[ ghc-Bugs-1277023 ] panic! mkWWcpr: not a product

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Bugs item #1277023, was opened at 2005-08-31 00:19
Message generated for change (Comment added) made by simonpj
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Category: Compiler
Group: 6.4
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: panic! mkWWcpr: not a product

Initial Comment:
I encountered the following bug:

ghc-6.4: panic! (the `impossible' happened, GHC version
6.4):
        mkWWcpr: not a product SPIRziSPIR.SPIR{tc r3jI}

Please report it as a compiler bug to
glasgow-haskell-bugs at haskell.org,
or http://sourceforge.net/projects/ghc/.

This was in conjunction with the use of .hs-boot files
for recursive modules, though I don't know for sure if that
actually caused the problem.

Unfortunate I can't provide a simple reproducible test case
at this point, but I thought I'd let you know about the
bug anyway.

Fergus Henderson <fjh-mailbox-30 at galois.com>

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>Comment By: Simon Peyton Jones (simonpj)
Date: 2005-09-01 08:07

Message:
Logged In: YES 
user_id=50165

Definitely a bug, but hard to find without a test case.

Were you using --make?  We've got a known problem there.


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