The .include meta command already supports specifying a directory and when including a directory, all files with the extension '.pa' in that directory will be parsed in alphabetical order.
This feature can be used to add support for default.pa.d directory, so that packages for other applications or users can just drop in a file for configuration without changing the default.pa which is shipped.
We use the PA_DEFAULT_CONFIG_DIR for this, however, since meson quotes this build variable, introduce an unquoted version for this purpose and use it with .include.
45abd0b43 Add default.pa.d folder support
configure.ac | 1 +
meson.build | 1 +
src/daemon/default.pa.in | 5 +++++
src/daemon/system.pa.in | 5 +++++
4 files changed, 12 insertions(+)