compiler crash building hashed-storage 0.5.3
ghc: panic! (the 'impossible' happened)
(GHC version 7.0.0.20100924 for x86_64-unknown-linux):
Expected one of wanted constraints (BUG)This happens with cabal install hashed-storage-0.5.3, but that's a bit of a pain to reproduce as it depends on dataenc which needs a dependency bump. I cut it down to the attached file which just depends on mtl.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.13 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | ganesh |
| Operating system | |
| Architecture |