URL http://www.tcltk.com/ is unresponsive, and should be http://tcl.activestate.com/ according to the MOTD in ftp://ftp.scriptics.com/pub/tcl/.

tcl/tcl.spec

@@ -26,7 +26,7 @@
 #   package information
 Name:         tcl
 Summary:      Tool Command Language (TCL)
-URL:          http://www.tcltk.com/
+URL:          http://tcl.activestate.com/
 Vendor:       John Ousterhout
 Packager:     The OpenPKG Project
 Distribution: OpenPKG [REL]