Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
tcltklib.so
tkutil.so
ruby-tk
ruby-tk(x86-32)

Requires :

libtk8.5.so
libc.so.6(GLIBC_2.4)
rpmlib(CompressedFileNames) <= 3.0.4-1
ruby = 2.1.2
libc.so.6(GLIBC_2.2)
rpmlib(PayloadIsLzma) <= 4.4.6-1
libtcl8.5.so
libruby.so.2.1
libc.so.6(GLIBC_2.0)
libc.so.6(GLIBC_2.1.3)
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
libc.so.6
libc.so.6(GLIBC_2.3.4)

Content of RPM :
/usr/lib/ruby/2.1.0/i586-linux-gnu/tcltklib.so
/usr/lib/ruby/2.1.0/i586-linux-gnu/tkutil.so
/usr/lib/ruby/2.1.0/multi-tk.rb
/usr/lib/ruby/2.1.0/remote-tk.rb
/usr/lib/ruby/2.1.0/tcltk.rb
/usr/lib/ruby/2.1.0/tk
/usr/lib/ruby/2.1.0/tk.rb
/usr/lib/ruby/2.1.0/tk/after.rb
/usr/lib/ruby/2.1.0/tk/autoload.rb
/usr/lib/ruby/2.1.0/tk/bgerror.rb
/usr/lib/ruby/2.1.0/tk/bindtag.rb
/usr/lib/ruby/2.1.0/tk/busy.rb
/usr/lib/ruby/2.1.0/tk/button.rb
/usr/lib/ruby/2.1.0/tk/canvas.rb
/usr/lib/ruby/2.1.0/tk/canvastag.rb
/usr/lib/ruby/2.1.0/tk/checkbutton.rb
/usr/lib/ruby/2.1.0/tk/clipboard.rb
/usr/lib/ruby/2.1.0/tk/clock.rb
/usr/lib/ruby/2.1.0/tk/composite.rb
/usr/lib/ruby/2.1.0/tk/console.rb
/usr/lib/ruby/2.1.0/tk/dialog.rb
/usr/lib/ruby/2.1.0/tk/encodedstr.rb
/usr/lib/ruby/2.1.0/tk/entry.rb
/usr/lib/ruby/2.1.0/tk/event.rb
/usr/lib/ruby/2.1.0/tk/font.rb
/usr/lib/ruby/2.1.0/tk/fontchooser.rb
/usr/lib/ruby/2.1.0/tk/frame.rb
/usr/lib/ruby/2.1.0/tk/grid.rb
/usr/lib/ruby/2.1.0/tk/image.rb
/usr/lib/ruby/2.1.0/tk/itemconfig.rb
There is 329 files more in these RPM.