So, I'm working on this libsass CMOD glue (a totally new world for me) and have a question:

From the CMOD a callback in the Pike layer is called. If the Pike layer callback throws an error, how do I detect that in the CMOD? 

As it is now the error is thrown in the Pike layer and the backtrace is output to the console, but the C code after the callback still continues. 

How do I prevent this?