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Diffstat (limited to 'mcon/U/d_shmctl.U')
| -rw-r--r-- | mcon/U/d_shmctl.U | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/mcon/U/d_shmctl.U b/mcon/U/d_shmctl.U new file mode 100644 index 0000000..555d4af --- /dev/null +++ b/mcon/U/d_shmctl.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_shmctl.U,v $ +?RCS: Revision 3.0 1993/08/18 12:07:18 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:d_shmctl: Trylink cat +?MAKE: -pick add $@ %< +?S:d_shmctl: +?S: This variable conditionally defines the HAS_SHMCTL symbol, which +?S: indicates to the C program that the shmctl() routine is available. +?S:. +?C:HAS_SHMCTL: +?C: This symbol, if defined, indicates that the shmctl() routine is +?C: available to perform shared memory control operations. +?C:. +?H:#$d_shmctl HAS_SHMCTL /**/ +?H:. +?LINT:set d_shmctl +: see if shmctl exists +$cat >try.c <<EOC +#include <sys/shm.h> +int main(void) +{ + static int ret, id; + static struct shmid_ds *buf; + ret |= shmctl(id, IPC_STAT, buf); + ret |= shmctl(id, IPC_SET, buf); + ret |= shmctl(id, IPC_RMID, buf); + return ret ? 0 : 1; +} +EOC +cyn=shmctl +set d_shmctl +eval $trylink + |