if (!defined &_LOCK_H_) {
    eval 'sub _LOCK_H_ {1;}';
    eval 'sub NCPUS {1;}';
    if (defined &vax) {
    }
    else {
	if (defined &ns32000) {
	}
	else {
	}
    }
    if ( &NCPUS > 1) {
    }
    else {
	eval 'sub simple_lock {
	    local($l) = @_;
	    eval "";
	}';
	eval 'sub simple_lock_init {
	    local($l) = @_;
	    eval "";
	}';
	eval 'sub simple_lock_try {
	    local($l) = @_;
	    eval "(1)";
	}';
	eval 'sub simple_unlock {
	    local($l) = @_;
	    eval "";
	}';
    }
    eval 'sub lock_read_done {
        local($l) = @_;
        eval " &lock_done($l)";
    }';
    eval 'sub lock_write_done {
        local($l) = @_;
        eval " &lock_done($l)";
    }';
}
1;