I didn't forget about you! I did a release statically linked with qt5. Let me know if this works for you. Email me at kevin@segfault.fun if you run into any issues. Use prettyeq-static.
Oh, you need the qt5 shared libs to compile. I am planning to do a release in the next couple weeks that statically links the full thing so no one has to deal with this. Qt makes it very annoying to static link your project (you are stuck compiling Qt yourself), so been putting that off.
First try I got: equalizer/equalizer.pro:10: Parse Error ('pretty.h')
Then I removed the extra pretty.h line and got: ../../gui/prettyshim.h:4:10: fatal error: QObject: No such file or directory #include <QObject>
which is beyond my time to dig right now :/