What governs whether a project includes help2man?

[amores perros]

I just downloaded the cvs sources for GNU hello, in hopes of finding
a simple example of how to use help2man to generate localized man
pages -- I've seen gettext/gettext-runtime/man/Makefile.am, but it
is really very complicated, and fails to build on my system with complicated
errors that I'm not sure I can solve.

I was thinking, hello is meant as a canonical example, so I should copy it.

I did cvs checkout of the GNU hello project, ran sh autogen.sh, made
a build directory, and ran configure and make.

My compilation failed saying that I lack a help2man binary.

gettext includes a help2man copy in its man directory, so of course I
now am wondering what governs which projects do/should include
help2man, and which projects do/should not include it?

The hello/man/Makefile.am is really *very* much shorter than
gettext/gettext-runtime/man/Makefile.am.

Is hello meant to demonstrate how to generate a full set of
localized man pages? (At this point I suspect it is not meant to
demonstrate that.)

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