Is it possible to manually exit out of Smalltalk vm with return code?

Basically, is there some kind of analogue of exit(-1) function in GNU Smalltalk 3.2.5? Or is there a way to configure it so that if it encounters an error during execution it'd return non-zero exit code? I want to be able to detect if gst executed the st code file successfully or if an error (syntax or runtime/exception) occurred.