-> for gnu classpath absolutely necessary
-> estimated effort: unknown
+(l) replace signals with "nice traps"?
+ pro -> don't rely on operating system anymore
+ pro -> maybe better ghci behaviour?
+ cons -> at some point, signals are useful for debugging?
+ cons -> better "template" tricks are needed, as we cannot insert more
+ instructions or want to place nop's at production code path
+
(l) gnu classpath integration
-> would be awwwesome
-> depends on: exceptions, jni (?)