anchor.diff:      }
   
       fixDarwinDylibNames $(find "$(pwd)/lib" -name "*.dylib")
  +    export DYLD_LIBRARY_PATH=$(pwd)/lib
     ''
     else
       "";
  
positive.code: { stdenv, fetchurl, cmake, llvm, curl, tzdata
  , python, libconfig, lit, gdb, unzip, darwin, bash
  , callPackage, makeWrapper, targetPackages
  , bootstrapVersion ? false
  , version ? "1.14.0"
  , ldcSha256 ? "147vlzzzjx2n6zyz9wj54gj046i1mw5p5wixwzi5wkllgxghyy9c"
  }:
  
  let
  
negative.code: 
    checkPhase = stdenv.lib.optionalString doCheck ''
      # Build default lib test runners
      ninja -j$NIX_BUILD_CORES all-test-runners
  
      ${fixNames}
  
  