storage: skiplist for repo index

This version of skiplist is low efficient because of the map in it

Change-Id: Idecc9016619ca9ab5cbb17b078f71b1cc3d4b03e
refs #1737
diff --git a/wscript b/wscript
index b97c9f6..ccd14d3 100644
--- a/wscript
+++ b/wscript
@@ -29,7 +29,7 @@
 
     conf.env['WITH_TOOLS'] = conf.options.with_tools
 
-    USED_BOOST_LIBS = ['system', 'iostreams', 'filesystem']
+    USED_BOOST_LIBS = ['system', 'iostreams', 'filesystem', 'random']
     if conf.env['WITH_TESTS']:
         USED_BOOST_LIBS += ['unit_test_framework']
     conf.check_boost(lib=USED_BOOST_LIBS, mandatory=True)