malformed mach-o

[LiamGoodacre]

Stack version: 1.1.2 x86_64 hpack-0.14.0

This is my first time trying to build after upgrading to macOS Sierra, but I don't know if that is related in any way to what's happening.
After first trying to build purescript I see the following:

...
[2 of 2] Compiling Main             ( psc-ide-server/Main.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/psc-ide-server/psc-ide-server-tmp/Main.o ) [Network.Socket changed]
<command line>: can't load .so/.DLL for: ~/git/purescript/.stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/libHSpurescript-0.10.1-DuUlgyFgUgfCeepCOmAPc5-ghc7.10.3.dylib (dlopen(~/git/purescript/.stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/libHSpurescript-0.10.1-DuUlgyFgUgfCeepCOmAPc5-ghc7.10.3.dylib, 5): no suitable image found.  Did find:
        ~/git/purescript/.stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/libHSpurescript-0.10.1-DuUlgyFgUgfCeepCOmAPc5-ghc7.10.3.dylib: malformed mach-o: load commands size (35048) > 32768)
Progress: 9/10
--  While building package purescript-0.10.1 using:
      ~/.stack/setup-exe-cache/x86_64-osx/setup-Simple-Cabal-1.22.5.0-ghc-7.10.3 --builddir=.stack-work/dist/x86_64-osx/Cabal-1.22.5.0 build lib:purescript exe:psc exe:psc-bundle exe:psc-docs exe:psc-hierarchy exe:psc-ide-client exe:psc-ide-server exe:psc-publish exe:psci test:tests --ghc-options " -ddump-hi -ddump-to-file"
    Process exited with code: ExitFailure 1

Didn't know what to do with that, so I tried a stack upgrade to see if that would help:

...
stack-1.2.0: configure
[1 of 1] Compiling Main             ( /private/var/folders/z7/z51s4jss7mx610k7r2wgrj2r0000gn/T/stack-upgrade17450/stack-1.2.0/Setup.hs, /private/var/folders/z7/z51s4jss7mx610k7r2wgrj2r0000gn/T/stack-upgrade17450/stack-1.2.0/.stack-work/dist/x86_64-osx/Cabal-1.22.5.0/setup/Main.o )
Linking /private/var/folders/z7/z51s4jss7mx610k7r2wgrj2r0000gn/T/stack-upgrade17450/stack-1.2.0/.stack-work/dist/x86_64-osx/Cabal-1.22.5.0/setup/setup ...
Configuring stack-1.2.0...
stack-1.2.0: build
Preprocessing library stack-1.2.0...
[ 1 of 96] Compiling Text.PrettyPrint.Leijen.Extended ( src/Text/PrettyPrint/Leijen/Extended.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Text/PrettyPrint/Leijen/Extended.o )
[ 2 of 96] Compiling Stack.Ghci.Script ( src/Stack/Ghci/Script.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Stack/Ghci/Script.o )
[ 3 of 96] Compiling Stack.FileWatch  ( src/Stack/FileWatch.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Stack/FileWatch.o )
[ 4 of 96] Compiling System.Process.PagerEditor ( src/System/Process/PagerEditor.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/System/Process/PagerEditor.o )
[ 5 of 96] Compiling System.Process.Log ( src/System/Process/Log.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/System/Process/Log.o )
[ 6 of 96] Compiling Paths_stack      ( .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/autogen/Paths_stack.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Paths_stack.o )
[ 7 of 96] Compiling Path.Find        ( src/Path/Find.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Path/Find.o )
[ 8 of 96] Compiling Path.Extra       ( src/Path/Extra.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Path/Extra.o )
[ 9 of 96] Compiling System.Process.Read ( src/System/Process/Read.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/System/Process/Read.o )
ghc: panic! (the 'impossible' happened)
  (GHC version 7.10.3 for x86_64-apple-darwin):
        Loading temp shared object failed: dlopen(/var/folders/z7/z51s4jss7mx610k7r2wgrj2r0000gn/T/ghc22600_0/libghc_55.dylib, 5): no suitable image found.  Did find:
        /var/folders/z7/z51s4jss7mx610k7r2wgrj2r0000gn/T/ghc22600_0/libghc_55.dylib: malformed mach-o: load commands size (47960) > 32768

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

Completed 178 action(s).

--  While building package stack-1.2.0 using:
      /private/var/folders/z7/z51s4jss7mx610k7r2wgrj2r0000gn/T/stack-upgrade17450/stack-1.2.0/.stack-work/dist/x86_64-osx/Cabal-1.22.5.0/setup/setup --builddir=.stack-work/dist/x86_64-osx/Cabal-1.22.5.0 build lib:stack exe:stack --ghc-options " -ddump-hi -ddump-to-file"
    Process exited with code: ExitFailure 1

Any help would be much appreciated.

[snoyberg]

I think you're looking for the Stack issue tracker at:

http://github.com/commercialhaskell/stack/issues

This issue looks like:

commercialhaskell/stack#2577

[LiamGoodacre]

oops! thanks a lot :)