Index: u32regex_token_iterator.hpp
===================================================================
--- u32regex_token_iterator.hpp	(revision 43)
+++ u32regex_token_iterator.hpp	(working copy)
@@ -283,7 +283,7 @@
 }
 #endif
 #ifndef U_WCHAR_IS_UTF16
-inline u32regex_token_iterator<const UChar*> make_u32regex_token_iterator(const UChar* p, const u32regex& e, int submatch = 0, regex_constants::match_flag_type m = regex_constants::match_default)
+inline u32regex_token_iterator<const UChar*> make_u32regex_token_iterator(const UChar* p, const u32regex& e, int /*submatch = 0*/, regex_constants::match_flag_type m = regex_constants::match_default)
 {
    return u32regex_token_iterator<const UChar*>(p, p+u_strlen(p), e, m);
 }
@@ -345,7 +345,7 @@
 }
 #endif
 #ifndef U_WCHAR_IS_UTF16
-inline u32regex_token_iterator<const UChar*> make_u32regex_token_iterator(const UChar* p, const u32regex& e, const std::vector<int>& submatch, regex_constants::match_flag_type m = regex_constants::match_default)
+inline u32regex_token_iterator<const UChar*> make_u32regex_token_iterator(const UChar* p, const u32regex& e, const std::vector<int>& /*submatch*/, regex_constants::match_flag_type m = regex_constants::match_default)
 {
    return u32regex_token_iterator<const UChar*>(p, p+u_strlen(p), e, m);
 }
Index: perl_matcher.hpp
===================================================================
--- perl_matcher.hpp	(revision 43)
+++ perl_matcher.hpp	(working copy)
@@ -45,6 +45,10 @@
 {
    return ((c < static_cast<charT>(0)) ? true : ((c >= static_cast<charT>(1 << CHAR_BIT)) ? true : map[c] & mask));
 }
+inline bool can_start(unsigned int c, const unsigned char* map, unsigned char mask)
+{
+   return (((c >= static_cast<unsigned int>(1 << CHAR_BIT)) ? true : map[c] & mask));
+}
 inline bool can_start(char c, const unsigned char* map, unsigned char mask)
 {
    return map[(unsigned char)c] & mask;