Error reading interface files

I've had a problem using GHC exporting the constuctor (:::). Here is a cut down version that causes the problem. --8< module MyList (MyList(Empty, (:::))) where data MyList a = Empty | (MyList a) ::: (MyList a) --8< module User where

-recomp oddness.

I'm not sure if this is Known Deficiency or not, but ghc-2.09 -recomp still seems to get confused when new exported items have been added to a module, on which the -recomp'd module depends. It misses any (or at least, some) name-clashes, until some later point when recompilation is forced, only

panic! (the `impossible' happened) (2.09, patchlevel 0)

{- Hi, Compiling the following module results in the following error message (with GHC 2.09, patchlevel 0, i386-linux -- panic! (the `impossible' happened): getWorkerIdAndCons area2{-r3g,x-}{i} Pl

Re: Error reading interface files

Andrew Rock <[EMAIL PROTECTED]> writes: > I've had a problem using GHC exporting the constuctor (:::). > > Here is a cut down version that causes the problem. > [...] Thanks for a fine bug report, fixed in the upcoming 2.10 release. Cheers, Simon -- Simon Marlow