This adds three meson options to enable or disable building daemon, tools, and modules.
Building the daemon or tools depends on building the modules, and disabling modules without disabling
the other two will result in meson giving an appropriate error.
These new options will let users skip building and installing unneeded items when they are not needed,
e.g. when only using the C API in another application.
This copies the logic of media-session's logind module and allows
the bluez monitor to be active in only one user session at a time.
This is especially useful to avoid interference between the gdm
session and the actual user session, which momentarily both have
wireplumber running when logging in/out.
Fixes#54
It's useful downstream to be able to control building
tests, as there's not much use building them if we're
not going to run them.
Signed-off-by: Sam James <sam@gentoo.org>
On Exherbo we allow to install different Lua ABIs in parallel and
users can choose per-package which Lua ABI to use, e.g.
media/wireplumber LUA_ABIS: -* 5.3
However, wireplumber's build system doesn't provide a way of explicitly
requesting a specific version, which makes the build non-deterministic,
since you get a different result if you install today with Lua 5.3
installed and reinstall tomorrow after installing Lua 5.4.
To fix this, I introduced a `system-lua-version` option that allows to
specify an explicit Lua version to check for and build against:
> $ meson .. -Dsystem-lua=true -Dsystem-lua-version=5.4
> The Meson build system
> Version: 0.58.0
> Source dir: /mnt/development/scm/freedesktop/wireplumber
> Build dir: /mnt/development/scm/freedesktop/wireplumber/build/reconfigure
> Build type: native build
> Project name: wireplumber
> Project version: 0.4.1
> [...]
> Run-time dependency lua-5.4 found: YES 5.4.3
> [...]
> Build targets in project: 56
>
> wireplumber 0.4.1
>
> Lua version : 5.4.3 (system)
> systemd conf data : YES
If the specified version isn't found, the build will fail loudly:
> $ meson .. -Dsystem-lua=true -Dsystem-lua-version=5.5
> [...]
> Found CMake: /usr/host/bin/cmake (3.20.5)
> Run-time dependency lua-5.5 found: NO (tried pkgconfig and cmake)
> Run-time dependency lua5.5 found: NO (tried pkgconfig and cmake)
>
> ../meson.build:50:6: ERROR: Problem encountered: Specified Lua version "5.5" not found
By default system-lua=false, so the bundled version is built.
The default_library for the lua subproject is also set to static
now, so that we don't need to install liblua and mess up the system.
For existing build trees, this needs to be switched manually now with
-Dlua:default_library=static (or just wipe the build dir and start clean)
