Sorry for my poorly worded questions, I have carefully read the whole thread 3 times now. I am mostly trying to figure out where things are currently, and what can be expected to work. One thing I do not really understand is the relationship between the lib and app. I believe it use to exist to get around the limitations of the iar free compiler, but as the source is closed I can agree with your point about it not being worth much effort. What I don’t understand is why this is still an issue in the gcc world. Is the current source set assuming the existence of this lib? I am guessing that it is still required, but is there another version I should be loading or compiling against? I was trying to get a version I could build and load. In my case all the PC I have are amd64s and the dfuse demo does not run on them. So I am happy to have something I can run at home. I have ubuntu and macs at home at the moment, plus an old amd64 xp box. I was just trying to load a run a version I could build. I can now load images with your great work, but if I load the current dsonano git tree it does not run. I still see Benf stuff and it does not work. If I reload the benf 3 app it does work so I am guessing I need to load a different library, but I thought that the need for the library had gone away. So I got lost. Which library does the current git tree assume? I fully agree with your analysis and I am hoping to support this effort. If there still is a library required for the current tree, which one is it? I am assuming it is a closed source, because if it weren’t why would it still exist and not be a part of the current dsonano tree?