To build an autotools tarball of, for instance Tao.OpenGL, you
currently need either the (bleeding edge) Prebuild-cjac branch of dnpb
or the Prebuild.exe from said branch.  To get the whole package, do
the following:

svn co https://dnpb.svn.sourceforge.net/svnroot/dnpb/branches/Prebuild-cjac &&
cd Prebuild-cjac                 &&
./Prebuild.exe /target autotools &&
cd autotools/Prebuild/Prebuild   &&
sh autogen.sh                    &&
make                             &&
sudo make install

This will put a script called 'prebuild' in /usr/local/bin, which is
probably in your PATH.  The 'prebuild' script takes the same arguments
as Prebuild.exe.  To see the usage docs, run the following:

prebuild /usage

Now that you have the bleeding edge prebuild, prebuild /target
autotools will create an autotools/ directory which contains the files
needed to create autotools distributions of prebuild packages.

Let's try this on Tao.OpenGL:

svn co http://anonsvn.mono-project.com/source/trunk/tao &&
cd tao/src/Tao.OpenGL &&
prebuild /target autotools &&
cd autotools/Tao.OpenGL &&
sh autogen.sh &&
make

You should now have all of the .dll files required to use Tao.OpenGL.
To install a given package, cd to its directory and run 'sudo make install':

cd Tao.OpenGL && sudo make install

You should now have:
* Tao.OpenGl.pc in /usr/local/lib/pkgconfig/
* Tao.OpenGl.dll in /usr/local/lib/mono/Tao.OpenGl/
* Tao.OpenGl in your GAC

You can now run something like this:

$ pkg-config --modversion Tao.OpenGl
2.1.0.4

You can now add a dependence on Tao.OpenGl into your application by
adding something like the following to your configure.ac (or
configure.in, if you like using deprecated filenames):

TAO_OPENGL_REQUIRED_VERSION=2.1.0

PKG_CHECK_MODULES(TAO_OPENGL_DEPENDENCIES,
                  Tao.OpenGl >= $TAO_OPENGL_REQUIRED_VERSION,
		  has_tao_opengl=yes,
		  has_tao_opengl=no
		  )

if test "x$has_tao_opengl" = "xno"; then
  AC_MSG_WARN([Tao.OpenGl not detected; examples will not be built])
else
  AC_MSG_NOTICE([Tao.OpenGl found; examples will be built])
fi

AM_CONDITIONAL(HAS_TAO_OPENGL, test x$has_tao_opengl = xyes)