From 9c9a405b1b81c3e5c56e10804e6bc53382b0812f Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Tue, 4 Jul 2000 07:03:16 +0000
Subject: [PATCH] (mbrtowc): Assign to *pwc, and return 1 only if result is
 nonzero. (iswprint): Use ISPRINT when substituting our own mbrtowc.

---
 lib/quotearg.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/lib/quotearg.c b/lib/quotearg.c
index 2483164a65..902192e701 100644
--- a/lib/quotearg.c
+++ b/lib/quotearg.c
@@ -64,15 +64,18 @@
 #  define mbrtowc(pwc, s, n, ps) (mbrtowc) (pwc, s, n, 0)
 # endif
 #else
-# define mbrtowc(pwc, s, n, ps) 1
+# define mbrtowc(pwc, s, n, ps) ((*(pwc) = *(s)) != 0)
 # define mbsinit(ps) 1
+# define iswprint(wc) ISPRINT ((unsigned char) (wc))
 #endif
 
-#if HAVE_WCTYPE_H
-# include <wctype.h>
-#endif
-#if !defined iswprint && !HAVE_ISWPRINT
-# define iswprint(wc) 1
+#ifndef iswprint
+# if HAVE_WCTYPE_H
+#  include <wctype.h>
+# endif
+# if !defined iswprint && !HAVE_ISWPRINT
+#  define iswprint(wc) 1
+# endif
 #endif
 
 #define INT_BITS (sizeof (int) * CHAR_BIT)
-- 
2.30.2