From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
To: Jay Foster <jay@systech.com>
Cc: tiwai@suse.de, alsa-devel@alsa-project.org
Subject: Re: ALSA 1.1.8 Release - POLLRDNORM undefined
Date: Thu, 10 Jan 2019 13:24:02 +0900 [thread overview]
Message-ID: <20190110042402.GA7696@workstation> (raw)
In-Reply-To: <24afbadf-7c52-1f1c-6fcd-45a1bf8a6657@systech.com>
Hi,
I'm an author of axfer.
On Tue, 08 Jan 2019 18:00:18 +0100, Jay Foster wrote:
> I am attempting to build the 1.1.8 release of alsa-utils and getting
> an error about POLLRDNORM (and others) undefined. This error comes
> from axfer/waiter-select.c. axfer/waiter-select.c includes
> "waiter.h", which includes "poll.h". This build is for a linux
> target.
> On Wed, 09 Jan 2019 17:22:36 +0100, Jay Foster wrote:
> > On 1/9/2019 3:10 AM, Takashi Iwai wrote:
> > > Which libc are you using? The POSIX man page (man poll.h) mentions
> > > POLLRDNORM defined there, at least, on my system with glibc 2.27.
> >
> > This is a legacy ARM product using glibc 2.9.
I'm sorry for the FTBFS but it's out of my notice to build with too-old glibc.
Here, a history of glibc for related events:
* glibc-2.9: 2008/11/13
* your version
* glibc-2.10: 2009/5/9
* support XPG7/POSIX-2008
* add '__USE_XOPEN2k8' for the avove
* glibc-2.19: 2014/2/7
* add '_DEFAULT_SOURCE' macro
* XPG7/POSIX-2008 is a default behaviour
* glibc-2.20: 2014/9/7
* obsolete '_BSD_SOURCE' and '_SYSV_SOURCE' macros
* glibc-2.28: 2018/8/1
* used my environment (Ubuntu 18.10)
The macros, POLLRDNORM and the others, seems to be defined officially in
POSIX-2008 and nowadays glibc supports POSIX-2008 as a default. This is
the reason that I've never faced your issue in my development period.
I guess it's the reason that nothing noted in man of poll(2) and
select(2).
I need a bit time to judge whether it's woth to support such old-glibc.
Just removal of the newly-introduced macros is a simple solution.
Thanks for your report
Takashi Sakamoto
next prev parent reply other threads:[~2019-01-10 4:24 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-08 17:00 ALSA 1.1.8 Release - POLLRDNORM undefined Jay Foster
2019-01-09 11:10 ` Takashi Iwai
2019-01-09 16:22 ` Jay Foster
2019-01-09 20:33 ` Takashi Iwai
2019-01-09 20:35 ` Takashi Iwai
2019-01-09 20:39 ` Jay Foster
2019-01-10 4:24 ` Takashi Sakamoto [this message]
2019-01-10 8:31 ` Jaroslav Kysela
2019-01-10 16:44 ` Jay Foster
2019-01-11 0:39 ` Takashi Sakamoto
2019-01-09 20:33 ` Jay Foster
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