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78bcf5546b
Give guidance on how to check minimum meson version for a given package. Resolves: https://gitlab.com/libvirt/libvirt/-/issues/140 Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
101 lines
2.7 KiB
ReStructuredText
101 lines
2.7 KiB
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====================
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libvirt Installation
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====================
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.. contents::
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Compiling a release tarball
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---------------------------
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libvirt uses the standard setup/build/install steps and mandates that
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the build directory is different from the source directory:
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::
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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
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The *meson* script can be given options to change its default behaviour.
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**Note:** Please ensure that you have the appropriate minimal ``meson`` version
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installed in your build environment. The minimal version for a specific package
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can be checked in the top level ``meson.build`` file in the ``meson_version``
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field.
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To get the complete list of the options run the following command:
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::
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$ meson configure
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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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Note the use of **sudo** with the *ninja install* command below. Using
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sudo is only required when installing to a location your user does not
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have write access to. Installing to a system location is a good example
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of this.
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If you are installing to a location that your user *does* have write
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access to, then you can instead run the *ninja install* command without
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putting **sudo** before it.
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::
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$ meson build [possible options]
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$ ninja -C build
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$ sudo ninja -C build install
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At this point you **may** have to run ldconfig or a similar utility to
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update your list of installed shared libs.
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Building from a GIT checkout
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----------------------------
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The libvirt build process uses Meson build system. By default when the
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``meson`` is run from within a GIT checkout, it will turn on -Werror for
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builds. This can be disabled with --werror=false, but this is not
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recommended.
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To build & install libvirt to your home directory the following commands
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can be run:
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::
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$ meson build --prefix=$HOME/usr
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$ ninja -C build
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$ sudo ninja -C build install
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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 with
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normal OS vendor prefixes, use
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::
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$ meson build -Dsystem=true
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$ ninja -C build
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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 run
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libvirt directly from the source tree. For example to run a privileged
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libvirtd instance
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::
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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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It is also possible to run virsh directly from the build tree using the
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./run script (which sets some environment variables):
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::
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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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