#4498: ghc 7.0.1 and 7.1.20101112+ panic building blaze-builder-0.2.0.1
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Reporter: awson | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.0.1
Keywords: | Testcase:
Blockedby: | Difficulty:
Os: Unknown/Multiple | Blocking:
Architecture: Unknown/Multiple | Failure: Compile-time crash
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Comment(by simonpj):
A bit of detective work later I can see what is happening. I couldn't
reproduce the error, but the panic was enough that I could work it out.
My guess is that you have `-XNoMonoPatBinds` on, perhaps via `-XHaskell98`
or something. But I could see no such flags in the `.cabal` file.
There should not be a crash, so I'll fix that. But you can make progress
by adding a `{-# LANGUAGE MonoPatBinds #-}` to this module.
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4498#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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