#10192: Template Haskell crashes when building yesod-core package -------------------------------------+------------------------------------- Reporter: DanielDiaz | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.4 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by DanielDiaz): Replying to [comment:1 snoyberg]:
Seems like the bug is that it's forcing a new installation of template- haskell, which isn't working. I'd recommend adding a constraint requiring `template-haskell installed` and see if that fixes your problem. I would definitely advise against such an upgrade.
That indeed worked. I added "constraint: template-haskell installed" to my {{{~/.cabal/config}}} file and I built yesod-core successfully. I must admit I didn't knew about the constraint on installed versions. If it's the case that template-haskell should not be upgraded... Shouldn't this constraint be there by default? Or somehow enforced by any other means? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10192#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler