makeinfo with utf-8 support

[Karl Hammar]

Hmm, when building I get:

 out/lilypond.nexi:62: warning: unrecognized encoding name `utf-8'.
 out/lilypond-internals.nexi:10: warning: unrecognized encoding name `utf-8'.
 out/music-glossary.nexi:6: warning: unrecognized encoding name `utf-8'.
 out/INSTALL.texi:6: warning: unrecognized encoding name `utf-8'.
 out/README.texi:6: warning: unrecognized encoding name `utf-8'.

I've got:

 $ makeinfo --version
 makeinfo (GNU texinfo) 4.8

The latest texinfo at http://ftp.gnu.org/gnu/texinfo/ seems to be too old. 
Does anybody know where the makeinfo with utf-8 support is, a patch ?

Regards
/Karl