zsh: Completion treats filename that is encoded in UTF-8-MAC as UTF-8.

zsh-utf8mac-completion.patch

diff --git a/Src/utils.c b/Src/utils.c
index 26e2a5c..04c3783 100644
--- a/Src/utils.c
+++ b/Src/utils.c
@@ -4244,6 +4244,13 @@ mod_export char *
 zreaddir(DIR *dir, int ignoredots)
 {
     struct dirent *de;
+#ifdef HAVE_ICONV
+    static iconv_t conv_ds = (iconv_t)NULL;
+    static char *conv_name = (char *)NULL;
+    char *temp_name;
+    char *temp_name_ptr, *orig_name_ptr;
+    size_t temp_name_len, orig_name_len;
+#endif
 
     do {
 	de = readdir(dir);
@@ -4252,6 +4259,23 @@ zreaddir(DIR *dir, int ignoredots)
     } while(ignoredots && de->d_name[0] == '.' &&
 	(!de->d_name[1] || (de->d_name[1] == '.' && !de->d_name[2])));
 
+#ifdef HAVE_ICONV
+    if (!conv_ds)
+	conv_ds = iconv_open("UTF-8", "UTF-8-MAC");
+    if (conv_ds) {
+	orig_name_ptr = de->d_name;
+	orig_name_len = strlen(de->d_name);
+	conv_name = zrealloc(conv_name, orig_name_len+1);
+	temp_name_ptr = conv_name;
+	temp_name_len = orig_name_len;
+	if (iconv(conv_ds,&orig_name_ptr,&orig_name_len,&temp_name_ptr,&temp_name_len) >= 0) {
+	    *temp_name_ptr = '\0';
+	    temp_name = conv_name;
+	    return metafy(temp_name, -1, META_STATIC);
+	}
+    }
+#endif
+
     return metafy(de->d_name, -1, META_STATIC);
 }
 

Thank you for a useful patch. This has been merged into zsh's main repository:
http://sourceforge.net/p/zsh/code/ci/b3e5284f13162dc6941d5a5c1f2df9772eff2a8c/