https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107610
--- Comment #4 from Georg-Johann Lay <gjl at gcc dot gnu.org> --- Also affected are other bits of the web page that are auto-generated, like https://gcc.gnu.org/install/configure.html And with the new URLs, "deep" links like https://gcc.gnu.org/install/configuration.html#avr ceased to work, too, even though the old ./gcc/doc/install.texi generated (working) anchors like: @html <a name="avr"></a> @end html @item --with-avrlibc So the porting-to-sphinx dropped them, which is really sad.