More Finaliser Trouble

[Alastair Reid]

> [...] doesn't answer the question of why these things have changed [...]

We dropped Haskell finalizers because neither Hugs nor NHC could implement 
them and implementing them would pretty much require them to implement 
preemptive concurrency (i.e., multiple threads each with their own stacks).

These issues were considered important because one goal of the ffi spec was to 
improve portability between implementations and also because we explicitly 
decided not to do anything that requires concurrency or other H98 extensions.

--
Alastair Reid