#define to_utf8_lower Perl_to_utf8_lower
#define to_utf8_upper Perl_to_utf8_upper
#define to_utf8_title Perl_to_utf8_title
+#define to_utf8_fold Perl_to_utf8_fold
#if defined(UNLINK_ALL_VERSIONS)
#define unlnk Perl_unlnk
#endif
#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)
+#define to_utf8_fold(a,b,c) Perl_to_utf8_fold(aTHX_ a,b,c)
#if defined(UNLINK_ALL_VERSIONS)
#define unlnk(a) Perl_unlnk(aTHX_ a)
#endif