Index: libs/program_options/src/utf8_codecvt_facet.cpp
===================================================================
RCS file: /cvsroot/boost/boost/libs/program_options/src/utf8_codecvt_facet.cpp,v
retrieving revision 1.6
diff -u -p -b -B -r1.6 utf8_codecvt_facet.cpp
--- libs/program_options/src/utf8_codecvt_facet.cpp	13 Jul 2004 15:12:26 -0000	1.6
+++ libs/program_options/src/utf8_codecvt_facet.cpp	21 Jul 2004 14:26:48 -0000
@@ -113,7 +113,7 @@ std::codecvt_base::result utf8_codecvt_f
     while (from != from_end && to != to_end) {
 
         // Check for invalid UCS-4 character
-        if (*from  > WCHAR_MAX) {
+        if (*from  > boost::numeric_limits<wchar_t>::max()) {
             from_next = from;
             to_next = to;
             return std::codecvt_base::error;