I've just tried to compile texinfo from the CVS; everything worked
fine until info.1 was generated -- no help2man was installed on my
system. After fixing this, building succeeded.
However, I've observed one minor issue: After the `make' error, a file
`info.1' has been created with the contents
.ab help2man is required to generate this page
Running `make' again after installation of help2man retained this
file, which is wrong.
I suggest that in case help2man isn't found, the dummy version of
info.1 gets removed (perhaps by adding `|| rm -f $@ && false' to the
rules using HELP2MAN).
Werner