--- Makefile.orig	2015-12-14 18:44:42 UTC
+++ Makefile
@@ -5,7 +5,8 @@ VERSION = 1.16
 
 CXXFILES = main.C Frame.C Menu.C FrameWindow.C Desktop.C Hotkeys.C
 
-LIBS = -lfltk
+CPPFLAGS += -DFL_LIBRARY $(shell $(LOCALBASE)/bin/fltk-config --cxxflags)
+LIBS += $(shell $(LOCALBASE)/bin/fltk-config --ldflags)
 
 MANPAGE = 1