$NetBSD: patch-ac,v 1.2 2010/01/16 16:28:58 asau Exp $

Install header files in backwards compatible way.

--- include/Makefile.in.orig	2009-12-31 15:41:01.000000000 +0300
+++ include/Makefile.in	2010-01-12 12:43:57.000000000 +0300
@@ -203,7 +203,7 @@
 AUTOMAKE_OPTIONS = foreign
 DISTCLEANFILES = ffitarget.h
 EXTRA_DIST = ffi.h.in ffi_common.h
-includesdir = $(libdir)/@PACKAGE_NAME@-@PACKAGE_VERSION@/include
+includesdir = $(includedir)
 nodist_includes_HEADERS = ffi.h ffitarget.h
 all: all-am