Public issues
  https://github.com/mackron/miniaudio/issues/877
  https://github.com/mackron/miniaudio/issues/881

This is from c89atomic which has been fixed upstream.

Public issue https://github.com/mackron/miniaudio/issues/833

fix typos

Public issue https://github.com/mackron/miniaudio/issues/841

Public issue https://github.com/mackron/miniaudio/issues/836.

This adds the following flags:

  * MA_SOUND_FLAG_LOOPING
  * MA_RESOURCE_MANAGER_DATA_SOURCE_FLAG_LOOPING

These can be used to initialize sounds and resource managed data
sources to loop by default. This is the recommended way to enable
looping for streams. The `isLooping` config option in
`ma_sound_config` and `ma_resource_manager_data_source_config` has been
deprecated. If you are using those, you should switch to the new flag
or else you'll get compiler errors when upgrading to a future version.

Public issue https://github.com/mackron/miniaudio/issues/811

When processing a node, miniaudio will read into a temporary buffer
before mixing input attachments. This commit removes the per-node heap
allocation and replaces it with a per-graph stack. This should result
in less memory usage at larger scales, but at the expense of slightly
more usage at smaller scales.

The size of the stack can be configured via ma_node_graph_config. If
ma_engine is being used, it can be done via ma_engine_config.