autoconf error with lablgtk-2.12.0

[email protected] Sun, 14 Jun 2009 10:17:53 -0300

Newsgroups	gmane.comp.lang.ocaml.lib.gtk
Message-ID	<[email protected]>

Hello.

Some years ago I have patched lablgtk-2.6.0 to add support for
gtkdatabox-0.7.0.0 and it worked nicely in a project of mine.

Now I am going to update this patch to the latest versions of lablgtk
and gtkdatabox.

But GNU autoconf 2.63 is reporting errors with lablgtk-2.12.0 pristine
sources on my ~amd64 gentoo linux box:

$ autoconf
configure.in:42: error: possibly undefined macro: AC_MSG_ERROR
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.in:217: error: possibly undefined macro: AM_PATH_GTK_2_0


As I do not know much about the auto tools, I want some help in solving
this issue before continue the work I have proposed above.

Any help?

JosÃ© Romildo