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Diffstat (limited to 'mcon/U/d_wait4.U')
| -rw-r--r-- | mcon/U/d_wait4.U | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/mcon/U/d_wait4.U b/mcon/U/d_wait4.U new file mode 100644 index 0000000..64e1d02 --- /dev/null +++ b/mcon/U/d_wait4.U @@ -0,0 +1,52 @@ +?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_wait4.U,v $ +?RCS: Revision 3.0 1993/08/18 12:08:01 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:d_wait4: Trylink cat i_sysresrc i_syswait +?MAKE: -pick add $@ %< +?S:d_wait4: +?S: This variable conditionally defines the HAS_WAIT4 symbol, which +?S: indicates the wait4() routine is available. +?S:. +?C:HAS_WAIT4 (WAIT4): +?C: This symbol, if defined, indicates that wait4() exists. +?C:. +?H:#$d_wait4 HAS_WAIT4 /**/ +?H:. +?LINT:set d_wait4 +: see if there is a wait4 +$cat >try.c <<EOC +#include <sys/types.h> +#$i_syswait I_SYS_WAIT +#ifdef I_SYS_WAIT +#include <sys/wait.h> +#endif +#$i_sysresrc I_SYS_RESOURCE +#ifdef I_SYS_RESOURCE +#include <sys/resource.h> +#endif +int main(void) +{ + static pid_t ret, pid; + static int status, options; + static struct rusage ru; + options |= WNOHANG; + options |= WUNTRACED; + ret |= wait4(pid, &status, options, &ru); + return ret ? 0 : 1; +} +EOC +cyn=wait4 +set d_wait4 +eval $trylink + |