anchor.diff:      llvmPackages.clang-unwrapped # we need to link against libclang, so we need the unwrapped
     ];
   
  -  patches = [
  -    (fetchpatch {
  -      url = https://github.com/ispc/ispc/commit/d504641f5af9d5992e7c8f0ed42c1063a39ede5b.patch;
  -      sha256 = "192q3gyvam79469bmlwf0jpfi2y4f8hl2vgcvjngsqhvscwira0s";
  -    })
  -  ];
  -
  -  postPatch = "sed -i -e 's/\\/bin\\///g' -e 's/-lcurses/-lncurses/g' Makefile";
  +  postPatch = "sed -i -e 's,/bin/,,g' -e 's/-lcurses/-lncurses/g' Makefile";
   
     # TODO: this correctly catches errors early, but also some things that are just weird and don't seem to be real
     # errors
  
positive.code: }:
  
  stdenv.mkDerivation rec {
    version = "1.9.2";
    rev = "v${version}";
  
    inherit testedTargets;
  
negative.code:     owner = "ispc";
      repo = "ispc";
      inherit rev;
      sha256 = "1x07n2gaff3v32yvddrb659mx5gg12bnbsqbyfimp396wn04w60b";
    };
  
    # there are missing dependencies in the Makefile, causing sporadic build failures
  