Fix some compiler warnings if compiling without system wide character functions

1 files changed, 8 insertions, 0 deletions

diff --git a/mbyte.h b/mbyte.h
index a9a97a20..5691fda5 100644
--- a/mbyte.h
+++ b/mbyte.h
@@ -20,11 +20,19 @@
 #ifdef iswalnum
 # undef iswalnum
 #endif
+#ifdef iswalpha
+# undef iswalpha
+#endif
+#ifdef iswupper
+# undef iswupper
+#endif
 size_t wcrtomb (char *s, wchar_t wc, mbstate_t *ps);
 size_t mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps);
 int iswprint (wint_t wc);
 int iswspace (wint_t wc);
 int iswalnum (wint_t wc);
+int iswalpha (wint_t wc);
+int iswupper (wint_t wc);
 wint_t towupper (wint_t wc);
 wint_t towlower (wint_t wc);
 int wcwidth (wchar_t wc);