uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/libraries/aws-c-common/default.nix

@@ -0,0 +1,54 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, cmake
+, coreutils
+}:
+
+stdenv.mkDerivation rec {
+  pname = "aws-c-common";
+  version = "0.7.0";
+
+  src = fetchFromGitHub {
+    owner = "awslabs";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-DKorZUVUDEP4IRPchzaW35fPLmYoJRcfLMdPHrBrol8=";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  cmakeFlags = [
+    "-DBUILD_SHARED_LIBS=ON"
+    "-DCMAKE_SKIP_BUILD_RPATH=OFF" # for tests
+  ] ++ lib.optionals stdenv.hostPlatform.isRiscV [
+    "-DCMAKE_C_FLAGS=-fasynchronous-unwind-tables"
+  ];
+
+  # aws-c-common misuses cmake modules, so we need
+  # to manually add a MODULE_PATH to its consumers
+  setupHook = ./setup-hook.sh;
+
+  # Prevent the execution of tests known to be flaky.
+  preCheck = let
+    ignoreTests = [
+      "promise_test_multiple_waiters"
+    ] ++ lib.optionals stdenv.hostPlatform.isMusl [
+      "sba_metrics" # https://github.com/awslabs/aws-c-common/issues/839
+    ];
+  in ''
+    cat <<EOW >CTestCustom.cmake
+    SET(CTEST_CUSTOM_TESTS_IGNORE ${toString ignoreTests})
+    EOW
+  '';
+
+  doCheck = true;
+
+  meta = with lib; {
+    description = "AWS SDK for C common core";
+    homepage = "https://github.com/awslabs/aws-c-common";
+    license = licenses.asl20;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ orivej eelco r-burns ];
+  };
+}

pkgs/development/libraries/aws-c-common/setup-hook.sh

@@ -0,0 +1,5 @@
+addAwsCCommonModuleDir() {
+    cmakeFlags="-DCMAKE_MODULE_PATH=@out@/lib/cmake ${cmakeFlags:-}"
+}
+
+postHooks+=(addAwsCCommonModuleDir)