merge revision(s) 43942,43957,43975: [Backport #9187]

	* hash.c (rb_hash_rehash): fix to free new st_table when exception
	  is raised in do_hash(). [Bug #9187]

	* hash.c (rb_hash_rehash): make temporary st_table under the control
	  of GC. [Bug #9187]

	* test/ruby/test_hash.rb: add a test for above.

	* array.c (rb_hash_rehash): use hash_alloc() instead of rb_hash_new().
	  [Bug #9187]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44938 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 44628: [Backport #9413]

	* eval.c (rb_mod_s_constants): return its own constants for other
	  than Module itself.  [ruby-core:59763] [Bug #9413]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44939 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 44670,44671,44675: [Backport #8783]

	thread_pthread.c: timer thread stack size

	* thread_pthread.c (rb_thread_create_timer_thread): define the stack
  size for timer thread at compile time.
	* thread_pthread.c (rb_thread_create_timer_thread): expand timer
	  thread stack size to get rid of segfault on FreeBSD/powerpc64.
	  based on the patch by Steve Wills at [ruby-core:59923].
	  [ruby-core:56590] [Bug #8783]

	* thread_pthread.c (rb_thread_create_timer_thread): fix for platforms
	  where PTHREAD_STACK_MIN is a dynamic value and not a compile-time
	  constant.  [ruby-dev:47911] [Bug #9436]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44940 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 44731,44751: [Backport #8978]

	* ext/fiddle/closure.c: use sizeof(*pcl) for correct sizeof value.
	  [ruby-core:57599] [Bug #8978].  Thanks mame!

	* ext/fiddle/closure.c: use sizeof(*pcl) for correct sizeof value.
	  [ruby-core:57599] [Bug #8978].


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44941 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 44772,44773: [Backport #9430]

	benchmark/driver: avoid large alloc in driver process

	* benchmark/driver: avoid large alloc in driver process
  [ruby-core:59869] [Bug #9430]
	* benchmark/driver: avoid large alloc in driver process
	  [ruby-core:59869] [Bug #9430]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44942 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 44643: [Backport #9039]

	* ext/socket: Avoid unnecessary ppoll/select on Linux.
	  Patch by Eric Wong.  [ruby-core:57950] [Bug #9039]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44943 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 44642: [Backport #9093]

	* lib/resolv.rb (Resolv::DNS::Resource::TXT#data): Return concatenated
	  string.
	  Patch by Ryan Brunner.  [ruby-core:58220] [Bug #9093]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44944 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 44568: [Backport #9399]

	* iseq.c (iseq_load): keep type_map to get rid of memory leak.
	  based on a patch by Eric Wong at [ruby-core:59699].  [Bug #9399]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44946 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 44514: [Backport #9374]

	* ext/json/generator/depend: add build dependencies for json extension
	  [Bug #9374] [ruby-core:59609]

	* ext/json/parser/depend: ditto


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44947 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 44884: [Backport #9498]

	* lib/resolv.rb (Resolv::DNS::Message::MessageDecoder): Raise
	  DecodeError if no data before the limit.
	  Reported by Will Bryant.  [ruby-core:60557] [Bug #9498]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44948 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 44880: [Backport #9477]

	* lib/resolv.rb: Ignore name servers which cause EAFNOSUPPORT on
	  socket creation.
	  Reported by Bjoern Rennhak.  [ruby-core:60442] [Bug #9477]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44949 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ruby_atomic.h (ATOMIC_CAS): added.

* signal.c (ruby_atomic_compare_and_swap): ATOMIC_CAS implementation
  for non-VC/gcc platform.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44950 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 43851,43882,43996:

	* 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 (ATOMIC_PTR_EXCHANGE): atomic exchange function for
	  a generic pointer.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44952 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.in (ARCH_FLAG): __sync_val_compare_and_swap_4 needs
  -march=i486 on at least linux gcc 4.1.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44953 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket: revert r44943 because it causes errors on some linux
  platforms.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44954 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 43148,43149,43152: [Backport #8433]

	* thread.c (terminate_atfork_i): fix locking mutexes not unlocked in
	  forks when not tracked in thread.  [ruby-core:55102] [Bug #8433]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@45026 b2dd03c8-39d4-4d8f-98ff-823fe69b080e