comments for Curses, including period spacing and column width.

  This patch also fixed some typos. Thanks to @postmodern for the patch!
  [Fixes GH-420] https://github.com/ruby/ruby/pull/420


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43316 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* ext/curses/curses.c (NUM2CH, CH2NUM): use proper macros for
  the size of chtype.

[ruby-core:56090] [Bug #8659]

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* samples/curses/*: Move Curses samples and refactor from mixin
  The samples are included in rdoc for module and use of mixin is
  confusing


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42241 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  when $SAFE is set to 4.  $SAFE=4 is now obsolete.
  [ruby-core:55222] [Feature #8468]

* object.c (rb_obj_untrusted, rb_obj_untrust, rb_obj_trust):
  Kernel#untrusted?, untrust, and trust are now deprecated.
  Their behavior is same as tainted?, taint, and untaint,
  respectively.

* include/ruby/ruby.h (OBJ_UNTRUSTED, OBJ_UNTRUST): OBJ_UNTRUSTED()
  and OBJ_UNTRUST() are aliases of OBJ_TAINTED() and OBJ_TAINT(),
  respectively.

* array.c, class.c, debug.c, dir.c, encoding.c, error.c, eval.c,
  ext/curses/curses.c, ext/dbm/dbm.c, ext/dl/cfunc.c,
  ext/dl/cptr.c, ext/dl/dl.c, ext/etc/etc.c, ext/fiddle/fiddle.c,
  ext/fiddle/pointer.c, ext/gdbm/gdbm.c, ext/readline/readline.c,
  ext/sdbm/init.c, ext/socket/ancdata.c, ext/socket/basicsocket.c,
  ext/socket/socket.c, ext/socket/udpsocket.c,
  ext/stringio/stringio.c, ext/syslog/syslog.c, ext/tk/tcltklib.c,
  ext/win32ole/win32ole.c, file.c, gc.c, hash.c, io.c, iseq.c,
  load.c, marshal.c, object.c, proc.c, process.c, random.c, re.c,
  safe.c, string.c, thread.c, transcode.c, variable.c,
  vm_insnhelper.c, vm_method.c, vm_trace.c: remove code for
  $SAFE=4.

* test/dl/test_dl2.rb, test/erb/test_erb.rb,
  test/readline/test_readline.rb,
  test/readline/test_readline_history.rb, test/ruby/test_alias.rb,
  test/ruby/test_array.rb, test/ruby/test_dir.rb,
  test/ruby/test_encoding.rb, test/ruby/test_env.rb,
  test/ruby/test_eval.rb, test/ruby/test_exception.rb,
  test/ruby/test_file_exhaustive.rb, test/ruby/test_hash.rb,
  test/ruby/test_io.rb, test/ruby/test_method.rb,
  test/ruby/test_module.rb, test/ruby/test_object.rb,
  test/ruby/test_pack.rb, test/ruby/test_rand.rb,
  test/ruby/test_regexp.rb, test/ruby/test_settracefunc.rb,
  test/ruby/test_struct.rb, test/ruby/test_thread.rb,
  test/ruby/test_time.rb: remove tests for $SAFE=4.

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* ext/curses/extconf.rb (curses_version): try once for each tests, a
  function or a variable.  fallback to variable for old SVR4.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40538 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  Patch by Michal Suchanek [Bug #8121] [ruby-core:53520]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40506 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* ext/socket/extconf.rb: Test the behavior of fd passing with MSG_PEEK
  only if recvmsg(), msg_control member, AF_UNIX and SCM_RIGHTS are
  available.



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  --with-curses-version={function,variable} configure option for
  cross-compiling.



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