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+Tue Nov 26 11:43:19 2013 Masaki Matsushita <glass.saga@gmail.com>
+
+ * ruby_atomic.h: use __atomic builtin functions supported by GCC.
+ __sync family are legacy functions now and it is recommended
+ that new code use the __atomic functions.
+ http://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html
+
+ * configure.in: check existence of __atomic functions.
+
Tue Nov 26 10:57:49 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ext/bigdecimal/bigdecimal.gemspec: revert Gem::Specification#date