nobu	2016-01-15 22:15:39 +0900 (Fri, 15 Jan 2016)

  New Revision: 53546

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=53546

  Log:
    disable unaligned word access
    
    * include/ruby/defines.h, st.c: disable unaligned word access with
      gcc 6 or later.  [Bug #11831]

  Modified files:
    trunk/include/ruby/defines.h
    trunk/st.c
Index: include/ruby/defines.h
===================================================================
--- include/ruby/defines.h	(revision 53545)
+++ include/ruby/defines.h	(revision 53546)
@@ -260,6 +260,10 @@ void rb_ia64_flushrs(void); https://github.com/ruby/ruby/blob/trunk/include/ruby/defines.h#L260
     RUBY_ALIAS_FUNCTION_TYPE(VALUE, prot, name, args)
 #endif
 
+#if !defined(UNALIGNED_WORD_ACCESS) && defined(__GNUC__) && __GNUC__ >= 6
+# define UNALIGNED_WORD_ACCESS 0
+#endif
+
 #ifndef UNALIGNED_WORD_ACCESS
 # if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
      defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || \
Index: st.c
===================================================================
--- st.c	(revision 53545)
+++ st.c	(revision 53546)
@@ -1379,6 +1379,10 @@ strhash(st_data_t arg) https://github.com/ruby/ruby/blob/trunk/st.c#L1379
 }
 #else
 
+#if !defined(UNALIGNED_WORD_ACCESS) && defined(__GNUC__) && __GNUC__ >= 6
+# define UNALIGNED_WORD_ACCESS 0
+#endif
+
 #ifndef UNALIGNED_WORD_ACCESS
 # if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
      defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || \

--
ML: ruby-changes@q...
Info: http://www.atdot.net/~ko1/quickml/