Index: boost/date_time/time_facet.hpp
===================================================================
--- boost/date_time/time_facet.hpp	(revision 84007)
+++ boost/date_time/time_facet.hpp	(working copy)
@@ -866,6 +866,7 @@
                     break;
                   // %s is the same as %S%f so we drop through into %f
                 }
+                BOOST_FALLTHROUGH;
               case 'f':
                 {
                   // check for decimal, check special_values if missing
@@ -1135,6 +1136,7 @@
                       break;
                     // %s is the same as %S%f so we drop through into %f
                   }
+                  BOOST_FALLTHROUGH;
                 case 'f':
                   {
                     // check for decimal, check SV if missing