From owner-freebsd-hackers  Thu Oct 21  1:54:14 1999
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Date: Thu, 21 Oct 1999 10:37:08 +0200
From: Marcel Moolenaar <marcel@scc.nl>
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References: <19991020221929.B90211@daemon.ninth-circle.org>, <19991020182247.A71414@dan.emsphone.com>
Subject: Re: soundcard.h
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Dan Nelson wrote:
> 
> In the last episode (Oct 20), Jeroen Ruigrok/Asmodai said:
> > just been messing with some more include files and I am curious about
> > something.
> >
> > [Note: CURRENT system]
> >
> > I have a soundcard.h in both include/sys and include/machine.
> >
> > Which should have preference over the other, why does one simply not
> > include the other.  In other words, why two _exactly_ the same files?
> 
> Actually on my system it's a symlink.  My guess is that some committer
> was sick of patching every Linux app from <sys/soundcard.h> to
> <machine/soundcard.h>.

soundcard.h has been moved by Peter from machine/ to sys/. A commit logs
tells us:

\begin{quote}
<machine/soundcard.h> -> <sys/soundcard.h>, since it's an exported API
that's arch neutral and OSS API and Linux API compatable.
\end{quote}

The link is to prevent breakages. Use #include <sys/soundcard.h> in new
source code.

-- 
Marcel Moolenaar                        mailto:marcel@scc.nl
SCC Internetworking & Databases           http://www.scc.nl/
The FreeBSD project                mailto:marcel@FreeBSD.org


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