Missing dependency for build.sh to succeed

[muhgatus]

I tried to build ultraschall, but it failed with a wall of text. I did this step by step to discover the missing dependencies. I guess you could put them somewhere or integrate those as requirement checks with better output to your build chain.

In short: This either needs to go into the documentation or into the cmake preconditions to be checked (or at least somebody can find it here).

Sub component soundboard
Configuring Ultraschall Soundboard...

List of missing dependencies on Ubuntu 20.04.3

• libxcursor-dev
• libfreetype6-dev
• libasound2-dev

After installing those, the build process was successful :)