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Our docs have not been fully updated to reflect the separate build directory. Suggested-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
116 lines
3.1 KiB
XML
116 lines
3.1 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html>
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<html xmlns="http://www.w3.org/1999/xhtml">
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<body>
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<h1><a id="installation">libvirt Installation</a></h1>
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<ul id="toc"></ul>
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<h2><a id="compiling">Compiling a release tarball</a></h2>
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<p>
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libvirt uses the standard setup/build/install steps and mandates
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that the build directory is different from the source directory:
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</p>
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<pre>
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$ xz -dc libvirt-x.x.x.tar.xz | tar xvf -
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$ cd libvirt-x.x.x
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$ meson build</pre>
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<p>
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The <i>meson</i> script can be given options to change its default
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behaviour.
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</p>
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<p>
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To get the complete list of the options run the following command:
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</p>
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<pre>
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$ meson configure</pre>
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<p>
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When you have determined which options you want to use (if any),
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continue the process.
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</p>
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<p>
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Note the use of <b>sudo</b> with the <i>ninja install</i> command
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below. Using sudo is only required when installing to a location your
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user does not have write access to. Installing to a system location
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is a good example of this.
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</p>
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<p>
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If you are installing to a location that your user <i>does</i> have write
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access to, then you can instead run the <i>ninja install</i> command
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without putting <b>sudo</b> before it.
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</p>
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<pre>
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$ meson build <i>[possible options]</i>
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$ ninja -C build
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$ <b>sudo</b> <i>ninja -C build install</i></pre>
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<p>
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At this point you <b>may</b> have to run ldconfig or a similar utility
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to update your list of installed shared libs.
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</p>
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<h2><a id="building">Building from a GIT checkout</a></h2>
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<p>
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The libvirt build process uses Meson build system. By default when
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the <code>meson</code> is run from within a GIT checkout, it
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will turn on -Werror for builds. This can be disabled with
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--werror=false, but this is not recommended.
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</p>
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<p>To build & install libvirt to your home
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directory the following commands can be run:
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</p>
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<pre>
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$ meson build --prefix=$HOME/usr
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$ ninja -C build
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$ <b>sudo</b> ninja -C build install</pre>
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<p>
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Be aware though, that binaries built with a custom prefix will not
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interoperate with OS vendor provided binaries, since the UNIX socket
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paths will all be different. To produce a build that is compatible
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with normal OS vendor prefixes, use
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</p>
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<pre>
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$ meson build -Dsystem=true
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$ ninja -C build
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</pre>
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<p>
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When doing this for day-to-day development purposes, it is recommended
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not to install over the OS vendor provided binaries. Instead simply
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run libvirt directly from the source tree. For example to run
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a privileged libvirtd instance
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</p>
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<pre>
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$ su -
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# service libvirtd stop (or systemctl stop libvirtd.service)
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# /home/to/your/checkout/build/src/libvirtd
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</pre>
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<p>
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It is also possible to run virsh directly from the build tree
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using the ./run script (which sets some environment variables):
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</p>
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<pre>
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$ pwd
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/home/to/your/checkout/build
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$ ./run ./tools/virsh ....
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</pre>
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</body>
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</html>
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