dir.c: use built-in encoding indexes

* internal.h: add UTF8-MAC.
* dir.c (rb_utf8mac_encoding): use built-in encoding indexes in
  internal.h.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41744 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 3 deletions

diff --git a/dir.c b/dir.c
index 4781175e33..8a172d711b 100644
--- a/dir.c
+++ b/dir.c
@@ -91,9 +91,7 @@ char *strchr(char*,char);
 rb_encoding *
 rb_utf8mac_encoding(void)
 {
-    static rb_encoding *utf8mac;
-    if (!utf8mac) utf8mac = rb_enc_find("UTF8-MAC");
-    return utf8mac;
+    return rb_enc_from_index(ENCINDEX_UTF8_MAC);
 }
 
 static inline int