To meet standards (and server configuration) on www.gnu.org where our web pages are hosted as well, I added a trivial file gcc.html to our web pages:
<meta http-equiv="refresh" content="0; url=index.html"> This redirects to our index page and should _not_ be referenced anywhere within our control, be it from our own web pages or externally, it is solely there for the purpose of www.gnu.org. Gerald