[Haskell-cafe] GHC 7.10.1 on OS X

Yongqian Li yongqli at kerrmetric.com
Mon Mar 30 17:32:12 UTC 2015

Does anyone know how to resolve this issue? When I do a "cabal build", I get

     error: unknown directive
            .macosx_version_min 10, 0

<no location info>:
    Error running clang! you need clang installed to use theLLVM backend
    (or GHC tried to execute clang incorrectly)

<no location info>:
    ghc: phase `Clang (Assembler)' failed (exitcode = 1)

However, my clang is fine, as is my LLVM:

 % clang --version
Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn)
Target: x86_64-apple-darwin14.1.0
Thread model: posix

 % opt --version
 LLVM (http://llvm.org/):
  LLVM version 3.5.1
  Optimized build with assertions.
  Built Jan 15 2015 (18:24:46).
  Default target: x86_64-apple-darwin14.1.0
  Host CPU: core-avx2

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