#15594: --abi-hash with Backpack incorrectly loads modules from dependent packages -------------------------------------+------------------------------------- Reporter: ezyang | Owner: (none) Type: bug | Status: patch Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.4.3 Resolution: | Keywords: backpack Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D5123 Wiki Page: | -------------------------------------+------------------------------------- Description changed by ezyang: Old description:
Repro at: https://github.com/alexbiehl/cabal-backpack-register-repro
New description: Repro at: https://github.com/alexbiehl/cabal-backpack-register-repro If you use Backpack with data families, you might fail during `--abi-hash` with: {{{ cabal: '/nix/store/m338klajhqlw7v4jd61fiqd82wx305fj-ghc-8.4.3-with- packages/bin/ghc' exited with an error: Failed to load interface for ‘Stuff’ no unit id matching ‘backpack-trans-0.1.0.0-L6CFTQZAAWWFpCQD2NXR4W-indef’ was found }}} -- -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15594#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler