hsbt	2015-11-08 14:01:33 +0900 (Sun, 08 Nov 2015)

  New Revision: 52487

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=52487

  Log:
    * ext/psych/psych_emitter.c: bakcport 5bd7744 from tenderlove/psych.
      support backword compatibility of Ruby 2.0

  Modified files:
    trunk/ChangeLog
    trunk/ext/psych/psych_emitter.c
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 52486)
+++ ChangeLog	(revision 52487)
@@ -1,3 +1,8 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Sun Nov  8 14:01:22 2015  SHIBATA Hiroshi  <hsbt@r...>
+
+	* ext/psych/psych_emitter.c: bakcport 5bd7744 from tenderlove/psych.
+	  support backword compatibility of Ruby 2.0
+
 Sun Nov  8 10:55:10 2015  Anton Davydov  <antondavydov.o@g...>
 
 	* io.c (rb_io_gets_m): Update IO#gets doc for characters more than
Index: ext/psych/psych_emitter.c
===================================================================
--- ext/psych/psych_emitter.c	(revision 52486)
+++ ext/psych/psych_emitter.c	(revision 52487)
@@ -1,5 +1,12 @@ https://github.com/ruby/ruby/blob/trunk/ext/psych/psych_emitter.c#L1
 #include <psych.h>
 
+#if !defined(RARRAY_CONST_PTR)
+#define RARRAY_CONST_PTR(s) (const VALUE *)RARRAY_PTR(s)
+#endif
+#if !defined(RARRAY_AREF)
+#define RARRAY_AREF(a, i) RARRAY_CONST_PTR(a)[i]
+#endif
+
 VALUE cPsychEmitter;
 static ID id_write;
 static ID id_line_width;

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