[Pharo-users] How to see output of printf invocations in VM plugins

I'm wondering where the output of printf invocations in Mac VM plugins gets written to? I'd like to see the value of 'status' that gets printed in the following line in the Mac SSL plugin: https://code.google.com/p/squeakssl/source/browse/src/Mac%20OS/sqMacSSL.c#38... I (think I) know how to configure 'ssl->loglevel' so that the printf invocation is done, I just don't know how to see the output.