 | Table of Contents: - Licensing Terms for libvir
libvir is released under the GNU Lesser
General Public License, see the file COPYING.LIB in the distribution
for the precise wording. The only library that libvir depends upon is the
Xen store access library which is also licenced under the LGPL.
- Can I embed libvir in a proprietary application ?
Yes. The LGPL allows you to embed libvir into a proprietary
application. It would be graceful to send-back bug fixes and improvements
as patches for possible incorporation in the main development tree. It
will decrease your maintainance costs anyway if you do so.
- Where can I get libvir ?
The original distribution comes from ftp://libvir.org/libvir/.
- I can't install the libvir/libvir-devel RPM packages due to failed
dependencies
The most generic solution is to re-fetch the latest src.rpm , and
rebuild it locally with
rpm --rebuild libvir-xxx.src.rpm.
If everything goes well it will generate two binary rpm packages (one
providing the shared libs and virsh, and the other one, the -devel
package, providing includes, static libraries and scripts needed to build
applications with libvir that you can install locally.
One can also rebuild the RPMs from a tarball:
rpmbuild -ta libdir-xxx.tar.gz
Or from a configured tree with:
make rpm
- Failure to use the API for non-root users
Large parts of the API are only accessible as root, however the read
only access to the xenstore data doesnot have to be forbidden to user, at
least for monitoring purposes. If "virsh info" fails to run as an user,
change the mode of the xenstore read-only socket with:
chmod 666 /var/run/xenstored/socket_ro
- What is the process to compile libvir ?
As most UNIX libraries libvir follows the "standard":
gunzip -c libvir-xxx.tar.gz | tar xvf -
cd libvir-xxxx
./configure --help
to see the options, then the compilation/installation proper
./configure [possible options]
make
make install
At that point you may have to rerun ldconfig or a similar utility to
update your list of installed shared libs.
- What other libraries are needed to compile/install libvir ?
Libvir requires libxenstore, which is usually provided by the xen
packages as well as the public headers to compile against libxenstore.
- I use the CVS version and there is no configure script
The configure script (and other Makefiles) are generated. Use the
autogen.sh script to regenerate the configure script and Makefiles,
like:
./autogen.sh --prefix=/usr --disable-shared
- Troubles compiling or linking programs using libvir
To simplify the process of reusing the library, libvir comes with
pkgconfig support, which can be used directly from autoconf support or
via the pkg-config command line tool, like:
pkg-config libvir --libs
Daniel Veillard |
|
|
|
