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Re: autoconf 2.57b: locking fails over NFS
From: |
Andreas Schwab |
Subject: |
Re: autoconf 2.57b: locking fails over NFS |
Date: |
Wed, 24 Sep 2003 23:28:33 +0200 |
User-agent: |
Gnus/5.1002 (Gnus v5.10.2) Emacs/21.3.50 (gnu/linux) |
Paul Eggert <address@hidden> writes:
> Andreas Schwab <address@hidden> writes:
>
>> On some systems (eg. Linux) flock(2) does not work over network, but Perl
>> prefers that over fcntl(2) if it exists. So autoconf may fail on NFS if
>> the filesystem has been mounted with locking enabled.
>
> Thanks. What error code does flock return in that case?
It returns ENOLCK ("No locks available").
> Perhaps we can detect that particular failure, and try fcntl instead.
Note that flock is a generic perl interface that may be implemented with
flock(2) or fcntl(2) or lockf(3), depending on what is available on the
host. See perlfunc(1).
Andreas.
--
Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
- autoconf 2.57b: locking fails over NFS, Andreas Schwab, 2003/09/24
- Re: autoconf 2.57b: locking fails over NFS, Akim Demaille, 2003/09/25
- Re: autoconf 2.57b: locking fails over NFS, Andreas Schwab, 2003/09/25
- Re: autoconf 2.57b: locking fails over NFS, Paul Eggert, 2003/09/25
- Re: autoconf 2.57b: locking fails over NFS, Alexandre Duret-Lutz, 2003/09/25
- Re: autoconf 2.57b: locking fails over NFS, Paul Eggert, 2003/09/25
- Re: autoconf 2.57b: locking fails over NFS, Alexandre Duret-Lutz, 2003/09/26
- Re: autoconf 2.57b: locking fails over NFS, Paul Eggert, 2003/09/26
- Re: autoconf 2.57b: locking fails over NFS, Alexandre Duret-Lutz, 2003/09/29