This is nicer than adding -Wall and gives users more control.
Add -Wno-unused-parameter for now as there are lot of places where
this would need to be changed and it is reasonable in most cases.
Add -Wno-pedantic because it conflicts with
g_signal_handlers_disconnect_*
It seems that meson will not always apply the CFLAGS as defined through
the environment if "c_args=" is used in the default_options array for
the project() call.
Switching to add_project_arguments solves this problem.
See https://github.com/mesonbuild/meson/issues/8037
In case we're using an old polkit version that does not support
auto-pointers, we need to re-define such functions manually or fprintd
won't compile.
Given that polkit doesn't provide us version informations in headers we
need to get that from pkg-config
Fprintd is dependent on the deprecated dbus-glib, also this doesn't provide
various features we can take advantage of, like the ones for async
authentication mechanism.
So, remove all the dbus-glib dependencies and simplify the code, but without
any further refactor, and keeping everything as it used to work, while this
will give room for further improvements in subsequent commits.
Internally, we just use dbus-codegen to generate the skeletons, and we
use the generated FprintdDBusManager with composition, while we
implement the device skeleton interface in FprintDevice, so that we
don't have to use it as a proxy, and keep being closer to what it used
to be with dbus-glib.
Fixes: #61
Make possible to run tests with address sanitizer to quickly check for
memory errors, although we have to disable the error exit code in case of
leaks because we have some which are due to something else down in the stack
(and LSAN suppression files doesn't allow to define the stack to ignore
as we can in valgrind).
However, we'd abort in case of memory errors anyways, so this still helps
to prevent major problems, while still logging the leaks.
In order to run pam module tests with ASAN we need to manually pass the
library to LD_PRELOAD, as we do for the wrapper.
Meson supports checking for default arguments natively without having to
do this for each one, so just use this feature.
Not doing this will become a warning as per meson 0.52.0 [1].
[1] https://github.com/mesonbuild/meson/pull/5627
