Backpack - TH+indefinite module interface file error
Repro: https://github.com/LightAndLight/backpack-test
I've been stuck on this for a while now. There's a weird interaction between the Template Haskell pragma and indefinite modules. When Template Haskell is enabled in this particular file (but TH features aren't used) I get an interface error. When I remove the pragma, the project successfully compiles.
I hope I haven't made some trivial .cabal blunder.
Anyway, I'm interested in potentially trying to fix this, but I've been digging around in GHC for a couple of days and figured it was time to ask for help.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.7 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
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| Related | |
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| CC | |
| Operating system | |
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