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-rw-r--r--src/Fl_Tree_Prefs.cxx4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/Fl_Tree_Prefs.cxx b/src/Fl_Tree_Prefs.cxx
index b52724aef..3fc9c4355 100644
--- a/src/Fl_Tree_Prefs.cxx
+++ b/src/Fl_Tree_Prefs.cxx
@@ -156,6 +156,10 @@ Fl_Tree_Prefs::Fl_Tree_Prefs() {
_itemreselectmode = FL_TREE_SELECTABLE_ONCE;
_itemdrawmode = FL_TREE_ITEM_DRAW_DEFAULT;
#endif
+#if FLTK_ABI_VERSION >= 10303
+ _itemdrawcallback = 0;
+ _itemdrawuserdata = 0;
+#endif
// Let fltk's current 'scheme' affect defaults
if ( Fl::scheme() ) {
if ( strcmp(Fl::scheme(), "gtk+") == 0 ) {