* ext/socket/extconf.rb: don't test ss_family and ss_len member of
  struct sockaddr_storage.  They are not used now except SunOS
  specific code.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39483 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* thread.c: Document Thread::new, clean up ::fork and mention calling
  super if subclassing Thread


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39484 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
thread.c: remove unnecessary sentence

* thread.c (thread_start): initialize method is not concerned with
  Thread.start and Thread.fork.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39485 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
configure.in: find Setup file automatically

* configure.in (setup): find Setup file from target_os 1. by
  suffix (e.g. Setup.nacl, Setup.atheos), 2. by "platform"
  option (e.g. Setup.nt, Setup.emx), and 3. default Setup.  And
  Setup.dj had been removed.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39486 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
string.c: STRING_ENUMERATORS_WANTARRAY

* string.c (STRING_ENUMERATORS_WANTARRAY): name preprocessing
  codition.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39487 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
mkmf.rb: default libdirname

* lib/mkmf.rb (MakeMakefile#init_mkmf): default libdirname to libdir.
* tool/rbinstall.rb: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39488 b2dd03c8-39d4-4d8f-98ff-823fe69b080e