# Pastebin C3FaAkuG
  compiler_rt = pkgs.llvmPackages_11.compiler-rt.overrideAttrs (old: {
    cmakeFlags = [
      "-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON"
      "-DCMAKE_C_COMPILER_TARGET=${stdenv.hostPlatform.config}"
      "-DCMAKE_ASM_COMPILER_TARGET=${stdenv.hostPlatform.config}"
      "-DCOMPILER_RT_BUILD_SANITIZERS=ON"
      "-DCOMPILER_RT_BUILD_XRAY=ON"
      "-DCOMPILER_RT_BUILD_LIBFUZZER=ON"
      "-DCOMPILER_RT_BUILD_PROFILE=ON"
      "-DCMAKE_C_COMPILER_WORKS=ON"
      "-DCMAKE_CXX_COMPILER_WORKS=ON"
      "-DCOMPILER_RT_BAREMETAL_BUILD=ON"
      "-DCMAKE_SIZEOF_VOID_P=${toString (stdenv.hostPlatform.parsed.cpu.bits / 8)}"
      "-DCOMPILER_RT_BUILD_BUILTINS=ON"
      "-DCMAKE_C_FLAGS=-nodefaultlibs"
      #https://stackoverflow.com/questions/53633705/cmake-the-c-compiler-is-not-able-to-compile-a-simple-test-program
      "-DCMAKE_TRY_COMPILE_TARGET_TYPE=STATIC_LIBRARY"
    ];
  });