I built ok, but it seemed that I couldn`t install the virt-tools correctly.
Maybe I`ll use the virt-tools without needing to install, using the "run" script in the top directory.
But what big differences between stable branch and development branch ?
Is there any chance that I can get troubles for using development branch instead of stable branch?

From: Richard W.M. Jones <rjones@redhat.com>
To: THO HUYNH <feeliwood@yahoo.com>
Cc: "libguestfs@redhat.com" <libguestfs@redhat.com>
Sent: Monday, 26 March 2012, 1:38
Subject: Re: [Libguestfs] trouble compiling libguestfs 1.17.21

On Sun, Mar 25, 2012 at 07:20:16AM -0700, THO HUYNH wrote:
> here is the two results I got from three commands:
>
> $ grep for_each src/libguestfs.syms       
>
>     guestfs___for_each_disk;
>
>
> $ nm -D src/.libs/libguestfs.so | grep for_each
>     no result returned

This is the problem.

I understand the bug too: it's because you don't have the
libxml2-devel package installed.  From your configure output:

  checking for PCRE... yes
  checking for magic_file in -lmagic... no
  checking for LIBVIRT... yes
  checking for LIBXML2... no    <-----
  checking for LIBCONFIG... no
  checking for HIVEX... yes
  checking for FUSE... no

It should be possible to build libguestfs without libxml2, so I have
pushed the following patch which should fix the problem:

https://github.com/libguestfs/libguestfs/commit/f1d10672c7da94f8983b3b5d434e64b127da1242

Rich.

--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-top is 'top' for virtual machines.  Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://et.redhat.com/~rjones/virt-top