diff -rupN boost_1_60_0/boost/log/sources/record_ostream.hpp boost_1_60_0.new/boost/log/sources/record_ostream.hpp
--- boost_1_60_0/boost/log/sources/record_ostream.hpp	Sun Nov 15 14:47:43 2015
+++ boost_1_60_0.new/boost/log/sources/record_ostream.hpp	Tue May  3 22:40:59 2016
@@ -252,8 +252,28 @@ struct stream_provider
         //! Log record stream adapter
         basic_record_ostream< char_type > stream;
 
+        //! Stream format flags
+        std::ios_base::fmtflags fmtflags;
+
+        //! Stream precision
+        std::streamsize precision;
+
+        //! Stream field width
+        std::streamsize width;
+
+        //! Stream fill character
+        char_type fill;
+
         //! Initializing constructor
-        explicit stream_compound(record& rec) : next(NULL), stream(rec) {}
+        explicit stream_compound(record& rec) :
+            next(NULL),
+            stream(rec),
+            fmtflags(stream.flags()),
+            precision(stream.precision()),
+            width(stream.width()),
+            fill(stream.fill())
+        {
+        }
     };
 
     //! The method returns an allocated stream compound
diff -rupN boost_1_60_0/libs/log/src/record_ostream.cpp boost_1_60_0.new/libs/log/src/record_ostream.cpp
--- boost_1_60_0/libs/log/src/record_ostream.cpp	Sun Nov 15 14:47:43 2015
+++ boost_1_60_0.new/libs/log/src/record_ostream.cpp	Tue May  3 22:40:59 2016
@@ -139,6 +139,13 @@ stream_provider< CharT >::allocate_compo
         stream_compound* p = pool.m_Top;
         pool.m_Top = p->next;
         p->next = NULL;
+
+        // restore the original stream state saved at construction
+        p->stream.flags(p->fmtflags);
+        p->stream.precision(p->precision);
+        p->stream.width(p->width);
+        p->stream.fill(p->fill);
+
         p->stream.attach_record(rec);
         return p;
     }