 files changed, 1 insertions, 1 deletions

diff --git a/test/unittests.h b/test/unittests.h
index 475065d7c..8d04f15ca 100644
--- a/test/unittests.h
+++ b/test/unittests.h
@@ -80,7 +80,7 @@ class Ut_Main_Window : public Fl_Double_Window {
 public:
   Ut_Main_Window(int w, int h, const char *l=0L);
   void draw_alignment_indicators();
-  void draw();
+  void draw() FL_OVERRIDE;
   void test_alignment(int v);
 private:
   int draw_alignment_test_;