FL, flp, and fl from IRIX have been deprecated for removal in 3.0.
diff --git a/Modules/flmodule.c b/Modules/flmodule.c
index e507c9f..20e74e9 100644
--- a/Modules/flmodule.c
+++ b/Modules/flmodule.c
@@ -2128,6 +2128,11 @@
 PyMODINIT_FUNC
 initfl(void)
 {
+    
+    if (PyErr_WarnPy3k("the fl module has been removed in "
+                       "Python 3.0", 2) < 0)
+        return;
+    
 	Py_InitModule("fl", forms_methods);
 	if (m == NULL)
 		return;