Index: boost/chrono/detail/inlined/posix/process_cpu_clocks.hpp
===================================================================
--- boost/chrono/detail/inlined/posix/process_cpu_clocks.hpp.orig	2011-11-26 01:49:13.000000000 +0100
+++ boost/chrono/detail/inlined/posix/process_cpu_clocks.hpp	2012-03-13 19:34:38.197168044 +0100
@@ -213,6 +213,7 @@ process_system_cpu_clock::time_point pro
         else
         {
           BOOST_ASSERT(0 && "Boost::Chrono - Internal Error");
+          return time_point();
         }
     }
 }