configure.in: use SSE2

* configure.in: use SSE2 instructions for drop unexpected
  precisions.  [ruby-core:54738] [Bug #8358]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44474 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-01-01

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44475 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
configure.in: LDFLAGS and DLDFLAGS for opt-dir

* configure.in: reset LDFLAGS and DLDFLAGS for opt-dir again after
  LIBPATHFLAG and RPATHFLAG are set.  [ruby-dev:47868] [Bug #9317]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44476 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_transcode.rb: add messages

* test/ruby/test_transcode.rb (test_valid_dummy_encoding): add
  assertion messages and suppress a warning.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44477 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* hash.c (rb_hash_keys): make rb_hash_keys() static.
  it is no longer used from array.c since r43969.
  the patch is from normalperson (Eric Wong).
  [ruby-core:59449] [Feature #9336]

* internal.h: remove definition of rb_hash_keys().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44478 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-01-02

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44479 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* array.c (rb_ary_zip): use ALLOCV_N() instead of ALLOCA_N().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44480 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_eval.c (method_missing): use ALLOCV_N() instead of
  ALLOCA_N() and rb_ary_tmp_new().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44481 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
dbm.c: yield dup of keystr

* ext/dbm/dbm.c (fdbm_fetch): yield dup of keystr, to make it shared
  and get rid of use of uninitialized variable.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44482 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
eval.c: extra modifier

* eval.c (rb_longjmp): remove an extra modifier from the forward
  declaration to match the actual definition.  [ruby-core:59451]
  [Bug #9338]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44483 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
mkrunnable.rb: fix DLL path on Windows

* tool/mkrunnable.rb: DLL needs placed at same directory as
  executables on Windows.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44484 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* io.c (io_fwrite): freeze converted str.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44485 b2dd03c8-39d4-4d8f-98ff-823fe69b080e