diff -Nurd -x'*~' Gtk2-1.220.orig/Makefile.PL Gtk2-1.220/Makefile.PL
--- Gtk2-1.220.orig/Makefile.PL	2009-03-17 14:44:18.000000000 -0400
+++ Gtk2-1.221/Makefile.PL	2021-11-26 05:13:48.000000000 -0600
@@ -249,7 +249,7 @@
 # Glib added -I. for us, but we'll need to add -I./build so we can get to
 # the autogenerated files.  we do this kindof as a public service to client
 # modules, as these will carry through via the depends mechanism.
-$gtk2->set_inc ($pkgcfg_gtk{cflags} . ' -I./build ');
+$gtk2->set_inc ( ' -I./build ' . $pkgcfg_gtk{cflags});
 $gtk2->set_libs ($pkgcfg_gtk{libs});
 $gtk2->add_pm (%pm_files);
 $gtk2->add_xs (@xs_files);
@@ -266,7 +266,7 @@
 
 # exports list needed for win32, unused on others
 our @exports;
-require 'Gtk2.exports';
+require './Gtk2.exports';
 
 WriteMakefile(
     NAME          => 'Gtk2',