1 files changed, 8 insertions, 1 deletions
diff --git a/lib/wcwidth.h b/lib/wcwidth.h
index 9af75e0a7..37b83cb82 100644
--- a/lib/wcwidth.h
+++ b/lib/wcwidth.h
@@ -36,7 +36,14 @@
 #  include <wctype.h>
 # endif
 # if !defined iswprint && !HAVE_ISWPRINT
-#  define iswprint(wc) 1
+static inline int
+iswprint (wint_t wc)
+{
+  return (wc >= 0 && wc < 128
+	  ? wc >= ' ' && wc <= '~'
+	  : 1);
+}
+#  define iswprint iswprint
 # endif
 
 # ifndef HAVE_DECL_WCWIDTH