Phil,
I ran into problems using lambda expressions as callbacks when wrapping libcsv and I've boiled it down to this testcase. Can anybody tell me why this crashes?: ... looper is a c function which takes a scheme lambda and repeated invokes it using the 'call_lambda' bridging function.
When I gsc compile it and run '(main)' after a bunch of looping and printing it crashes with: ERROR IN looper -- Operator is not a PROCEDURE ('#<return #2>)
Any ideas? (or am I being stupid?!)
I'm just guessing here, but could it be that, since your lambda expression is not reference anywhere else in your Scheme code, it gets GC'd?
Dominique