diff -urP --exclude=CVS boost-1.33cvs/boost/iostreams/code_converter.hpp boost_1_33_0/boost/iostreams/code_converter.hpp
--- boost-1.33cvs/boost/iostreams/code_converter.hpp	2005-06-04 00:42:43.000000000 +0200
+++ boost_1_33_0/boost/iostreams/code_converter.hpp	2005-08-27 01:40:53.000000000 +0200
@@ -169,7 +169,7 @@
 
     policy_type& dev() { return **dev_; }
 
-    enum {
+    enum flag_type {
         f_open             = 1,
         f_input_closed     = f_open << 1,
         f_output_closed    = f_input_closed << 1
diff -urP --exclude=CVS boost-1.33cvs/boost/iostreams/detail/streambuf/indirect_streambuf.hpp boost_1_33_0/boost/iostreams/detail/streambuf/indirect_streambuf.hpp
--- boost-1.33cvs/boost/iostreams/detail/streambuf/indirect_streambuf.hpp	2005-07-07 15:03:06.000000000 +0200
+++ boost_1_33_0/boost/iostreams/detail/streambuf/indirect_streambuf.hpp	2005-08-27 01:40:11.000000000 +0200
@@ -118,7 +118,7 @@
     void sync_impl();
     void close_impl(BOOST_IOS::openmode);
 
-    enum {
+    enum flag_type {
         f_open             = 1,
         f_input_closed     = f_open << 1,
         f_output_closed    = f_input_closed << 1,
diff -urP --exclude=CVS boost-1.33cvs/boost/iostreams/filter/aggregate.hpp boost_1_33_0/boost/iostreams/filter/aggregate.hpp
--- boost-1.33cvs/boost/iostreams/filter/aggregate.hpp	2005-07-16 01:47:02.000000000 +0200
+++ boost_1_33_0/boost/iostreams/filter/aggregate.hpp	2005-08-27 01:38:33.000000000 +0200
@@ -145,7 +145,7 @@
         do_close();
     }
 
-    enum {
+    enum flag_type {
         f_read   = 1,
         f_write  = f_read << 1,
         f_eof    = f_write << 1
diff -urP --exclude=CVS boost-1.33cvs/boost/iostreams/filter/gzip.hpp boost_1_33_0/boost/iostreams/filter/gzip.hpp
--- boost-1.33cvs/boost/iostreams/filter/gzip.hpp	2005-06-09 04:07:00.000000000 +0200
+++ boost_1_33_0/boost/iostreams/filter/gzip.hpp	2005-08-27 01:36:09.000000000 +0200
@@ -267,7 +267,7 @@
         boost::iostreams::put(next, static_cast<char>(0xFF & (n >> 24)));
     }
 
-    enum {
+    enum flag_type {
         f_header_done = 1,
         f_body_done = f_header_done << 1,
         f_footer_done = f_body_done << 1
@@ -456,7 +456,7 @@
         if (static_cast<int>(read_uint32(rng, gzip::bad_footer)) != this->total_out())
             throw gzip_error(gzip::bad_length);
     }
-    enum {
+    enum flag_type {
         f_header_read  = 1,
         f_footer_read  = f_header_read << 1,
         f_text         = f_footer_read << 1
diff -urP --exclude=CVS boost-1.33cvs/boost/iostreams/filter/line.hpp boost_1_33_0/boost/iostreams/filter/line.hpp
--- boost-1.33cvs/boost/iostreams/filter/line.hpp	2005-07-16 01:46:02.000000000 +0200
+++ boost_1_33_0/boost/iostreams/filter/line.hpp	2005-08-27 01:30:31.000000000 +0200
@@ -193,7 +193,7 @@
         pos_ = string_type::npos;
     }
 
-    enum {
+    enum flag_type {
         f_read   = 1,
         f_write  = f_read << 1
     };
diff -urP --exclude=CVS boost-1.33cvs/boost/iostreams/filter/symmetric.hpp boost_1_33_0/boost/iostreams/filter/symmetric.hpp
--- boost-1.33cvs/boost/iostreams/filter/symmetric.hpp	2005-07-16 01:46:40.000000000 +0200
+++ boost_1_33_0/boost/iostreams/filter/symmetric.hpp	2005-08-27 01:34:17.000000000 +0200
@@ -231,7 +231,7 @@
 
     void close();
 
-    enum {
+    enum flag_type {
         f_read   = 1,
         f_write  = f_read << 1,
         f_eof    = f_write << 1,