shyouhei	2018-01-19 12:57:53 +0900 (Fri, 19 Jan 2018)

  New Revision: 61943

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61943

  Log:
    ruby_gc_debug_indent needed only when RUBY_MARK_FREE_DEBUG

  Modified files:
    trunk/gc.c
Index: gc.c
===================================================================
--- gc.c	(revision 61942)
+++ gc.c	(revision 61943)
@@ -826,7 +826,9 @@ struct RZombie { https://github.com/ruby/ruby/blob/trunk/gc.c#L826
 
 #define nomem_error GET_VM()->special_exceptions[ruby_error_nomemory]
 
+#if RUBY_MARK_FREE_DEBUG
 int ruby_gc_debug_indent = 0;
+#endif
 VALUE rb_mGC;
 int ruby_disable_gc = 0;
 

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