anchor.diff:    });
   
     # The Haddock phase fails for one reason or another.
  -  bytestring-progress = dontHaddock super.bytestring-progress;
     deepseq-magic = dontHaddock super.deepseq-magic;
     feldspar-signal = dontHaddock super.feldspar-signal; # https://github.com/markus-git/feldspar-signal/issues/1
     hoodle-core = dontHaddock super.hoodle-core;
  
positive.code: 
    # Test suite depends on source code being available
    simple-affine-space = dontCheck super.simple-affine-space;
  
    # https://github.com/kazu-yamamoto/simple-sendfile/issues/17
    simple-sendfile = dontCheck super.simple-sendfile;
  
    # Fails no apparent reason. Upstream has been notified by e-mail.
    assertions = dontCheck super.assertions;
  
negative.code:   # check requires mysql server
    mysql-simple = dontCheck super.mysql-simple;
    mysql-haskell = dontCheck super.mysql-haskell;
  
    # The Hackage tarball is purposefully broken, because it's not intended to be, like, useful.
    # https://git-annex.branchable.com/bugs/bash_completion_file_is_missing_in_the_6.20160527_tarball_on_hackage/
  