-#define to_utf8_lower(a) Perl_to_utf8_lower(aTHX_ a)
-#define to_utf8_upper(a) Perl_to_utf8_upper(aTHX_ a)
-#define to_utf8_title(a) Perl_to_utf8_title(aTHX_ a)
+#define to_utf8_case(a,b,c,d,e,f) Perl_to_utf8_case(aTHX_ a,b,c,d,e,f)
+#define to_utf8_lower(a,b,c) Perl_to_utf8_lower(aTHX_ a,b,c)
+#define to_utf8_upper(a,b,c) Perl_to_utf8_upper(aTHX_ a,b,c)
+#define to_utf8_title(a,b,c) Perl_to_utf8_title(aTHX_ a,b,c)