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/flann/default.nix

@@ -0,0 +1,73 @@
+{ lib
+, cmake
+, fetchFromGitHub
+, fetchpatch
+, lz4
+, pkg-config
+, python3
+, stdenv
+, unzip
+, enablePython ? false
+}:
+
+stdenv.mkDerivation rec {
+  pname = "flann";
+  version = "1.9.1";
+
+  src = fetchFromGitHub {
+    owner = "flann-lib";
+    repo = "flann";
+    rev = version;
+    sha256 = "13lg9nazj5s9a41j61vbijy04v6839i67lqd925xmxsbybf36gjc";
+  };
+
+  patches = [
+    # Patch HDF5_INCLUDE_DIR -> HDF_INCLUDE_DIRS.
+    (fetchpatch {
+      url = "https://salsa.debian.org/science-team/flann/-/raw/debian/1.9.1+dfsg-9/debian/patches/0001-Updated-fix-cmake-hdf5.patch";
+      sha256 = "yM1ONU4mu6lctttM5YcSTg8F344TNUJXwjxXLqzr5Pk=";
+    })
+    # Patch no-source library workaround that breaks on CMake > 3.11.
+    (fetchpatch {
+      url = "https://salsa.debian.org/science-team/flann/-/raw/debian/1.9.1+dfsg-9/debian/patches/0001-src-cpp-fix-cmake-3.11-build.patch";
+      sha256 = "REsBnbe6vlrZ+iCcw43kR5wy2o6q10RM73xjW5kBsr4=";
+    })
+  ] ++ lib.optionals (!stdenv.cc.isClang) [
+    # Avoid the bundled version of LZ4 and instead use the system one.
+    (fetchpatch {
+      url = "https://salsa.debian.org/science-team/flann/-/raw/debian/1.9.1+dfsg-9/debian/patches/0003-Use-system-version-of-liblz4.patch";
+      sha256 = "xi+GyFn9PEjLgbJeAIEmsbp7ut9G9KIBkVulyT3nfsg=";
+    })
+    # Fix LZ4 string separator issue, see: https://github.com/flann-lib/flann/pull/480
+    (fetchpatch {
+      url = "https://github.com/flann-lib/flann/commit/25eb56ec78472bd419a121c6905095a793cf8992.patch";
+      sha256 = "qt8h576Gn8uR7+T9u9bEBIRz6e6AoTKpa1JfdZVvW9s=";
+    })
+  ];
+
+  cmakeFlags = [
+    "-DBUILD_EXAMPLES:BOOL=OFF"
+    "-DBUILD_TESTS:BOOL=OFF"
+    "-DBUILD_MATLAB_BINDINGS:BOOL=OFF"
+    "-DBUILD_PYTHON_BINDINGS:BOOL=${if enablePython then "ON" else "OFF"}"
+  ];
+
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+    unzip
+  ];
+
+  # lz4 unbundling broken for llvm, use internal version
+  propagatedBuildInputs = lib.optional (!stdenv.cc.isClang) lz4;
+
+  buildInputs = lib.optionals enablePython [ python3 ];
+
+  meta = {
+    homepage = "https://github.com/flann-lib/flann";
+    license = lib.licenses.bsd3;
+    description = "Fast approximate nearest neighbor searches in high dimensional spaces";
+    maintainers = with lib.maintainers; [viric];
+    platforms = with lib.platforms; linux ++ darwin;
+  };
+}