pkg_add: no pkg found for 'osabi-NetBSD-9.0', sorry.
pkg_add: Can't install dependency osabi-NetBSD-9.0
pkg_add: 1 package addition failed
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$NetBSD: MESSAGE,v 1.1 2017/10/27 01:28:53 nat Exp $

To enable dma for use with NetBSD-8 or above.

Set the following environment variables:
	SDL_DSP_DMA_PRECISION
	SDL_DSP_DMA_FREQ
	SDL_DSP_DMA_CHANNELS

	SDL_DSP_NOSELECT=1

DMA parameters must match the hw virtual channel format for playback to
work with dma.

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