Links to libstdc++ document are inaccessible.

[sxzzsf]

Hi,

On the page of http://gcc.gnu.org/onlinedocs/, links to following 
libstdc++ documents are inaccessible:

http://gcc.gnu.org/onlinedocs/gcc-4.6.2/libstdc++/manual/spine.html
http://gcc.gnu.org/onlinedocs/gcc-4.6.2/libstdc++/libstdc++-manual.pdf.bz2
http://gcc.gnu.org/onlinedocs/gcc-4.6.2/libstdc++/libstdc++-manual-single.xml.bz2
http://gcc.gnu.org/onlinedocs/gcc-4.6.2/libstdc++/libstdc++-manual.html.tar.bz2
http://gcc.gnu.org/onlinedocs/gcc-4.6.2/libstdc++/api/
http://gcc.gnu.org/onlinedocs/gcc-4.6.2/libstdc++/libstdc++-api.pdf.bz2
http://gcc.gnu.org/onlinedocs/gcc-4.6.2/libstdc++/libstdc++-api-single.xml.bz2
http://gcc.gnu.org/onlinedocs/gcc-4.6.2/libstdc++/libstdc++-api.html.tar.bz2