--- libffi-3.0.9.orig/Makefile.in	2009-12-31 13:41:43.000000000 +0100
+++ libffi-3.0.9/Makefile.in	2010-01-08 16:59:03.198809559 +0100
@@ -446,6 +446,7 @@ AM_MAKEFLAGS = \
 	"RUNTESTFLAGS=$(RUNTESTFLAGS)" \
 	"SHELL=$(SHELL)" \
 	"exec_prefix=$(exec_prefix)" \
+	"includesdir=$(prefix)/include" \
 	"infodir=$(infodir)" \
 	"libdir=$(libdir)" \
 	"prefix=$(prefix)" \
