Re: Deprecation message in Arch Linux.

[Sven Joachim]

On 2019-08-28 10:19 -0700, Paul Eggert wrote:

> Ergus wrote:
>> In file included from ../../src/sound.c:78:
>> /usr/include/asoundlib.h:1:2: warning: #warning This header is
>> deprecated, use <alsa/asoundlib.h> instead. [-Wcpp]
>>     1 | #warning This header is deprecated, use <alsa/asoundlib.h> instead.
>> 
>> It shouldn't be an issue, but maybe we should fix it.
>
> Sounds like a problem with your Arch Linux configuration. The command:
>
> pkg-config --cflags "alsa >= 1.0.0"
>
> should output something like "-I/usr/include/alsa" so that the
> "#include <asoundlib.h>" grabs /usr/include/alsa/asoundlib.h instead
> of /usr/include/asoundlib.h. You might look into that, and if you
> still think it's an Emacs configure problem please file a bug report.

This was a deliberate change in alsa-lib 1.1.9, as "-I/usr/include/alsa"
is considered dangerous due to possible namespace conflicts[1].  Perhaps
Emacs' configure script should test for <alsa/asoundlib.h> first, and
only try <asoundlib.h> if that fails?  Right now it's done the other way
around.

Cheers,
       Sven


https://git.alsa-project.org/?p=alsa-lib.git;a=commit;h=fc0e54c3cc6ad48d12d2cdad18df4473c559a448