--- ./src/Makefile.am.orig	2014-06-28 10:04:21.000000000 -0400
+++ ./src/Makefile.am	2014-06-28 10:04:35.000000000 -0400
@@ -1,4 +1,4 @@
-INCLUDES	=  -I$(top_srcdir)/include # @PGFCODEC_CFLAGS@
+AM_CPPFLAGS	=  -I$(top_srcdir)/include # @PGFCODEC_CFLAGS@
 
 lib_LTLIBRARIES = libpgf.la
 libpgf_la_LDFLAGS = -version-info @INTERFACE_VERSION@