> use OpenBSD;
Cannot resolve caller protect(Lock:U: Block:D); none of these signatures match:
    (Lock:D: &code, *%_)

Cannot resolve caller protect(Lock:U: Block:D); none of these signatures match:
    (Lock:D: &code, *%_)

> pledge("stdio", "")
Cannot resolve caller protect(Lock:U: Block:D); none of these signatures match:
    (Lock:D: &code, *%_)
  in method create-optimized-call at /usr/local/share/perl6/sources/947BDAB9F96E0E5FCCB383124F923A6BF6F8D76B line 510
  in method CALL-ME at /usr/local/share/perl6/sources/947BDAB9F96E0E5FCCB383124F923A6BF6F8D76B line 566
  in block <unit> at <unknown file> line 1