import Your.Module ()
trick? That is, add empty parenthesis after your import?
This code is a binding to a library and depending on values this import is necessary or not. encodeDataspace :: Dataspace -> IO BS.ByteString encodeDataspace (Dataspace space_id) = withOutByteString $ \buf bufSz -> withInOut_ bufSz $ \ioBufSz -> withErrorCheck_ $ #if H5_VERSION_GE(1,12,0) # if H5Sencode_vers == 2 h5s_encode space_id buf ioBufSz h5p_DEFAULT # elif H5Sencode_vers == 1 h5s_encode space_id buf ioBufSz # else # error "H5Sencode_vers set to invalid value" # endif #else h5s_encode space_id buf ioBufSz #endif look at the h5p_DEFAULT which comes from the sus-named import. If I put () I think that when 5Sencode_vers == 2, the compilation failed... Fred