I recently upgraded my system to Ubuntu 20.04. Apparently, Ubuntu no longer provides Qt4, which makes it impossible to start the Spirit configuration software (3.0.0). (Qt4 was dropped from Debian:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=953294)
Code:
$ ./settings.sh
./settings-x86_64: error while loading shared libraries: libQtGui.so.4: cannot open shared object file: No such file or directory
$ ldd settings-x86_64 ✘
linux-vdso.so.1 (0x00007ffed3bcb000)
libQtGui.so.4 => not found
libQtNetwork.so.4 => not found
libQtCore.so.4 => not found
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f1a1bcb2000)
libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f1a1bad1000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f1a1b982000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f1a1b965000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f1a1b773000)
/lib64/ld-linux-x86-64.so.2 (0x00007f1a1bcec000)