--- a/src/Fl.cxx
+++ b/src/Fl.cxx
@@ -928,7 +928,7 @@
 
 ////////////////////////////////////////////////////////////////
 
-Fl_Widget* fl_oldfocus; // kludge for Fl_Group...
+FL_EXPORT Fl_Widget* fl_oldfocus; // kludge for Fl_Group...
 
 /**
     Sets the widget that will receive FL_KEYBOARD events.
--- a/FL/x.H
+++ b/FL/x.H
@@ -114,7 +114,7 @@ FL_EXPORT Fl_Region XRectangleRegion(int x, int y, int w, int h); // in fl_rect.
 // With Xlib / X11 fonts, fl_xfont will return the current selected font.
 // With XFT / X11 fonts, fl_xfont will attempt to return the bitmap "core" font most
 // similar to (usually the same as) the current XFT font.
-class Fl_XFont_On_Demand
+class FL_EXPORT Fl_XFont_On_Demand
 {
 public:
   Fl_XFont_On_Demand(XFontStruct* p = NULL) : ptr(p) { }