SoundHw in Qemu no longer works about toaruos

[klange]

The README specifies its arguments are appropriate for Ubuntu 20.04, there is no issue with the README.

[klange]

Now the makefile convenience targets, on the other hand...

Okay, so, annoying, while you can do -device AC97 and this works without having to specify a backend, I can find no way to enable the PC speaker without one. -device isa-pcspk does not work because only "pluggable device types" can be attached with -device; the option to -M requires an audio dev, and there is no 'default' one that can be referenced by name, so you have to make one, and making one with -audio or -audiodev requires a backend. Ultimately, this will probably just mean having the Makefile pick one based on the host platform - coreaudio for macOS, pa for Linux, but it's still annoying.

It also seems like the QEMU devs intend to remove the idea of a "default" audio backend entirely, so in 9.x or 10.x there may be no option but to take a guess at what audio backend might be available...

This sort of removal of options that make it feasible to use the same command line across multiple environments is quite frustrating.