nobu	2017-10-13 17:29:52 +0900 (Fri, 13 Oct 2017)

  New Revision: 60176

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=60176

  Log:
    defines.h: warn EXTERN
    
    * include/ruby/defines.h (EXTERN): warn as deprecated.

  Modified files:
    trunk/include/ruby/defines.h
Index: include/ruby/defines.h
===================================================================
--- include/ruby/defines.h	(revision 60175)
+++ include/ruby/defines.h	(revision 60176)
@@ -268,7 +268,16 @@ void xfree(void*); https://github.com/ruby/ruby/blob/trunk/include/ruby/defines.h#L268
 #endif
 
 #ifndef EXTERN
-#define EXTERN RUBY_EXTERN	/* deprecated */
+# if defined __GNUC__
+#   define EXTERN _Pragma("message \"EXTERN is deprecated, use RUBY_EXTERN instead\""); \
+    RUBY_EXTERN
+# elif defined _MSC_VER
+#   define EXTERN __pragma(message(__FILE__"("STRINGIZE(__LINE__)"): warning: "\
+				   "EXTERN is deprecated, use RUBY_EXTERN instead")); \
+    RUBY_EXTERN
+# else
+#   define EXTERN <-<-"EXTERN is deprecated, use RUBY_EXTERN instead"->->
+# endif
 #endif
 
 #ifndef RUBY_MBCHAR_MAXSIZE

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