detect asound (#818) #591

Job	Run time
build (ubuntu-latest, Dockerfile, amd64)	1s
build (ubuntu-latest, Dockerfile.rpi, armv7l, https://downloads.sourceforge.net/project/raspberry...	31m 53s
build (ubuntu-latest, Dockerfile.rpi, armv6l, https://downloads.sourceforge.net/project/raspberry...	1s
build (ubuntu-latest, Dockerfile.arm64, arm64, arm64v8/ubuntu)	31m 53s
build (windows-2022, Dockerfile.windows, windows)	26m 28s
multiarch	0s
	1h 30m 16s

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