Host name guidelines? (and more)

[KJK::Hyperion]

Hi all. I'm about to add a new host to newlib, and I wonder if there are 
more precise guidelines than "machine-vendor-os". In particular: who's the 
"vendor", exactly? the machine's or the os's? And what characters can be 
used as "os", other than alphanumeric? I'm using newlib to power ReactOS's 
POSIX environment, called POSIX+, and I wonder if a host name of 
"i386-reactos-posix+" would be legal

Another question: I tried to compile the TEX files into HTML, but makeinfo 
complains about missing nodes. Are the docs available in HTML form 
elsewhere? or does anyone know what makeinfo complains about?