From mboxrd@z Thu Jan  1 00:00:00 1970
From: Yann E. MORIN <yann.morin.1998@free.fr>
Date: Sun, 17 Jul 2016 09:18:42 +0200
Subject: [Buildroot] [PATCH] package/systemd: import daemon needs
	headers >= 3.11
In-Reply-To: <87h9bo4uic.fsf@dell.be.48ers.dk>
References: <1468182896-8355-1-git-send-email-yann.morin.1998@free.fr>
 <87eg709ccd.fsf@dell.be.48ers.dk> <20160711202325.GB5122@free.fr>
 <87r3az6y58.fsf@dell.be.48ers.dk>
 <20160716142624.1e045c31@free-electrons.com>
 <20160716182856.GB3882@free.fr> <87h9bo4uic.fsf@dell.be.48ers.dk>
Message-ID: <20160717071842.GA3614@free.fr>
List-Id: <buildroot.busybox.net>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: buildroot@busybox.net

Peter, All,

On 2016-07-17 09:02 +0200, Peter Korsgaard spake thusly:
> >>>>> "Yann" == Yann E MORIN <yann.morin.1998@free.fr> writes:
>  > So, I built a toolchain with Linux headers 3.10 and glibc 2.18. And
>  > systemd-importd does not build:
> 
>  >     src/import/export-raw.c: In function 'reflink_snapshot':
>  >     src/import/export-raw.c:271:26: error: 'O_TMPFILE' undeclared (first use in this function)
>  >              new_fd = open(d, O_TMPFILE|O_CLOEXEC|O_NOCTTY|O_RDWR, 0600);
>  >                               ^
>  >     src/import/export-raw.c:271:26: note: each undeclared identifier is reported only once for each function it appears in
>  >     Makefile:16515: recipe for target 'src/import/systemd_export-export-raw.o' failed
> 
>  > O_TMPFILE was added in Linux 3.11; glibc added the corresponding
>  > definition in glib-2.19.
> 
>  >     glibc \ linux   | <= 3.10   | >= 3.11   |
>  >     ----------------+-----------+-----------+
>  >     <= 2.18         | No        | No*       |
>  >> = 2.19         | Yes       | Yes       |
> 
>  > *: headers 3.12
> 
>  > So, not sure where to go from there...
> 
>  > Note: I have not tested uClibc or musl, because,well, systemd depends on
>  > glibc...
> 
> I would just go for  >= glibc 2.19. People are unlikely to use old glibc
> with new kernel headers (and it cannot be built with buildroot).

So, should we add GLIBC_AT_LEAST_X_Y symbols?

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'