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To: rct@gherkin.frus.com (Bob_Tracy(0000))
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.5.55+: soundcore: Unknown symbol errno
From: Raja R Harinath <harinath@cs.umn.edu>
Date: Sat, 11 Jan 2003 14:43:22 -0600
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Hi,

rct@gherkin.frus.com (Bob_Tracy(0000)) writes:

> I'm getting the subject error message with ALSA for both 2.5.55 and
> 2.5.56.  The culprit appears to be the very last patch in the 2.5.55
> patch set, which deletes "static int errno;" from
> linux/sound/sound_firmware.c.  The undefined reference to errno is
> from the include of <linux/unistd.h>.

Try compiling soundcore in-kernel (everything else can be modular).

The "problem" appears to be that 'errno' in lib/errno.c is not
EXPORT_SYMBOLed.  The "static int errno;" in sound_firmware.c was most
definitely a bug, especially since it conflicts with the "extern int
errno;" in linux/unistd.h.

- Hari
-- 
Raja R Harinath ------------------------------ harinath@cs.umn.edu
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