?RCS: $Id: Sendfile64.U 7637 2004-12-28 15:29:06Z rmanfredi $
?RCS:
?RCS: @COPYRIGHT@
?RCS:
?MAKE:Sendfile64: Largefile d_sendfile i_syssendfile cc ccflags ldflags rm cat
?MAKE:	-pick add $@ %<
?LINT:change i_syssendfile d_sendfile
: determine whether sendfile works with 64-bit file support
echo " "
case "$i_syssendfile" in
"$define")
	echo "Checking whether we can use sendfile() with large file support..." >&4
	$cat >try.c <<'EOC'
#include <sys/sendfile.h>
int main(void)
{
	return 0;
}
EOC
	if $cc $ccflags $ldflags -o try try.c >/dev/null 2>&1; then
		echo "It looks like we can use sendfile()."
	else
		echo "Sorry, I'll have to disable sendfile()."
		i_syssendfile="$undef"
		d_sendfile="$undef"
	fi
	$rm -f try try.c
	;;
*)
	echo "No <sys/sendfile.h>, sendfile() should be safe with large files." >&4
	;;
esac