--- setup.py~	2007-04-07 13:58:49.000000000 -0300
+++ setup.py	2007-04-07 18:48:31.000000000 -0300
@@ -185,13 +189,18 @@
         build_ext.build_extensions(self)
 
     def build_extension(self, ext):
-
         try:
+            self.include_dirs = []
+            root = os.environ.get ('CROSS_ROOT','')
+            ext.include_dirs = [d for d in ext.include_dirs
+                                 if d.startswith (root)]
+            self.compiler.include_dirs = [d for d in self.compiler.include_dirs
+                                          if d.startswith (root)]
             build_ext.build_extension(self, ext)
         except (CCompilerError, DistutilsError), why:
             self.announce('WARNING: building of extension "%s" failed: %s' %
                           (ext.name, sys.exc_info()[1]))
-            return
+            return
         # Workaround for Mac OS X: The Carbon-based modules cannot be
         # reliably imported into a command-line Python
         if 'Carbon' in ext.extra_link_args: