Re: [SoX-users] How DO you build with alsa?

[Chris B. <ch...@cn...>]

On Sun, Nov 21, 2004 at 06:08:04PM -1000, Jimen Ching wrote:
> I wonder if there's a cleaner way of checking for ALSA.  I noticed that
> alsa-lib keeps its own asound.h header file.  This looks suspiciously like
> glibc (maintaining its own kernel headers). 

Off hand, I think I prefer possible compile failures over trying to debug user
reports that may be sox bugs or may be incompatible asound.h header files
without any way of knowing the difference.

> I've downloaded the alsa-lib source code and took a look at how it
> re-solved this __user/__kernel problem.  In version 1.0.6, the asound.h
> file doesn't use either of these macros.  Which version are you using?

My sound/version.h says 1.0.6 but this is from the 2.6.9 kernel.org kernel.
Also, Fedora Core 3 has same kernel and problems. Both asound.h's include
at least a reference to __user that is failing to compile.

So it sounds like alsa-lib just has a non-kernel version of asound.h
that they've stripped out the __user and __kernel references?
For now, my hack to define __user and __kernel to nothing seems
reasonable (same outcome as keeping a local copy of asound.h anyways).

BTW, I getting ready to modify play.in so that it understands that
OSS and/or ALSA is compiled in and then selects the appropriate
driver (giving preference to ALSA if both exist).  See any issues with
doing this?

Chris