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Date: Wed, 5 Aug 2015 07:11:45 -0700
From: Navdeep Parhar <nparhar@gmail.com>
To: Pratik Singhal <ps06756@gmail.com>
Cc: freebsd-hackers <freebsd-hackers@freebsd.org>,
 FreeBSD Questions <freebsd-questions@freebsd.org>
Subject: Re: Compilation error due to header not found
Message-ID: <20150805141145.GA21009@ox>
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 freebsd-hackers <freebsd-hackers@freebsd.org>,
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On Wed, Aug 05, 2015 at 06:13:03PM +0530, Pratik Singhal wrote:
> Hello all, I have used the file "dev/sound/pcm/sound.h" in a kernel driver
> made for ac97 codec for Allwinner A10. This file further includes the file
> "dev/sound/pcm/channel.h" which further includes the file "channel_if.h".
> 
> I have checked in  ~HEAD and the file channel_if.h doesn't exist in that
> particular directory and as a result, I am getting a compilation error when
> I compile the kernel complaining about the missing file "channel_if.h" .
> 
> How can I resolve this error ?

There is a channel_if.m in the tree.  The build system should be able to
create channel_if.h from that if you list channel_if.h in SRCS in your
Makefile.

Regards,
Navdeep