--- GDALmake.opt.in.orig	2012-10-09 00:58:28.000000000 +0000
+++ GDALmake.opt.in
@@ -67,7 +67,7 @@ INST_DOCS	=	@exec_prefix@/doc
 INST_MAN	=	@mandir@
 INST_HTML	=	$(HOME)/www/gdal
 
-CPPFLAGS	= @CPPFLAGS@ -I$(GDAL_ROOT)/port @EXTRA_INCLUDES@
+CPPFLAGS	= @CPPFLAGS@ -I$(GDAL_ROOT)/port -I$(GDAL_ROOT)/gcore @EXTRA_INCLUDES@
 CFLAGS		= @CFLAGS@ @C_WFLAGS@ $(USER_DEFS)
 CXXFLAGS	= @CXXFLAGS@ @CXX_WFLAGS@ $(USER_DEFS)
 LDFLAGS     = @LDFLAGS@