I can confirm the same issues when building from trunk: s7_NIL indeed no longer exists; switching to s7_nil fixes the compilation error in Scheme.cpp. JUCE has dropped String::compareLexicographically; replacing it with compareNatural() seems to be the correct modern equivalent and works fine here as well. Good catch on src/Transport.h being marked executable — that’s easy to miss since svn diff won’t flag permission changes. It feels a bit like debugging Escape Road: everything looks fine at first,...