--- Makefile.PL.orig	2008-01-22 03:17:41.000000000 +0800
+++ Makefile.PL	2011-01-16 01:12:53.000000000 +0800
@@ -45,7 +45,7 @@
     clean        => {
         FILES => "@{ clean_files() }",
     },
-    INC => join " ", $extra_inc, ModPerl::MM::get_def_opt('INC'),
+    INC => join " ", "-I%%LOCALBASE%%/%%APACHEINCLUDEDIR%%/modules/perl/", $extra_inc, ModPerl::MM::get_def_opt('INC'),
 );
 
 sub clean_files {
--- Dummy/Makefile.PL.orig	2008-01-22 03:17:31.000000000 +0800
+++ Dummy/Makefile.PL	2011-01-16 01:13:41.000000000 +0800
@@ -29,6 +29,6 @@
 ModPerl::MM::WriteMakefile(
     NAME	 => 'Apache::DummyScoreboard',
     VERSION_FROM => 'DummyScoreboard.pm',
-    INC => join " ", $extra_inc, ModPerl::MM::get_def_opt('INC'),
+    INC => join " ", "-I%%LOCALBASE%%/%%APACHEINCLUDEDIR%%/modules/perl/", $extra_inc, ModPerl::MM::get_def_opt('INC'),
 
 );
