Make sure all projects are buildable

[karlredman]

• [ ] cond-var
• [ ] CPP_Examples
• [ ] FCMS
• [ ] karlredman.github.io
• [ ] MyGtkCID
• [ ] POSIX_Timers
• [ ] PragmaAlign
• [ ] PyDL
• [ ] RATS
• [ ] run-free
• [ ] stg-test
• [ ] VariousCodingExamples