id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,os,architecture,failure,difficulty,testcase,blockedby,blocking,related
2987,panic when compiling again,dsrogers,igloo,"haskelldb 0.10 doesn't build under ghc 6.10.1.  I download it with:
{{{
cabal fetch
}}}
Then unpack it and use the attached modified .cabal file to enable a build with:
{{{
cabal build
}}}
It should build.  Do a
{{{
cabal install
}}}
It will then attempt to rebuild, but will fail with the error:

{{{
[18 of 25] Compiling Database.HaskellDB.Database ( src/Database/HaskellDB/Database.hs, dist/build/Database/HaskellDB/Database.o )
ghc: panic! (the 'impossible' happened)
  (GHC version 6.10.1 for i386-apple-darwin):
	idInfo r{tv adJo} [tv]

}}}
However, if you clean and then install it will succeed

{{{
cabal clean
cabal install
}}}

ghc 6.10.1 doesn't like something about the intermediate files left over from the cabal build step.



",bug,closed,normal,,Compiler,6.10.1,fixed,,,Unknown/Multiple,Unknown/Multiple,,Unknown,,,,