Currently, rsync is an unconditional dependency and checked during
meson configure. As such, the build will fail if rsync is not installed
which is probably not what was intended here.
Meson will automatically insert the appropriate dependencies on
targets and files listed in this keyword [the command] argument.
This commit fixes the unconditional dependency on rsync with an explicit
find_program invocation with required: false. Also wrap the
custom_target in an if statement since it is not allowed to use
non-found external programs in command.
Currently, rsync is an unconditional dependency and checked during
meson configure. As such, the build will fail if rsync is not installed which is probably not what was intended here.From the meson documentation:
This commit fixes the unconditional dependency on rsync with an explicit find_program invocation with
required: false. Also wrap the custom_target in an if statement since it is not allowed to use non-found external programs incommand.