#10531: modules that can be linked successfully when compiled with optimizations, fail to link with: multiple definition of `__stginit_ZCMain' -------------------------------------+------------------------------------- Reporter: imz | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.1 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 Type of failure: GHC rejects | (amd64) valid program | Test Case: attached Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by ezyang): The manual suggests that recompilation checking doesn't really work with `-main-is`: https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/options- phases.html (the problem being that when you build `B.hs` the second time, it needs to recompile `A.hs` with a DIFFERENT `-main-is` flag.) But it sort of looks like dterei tried to fix this in #437, so maybe this was intended to be fixed, and the manual wasn't updated? In any case, this looks like a fine bug to me. Once fixed the admonition from the manual should be removed. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10531#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler