* ext/tk/lib/tkextlib/blt.rb: double dashes (--) option doesn't work

properly on some versions of BLT (wrong description on the
  manual of `blt::bgexec'?).


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10807 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/tk/ChangeLog.tkextlib

@@ -1,3 +1,9 @@
+2006-08-31  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+
+	* lib/tkextlib/blt.rb: double dashes (--) option doesn't work
+	  properly on some versions of BLT (wrong description on the
+	  manual of `blt::bgexec'?).
+
 2005-12-11  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
 
 	* lib/tkextlib/SUPPORT_STATUS: update to support libraries in

ext/tk/lib/tkextlib/blt.rb

@@ -68,7 +68,7 @@ module Tk
 
       params.concat(hash_kv(args.shift, true)) if args[0].kind_of?(Hash)
 
-      params << '--'
+      params << '--' if args[0] =~ /^\s*-[^-]/
       params.concat(args)
 
       tk_call('::blt::bgexec', *params)
@@ -85,7 +85,7 @@ module Tk
 
       params.concat(hash_kv(args.shift, true)) if args[0].kind_of?(Hash)
 
-      params << '--'
+      params << '--' if args[0] =~ /^\s*-[^-]/
       params.concat(args)
       params << '&'