Add a new build option 'system-user-unit=dir', which can be used to
override the pkg-config default value.
By doing this, it becomes more practical to make a local unprivileged
build of the latest PipeWire:
$ meson --prefix=~/.local build
$ meson configure build -Dpipewire-alsa=false
$ meson configure build -Dsystemd-user-unit-dir=~/.config/systemd/user
$ meson configure build -Dudevrulesdir="`mktemp -d`"
$ ninja -C build install
For a local build enabling ALSA plugins is not plausible.
JACK needs a simple addition to the ~/.profile:
export LD_LIBRARY_PATH=$HOME/.local/lib/x86_64-linux-gnu/pipewire-0.3/jack
Finally, the genuine PulseAudio must be masked and local services
enabled:
systemctl --user enable pipewire.socket
systemctl --user enable pipewire-pulse.socket
systemctl --user mask pulseaudio.service
A sanity check [*] shows that nothing has leaked out of the home
directory (even though at least on my Debian 10 system PolKit still
asks for authorization during the meson build).
Not perfect, but lowers a barrier to run the development version a lot,
as that does not anymore to trash your system.
[*] find / -name "*pipewire*" \! -path "/home/*" \! -path "/var/lib/flatpak/*" 2> /dev/null
Signed-off-by: Jarkko Sakkinen <jarkko@suppilovahvero.lan>
Add a small application that loads the pulse server and makes it
listen on the pulseaudio socket.
Add some systemd activation files to start the service.
On NixOS all packages are installed into their own immutable prefix.
Because of this get_pkgconfig_variable will return a
path from within systemd's prefix and we cannot write to it.
By using define_variable we can replace the respective directory
to be from the paths from meson.
Don't recurse into the directory of systemd when it was not found.
There are still some issues because libudev is actually provided
by systemd these days and we still need that for building the v4l2 and
alsa monitors.
