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Revision 32716d47

Added by nagachika (Tomoyuki Chikanaga) over 11 years ago

merge revision(s) 43851,43882,43883,43995:

    * 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.

    * ruby_atomic.h: define ATOMIC_SIZE_CAS() with
      __atomic_compare_exchange_n() and refactoring.

    * ruby_atomic.h: remove duplicate definisions between ATOMIC_XXX
      and ATOMIC_SIZE_XXX.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@44316 b2dd03c8-39d4-4d8f-98ff-823fe69b080e