The directive mentioned in the comment was removed in:

commit 326c6802e49e5499e16cf141e1cdb0360fce14aa
Author: Riku Voipio <riku.voipio@linaro.org>
Date:   Fri Feb 7 15:38:58 2014 +0200

    alsa-lib: heavy pcm atomics cleanup

    The following patch comes from the realization that at least ARM code
    for atomics is quite broken and nobody has cared for a decade.

    A quick dive shows that only snd_atomic_{read,write}_{begin,end}
    appear to be used widely. These are implemented using wmb/rmb.

    Only other use of atomic functions is in pcm_meter.c.
    The #SND_PCM_TYPE_METER plugin type appears rarely, if ever, used.
    I presume these days anyone who wants a meter/scope will do in pulseaudio
    layer instead of alsa.

    It would seem better fit to have pcm_meter in alsa-plugins instead
    of alsa-lib, but I guess that would be an ABI break...

    So instead, I'm proposing here

    1. Removal of all hand-crafted atomics from iatomic.h apart from barriers,
       which are used in snd_atomic_{read,write}_{begin,end}.

    2. Using __sync_synchronize as the default fallback for barriers. This
       has been available since gcc 4.1, so it shouldn't be a problem.

    3. Defining the few atomics used by pcm_meter.c withing pcm_meter.c
       itself, using gcc atomic builtins[1].

    4. Since gcc atomic builtins are available only since gcc 4.7, add a check for
       that in gcc configure.in, and don't build pcm meter plugin if using
       older gcc.

    The last point has the impact, that if there actually is someone who 1)
    uses the meter plugin 2) wants to upgrade to 2014 alsa-lib 3) but
    does not want to use a 2012+ gcc - that someone will be inconvenienced.

    Finally remove the unneeded configure check for cpu type. We can
    trust the gcc to set right flags for us.

    [1] http://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html

    Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Changelog:
http://www.alsa-project.org/main/index.php/Changes_v1.1.1_v1.1.2

The FFT code in alsabat changed from double precision to single
precision floating point numbers, which is why the fftw dependency
changed to fftwf.

Signed-off-by: Tanu Kaskinen <tanuk@iki.fi>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Changelog:
http://www.alsa-project.org/main/index.php/Changes_v1.1.1_v1.1.2

Removed upstreamed patch:
0001-pcm_plugin-fix-appl-pointer-not-correct-when-mmap_co.patch

Rebased avoid-including-sys-poll.h-directly.patch

Signed-off-by: Tanu Kaskinen <tanuk@iki.fi>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

The bat PACKAGECONFIG does not install the test script correctly. Fix
this by following the packaging used for the other bash scripts. While
at it, fix some tabs.

Signed-off-by: Stefan Müller-Klieser <s.mueller-klieser@phytec.de>
Signed-off-by: Ross Burton <ross.burton@intel.com>

Signed-off-by: Stefan Müller-Klieser <s.mueller-klieser@phytec.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Changelog: http://alsa-project.org/main/index.php/Changes_v1.1.0_v1.1.1

Removed upstreamed patch
0001-pph-include-config.h-from-rate_speexrate.c.patch.

Signed-off-by: Tanu Kaskinen <tanuk@iki.fi>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Changelog:
http://alsa-project.org/main/index.php/Changes_v1.1.0_v1.1.1

alsabat has now a "standalone" mode, in which analysis with libfftw is
not needed. Therefore, it's now possible to enable alsabat without
fftw. However, there's no way to explicitly tell the configure script
to enable alsabat, but disable fftw. Without support for explicit
request to disable fftw, fftw would become a floating dependency,
which is why the recipe still only supports the "disable alsabat" and
"enable alsabat with fftw" options.

Dropped 0001-alsabat-rename-to-avoid-naming-conflict.patch (it's
included in the new release).

Signed-off-by: Tanu Kaskinen <tanuk@iki.fi>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Release notes:
http://alsa-project.org/main/index.php/Changes_v1.1.0_v1.1.1

Dropped upstreamed patch
0001-topology-Add-missing-include-sys-stat.h.patch.

Updated "Upstream-Status" of accepted patch
0001-pcm_plugin-fix-appl-pointer-not-correct-when-mmap_co.patch.

Rebased avoid-including-sys-poll.h-directly.patch.

Signed-off-by: Tanu Kaskinen <tanuk@iki.fi>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

The old bug tracker is defunct.

Signed-off-by: Tanu Kaskinen <tanuk@iki.fi>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bb.utils.contains was spread over multiple lines
collapse it into single line, make it more readable

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>