Fixes STR #3169, comment #3.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10492 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/Enumerations.H

@@ -27,7 +27,7 @@
  * in the current patch release of FLTK. ** Use for static builds only! **
  * For more info on this macro, see: http://fltk.org/cmp.php#FLTK_ABI_VERSION
  */
-//#define FLTK_ABI_VERSION 10303
+//#define FLTK_ABI_VERSION 10304
 
 #  include "Fl_Export.H"
 #  include "fl_types.h"

FL/Fl_Tabs.H

@@ -199,7 +199,12 @@
 	such as using the arrow keys while at the left or right end of the tabs.
 */
 class FL_EXPORT Fl_Tabs : public Fl_Group {
-  Fl_Widget *value_;
+#if FLTK_ABI_VERSION >= 10304
+  // NEW (nothing)
+#else
+  // OLD (maintained for ABI compat)
+  Fl_Widget *value_;	// NOTE: this member no longer used -- STR #3169
+#endif
   Fl_Widget *push_;
   int *tab_pos;		// array of x-offsets of tabs per child + 1
   int *tab_width;	// array of widths of tabs per child + 1

src/Fl_Tabs.cxx

@@ -461,6 +461,12 @@ Fl_Tabs::Fl_Tabs(int X,int Y,int W, int H, const char *l) :
   Fl_Group(X,Y,W,H,l)
 {
   box(FL_THIN_UP_BOX);
+#if FLTK_ABI_VERSION >= 10304
+  // NEW (nothing)
+#else
+  // OLD (init to prevent 'unused' warnings) -- STR #3169
+  value_ = 0;	// NOTE: this member unused -- STR #3169
+#endif
   push_ = 0;
   tab_pos = 0;
   tab_width = 0;