i-score cmake successful but build fails without midi support

[disassembler]

Packaging this for NixOS. I didn't realize I was missing alsaLibs, and the only output I got in the build was when linking i-score it couldn't find ossia::net::midi classes. After adding alsaLibs it compiled fine. It would be nice if cmake would output the missing library preventing ModernMidi from being built-in to OSSIA.

[jcelerier]

interesting, I would have thought that it would be erroring (or at the very least not build the midi parts at all ; i-score may be used in environments without MIDI support at all so the build should not error in this case).