| ghc has trouble compiling let expressions inside list comprehensions.
| when i replace let foo =3D bar with foo <- [bar], then everything seems
| to work.
| 
| is this a known bug? (if no, do you need example files that reporduce it?=
| )
| 
| is my workaround morally correct (strictness, polymorphism,...)?=20

Yes, it's a known bug.  (It just got left out by mistake.)

Your workaround is fine (but not quite as polymorphic using let).

We're working hard on a new release....

Simon

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