$NetBSD: patch-Makefile.in,v 1.3 2014/01/10 09:40:44 pho Exp $

As we don't have a separate directory for builddir, AM_CPPFLAGS gets
resolved to "-I. -Ilib -I. -I./lib". This causes a trouble with some C
preprocessors because headers like lib/unistd.in.h use "#include_next"
directive and they all result in an infinite recursion. I think the
semantics of the combination of duplicate -I and "#include_next" is
not defined but I'm not sure.

--- Makefile.in.orig	2013-12-05 13:58:54.000000000 +0000
+++ Makefile.in
@@ -2191,7 +2191,7 @@ AM_YFLAGS = -d -v -Werror -Wall -Wno-yac
 # Initialization before completion by local.mk's.
 AM_CFLAGS = $(WARN_CFLAGS)
 # Find builddir/src/scan-code.c etc.
-AM_CPPFLAGS = -I. -Ilib -I$(top_srcdir) -I$(top_srcdir)/lib
+AM_CPPFLAGS = -I$(top_srcdir) -I$(top_srcdir)/lib
 
 # The BUILT_SOURCES created by this Makefile snippet are not used via #include
 # statements but through direct file reference. Therefore this snippet must be