Index: perl_matcher.hpp
===================================================================
--- perl_matcher.hpp	(revision 58325)
+++ perl_matcher.hpp	(working copy)
@@ -61,7 +61,7 @@
 {
    return ((c >= (1 << CHAR_BIT)) ? true : map[c] & mask);
 }
-#if !defined(__hpux) // WCHAR_MIN not usable in pp-directives.
+#if !defined(__hpux) && !defined(__WINSCW__) // WCHAR_MIN not usable in pp-directives.
 #if defined(WCHAR_MIN) && (WCHAR_MIN == 0) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
 inline bool can_start(wchar_t c, const unsigned char* map, unsigned char mask)
 {
Index: regex_traits_defaults.hpp
===================================================================
--- regex_traits_defaults.hpp	(revision 58325)
+++ regex_traits_defaults.hpp	(working copy)
@@ -84,7 +84,7 @@
 {
    return false;
 }
-#ifndef __hpux // can't use WCHAR_MAX/MIN in pp-directives
+#if !defined(__hpux) && !defined(__WINSCW__) // can't use WCHAR_MAX/MIN in pp-directives
 #ifdef _MSC_VER 
 template<>
 inline bool is_combining<wchar_t>(wchar_t c)