Someone recently tried pkgsrc on SCO OpenServer5. I'm pretty new so I haven't heard of these operating systems before. It was an interesting experience.
pkgsrc/bootstrap/README.OpenServer5 has the instructions. You start with the all-shiny GCC 2.99.3, patched. then use it to build a patched GCC 4.2, which is the last version to support SCO/x86. (GCC 4.8 is almost the minimum version for an acceptable pkgsrc experience, as C++11 is pretty widespread) After the GCC hurdle, be sure to replace rm with a version that supports deleting files over 2GB. when I looked up what is wrong with it, I found this remarkable response, suggesting that for the sake of compatibility, it shouldn't be fixed, or anything, ever. http://lists.celestial.com/pipermail/sco-misc/2007-September/010474.html (Spoiler alert from the next message: it wasn't because of compat) So, it's not just SCO, but that was my first impression of the system. I find it really hard to believe this system can run anything currently useful.
