informations from existing Makefile.
* ext/socket/extconf.rb: check if getaddrinfo() works fine only when
wide-getaddrinfo option is not given. fixed: [ruby-dev:25422]
* ext/tk/extconf.rb: separate tkutil configuration.
* lib/mkmf.rb ($extmk): check if under ext directory.
* lib/mkmf.rb (Logging.postpone): allow recursive operation.
* lib/mkmf.rb (try_constant): make sure if really a constant, reduce
the number of times of compile.
* lib/mkmf.rb (have_macro, have_var, byte_order): new functions.
* lib/mkmf.rb (find_library): allow directory list with separators.
* lib/mkmf.rb (arg_config): manage provided configuration options.
* lib/mkmf.rb (dir_config): accept arrays of directory names as
default values.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7901 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/tk/depend: remove the information of tkutil
* ext/tk/make-tkutil: sub-part of Makefile to compile tkutil
* ext/tk/tkutil/tkutil.c: move tkutil.c to subdirectory
* ext/tk/tkutil/subconf.rb: configuration file for tkutil.c
* ext/tk/tkutil/depend: ditto
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7852 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
configure and configinfo
* ext/tk/lib/font.rb: ditto.
* ext/tk/lib/itemconfig.rb: support to use different Tcl commands
between item_configure and item_configinfo
* ext/tk/lib/itemfont.rb: ditto.
* ext/tk/extconf.rb: install SUPPORT_STATUS
* ext/tk/lib/tkextlib: some bug fixes (see ext/tk/ChangeLog.tkextlib)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7188 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
