ruby: fixes compatibility with ruby-1.8.5

ruby/compat.h

@@ -0,0 +1,60 @@
+/*
+ * MessagePack for Ruby
+ *
+ * Copyright (C) 2008-2010 FURUHASHI Sadayuki
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+#ifndef COMPAT_H__
+#define COMPAT_H__
+
+
+#ifdef HAVE_RUBY_ENCODING_H
+#include "ruby/encoding.h"
+#define COMPAT_HAVE_ENCODING
+extern int s_enc_utf8;
+extern int s_enc_ascii8bit;
+extern int s_enc_usascii;
+extern VALUE s_enc_utf8_value;
+#endif
+
+#ifdef RUBY_VM
+#define COMPAT_RERAISE rb_exc_raise(rb_errinfo())
+#else
+#define COMPAT_RERAISE rb_exc_raise(ruby_errinfo)
+#endif
+
+
+/* ruby 1.8.5 */
+#ifndef RSTRING_PTR
+#define RSTRING_PTR(s) (RSTRING(s)->ptr)
+#endif
+
+/* ruby 1.8.5 */
+#ifndef RSTRING_LEN
+#define RSTRING_LEN(s) (RSTRING(s)->len)
+#endif
+
+/* ruby 1.8.5 */
+#ifndef RARRAY_PTR
+#define RARRAY_PTR(s) (RARRAY(s)->ptr)
+#endif
+
+/* ruby 1.8.5 */
+#ifndef RARRAY_LEN
+#define RARRAY_LEN(s) (RARRAY(s)->len)
+#endif
+
+
+#endif /* compat.h */
+