diff options
| author | Manoj Srivastava <srivasta@debian.org> | 2008-05-30 12:42:47 -0700 |
|---|---|---|
| committer | Manoj Srivastava <srivasta@debian.org> | 2008-05-30 12:42:47 -0700 |
| commit | ceb3507a8fca872770b3dcd7e5c5b36179ab95b0 (patch) | |
| tree | b46b4e25cfff5f4c13a330b8428ceed343e3796c /mcon/U/d_flock.U | |
Import dist_3.5-236.orig.tar.gz
[dgit import orig dist_3.5-236.orig.tar.gz]
Diffstat (limited to 'mcon/U/d_flock.U')
| -rw-r--r-- | mcon/U/d_flock.U | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/mcon/U/d_flock.U b/mcon/U/d_flock.U new file mode 100644 index 0000000..76d20c2 --- /dev/null +++ b/mcon/U/d_flock.U @@ -0,0 +1,44 @@ +?RCS: $Id$ +?RCS: +?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi +?RCS: +?RCS: You may redistribute only under the terms of the Artistic License, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic License; a copy of which may be found at the root +?RCS: of the source tree for dist 4.0. +?RCS: +?RCS: $Log: d_flock.U,v $ +?RCS: Revision 3.0 1993/08/18 12:06:05 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:d_flock: Trylink cat +?MAKE: -pick add $@ %< +?S:d_flock: +?S: This variable conditionally defines HAS_FLOCK if flock() is +?S: available to do file locking. +?S:. +?C:HAS_FLOCK (FLOCK): +?C: This symbol, if defined, indicates that the flock routine is +?C: available to do file locking. +?C:. +?H:#$d_flock HAS_FLOCK /**/ +?H:. +?LINT:set d_flock +: see if flock exists +$cat >try.c <<EOC +#include <sys/file.h> +#include <fcntl.h> +int main(void) +{ + static int fd, ret; + ret |= flock(fd, LOCK_SH); + ret |= flock(fd, LOCK_EX); + ret |= flock(fd, LOCK_UN); + return ret ? 0 : 1; +} +EOC +cyn=flock +set d_flock +eval $trylink + |