anchor.diff:    # https://github.com/cython/cython/issues/2785
     # Temporary solution
     doCheck = false;
  -
  -#   doCheck = !stdenv.isDarwin;
  -
  +  # doCheck = !stdenv.isDarwin;
   
     meta = {
       description = "An optimising static compiler for both the Python programming language and the extended Cython programming language";
  
positive.code:   nativeBuildInputs = [
      pkg-config
    ];
    checkInputs = [
      gdb numpy ncurses
    ];
    buildInputs = [ glibcLocales ];
    LC_ALL = "en_US.UTF-8";
  
  
negative.code: }:
  
  let
    excludedTests = [ "reimport_from_subinterpreter" ]
      # cython's testsuite is not working very well with libc++
      # We are however optimistic about things outside of testsuite still working
      ++ lib.optionals (stdenv.cc.isClang or false) [ "cpdef_extern_func" "libcpp_algo" ]
  