if (mkdir_ret != 0) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj("failed", -1));
		return(TCL_ERROR);
	};
	return(TCL_OK);
}

# Return error on NULL
tcc4tcl::cproc test4 {int v} char* {
	if (v == 1) {
		return("ok");
	}

	return(NULL);
}

puts [test 1]
puts [test1 1]
puts [test3 1]
puts [::bob::test1 1]
puts [add [test 1] 1]
puts [test4 1]

catch {
	puts [mkdir "/"]
} err
if {$err != "failed"} {
	error "\[mkdir\] did not return the expected error"
}

catch {
	set v 0
	puts [test4 0]
	set v 1
} err
if {$err != "" || $v == 1} {
	error "\[test4\] did not return the expected error"
}