nagai	2013-07-19 13:43:16 +0900 (Fri, 19 Jul 2013)

  New Revision: 42059

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=42059

  Log:
    * ext/tk/extconf.rb: Default search_versions are set 8.5 and 8.4 only. At present, Tcl/Tk8.6 is not supported.
    * ext/tk/extconf.rb: Fix typo. [ruby-core:56084] [Bug #8656]

  Modified files:
    trunk/ext/tk/extconf.rb

Index: ext/tk/extconf.rb
===================================================================
--- ext/tk/extconf.rb	(revision 42058)
+++ ext/tk/extconf.rb	(revision 42059)
@@ -8,7 +8,8 @@ TkLib_Config = {} https://github.com/ruby/ruby/blob/trunk/ext/tk/extconf.rb#L8
 TkLib_Config['search_versions'] =
   # %w[8.9 8.8 8.7 8.6 8.5 8.4 8.3 8.2 8.1 8.0 7.6 4.2]
   # %w[8.7 8.6 8.5 8.4 8.3 8.2 8.1 8.0]
-  %w[8.7 8.6 8.5 8.4 8.0] # to shorten search steps
+  # %w[8.7 8.6 8.5 8.4 8.0] # to shorten search steps
+  %w[8.5 8.4] # At present, Tcl/Tk8.6 is not supported.
 
 TkLib_Config['major_nums'] = '87'
 
@@ -315,7 +316,7 @@ def find_macosx_framework https://github.com/ruby/ruby/blob/trunk/ext/tk/extconf.rb#L316
   paths.map{|dir| dir.strip.chomp('/')}.each{|dir|
     next unless File.exist?(File.join(dir, "Tcl.framework", "Headers"))
     next unless File.directory?(tcldir = File.join(dir, "Tcl.framework"))
-    next unless File.exist?(File.join(dir, "Tk.framework"), "Headers")
+    next unless File.exist?(File.join(dir, "Tk.framework", "Headers"))
     next unless File.directory?(tkdir  = File.join(dir, "Tk.framework"))
     TkLib_Config["tcltk-framework"] = dir
     return [tcldir, tkdir]
@@ -2046,4 +2047,6 @@ if (TkLib_Config["tcltk-framework"] || https://github.com/ruby/ruby/blob/trunk/ext/tk/extconf.rb#L2047
   puts "\nFind Tcl/Tk libraries. Make tcltklib.so which is required by Ruby/Tk."
 else
   puts "\nCan't find proper Tcl/Tk libraries. So, can't make tcltklib.so which is required by Ruby/Tk."
+  puts "If you have Tcl/Tk libraries on your environment, you may be able to use them with configure options (see ext/tk/README.tcltklib)."
+  puts "At present, Tcl/Tk8.6 is not supported. Although you can try to use Tcl/Tk8.6 with configure options, it will not work correctly. I recommend you to use Tcl/Tk8.5 or 8.4."
 end

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