Hi I had a look at haskell-streaming-common and the test that fails is Data.Streaming.Filesystem getFileType other (defined in file test/Data/Streaming/FilesystemSpec.hs Now I don't know Haskell at all, but it seems to me that what is failing there is the haskell function createNamedPipe which uses mkfifo. Is there any known limitations to mkfifo on hurd that might be causing this test to fail? Cheers, Oli