nobu	2016-12-24 22:22:53 +0900 (Sat, 24 Dec 2016)

  New Revision: 57175

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=57175

  Log:
    regint.h: version for secure functions
    
    * regint.h (xvsnprintf): secure version functions are not
      supported on old VC.

  Modified files:
    trunk/regint.h
Index: regint.h
===================================================================
--- regint.h	(revision 57174)
+++ regint.h	(revision 57175)
@@ -202,7 +202,7 @@ https://github.com/ruby/ruby/blob/trunk/regint.h#L202
 #define xmemcpy     memcpy
 #define xmemmove    memmove
 
-#if defined(_WIN32) && !defined(__GNUC__)
+#if defined(RUBY_MSVCRT_VERSION) && RUBY_MSVCRT_VERSION >= 90 && !defined(__GNUC__)
 # define xalloca     _alloca
 # define xvsnprintf(buf,size,fmt,args)  _vsnprintf_s(buf,size,_TRUNCATE,fmt,args)
 # define xsnprintf   sprintf_s

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