?RCS: $Id: d_pthreadj.U,v $
?RCS:
?RCS: Copyright (c) 1998 Andy Dougherty
?RCS:
?RCS: You may distribute under the terms of either the GNU General Public
?RCS: License or the Artistic License, as specified in the README file.
?RCS:
?MAKE:d_pthreads_created_joinable: cat Compile rm usethreads Setvar i_pthread
?MAKE:	-pick add $@ %<
?S:d_pthreads_created_joinable:
?S:	This variable conditionally defines the PTHREADS_CREATED_JOINABLE
?S:	symbol if pthreads are created in the joinable (aka undetached) 
?S:	state.
?S:.
?C:PTHREADS_CREATED_JOINABLE:
?C:	This symbol, if defined, indicates that pthreads are created
?C:	in the joinable (aka undetached) state.
?C:.
?H:#$d_pthreads_created_joinable PTHREADS_CREATED_JOINABLE /**/
?H:.
?F:!try
?T:yyy
?LINT: set d_pthreads_created_joinable
: test whether pthreads are created in joinable -- aka undetached -- state
if test "X$usethreads" = "X$define" -a "X$i_pthread" = "X$define"; then
	echo "Checking whether pthreads are created joinable..." >&4 
	$cat >try.c <<'EOCP'
#include <pthread.h>
#ifdef PTHREAD_CREATE_UNDETACHED
#  define ATTR_JOINABLE PTHREAD_CREATE_UNDETACHED
#else
#  ifdef __UNDETACHED
#    define ATTR_JOINABLE __UNDETACHED
#  endif
#endif
#include <stdio.h>
int main() {
    pthread_attr_t attr;
    int detachstate;
    printf("%s\n",
	pthread_attr_init(&attr) == 0 &&
#if PTHREAD_ATTR_GETDETACHSTATE_INT
        pthread_attr_getdetachstate(&attr) == ATTR_JOINABLE &&
#else
        pthread_attr_getdetachstate(&attr, &detachstate) == 0 &&
        detachstate == PTHREAD_ATTR_JOINABLE
#endif
        ? "detached" : "joinable");
    exit(0);
}
EOCP
	set try
	if eval $compile; then
		yyy=`./try`
		case "$yyy" in
			detached) echo "No, they aren't." ;;
			*) echo "Yes, they are." ;;
		esac
	else
		set try -DPTHREAD_ATTR_GETDETACHSTATE_INT
		if eval $compile; then
			yyy=`./try`
			case "$yyy" in
				detached) echo "No, they aren't." ;;
				*) echo "Yes, they are." ;;
			esac
		else		
			echo " "
			echo "(I can't execute the test program--assuming they are.)" >&4
			yyy=joinable
		fi
	fi
	$rm -f try try.*
	case "$yyy" in
		detached) val="$undef" ;;
		*) val="$define" ;;
	esac
	set d_pthreads_created_joinable
	eval $setvar
else
    d_pthreads_created_joinable="$undef"
fi