--- a/wscript	Wed Jul 11 20:36:14 2012 +0900
+++ b/wscript	Thu Jul 12 14:01:05 2012 +0900
@@ -78,6 +78,8 @@
     librt = search_file ([
             '/lib64/librt.so.1',
             '/lib/librt.so.1',
+            '/lib/x86_64-linux-gnu/librt.so.0',
+            '/lib/i386-linux-gnu/librt.so.1',
             ])
     if librt is None:
         conf.fatal('not found')