Startup problems

[Daryl Lee]

I am trying to work my way through the "GNU Autoconf, Automake, and
Libtool" tutorial, and have run into a problem with (I think) Autoscan.

When I run autoscan in the "foonly" project, freshly untarred, I get a
warning: "missing AC_PREREQ wanted by: autoscan".

When I run autoscan in the "small" project, freshly untarred, I get a
whole slew of missing macros in addition to that one: AC_CHECK_DECLS,
AC_CHECK_HEADERS, ... (full list available on request).

Here are my questions:
1.  Should I ignore warnings?
2.  How do I resolve these warnings?
3.  Is there a better startup guide than the referenced text?

Context:
m4 version 1.4.3
autoscan version 2.59

Any help is appreciated.

-- 
Daryl Lee
Open the Present, it's a Gift.