This is not a bug, and not a big problem but a missing file in latest installation of CerberusX v2018-12-30.
No problem for me, I just copy it from old version but for new user it must be disappointing.
Its actually, not about building audio app (mingw) but about CX cannot compile Html5.
It seem to me that cserver_winnt.exe need OpenAL32.dll to be running and its not there in bin folder or my windows system.
After I copy OpenAL32.dll to bin folder, everything ok. I check on past version OpenAL32.dll is there in bin folder
The above screen capture show there are no OpenAL32.dll in bin folder. If user PC don't have OpenAL32.dll in their system, the cserver_winnt.exe cannot run.