nobu	2014-10-10 23:31:37 +0900 (Fri, 10 Oct 2014)

  New Revision: 47868

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=47868

  Log:
    thread.c: fix for older gcc
    
    * thread.c (only_if_constant): get rid of __builtin_choose_expr()
      on older gcc.

  Modified files:
    trunk/thread.c
Index: thread.c
===================================================================
--- thread.c	(revision 47867)
+++ thread.c	(revision 47868)
@@ -145,7 +145,7 @@ static inline void blocking_region_end(r https://github.com/ruby/ruby/blob/trunk/thread.c#L145
 } while(0)
 
 #ifdef __GNUC__
-#ifdef HAVE_BUILTIN___BUILTIN_CHOOSE_EXPR
+#ifdef HAVE_BUILTIN___BUILTIN_CHOOSE_EXPR_CONSTANT_P
 #define only_if_constant(expr, notconst) __builtin_choose_expr(__builtin_constant_p(expr), (expr), (notconst))
 #else
 #define only_if_constant(expr, notconst) (__builtin_constant_p(expr) ? (expr) : (notconst))

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