diff -up src/sage/libs/lcalc/lcalc_sage.h.orig src/sage/libs/lcalc/lcalc_sage.h
--- src/sage/libs/lcalc/lcalc_sage.h.orig	2016-08-08 13:40:43.480546146 -0400
+++ src/sage/libs/lcalc/lcalc_sage.h	2016-08-08 13:40:49.561546379 -0400
@@ -1,4 +1,4 @@
-#include "libLfunction/L.h"
+#include "Lfunction/L.h"
 
 int *new_ints(int l)
 {