`sbasicg` can't render any graphical programs

I compiled the latest code on MSYS2 CLANG64. The program sbasicg.exe is compiled fine but I quickly realized that I can't run any graphical programs (for example, 3dtorus.bas) with sbasicg -r. A new window will launch but it will display nothing but a grey background. I can run console program just fine, though.

Update: This is my foolish mistake. Everything is fine. I don't know that I need to include the extension .bas. Without the extension .bas, it will be like what I described.