#9938: cryptarithm2 fails with undefined reference to `transzuH9c1w14lEUN3zzdWCTsn8jG_ControlziMonadziTransziStateziLazzy_zdwzdcp0Alternative_info' -------------------------------------+------------------------------------- Reporter: nomeata | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by rwbarton): I'm confused, isn't your minimized test case showing the expected behavior? GHC doesn't really know what's in `Main.o` and that it needs to link against transformers, so you have to specify `-package transformers` at link time. I don't understand how changing the order of the cases in `solve` could affect anything, and I also can't reproduce it here. Not sure what is going on with cryptarithm2 then, did it somehow gain a link-time dependency on transformers (whereas previously, perhaps, all the functions in transformers had been inlined)? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9938#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler