#12198: Stack fails to compile using GHC 8.0.1 on MacOS 10.12 -------------------------------------+------------------------------------- Reporter: mistydemeo | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- GHC failed when trying to build stack from source on MacOS 10.12 using GHC 8.0.1. The relevant part of the error is here: {{{ [ 1 of 87] Compiling Stack.FileWatch ( src/Stack/FileWatch.hs, dist/dist- sandbox-68bf8d9c/build/Stack/FileWatch.o ) [ 2 of 87] Compiling System.Process.PagerEditor ( src/System/Process/PagerEditor.hs, dist/dist-sandbox- 68bf8d9c/build/System/Process/PagerEditor.o ) [ 3 of 87] Compiling System.Process.Log ( src/System/Process/Log.hs, dist /dist-sandbox-68bf8d9c/build/System/Process/Log.o ) [ 4 of 87] Compiling System.Process.Read ( src/System/Process/Read.hs, dist/dist-sandbox-68bf8d9c/build/System/Process/Read.o ) ghc: panic! (the 'impossible' happened) (GHC version 8.0.1 for x86_64-apple-darwin): Loading temp shared object failed: dlopen(/var/folders/4d/rttdp_9d2s7f36zplgwnqrgr0000gn/T/ghc94633_0/libghc_44.dylib, 5): no suitable image found. Did find: /var/folders/4d/rttdp_9d2s7f36zplgwnqrgr0000gn/T/ghc94633_0/libghc_44.dylib: malformed mach-o: load commands size (40192) > 32768 }}} Full build logs (includes dependency installation via cabal-install): https://gist.github.com/8e005710eab17139c02267bac3029e33 This occurred when installing stack, but reporting here because of the "Please report this as a GHC bug" message in the failed build output. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12198 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler