Crunch: chicken-install fails (process-output-port missing)

Hi

I try to work with the latest sources from chicken-crunch. First I’ve installed the latest chicken 6 code from the git repo and then I got the lastest from the svn repo. But I cannot install crunch with  `chicken-install` from the fresh chicken 6 installation.

```
~/Builds/chicken-crunch/chicken-crunch/bin/chicken-install
….
….chicken-crunch/crunch/trunk/crunch.compiler.debug.so

Error: Module `crunch.compiler.debug' has unresolved identifiers
  In file `crunch.compiler.debug.scm':

  Unknown identifier `process-input-port'
    In procedure `connect-to-debugger' on line 353

  Unknown identifier `process-output-port'
    On line 355
```

When I comment out all the references to the ‘debug’ stuff, the the build works. So I guess the line the question basically is:  (import (crunch compiler debug)). This import doesn’t seem to work as it should

Ben